JP2015001134A - Slit material - Google Patents

Abstract

When a slit is to be installed in a column shape or the like, if there is a protruding portion on the side of the slit, the slit cannot be installed in a cross section of the column shape or the like. As a result, it is necessary to install the slit at a position away from the columnar shape. Even if there is a protruding part on the side of the slit, such a situation is prevented. A long slit material provided along a joint portion between members, formed into an elliptical cross section having arched portions on both sides of the main body, and protrudes inward from the main body. In the slit material integrally provided with the ridge and the ridge protruding in the gap of the joint surface between the members, the arch portion on one member side of the arch portion on both sides of the main body portion with respect to the slit core is the other This was made asymmetric with respect to both member sides. [Selection] Figure 1

Description

  The present invention relates to a joint between a non-structural wall of a building and a structural framework such as a column or a beam, or a non-structural wall and a non-structural wall or a structural framework and a structural framework, which are used when building a seismic structure of a building. The present invention relates to a slit material provided at the joint.

  If a non-structural wall such as a sleeve wall, waist wall, drooping wall, or general wall of a building is joined to a structural frame such as a column or a beam with a rigid connection that directly joins them, vibration due to an earthquake or the like is added to the building. 7, for example, the waist wall that is the non-structural wall 1 affects the brittle fracture of the column that is the structural frame 2 and often causes the collapse of the building.

  Therefore, as a method for preventing the presence of the non-structural wall 1 from adversely affecting the structural framework such as a pillar, it is recommended by the structural regulations of the building of the Nippon Building Center. There is a joining type in which a complete edge-cutting slit is provided between a non-structural wall and a structural frame, and it is widely used in actual buildings.

The applicant first described the following patent document as a slit material for a non-structural wall that can reduce the number of parts, has good workability, and has sufficient waterproofness, fire resistance, durability, and impact resistance when placing concrete. Acquired the right.
Japanese Patent No. 3205807

  As shown in FIG. 4, it is assumed that the slit material 4 is interposed between a slit 3 formed between the non-structural wall 1 and the structural framework 2, and the slit material 4 is formed by extruding the body portion 5 with a light metal such as aluminum. It is formed by a long object according to the above, and is formed into a hollow cross-sectional ellipse having arched portions on both sides.

  Then, it protrudes inward from a structural frame 2 such as a beam or a column and a non-structural wall 1 such as a waist wall from both ends of the arched portion of the main body 5 and is fixed to the structural frame 2 and the non-structural wall 1 such as a waist wall. A pair of first ridges 6 are integrally provided. The first protrusion 6 is further bent at a right angle to form a bent portion.

  The pair of first ridges 6 are formed in a long shape so as to protrude toward the non-structural wall 1 and serve as a fixing member to the separator 18 described later.

  Further, a pair of second ridges 7 are integrally provided as an engagement portion with the joint rod 17 from both ends of the arch-shaped portion of the main body portion 5 having an elliptical cross section.

  In order to attach the slit material 4 to the slit 3 formed at the joint between the non-structure wall 1 and the structural frame 2, the slit material 4 is cut to a required length at the factory. As shown in FIG. 5, at the construction site, a formwork 14 for placing concrete that constitutes walls and pillars is assembled, and the main body 5 is set between the formwork 14. At this time, joint rods 17 are placed inside the second protrusions 7 at both ends of the main body 5, and the separators 18 are passed through the first protrusions 6 protruding inward of the non-structural wall 1. Thus, the slit material 4 is fixed to the mold 14.

  Thereafter, concrete 13 is placed in the mold 14. The impact at the time of placing the concrete can be absorbed by the arch-shaped part of the cross section of the main body part 5 by making the slit material 4 made of aluminum having sufficient strength to resist the concrete side pressure. The slit material 4 is not deformed or moved by the concrete side pressure combined with being fixed to the mold 14 and is not destroyed.

