JP2006169921A - Reinforcing member and reinforcing structure of building or structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To absorb and damp force, when compressive force or expansion force is applied between structural materials for particularly constituting a connection, by easily arranging a reinforcing structure in a short time, without requiring a special technology, not only in the connection having a normal angle but also in a part of a deformed angle of the connection, in a connecting structure in a wooden building or structure. <P>SOLUTION: A reinforcing member is composed of a synthetic resin foam body member 2 and an extending member 24 having a belt part 3 and a fixing part 4, and is arranged in the connection formed of a structural material 11 and a structural material 12. When the compressive force is applied between the structural materials, the compressive force is mainly absorbed and damped by the synthetic resin foam body member 2, and when tension force is applied between the structural materials, the tension force is mainly absorbed and damped by the belt part 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The reinforcing member and the reinforcing structure of the present invention are applied to structural materials such as columns, studs, foundations, beams and trunk differences in wooden frame buildings, and structural materials such as square members in wooden frame wall construction buildings. And is used for construction of buildings or buildings with earthquake resistance. The reinforcing member of the present invention is used for constructing the above reinforcing structure.

In recent years, the need for earthquake resistance in wooden buildings or structures has become increasingly deeply understood and highly interested. Therefore, when constructing a new wooden building or building (hereinafter simply referred to as a building. In the present invention, the term “building” includes the meaning of a building unless otherwise specified). There is a desire to build buildings with better earthquake resistance. Also, in existing buildings, there are an increasing number of cases where reinforcement work is performed in order to increase earthquake resistance.
Furthermore, there is a case where it is necessary to quickly reinforce a building damaged by an earthquake or a typhoon. In particular, in the event of a major earthquake, the building may collapse due to the effects of subsequent aftershocks, etc., so residents may be forced to live an uneasy life or be evacuated. In such a situation, it is necessary to reinforce quickly to ensure the safety of the resident and the daily life and the mental stability of the resident.
Accordingly, there is a need for a reinforcing structure that is versatile and economical, and that can be applied to existing or newly built wooden buildings, and a reinforcing member used therefor.

  On the other hand, conventionally, as a reinforcing structure for reinforcing a building, there are structural materials such as columns, studs, foundations, beams and trunk differences in a wooden framed building, and square members in a wooden framed wall construction building. 2. Description of the Related Art A reinforcing structure is known in which a reinforcing material such as a brace or a fire beam is bridged between two structural materials that are in contact with each other in a structural material such as a steel frame or a steel frame in a steel building. As a specific such structure, for example, as shown in FIG. 11, a wooden or metal reinforcing member 103 such as a fire striking material is slanted from the middle of one structural material 101 to the middle of the other structural material 102. There is a reinforcing structure in which both ends are fixed to the structural members 101 and 102 and the building is reinforced.

  The building having the reinforcing structure has improved earthquake resistance as compared with the structure of the building without the reinforcing member. Further, in such a reinforcing structure, a reinforcing structure for further improving the earthquake resistance performance by using a vibration damping structure is known (see, for example, Patent Documents 1 and 2).

  The reinforcing structure described in Patent Document 1 is formed by fixing a reinforcing member made of spring steel from the middle of one structural material (structural material A) to the middle of the other structural material (structural material B). The reinforcing structure described in Patent Document 2 is obtained by fixing a synthetic resin foam in a compressed state in a space formed by the structural material A, the structural material B, and the reinforcing member.

  The reinforcing structures described in Patent Documents 1 and 2 are provided with a reinforcing member made of spring steel, synthetic resin foam, or the like when a force is applied to deform the joint by vibration or shaking such as an earthquake or strong wind. The proof stress that resists deformation of the joint is exhibited, and the force to deform the joint is absorbed and attenuated. As a result, the deformation of the joint is prevented well, and the durability of the building is achieved.

  As a reinforcing structure different from the above, as shown in FIG. 12, a plurality of springs (spring 104, spring 105) are fixed to two structural members, and a space is formed between these springs. There is known a reinforcing member in which a metal member 106 is provided for connecting each other and giving strength, and the space is filled with a foamed resin body 107 (for example, Patent Document 3). If it is a reinforcement structure using the reinforcement member of patent document 3, even when the vibration and shaking which are added to a building become large, there exists a damping effect for following a joint deformation. In addition, after a reinforcing member formed to match the normal joint angle is installed, when a force that deforms the joint angle acts on the structural material, it resists this force and suppresses the angle deformation. Also, the effect of restoring the original normal angle is exhibited.

  Each of the conventional reinforcing structures described above has a main structure of a reinforcing member (for example, spring steel or the like) that is bridged between two structural members of a building and both ends thereof are fixed to the respective structural members. A rigid member is used for the main structure, which includes elements that improve the strength of the reinforcing structure and enable support between structural members.

JP 2003-96911 A JP 2003-20729 A Japanese Patent Application No. 2004-171810

  By the way, when a disaster is caused by a large earthquake or a typhoon, a framework of a wooden building made of a structural material may be residually deformed. In such a residual deformed building, the angle of the joint formed by the two structural members is deformed as compared with a normal angle planned at the time of design (hereinafter also simply referred to as “normal angle”). A spot is observed. The deformation of the joint angle may be deformed by expanding beyond a normal angle or may be deformed by narrowing. In addition to buildings that have been damaged, buildings that have passed several years after construction have two different structures as described above, although there are differences due to the effects of wind and rain, minor earthquakes, or the weight of the building materials themselves. The angle of the joint formed by the material may be deformed compared to the normal angle immediately after construction. As described above, when the joint angle is deformed as compared with the normal angle, the proof stress in the vertical direction or the horizontal direction is reduced. Therefore, it is necessary to reinforce immediately. In particular, as described above, after a disaster such as an earthquake, it is desirable to reinforce it by a simple and quick method in preparation for a subsequent aftershock or the like.

  However, any of the above-described conventional reinforcing structures is formed by fixing a strong member between structural members. Therefore, it is not easy to deform this strong reinforcing member by extending or compressing its shape with a simple tool by human power. Therefore, it is not easy to install the conventional reinforcing member formed in conformity with the angle of the normal joint by extending it to the correct attachment position at the location where the joint is deformed to be wider than the normal angle. . Alternatively, it is not easy to install a conventional reinforcing member that is formed in accordance with the normal joint angle at a location where the joint is deformed narrower than the normal angle. For the reasons described above, the conventional reinforcement structure can be used without requiring special techniques in a short period of time, particularly when urgent reinforcement is required in a wooden building that has undergone residual deformation after a disaster. It is difficult to implement.

  Furthermore, in the reinforcement structure using a metal member among the conventional reinforcement structures, the weight of the reinforcement member is considerably heavy, and the weight may be a burden during transportation or installation work, and the handling property may be lowered.

