JP2009068329A - Reinforcing member and reinforcing structure for building and building structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing member for reinforcing a structural material by being laid along a section between a column structure material and another structural material connected to the column structure material, and a reinforcing structure for a building and a building structure, which uses the reinforcing member. <P>SOLUTION: The reinforcing member for the building and the building structure is laid along the section between the column structure material for the building and the building structure, and another structural material connected to the column structure material, so as to reinforce the structural material. The reinforcing member comprises a metal member for being mounted on the structural material for the building and the building structure, and a surface metal member having an energy absorber and a V-shape. The energy absorber is integrally constituted by being sandwiched between the metal member for being mounted on the structural material, and the surface metal member. The metal member for being mounted on the structural material is set wider than the surface metal member, so as to form a portion for being mounted on the structure material in which the surface metal member and the energy absorber do not exist. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a column structure material in a wooden building or a steel frame structure, a reinforcing member used between the column structure material and another structural material connected to the column structure material, and vibration and vibration resistance and earthquake resistance using the reinforcing member. The present invention relates to a building having a property and a reinforcing structure of the building.

  In recent years, the need for anti-vibration and seismic resistance in wooden buildings and steel structures has become more and more deeply understood, and the degree of interest has increased. In the present invention, the term “wooden building” is used to include a wooden building or a wooden building, and the term “steel building” is used to include a lightweight steel building and a heavy steel building.

  Conventionally, as reinforcement structures for reinforcing wooden buildings and steel frame buildings, there are structural members such as columns, studs, foundations, beams and trunk differences in wooden framed buildings, square members in wooden framed wall construction buildings, etc. Reinforcement structure spanning reinforcements such as braces and brace structures constructed between other structural materials, or reinforcement such as ramen structures and breath braces provided between structural materials such as columns and beams in steel structures The structure is widely known.

  The above-described reinforcing structure is improved in earthquake resistance and vibration resistance as compared with a building or a structure having no such reinforcing structure. Further, as a reinforcing structure for reinforcing and printing a building and a building, a reinforcing structure for further improving the earthquake resistance performance by using an earthquake resistant structure is known (see, for example, Patent Document 1 and Patent Document 2). ). In the reinforcing structure shown in Patent Document 1 and Patent Document 2, the corner portion formed by one structural material (structural material A) and the other structural material (structural material B) is the other halfway through the structural material A. In the middle of the structural material B, a reinforcing member made of spring steel is bridged and fixed. The reinforcing structure described in Patent Document 2 is formed 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.

  Further, for example, Patent Document 3 is a reinforcing member installed in a joint formed of two structural materials in a building or a building, and has a seismic control structure with high seismic performance. A reinforcing member is shown which exhibits a damping effect following the deformation of the material and exhibits a restoring force for restoring the joint angle to a normal position.

  Further, Patent Document 4 shows a column base metal fitting having a structure in which a locking claw is provided on one flat plate metal that fastens a base and a column standing on the base.

Japanese Patent Laid-Open No. 2003-96911 Japanese Patent Laid-Open No. 2003-20729 International publication 2004/051015 pamphlet JP-A-8-312008

  Such a conventional reinforcing structure is reinforced between one structural material and the other structural material at a corner formed between one structural material and the other structural material (for example, a column and a beam). This is a method of reinforcing the material by bridging the members. In such a reinforcing structure, when the bending strain of the column increases, the reinforcing action is not satisfactorily exhibited. Further, in the case of a wooden building, there is a problem that the strength of the wooden part is easily influenced by performance such as the bending strength of the column and the strength of the fixing part, such as the strength of the fixing member may be lost and the wooden part may be destroyed.

  The reinforcing member and the reinforcing structure of the present invention are a reinforcing member and a reinforcing structure based on a completely different idea from the conventional reinforcing member and the reinforcing structure as described above, and the performance such as the bending strength of the column structure material and the strength of the fixing portion. To provide a reinforcing member and a reinforcing structure having a completely different structure from the conventional one that can absorb and attenuate the tensile shear force and elongation force applied to the column structure material, and can also absorb the bending strain. It is.

