JP2010047986A - Reinforcing body for steel pipe pole and method of reinforcing steel pipe pole using the reinforcing body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing body for a steel pipe pole for easily and economically reinforcing the ground side portion of the steel pipe pole, and to provide a method of reinforcing the steel pipe pole using the reinforcing body. <P>SOLUTION: To reinforce the steel pipe pole, the reinforcing body formed, as a precast, by filling mortar without any gap between a plurality of bar members for reinforcement equally spaced with the same angle in the circumferential direction of the steel pipe pole with a plurality of uniformly arranging tools to package the entire part of the bar members with the mortar and to integrate the bar members to each other is inserted into the ground side portion of the steel pipe pole. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, a ground in a steel pipe column is reinforced to reinforce the ground of a hollow steel pipe column such as a signal column for a traffic signal lamp, etc., which has a predetermined lower portion embedded in the ground and standing on the ground. The present invention relates to a reinforcing member for a steel pipe column and a method for reinforcing a steel pipe column using the reinforcing member.

  A signal pole for a traffic signal lamp standing on the side of a road or at a corner of an intersection, for example, as shown in FIG. Is buried and fixed in the underground 93, and the root rod 95 penetrates the diameter of the steel pipe column 91 in the portion embedded in the underground 93, thereby making it difficult for the steel pipe column 91 to fall down. . Note that the top opening at the upper end of the steel pipe column 91 is closed by the end cap 91a.

Moreover, the simple reinforcement method of a steel pipe pillar is already known (patent document 1).
JP 2006-283392 A

  As described above, the steel pipe column 91 such as the signal column standing on the side of the road or at the corner of the intersection is composed of a hollow steel pipe and has a certain strength or more. The part of the border between the part buried in and the part exposed on the ground is often moist compared to other parts because, for example, dogs often urinate for marking. Therefore, it is easy to corrode, and there is no denying the possibility of collapsing from this corroded ground part.

  The present invention has been made in view of the above, and an object of the present invention is to provide a reinforcing body for a steel pipe column that easily and economically reinforces the ground portion of the steel pipe column, and a steel pipe column using the reinforcing body. It is to provide a reinforcing method.

  In order to achieve the above-mentioned object, the steel pipe column reinforcing body according to claim 1 is a steel pipe for reinforcing the ground of a hollow steel pipe column standing on the ground with a predetermined lower portion embedded in the ground. A steel pipe column reinforcing body disposed on the ground in a column, and a plurality of bars disposed at a predetermined length below and a predetermined length above the steel tube column along the longitudinal direction of the steel tube column. The reinforcing rod-shaped member, which has a lower end hitting the root rod penetrating the diameter of the steel pipe column at a predetermined distance downward from the ground, is formed to be short so as to avoid the root rod. A plurality of reinforcing rod-shaped members, and a plurality of retaining rod-shaped members inserted and held so that the plurality of reinforcing rod-shaped members are arranged at equal angles in the circumferential direction of the steel pipe column. A plurality of uniform arrangement jigs having a portion and an equal angle in the circumferential direction of the steel pipe column with the plurality of equal arrangement jigs. A mortar that is filled with no gap between a plurality of reinforcing rod-shaped members arranged in the wrapping, integrated and consolidated as a precast, with a lower end formed short so that it does not hit the root bar A mortar integrally solidified so as to form a deep groove for passing through the root bar while avoiding filling of the mortar with respect to a portion through which the root bar below the bar member passes, and the opposing of the plurality of reinforcing bar members And at least two hook members that are integrally attached so as to protrude from at least two upper ends, and the hook member protrudes above the precast solidified mortar.

  The reinforcing member for a steel pipe column according to claim 1, wherein the reinforcing member for the steel pipe column is a plurality of reinforcing rod-like members arranged at equal angles in the circumferential direction of the steel pipe column with a plurality of uniform arrangement jigs. The mortar is filled without any gaps, and the whole is wrapped and integrated to form a precast, so by inserting this reinforcement body into the steel pipe column, the ground of the steel tube column is strongly reinforced. The steel pipe column is not easily collapsed from the ground part, and even if the steel pipe part is corroded, the steel pipe column is not easily collapsed by the strong internal structure composed of a plurality of reinforcing rod-shaped members and the reinforcing body configured as mortar as a precast, It is hard to break.

  In the reinforcing member for a steel pipe column according to claim 2, the plurality of reinforcing rod-shaped members include a plurality of aramid rods and a plurality of PC steel wires, and the plurality of aramid rods and the plurality of PC steel wires are The gist is that they are alternately arranged in the circumferential direction of the steel pipe column.

