JP2019211030A - Frictional damper and wall surface body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a friction damper which is made of wood and has high reliability for maintaining a pressing force for a long term, and a wall body provided with this friction damper. A friction member, a plate member, and a fastener are provided, and the friction member is made of wood and is provided integrally with one member along an opposing portion to the other member and forms a groove portion extending in a predetermined direction. Both sides of the groove part are sandwiching parts, both sandwiching parts are provided with wooden orthogonal parts, and the plate member is made of metal and is provided integrally with the other member along the facing part to the one member. , A long hole extending in a predetermined direction is formed, is inserted into a groove portion of the friction material and is sandwiched by both holding portions, and a fastener is provided along the facing portion of one member and the other member. The two pinching parts of the friction material and the long holes of the plate material are tightened in a direction to bring the two pinching parts closer to each other.The both pinching parts press the plate material from both sides, and Friction force generated by the direction of action and the fiber direction of the orthogonal part being parallel to each other and orthogonal to the clamping force of the fastener And the fiber direction of the friction material are parallel. [Selection diagram]

Description

  The present invention relates to a friction damper for attenuating vibration interposed between two members that move relative to each other in a predetermined direction by vibration, and a wall surface provided with the friction damper.

  In order to improve the seismic performance of a wooden building, it is effective to dampen vibration by providing a damper between the two members to be connected. Most of conventional dampers use industrial materials such as steel and rubber.

  On the other hand, a damper using the same wood is also demanded as a damper used for a wooden building. In Patent Document 1, the applicant can apply friction to various structures and friction using wood that can be retrofitted to the building. A damper and a wall body provided with the friction damper are proposed.

Japanese Patent Laid-Open No. 2015-215081

  In the invention of Patent Document 1, the pressing force using the indentation of the friction material in the direction perpendicular to the fiber utilizes the properties of the wood plastic region, and has obtained good stress relaxation behavior. When exposed to conditions, there was concern about a decrease in stress. In order to increase the reliability of maintaining the pressing force for a long time, high reliability is required even under severe conditions, and a more reliable friction damper has been demanded.

  The present invention has been made in view of the above circumstances, and uses a wood, and an object thereof is to provide a friction damper having high reliability for maintaining a long-term pressing force and a wall body provided with the friction damper. And

  The invention according to claim 1 of the present invention is arranged to be opposed to each other extending in a predetermined direction and relatively moving in a predetermined direction by vibration, and is interposed between one member and the other member to attenuate the vibration, A friction material, a plate material, and a fastener are provided, and the friction material is made of wood, is provided integrally with one member, along a facing portion with respect to the other member, and forms a groove extending in a predetermined direction, Both sides of the groove portion are sandwiching portions, both sandwiching portions are provided with wooden orthogonal portions, the plate material is made of metal, and is provided integrally with the other member along the facing portion with respect to the one member, in a predetermined direction. A long hole extending is formed, inserted into the groove portion of the friction material and sandwiched between both clamping portions, and a fastener is provided along the opposing portion of the one member and the other member. Tighten in a direction that allows both clamping parts to pass through each other and the long holes in the plate material. Both clamping parts press the plate material from both sides, and the direction of the pressing force by the clamp is parallel to the fiber direction of the orthogonal part, and the frictional force generated perpendicular to the pressing force by the clamp The working direction and the fiber direction of the friction material are parallel.

  According to the second aspect of the present invention, the vibration is attenuated by being interposed between one wooden member and the other member, which extend in a predetermined direction and face each other and move relative to each other in a predetermined direction by vibration. Two friction materials, a fastener, and a long hole formed in one member extending in a predetermined direction, both friction materials are made of wood, have an orthogonal part, and integrally with the other member, facing one member And the clamp is provided along the opposing part of the one member and the other member, and penetrates the friction material and the long hole of the one member. Both friction materials are tightened in a direction to bring them closer to each other, the two friction materials press one member from both sides, and the direction in which the pressing force is applied by the fastener is parallel to the fiber direction of the orthogonal portion. The direction of the friction force generated perpendicular to the pressing force caused by the friction and the fiber direction of the friction material are parallel And wherein the Rukoto.

  The invention according to claim 3 of the present invention is a plate member that is opposed to and extends in a predetermined direction and is relatively moved in a predetermined direction by vibration, and is interposed between one member and the other member to attenuate vibration. A fixing member and a fastening tool, and one member and the other member are made of wood and each has a groove portion extending in a predetermined direction, and both sides of the groove portion are sandwiching portions, and the opening of the groove portion is mutually connected. The both holding parts of one member are provided with wooden orthogonal parts, the both holding parts of the other member are provided with fixing holes, the plate is made of metal, and has a long hole extending in a predetermined direction and a fixing hole. The long hole is on one member side and the fixing hole is on the other member side, and is disposed in both groove portions so as to straddle the one member and the other member, and is sandwiched between the both holding portions, It is provided in the member and passes through the fixing hole of the other member and the fixing hole of the plate material. The clamp is provided in one member, passes through the orthogonal part of the one member and the long hole of the plate material, and clamps the clamping parts in a direction approaching each other. The plate material is pressed from both sides, and the direction in which the pressing force is applied by the fastener and the fiber direction of the orthogonal portion are parallel to each other.

  According to a fourth aspect of the present invention, in the first, second, or third aspect, the orthogonal portion is a rod-shaped member that extends in a direction in which a pressing force is applied by the fastener, and the fastener is an axial direction of the rod-shaped member. It is characterized by penetrating through.

  According to a fifth aspect of the present invention, in the first, second, or third aspect, the orthogonal part is a plate-like member positioned on both sides of the fastener.

  According to a sixth aspect of the present invention, in the second, fourth, or fifth aspect, the one member includes a metal reinforcing member, and the reinforcing member is provided with a long hole.

  The invention according to claim 7 of the present invention is the reinforcement member according to claim 2, 4 or 5, wherein the one member includes a wooden reinforcing member, and the reinforcing member is formed of a plywood laminated with thin plates crossing the fiber directions. The plywood surface direction is parallel to the direction in which the pressing force is applied by the fastener.

  According to an eighth aspect of the present invention, in the second, fourth or fifth aspect, the one member includes a wooden reinforcing member, the reinforcing member has an orthogonal portion, and the orthogonal portion is provided along the elongated hole. And the fiber direction of the orthogonal portion is parallel to the tightening direction of the fastener.

  According to a ninth aspect of the present invention, in the first, second, fourth, fifth, sixth, seventh, or eighth aspect, the friction material is subjected to an acceleration treatment.

  The invention according to claim 10 of the present invention includes the one member made of a face material, the other member made of a rectangular pillar, and the friction damper according to claim 1, 2, 4, 5, 6, 7 or 8. And one member is provided so as to cover substantially the entire inner peripheral side of the other member, and a friction damper is provided between the one member and the other member with a gap in the circumferential direction. .

  According to an eleventh aspect of the present invention, the frame includes the frame member, the one member and the other member made of a face material, and the friction damper according to the third, fourth, or fifth aspect, and the gap between the one member and the other member A friction damper is provided, and one member and the other member are alternately connected in a predetermined direction to cover substantially the entire inner peripheral side of the frame.