  After the concrete 13 is hardened, as shown in FIG. 6, if the formwork 14 and the joint rod 17 are removed, the slit material 4 is disposed vertically to ensure the perpendicularity of the joint. After the arrangement, the slit material 4 functions as a buffer member. With respect to the tensile deformation in the lateral direction at the time of the earthquake, the connecting portion 10 extends in the lateral direction and flexibly deforms. For the opposite compressive deformation, the connecting portion 10 compresses and deforms flexibly, so that the slit material 4 absorbs the forced deformation of the earthquake, and from the non-structural wall 1 to the structural frame 2 or in the reverse direction. It can prevent excessive force from being transmitted.

  As for the fire resistance, for example, if aluminum is used as the material, the fire resistance can be exhibited without inserting a fireproof material as in the prior art. The same applies to extruded metal other than aluminum.

  By the way, since this slit material is provided with arch-shaped parts that bulge outward on the left and right sides, for example, at the junction between a non-structural wall and a structural framework, this slit material is used when the pillar is a structural framework. When installed, an arch-shaped part enters the column cross section and the column cross section is lost, so it must be installed at a distance from the column.

  However, there is a demand from design designers to provide a slit material at the pillar for design reasons.

  The object of the present invention is to consider the situation of the conventional example, in a long slit material provided along the joint portion between the members, when the slit is to be installed in a column shape or the like, Providing a slit material that can prevent a projecting portion on a side portion from being installed in a cross section of a columnar shape or the like even if the projecting portion is present on a side portion of the slit. There is.

  In order to achieve the above object, the present invention according to claim 1 is a long slit material provided along a joint portion between members, and is formed in an elliptical cross section having arched portions on both sides of the main body portion, In a slit material integrally provided with a ridge projecting inward from a main body part and a ridge projecting in a gap on the joint surface between the members, the arched parts on both sides of the main body part with respect to the slit core The gist is that the arch-shaped part on one member side is brought close to the other member side to make it asymmetric with respect to both member sides.

  According to the first aspect of the present invention, the slit member is moved to one side by moving the arched portion on one member side toward the other member side to be asymmetric with respect to both member sides. Even if it approaches the side of the member, the slit material may not enter the cross section of the member.

  According to the second aspect of the present invention, the joint between the members may be any of a joint between the non-structural wall and the structural frame, a joint between the non-structural wall and the non-structural wall, and a joint between the structural frame and the structural framework. The gist of this is that.

  According to the second aspect of the present invention, the joint portion between the members to which the present invention is applied includes the joint portion between the non-structural wall and the structural frame, the joint portion between the non-structural wall and the non-structural wall, and the structural framework. Any of the joints with the structural frame may be used, but in the case of the joint between the non-structural wall and the column that is the structural frame, the arched part on the column side is moved to the wall side with respect to the slit core, and the structural frame side By making asymmetric with the non-structural wall, the slit material does not enter the column cross section even when the slit material is brought close to the column.

  The gist of the present invention described in claim 3 is that the main body portion is provided with an attachment that is detachable toward a gap of a joint surface with each member.

  According to this invention of Claim 3, the slit which can respond to wall thickness and various joint rods can be formed with an attachment.

  The gist of the present invention described in claim 4 is that the connecting material is bolted between the protrusions protruding inward of one member, and the separator is passed through the hole formed in the connecting material. .

  According to the fourth aspect of the present invention, the slit member is reinforced by the adjacent separator, but at that time, the slit member is fixed via the connecting member, so that it can be fixed even at a position away from the separator.

  The gist of the present invention described in claim 5 is that a notch for breaking the concrete at the time of a large earthquake is formed on the protrusions protruding inward of one member.

  According to the present invention as set forth in claim 5, it is possible to control a range in which members are broken to a minimum during a large earthquake by a notch for breaking concrete.

  As described above, the slit material of the present invention is a long slit material provided along a joint portion between members. If there is a protruding portion, it cannot be installed in a cross section of a column shape or the like, but even if there is a protruding portion on the side of the slit, such a case can be prevented.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing a first embodiment of a slit material for a non-structural wall according to the present invention. The same components as those in FIG. 4 showing the conventional example are given the same reference numerals.