  The present invention relates to a column structure material and a reinforcement member that reinforces the structure material by bridging it between other structure materials connected to the column structure material, a building using the reinforcement member, and a reinforcement structure of the building.

That is, the present invention
(1) A reinforcing member that reinforces a structural material by bridging it between a building structure and a column structure material in the building and other structure materials connected to the column structure material, and the reinforcement member includes the building and the building A metal member for attaching the object to the structural material, an energy absorber and a surface metal member having a V-shape, the metal member for attachment being wider than the surface metal member, and the energy absorber Is sandwiched between the mounting metal member and the surface metal member so as to be integrally formed, and a mounting portion of the mounting metal member to the structural material is formed at a place where the surface metal member and the energy absorber do not exist. The present invention relates to a building and a reinforcing member for the building.

(2) A high-damping rubber, viscoelastic thermoplastic resin, wherein the energy absorber has an equivalent damping constant (Heq) of 10 to 60% and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ² The building and the reinforcing member for a building according to the above (1), wherein the building is a type selected from

(3) In the reinforcing member, the fixing portion with the structural material is formed at a location where the mounting metal member and the energy absorber in the V-shaped surface metal member do not exist. 2) The building described in the above and a reinforcing member for the building.

(4) The building and the reinforcing member for a building according to any one of (1) to (3) above, wherein the other structural material connected to the column structural material is a beam or a foundation.

Moreover, this invention made it wider than the surface metal member formed in the said metal member for attachment which comprises this reinforcement member in the reinforcement member in any one of (5) said (1)-(4). A portion divided into two forks in the V-shaped surface metal member constituting the reinforcing member, wherein the mounting metal member is fixed to the column structure material or another structure material connected to the column structure material in the attachment portion to the structure material (V-shaped leg portion) is bridged between the column structure material and the other structure material connected to the column structure material, and is connected to the column structure material at the fixing portion with the structure material in the surface metal member. The present invention relates to a building and a reinforcing structure of a building characterized by being fixed to another structural material.

(6) In the reinforcing member according to any one of (1) to (4), the attachment portion to the structural material that is wider than the surface metal member formed on the attachment metal member constituting the reinforcement member In the above, the mounting metal member is fixed to the column structure material, and the bifurcated portion (V-shaped foot portion) of the V-shaped surface metal member constituting the reinforcement member is a column structure material and a column structure. Linked with other structural materials that are connected to the structural members, spacers are arranged at the fixed portions of the surface metal members with the structural materials, and the connecting portions with the structural members of the other structural materials that are connected to the structural members of the columns. A plate-shaped L angle is arranged at a corner opposite to the spacer, and the spacer and the L angle are fixed to another structural material connected to the column structure material together with the surface metal member. Reinforcement structure.
Is the gist.

  The reinforcing member of the present invention comprises a building and a pillar structure material of the building, a metal member for attachment to another structure material connected to the pillar structure material, an energy absorber, and a surface metal member, and the attachment In this structure, an energy absorber is integrally sandwiched between the metal member for use and the surface metal member. In the reinforcing member according to the present invention, when a tensile shearing force or a stretching force is applied, the energy absorber sandwiched between the two metal members constituting the reinforcing member is applied to the structural material from the outside. It absorbs energy (deformation energy) of shearing force or stretching force (combined force by tension / compression and shearing) and attenuates to suppress deformation of the structure. Furthermore, since the reinforcing member of the present invention can further enhance the reinforcing effect of the metal member constituting the reinforcing member, a reinforcing structure excellent in vibration proofing and earthquake resistance is provided.

  The reinforcing member of the present invention has a plate-shaped L-angle arranged at a fixed portion with the structural material and fixed to the structural material at the connecting portion between the column structural material and the structural material connected to the column structural material. Thus, a reinforcing structure in which the reinforcing effect by the reinforcing member is further enhanced against the stress from the reinforcing member is obtained.