  According to the first aspect of the present invention, when one member and the other member are moved relative to each other by vibration, a frictional force is generated between the wooden friction material and the metal plate, thereby damping the vibration. be able to. Since both sandwiched portions of the friction material are provided with orthogonal portions, the direction in which the pressing force by the fastener is applied and the fiber direction of the orthogonal portions are parallel to each other, so that a high residual stress rate can be maintained even under severe conditions. In addition, wood is very vulnerable to shear in the direction perpendicular to the fiber. For this reason, there is a possibility that the orthogonal part may be sheared and destroyed by the force in the direction perpendicular to the fiber due to the frictional force, but the direction of the frictional force generated perpendicular to the pressing force by the fastener is parallel to the fiber direction of the friction material. The shear stress generated in the orthogonal portion is reduced, and shear failure can be prevented.

  According to invention of Claim 2 among this invention, when one member and the other member move relatively by vibration, a frictional force arises between a wooden friction material and one wooden member, and a vibration is attenuated. be able to. Both friction materials are provided with orthogonal portions, and the direction in which the pressing force exerted by the fastener is applied is parallel to the fiber direction of the orthogonal portions, so that a high residual stress rate can be maintained even under severe conditions. In addition, wood is very vulnerable to shear in the direction perpendicular to the fiber. For this reason, there is a possibility that the orthogonal part may be sheared and destroyed by the force in the direction perpendicular to the fiber due to the frictional force, but the direction of the frictional force generated perpendicular to the pressing force by the fastener is parallel to the fiber direction of the friction material. The shear stress generated in the orthogonal portion is reduced, and shear failure can be prevented.

  According to invention of Claim 3 among this invention, when one member and the other member move relatively by vibration, a frictional force arises between one wooden member and a metal board | plate material, and a vibration is attenuated. be able to. Since the metal plate is arranged in both grooves so as to straddle the one member and the other member, the direction of the pressing force by the fastener and the fiber direction of the orthogonal portion are parallel, so one member and the plate While maintaining a high residual stress rate, good frictional behavior can be obtained.

  According to the invention of claim 4 of the present invention, the orthogonal part is a rod-like member extending in the direction in which the pressing force by the fastener is applied, and the fastener penetrates in the axial direction of the rod-like member. A pressing force acts in a direction parallel to the wood fiber, and a high residual stress rate can be maintained even under severe conditions, and a good frictional behavior can be obtained. Moreover, by making it a rod-shaped member, it can be inserted and bonded to provide an orthogonal portion at an arbitrary location.

  According to the invention of claim 5 among the present invention, since the orthogonal part is a plate-like member located on both sides of the fastener, a pressing force acts in a direction parallel to the wood fiber, and it is under severe conditions. In addition, a high stress residual ratio can be maintained and good frictional behavior can be obtained.

  According to invention of Claim 6 among this invention, since the long hole is provided in the metal reinforcement member with which one member is equipped, the stress relaxation by one member can be reduced.

  According to the seventh aspect of the present invention, the reinforcing member provided in the one member is composed of a plywood laminated with thin plates intersecting the fiber directions, the oblong hole is provided in the reinforcing member, and the surface direction of the plywood is tightened. Since it is parallel to the direction in which the pressing force by the attachment works, a high stress residual rate can be maintained even under severe conditions.

  According to invention of Claim 8 among this invention, the reinforcement member with which one member is provided has an orthogonal part, the orthogonal part is provided along the long hole, and the fiber direction of the orthogonal part is the fastening direction of a fastener. Therefore, a pressing force acts in the direction parallel to the wood fibers, and a high residual stress rate can be maintained even under severe conditions.

  According to the ninth aspect of the present invention, since the friction material is subjected to the acceleration treatment, it is possible to provide a highly reliable friction damper capable of maintaining a high pressing force in the long term.

  According to invention of Claim 10 among this invention, it can be set as a wall surface body provided with high rigidity and high damping performance. And in particular, in a wooden building in which both the face material and the pillar material are made of wood, the friction damper according to claim 1 and the friction damper according to claim 2 are appropriately selected, so that it can be applied to both the true wall and the large wall. Can do. Further, in a factory, a face material and a friction material can be manufactured as a set to produce a vibration-damping surface material, which can be inserted into a shaft assembly on site and can be retrofitted to a building.

  According to invention of Claim 11 among this invention, it can be set as the wall surface body provided with high rigidity and high attenuation | damping performance.

It is a principal part schematic diagram of 1st embodiment of a friction damper, Comprising: (a) is a front view, (b) is a top view. It is a front view of a first embodiment of a friction damper. It is a top view of a first embodiment of a friction damper. It is a graph which shows the stress relaxation behavior in the indoor environment of 1st embodiment of a friction damper compared with a conventional product. It is a graph which shows the stress relaxation behavior in the high temperature, high humidity environment of 1st embodiment of a friction damper compared with a conventional product. It is a principal part schematic diagram of 2nd embodiment of a friction damper, Comprising: (a) is a front view, (b) is a top view. It is a front view of a second embodiment of a friction damper. It is a top view of a second embodiment of a friction damper. It is a graph which shows the displacement-load relationship of 1st embodiment of a friction damper. It is a graph which shows the displacement-load relationship of 2nd embodiment of a friction damper. It is a graph which shows the stress relaxation behavior in the wet and dry repeated environment of 1st embodiment and 2nd embodiment of a friction damper. It is a graph which shows the stress relaxation behavior in the high-temperature, high-humidity environment of 1st embodiment and 2nd embodiment of a friction damper. (A) is a front view of the wall surface body which provided 1st embodiment of the friction damper, (b) is a cross-sectional view of the principal part. It is a graph which shows the apparent shear deformation angle-load relationship of the wall surface body which provided 1st embodiment of the friction damper. It is a front view of a third embodiment of a friction damper. It is a top view of a third embodiment of a friction damper. It is a front view of 4th embodiment of a friction damper. It is a top view of 4th embodiment of a friction damper. It is a graph which shows the displacement-load relationship of 4th embodiment of a friction damper. (A) is a front view of the wall surface body which provided 4th embodiment of the friction damper, (b) is a cross-sectional view of the principal part. The other embodiment of the one member in 3rd and 4th embodiment of a friction damper is shown, (a) is a top view, (b) is a front view. The other embodiment of the one member in 3rd and 4th embodiment of a friction damper is shown, (a) is a side view, (b) is a front view. The other embodiment of the one member in 3rd and 4th embodiment of a friction damper is shown, (a) is a side view, (b) is a front view. The other embodiment of the one member in 3rd and 4th embodiment of a friction damper is shown, (a) is a top view, (b) is a front view. The other embodiment of the one member in 3rd and 4th embodiment of a friction damper is shown, (a) is a top view, (b) is a front view. It is a front view of 5th embodiment of a friction damper. It is a longitudinal cross-sectional view of 5th embodiment of a friction damper. It is a graph which shows the displacement-load relationship of 5th embodiment of a friction damper. (A) is a front view of the wall surface body which provided 5th embodiment of the friction damper, (b) is a cross-sectional view of the principal part. It is a graph which shows the apparent shear deformation angle-load relationship of the wall surface body which provided 5th embodiment of the friction damper. It is a graph which shows the effect of the acceleration | stimulation process and retightening of 1st embodiment of a friction damper by stress relaxation behavior. It is a comparison with 1st embodiment of a friction damper, and a conventional product, Comprising: It is a graph which shows the effect of an acceleration process and a retightening by stress relaxation behavior. It is a top view of a sixth embodiment of the friction damper. A 6th embodiment of a friction damper is shown, (a) is a side view and (b) is a front view. It is a front view of the wall surface body which provided 6th embodiment of the friction damper. It is a top view of a seventh embodiment of the friction damper. It is a front view of the wall surface body which provided 7th embodiment of the friction damper.

