JP4285703B2 - Structural reinforcement - Google Patents

Description

  The present invention relates to a structure that enhances the bonding strength of members to be coupled to each other, such as foundations and columns, foundations and foundations, foundations and columns, columns and beams, columns and girders, in structures such as wooden buildings. The present invention relates to a reinforcing tool and its attachment member.

  In various structures, for example, wooden buildings, there are joints between a plurality of members at various places. For example, a foundation and a foundation, a foundation and a pillar, a foundation and a foundation, a pillar and a beam, a pillar and a girder, and the like are combined. If these joints are properly implemented, a predetermined joint strength can be obtained, and even if an earthquake or the like occurs, the structure receives little damage and does not collapse. However, due to poor design and sloppy implementation, the strength of the connecting portion between members is insufficient, and it may be distorted or collapsed by an earthquake or typhoon. In view of this, a reinforcing metal fitting for increasing the bonding strength has been considered in a structure in which the strength of the joint location between members is insufficient or in a newly built structure.

  A conventional reinforcing metal fitting for a building has a relatively simple structure, and, for example, a plurality of members are coupled to each other using a single plate member and a fastening member such as a bolt or a nut. Alternatively, for example, in order to connect a base and a support post standing on the base, a metal fitting having an appropriate shape such as a plate-like L-shape or T-shape is provided along the base and the support post, and the metal fitting is used as a fastening member. The base and the support are joined by fastening to the base and the support using

  The above-mentioned conventional reinforcing bracket for buildings is a member to be joined due to an earthquake or a typhoon because the target member to be joined and the reinforcing fitting are directly joined by fastening members such as bolts and nuts. When they try to deviate from each other, energy concentrates on the contact portion of the member to be joined with the fastening member, and damage such as cracks may be given to the member to be joined.

  Therefore, a pair of metal fittings fixed to the building structure material so that the energy applied to the members to be joined is not dispersed and the members to be joined are not damaged when the members to be joined are displaced from each other due to an earthquake or a typhoon. A main body and a fastener for connecting the pair of metal fittings to each other, and the pair of metal fittings are opposed pieces in which one end thereof is bent; There is a seismic reinforcement bracket for a building which is disposed in abutment between the other building structural material adjacent to this, and the opposing pieces of the pair of metal fitting bodies are elastically fastened by the fastener with an elastic material interposed therebetween. It has been proposed (see, for example, Patent Document 1).

  In addition, the specification of the patent owned by the present applicant includes a fastening member for fastening the structural reinforcement member to the member to be coupled and a periphery of the hole of the structural reinforcement member through which the fastening member passes. A structure reinforcing tool is described in which a gap formed is filled with an elastic member, and a storage cap is configured to confine the elastic member in the hole by fastening the fastening member (see Patent Document 2).

JP 2001-200592 A Japanese Patent No. 3490076

  According to the invention described in Patent Document 1, although the pair of metal fitting bodies are elastically coupled to each other, the bent opposing pieces of the pair of metal fitting bodies made of metal are in direct contact with each other, and Because the fasteners such as bolts and nuts are in direct contact with each other, when the objects to be joined are displaced from each other due to an earthquake or the like, the metals are displaced from each other while contacting with a large force. There is a drawback that the mitigation effect is not so great.

  In that respect, according to the invention described in Patent Document 2, energy when the objects to be combined are about to be displaced from each other due to an earthquake or the like is absorbed and dispersed by the elastic member, and damage to the objects to be combined and the reinforcing tool is prevented. In particular, the elastic member is buried in the gap formed between the fastening member and the periphery of the hole of the structural reinforcement tool through which the fastening member passes, and is also confined in the gap by the storage cap. It is effective and disperses energy effectively. The elastic member also acts as a restoring force that restores the above-described deviation when the biasing force during energy absorption.