  In the reinforcing member for a steel pipe column according to claim 2, since the plurality of reinforcing rod-shaped members are configured by alternately arranging a plurality of aramid rods and a plurality of PC steel wires in the circumferential direction of the steel pipe column, The rod-shaped member for use becomes very difficult to break, and the reinforcing body constituted by the rod-shaped member that is difficult to break is extremely strong. Therefore, by inserting the reinforcing body into the ground in the steel tube column, the steel tube column is It will be extremely difficult to collapse from the border.

  The reinforcing body for steel pipe columns according to claim 3 is characterized in that the outer circumferences of the plurality of reinforcing rod-like members arranged at equal angles in the circumferential direction of the steel pipe columns by the plurality of uniform arrangement jigs are wires and a plurality of locations are provided. The gist is that it is bound and fixed.

  In the reinforcing member for steel pipe pillars according to claim 3, since the outer periphery of the plurality of reinforcing rod-like members is fixed by being bound at a plurality of points with a wire, the reinforcing member is configured more firmly.

  The reinforcing body for steel pipe columns according to claim 4 is characterized in that the outer periphery of the precast formed by solidifying the mortar is coated with silicon after the aramid fiber sheet and the sponge mesh sheet are wound at a plurality of locations. And

  5. The reinforcing body for a steel pipe column according to claim 4, wherein silicon is applied after the outer periphery of the precast is wound with an aramid fiber sheet and a sponge mesh sheet at a plurality of locations. It is possible to improve the adhesiveness and buffering property, and to protect the reinforcing body itself.

  A reinforcing method for a reinforcing body according to claim 5 is a method for reinforcing a steel pipe column using the reinforcing body for a steel pipe column according to any one of claims 1 to 3, wherein the end of the top opening at the upper end of the steel pipe column is provided. The palate is removed and the crushed stone is thrown into the steel pipe column from the top opening to a position below the root bar penetrating the diameter of the steel pipe column in the ground, and suspended from the hook member. The reinforcement body is inserted into the steel pipe column from the top opening at the top end of the steel pipe column while the rope is attached and the reinforcement body is suspended, and the reinforcement body inserted into the steel pipe column while being suspended is gradually lowered. The root bar passing through the steel pipe column is adjusted so that the root bar passes through the root bar passing deep groove while the root bar is fitted into the root bar passing deep groove, and the lower end of the reinforcing body is attached to the crushed stone. A reinforcing body lowering step for lowering the reinforcing body until it abuts, After the lower end of the strong body comes into contact with the crushed stone and stabilizes, the suspension rope is taken out from the top opening of the steel pipe column, and the suspension rope is taken out by attaching a terminal lid to the top opening and fixing it. Is the gist.

  In the reinforcing method of the reinforcing body according to claim 5, the crushed stone is thrown into the steel pipe column, inserted into the steel pipe column while suspending the reinforcing body, and the lower end portion of the reinforcing body abuts against the crushed stone and is stabilized. The steel pipe column can be reinforced by simply and economically inserting the pre-cast reinforcement body into the steel pipe column, because the steel pipe column is reinforced by inserting it into the ground part of the steel pipe column. At the same time, this reinforcing body makes it difficult for the steel pipe column to collapse from the ground.

  The gist of the reinforcing method of the steel pipe column according to claim 6 is that silicon is applied after the outer periphery of the reinforcing body is wound with an aramid fiber sheet and a sponge mesh sheet at a plurality of locations.

  In the method for reinforcing a steel pipe column according to claim 6, since the outer periphery of the precast constituting the reinforcing body is wound with the aramid fiber sheet and the sponge mesh sheet at a plurality of locations and silicon is applied, the inner periphery of the steel pipe column In addition to improving the adhesion and buffering properties of the reinforcing body to the surface, the reinforcing body itself can be protected.

  According to the steel pipe column reinforcing body of the present invention, the steel pipe column reinforcing body is between a plurality of reinforcing rod-like members that are uniformly arranged at equal angles in the circumferential direction of the steel pipe column with a plurality of equal placement jigs. The mortar is filled without any gaps, and the whole is wrapped and integrated to form a precast, so by inserting this reinforcement body into the steel pipe column, the ground of the steel tube column is strongly reinforced. The steel pipe column is not easily collapsed from the ground part, and even if the steel pipe part is corroded, the steel pipe column is not easily collapsed by the strong internal structure composed of a plurality of reinforcing rod-shaped members and the reinforcing body configured as mortar as a precast, It is hard to break.