  Therefore, the present invention reinforces the structure of the building, imparts earthquake resistance, prevents the joint angle of the structural material from being deformed, and restores the deformed joint angle to a normal angle. Reinforcing structure that can apply force to the reinforcing structure that can be formed easily and in a short time even in an existing wooden building with a deformed joint angle, and the reinforcement that is used in the reinforcing structure An object is to provide a member.

The present invention
(1) A reinforcing member for reinforcing between the structural material A and the structural material B forming a joint in a building or a building, having a fixing portion for the structural material at both ends, and a fiber between the fixing portions A bridge member formed with a belt portion formed from a side surface A in contact with the structural material A, a side surface B in contact with the structural material B, and a side surface C in contact with the bridge member. A reinforcing member for a building or building, comprising a synthetic resin foam member,
(2) At least in a portion where the belt portion and the synthetic resin foam member are in contact, the side surface C of the synthetic resin foam member is convex in the direction opposite to the corner formed by the side surface A and the side surface B. The building or the reinforcing member for a building according to the above (1), characterized by being curved
(3) The reinforcing part of the building or the building according to (2) above, wherein the convexly formed portion of the side surface C is an arc drawn with a radius of 100 cm to 2000 cm. Element,
(4) The angle formed from the side surface A and the side surface B of the synthetic resin foam member is equal to the angle of the joint formed from the structural material A and the structural material B at the time of designing the building or the building. The building or the reinforcing member for a building according to any one of (1) to (3), wherein the reinforcing member is formed at an angle,
(5) The tensile strength of the belt portion is 980N or more and 49kN or less, and the elongation is 3% or more and 20% or less, according to any one of (1) to (4), And (6) a reinforcing structure in which a reinforcing member is fixed between the structural material A and the structural material B that form a joint in the building or building, the reinforcing member However, it has a fixing part for the structural material at both ends and a bridging member formed with a band part formed of fibers between the fixing parts, a side surface A in contact with the structural material A, and a structural material B A synthetic resin foam member having a side surface B and a side surface C in contact with the bridging member, and a gap between the structural material A and the structural material B between the synthetic resin foam member. Side surface of the synthetic resin foam member that is installed without any And the bridge member is in contact with each other, and the bridge member is formed by being fixed to the structural material A and the structural material B via the fixing portion. Reinforcement structure,
Is a summary.

  The reinforcing structure of the present invention fixes a reinforcing member including a synthetic resin foam member that can be compressively deformed between structural members and a bridging member that has an extendable band between two structural members that form a joint. The structure which becomes is adopted. As a result, when a compressive force is applied between the two structural members, the synthetic resin foam can be compressed and deformed to absorb and attenuate the compressive force. When an extension force is applied between the materials, the extension of the band portion can absorb and attenuate the extension force. As a result, it is possible to suppress the joint deformation of the building and apply a force in a direction to restore the joint whose shape has been deformed to a normal position. Therefore, it is possible to resist the displacement of the structural material caused by the stress applied to the building in the horizontal direction or the vertical direction so as to maintain the normal joint angle, and to quickly return the deformation to the original state. It is. In addition, this makes it possible to quickly converge and reduce the shaking of the building. When used in a wooden building, the reinforcing structure of the present invention can prevent large damages such as major damage and collapse.

  Moreover, the strip | belt-shaped object formed from a fiber is employ | adopted for the strip | belt part in the reinforcement member of this invention as a member which exhibits the effect | action which absorbs and attenuate | damps the extension force concerning two structure materials. Therefore, if it is the reinforcing member of the present invention provided with the above-mentioned belt part, it can be extended by human power or only using a simple tool. As a result, when the reinforcing member of the present invention manufactured according to a normal joint angle is used in a place where the joint angle is deformed, it is easily desirable to use a simple tool such as a metal lever. Can be installed. Therefore, the reinforcing member of the present invention can be easily used not only in a newly-built wooden building, but also in a wooden building in which the joint angle is deformed, and is excellent in versatility. In particular, when urgent reinforcement is required after a disaster such as an earthquake or typhoon, special techniques and skills are required if the reinforcing structure and the reinforcing member of the present invention are excellent in installation ease and light weight. Construction is possible without necessity.

  Furthermore, as described above, the main part of the bridging member of the present invention is not a metal member such as spring steel as in the prior art, but is a band, so it is very light compared to the prior art. Therefore, if it is a reinforcing member of the present invention provided with the above-mentioned bridging member, the burden at the time of transportation and installation work is reduced as compared with the conventional one, the handling property is excellent, and the installation time can be shortened as compared with the conventional one. . In particular, when a building after a disaster is urgently reinforced, it is desired to quickly transport the stocked reinforcement members to the reinforcement site. On the other hand, the lightweight reinforcing member of the present invention can be quickly transported by a two-wheeled vehicle or by human power, regardless of transportation means, even in a stricken area where the transportation environment has deteriorated.

  Furthermore, since the reinforcing structure of the present invention has high durability of the member, maintenance is not required, and there are no restrictions on mounting conditions, etc., the reinforcing member is also used in combination with other reinforcing materials (for example, splints or splints). The strength of the can be ensured. In addition, the reinforcing structure of the present invention is low in cost and has little economic burden when stocking in preparation for a future disaster.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 shows a reinforcing member of the present invention comprising a synthetic resin foam member 2 and a bridging member 24 having a band portion 3 and a fixing portion 4, and a structural member 11 (structural member A) of a wooden building. 2 is a cross-sectional view showing a reinforcing structure 1 of the present invention formed by being installed between structural materials 12 (structural materials B). The reinforcing structure 1 is in contact with the side surface of the structural material 11 and the side surface 8 (side surface A) of the synthetic resin foam member 2, and the side surface of the structural material 12 and side surface 9 (side surface B) of the synthetic resin foam member 2. In addition, the bridge member 24 and the side surface 10 (side surface C) are installed in contact with each other through the insertion hole 6 formed in the fixing portion 4 and the insertion hole 7 formed in the synthetic resin foam member 2. The fastener 5 is fixed to the structural material 11 and the structural material 12 by being fastened to the structural material 11 and the structural material 12. At this time, it is desirable to provide the fastener holes S in the structural material 11 and the structural material 12 in advance, and insert the fastener 5 with the fastener holes S and the insertion holes 6 and 7 aligned. The synthetic resin foam member 2 can absorb the compressive force applied between the structural material 11 and the structural material 12, and the band 3 can absorb the stretching force applied between the structural material 11 and the structural material 12.