  However, the invention described in Patent Document 2 still has problems to be solved. That is, when the elastic member is strongly pressed in one radial direction by the fastening member due to an earthquake or the like, the central hole of the elastic member may be deformed into an oval shape and a deformed shape may remain. If shaking continues in this state, even if the direction of shaking changes, the elastic member moves into the hole of the reinforcing tool so that the vibration direction of the fastening member and the major axis direction of the center hole deformed into the above-mentioned elliptical shape coincide. The vibration direction of the fastening member is always in one direction in relation to the elastic member. As a result, every time the elastic member performs its function, there is a problem to be solved that the deformation becomes larger and the energy absorbing force and the restoring force are lost and the function as the elastic member is lowered.

  Therefore, the present invention solves the problems of the invention described in Patent Document 2, devise the configuration so that the damage received by the elastic member can be reduced even if the elastic member is deformed due to an earthquake, etc. It is an object of the present invention to provide a structural reinforcement tool and its mounting member that can maintain the energy absorbing function of the member and the restoring force of the elastic member over a long period of time.

According to a first aspect of the present invention , there is provided a structural reinforcement device for reinforcing the coupling strength between members to be coupled to each other in the structure, which is formed to correspond to the members to be coupled. through a plurality of holes, a ring-shaped elastic member is fitted into the hole, a storage cap to confine the hole over the elastic member from the outside, the storage cap penetrates the center hole of the elastic member and the storage cap A fastening member that fastens the structural reinforcement to the member to be coupled, and the hole is a deformed hole, and the outer shape of the elastic member fills the deformed hole and is prevented from rotating. It is a main feature.

According to the first aspect of the invention, a plurality of holes formed so as to correspond to the member to be bonded, a ring-shaped elastic member is fitted into the hole, the hole to cover the elastic member from the outside And a fastening member that penetrates the central hole of the elastic member and the storage cap and fastens the structural reinforcing member to the member to be coupled via the storage cap, and the hole is a deformed hole. Since the outer shape of the elastic member fills the irregular hole and is prevented from rotating , the contact area between the hole of the elastic member and the interposition member is larger than the contact area between the hole of the elastic member and the fastening member. The energy when the structure is shaken due to an earthquake or the like is absorbed in a wide range of the elastic member, and damage to the elastic member can be reduced. As a result, the energy absorbing function by the elastic member and the restoring force of the elastic member can be maintained over many years.
Further, since the elastic member is prevented from rotating and the elastic member does not escape, the elastic member may be deformed according to the displacement direction of the members to be coupled to each other due to an earthquake or the like, and the elastic member may be deformed only in one direction. This can prevent damage to the elastic member. As a result, the energy absorbing function by the elastic member and the restoring force of the elastic member can be maintained over many years.

Embodiments of a structural reinforcement tool according to the present invention will be described below with reference to the drawings.
FIGS. 1 to 6 show examples of T-shaped structural reinforcing tools. FIGS. 1 and 2 show Example 1, FIG. 3 shows Example 2, and FIGS. 4 and 5 show Example 3. FIG. FIG. 6 shows a fourth embodiment. However, the T-shaped structural reinforcement may be upside down or sideways depending on how it is used. In addition, the shape of the structural reinforcing tool may be a simple linear shape or an L shape, and is not limited to a specific shape. Each example will be described below.