  Specific configurations of the friction damper and the wall body of the present invention will be described with reference to the drawings. The friction damper is interposed between the one member and the other member that move relative to each other in a predetermined direction by vibration, and attenuates the vibration. The first embodiment to the fourth embodiment, the sixth embodiment, and In the seventh embodiment, one member is a wooden face member 4 and the other member is a wooden pillar member 5, the face member 4 is parallel to the longitudinal direction of the pillar member 5, and the end face of the face member 4 is the pillar member 5. As an example, a case where the face material 4 and the column material 5 are relatively moved in the longitudinal direction of the column material 5 will be described.

First, a first embodiment of the friction damper will be described. As shown in FIGS. 2 and 3, the first embodiment of the friction damper includes a friction material 1, a plate material 2, and a fastener 3.
The friction material 1 is made of wood and has a rectangular cross section and extends in the longitudinal direction of the column material 5. As shown in the schematic view of FIG. 1, the friction material 1 is a direction parallel to the direction in which the frictional force acts, in other words, tightening. The fiber direction is in a direction orthogonal to the pressing direction by the tool 3. And it is fixing to one surface of the face material 4 across the receiving plate 6 which consists of a rectangular steel plate along the opposing part with respect to the column material 5 (henceforth, let the side which fixed the friction material 1 be the front side, and the The other side is the back side). More specifically, the friction material 1 is fixed by screwing from the back side at a position near the column material 5 on the front side of the receiving plate 6, the receiving material 7 is applied to the back side of the face material 4, and the receiving plate 6 is Screwed to the face material 4 from the front side. The friction material 1 is provided with three insertion holes 14 penetrating the front and back at equal intervals, and orthogonal portions 13 are inserted and bonded to the respective insertion holes 14. In the first embodiment, the orthogonal portion 13 is a rod-like member extending in the direction in which the pressing force is applied by the fastener 3, and as shown in the schematic diagram of FIG. 1, the orthogonal portion 13 is the direction in which the groove portion 11 extends (friction). The fiber direction is in a direction orthogonal to the direction in which the force is applied, in other words, in a direction parallel to the direction of the pressing force by the fastener 3. And the bolt hole is provided in the center of the orthogonal part 13 in the front and back direction. Grooves 11 extending in the longitudinal direction of the pillar material 5 are formed on the surface of the friction material 1 on the pillar material 5 side, and both sides (the front side and the back side) of the groove part 11 serve as clamping parts 12. Both the front-side and back-side sandwiching portions 12 include orthogonal portions 13 that are divided by the groove portion 11 into the front side and the back side. One side of the L-shaped member 22 made of steel and extending in the longitudinal direction of the column member 5 is fixed by screwing to the surface of the column member 5 on the face member 4 side. The other side that extends is the plate material 2.
The plate material 2 is inserted into the groove portion 11 of the friction material 1 and is sandwiched between both sandwiching portions 12. Further, as shown in FIG. 2, a long hole 21 extending in the longitudinal direction of the column member 5 is formed in the plate member 2, but the length of the long hole 21 is shorter than the length of the friction material 1. The hole 21 is hidden by the friction material 1. And the fastener 3 consisting of three bolts 3 is inserted through the bolt hole of the orthogonal portion 13, the bolt hole of the receiving plate 6 and the long hole 21 of the plate member 2, and at the tip of the bolt 3, A washer 33 is inserted and a nut 34 is screwed and tightened. The washer 33 is a circular steel plate having substantially the same diameter as the orthogonal portion 13. When the bolt 3 is tightened, a pressing force is generated in the front and back direction, the both sandwiching portions 12 are urged toward each other, and the both sandwiching portions 12 press the plate member 2 from both sides. The pressing force is a vertical force generated on the contact surface between the friction material 1 and the plate material 2, and the friction force is proportional to the vertical force.

  In the first embodiment of the friction damper configured as described above, a frictional force is generated between the wooden friction material 1 and the steel plate material 2 when the face material 4 and the column material 5 are relatively moved by vibration. Thus, vibration can be attenuated. Since both sandwiching portions 12 of the friction material 1 are provided with orthogonal portions 13 and the direction in which the pressing force applied by the fastener 3 is applied and the fiber direction of the orthogonal portions 13 are parallel, a high residual stress rate is obtained even under severe conditions. Can be maintained. At the same time, since the direction of the frictional force generated orthogonal to the pressing force by the fastener 3 and the fiber direction of the friction material 1 are parallel, the shear stress generated in the orthogonal portion 13 is reduced and shear fracture can be prevented. .

  In the conventional friction damper, the direction in which the pressing force is applied and the wood fiber direction of the friction material 1 are perpendicular. A reliability test for maintaining the pressing force was performed in comparison with the first embodiment of the conventional friction damper that compresses in the fiber vertical direction and the friction damper of the present application that compresses in the fiber parallel direction. As a result, in the indoor environment, as shown in FIG. 4, the friction damper according to the present invention still maintains the residual stress rate of about 80% even after 150 days from the start of the test. In 50 days, the residual stress rate was halved. Then, after performing the so-called acceleration treatment in which the friction damper is placed in an extremely high temperature and high humidity state at room temperature of 40 ° C. and humidity of 87% for 4 days, it is placed in an environment of room temperature of 20 ° C. and humidity of 65% and a reliability test for maintaining the pressing force. Carried out. As a result, as shown in FIG. 5, in the conventional friction damper in the vertical compression direction, the residual stress rate was greatly reduced to 20% after the acceleration treatment. On the other hand, the friction damper of the present invention did not show an extreme decrease. From this result, it became clear that compression in the direction parallel to the wood fiber is very advantageous for maintaining the pressing force.

  In the first embodiment of the friction damper, since the bolt 3 can move in the long hole 21 of the plate member 2, it is possible to cope with a large deformation. At that time, the bolt 3 is guided to the long hole 21. Therefore, the face material 4 and the column material 5 are prevented from relatively moving in directions other than the predetermined direction. Furthermore, since the plate member 2 is sandwiched and tightened by the both sandwiching portions 12 of the friction member 1, the pressing force by the bolt 3 can be easily adjusted. Moreover, although the case where the one member is the face member 4 and the other member is the shaft assembly 5 (the column member 5) is described here as an example, the shape and structure of the one member and the other member may be any. . Furthermore, since the frictional force generated between the friction material 1 and the plate material 2 is used, it can be applied regardless of the material and surface state of the one member and the other member. And this 1st embodiment of this friction damper can also be retrofitted to a building.