  In the present embodiment, the slit member 4 is inserted into a slit formed between the non-structural wall 1 and the structural framework 2, and the slit material 4 is formed by extruding the body portion 5 with a light metal such as aluminum. And is formed in a hollow cross-sectional ellipse having arched portions 8 and 9 on both sides.

  Then, the structural frame 2 and the non-structural wall such as the waist wall project from the both ends of the arched portions 8 and 9 of the main body 5 to the inside of the structural frame 2 such as a beam and a column and the non-structural wall 1 such as the waist wall. A pair of first protrusions 6 to be fixed to each other are integrally provided. The first protrusion 6 is further bent at a right angle to form a bent portion.

  The pair of first ridges 6 are formed in a long shape so as to protrude toward the non-structural wall 1 to increase the overall rigidity, and also serve as anchor portions to the concrete. And

  Further, a pair of second ridges 7 serving as joint portions with the joint rod 17 in a direction substantially perpendicular to the first ridge 6 from both ends of the arched portions 8 and 9 of the main body 5 having an elliptical cross section. Were provided in one piece.

  In the present invention, of the arch-shaped portions 8 and 9 on both sides of the main body portion 5 with respect to the slit core of the slit member 4, the arch-shaped portion 8 on the column side, that is, the structural framework 2 side is the wall side. Near the arched portion 9 on the structural wall 1 side, the non-structural wall 1 side and the structural framework 2 side were made asymmetric.

  The arch-shaped portion 8 on the structural frame 2 side is made shorter than the arch-shaped portion 9 on the non-structural wall 1 side, whereby the arch-shaped portion 8 can be brought closer to the non-structural wall 1 side.

  The main body 5 is provided with a detachable attachment 12 as a joint with the joint rod 17.

  As described above, the cross section of the main body 5 has a hollow shape that is closed by the pair of left and right arch-shaped portions 8 and 9 that swell outward, and the pair of upper and lower connecting portions 10 that connect the arch-shaped portions 8 and 9 together. The pair of upper and lower connecting portions 10 are U-shaped with their center portions protruding inward of the main body portion 5.

  The pair of second ridges 7 serving as joint portions with the joint rods 17 should be the dimension adjusting legs 11 protruding from the vicinity of the ends of the arch-like parts 8 and 9, and the attachment 12 is the dimension adjusting leg. 11 is attached using the protrusion on the inner surface.

  The dimension adjusting leg 11 is located between the mold 14 for forming the non-structural wall 1 and the main body 5, and is an element that determines the distance between the facing molds 14, that is, the thickness of the non-structural wall 1. It is a member.

  The attachment 12 is integrally formed with a fitting arm that engages with the projecting piece of the dimension adjusting leg 11.

  When the required wall thickness is relatively thin, a joint rod 17 for forming a joint at the time of completion of concrete placement is attached to the tip of the dimension adjusting leg 11 to determine the distance from the formwork 14 and face each other. Assembling is performed so that the distance between the molds 14 becomes equal to a predetermined wall thickness.

  The dimension adjusting leg portion 11 has a pair of protruding pieces 7a having the same height facing each other at a predetermined interval, and a protrusion 7b is formed on at least one inner surface of the protruding piece 7a. When not used, it acts as a contact surface for positioning the joint rod 17.

  The non-structural wall 1 side of the pair of first protrusions 6 projecting inward from the arch-like portions 8 and 9 to the inside of the non-structural wall 1 and the structural framework 2 and fixed to the non-structural wall 1 and the structural framework 2 is elongated. A hole 22 through which the bolt 19 can be formed is provided in the central portion. The holes 22 are provided at appropriate intervals in the longitudinal direction of the first protrusion 6 (the same direction as the longitudinal direction of the slit material 4).

  The end of the U-shaped connecting material 20 is fitted between the parallel first ridges 6 on the non-structural wall 1 side, and the bolts 19 and the nuts are connected.

  The U-shaped connecting member 20 that is disposed sideways is provided with a plurality of holes 21 for engaging the separators 18 that determine the distance between the facing molds 14, and the separators 18 pass through the holes 21. The slit material 4 is fixed to the separator 18 via the connecting material 14.