  1 and 2, the T-shaped structure reinforcing tool 20 is used as a structure reinforcing tool for reinforcing the connection between the pillar 10 of the structure and the beam 11 placed in a perpendicular direction thereon. ing. The structural reinforcement tool 20 is a plate-like member composed of a vertical piece and a horizontal piece, and a plurality of circular holes 201 are formed in each of the vertical piece and the horizontal piece. A fastening member 25 made of a bolt is inserted through each hole 201, and each fastening member 25 is screwed into the column 10 and the beam 11 to be fastened, whereby the structure reinforcing tool 20 is fastened to the column 10 and the beam 11. The coupling strength between the column 10 and the beam 11 is reinforced. The fastening structure of the structural reinforcement tool 20 is devised as follows. That is, a circular elastic member 22 made of, for example, a rubber plate is fitted in each hole 201 with no gap between the hole 201 and the peripheral wall of each hole 201. The elastic member 22 has a central hole through which the fastening member 25 passes. A storage cap 23 is applied to the outer surface (front surface) side of the elastic member 22, and a washer 24 is further applied to the outer surface (front surface) side of the storage cap 23, and a central hole between the washer 24 and the storage cap 23 is provided. The fastening members 25 are inserted through the shafts 10 and the respective fastening members 25 are screwed into the corresponding columns 10 and beams 11. The storage cap 23 is a circular plate made of metal and has an outer diameter larger than the diameter of the hole 201. Therefore, when the fastening member 25 is screwed into the column 10 and the beam 11 and fastened, the storage cap 23 covers the elastic member 22 from the outside and is confined in the hole 201. The elastic member 22, the storage cap 23, the fastening member 25, and the like constitute an attachment member for attaching the structure reinforcing rod 20 to the column 10, the beam 11, and the like.

  According to the embodiment described above, energy when the objects to be joined are displaced from each other due to an earthquake or the like is absorbed and dispersed by the elastic member 22, and damage to the object to be joined and the structural reinforcement tool 20 is prevented. In particular, the elastic member 22 is buried in the fastening member 25 and the hole 201 of the structural reinforcement 20 through which the fastening member 25 penetrates, and is confined in the hole 201 by the storage cap 23, so that the elastic force is maximized. To effectively disperse energy. Further, the fastening member 25 is configured such that the diameter of the portion of the fastening member 25 that fits into the central hole of the elastic member 22 is larger than the diameter of the screw portion, and the diameter of the central hole of the elastic member 22 is increased correspondingly. The contact area between the elastic member 22 and the elastic member 22 can be increased, the energy dispersion and absorption effect can be further enhanced, and damage to the elastic member 22 can be reduced. The elastic member 22 also acts as a restoring force that restores the above-described deviation when the urging force during energy absorption.

  The second embodiment shown in FIG. 3 is not different from the first embodiment in appearance, but is different in the coupling structure between members of the structure to be coupled to each other. In the following, different parts of the structure will be described mainly. In FIG. 3, a plurality of holes 212 formed in the vertical piece and the horizontal piece of the T-shaped structure reinforcing tool 20 are steered wheel-shaped irregular holes in which edges of circular holes are cut out at a constant angular interval. It has become. The outer shape of the elastic member 222 fitted into these holes 212 is also a steering wheel, and is fitted into the edge of the hole 212 without any gap. Therefore, the elastic member 222 is fitted in the hole 212 in a form in which the rotation is stopped. The hole and the elastic member of the structure reinforcing tool 20 are not necessarily required to have a steering wheel shape as in the example of FIG. Any other shape other than a circle, such as an oval shape or an oval shape, may be used. The configuration of the storage cap 23, washer 24, and fastening member 25 is the same as the configuration of the embodiment shown in FIGS. The elastic member 222, the storage cap 23, the fastening member 25, and the like constitute an attachment member for attaching the structure reinforcing rod 20 to the column 10, the beam 11, and the like.

  According to the second embodiment shown in FIG. 3, the hole 212 of the structural reinforcement member 20 is a deformed hole, and the outer shape of the elastic member 222 fills the deformed hole 212 and is prevented from rotating. The elastic member 222 is deformed in accordance with the mutual displacement direction of the members (in the illustrated example, the column 10 and the beam 11) of the structure due to an earthquake or the like, and the elastic member 222 is prevented from being deformed only in one direction. The In other words, the elastic member 222 is uniformly deformed, and damage to the elastic member 222 can be reduced.