Further, the reinforcing member of the present invention can be mounted on the outer wall side or the inner wall side of the building and the building over the connecting portion between the column structure material and the structure material connected to the column structure material such as a beam or a base. Therefore, depending on the bending strength of the column structure material, the amount of energy absorption as a spring-strength reinforcing structure for each column is added as a proof stress, thereby exhibiting a reinforcing effect. Further, the reinforcing member of the present invention can be attached to the outer wall side or the inner wall side of the building and the building in the connecting portion of the column structure material and the structure material connected to the column structure material or the column structure material. It is also possible to reinforce the pillar between the window and the window.

  Since the reinforcing member of the present invention can be attached and reinforced to each column structure material and a structure material connected to the column structure material such as a beam or a base, of course, in a new building, for example, due to an earthquake or the like It can also be applied to temporary reinforcement when tilted or distorted.

  The reinforcing member having a large damping effect, in which an energy absorber such as a high damping rubber is sandwiched between the mounting metal member and the surface metal member of the present invention, and is configured integrally, is a building and a column structure material of the building. Or the reinforcement structure installed in the other structural material connected with a column structural material can obtain the damping effect of 30 to 40% of the tensile shear force added to a structural member compared with the case where such a reinforcing member is not used. Moreover, the deformation of the response acceleration due to an earthquake or the like can obtain a damping effect of 40 to 50%.

The reinforcing member of the present invention is provided between a building and a column structure material in the building or a column structure material and another structure material connected to the column structure material (a so-called horizontal member such as a beam, a girder, a trunk difference or a base). A reinforcing member that reinforces the building and the building by crossing over the building, a metal member for mounting the building and the structural material of the building (hereinafter simply referred to as “mounting metal member”), an energy absorber, and a structure It is comprised by the surface metal member which has a fixing | fixed part with a material, and consists of the structure comprised integrally by sandwiching an energy absorber between the said metal member for attachment and the said surface metal member. Further, the present invention provides a building in which a reinforcing member having the above-described configuration is installed across a building and a column structure material in the building, or another structure material connected to the column structure material and the column structure material, and It relates to the reinforcement structure of buildings.
In the present invention, the column structure material may be referred to as a “column member”, and another structure material connected to the column structure material may be referred to as a “structure material such as a beam or a base”. These may be collectively referred to as “structural materials”.

The energy absorber constituting the reinforcing member in the present invention absorbs and attenuates the tensile shear force and expansion / contraction force (combined force due to tension / compression and shear) applied between the structural members by external force, and restores the original shape. A material having an obtainable function and having an equivalent damping constant (Heq) of 10 to 60% and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ² is used. An equivalent attenuation constant (Heq) of less than 10% is not preferable because the amount of energy absorption is small. A material having a shear elastic modulus (G) of less than 0.05 N / mm ² is too soft and has a small energy absorption amount, and a material having a shear elastic modulus (G) of more than 2.0 N / mm ² has a too high rigidity and a small amount of energy absorption. Energy due to shearing force and stretching force is sufficiently absorbed, and the intended purpose cannot be obtained because it cannot resist deformation. From a practical viewpoint, the equivalent attenuation constant (Heq) is preferably 10 to 40%. The shear elastic modulus (G) is preferably 0.1 to 1.2 N / mm ² .
Examples of such a property include high damping rubber and viscoelastic thermoplastic resin. Of these, high-damping rubber is particularly preferable. Examples of the viscoelastic thermoplastic resin include a hard urethane resin and a silicon resin.