  When the connecting material 20 is not used, the separator 18 is directly passed through and fixed to the hole 22 of the first protrusion 6.

  Of the pair of second ridges 7 serving as joint portions with the joint rods 17, a notch 23 for fracture is formed on the non-structural wall 1 side in the event of a large earthquake.

  In this way, it is possible to control a range in which a part of the unstructured wall is broken to a minimum by a notch 23 for breaking.

  In the above embodiment, the slit material used at the joint between the non-structural wall of the building and the structural frame such as a column or a beam used for building the earthquake-resistant structure of the building has been described, but the present invention is not limited to this. The present invention can also be applied as a slit material provided at a joint between a non-structural wall and a non-structural wall or a structural framework and a structural framework.

It is a cross-sectional top view which shows 1st Embodiment of the slit material of this invention. It is a cross-sectional top view which shows 2nd Embodiment of the slit material of this invention. It is a perspective view which shows the construction state in 2nd Embodiment of the slit material of this invention. It is a cross-sectional top view which shows a prior art example. It is a cross-sectional top view which shows the construction state of a prior art example. It is a cross-sectional top view which shows the demolding state at the time of construction of a prior art example. It is a front view which shows the collapsed state of a non-structural wall and a structural frame.

DESCRIPTION OF SYMBOLS 1 ... Non-structural wall 2 ... Structural frame 3 ... Slit 4 ... Slit material 5 ... Main-body part 6 ... 1st protrusion 7 ... 2nd protrusion 7a ... Projection piece 7b ... Projection 8, 9 ... Arch-shaped part 10 ... Connecting part 11 ... Dimension adjusting leg 12 ... Attachment 13 ... Concrete 14 ... Formwork 15 ... Projection 17 ... Joint stick 18 ... Separator 19 ... Bolt 20 ... Connecting material 21 ... Hole 22 ... Hole 23 ... Notch

  The present invention relates to a joint between a non-structural wall of a building and a structural framework such as a column or a beam, or a non-structural wall and a non-structural wall or a structural framework and a structural framework, which are used when building a seismic structure of a building. The present invention relates to a slit material provided at the joint.

  If a non-structural wall such as a sleeve wall, waist wall, drooping wall, or general wall of a building is joined to a structural frame such as a column or a beam with a rigid connection that directly joins them, vibration due to an earthquake or the like is added to the building. 7, for example, the waist wall that is the non-structural wall 1 affects the brittle fracture of the column that is the structural frame 2 and often causes the collapse of the building.

  Therefore, as a method for preventing the presence of the non-structural wall 1 from adversely affecting the structural framework such as a pillar, it is recommended by the structural regulations of the building of the Nippon Building Center. There is a joining type in which a complete edge-cutting slit is provided between a non-structural wall and a structural frame, and it is widely used in actual buildings.

The applicant first described the following patent document as a slit material for a non-structural wall that can reduce the number of parts, has good workability, and has sufficient waterproofness, fire resistance, durability, and impact resistance when placing concrete. Acquired the right.
Japanese Patent No. 3205807

  As shown in FIG. 4, it is assumed that the slit material 4 is interposed between a slit 3 formed between the non-structural wall 1 and the structural framework 2, and the slit material 4 is formed by extruding the body portion 5 with a light metal such as aluminum. It is formed by a long object according to the above, and is formed into a hollow cross-sectional ellipse having arched portions on both sides.

  Then, it protrudes inward from a structural frame 2 such as a beam or a column and a non-structural wall 1 such as a waist wall from both ends of the arched portion of the main body 5 and is fixed to the structural frame 2 and the non-structural wall 1 such as a waist wall. A pair of first ridges 6 are integrally provided. The first protrusion 6 is further bent at a right angle to form a bent portion.

  The pair of first ridges 6 are formed in a long shape so as to protrude toward the non-structural wall 1 and serve as a fixing member to the separator 18 described later.

  Further, a pair of second ridges 7 are integrally provided as an engagement portion with the joint rod 17 from both ends of the arch-shaped portion of the main body portion 5 having an elliptical cross section.