  The third embodiment shown in FIG. 4 and FIG. 5 is also the same as the first and second embodiments in appearance, and the connection structure of the structures to be connected to each other is different. 4 and 5, the plurality of holes 212 formed in the vertical piece and the horizontal piece of the T-shaped structural reinforcing tool 20 are formed as steering wheel-like holes as in the second embodiment. The elastic member 223 fitted into the hole 212 also has a steering wheel shape, and is fitted to the peripheral surface of the hole 212 without any gap. Therefore, the elastic member 223 is fitted in the hole 212 in a form in which the rotation is stopped. The third embodiment is different from the second embodiment in that the central hole of the elastic member 223 is relatively large, and the interposition member 26 is fitted on the inner peripheral side of the elastic member 223. The interposition member 26 is a circular ring-shaped member. The fastening member 25 is inserted through the center hole of the interposed member 26, and is screwed into the members (columns 10 and beams 11) to be coupled to each other in the structure to be fastened. Similar to the first and second embodiments, a storage cap 23 and a washer 24 are provided. The elastic member 223, the interposition member 26, the storage cap 23, the fastening member 25, and the like constitute an attachment member for attaching the structure reinforcing rod 20 to the column 10, the beam 11, and the like.

  According to the structural reinforcement tool according to the third embodiment, since the elastic member 223 that has an irregularly shaped hole 212 and fills the hole 212 is provided in the same manner as in the second embodiment, and the elastic member 223 is prevented from rotating, The same effect as in the second embodiment can be obtained. In addition, since the center hole of the elastic member 223 is made relatively large and the ring-shaped interposition member 26 is interposed in the center hole, the interposition member 26 that can be regarded as a member that is substantially integral with the fastening member 25. The area of contact between the elastic member 223 and the elastic member 223 can be increased, the energy dispersion and absorption effect during an earthquake can be further enhanced, and damage to the elastic member 223 can be reduced.

  The fourth embodiment shown in FIG. 6 is also the same as the first, second, and third in appearance, and has a different coupling structure with members to be coupled to each other in the structure. The difference in the imaging structure is in the shapes of the elastic member and the interposition member in comparison with the third embodiment shown in FIGS. In FIG. 6, the elastic member 224 has an outer peripheral shape that is a steering wheel shape, and an inner peripheral shape that is also a steering wheel shape. The outer peripheral shape of the interposition member 262 that fits on the inner periphery of the elastic member 224 is also a steering wheel shape. The interposition member 262 is fitted in a manner that complements the inner periphery of the elastic member 224. Therefore, both the elastic member 224 and the interposition member 262 are fitted to the odd-shaped hole 212 of the structural reinforcement tool 20 in a form in which the rotation is stopped. As in the above embodiments, the storage member 23 includes a storage cap 23, a washer 24, and a bolt, and the configuration or shape thereof is the same as in the above embodiments. The storage cap 23, the washer 24, the fastening member 25, the elastic member 224, and the interposition member 262 constitute an attachment member for the structural reinforcement tool. According to the structural reinforcement tool according to the fourth embodiment, it is possible to obtain the same effect as that of the structural reinforcement tool according to the second embodiment, and in addition to this, the same effect as that obtained by the third embodiment is also obtained. be able to. Further, even on the inner peripheral side of the elastic member 224, the elastic member 224 cannot escape due to the fitting of the inner periphery of the elastic member 224 and the outer periphery of the interposed member 262, and the buffering effect of the elastic member can be further enhanced. it can.

  FIG. 7 shows the difference in the coupling structure between the members to be coupled to each other in the embodiments described so far. A shown in the uppermost part represents the coupling structure of Example 4, B represents the coupling of Example 3, C represents the coupling of Example 2, and D illustrated in the lowermost stage represents the coupling structure of Example 1. The difference between these imaging structures is as already described.