Next, a second embodiment of the friction damper will be described. As shown in FIGS. 7 and 8, the second embodiment of the friction damper includes a friction material 1, a plate material 2, and a fastener 3. The difference from the first embodiment is the configuration of the orthogonal portion 15 of the friction material 1. In the second embodiment, the orthogonal portion 15 is a plate-like member located on both sides of the fastener 3.
The friction material 1 is made of wood and has a rectangular cross section and extends in the longitudinal direction of the column material 5. As shown in the schematic diagram of FIG. 6, the friction material 1 is a direction parallel to the direction in which the frictional force acts, in other words, tightening. It has a fiber direction in a direction orthogonal to the pressing direction by the tool 3. The friction material 1 includes an orthogonal part 15. The orthogonal part 15 has a fiber direction in a direction orthogonal to the direction in which the groove 11 extends (direction in which the frictional force acts), in other words, in a direction parallel to the direction of the pressing force by the fastener 3. In accordance with the position of the long hole 21 of the plate material 2, the friction material 1 on both side portions of the fastener 3 is notched in the longitudinal direction of the column material 5, and the orthogonal portion 15 is fitted into the notch portion and bonded. ing. A bolt hole is provided between the two orthogonal portions 15 in the front and back direction. A groove portion 11 extending in the longitudinal direction of the pillar material 5 is formed on the surface of the friction material 1 on the pillar material 5 side. The groove portion 11 extends over two orthogonal portions 15, 15, and both sides (the front side and the back side) of the groove portion 11 are sandwiching portions 12. Both the front-side and back-side sandwiching portions 12 include orthogonal portions 15 that are divided by the groove portion 11 into the front side and the back side. A fastening tool 3 composed of two bolts 3 is inserted through the bolt holes of both clamping parts 12, the bolt holes of the receiving plate 6, and the long holes 21 of the plate member 2. 33 is inserted and a nut 34 is further screwed in and tightened. The washer 33 is a circular steel plate having a size larger than the width between the two orthogonal portions 15, 15, and the edge of the washer 33 is in contact with the front side surface of the two orthogonal portions 15, 15. When the bolt 3 is tightened, a pressing force is generated in the front and back direction, the both sandwiching portions 12 are urged toward each other, and the both sandwiching portions 12 press the plate member 2 from both sides. As shown in FIGS. 7 and 8, the friction material 1 may integrally have a reinforcing member 10a on the side surface on one member side, and further straddles the friction material 1 and the reinforcing member 10a on the front side surface. As described above, another reinforcing member may be applied. Further, the orthogonal portion 15 on the reinforcing member 10a side may be configured to have no reinforcing member 10a by cutting out the friction material 1 and providing it.

  In the second embodiment of the friction damper configured as described above, a frictional force is generated between the wooden friction material 1 and the steel plate material 2 when the face material 4 and the column material 5 are relatively moved by vibration. Thus, vibration can be attenuated. Both clamping parts 12 of the friction material 1 are provided with orthogonal parts 15, and the direction in which the pressing force by the fastener 3 acts and the fiber direction of the orthogonal parts 15 are parallel, so that the conditions are as severe as in the first embodiment. Can maintain a high residual stress rate. At the same time, since the direction of the frictional force generated perpendicular to the pressing force by the fastener 3 is parallel to the fiber direction of the friction material 1, the shear stress generated in the orthogonal portion 15 is reduced and shear fracture can be prevented. .

  Next, a shear test was performed on the first and second embodiments of the friction damper by repeated excitation. FIG. 9 shows the result of the first embodiment, and FIG. 10 shows the result of the second embodiment. According to this, in any of the embodiments, a stable rectangular loop having a high rigidity specific to the friction damper and almost no secondary rigidity was obtained.

  Furthermore, the result of having implemented the reliability test of pressing force maintenance about 1st embodiment and 2nd embodiment of a friction damper is shown. FIG. 11 shows the result of measurement of the stress residual rate of the friction damper in a dry and wet cycle in which the environment at room temperature 20 ° C. and humidity 40% and the environment at room temperature 20 ° C. and humidity 80% are repeated. In FIG. 12, after performing the so-called acceleration treatment in which the friction damper is placed in an extremely high temperature and high humidity state of room temperature of 40 ° C. and humidity of 87% for 4 days, the stress residual rate was measured by placing it in an environment of room temperature of 20 ° C. and humidity of 65%. It is a result. From these results, it was confirmed that in all of the embodiments, the residual stress rate was relatively stable and the pressing force was not greatly reduced.

  Next, the wall surface body provided with this friction damper will be described. FIG. 13A shows a wall surface provided with the first embodiment of the friction damper, which includes a face member 4, a shaft assembly, and a friction damper 100. The face material 4 is a wooden and rectangular plate material, and the shaft assembly is formed by left and right column members 5 and 5 and upper and lower beam members 8 and 8 being formed by a four-round framework, and the inner peripheral side of the shaft assembly. The face material 4 is attached to the surface. The gap between the face member 4 and the left and right column members 5 is narrow (for example, about 0.5 mm), and the gap between the face member and the upper and lower beam members 8 is wide (for example, 25 mm). degree). As the vibration, seismic motion is assumed. When the wall body is vibrated in the horizontal direction, the shaft assembly is deformed so as to be a parallelogram, and the face material 4 and each side of the shaft assembly ( The column member 5 and the beam member 8) move relatively in the direction along each side (longitudinal direction of the column member 5 and the beam member 8). At this time, since the gap between the face member 4 and the left and right column members 5 is narrow, when the face member 4 tries to rotate, the strut effect is exerted by contacting the column member 5, and the left and right direction (the length of the friction damper 100 is increased). Deformation in the direction perpendicular to the hole 21 is restricted. On the other hand, since the gap between the face material 4 and the upper and lower beam members 8 is wide, deformation in the vertical direction (the direction in which the long hole 21 of the friction damper 100 extends) is allowed. In order to attenuate this vibration, three friction dampers 100 are attached at equal intervals between the left side and the left column 5 of the face member 4 and between the right side and the right column 5 of the face member 4. is there. As shown in FIG. 13B, the method of attaching the friction damper 100 is the same as that shown in FIG. 3, and the face material 4 corresponds to one member and the column material 5 corresponds to the other member. The receiving material 7 is a single member (two on the left and right) that extends vertically. In this wall surface body, as shown in FIG. 13A, the damping effect of the friction damper 100 is enhanced by minimizing the number of nails for fixing the face material 4 to the receiving material 7.

  Thus, the wall body to which the friction damper 100 is attached has high rigidity and high damping performance. When the first embodiment of the friction damper is applied, the plate member 2 provided integrally with the column member 5 is sandwiched between both sandwiching portions 12 of the friction member 1 provided integrally with the face member 4, and the bolt 3 is caused by vibration. The face material 4 does not come off in the out-of-plane direction even if it is loosened. Moreover, since both the clamping parts 12 of the friction material 1 are provided with the orthogonal part 13, and the direction of the pressing force by the fastener 3 and the fiber direction of the orthogonal part 13 are parallel, a high residual stress rate is maintained over the long term. it can. Further, at the factory, the face material 4 and the friction material 1 can be manufactured as a set as a vibration-damping surface material, and this can be inserted into the shaft assembly on site.