  The thickness of the energy absorber used in the present invention depends on the type of energy absorber, the material and type of the structural member of the building or building on which the reinforcing member of the present invention is constructed, that is, whether it is a wooden member or a steel member, or construction. The thickness varies depending on the location to be used, and an appropriate thickness is taken into consideration. However, when the energy absorber is a highly attenuating rubber, it is usually 1 to 50 mm, preferably 1 to 30 mm, more preferably 5 to 20 mm. It is. When the thickness of the energy absorber is less than 1 mm, energy for deformation cannot be sufficiently absorbed. On the other hand, when the thickness exceeds 50 mm, the entire reinforcing member becomes thick and the cost increases. Moreover, the width | variety of the energy absorber 3 should just be the range of 10-100% with respect to the width | variety of a column member, and is equivalent to the width | variety of a surface metal member, and 20-100% is normally employ | adopted.

  The thicknesses of the mounting metal member and the surface metal member constituting the reinforcing member in the present invention are the material of these metal members and the material and type of the building or structural member of the building on which the reinforcing member of the present invention is constructed, that is, the object. Depending on whether the building or building is a wood system or steel frame, or where it is constructed, etc., it cannot be determined unconditionally, but the mounting metal member is usually in the range of 1 to 6 mm, preferably 1.5-5 mm. The surface metal member 2 is used in the range of 2 to 12 mm, preferably 2 to 10 mm. Although it is desirable that the mounting metal member and the surface metal member have the same thickness, they need not necessarily be the same. In the case of a wooden building, the metal members having a thickness of 2 to 3.5 mm are used. If the thickness of the metal member is too thin, the strength against deformation may be insufficient, and if the thickness is thick, there is no problem in terms of strength against deformation of the reinforcing member. For example, in the case of a wooden building, there is a possibility that the fixed portion cannot withstand holding to a structural member such as a column member, a beam, or a base. In addition, the overall cost increases.

  In the present invention, the mounting metal member and the surface metal member are usually made of steel plate or stainless steel, and the mounting metal member and the surface metal member may be the same or different, but the surface metal member is particularly spring steel. Preferably there is.

  The width of the mounting metal member varies depending on the shape of the mounting metal member, the mounting position on the structural member, and the like, but the mounting metal member mounted on the column member has a width of 50 to 100 with respect to the width of the column member. %. The mounting metal member is mainly a flat plate. For example, in the case of a surface metal member having a shape as shown in FIG. 1, a wide size including the entire convex portion side from approximately the middle of the V-shaped shape of the surface metal member. Is adopted. Of course, it can also be set as the flat metal member of the shape corresponding to V shape. In addition, as shown in FIG. 2, the flat mounting metal member may be arranged on the side where the pair of legs are formed from the substantially middle portion of the V shape.

  In order to integrate the energy absorber disposed between the mounting metal member and the surface metal member in the reinforcing member of the present invention by sandwiching and joining the mounting metal member and the surface metal member, for example, the mounting metal The surface bonded to the energy absorber of the member and the surface metal member is subjected to blast polishing or the like in order to improve the adhesion performance, and is bonded to both the metal member and rubber on the bonding surface of the energy absorber of both metal members. Apply adhesives such as epoxy adhesives, rubber adhesives, phenolic resin / rubber adhesives, and perform vulcanization with an energy absorber such as highly attenuating rubber placed and sandwiched Thus, the reinforcing member according to the present invention in which the mounting metal member, the surface metal member, and the energy absorber are integrally and firmly joined can be obtained.

  The surface metal member constituting the reinforcing member of the present invention can be provided with a plurality of latching claws 22 as shown in FIG. This locking claw can enhance the reinforcement against pulling out of the connecting portion between the beam or the base and the column structure material by using the locking claw by driving it into the structural material. In addition, it is possible to suppress the occurrence of cracks caused by driving nails or the like into many beams or foundations.