The compression force is a force that acts in a direction in which the angle of the joint at the intersection of the structural material 11 and the structural material 12 is narrower than the normal angle planned at the time of design. The compression force includes a force that compresses and deforms the structural material itself, particularly at the joint portion between the structural materials, and deforms the joint in a direction narrower than a normal angle, or the structural material is bent (that is, bent). Including the force to deform the joint in a direction narrower than the normal angle.
The extension force is a force that acts in a direction in which the angle of the joint at the intersection of the structural material 11 and the structural material 12 is wider than the normal angle planned at the time of design. The extension force includes a force that compresses and deforms the structural material itself, particularly at the joint portion between the structural materials, and deforms the joint in a direction wider than a normal angle, or a bending of the structural material (that is, bending). It includes a force that deforms the joint in a direction that expands from a normal angle.
More specifically, for example, when the structural material 11 is a pillar in a wooden building and the structural material 12 is a foundation in a wooden building, the normal angle of the joint composed of the pillar and the foundation is Generally 90 degrees. On the other hand, the force acting in the direction in which the angle is smaller than 90 ° is referred to as compression force, and the force acting in the direction in which the angle is greater than 90 ° is referred to as extension force.

Further, in the present invention, the direction in which the angle of the joint at the portion where the structural members 11 and 12 intersect is deformed in a direction wider than the normal angle is referred to as the “extension direction” of the band portion 3. Contrary to the extension direction, the direction in which the structure material is deformed and deformed in a direction in which the joint angle of the portion where the structure materials 11 and 12 intersect is narrower than the normal angle is compressed with a synthetic resin foam. This is referred to as the “compression direction” of the body member 2.
In the present invention, the term “joint” refers to a joint portion when two wooden structural members are joined at a right angle or at an angle, and the reinforcement member of the present invention is particularly planned to be installed. This means the connecting part on the other side. Further, in the present invention, the “joint angle” refers to the angle of the corner formed on the side on which the reinforcing structure of the present invention is planned to be installed in the joint formed by the two structural members.

  The operation of the reinforcing structure 1 when a compressive force is applied between the structural materials will be described with reference to FIG. When a compressive force acts between the structural material 11 and the structural material 12 and the structural material 11 is inclined in a direction that narrows the angle of the joint, the synthetic resin foam member 2 is compressed and deformed, and the compressive force is absorbed. Attenuated. At the same time, due to the repulsive force of the synthetic resin foam member 2 with respect to the compression force, a force is applied in the direction in which the structural material 11 returns to the original position. As a result, it is possible to prevent the joint angle of the portion where the structural material 11 and the structural material 12 intersect from being deformed in a direction narrower than a normal angle.

  Further, the operation when the reinforcing structure of the present invention is implemented in a place where the compressive force has already been applied between the structural materials and the joint angle has been narrowed and deformed from a normal angle will be described below. In such a case, the synthetic resin foam member 2 formed with the angle of the angle formed by the side surface 8 and the side surface 9 being equal to the normal angle of the joint, and the bridging member 24 manufactured in accordance therewith. And the synthetic resin foam 2 is installed so as to be pushed into the narrowed joint portion, thereby forming the reinforcing structure of the present invention. As a result, when installed, the synthetic resin foam member 2 is in a compressed state, and a repulsive force is generated in the synthetic resin foam 2. And by this repulsive force, force is given in the direction where the joint whose angle is deformed is restored to a normal angle.

  Next, the operation of the reinforcing structure 1 when an extension force is applied between the structural materials will be described with reference to FIG. As shown in FIG. 3, when a stretching force acts between the structural material 11 and the structural material 12 and the structural material 11 is inclined in a direction in which the joint angle is widened, the band portion 3 is stretched and the stretching force is absorbed. Is attenuated. At this time, the belt 3 is stretched, and at the same time, a force is generated to move toward the closing direction. Then, the side surface 10 of the synthetic resin foam member 2 in contact with the band portion 3 receives a pressure from the band portion 3 and compressively deforms and gives a repulsive force to the band portion 3. The stretching force is also absorbed and attenuated by the action of the synthetic resin foam member 2. As a result, it is possible to prevent the joint angle of the portion where the structural material 11 and the structural material 12 intersect from being deformed in a direction wider than a normal angle.

  In addition, the operation when the reinforcing structure of the present invention is implemented in a place where an extension force has already been applied between the structural members and the joint angle has been expanded and deformed from a normal angle will be described below. In such a case, the synthetic resin foam member 2 formed with the angle of the angle formed by the side surface 8 and the side surface 9 being equal to the normal angle of the joint, and the bridging member 24 manufactured in accordance therewith. , The synthetic resin foam 2 is placed on the joint portion having a wide angle, and the fastener is inserted with the insertion hole 6, the insertion hole 7 and the fastener hole S being aligned with each other, thereby reinforcing the present invention. Form a structure. As a result, when installed, the band 3 in the bridging member 24 is in an extended state. A force is applied in a direction in which the joint with the deformed angle is restored to a normal angle by the force with which the belt portion 3 tries to return to the original length.

  In particular, at least in a portion where the belt portion 3 and the synthetic resin foam member 2 are in contact with each other, the side surface 10 of the synthetic resin foam member 2 is convex in the direction opposite to the corner formed by the side surface 8 and the side surface 9. By being curved in the shape, the action of absorbing and attenuating the stretching force can be exhibited more satisfactorily. That is, when the extension force is transmitted to the band portion 3 due to the presence of the convexly curved portion on the side surface 10 as described above, the two fixing portions 4 positioned at both ends of the band portion 3 are transmitted. And the three points of the top of the convex shape in the synthetic resin foam member 2 are the fulcrums of the band portion 3. On the other hand, in the synthetic resin foam member 2 in which the side surface 10 is formed in a linear shape, the fulcrum of the band portion 3 is only two points at both ends. Here, when the same extension force is transmitted to the belt 3 having two fulcrums and the belt 3 having three fulcrums, the belt 3 having three fulcrums Stretches well. Further, the band portion 3 tends to move in the closing direction simultaneously with expansion, and at this time, a strong pressure can be applied to the synthetic resin foam member 2 around the vertex of the convex shape. The synthetic resin foam member 2 that has received a strong pressure from the band portion 3 is compressed and deformed, and a repulsive force against the pressure is generated in the compressed and deformed portion. From the series of actions in the stretch of the belt portion 3 and the repulsive force generated by the synthetic resin foam member 2, the absorption and damping action more excellent in the stretch force is exhibited.

  Therefore, if the reinforcing structure of the present invention is formed using the reinforcing member of the present invention, the synthetic resin foam member 2 and / or the belt portion even if a compression force or an extension force acts between the structural materials as described above. By the action of 3, the action of repeatedly absorbing and attenuating the compression force or the extension force works, and the action of maintaining the normal angle of the joint occurs.