  Further, according to the method for reinforcing a steel pipe column of the present invention, crushed stone is introduced into the steel pipe column, inserted into the steel pipe column while suspending the reinforcing body, and the lower end portion of the reinforcing body abuts against the crushed stone and is stabilized. Since the reinforcing body is inserted into the ground part of the steel pipe column and the ground part of the steel pipe column is reinforced, the steel pipe column can be reinforced by a simple and economical method by simply inserting a precast reinforcement body into the steel pipe column. At the same time, this reinforcing body makes it difficult for the steel pipe column to collapse from the ground.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 is a view showing an internal structure of a steel pipe column 91 reinforced by using a steel pipe column reinforcing body according to an embodiment of the present invention. In the same figure, the reinforcement body 1 of this embodiment is inserted in the steel pipe pillar 91, provided in the ground part, and the ground part of the steel pipe pillar 91 is reinforced.

  Specifically, as shown in FIGS. 2 and 3, the reinforcing body 1 is configured as a cylindrical precast cast with mortar. As shown in the perspective view and the bottom view of FIGS. 2B, 2C, 3B, and 2C, the root bar 95 described in FIG. Thus, it is formed by deeply cutting out in a cross shape and constitutes a rooted rod passing deep groove 1a.

  Further, as shown in the top view and perspective view of FIGS. 2 (a), (b), 3 (a), and (b), two hook members 3 are attached to the upper end surface of the reinforcing body 1, The reinforcing body 1 can be lifted by, for example, attaching a hanging rope to the hooking member 3 and lifting it. Such lifting of the reinforcing body 1 is performed when the reinforcing body 1 is inserted into the steel pipe column 91 from its top opening 91b.

  In the reinforcing body 1, the belt-like member 5 is wound around the outer periphery of the precast at a plurality of locations (three locations in the present embodiment), thereby improving the adhesion and buffering properties of the reinforcing body 1 to the inner peripheral surface of the steel pipe column 91. In addition, the reinforcing body 1 is protected. Specifically, the band-like member 5 is configured by winding an aramid fiber sheet and a sponge mesh sheet around the outer periphery of the reinforcing body 1 and then applying silicon.

  As shown in FIG. 1, a crushed stone 97 is laid on the bottom of the steel pipe column 91, and the reinforcing body 1 is provided on the crushed stone 97. The reinforcing body 1 provided on the crushed stone 97 is provided with about two thirds below and about one third above the ground, with about two thirds below the ground. It is embedded in 93. Further, a root skein 95 is provided in the middle of about two-thirds embedded in the underground 93 through the steel pipe column 91. The root skein 95 is a root skein of the reinforcing body 1. It fits in the passage deep groove 1a.

  The steel tube pillar reinforcement body 1 of the present embodiment configured as described above is configured as a precast by solidifying mortar, and the internal structure of the precast is composed of a plurality of aramid rods and PC steel wires as will be described later. A plurality of reinforcing rod-shaped members are arranged at equal angles in the circumferential direction of the steel pipe column 91 and are configured to have a strong structure, but the reinforcing body configured to have such a strong structure The steel pipe column 91 reinforced by inserting 1 into the ground part is reinforced very strongly at the ground part. Therefore, as described above, even when a dog or the like pees on the ground part of the steel pipe column 91 and the ground part corrodes, the reinforcement rod-shaped members are reinforced with mortar and configured as a precast. The steel pipe column 91 is difficult to collapse from the ground part by the body 1, and even if the steel pipe part is corroded, the steel pipe column 91 is easy by the reinforcing body 1 configured as a precast with a strong internal structure and mortar. It is hard to fall down and hard to break.

  Next, with reference to FIG. 4 and 5, the internal structure of the part solidified as the precast of the reinforcing body 1 and covered with mortar will be described.

  4 (a), (b), (c), and (d) show the internal structure of the reinforcing body 1 composed of a plurality of reinforcing rod-shaped members while showing the outline of the mortar solidified as a precast with dotted lines. FIG. 5 is a top view, a front view, a cross-sectional view taken along line AA ′ in FIG. 4B, and a cross-sectional view taken along line BB ′ in FIG. FIGS. 5A and 5B are a top view and a front view, respectively, showing only the internal structure of the reinforcing body 1 from which the mortar indicated by the dotted line in FIG. 4 is removed.