An example of a reinforcing member when the reinforcing member of the present invention and the reinforcing member are applied to a wooden building will be specifically described with reference to the drawings.
FIG. 1 shows an embodiment in which the surface metal member constituting the reinforcing member I of the present invention is a V-shaped metal member and the mounting metal member is a flat metal member. 1A is a plan view, and FIG. 1B is an external perspective view. In the reinforcing member of the embodiment shown in FIG. 1, the mounting metal member is disposed on the convex portion side (lower in FIG. 1 (1)) from substantially the middle of the V-shaped surface metal member 2 to the column member. The V-shaped surface metal member 2 shown in FIG. 1 (1) has a bifurcated portion (V-shaped leg portion) as a structural material such as a beam or a base. The fixing part is configured. An energy absorber 3 is sandwiched between the mounting metal member 11 constituting the mounting portion to the column member and the surface metal member 2 and joined to the flat mounting metal member 11 so as to be integrated. ing.

  In the reinforcing member of the present invention, contrary to FIG. 1, the fixed portion with the structural material such as a beam or a base can be the V-shaped convex portion side.

FIG. 2 shows an implementation in which a plurality of locking claws are provided on the convex portion of the V-shaped surface metal member, and an opening is provided in the substantially intermediate portion on the foot side which is divided into a bifurcated portion from the substantially intermediate portion of the V-shaped shape. It is an aspect.
A flat mounting metal member 11 is arranged on the side of the surface metal member 2 on which the leg portion divided from the substantially middle portion of the V-shape is formed, and the mounting metal member and the V-shaped surface metal. The energy absorber 3 is sandwiched between the members and configured integrally.
2 (1) is a plan view, FIG. 2 (2) is a side view, FIG. 2 (3) is a cross-sectional view taken along line AA in FIG. 2 (1), and FIG. 2 (4) is in FIG. FIG. 2B is a sectional view taken along line BB, and FIG.

  In this aspect, the flat mounting metal member 11 is attached to the column member, and the plurality of locking claws 22 provided on the V-shaped convex portion side of the surface metal member are used as a beam or a base during construction. The reinforcement member can be fixed by driving in, and the reinforcement against the pull-out at the connecting portion between the column member and the beam or the base can be enhanced. The mounting metal member 11 is fixed to the structural member at a portion protruding from the pair of V-shaped legs. Further, an opening 61 formed by connecting a pair of legs divided from a substantially middle portion to a fork is provided, and a nail, a screw nail, or a bolt is arranged through the opening to attach a mounting metal member. It can fix to a structural material and can heighten the reinforcement effect with respect to drawing | extracting in the connection part with the beam of a pillar member, a foundation, etc. Moreover, the control function with respect to the strain stress is assisted, and the effect of preventing the separation between the metal member and the energy absorbing material is also achieved.

  FIG. 3 shows an embodiment of a reinforcing structure in which a reinforcing member whose surface metal member constituting the reinforcing member I shown in FIG. 1 is a V-shaped metal member 2 is installed across the connecting portion between the column member 12 and the base 13. An aspect is shown. 3 (1) is a front view, FIG. 3 (2) is a cross-sectional view taken along line AA in FIG. 3 (1), and FIG. 3 (3) is a cross-sectional view taken along line BB in FIG. 3 (1). Sectional drawing is shown, FIG.3 (4) shows the CC sectional view taken on the line in FIG.3 (1).

  3 (1), FIG. 3 (2), FIG. 3 (3) and FIG. 3 (4), the plate-shaped mounting metal member 11 constituting the reinforcing member I is fixed to the surface of the column member 12. It is fixed with a jig 8 (for example, a screw screw, a nail, etc.), and as shown in FIGS. 3 (1), 3 (2) and 3 (4), the V-shaped shape of the surface metal member 2 is bifurcated. A pair of divided legs are bridged to the base 13, the spacer 4, and the plate-like L angle 14 are connected to the corners of the pillars and the bases, and the corners of the L angles are connected to the corners of the base 13. The spacer 4 and the L angle 14 are fixed to the base 13 together with the foot portion of the surface metal member 2 with a fixing jig 9 (for example, screw screw, nail or the like).