  Next, Example 5 will be described with reference to FIG. In Example 5, the sheet-like elastic member 30 is interposed between members (not shown) of the structure to be coupled to each other and the structure reinforcing tool 20, and the sheet-like elastic member 30 includes: It is characterized in that a plurality of protrusions 31 that fit into a plurality of holes 21 formed in the structural reinforcement tool 20 are integrally formed. Each protrusion 31 corresponds to the elastic member 22 or the like in each of the above embodiments, and is formed by matching the shape of the outer periphery with the shape of the hole 21 so as to fit between the peripheral wall of the hole 21 without a gap. ing. The shape of each hole 21 and the outer peripheral shape of each protrusion 31 may be different, but each protrusion 31 is integral with the sheet-like elastic member 30 and cannot be rotated. Good. Each protrusion 31 has a central hole that is penetrated by the fastening member 250. Further, in this embodiment, the storage cap portion 251 is formed integrally with the fastening member 250, and this point is also different from the configuration of each embodiment described above. The storage cap portion 251 has an outer diameter larger than the diameter of the hole 21, that is, the outer diameter of the protruding portion 31, similar to the storage cap 23 in each embodiment. The sheet-like elastic member 30 and the structure reinforcement tool 20 are overlapped to fit the protrusions 31 corresponding to the holes 21, and the fastening members 250 inserted into the protrusions 31 are screwed into members to be connected to each other of the structure, and By fastening, the joint strength between the members to be joined can be reinforced. The protruding portion 31 of the elastic member 30, the fastening member 250, the storage cap portion 251 integrated with the protruding member 31, and the like constitute an attachment member that attaches the structure reinforcing rod 20 to a column or beam.

According to the structural reinforcement tool according to the fifth embodiment, a space between the structure and the structural reinforcement tool 20 can be buffered by the sheet-like elastic member 30, and the plurality of projecting portions 31 of the sheet-like elastic member 30 are provided. The protrusion 31 of the sheet-like elastic member 30 that functions as an elastic member is unidirectionally caused by an earthquake or the like because it is interposed between the peripheral wall of the hole 21 of the structural reinforcement tool 20 and the fastening member 250 in a manner that cannot rotate. Only the deformation can be prevented, and the damage received by each of the protruding portions 31 having elasticity can be reduced. Each of the protrusions 31 also acts as a restoring force that restores the mutual displacement of the members reinforced by the structural reinforcement tool 20 when the energy is absorbed. By forming the storage cap portion 251 integrally with the fastening member 250, the number of components can be reduced and component management can be facilitated, and the protruding portions 31 as a plurality of elastic members can be integrated with the sheet-like elastic member 30. In combination with the formation, the attachment work of the structural reinforcement tool 20 can be facilitated.
In FIG. 8, the structure reinforcing tool has been described assuming the structure reinforcing tool 20 having the same shape as each of the embodiments described above, but the shape of the structure reinforcing tool is arbitrary.

  FIG. 9 shows a sixth embodiment. In this embodiment, the structure reinforcement tool 40 is L-shaped, and the structure reinforcement tool is provided between the structure reinforcement tool 40 and the column 10 and the beam 11 reinforced by the structure reinforcement tool 40. A sheet-like elastic member 50 formed in substantially the same shape as 40 is interposed. The sheet-like elastic member 50 integrally includes a plurality of protrusions 51 similar to the protrusions 31 of the sheet-like elastic member 30 in the fifth embodiment. Each protrusion 51 functions as an elastic member and can be fitted into a plurality of holes 41 formed in the structural reinforcement tool 40. The fastening member 25 is fastened across the column 10 and the beam 11 through the central hole of the storage cap 23 and the protrusion 31, and the storage cap 23 is configured to confine the protrusion 31 as an elastic member in the hole 41. This is the same as in each of the previous embodiments. According to this embodiment, the same effect as that of Embodiment 5 can be obtained.

  FIG. 10 shows a seventh embodiment. The seventh embodiment is an example of a structural reinforcing tool 70 extending in a straight line. The foundation 60 is made of concrete or the like of the structure; This is an example of being used as a reinforcing tool for the coupling strength of these members. The structure reinforcing tool 70 has a hole for fastening it to the foundation 61, the base 61, and the pillar 10, the fastening member 25, and the like, but the fastening portion with the foundation 60 made of concrete or the like is the washer 24. And a conventional general fastening structure including only the fastening member 25. The fastening structure of the structure reinforcing tool 70 with the base 61 and the fastening structure with the column 10 are the fastening structure that characterizes the present invention.