  As shown in FIGS. 4 and 5, the reinforcing body 1 has four large-diameter aramid rods 11 and four small-diameter PC steel wires 21 as a plurality of reinforcing rod-shaped members. The PC steel wires 21 are alternately arranged in the circumferential direction of the steel pipe column 91. Further, a plurality of reinforcing rod-shaped members made of the aramid rod 11 and the PC steel wire 21 are arranged in the steel pipe column 91 at equal angles in the circumferential direction of the steel pipe column 91 (four in the figure). Are inserted into ring-shaped holding portions 31a and 31b of the uniform arrangement jig 31, respectively. That is, the large-diameter aramid rod 11 is inserted into the large-diameter ring-shaped holding portion 31a, and the small-diameter PC steel wire 21 is inserted into the small-diameter ring-shaped holding portion 31b.

  As shown in FIG. 4B, the PC steel wire 21 among the plurality of reinforcing rod-shaped members is formed to be shorter than the aramid rod 11, so that the lower end portion of the PC steel wire 21 passes through the root rod. It does not enter into the deep groove 1a. That is, as shown in FIGS. 2 and 3, when the reinforcing body 1 configured as a precast is inserted into the steel pipe column 91, the lower end portion of the PC steel wire 21 does not hit the root bar 95. It is short. And when it hardens with mortar as a precast, the filling of the mortar to the part where the lower end part of this PC steel wire 21 was formed short is avoided, and the rooting rod passage deep groove 1a is formed in this part.

  As shown in FIGS. 4 (b) and 5 (b), the four evenly arranged jigs 31 are composed of a PC steel wire formed short and an upper end portion of a reinforcing rod-shaped member composed of an aramid rod 11 and a PC steel wire 21. It is arrange | positioned at equal intervals between the lower end parts of 21. FIG. Further, the aramid rod 11 and the PC steel wire 21 inserted into the ring-shaped holding portions 31a and 31b of the respective uniform arrangement jigs 31 are inserted into small screw holes 41 formed on the outer side portions of the holding portions 31a and 31b. When the screwed screw 43 is tightened, the tip of the screw 43 abuts against the aramid rod 11 and the side portion of the PC steel wire 21 and is strongly pressed to be fixed to the evenly arranged jig 31. The plurality of reinforcing bar-shaped members made of the PC steel wire 21 are integrally connected by a plurality of evenly arranged jigs 31, and the plurality of reinforcing bar-shaped members and the plurality of equally arranged jigs 31 are integrally fixed. ing.

  In addition, since the small screw hole 41 formed in the outer side part of the holding | maintenance parts 31a and 31b of the equal placement jig | tool 31 is plugged up with the small screw 43 in FIG. 4, 5, the structure is unknown. However, as a clear indication of the structure of the small screw hole 41, the uniform arrangement jig shown in FIG. 15 is used for a steel pipe column reinforcement body according to another embodiment, and the holding portions 31a and 31b. The positions and structures of the small screw holes 41 are clearly shown, but the small screw holes 41 are formed in a ring shape of the uniform arrangement jig shown in FIG. It can be seen that the holding portions 31a and 31b are formed at substantially the center of the outer side portion.

  As described above, a plurality of reinforcing rod-shaped members composed of the aramid rod 11 and the PC steel wire 21 integrally connected by the plurality of evenly arranged jigs 31 are further shown in FIGS. 4 (b) and 5 (b). As shown in the figure, the wire 51 is firmly bound at six points so that it does not fall apart carelessly.

  The hook member 3 is fixedly attached to the upper ends of two opposing PC steel wires 21 among a plurality of reinforcing rod-shaped members. In addition, this hooking member 3 is for attaching the rope for suspension, for example, and lifting the reinforcement body 1 as mentioned above. There are various methods for fixedly attaching the hooking member 3 to the upper end of the PC steel wire 21. For example, a rod-like portion extending below the ring-like hooking member 3 is formed in a long cylindrical body. Then, a screw hole is formed in the side portion of the cylindrical body, the upper end portion of the PC steel wire 21 is inserted into the cylindrical body, a screw is screwed into the screw hole and tightened, and the tip of the screw is attached to the PC steel. It can be fixedly attached by abutting against the wire 21 and pressing strongly.