  In order to attach the slit material 4 to the slit 3 formed at the joint between the non-structure wall 1 and the structural frame 2, the slit material 4 is cut to a required length at the factory. As shown in FIG. 5, at the construction site, a formwork 14 for placing concrete that constitutes walls and pillars is assembled, and the main body 5 is set between the formwork 14. At this time, joint rods 17 are placed inside the second protrusions 7 at both ends of the main body 5, and the separators 18 are passed through the first protrusions 6 protruding inward of the non-structural wall 1. Thus, the slit material 4 is fixed to the mold 14.

  Thereafter, concrete 13 is placed in the mold 14. The impact at the time of placing the concrete can be absorbed by the arch-shaped part of the cross section of the main body part 5 by making the slit material 4 made of aluminum having sufficient strength to resist the concrete side pressure. The slit material 4 is not deformed or moved by the concrete side pressure combined with being fixed to the mold 14 and is not destroyed.

  After the concrete 13 is hardened, as shown in FIG. 6, if the formwork 14 and the joint rod 17 are removed, the slit material 4 is disposed vertically to ensure the perpendicularity of the joint. After the arrangement, the slit material 4 functions as a buffer member. With respect to the tensile deformation in the lateral direction at the time of the earthquake, the connecting portion 10 extends in the lateral direction and flexibly deforms. For the opposite compressive deformation, the connecting portion 10 compresses and deforms flexibly, so that the slit material 4 absorbs the forced deformation of the earthquake, and from the non-structural wall 1 to the structural frame 2 or in the reverse direction. It can prevent excessive force from being transmitted.

  As for the fire resistance, for example, if aluminum is used as the material, the fire resistance can be exhibited without inserting a fireproof material as in the prior art. The same applies to extruded metal other than aluminum.

  By the way, since this slit material is provided with arch-shaped parts that bulge outward on the left and right sides, for example, at the junction between a non-structural wall and a structural framework, this slit material is used when the pillar is a structural framework. When installed, an arch-shaped part enters the column cross section and the column cross section is lost, so it must be installed at a distance from the column.

  However, there is a demand from design designers to provide a slit material at the pillar for design reasons.

  The object of the present invention is to consider the situation of the conventional example, in a long slit material provided along the joint portion between the members, when the slit is to be installed in a column shape or the like, Providing a slit material that can prevent a projecting portion on a side portion from being installed in a cross section of a columnar shape or the like even if the projecting portion is present on a side portion of the slit. There is.

In order to achieve the above object, the present invention according to claim 1 is a long slit material provided along a joint portion between members, formed in a cross-sectional ring shape having arched portions on both sides of the main body portion, and a main body. In a slit material integrally provided with a ridge projecting inward from the part to the inside of the member and a ridge projecting into the gap of the joint surface between the members, the arched parts on both sides of the main body part with respect to the slit core The gist is that the arch-shaped portion on one member side is brought close to the other member side to be asymmetric with respect to both member sides.

  According to the first aspect of the present invention, the slit member is moved to one side by moving the arched portion on one member side toward the other member side to be asymmetric with respect to both member sides. Even if it approaches the side of the member, the slit material may not enter the cross section of the member.

  According to the second aspect of the present invention, the joint between the members may be any of a joint between the non-structural wall and the structural frame, a joint between the non-structural wall and the non-structural wall, and a joint between the structural frame and the structural framework. The gist of this is that.

  According to the second aspect of the present invention, the joint portion between the members to which the present invention is applied includes the joint portion between the non-structural wall and the structural frame, the joint portion between the non-structural wall and the non-structural wall, and the structural framework. Any of the joints with the structural frame may be used, but in the case of the joint between the non-structural wall and the column that is the structural frame, the arched part on the column side is moved to the wall side with respect to the slit core, and the structural frame side By making asymmetric with the non-structural wall, the slit material does not enter the column cross section even when the slit material is brought close to the column.

  The gist of the present invention described in claim 3 is that the main body portion is provided with an attachment that is detachable toward a gap of a joint surface with each member.

  According to this invention of Claim 3, the slit which can respond to wall thickness and various joint rods can be formed with an attachment.