  10, the fastening portion between the base 61 and the pillar 10 has the same structure as the fastening structure in the fourth embodiment described with reference to FIG. 6, and has a deformed hole 212, an elastic member 224, an interposition member 262, and a storage cap 23. , A washer 24 and a fastening member 25. In FIG. 10, the elastic member 224 has a steered wheel shape on the outer periphery and the inner periphery, and the outer peripheral shape of the interposition member 262 that fits on the inner periphery of the elastic member 224 is also a steered wheel shape. Therefore, both the elastic member 224 and the interposition member 262 are fitted to the hole 212 of the structure reinforcing tool 20 in a form in which the rotation is stopped.

  According to Example 7 shown in FIG. 10, the foundation 60, the base 61, and the pillar 10 are coupled by the structural reinforcement tool 70, and the coupling strength of the foundation 60, the foundation 61, and the pillar 10 is reinforced. The structural reinforcement tool 70 is fastened directly to the foundation 60 made of concrete or the like by the fastening member 15 and the washer 24 without the intervention of an elastic member. The base 61 and the pillar 10 are confined in the hole 212 of the structural reinforcement tool 70 through the elastic member 224 and the interposition member 262 and by covering the elastic member 224 and the interposition member 262 from the outside with the storage cap 23. The structural reinforcement tool 70 is fastened by the fastening structure. Therefore, the structure-reinforcing tool 70 according to the seventh embodiment can achieve the same functions and effects as those of the fourth embodiment shown in FIG.

  Next, various modifications of the attachment member for attaching the structure reinforcing tool to the structure will be described. In the embodiment shown in FIGS. 4 and 5 and the embodiment shown in FIG. 6, the elastic member, the interposition member, and the fastening member are separately prepared, and the interposition member is interposed between the elastic member and the fastening member. With this configuration, it is possible to obtain a specific effect as described above, but it is more preferable if a device for reducing the shearing force applied to the fastening member when an impact force is applied due to an earthquake or the like can be used. Referring to FIG. 5 as an example, when an impact force due to an earthquake or the like is applied, as shown by an arrow, a portion where the interposed member 26 hits the fastening member 25 in a direction perpendicular to the fastening member 25 and the storage cap 23 are perpendicular to the fastening member 25. The direction in which the force is applied differs depending on the portion that hits the direction, or even if the direction in which the force is applied is the same, there is a difference in the applied force, and a shearing force is applied to the fastening member 25. If the shearing force is large, the fastening member 25 may be cut, and even if it is not cut, if the shearing force is repeatedly applied, the fastening member 25 is fatigued and the strength is lowered. The example of the attachment member of the structural reinforcement tool shown in FIGS. 11 to 18 is considered in order to avoid the above-described problems.

  11 and 12, reference numeral 22 denotes a disk-like elastic member to be fitted into the attachment hole 201 formed in the structural reinforcement tool 20, and has a hole at the center. A storage cap 230 is overlaid on the elastic member 22 from above. The storage cap 230 has a center hole, and has a cylindrical protrusion 231 concentric with the center hole on the lower surface side, and the protrusion 231 is configured to fit into the center hole of the elastic member 22. The elastic member 22 is fitted into the hole 201 of the structural reinforcement member 20, the projection 231 is fitted into the central hole of the elastic member 22, the storage cap 230 is overlaid on the elastic member 22, and the fastening member 25 is passed through the central hole of the storage cap 230. This is screwed into the structure 10 and tightened. The elastic member is confined between the surface of the structure 10 and the storage cap 230.