  Then, the wall shear test was done about the wall surface body which provided 1st embodiment of the friction damper 100 shown in FIG. The test method is a fixed column base, 1/30 rad. After repeatedly applying force until 1/15 rad. The apparent shear deformation angle-load relationship is shown in the graph of FIG. According to this, high rigidity was shown reflecting the property of the friction damper 100. Therefore, the wall surface body of the present invention has high rigidity and high damping performance, and is 1/30 rad. Even at large deformations exceeding 5,000, it exhibits extremely excellent performance such as no hardening or proof stress reduction.

Next, a third embodiment of the friction damper will be described. As shown in FIG.15 and FIG.16, 3rd embodiment of a friction damper is provided with the two friction materials 1a and 1b and the fastener 3a.
The friction materials 1a and 1b are made of wood and have a rectangular cross section and extend in the longitudinal direction of the pillar material 5. The friction materials 1a and 1b are parallel to the direction in which the frictional force is applied as in the other embodiments, in other words, tightening. The fiber direction is in a direction orthogonal to the pressing direction by the tool 3a. The friction materials 1a and 1b are fixed by screwing to the surface of the column material 5 on the surface material 4 side so that the surface material 4 is sandwiched from both the front and back sides. The friction materials 1a and 1b are each provided with three through holes 14a penetrating the front and back at equal intervals in accordance with the positions of the long holes 41 of the face material 4, and each of the through holes 14a has an orthogonal portion 13a. Is inserted and glued. The orthogonal part 13a in 3rd embodiment is a rod-shaped member extended in the direction where the pressing force by the fastener 3a acts like the orthogonal part 13 in 1st embodiment. The orthogonal part 13a has a fiber direction in a direction parallel to the direction of the pressing force by the fastener 3a, and a bolt hole is provided at the center in the front and back direction.
Although the long hole 41 extended in the longitudinal direction of the pillar material 5 is formed in the face material 4, the long hole 41 will be in the state hidden in both friction material 1a, 1b. Then, after a washer 33 is inserted into a fastener composed of three bolts 3a, the bolt hole of the orthogonal portion 13a and the long hole 41 of the face material 4 are passed through and screwed from the front side. The tip of the bolt 3a is fixed by a washer 33 and a nut 34 from the back side. By tightening the bolt 3a, a pressing force is generated in the front and back directions, the friction materials 1a and 1b are urged toward each other, and the friction materials 1a and 1b press the face material 4 from both sides.

Next, a fourth embodiment of the friction damper will be described. As shown in FIG.17 and FIG.18, 4th embodiment of a friction damper is provided with the two friction materials 1a and 1b and the fastener 3b. The fourth embodiment differs from the third embodiment in the configuration of the orthogonal portion 15a. In the fourth embodiment, the orthogonal portion 15a is a plate-like member located on both sides of the fastener 3b as in the second embodiment. .
The friction materials 1a and 1b are made of wood and have a rectangular cross section and extend in the longitudinal direction of the pillar material 5. The friction materials 1a and 1b are parallel to the direction in which the frictional force is applied as in the other embodiments, in other words, tightening. The fiber direction is in a direction orthogonal to the pressing direction by the tool 3b. The friction materials 1a and 1b include an orthogonal portion 15a. The orthogonal part 15a has a fiber direction parallel to the direction of the pressing force by the fastener 3b. In accordance with the position of the long hole 41 of the face material 4, the friction materials 1a and 1b on both sides of the fastener 3b are notched in the longitudinal direction of the pillar material 5, and the orthogonal portion 15a is fitted into the notch. Are glued together.
Further, the face material 4 is formed with a long hole 41 extending in the longitudinal direction of the pillar material 5 as in the third embodiment. And the fastening tool which consists of the two volt | bolts 3b penetrates both the friction materials 1a and 1b between the two orthogonal parts 15a and 15a and the long hole 41 of the face material 4, and is screwed in from the front side. The tip of the bolt 3a is fixed by a washer 33 and a nut 34 from the back side. When the bolt 3b is tightened, a pressing force is generated in the front and back directions, the friction materials 1a and 1b are urged toward each other, and the friction materials 1a and 1b press the face material 4 from both sides.

  In the third embodiment and the fourth embodiment of the friction damper configured as described above, when the face material 4 and the column material 5 are relatively moved by vibration, the wooden friction materials 1a and 1b and the wooden face material 4 are used. The vibration can be attenuated by generating a frictional force between the two. Further, since the bolt 3a can move in the long hole 41 of the face material 4, it can cope with a large deformation. Both friction materials 1a and 1b are provided with orthogonal portions 13a and 15a, and the direction in which the pressing force applied by the fasteners 3a and 3b is applied is parallel to the fiber direction of the orthogonal portions 13a and 15a. High stress residual rate can be maintained. At the same time, the direction in which the frictional force generated perpendicular to the pressing force by the fasteners 3a, 3b is parallel to the fiber direction of both friction materials 1a, 1b, so that the shear stress generated in the orthogonal portions 13a, 15a is reduced. Can prevent shear fracture.

  Then, the result of having performed the shear test by the repeated vibration about the friction damper comprised in this way is shown. Here, the fourth embodiment was tested and the displacement-load relationship is shown in the graph of FIG. According to this, a rectangular stable loop having a high rigidity specific to the friction damper and almost no secondary rigidity was obtained.

  FIG. 20 shows a wall surface provided with a fourth embodiment of the friction damper. It is the structure similar to the wall surface body which provided 1st embodiment of the friction damper shown in FIG. 13, It is equipped with the face material 4, the shaft assembly (column material 5 and the beam material 8), and the friction damper 100, Three friction dampers 100 are attached at equal intervals between the left side of the face member 4 and the left pillar member 5 and between the right side of the face member 4 and the right pillar member 5. The method of attaching the friction damper 100 is the same as in the case shown in FIG. 13, and the face material 4 corresponds to one member, and the shaft assembly (column material 5) corresponds to the other member. However, the friction materials 1a and 1b are members extending from the upper end to the lower end of the face material 4, and the friction materials 1a and 1b are similarly provided on the upper and lower sides of the face material 4.

  Thus, the wall body to which the friction damper 100 is attached has high rigidity and high damping performance. When the fourth embodiment of the friction damper is applied, the face material 4 is sandwiched between both friction materials 1a and 1b provided integrally with the pillar material 5, so that the face material 4 remains even if the bolt 3a is loosened due to vibration. Does not come out outward. Moreover, since both the clamping parts 12 of the friction materials 1a and 1b are provided with the orthogonal part 15a, the direction of the pressing force applied by the fastener 3 and the fiber direction of the orthogonal part 15a are parallel to each other. Can be maintained. Further, in the factory, the face material 4 and the friction materials 1a and 1b can be manufactured as a set as a vibration-damping surface material, and this can be inserted and installed in the shaft assembly on site.