Next, the synthetic resin foam member 2 formed by providing the corner formed by the side surface 8 and the side surface 9 at the same angle as the normal angle of the joint formed by the structural material 11 and the structural material 12 was used. A method of forming the reinforcing structure 1 of the present invention in the case will be described.
When the reinforcing structure of the present invention is formed at a location where the angle of the joint of the structural material 11 and the structural material 12 shows a normal angle, a gap is formed in the synthetic resin foam member 2 in the above-mentioned joint. It can be easily formed by pressing so that the insertion hole 6, the insertion hole 7, and the fastener hole S are aligned, and a fastener 5 such as a screw screw is inserted and fixed to the structural material. .
On the other hand, when the joint formed by the structural material 11 and the structural material 12 is deformed in a direction narrower than a normal angle, first, as shown in FIG. The splint 13 is fixed at a position slightly farther from the length of the side surface 9 than the joint formed from the structural material 12. Next, the synthetic resin foam member 2 and the bridging member 24 are placed between the structural material 11 and the structural material 12 in an overlapped state, and a force is applied in the direction of the arrow 14 at the end of the side surface 10 to The reinforcing member of the present invention is installed so as to be pushed between the members 12. At this time, if a simple tool such as a gold lever is used, a force can be easily applied to the reinforcing member. After that, as shown in FIG. 4 b, the insertion hole 6, the insertion hole 7, and the fastener hole S are made to coincide, and the fastener 5 is inserted therein to fix the reinforcing member to the structural material 11 and the structural material 12. Thus, the reinforcing structure 1 of the present invention can be formed. However, the method of forming the reinforcing structure 1 of the present invention is not limited to the above. The reinforcing structure 1 of the present invention is installed between the structural material 11 and the structural material 12 with no gap between the side surface 8 and the structural material 11 and between the side surface 9 and the structural material 12 in the structural material of the present invention. It is important that the bridging member 24 is fixed to the structural material through the fixing portion 4. Therefore, any method can be employed as the method for forming the reinforcing structure 1 of the present invention as long as the structural material of the present invention is fixed in such a state. The splint 13 may be removed after the reinforcing structure 1 is formed. Further, the clasp 15 may be installed on the structural material 11 and the structural material 12 in contact with the fixed portion. The installation of the clasp 15 is preferable because it is possible to satisfactorily prevent the fixing portion 4 from being displaced or the fastener 5 from being detached or deformed when a compressive force or an expansion force is applied to the structural material.

  In the reinforcing structure 1 of the present invention formed on the basis of the above, it is important that the band part 3 is installed in the reinforcing structure 1 without bending in order to allow the band part 3 to absorb the stretching force satisfactorily. It is. In particular, the belt 3 is preferably installed with a tension of 147N or more, more preferably a tension of 245N or more, and even more preferably a tension of 294N or more. . By installing the belt portion 3 in a state where a certain tension is applied, the stretching force applied between the structural materials is transmitted well to the belt portion 3, the belt portion 3 stretches well, and the stretching force is absorbed well. It is preferable because it can be attenuated. If only the long-term proof stress of the belt part 3 is considered, it can be installed with a tension of 147N or more and 1.96kN or less. However, it is desirable to install the reinforcing structure 1 in a state where a tension of 392 N or less is applied to the belt portion 3 so that the reinforcing structure 1 can be easily and quickly installed using only a simple tool.

  In order to obtain a preferable tension at the time of installation of the band part 3, the length of the band part before installation is set to s, and the longitudinal distance of the portion in contact with the band part on the side surface C of the synthetic resin foam member 2 is set to t. In this case, it is desirable to manufacture in advance such that s is 90% or more and 99% or less with respect to t (that is, s is slightly shorter than t). When installing between the structural materials, one end of the bridging member 24 provided with the band 3 is first fixed to the structural material, and then the other end is pulled and fixed to the structural material together with the synthetic resin foam member 2 By doing so, it is possible to install the band 3 in a state where the desired tension is applied. Therefore, the tension of the band 3 at the time of installation can be set by adjusting the s and the t in advance. As described above, in the reinforcing structure 1 that is installed in a state in which a preferable tension is applied to the belt portion 3, the stretching force applied between the structural members is well transmitted to the belt portion 3, thereby absorbing the stretching force described above. The damping effect is exhibited well.

  In the present invention, the term “structural material” refers to structural materials such as columns, studs, foundations, beams, and trunk differences in wooden frame buildings, or structural materials such as square members in wooden frame wall construction buildings (perpendicular to the ground). In addition, it means not only a structural material provided in parallel, but also a structural material provided with an inclination angle found in the back of a hut, for example. Therefore, the reinforcing structure of the present invention can be formed at the joint at the portion where any two of the structural materials are in contact. For example, as shown in FIG. 5, the reinforcing structure 1 of the present invention can be formed at the joint formed by the pillar 16, the pillar 17, the beam 18, and the base 19. As another embodiment, as shown in FIG. 6, the reinforcing structure of the present invention can be formed at the joint formed by the rafter 20 and the shed bundle 21 in the structure of the shed. Further, the reinforcing structure 1 of the present invention can be formed not only on a vertical surface such as a wall surface but also on a horizontal surface such as a floor surface or a ceiling surface or a joint on an inclined surface.

  With the reinforcing structure 1 of the present invention having the above-described configuration, an action of absorbing and damping a compressive force and an action of absorbing and dampening an extension force are exhibited. Moreover, the force which restores in the direction which shows the original normal angle with respect to the deformation | transformation of the angle of a joint can be provided. Furthermore, it can be installed and formed easily and quickly without requiring special skill. Therefore, with the reinforcing structure 1 of the present invention, the effect is very effectively exhibited particularly when the building needs to be reinforced immediately in an emergency disaster or the like. For example, in a wooden building damaged by an earthquake, a typhoon, or the like and having undergone residual deformation, one or a plurality of rooms are arbitrarily selected (a room facing the ground is preferable), and the selected room is configured. By forming the reinforcing structure of the present invention in the joint formed by each structural material such as a base, a pillar, and a tension, it is possible to use the selected room as an erection shelter.

Below, the structure of the reinforcement member 23 used for the reinforcement structure 1 of this invention is demonstrated in detail. As shown in FIG. 7, the reinforcing member 23 of the present invention includes the synthetic resin foam member 2 and a bridging member 24 independent of the synthetic resin foam member 2. The synthetic resin foam member 2 has a side surface 8 (side surface A) and a side surface 9 (side surface B) in contact with the structural material, and a side surface 10 (side surface C) in contact with the bridging member 24. It is desirable that the angle formed from the side surface 8 and the side surface 9 is the same angle as the normal angle of the joint between the two structural members to be installed. On the other hand, the bridging member 24 is formed to have the band part 3 and the fixing parts 4 positioned at both ends of the band part 3. Any method may be adopted as a method of connecting the band portion 3 and the fixing portion 4 as long as the connecting portion 26 capable of withstanding an extension force can be formed. For example, as shown in FIG. 7, the band portion through hole 25 is provided in the fixing portion 4, the end portion of the band portion 3 is folded back to this, and the folded portion is sewn to the main body of the band portion 3 to form the coupling portion 26. can do. Other methods include a method of bonding the folded portion of the band 3 to the band 3 main body, a method of fusing, and the like. However, from the viewpoint of the reliability of strength and the effect of maintaining a good bonded state for a long period of time, a method of forming the connecting portion 26 by sewing is desirable.
When forming the reinforcing structure 1 of the present invention using the reinforcing member 23 of the present invention, the synthetic resin foam member 2 and the bridging member 24 may be overlapped and installed between the two structural members. Therefore, it is desirable that the contact surface between the fixed portion 4 and the side surface 10 in contact with the fixed portion 4 is formed in the same shape. Further, as shown in FIG. 7, the synthetic resin foam member 2 and the bridging member 24 are independent, but when installed between the structural materials, they may be integrated in advance with an adhesive tape or the like. .