  As described above, a plurality of reinforcing rod-shaped members composed of the aramid rod 11 and the PC steel wire 21 are integrally connected by a plurality of evenly arranged jigs 31, and a plurality of locations are firmly bound and fixed by a wire 51, Further, by firmly attaching the hooking member 3 to the upper ends of the two PC steel wires 21, a strong internal structure of the steel pipe column reinforcing body 1 is completed. 2 and 3, a mold having an internal structure substantially similar to the outer shape shown in FIGS. 2 and 3 is prepared, and the internal structure of the reinforcing body 1 is placed in the mold and further solidified. When the mortar is filled, the mortar is filled with no gaps and filled so as to wrap the entire mortar, and then the mortar is cured. Integrated with mortar Precast Tsuyotai 1 is formed as shown in FIGS.

  By winding the belt-like member 5 around the precast outer periphery of the reinforcing body 1 formed in this way at three locations, the adhesion and buffering properties of the reinforcing body 1 to the inner peripheral surface of the steel pipe column 91 are improved and the reinforcement is also performed. The body 1 can be protected, whereby the reinforcing body 1 for the steel pipe column is completed.

  Next, with reference to FIG. 6 thru | or FIG. 10, the procedure is demonstrated later on about the method of reinforcing the steel pipe column 91 using the reinforcing body 1 for steel pipe columns comprised as mentioned above.

  First, as shown in FIG. 6, the end cap 91a at the upper end of the steel tube column 91 to be reinforced is removed, and a CCD camera 81 is installed inside the steel tube column 91 from the top opening 91b of the steel tube column 91 from which the end cap 91a is removed. The inside of the steel pipe column 91 is confirmed with the CCD camera 81. The CCD camera 81 is connected to a power supply unit 81b provided outside via an electric cord 81a.

  When the inside of the steel pipe column 91 is confirmed by the CCD camera 81 and it is confirmed that there is no problem, next, as shown in FIG. 7, as shown in FIG. Then, the upper end of the string 83a is fixed to the top opening 91b of the steel pipe column 91 with, for example, gum tape. Note that the predetermined position at which the pigtail 83 is suspended is the uppermost position of the crushed stone 97 described in FIG. In other words, the whistling 83 is suspended to a position where the sharp tip of the whistling 83 is considered to be the uppermost position of the crushed stone 97 shown in FIG. This is to set the position up to where the crushed stone 97 is introduced in the process described below.

  As shown in FIG. 8, the funnel 85 is attached to the top opening 91b of the steel pipe column 91 as shown in FIG. 8, and the CCD camera 81 is also attached to the top as shown in FIG. It is suspended in the steel pipe column 91 from the opening 91b. Then, a bucket 87 containing crushed stone is prepared, and a predetermined amount of crushed stone 89 is put into the steel pipe column 91 through the funnel 85 from the bucket 87 while checking with the CCD camera 81. The input crushed stone is deposited as crushed stone 97 on the bottom of the steel pipe column 91. When a predetermined amount of the crushed stone 97 deposited on the bottom of the steel pipe column 91 is introduced, the sharp tip of the squirrel 83 hits the crushed stone 97, and the string 83a that suspends the squirrel 83 is slightly loosened. Although it can be seen that the crushed stone 97 has not yet hit the sagula 83, the crushed stone is further charged and the crushed stone 97 is charged to a predetermined position. As a result, the crushed stone 97 at the bottom of the steel pipe column 91 is deposited to a position below the root bar 95, specifically, for example, 20 to 30 cm below, as shown in FIGS.

  When the crushed stone 97 is deposited on the bottom of the steel pipe column 91, as shown in FIG. 9, the suspension rope 71 is then passed through the hook member 3 of the steel pipe column reinforcement 1. Then, the reinforcing body 1 is suspended by the crane 73, the reinforcing body 1 is inserted into the steel pipe column 91 from the top opening 91b of the steel pipe column 91, and the steel pipe column 91 is gradually lowered. Then, the reinforcing body 1 is further lowered, and when the lower end of the reinforcing body 1 is likely to hit the rooting bar 95, the rooting bar 95 is properly fitted into the rooting bar passage deep groove 1a of the reinforcing body 1. Thus, the position of the reinforcing body 1 is adjusted. When the root bar 95 is fitted in the root bar passing deep groove 1 a of the reinforcing body 1, the reinforcing body 1 is further lowered, and the lower end portion of the reinforcing body 1 is brought into contact with the crushed stone 97 to be stabilized.

  After the lower end portion of the reinforcing body 1 comes into contact with the crushed stone 97 and stabilizes, the suspension rope 71 is taken out from the top opening 91b of the steel pipe column 91, and then the end cap is placed on the top opening 91b of the steel pipe column 91 as shown in FIG. 91a is attached and fixed.