  The gist of the present invention described in claim 4 is that the connecting material is bolted between the protrusions protruding inward of one member, and the separator is passed through the hole formed in the connecting material. .

  According to the fourth aspect of the present invention, the slit member is reinforced by the adjacent separator, but at that time, the slit member is fixed via the connecting member, so that it can be fixed even at a position away from the separator.

  The gist of the present invention described in claim 5 is that a notch for breaking the concrete at the time of a large earthquake is formed on the protrusions protruding inward of one member.

  According to the present invention as set forth in claim 5, it is possible to control a range in which members are broken to a minimum during a large earthquake by a notch for breaking concrete.

  As described above, the slit material of the present invention is a long slit material provided along a joint portion between members. If there is a protruding portion, it cannot be installed in a cross section of a column shape or the like, but even if there is a protruding portion on the side of the slit, such a case can be prevented.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing a first embodiment of a slit material for a non-structural wall according to the present invention. The same components as those in FIG. 4 showing the conventional example are given the same reference numerals.

In the present embodiment, the slit member 4 is inserted into a slit formed between the non-structural wall 1 and the structural framework 2, and the slit material 4 is formed by extruding the body portion 5 with a light metal such as aluminum. And is formed in a hollow cross-sectional ring shape (elliptical deformation) having arched portions 8 and 9 on both sides.

  Then, the structural frame 2 and the non-structural wall such as the waist wall project from the both ends of the arched portions 8 and 9 of the main body 5 to the inside of the structural frame 2 such as a beam and a column and the non-structural wall 1 such as the waist wall. A pair of first protrusions 6 to be fixed to each other are integrally provided. The first protrusion 6 is further bent at a right angle to form a bent portion.

  The pair of first ridges 6 are formed in a long shape so as to protrude toward the non-structural wall 1 to increase the overall rigidity, and also serve as anchor portions to the concrete. And

Further, a pair of second ridges 7 are formed as joints with the joint rod 17 in a direction substantially perpendicular to the first ridges 6 from both ends of the arched portions 8 and 9 of the main body portion 5 having an annular cross section. Provided integrally.

  In the present invention, of the arch-shaped portions 8 and 9 on both sides of the main body portion 5 with respect to the slit core of the slit member 4, the arch-shaped portion 8 on the column side, that is, the structural framework 2 side is the wall side. Near the arched portion 9 on the structural wall 1 side, the non-structural wall 1 side and the structural framework 2 side were made asymmetric.

  The arch-shaped portion 8 on the structural frame 2 side is made shorter than the arch-shaped portion 9 on the non-structural wall 1 side, whereby the arch-shaped portion 8 can be brought closer to the non-structural wall 1 side.

  The main body 5 is provided with a detachable attachment 12 as a joint with the joint rod 17.

  As described above, the cross section of the main body 5 has a hollow shape that is closed by the pair of left and right arch-shaped portions 8 and 9 that swell outward, and the pair of upper and lower connecting portions 10 that connect the arch-shaped portions 8 and 9 together. The pair of upper and lower connecting portions 10 are U-shaped with their center portions protruding inward of the main body portion 5.

  The pair of second ridges 7 serving as joint portions with the joint rods 17 should be the dimension adjusting legs 11 protruding from the vicinity of the ends of the arch-like parts 8 and 9, and the attachment 12 is the dimension adjusting leg. 11 is attached using the protrusion on the inner surface.

  The dimension adjusting leg 11 is located between the mold 14 for forming the non-structural wall 1 and the main body 5, and is an element that determines the distance between the facing molds 14, that is, the thickness of the non-structural wall 1. It is a member.

  The attachment 12 is integrally formed with a fitting arm that engages with the projecting piece of the dimension adjusting leg 11.

  When the required wall thickness is relatively thin, a joint rod 17 for forming a joint at the time of completion of concrete placement is attached to the tip of the dimension adjusting leg 11 to determine the distance from the formwork 14 and face each other. Assembling is performed so that the distance between the molds 14 becomes equal to a predetermined wall thickness.