In the third embodiment and the fourth embodiment of the friction damper, the face material 4 including the long hole 41 is used, but by applying the face material 4 of various aspects, the stress relaxation behavior by the face material 4 is suppressed. Can do. For example, as shown in FIG. 21, the face material 4 may include a steel plate reinforcing member 91 at a location where the face material 4 is clamped by the fasteners 3 a and 3 b. In this case, a part of the face material 4 is cut out and the reinforcing member 91 is fitted and bonded, and the fasteners 3 a and 3 b are inserted into the long holes 91 a provided in the reinforcing member 91. Further, as shown in FIGS. 22 and 23, the face material 4 may be provided with reinforcing members 92 and 93 made of plywood bonded at right angles to each other at locations where they are pressed by the fasteners 3a and 3b. Good. In this case, the reinforcing members 92 and 93 are arranged on the face material 4 so that the side surfaces of the plywood are on the surface side of the face material 4, in other words, the surface direction and the pressing direction by the fasteners 3a and 3b are parallel. It is inserted. The reinforcing members 92 and 93 are provided with long holes 92a and 93a, and the fasteners 3a and 3b are inserted into the long holes 92a and 93a. In addition, the face material 4 in FIG. 22 is cut out in a U-shape at locations to be clamped by the fasteners 3a and 3b, and a reinforcing member 92 is fitted and bonded to the cut-out portion. The face material 4 in FIG. 23 is formed by hollowing out portions to be clamped by the fasteners 3a and 3b and fitting a reinforcing member 93 therein to adhere. Further, a reinforcing member 94 having an orthogonal portion 94b may be provided as in the face material 4 shown in FIG. The orthogonal part 94b is a rod-shaped member having a fiber direction in a direction parallel to the pressing force. The reinforcing member 94 is provided with a plurality of through holes in the front and back directions at intervals where the reinforcing members 94 are pressed by the fasteners 3a and 3b, and the orthogonal portions 94b are fitted into the through holes, and the plurality of orthogonal holes A long hole 94a is provided along the portion 94b. An L-shaped notch is provided on the back side of the reinforcing member 94, and the face material 4 is bonded to the notch so that the back side of the face 4 and the back side of the reinforcing member 94 are flush with each other. It is as. And you may provide the reinforcing member 95 which has the orthogonal part 95b like the face material 4 shown in FIG. The orthogonal part 95b is a plate-like member having a fiber direction parallel to the pressing force. The reinforcing member 95 is provided with a long hole 95a at a portion to be clamped by the fasteners 3a and 3b, and has orthogonal portions 95b and 95b on both sides of the long hole 95a. A groove extending in the longitudinal direction of the column member 5 is provided in one of the two orthogonal portions 95b, and the face member 4 is inserted and bonded to this groove.
Since the face material 4 provided with such reinforcing members 91 to 95 includes a member that does not easily relax along the outer peripheries of the long holes 91a to 95a, the stress relaxation behavior by the face material 4 can be suppressed.

The friction damper of the present invention can also have a different configuration. 26 and 27 show a fifth embodiment of the friction damper. In the first embodiment to the fourth embodiment, one member is a wooden face member 4 and the other member is a wooden pillar member 5, but in the fifth embodiment, the one member 4a and the other member 5a are either Also, it is a wooden face material. Specifically, it is a thick type assembled panel in which a plurality of plate materials are laminated and bonded orthogonally to each other, and one member 4a and the other member 5a have the same plate thickness. The two face materials 4a and 5a are joined by abutting the end faces, and the face materials 4a and 5a move relative to each other in the longitudinal direction of the joining surface.
The fifth embodiment includes a plate member 2, a fastening tool 3c, and a fixing tool 30.
On the other hand, the member (face material) 4a has three insertion holes 43 penetrating the front and back at equal intervals according to the position near the other member (face material) 5a, in other words, the position of the long hole 21 of the plate material 2. is there. The orthogonal portion 44 is inserted and bonded to each insertion hole 43. In the fifth embodiment, the orthogonal portion 44 is a rod-like member extending in the direction in which the pressing force is applied by the fastener 3c. However, like the orthogonal portions 15 and 15a of the second embodiment and the fourth embodiment, It may be a plate-like member located on both sides of 3c. On one end face of the member 4a facing the other member 5a, a groove portion 41 is formed in the longitudinal direction, and both sides (front side and back side) of the groove portion 41 are sandwiching portions. Both the front and back clamping parts 42 include orthogonal parts 44 that are separated by the grooves 41. The orthogonal portion 44 has a fiber direction in a direction orthogonal to the direction in which the groove portion 41 extends (direction in which the frictional force is applied), in other words, a direction parallel to the direction of the pressing force by the fastener 3c. Has bolt holes in the front and back direction.
The other member 5a is provided with three fixing holes 53 that penetrate the front and back at equal intervals at a position near the one member 4a, in other words, at the position of the fixing hole 23 of the plate member 2. A groove portion 51 is formed in the longitudinal direction of the end surface of the other member 5a facing the one member 4a, and both sides (front side and back side) of the groove portion 51 are sandwiching portions 52. The front and back holding parts 52 each have a fixing hole 53 divided by the groove 51.
The one member 4a and the other member 5a face each other with the groove portions 41 and 51 facing each other, and the plate member 2 extends to the groove portions 41 and 51 so as to straddle the groove portion 41 of the one member 4a and the groove portion 51 of the other member 5a. Has been inserted.
The plate member 2 is sandwiched between both sandwiching portions 42 and 52 of the one member 4a and the other member 5a and is hidden by the one member 4a and the other member 5a. The plate member 2 is made of steel, and a long hole 21 extending in the longitudinal direction of the joining surface of the one member 4a and the other member 5a is formed on the one member 4a side, and the other member 5a is fixed on the other member 5a side. A fixing hole 23 is formed in accordance with the hole 53.
A fastening tool 3c composed of three bolts is inserted through the bolt hole of the orthogonal portion 44 of the one member 4a and the long hole 21 of the plate member 2, and a washer 33 is inserted into the tip of the bolt 3, Further, a nut 34 is screwed and tightened. A fixing tool 30 such as a drift pin is fixed through the fixing hole 53 of the other member 5 a and the fixing hole 23 of the plate member 2. When the bolt 3 is tightened, a pressing force is generated in the front and back direction, and the both sandwiching portions 42 of the one member 4a are urged toward each other, and the both sandwiching portions 42 press the plate member 2 from both sides.
As shown in FIG. 28, the fifth embodiment of the friction damper configured as described above also showed high rigidity.

FIG. 29 shows a wall body provided with a fifth embodiment of the friction damper, which includes face members 4 a and 5 a, a shaft set, and a friction damper 100. The face members 4a and 5a are joined to the other member 5a on both sides of the one member 4a. The shaft assembly is formed by left and right column members 8a, 8a and upper and lower beam members 8b, 8b having a four-round framework, and face members 4a, 5a are attached to the inner peripheral side of the shaft assembly. Specifically, the end portions of the face materials 4a and 5a are sandwiched by the receiving material 7 attached to the shaft assembly. Note that a gap is provided between the face materials 4a and 5a and the left and right column members 8a, for example, 7.5 mm or more, preferably about 20 mm. Four friction dampers 100 are attached at equal intervals to the joint between the one member 4a and the other member 5a.
Next, when a wall shear test was performed on the wall body provided with the fifth embodiment of the friction damper 100, it was possible to provide excellent damping performance as shown in the graph of FIG. 30 showing the apparent shear deformation angle-load relationship. confirmed.