  As described above, the steel pipe column 91 has the reinforcing member 1 inserted into the ground portion thereof, and the ground portion is reinforced very firmly. Therefore, even if the ground part of the reinforcing body 1 is corroded by a pee such as a dog, the steel pipe column 91 collapses from the ground part by the reinforcing body 1 configured as a precast by solidifying a plurality of reinforcing rod-shaped members with mortar. It has become difficult.

  Next, with reference to FIGS. 11 to 16, a steel pipe column reinforcing body according to another embodiment of the present invention will be described.

  First, a reinforcing body 201 according to another embodiment shown in FIG. 11 corresponds to the reinforcing body 1 shown in FIGS. 1 to 10 described above, and the overall configuration thereof is shown in FIGS. 1 to 10. Similar to the reinforcing body 1, a plurality of reinforcing rod-shaped members made of aramid rods and PC steel wires are integrally connected with a plurality of evenly arranged jigs, and a plurality of places are firmly bound and fixed with a wire. Fill a solid internal structure with mortar between the structures without any gaps and wrap the entire mortar, and then harden the mortar. Although it is configured as an integrated precast, the reinforcing body 201 of this other embodiment is not formed in a crossed shape with a root kernel passing deep groove through which the root skein passes. "One" That it has a root skein rod passes deep grooves 201a formed in the Jo are different significantly.

  This is because only one skein bar attached to the steel pipe column to which the reinforcing body 201 is applied is provided in a straight line. That is, there are two types of steel pipe pillars, one having two crossed bars and one having only one straight line. The reinforcing body 201 of another embodiment shown in FIGS. 11 to 16 is applied to a steel pipe column in which only one latter skein bar is provided in a straight line.

  The reinforcing body 201 shown in FIG. 11 is also the same in that two hooking members 3 are attached to the upper end surface of a structure formed as a mortar precast. The reinforcing body 201 shown in FIG. 11 has a plurality of belt-like members 5 configured by applying an aramid fiber sheet, a sponge mesh sheet and silicon as shown in FIG. 2 on the outer peripheral surface of a precast made of mortar. Although not shown, this is omitted for simplification of the drawing. It is actually provided.

  FIG. 12 is a perspective view showing the internal structure when the mortar of the reinforcing body 201 shown in FIG. 11 is removed. The internal structure of the reinforcing body 201 is substantially the same as that of the reinforcing body 1 shown in FIG. 5, but the number of aramid rods 11 and PC steel wires 21 constituting a plurality of reinforcing rod-like members is different. It has increased from 6 to 6 each. These aramid rods 11 and PC steel wires 21 increased to six are alternately arranged in the circumferential direction of the steel pipe column as can be seen from the top and bottom views shown in FIGS. 13 (a) and 13 (b). Yes.

  Further, in FIG. 12, four reinforcing rod-shaped members each consisting of six aramid rods 11 and PC steel wires 21 are arranged at equal angles in the circumferential direction in the steel pipe column. Are inserted into the ring-shaped holding portions 31a, 31b, 33a and 33b of the two types of equal placement jigs 231 and 233, respectively. The large-diameter aramid rod 11 is inserted into the large-diameter ring-shaped holding portions 31a and 33a, and the small-diameter PC steel wire 21 is inserted into the small-diameter ring-shaped holding portions 31b and 33b.

  FIG. 14 is a front view of the internal structure of the reinforcing body 201 shown in FIG. 12. As can be seen from this front view, the internal structure of the reinforcing body 201 hits a root bar among a plurality of reinforcing rod-shaped members. The aramid rod 11 which is a reinforcing rod-shaped member of a part is formed short and does not enter the rooted rod passing deep groove 201a.

  One of the two types of equal placement jigs 231 and 233 is composed of six large-diameter aramid rods 11 and six small-diameter PC steel wires 21 as shown in FIG. 6 aramid rods 11 and 6 PC steel wires 21 are inserted into each of the steel pipe columns so as to be evenly and alternately arranged at equal intervals in the circumferential direction. 31a and six small diameter holding portions 31b.

  As shown in FIG. 16, the other equal arrangement jig 233 is arranged with two large diameter aramid rods 11 and three small diameter PC steel wires 21 equally and alternately at equal intervals in the circumferential direction of the steel pipe column. As shown in the figure, the two aramid rods 11 and the three PC steel wires 21 are inserted through two large-diameter ring-shaped holding portions 33a and three small-diameter holding portions 33b.