  The reinforcing member of the present invention is not limited to the shape shown in FIG. For example, in addition to the reinforcing member 23 shown in FIG. 8a (the same mode as FIG. 7), the reinforcing member 23 having the shape shown in FIG. 8b, FIG. 8c, or FIG. In particular, on the side surface 10 of the synthetic resin foam member 2 constituting the reinforcing member 23, the surface in contact with the band portion 3, as in the synthetic resin foam member 2 shown in FIG. 8 a, FIG. 8 b, or FIG. It can be formed as a curved surface c that curves convexly in a direction opposite to the angle formed from the side surface 9. According to this, when the reinforcing force is applied after the reinforcing structure is installed between the structural members, the belt portion 3 is in good contact with the curved surface c and stretches favorably, and the stretching force is favorably absorbed. .

  The curved surface c in the side surface 10 is preferably formed by drawing an arc showing a radius R of 100 cm or more and 2000 cm or less, more preferably an arc showing a radius R of 200 cm or more and 1000 cm or less, and 300 cm or more and 700 cm. It is more preferable that the arc has a certain radius R. By forming the synthetic resin foam member having the radius R in the preferred range, the belt portion 3 can be satisfactorily stretched when the stretching force is applied between the structural members, and the stretching force can be absorbed. Done well. The radius R in the side surface 10 can be appropriately determined according to the structure of the place where the reinforcing structure 1 of the present invention is implemented, the scale of the wooden building, and the dimensions of the synthetic resin foam member 2. However, if the radius R is less than 100 cm, the curve of the curved surface c becomes too tight, too much force is applied to the three fulcrums, and the fixing member 4 is strongly pulled and may float or come off. On the other hand, when the radius R exceeds 2000 cm, the curve of the curved surface c becomes too loose, and it is difficult to apply the pressure of the band 3 to the convex apex well on the material in which the stretching force is generated. It is difficult to obtain a repulsive force by appropriately compressing and deforming the member 2.

  Further, like the synthetic resin foam member 2 shown in FIGS. 8 a and 8 b, when the reinforcing member is installed between the structural members at the end of the side surface 10, it is perpendicular to the structural members 11 and 12. An upright vertical surface a can be formed. Accordingly, as described above with reference to FIG. 4A, when the reinforcing member is fitted and installed between the structural members, it is easy to apply a force pushing the reinforcing member, and a tool such as a metal lever can be stably applied. This is desirable. Moreover, not only in the case shown in FIG. 4a, in order to install the synthetic resin foam in the reinforcing member of the present invention between the structural materials in a properly compressed state, the vertical surface a is formed, It is desirable to easily apply pressure to the synthetic resin foam.

  The dimensions in the longitudinal direction of the side surface 8 and the side surface 9 in the synthetic resin foam member 2 can be appropriately determined according to the place where the present invention is implemented, the scale of the building, and the like. The dimension in the longitudinal direction of the side surface 8 and the side surface 9 is preferably 25 cm or more and 90 cm or less, more preferably 30 cm or more and 50 cm or less. If the length of the side surface is less than 25 cm, the overall size of the reinforcing structure becomes too small, and a reinforcing structure formed using this may not provide a sufficient reinforcing effect. In the reinforcing structure 1 using the synthetic resin foam member 2 having a side dimension of 90 cm or more, a greater reinforcing effect can be obtained. However, since each member becomes large, handling property at the time of transportation and installation is lowered, and this is not desirable particularly when the installation is urgently required after a disaster. In the present invention, a high-attenuation rubber sheet can be attached to the side surface 8 and / or the side surface 9 in advance. A higher vibration damping effect can be exhibited by installing the synthetic resin foam member 2 to which the high damping rubber sheet is attached between the structural members. The thickness of the high damping rubber sheet is about 1 to 5 mm, preferably about 2 to 3 mm. A thickness of 1 mm or more is preferable because a high damping effect can be expected. Further, when the thickness is 5 mm or less, the synthetic resin foam member 2 having the rubber sheet is placed between the structural materials even when the area of the rubber sheet is smaller than the area of the side surface 8 or the side surface 9. This is preferable because the resin foam member 2 and the structural material can be installed and fixed without substantially generating a gap.

In order to fix the reinforcing member of the present invention to the structural material, as shown in FIGS. 8a and 8b, an insertion hole 6 can be formed in the fixing portion, and an insertion hole 7 can be formed in the synthetic resin foam member. As another embodiment, as shown in FIGS. 8c and 8d, the insertion hole 6 can be provided in the fixing portion, and the synthetic resin foam member can be formed without the insertion hole. In order to insert the fastener 5 into the insertion hole 6 and the insertion hole 7 and fix the reinforcing member to the structural material, it is desirable that the fastener 5 is secured at an angle perpendicular to the structural material. . Therefore, it is desirable that the insertion hole 6 and the insertion hole 7 be provided on the surface of a member positioned in parallel with the structural material when installed between the structural materials. In addition, it is desirable that a fastener hole S is provided in advance in the structural material 11 and the structural material 12 corresponding to the insertion hole 6 and the insertion hole 7. The presence of the fastener hole S on the structural material in advance facilitates the alignment of the insertion hole 6 and the insertion hole 7. Further, if a fastener having a large diameter is directly inserted into a wooden structural material, there is a risk that the structural material will break, but if the fastener hole S is provided in advance, this risk can be avoided.
In particular, as shown in FIGS. 8a and 8b, the fastener 5 is fastened to the structural material via the insertion hole 6 and the insertion hole 7, so that the synthetic resin foam member 2 is more stably and closely connected between the structural materials. Can be installed. As a result, the compressive force is preferably transmitted to the synthetic resin foam member 2, which is desirable.

  Furthermore, as shown in FIG. 8a, on the side surface 10, a vertical surface a that stands vertically from the structural material, a parallel surface b that is continuous with the vertical surface and is formed in parallel with the structural material, and a curved surface c. In the meantime, an inclined surface d formed at an arbitrary angle with respect to the structural material can be formed. According to this, an extension force is applied to the reinforcing structure installed between the structural members, and when the belt portion 3 extends, the load applied to the fixing portion 4 and the fastener 5 can be reduced, and the fastener 5 Is desirable because it is prevented from being deformed or pulled out.