In order to further stabilize the pressing force of the friction damper of the present invention, acceleration treatment and retightening are effective. Hereinafter, it demonstrates concretely along the test result using 1st embodiment of a friction damper. The accelerated treatment is a treatment that is exposed to a high temperature and high humidity environment for a long time. Wood undergoes stress relaxation by expansion and contraction when subjected to changes in temperature and humidity. Even in the friction damper, it was confirmed that the pressing force greatly decreased when the acceleration treatment was performed. Therefore, it is effective to stabilize the pressing force by subjecting the friction damper to an acceleration treatment for a long time in advance. Further, if the friction damper is fastened again, a high stress can be maintained even after stress relaxation.
FIG. 31 shows the results of a reliability test for maintaining the pressing force using the first embodiment of the friction damper. In this test, all the acceleration treatments are placed in an environment of room temperature 40 ° C. and humidity 87% for 96 hours. When the acceleration treatment was performed after the start of the test, the stress decreased rapidly. A few days after the first promotion process, retightening was performed. In the case of the friction damper without retightening, the stress gradually decreased after the acceleration treatment, but when retightening, the stress recovered immediately after retightening, and then the second acceleration. When the treatment was performed, no significant decrease was observed, and high stress was maintained.
FIG. 32 shows the reliability of maintaining the pressing force by comparing the first embodiment of the friction damper and the conventional product of the friction damper that presses in the direction perpendicular to the wood fiber by repeating the acceleration process and the retightening. It is the result of having carried out the test. In this test, all the acceleration treatments are placed in an environment of room temperature 40 ° C. and humidity 87% for 96 hours. The graphs A and B show the results of the first embodiment of the friction damper, and the graphs C and D show the results of the conventional product. In A and C, the first promotion process is performed immediately after the start of the test, and retightening is performed several days later, then the second promotion process is performed, and then the retightening process and the promotion process are performed. On the other hand, B and D are the same as the conditions of A and C except that the acceleration process is not performed immediately after the start of the test (first time). When comparing the first embodiment (A, B) and the conventional product (C, D), the pressing force is higher in the first embodiment under any condition. In addition, when the acceleration treatment was performed before retightening (A, C), the residual stress rate was about 7% higher than when the acceleration treatment was not performed (B, D). As a result, it was confirmed that the acceleration treatment before re-tightening is effective for maintaining the pressing force.

As a further embodiment of the friction damper of the present invention, there is a sixth embodiment shown in FIGS. The sixth embodiment is similar to the first embodiment, but in the sixth embodiment, a deformed L-shaped material 24 having a refracting portion 24 a is used, and the groove portion 11 of the friction material 1 is on the expected surface facing the column material 5. It is provided on the front side. Further, in the sixth embodiment, since the fastening tool 3 is inserted in the direction of finding, the working direction of the pressing force is 90 ° different from that of the first embodiment.
The friction material 1 is firmly attached to the face material 4 using a nail, a screw, or an adhesive along a portion facing the column material 5. Further, the friction material 1 is provided with three insertion holes 14 penetrating in the direction of finding at equal intervals, and orthogonal portions 13 are inserted and bonded to the respective insertion holes 14. A bolt hole is provided at the center of the orthogonal portion 13 in the direction of finding. On the front side surface of the friction material 1, a groove portion 11 extending in the expected direction of the pillar material 5 is formed, and both sides of the groove portion 11 serve as clamping portions 12. Both the clamping parts 12 are provided with the orthogonal part 13 divided by the groove part 11. Further, a plate material 2 a is inserted into the groove 11.
The plate member 2 a is integrated with the deformed L-shaped member 24. The deformed L-shaped member 24 is made of steel, and further includes a bent portion 24a formed on the L-shaped member, and includes a plate member 2a extending from the bent portion 24a. The deformed L-shaped member 24 has an L-shaped side 24 b fixed to the surface of the column member 5 on the face member 4 side by screwing. A refracting portion 24 a is formed at the end of the other side 24 c extending in parallel with the face material 4 from the column material 5, and the plate material 2 a extending in the expected direction from the refracting portion 24 a toward the face material 4 is the friction material 1. It is inserted into the groove 11. A long hole 21 extending in the longitudinal direction of the column member 5 is formed in the plate member 2a. And the fastener 3 consisting of the three bolts 3 is inserted in the direction of finding through the bolt hole of the orthogonal part 13 and the long hole 21 of the plate member 2a. A clamping force is generated, the two clamping parts 12 are urged toward each other, and the both clamping parts 12 press the plate material 2a from both sides.

  FIG. 35 shows a wall surface provided with a sixth embodiment of the friction damper, which includes a face member 4, a shaft assembly, and a friction damper 100. The face material 4 is a wooden and rectangular plate material, and the shaft assembly is formed by left and right column members 5 and 5 and upper and lower beam members 8 and 8 being formed by a four-round framework, and the inner peripheral side of the shaft assembly. The face material 4 is attached to the surface. In order to damp vibrations, three friction dampers 100 are attached at equal intervals between the left side of the face member 4 and the left column member 5 and between the right side of the face member 4 and the right column member 5. is there. The method of attaching the friction damper 100 is the same as in the first embodiment, but in the sixth embodiment, the fastening tool 3 is inserted in the direction of finding, so the direction in which the pressing force acts is the same as in the first embodiment. Differ by 90 °.

  In the sixth embodiment of the friction damper configured as described above, when the face member 4 and the column member 5 are relatively moved by vibration, a friction force is generated between the wooden friction member 1 and the steel plate member 2a. Thus, vibrations can be attenuated, the same effects as in the first embodiment can be obtained, and the construction of the heat insulating material can be facilitated. The wall body to which the friction damper of the sixth embodiment is applied has high rigidity and high damping performance.