  As can be seen from FIG. 12 and FIG. 14, the equal arrangement jig 233 is formed with the two aramid rods 11 corresponding to the rooted rod passing deep groove 201 a being short and the two aramid rods 11 being shortened. Other than the four long aramid rods 11 and the six long non-short PC steel wires 21 are provided in order to appropriately hold them in the vicinity of the root rod passing deep groove 201a. However, the uniform arrangement jig 233 is divided into two short pieces to prevent the root placement rod passing deep groove 201a from being blocked by the uniform arrangement jig 233. Is.

  12 and 14, for the sake of simplification of the drawing, a wire 51 is shown in which a plurality of reinforcing bar-like members are firmly bound as shown in FIGS. 4 and 5 so as not to be separated. It is not actually provided.

  As described above, a plurality of reinforcing rod-shaped members composed of the six aramid rods 11 and the six PC steel wires 21 are integrally connected by the plurality of evenly arranged jigs 231 and 233, and further, at a plurality of locations by the wire 51. Are firmly bound and fixed, and the hooking member 3 is fixedly attached to the upper ends of the two PC steel wires 21, thereby completing a strong internal structure of the reinforcing member 201 for the steel pipe column.

  When the mortar is filled between the plurality of reinforcing rod-shaped members of the internal structure of the reinforcing body 201 thus completed without gaps and is filled so that the entire mortar is cured, the interior becomes the reinforcing rod-shaped member. A precast of the reinforcing body 201 that is reinforced with and integrated with mortar as shown in FIG. 11 is formed.

  By winding the strip-shaped member 5 as shown in FIG. 2 around the precast outer periphery of the reinforcing body 201 formed in this way at a plurality of locations, the adhesion and buffering properties of the reinforcing body to the inner peripheral surface of the steel pipe column are improved. At the same time, the reinforcing body 1 can be protected, whereby the reinforcing body 1 for the steel pipe column is completed.

  As described above with reference to FIGS. 6 to 10, the steel pipe column reinforced by inserting the reinforcing body 201 having a strong internal structure as described above and integrally formed as a precast with mortar into the ground portion is The part is reinforced very firmly. Therefore, even if a dog or the like pees the ground part of the steel pipe column and corrodes it, the steel pipe pillar collapses from the ground part by the reinforcing body 201 configured as a precast by solidifying a plurality of reinforcing rod-shaped members with mortar. Even if the steel pipe part is corroded, the steel pipe column 91 is not easily collapsed and is not easily broken by the reinforcing body 1 configured as a precast with a strong internal structure and mortar.

It is a figure which shows the internal structure of the steel pipe column reinforced using the reinforcement body for steel pipe columns concerning one Example of this invention. (A), (b), (c) is the top view, perspective view, and bottom view which show the structure of the reinforcement body which is reinforcing the steel pipe column shown in FIG. (A), (b), (c) is the top view, perspective view, and bottom view seen from the angle different from FIG. 2 which shows the structure of the reinforcement body which is reinforcing the steel pipe column shown in FIG. (A), (b), (c), (d) are a top view, a side view, and a line AA in (b) showing the internal structure of the reinforcing body shown in FIGS. FIG. 6 is a cross-sectional view taken along the line BB ′ and a cross-sectional view taken along the line BB ′ of FIG. (A), (b) is the top view and side view which show the internal structure of the reinforcement body at the time of removing the mortar shown with a dotted line in FIG. It is a figure which shows the process of confirming the inside of a steel pipe pillar with a CCD camera in the first process of inserting the reinforcement body shown in FIGS. 2-5 in a steel pipe pillar. It is a figure which shows the process of inserting a whisper in the inside of a steel pipe column among the processes of inserting the reinforcement body shown in FIGS. 2-5 in a steel pipe column. It is a figure which shows the process of throwing a crushed stone into the inside of a steel pipe column among the processes which insert the reinforcement body shown in FIGS. 2-5 in a steel pipe column. It is a figure which shows the process of inserting a reinforcement body in the inside of a steel pipe column among the processes of inserting the reinforcement body shown in FIGS. It is a figure which shows the process of attaching an end cap to the top opening of a steel pipe column in the last process of inserting the reinforcement body shown in FIGS. 2-5 in a steel pipe column. It is a perspective view which shows the reinforcement body for steel pipe pillars concerning other embodiment of this invention. It is a perspective view which shows the internal structure of the reinforcement body shown in FIG. It is the top view and bottom view of the internal structure of the reinforcement body shown in FIG. It is a front view of the internal structure of the reinforcement body shown in FIG. It is a perspective view which shows the structure of the equal arrangement jig used for the reinforcement body shown in FIG. It is a perspective view which shows the structure of another equal arrangement jig | tool used for the reinforcement body shown in FIG. It is sectional drawing which shows the internal structure of the normal steel pipe pillar by which the lower part was embed | buried under the ground and stood on the ground.