  As the resin forming the synthetic resin foam member 2, the following synthetic resins are used. Styrene homopolymer resin, styrene copolymer resin produced from styrene and other monomers, styrene homopolymer resin or / and mixture of styrene copolymer resin and styrene-butadiene block copolymer A rubber-modified styrene resin (impact polystyrene) obtained by polymerizing a styrene monomer in the presence of a rubber-like polymer, or the above-mentioned styrenic resin and other resin or / and a rubber-like polymer A polystyrene-based resin or polystyrene-based resin composition having a styrene component ratio of 50% by weight or more, such as a mixture of ethylene, an ethylene homopolymer resin, an ethylene copolymer resin produced from ethylene and another monomer, ethylene Homopolymer resin and / or ethylene copolymer resin impregnated with vinyl monomer such as styrene monomer A polyethylene-based resin or polyethylene having an ethylene component ratio of 50% by weight or more, such as a graft-modified ethylene resin obtained by polymerization, or a mixture of the above-mentioned ethylene-based resin with another resin or / and a rubber-like polymer Propylene homopolymer resin, propylene copolymer resin produced from propylene and other monomers, propylene homopolymer resin or / and propylene copolymer resin such as styrene monomer Polypropylene having a propylene component ratio of 50% by weight or more, such as a graft-modified propylene resin obtained by impregnating a vinyl monomer and polymerizing, or a mixture of the propylene resin and another resin or / and a rubbery polymer. Resin or polypropylene resin composition; thermoplastic polyester resin; polycarbonate Fats; polyamide resin; polyphenylene ether resin; or a mixture of two or more resins mentioned above, and the like. The synthetic resin foam is obtained by foaming the above resin by a known foaming means.

  The thickness of the synthetic resin foam member 2 used for the reinforcing member of the present invention can be appropriately changed according to the structure of the building. The thickness of the synthetic resin foam member 2 (the dimension in the direction of reference numeral 50 in FIG. 9) is 20% or more and 120% or less with respect to the thickness of the structural material to be attached (the dimension in the direction of reference numeral 50 in FIG. 9). It is more preferable that it is 30% or more and 100% or less, and the thickness is preferably 50 to 200 mm. When the thickness of the synthetic resin foam member 2 is less than 20% with respect to the thickness of the structural material, the compressive force cannot be favorably absorbed when installed on the structural material, and on the other hand, the thickness is set to 120% or less. Therefore, it is preferable because the compression force can be absorbed efficiently and no economic disadvantage occurs. In addition, the thickness of the synthetic resin foam member 2 can be formed to be 50% or less of the thickness of the structural material, and a plurality of them can be arranged in parallel to be installed on the structural material.

The synthetic resin foam member 2 is desirably fixed in a compressed state when installed between two structural members. If it is the synthetic resin foam member 2 in a compressed state, the compressive force applied between the structural materials is efficiently transmitted to the synthetic resin foam member 2, and the compressive force can be absorbed and attenuated satisfactorily. Moreover, when the building receives stress, the effect of reducing the shaking of the building and the effect of absorbing the shaking of the building and reducing the shaking early are exhibited well. Furthermore, there is an advantage that there is no gap between the synthetic resin foam member 2 and the structural material when the structural material such as pillars or beams is thin.
Accordingly, when the reinforcing structure of the present invention is formed in a portion where the joint has a normal angle or a portion in which the deformation of the joint has a small amount of deformation, the bridging member 24 is fixed between the structural members. The volume of the synthetic resin foam member 2 may be formed to be slightly larger than the space volume to be formed, and may be compressed and deformed during installation. For example, the distance from the fastener hole S provided on the structural material to the apex of the corner formed in the joint is x, and the side surface of the synthetic resin foam member 2 is inserted into the insertion hole 7 through the side surface 8 and the side surface 9. When the distance to the apex of the corner to be formed is y, y is formed so as to be about 2 to 10% longer than x, and the fastener hole S, the insertion hole 6, and the insertion hole 7 are set at the time of installation. If they are matched and fixed, the synthetic resin foam member 2 can be installed in a compressed state. On the other hand, when the reinforcing member is used in a portion that is deformed in the direction in which the angle of the joint is widened or in a portion that is deformed in the narrowing direction, the joint in which the corner formed by the side surface 8 and the side surface 9 is installed. If the distance between x and y is set equal to each other and the fastener hole S, the insertion hole 6 and the insertion hole 7 are aligned and fixed, the synthetic resin foam is formed. The member 2 can be installed in an appropriate compressed state.

  The compressible and deformable synthetic resin foam used for the synthetic resin foam member 2 of the present invention preferably has a compressive stress at 5% compression of 2000 kPa or less, more preferably 1500 kPa or less. Further, the lower limit value of the compressive stress during compression is preferably 50 kPa or more, and more preferably 80 kPa or more. If the compressive stress at the time of 5% compression is too small, there is a risk that the function of reducing the shaking and the function of absorbing the shaking and reducing the shaking early will be poor when the building receives stress. .

  Further, when the synthetic resin foam member 2 is fixed in a compressed state and the reinforcing structure 1 is formed, the compression state of the synthetic resin foam member 2 is maintained because the compressed state is maintained over a long period of time. Is preferably 12% or less, and more preferably 10% or less.

  The compression set of the synthetic resin foam member 2 is a value measured according to JIS K 6767-1977. However, the compression speed when compressing 25% of the thickness of the test piece is 10 mm / min. The compression stress at the time of 5% compression is 5 from the compression stress-strain curve obtained by compressing the test piece by 10% from the thickness at the start of the test according to the compression hardness measurement method in JIS K 6767-1977. This is a reading of compressive stress at% compression.

  Polypropylene resin foam (including polypropylene resin composition) is lightweight and can easily be compressed and deformed because the compression stress and compression set at the time of 5% compression are within the specified numerical range. It is one of the most preferable as a synthetic resin foam. Polypropylene resin foams having a compression stress and compression set at the time of 5% compression within the above specified range are, for example, the expansion ratio (J.P. = Density of base resin / apparent density of foam) is 5 to 30 times.

  As the belt portion 3 constituting the bridging member 24, one formed mainly of a woven fabric or a knitted fabric using natural fibers or synthetic fibers can be used. When the belt part 3 is used for the reinforcing structure 1, it is required to exhibit an action of absorbing the extension force. Further, it is desirable that a force to return to the original length when exerted in the stretching direction is exhibited. Accordingly, the tensile strength of the belt part 3 is preferably 980 N or more and 49 kN or less, more preferably 4.9 kN or more and 24.5 kN or less, and further preferably 4.9 kN or more and 19.6 kN or less. When the tensile strength is less than 980 N, it is not desirable because damage such as cutting of the band portion is likely to occur when an extension force is applied between the structural materials. On the other hand, even if it is the belt | band | zone part 3 which shows the tensile strength over 49 kN, there is no problem from an intensity | strength surface. However, when a tensile force strong enough to require a tensile strength exceeding 24.5 kN is applied between the structural members, the fastener 5 may be pulled out or deformed before the band portion 3 is damaged. Therefore, from this viewpoint, the upper limit of the tensile strength of the belt portion 3 is appropriately about 24.5 kN.