The first embodiment to the fifth embodiment are true wall specification friction dampers in which columns are exposed, but the friction damper of the present invention can also be applied to large wall specifications in which columns are hidden by walls. A seventh embodiment of a friction damper having a large wall specification using the deformed L-shaped member 24 and a wall body provided with this friction damper are shown in FIGS. 36 and 37. FIG.
The seventh embodiment includes a friction material 1, a plate material 2a, and a fastener 3 and uses a deformed L-shaped material 24 as in the sixth embodiment. The friction material 1 is made of wood and has a rectangular cross section and extends in the longitudinal direction of the column material 5, and is fixed to the front surface of the face material 4 by screwing from the back side. And the groove part 11 extended in the longitudinal direction of the pillar material 5 is formed in the front side surface of the friction material 1, and the both sides of the groove part 11 become the clamping part 12. FIG. The deformed L-shaped member 24 made of steel and extending in the longitudinal direction of the column member 5 is fixed by screwing one side 24b to the column member 5. Further, the deformed L-shaped member 24 is formed with a refracting portion 24a at the end of the other side 24c extending in parallel with the face member 4 from the column member 5, and extending in the expected direction from the refracting portion 24a toward the face member 4. 2a is formed. The plate material 2 a is inserted into the groove portion 11 of the friction material 1 and is sandwiched between both the sandwiching portions 12. Further, a long hole 21 extending in the longitudinal direction of the column member 5 is formed in the plate member 2a. And in both the clamping parts 12 of the friction material 1, the through-hole 14 penetrated in a finding direction is formed according to the position of the long hole 21 of the board | plate material 2a, and the orthogonal | vertical part 13 is formed in each of the through-holes 14. Inserted and glued. A bolt hole is provided at the center of the orthogonal portion 13 in the direction of finding. The fastening tool composed of the bolt 3 passes through the bolt hole of both the clamping parts 12 and the long hole 21 of the plate member 2a and is inserted in the finding direction. Is generated, and both sandwiching portions 12 are urged toward each other, and both sandwiching portions 12 press the plate material 2a from both sides. The face material 4 is fixed by bringing the front side surface into contact with the back side surface of the pillar material 5 and nailing the outer peripheral portion from the back side. The seventh embodiment of the friction damper thus configured also has high rigidity, and the wall surface provided with the friction damper 100 has high rigidity and high damping performance. Thus, the friction damper of the present invention can be applied to both a true wall type wall body and a large wall type wall body.

  The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, the orthogonal member may have any shape such as a rectangle or a circle. Further, in the first embodiment and the second embodiment, a T-shaped material may be used instead of the L-shaped material, and in the sixth and seventh embodiments, other shapes are used instead of the deformed L-shaped material. You may comprise a board | plate material using the thing. The shape of each of the other members may be any shape as long as it satisfies the above-mentioned requirements. In addition to screws and nails, an adhesive or the like is used for joining the members. Also good. Further, the number of insertion holes, fasteners (bolts) provided in the friction material, and the number of friction dampers attached to the wall surface body can be changed as necessary, and are not particularly limited.

1, 1a, 1b Friction material 2 Plate material 3, 3a, 3b, 3c Fastener (bolt)
4, 4a One side member (face material)
5 Other member (column material)
5a The other member (face material)
11, 41, 51 Groove part 12, 42, 52 Clamping part 13, 13a, 15, 15a, 94b, 95b, 44 Orthogonal part 21, 41, 91a-95a Long hole 100 Friction damper

Claims (11)

Extending in a predetermined direction, facing each other, and relatively moving in a predetermined direction by vibration, interposed between one member and the other member to attenuate the vibration,
Friction material, plate material, and fasteners,
The friction material is made of wood, is integrally provided with one member, and is provided along a facing portion with respect to the other member. A groove portion extending in a predetermined direction is formed, and both sides of the groove portion are sandwiching portions. The part has a wooden orthogonal part,
The plate material is made of metal, is provided integrally with the other member, along the facing portion with respect to the one member, has a long hole extending in a predetermined direction, is inserted into the groove portion of the friction material, and is sandwiched between both sandwiching portions. Sandwiched between
The fastening tool is provided along the facing part of the one member and the other member, passes through both the sandwiched portions of the friction material and the long hole of the plate material, and tightens the both sandwiched portions in a direction approaching each other, Both clamping parts press the plate from both sides,
The direction of the pressing force by the fastener is parallel to the fiber direction of the orthogonal part,
A friction damper, characterized in that the direction of the frictional force generated perpendicular to the pressing force by the fastener is parallel to the fiber direction of the friction material. It extends between a predetermined direction and is opposed, and is relatively moved in a predetermined direction by vibration, and is interposed between one wooden member and the other member to attenuate the vibration,
Two friction materials, a fastener, and a long hole extending in a predetermined direction formed in one member,
Both friction materials are made of wood, have an orthogonal part, are provided with the other member integrally with the opposing part to one member, and sandwich one member,
A clamping tool is provided along the facing part of the one member and the other member, passes through the long holes of the friction material and the one member, and tightens the friction materials in a direction to bring them closer to each other. The material presses one member from both sides,
The direction of the pressing force by the fastener is parallel to the fiber direction of the orthogonal part,
A friction damper, characterized in that the direction of the frictional force generated perpendicular to the pressing force by the fastener is parallel to the fiber direction of the friction material. It extends in a predetermined direction, opposes, and relatively moves in a predetermined direction by vibration, is interposed between one member and the other member to attenuate the vibration,
A plate, a fixture, and a fastener;
The one member and the other member are made of wood and each has a groove portion extending in a predetermined direction, and both sides of the groove portion are sandwiched portions, and are arranged with the openings of the groove portions facing each other.
On the other hand, both clamping parts of the member are equipped with wooden orthogonal parts,
Both clamping parts of the other member are provided with fixing holes,
The plate is made of metal and has a long hole extending in a predetermined direction and a fixed hole. The long hole is on one member side and the fixed hole is on the other member side. Placed between each sandwiching part,
A fixing tool is provided on the other member, and is fixed through the fixing hole of the other member and the fixing hole of the plate member;
A clamping tool is provided on one member, passes through the orthogonal part of the one member and the long hole of the plate material, and clamps the clamping portions in a direction approaching each other, and both clamping portions press the plate material from both sides. And
A friction damper, wherein a direction in which a pressing force is applied by a fastener and a fiber direction in an orthogonal portion are parallel to each other. 4. The friction according to claim 1, wherein the orthogonal portion is a rod-like member extending in a direction in which a pressing force is applied by the fastener, and the fastener penetrates in the axial direction of the rod-like member. damper.
  The friction damper according to claim 1, 2, or 3, wherein the orthogonal part is a plate-like member located on both sides of the fastener.   6. The friction damper according to claim 2, wherein the member includes a metal reinforcing member, and the reinforcing member is provided with a long hole.   On the other hand, the member is provided with a wooden reinforcing member, the reinforcing member is made of a plywood laminated with thin plates crossing the fiber direction, and the reinforcing member has a long hole, and the surface direction of the plywood is a pressing force by a fastener. 6. The friction damper according to claim 2, wherein the friction damper is parallel to a working direction of the friction damper.   On the other hand, the member includes a wooden reinforcing member, the reinforcing member has an orthogonal portion, the orthogonal portion is provided along the long hole, and the fiber direction of the orthogonal portion is parallel to the tightening direction of the fastener. The friction damper according to claim 2, 4 or 5.   The friction damper according to claim 1, 2, 4, 5, 6, 7 or 8, wherein the friction material is subjected to an acceleration treatment. One member made of a face material, the other member made of a rectangular pillar, and the friction damper according to claim 1, 2, 4, 5, 6, 7 or 8,
A wall surface body, wherein one member is provided so as to cover substantially the entire inner peripheral side of the other member, and a friction damper is provided between the one member and the other member. A frame, one member made of a face material and the other member, and the friction damper according to claim 3, 4 or 5,
A wall surface body characterized in that a friction damper is provided between one member and the other member, and the one member and the other member are alternately connected in a predetermined direction to cover substantially the entire inner peripheral side of the frame body.

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