  The dimension adjusting leg portion 11 has a pair of protruding pieces 7a having the same height facing each other at a predetermined interval, and a protrusion 7b is formed on at least one inner surface of the protruding piece 7a. When not used, it acts as a contact surface for positioning the joint rod 17.

  The non-structural wall 1 side of the pair of first protrusions 6 projecting inward from the arch-like portions 8 and 9 to the inside of the non-structural wall 1 and the structural framework 2 and fixed to the non-structural wall 1 and the structural framework 2 is elongated. A hole 22 through which the bolt 19 can be formed is provided in the central portion. The holes 22 are provided at appropriate intervals in the longitudinal direction of the first protrusion 6 (the same direction as the longitudinal direction of the slit material 4).

  The end of the U-shaped connecting material 20 is fitted between the parallel first ridges 6 on the non-structural wall 1 side, and the bolts 19 and the nuts are connected.

  The U-shaped connecting member 20 that is disposed sideways is provided with a plurality of holes 21 for engaging the separators 18 that determine the distance between the facing molds 14, and the separators 18 pass through the holes 21. The slit material 4 is fixed to the separator 18 via the connecting material 14.

  When the connecting material 20 is not used, the separator 18 is directly passed through and fixed to the hole 22 of the first protrusion 6.

  Of the pair of second ridges 7 serving as joint portions with the joint rods 17, a notch 23 for fracture is formed on the non-structural wall 1 side in the event of a large earthquake.

  In this way, it is possible to control a range in which a part of the unstructured wall is broken to a minimum by a notch 23 for breaking.

  In the above embodiment, the slit material used at the joint between the non-structural wall of the building and the structural frame such as a column or a beam used for building the earthquake-resistant structure of the building has been described, but the present invention is not limited to this. The present invention can also be applied as a slit material provided at a joint between a non-structural wall and a non-structural wall or a structural framework and a structural framework.

It is a cross-sectional top view which shows 1st Embodiment of the slit material of this invention. It is a cross-sectional top view which shows 2nd Embodiment of the slit material of this invention. It is a perspective view which shows the construction state in 2nd Embodiment of the slit material of this invention. It is a cross-sectional top view which shows a prior art example. It is a cross-sectional top view which shows the construction state of a prior art example. It is a cross-sectional top view which shows the demolding state at the time of construction of a prior art example. It is a front view which shows the collapsed state of a non-structural wall and a structural frame.

DESCRIPTION OF SYMBOLS 1 ... Non-structural wall 2 ... Structural frame 3 ... Slit 4 ... Slit material 5 ... Main-body part 6 ... 1st protrusion 7 ... 2nd protrusion 7a ... Projection piece 7b ... Projection 8, 9 ... Arch-shaped part 10 ... Connecting part 11 ... Dimension adjusting leg 12 ... Attachment 13 ... Concrete 14 ... Formwork 15 ... Projection 17 ... Joint stick 18 ... Separator 19 ... Bolt 20 ... Connecting material 21 ... Hole 22 ... Hole 23 ... Notch

Claims (5)

  It is a long slit material provided along this at the joint between the members, formed into an elliptical cross section having arched portions on both sides of the main body, and a protrusion that protrudes from the main body to the inside of the member, In a slit material integrally provided with a protrusion that protrudes into a gap in the joint surface between members, with respect to the slit core, the arched portion on both sides of the main body portion is placed on the arched portion on one member side, and the other member side A slit material characterized by being asymmetric with respect to both member sides.   The slit according to claim 1, wherein the joint between the members is any one of a joint between the non-structural wall and the structural frame, a joint between the non-structural wall and the non-structural wall, and a joint between the structural frame and the structural frame. Wood.   The slit material according to claim 1 or 2, wherein the main body portion is provided with an attachment that is detachable toward a gap of a joint surface with each member.   The slit member according to any one of claims 1 to 3, wherein a connecting member is bolted between protrusions protruding inward of one member, and a separator is passed through a hole formed in the connecting member.   The slit material according to any one of claims 1 to 4, wherein a notch for breaking the concrete at the time of a large earthquake is formed on the protrusion protruding inward of one member.

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