Explanation of symbols

1,201 Reinforcing body 1a, 201a Root rod passing deep groove 3 Hook member 5 Strip member 11 Aramid rod 1
21 PC steel wire 31, 231, 233 Equal placement jig 31a, 31b, 33a, 33b Holding part 41 Screw hole 43 Machine screw 51 Wire 71 Suspension rope 81 CCD camera 83 Saguri 85 Funnel 91 Steel pipe column 91a End cap 91b Top opening 95 Root shaving rod 97 Crushed stone

Claims (6)

A reinforcing body for a steel pipe column disposed on the ground in the steel pipe column in order to reinforce the ground of a hollow steel pipe column that is embedded in the ground and has a predetermined lower portion embedded in the ground,
A plurality of reinforcing rod-shaped members disposed at a predetermined length below and a predetermined length above the steel pipe column along the longitudinal direction of the steel pipe column, at a position separated by a predetermined length downward from the surface A plurality of reinforcing rod-shaped members that are formed so as to be short so as to avoid the root rod, the reinforcing rod-shaped member whose lower end hits the root rod penetrating the diameter of the steel pipe column;
A plurality of evenly arranged jigs having a plurality of holding portions through which the plurality of reinforcing rod-shaped members are inserted and held so that the plurality of reinforcing rod-shaped members are evenly arranged at equal angles in the circumferential direction of the steel pipe column; ,
A mortar filled with a plurality of reinforcing bar-shaped members evenly arranged at equal angles in the circumferential direction of the steel pipe column with the plurality of uniform placement jigs without any gaps, and integrated and consolidated as a precast. In order to avoid the filling of mortar into the part where the root rod below the reinforcing rod-shaped member whose lower end is short so that it does not hit the root rod, the root rod passing deep groove is formed integrally. Mortar hardened into
At least two hook members integrally projectingly attached to at least two opposing upper ends of the plurality of reinforcing rod-shaped members, wherein the pulling member projects above the precast solidified mortar. A reinforcing member for a steel pipe column, characterized by comprising: a hanging member.   The plurality of reinforcing rod-shaped members have a plurality of aramid rods and a plurality of PC steel wires, and the plurality of aramid rods and the plurality of PC steel wires are alternately arranged in the circumferential direction of the steel pipe column. The reinforcing body for a steel pipe column according to claim 1.   The outer periphery of a plurality of reinforcing bar-like members that are evenly arranged at an equal angle in the circumferential direction of the steel pipe column by the plurality of uniform arrangement jigs is fixed at a plurality of places by being bound by a wire. Item 3. A reinforcing body for steel pipe columns according to item 1 or 2.   The outer periphery of the precast formed by solidifying the mortar is coated with silicon after being wound with an aramid fiber sheet and a sponge mesh sheet at a plurality of locations. Reinforcing body for steel pipe columns. A steel pipe column reinforcing method using the steel pipe column reinforcing body according to any one of claims 1 to 3,
The crushed stone throwing process of removing crushed stone from the top opening to the lower position away from the root bar penetrating the diameter of the steel pipe pillar in the ground to the lower position away from the root bar penetrating the diameter of the steel pipe pillar in the ground. When,
Reinforcing body insertion step of inserting the reinforcing body into the steel pipe column from the top opening at the upper end of the steel pipe column while hanging the reinforcing body by attaching a suspension rope to the hook member;
While suspending, the reinforcing body inserted into the steel pipe column is gradually lowered, and the root piercing bar penetrating the steel pipe column is adjusted so that the root kerf passes through the root kerf passing deep groove, and the root skein is passed through the root skein passing deep groove. A reinforcing body lowering step of fitting the skein bar and lowering the reinforcing body until the lower end of the reinforcing body contacts the crushed stone;
After the lower end of the reinforcing body comes into contact with the crushed stone and stabilizes, the suspension rope is taken out from the top opening of the steel pipe column, and the suspension rope is taken out and attached to the top opening by attaching a terminal lid. A method of reinforcing a steel pipe column using a reinforcing body characterized by the above.   6. The method of reinforcing a steel pipe column using the reinforcing body according to claim 5, wherein the reinforcing body is coated with silicon after an aramid fiber sheet and a sponge mesh sheet are wound at a plurality of locations on the outer periphery. .

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