  The elongation percentage of the strip 3 is preferably 3% or more and 20% or less, more preferably 3% or more and 10% or less, and further preferably 3% or more and 5% or less. If the elongation is less than 3%, the elongation of the belt portion 3 is small when an extension force is applied between the structural members, and the extension force cannot be absorbed well. On the other hand, if the elongation exceeds 20%, the initial elongation when the stretching force is applied is large, which increases the initial deformation of the joint angle, which makes it difficult to restore the original angle, which is preferable. Absent.

  The tensile strength of the band 3 is a value measured according to JIS D 4604-1995 7.4 webbing test (1.1). Specifically, the test piece was obtained by attaching the test piece to a tensile tester so that the distance between the clamps was 220 ± 20 mm, applying a load at a pulling speed of about 100 mm per minute, and measuring the load when the test piece broke. The load value was taken as the tensile strength.

  The elongation percentage of the belt part 3 is a value measured according to JIS D 4604-1995 7.4 webbing test (1.3). As a detailed measurement method, first, a test piece is attached to a tensile tester so that a distance between clamps is 220 ± 20 mm, and an initial load of 200 N is applied so that the test piece is tensioned. Within that distance, a graduation line with a mark distance of 200 mm is drawn, pulling is started, a load is applied at a tensile strength of about 100 mm per minute, and when the load reaches 11.1 kN, the mark distance is measured. When the gauge distance is L (mm) and the elongation is δ (%), the value δ calculated by δ = (L−200) ÷ 200 × 100 is defined as the elongation.

  The fixing portions 4 provided at both ends of the belt portion 3 are preferably formed of a member that is not easily deformed even by a compressive force and an extension force when used in the reinforcing structure 1, for example, a metal material, in particular, It can be formed of iron, steel or the like. Although the thickness of the fixing | fixed part 4 can be suitably changed with the scale of the building to reinforce, the specification of a structural material, etc., Preferably they are 2 mm or more and 5 mm or less, More preferably, they are 3 mm or more and 5 mm or less. Further, the width of the fixing portion 4 (dimension in the direction of reference numeral 50 in FIG. 9) is 80% to 110% with respect to the thickness of the synthetic resin foam member 2 (dimension in the direction of reference numeral 50 in FIG. 9). It is preferable that the reinforcing member is stably fixed to the structural material without any economic disadvantage by forming the width to about 100%, that is, approximately the same width.

  Further, the shape of the fixing portion 4 is formed so as to be in intimate contact with the synthetic resin foam member 2 or further the structural material at least on the inner surface thereof when installed, and is positioned parallel to the structural material. What is necessary is just to form with a surface. In addition, the fixing | fixed part 4 used for the reinforcement member of the aspect which has the perpendicular | vertical surface a shown by FIG. 8a and FIG. 8b uses the lower end part of the surface which touches the perpendicular | vertical surface a as a structural material as shown to FIG. 8a or 8b. You may form so that it may contact | connect, or as shown in FIG. 1, you may form so that a clearance gap may be made between the said lower end part and a structural material. In particular, when a gap is formed between the lower end portion of the surface of the fixing portion 4 in contact with the vertical surface a and the structural material, when a compressive force is applied between the structural materials, the synthetic resin foam in the gap portion. The member 2 is easily compressed. As a result, the compressive force is favorably absorbed by the synthetic resin foam member 2, which is preferable. The fixing portion 4 has a supporting force enough to maintain the state in which the reinforcing member of the present invention is stably installed between the structural materials even when an extension force in the range of 2N to 10N is applied between the structural materials. It is desirable to determine the size and shape on the assumption that it is shown.

  As the fastener 5 used in the present invention, the bridging member 24 and the synthetic resin foam member 2 of the present invention can be fixed to the structural material through the insertion hole 6 or the insertion hole 7. Any of them can be used. For example, a screw screw having a screw part formed at the tip can be used. Further, if a fastener hole S penetrating in advance in the structural material is formed, a bolt and a nut can be used as the fastener 5. For example, as the screw screw, a metal member manufactured using a JIS G 3505 mild steel wire SWRM10 and a surface treated by electrogalvanizing based on JIS H8610 can be used. . Moreover, what was manufactured by changing suitably the diameter and length of a screw screw on the basis of Housing Finance Corporation Standard M10-M16 can be used. For example, when the reinforcing structure 1 shown in FIG. 8a is formed, the length of the screw screw in consideration of the height of the fixing portion 4 and the synthetic resin foam member 2 (the dimension in the direction of reference numeral 51 in FIG. 9). Can be appropriately determined.

  If it is the reinforcement member of this invention which has the above structure, when it installs between structural materials, it can absorb and attenuate a compression force and an extension force satisfactorily. Furthermore, since only the fixed part is formed of a hard member, it is lightweight as a whole, and has excellent handleability during transportation or installation.

Example 1
The reinforcing structure 1 shown in FIG. 9 was formed using the reinforcing member 23 of the present invention described above, and the proof stress was tested. As the synthetic resin foam member 2, “P-Block” (expansion ratio of 15 times) manufactured by JSP Co., Ltd. was used. The synthetic resin foam member 2 has a code 50 = 60 mm, a code 51 = 55 mm, a code 52 = 40 mm, a code 53 = 30 mm, a code 54 = 300.6 mm, a code 55 = 350 mm, a code 56 (radius R) = 500 cm, θ1. = 90 °, and θ2 = 135 ° C. On the side surface 8 and the side surface 9 of the synthetic resin foam member 2, an insertion hole 7 was formed in a portion 33 cm from the corner formed by the side surface 8 and the side surface 9. In addition, the angle formed from the side surface 8 and the side surface 9 was set to 90 ° in accordance with the normal angle 90 ° of the structural material 11 and the structural material 12. The fixing part 4 constituting the bridging member was formed with a thickness of 3.2 mm using an iron material of JIS SS41. The fixing portion 4 is formed with a size of 57 = 50 mm so that a gap is generated between the lower end edge of the surface 58 positioned perpendicular to the structural material and the structural material. The other fixed portions 4 were formed on the inner surface with the same dimensions as the dimensions of the synthetic resin foam member 2 in contact therewith. Further, an insertion hole 6 is provided in a surface of the fixing portion 4 that is positioned in parallel with the structural material. For the band 3, webbing having a tensile strength of 23.5 kN and an elongation of 15% was used. The band part 3 and the fixing part 4 are joined together by passing the band part 3 from the lower surface of the fixing part 4 (the surface in contact with the synthetic resin foam member 2) to the upper side through a through-hole formed in the fixing part in advance. Folded and sewed using a vinylon No. 5 thread and joined. Thereby, the reinforcing member was completed.
Next, a square member having a width of 105 mm × 105 mm is used as the structural member 11 and the structural member 12, and a tenon is formed and fitted in a place where these structural members are coupled to each other, and the structural member 11 and the structural member 12 are coupled by the joint hardware 27. A joint with an angle of ° was formed. As the bonding hardware 27, 15A04-1 “Super Shuttle Plate” of Tanaka Co., Ltd. was used. In the structural material 11, a 136 cm portion from the point in contact with the structural material 12 was used as the pressurizing unit 28 in the test. In the structural material 11 and the structural material 12, a fastener hole S was formed in a portion 33 cm from a point where they contact. The bridge member and the synthetic resin foam member were installed between the structural material 11 and the structural material 12. Then, the reinforcing member is made of a metal lever, the insertion hole 6, the insertion hole 7 and the fastener hole S are made to coincide with the structural material, and the screw screw 5 is inserted into the structural material, and the synthetic resin foam member 2 and the bridging member are inserted into the structural material. 24 was fixed to complete the reinforcing structure of the present invention. The screw 5 was designed and manufactured based on the Housing Finance Corporation Standard M12, with a length of 150 mm and a bolt diameter of 8.6 mm.