  The protrusion 231 of the storage cap 230 corresponds to the interposed member in the above-described embodiment that is interposed between the elastic member and the fastening member. In the example shown in FIGS. 11 and 12, this interposed member is integrated with the storage cap 230. It has a configuration. As described above, since the member corresponding to the interposition member is formed integrally with the storage cap 230, the shearing force applied to the fastening member 25 when an impact force is applied due to an earthquake or the like can be reduced. The material of the storage cap 230 is not particularly limited. For example, the material may be a resin as long as it is a strong material such as ABS reinforced plastic, and may be iron, aluminum, stainless steel, or the like.

  The example shown in FIG. 13 is a modification of the example shown in FIGS. 11 and 12, and the outer shape of the projection 231 of the storage cap 230 is different from the outer shape of the interposition member 262 in the example shown in FIG. The shape of the inner peripheral side of the elastic member 22 into which the elastic member 22 is fitted is also an atypical shape corresponding to the outer shape of the interposition member 282, and the outer shape of the elastic member 22 is also atypical shape. The hole is also formed in a different shape corresponding to the outer shape of the elastic member 22.

  The example shown in FIG. 14 is a modification of the example shown in FIG. 13, and the outer shape of the projection 231 of the storage cap 230 is circular, the inner shape of the elastic member 22 into which the projection 231 fits is circular, and the outer shape of the elastic member 22 is The hole of the structural reinforcement member into which the outer shape is fitted is also an irregular shape corresponding to the outer shape of the elastic member 22.

  In the example shown in FIGS. 15 and 16, the elastic member 22 and the storage cap 233 are integrated. The elastic member 22 is integrally fixed to the lower surface of the storage cap 233 by means such as adhesion. By fitting the elastic member 22 into the attachment hole 201 of the structural reinforcement member 20, the storage cap 233 overlaps the structural reinforcement member 20. The elastic member 22 is confined between the column 10 and the storage cap 233 by passing the fastening member 25 through the central holes of the structural reinforcement member 20 and the elastic member 22 and screwing the fastening member 25 into the structural column 10 or the like. The structure reinforcing tool 20 is fastened to the column 10 in the shape.

  In the examples shown in FIGS. 15 and 16, the outer shape of the elastic member 22 is preferably an irregular shape such as a steered wheel as shown in FIG. 17, and the shape of the hole of the structural reinforcement member into which the elastic member 22 fits is also the same. . Further, as shown in FIG. 18, the outer shape of the elastic member 22 may be circular, and the shape of the hole of the structural reinforcement member into which the elastic member 22 is fitted may be the same shape.

  As shown in FIGS. 19 and 20, the storage cap 234 may be formed integrally with the fastening member 25. The storage cap 234 in this example has a cylindrical protrusion 235 around the center hole, and the protrusion 235 is configured to fit into the center hole of the elastic member 22. Other configurations are the same as those shown in FIGS. Since the storage cap 234 is integrated with the fastening member 25, the shearing force applied to the fastening member 25 can be reduced when an impact force is applied due to an earthquake or the like. Moreover, since the number of independent components can be reduced, there is an advantage that the management of components is easy and the work at the time of construction is facilitated.

From the images of the embodiments shown in the drawings, the thickness of the structural reinforcement tool is thin and the elastic member also appears thin. However, the structural reinforcement tool and the elastic member have a certain thickness because they are used for reinforcement of buildings and the like. In some cases, the elastic member can sufficiently exhibit its characteristics.
When the fastening member made of a bolt or the like and the storage cap are made of metal, particularly when they are made of different metals, electric corrosion occurs due to mutual metal contact, and the predetermined reinforcing strength cannot be maintained over time. It can happen. To prevent this from happening, for example, at least a portion of the fastening member corresponding to the peripheral wall of the hole of the structural reinforcement member may be coated with an insulator such as a resin or covered with a cylindrical insulator. This insulator may be formed of an elastic body. By forming the insulator with an elastic body and tightly closing the holes of the structural reinforcement tool with the elastic body, the inside can be made waterproof and the internal corrosion prevention effect can be enhanced.