The plate-shaped L angle has a thickness in the range of 2 mm to 10 mm. The width is about the same as or slightly wider than the column member. The reinforcement structure shown in FIG. 3 can enhance the reinforcement against the tearing of the reinforcement member fixing portion and further enhance the reinforcement performance of the reinforcement member.
Although FIG. 3 shows an example in which the plate-shaped L angle is applied to the connecting portion between the base and the column member, it can also be applied to the connecting portion between the beam and the column member.

  Although the above demonstrated the reinforcement structure in a wooden building, the reinforcement member of this invention can also be used as a reinforcement member of not only a wooden building but a steel building. In the case of a steel structure, use a metal member for attachment to the structural material that constitutes the reinforcing member, and a surface metal member that is somewhat thicker than the case described above for reinforcing a wooden building. It is desirable to do. Further, it is desirable that the thickness of the energy absorber is thick within the range described above. In a reinforcing member used as a reinforcing structure for a steel structure building, a plate-shaped member is used as a metal member for attachment to a structural material. For fixing the reinforcing member to the structural material, bolts and nuts are usually used.

An example of this invention reinforcement member is shown. The another aspect of this invention reinforcement member is shown, and the reinforcement member of embodiment which has a some latching claw in a surface metal member is shown. An example of the embodiment of the reinforcement structure using the reinforcement member of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Mounting metal member 2, Surface metal member 22 Locking claw 3 Energy absorber 4 Spacer 61 Opening part 8, 9 Fixing jig 12 Column structure material 13 Structure material (beam, foundation)
14 Plate L-angle I Reinforcing member

Claims (6)

  A reinforcing member that reinforces the structural material by bridging it between the pillar structural material in the building and the building and the other structural material connected to the pillar structural material, A metal member for attachment to a structural material, and an energy absorber and a surface metal member having a V-shape, the metal member for attachment being wider than the surface metal member, and the metal member for attachment and the surface The energy absorber is sandwiched between the metal member and integrally formed, and the attachment portion to the structural member of the mounting metal member is formed at a place where the surface metal member and the energy absorber do not exist. Characteristic buildings and building reinforcement members. The energy absorber is selected from high damping rubber and viscoelastic thermoplastic resin having an equivalent damping constant (Heq) of 10 to 60% and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ^2. The building and the reinforcing member for a building according to claim 1, wherein the member is one type.   3. The building and the building according to claim 1 or 2, wherein a fixing portion with a structural material is formed at a location where the mounting metal member and the energy absorber in the surface metal member do not exist in the reinforcing member. Reinforcing member.   The building and the reinforcing member for a building according to any one of claims 1 to 3, wherein the other structural material connected to the column structural material is a beam or a foundation.   The reinforcing member according to any one of claims 1 to 4, wherein the mounting metal member is attached to a structural member that is wider than a surface metal member formed on the mounting metal member constituting the reinforcing member. Is fixed to the column structure material or another structure material connected to the column structure material, and the bifurcated portion (V-shaped leg portion) of the V-shaped surface metal member constituting the reinforcing member is a column. It is bridged between the structural material and the other structural material that is connected to the column structural material, and is fixed to the other structural material that is connected to the column structural material at the fixing portion with the structural material in the surface metal member. Reinforcing structures for buildings and buildings.   The reinforcing member according to any one of claims 1 to 4, wherein the mounting metal member is attached to a structural member that is wider than a surface metal member formed on the mounting metal member constituting the reinforcing member. Is fixed to the column structure material, and the bifurcated portion (V-shaped leg portion) of the V-shaped surface metal member constituting the reinforcing member is connected to the column structure material and the column structure material. It is bridged between structural materials, and a spacer is arranged at a fixed portion with the structural material in the surface metal member, and at a corner portion opposite to the connecting portion with the column structural material in another structural material connected to the column structural material. A reinforcing structure for a building and a building, in which a plate-like L angle is arranged, and the spacer and the L angle are fixed to another structural material connected to the column structural material together with the surface metal member.

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