Comparative Example 1
On the other hand, a state in which a 90 ° joint was formed by the structural material 11 and the structural material 12 without using the reinforcing structure of the present invention was defined as Comparative Example 1.

In order to measure the proof strength against the compressive force of the reinforcing structure of the present invention formed as Example 1 above, first, the pressure portion 28 of the structural material 11 is gradually loaded at a speed of 1 mm per second in the direction 29 in which the space between the structural materials is compressed. When the displacement amount was about 3 mm, the load was gradually weakened at a speed of 1 mm per second. Subsequently, in order to measure the proof strength against the stretching force of the first embodiment, the load is gradually applied to the pressurizing unit 28 in the direction 30 for stretching between the structural members at a speed of 1 mm per second, and the displacement distance is about -3 mm. Then, the load was gradually weakened at a speed of 1 mm per second, and this was repeated three times. Further, in the same manner as described above, the displacement amount is about 5 mm to about −5 mm, about 7 mm to about −7 mm, about 9 mm to about −9 mm, about 11 mm to about −11 mm, about 14 mm to about −14 mm, about The displacement was repeated three times from 19 mm to about −19 mm, from about 28 mm to about −28 mm, and from about 46 mm to about −46 mm. Finally, the test was completed after a large displacement from about 90 mm to −90 mm. From the graph showing the relationship between the load applied in the above test and the displacement distance, the results of the last large displacement (± 90 mm displacement) are shown in FIG. In addition, the load applied in the direction which compresses between structural materials was shown by + value, and the displacement distance at that time was shown by + value. Further, a load applied in the direction of extending between the structural members is indicated by a minus value, and a displacement distance at that time is indicated by a minus value.
On the other hand, in the first comparative example as well, the pressure portion of the structural material 11 is pressurized in the direction in which the structural material is compressed and the direction in which the structural material is expanded, and the relationship with the displacement distance is measured. The results of the last large displacement (± 90 mm displacement) are shown in FIG.

  As a result of the above measurement, in Example 1, compared with Comparative Example 1, sufficient proof stress was generated with respect to the compressive force and the stretching force, and it works well as a reinforcing structure used between the structural material 11 and the structural material 12. Confirmed to do.

Sectional drawing which shows one embodiment of the reinforcement structure of this invention Sectional drawing which shows the state at the time of compressive force being applied in one embodiment of the reinforcement structure of this invention Sectional drawing which shows the state when tensile force is applied in one embodiment of the reinforcement structure of this invention Explanatory drawing which shows an example of the method of forming the reinforcement structure of this invention between the structural materials in which the joint angle was deformed Schematic cross-section when the reinforcement structure of the present invention is applied to four joints formed in a frame formed by two columns, beams and a base. Schematic cross-sectional view when the reinforcing structure of the present invention is applied to a joint formed by rafters and a bundle of sheds on the back of the shed The slope view which shows one embodiment of the reinforcement member of this invention Sectional drawing which shows the embodiment of the reinforcement member of this invention The perspective view which shows the Example of this invention The graph which shows the result of the yield strength test of the reinforcement member of this invention A perspective view showing an example of a conventional reinforcing structure Sectional drawing which shows an example of the conventional reinforcement structure

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reinforcing structure of the present invention 2 Synthetic resin foam member 3 Band portion 4 Fixing portion 5 Fastener 6 Insertion hole 7 Insertion hole 8 Side surface (side surface A)
9 Side (side B)
10 Side (side C)
11 Structural material (Structural material A)
12 Structural material (Structural material B)
23 Reinforcing member of the present invention 24 Crossing member 25 Band portion through hole 26 Coupling portion

Claims (6)

  A reinforcing member for reinforcing a structural material A and a structural material B forming a joint in a building or a building, having a fixing portion for the structural material at both ends, and formed from a fiber between the fixing portions. A synthetic resin foam formed by having a bridging member formed with a belt portion, a side surface A in contact with the structural material A, a side surface B in contact with the structural material B, and a side surface C in contact with the bridging member A building or a reinforcing member for a building comprising a body member.   At least in a portion where the belt portion and the synthetic resin foam member are in contact, the side surface C of the synthetic resin foam member is curved in a convex shape in a direction opposite to the corner formed by the side surface A and the side surface B. The building or the reinforcing member for a building according to claim 1, wherein the reinforcing member is formed.   3. The building or building reinforcing member according to claim 2, wherein the portion of the side surface C that is curved in a convex shape is an arc drawn with a radius of 100 cm or more and 2000 cm or less.   The angle formed from the side surface A and the side surface B of the synthetic resin foam member is formed at an angle equal to the angle of the joint formed from the structural material A and the structural material B at the time of designing the building or the building. The building or the reinforcing member for a building according to any one of claims 1 to 3, wherein the reinforcing member is a building.   The tensile strength of the said belt | band | zone part is 980N or more and 49kN or less, and elongation rate is 3% or more and 20% or less, The building of any one of Claims 1-4 characterized by the above-mentioned. Reinforcing members for buildings. A reinforcing structure in which a reinforcing member is fixed between a structural material A and a structural material B forming a joint in a building or a building, wherein the reinforcing member has fixing portions for the structural material at both ends, and It has a bridging member formed with a band portion formed of fibers between the fixing parts, a side surface A in contact with the structural material A, a side surface B in contact with the structural material B, and a side surface C in contact with the bridging member. And the synthetic resin foam member formed between the structural material A and the structural material B with no gap between the synthetic resin foam member and the synthetic resin foam member. The building is formed by fixing the bridge member to the structural material A and the structural material B through the fixing portion in a state where the side surface C of the member is in contact with the bridge member. Or the reinforcement structure of a building.

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