  In place of the fastening members made of bolts in each of the illustrated embodiments, anchor bolts are embedded in members to be coupled to each other (in the example of FIG. 1, on the column 10 and beam 11 sides), and the anchor bolts are elastic. The structure reinforcing tool may be fastened to the structure by passing through the center hole of the member or the interposed member and screwing the nut into the anchor bolt from the tip, that is, from the front side of the structure reinforcing tool. The anchor bolt and nut serve as a fastening member.

It is a front view which shows Example 1 of the structure reinforcement tool concerning this invention. It is sectional drawing which shows the principal part of the said Example 1. FIG. It is a front view which shows Example 2 of the structure reinforcement tool concerning this invention. It is a front view which shows Example 3 of the structure reinforcement tool concerning this invention. It is sectional drawing which shows the principal part of the said Example 3. It is a front view which shows Example 4 of the structure reinforcement tool concerning this invention. It is a disassembled front view which shows the fastening structure concerning each said Example. Example 5 of the structural reinforcement tool concerning this invention is shown, (a) is a longitudinal cross-sectional view, (b) is a longitudinal cross-sectional view which expands and shows the principal part. FIG. 9 shows a sixth embodiment of a structural reinforcement tool according to the present invention, in which (a) is a front view showing examples of the structural reinforcement tool and a sheet-like elastic member, and (b) is a structural reinforcement tool attached to the structure. (C) is a side view showing a state where the structural reinforcement tool is fastened to the structure, and (d) is a front view showing a state where the structural reinforcement tool is fastened to the structure. is there. Example 7 of the structural reinforcement tool concerning this invention is shown, (a) is sectional drawing of the principal part, (b) is a front view. It is an exploded section front sectional view showing an example of an attachment member of a structure reinforcing implement concerning the present invention. It is front sectional drawing of an Example same as the above. (A) which can be used for the said Example is a bottom view of a storage cap, (b) is a bottom view of an elastic member, (c) is a front view of a storage cap and an elastic member. FIG. 6 is another example of a storage cap and an elastic member that can be used in the above embodiment, in which (a) is a bottom view of the storage cap, (b) is a bottom view of the elastic member, and (c) is a front view of the storage cap and the elastic member. FIG. It is a disassembled sectional front sectional view which shows another Example of the attachment member of the structure reinforcement tool concerning this invention. It is front sectional drawing of an Example same as the above. It is a bottom view of the storage cap which can be used for the said Example. It is a bottom view which shows another example of the storage cap which can be used for the said Example. It is a disassembled sectional front sectional view which shows another Example of the attachment member of the structure reinforcement tool concerning this invention. It is front sectional drawing of an Example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Column 11 Beam 20 Structure reinforcement 21 Hole 22 Elastic member 23 Storage cap 25 Fastening member 26 Interposition member 30 Sheet-like elastic member 31 Protrusion part 50 Sheet-like elastic member 51 Protrusion part 60 Foundation 61 Base 212 Deformed hole 222 Elastic member 223 Elastic member 224 Elastic member 250 Fastening member 251 Storage cap 262 Interposing member

Claims (4)

A structure reinforcing tool that reinforces the bonding strength between members to be bonded to each other in the structure,
Has a plurality of holes formed so as to correspond to the member to be the binding,
A ring-shaped elastic member fitted into the hole;
A storage cap for covering the elastic member from outside and confining it in the hole;
And a fastening member which structures brace fastened to the member to be the coupling through the storage cap penetrates the center hole of the elastic member and the storage cap,
The structural reinforcing tool according to claim 1, wherein the hole is a deformed hole, and the outer shape of the elastic member fills the deformed hole and is prevented from rotating.   The structural reinforcement tool according to claim 1, wherein an interposition member is fitted on the inner peripheral side of the elastic member.   3. The structural reinforcement tool according to claim 2, wherein the outer shape of the interposition member fills the inner periphery of the irregularly shaped elastic member and is prevented from rotating. The structural reinforcement tool according to claim 1 , 2 or 3, wherein the storage cap is formed integrally with the fastening member .

Images