JP2000220303A - Earthquake resistant reinforcing structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earthquake resistant reinforcing structure facilitating setting of a building. SOLUTION: The earthquake resistant reinforcing structure 12 of a reinforced concrete, steel frame reinforced concrete or steel frame building 10 includes the frame 14 of the building, a wooden wall body 22 fitted to the frame 14 and a plurality of steel production members 28 connecting the wall body 22 to the frame 14 and extending in the wall body 22 from the frame 14. Thus, it can be applied to either building of existing and new constructuction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aseismic reinforcement structure for a reinforced concrete structure, a steel reinforced concrete structure or a steel frame building.

[0002]

2. Description of the Related Art Conventionally, for the seismic reinforcement of existing reinforced concrete, steel-framed reinforced concrete or steel-framed buildings, a reinforced concrete wall or a brace made of a steel frame is arranged in a frame of the building.

[0003] Incidentally, the construction of the reinforced concrete wall includes, in addition to the arrangement of the formwork, the arrangement of the reinforcing bars, the placing of concrete, and the like,
Other work is required in consideration of the occurrence of a gap between the cast concrete surface and the existing beam bottom due to the settling of the cast concrete, and the installation of the brace requires the frame Along with the heavy steel frame, and press-fitting of mortar for integration between them.

[0004] For this reason, the construction of the reinforced concrete wall and the installation of the braces require a great deal of labor and time.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an earthquake-resistant reinforcement structure which can be easily installed on a building.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a seismic reinforcement structure for a reinforced concrete structure, a steel reinforced concrete structure or a steel frame building, comprising: a frame of the building; a wooden wall fitted into the frame; A plurality of steel members extending into the wall from the frame, connecting the wall to the frame. The present invention is applicable to both existing and new buildings.

In the case of an existing reinforced concrete or steel reinforced concrete building, the wall comprises a plurality of wooden frame members extending along the frame of the building, and each steel member comprises the frame and each of the steel members. The frame member may be made of a steel bar having both ends fixed to the frame and the frame member through an adhesive filled in the holes provided in the frame members and filled in the holes. The frame member may have an injection hole for injecting the adhesive into each hole.

[0008] In place of the steel member, the steel member is received in a hole provided in the frame of the building and is bonded to the frame of the building via an adhesive filled in the hole. It may be composed of a bolt which is fixed and penetrates each frame member, and a nut which is screwed to the bolt.

[0009] The wall body having the plurality of frame members may further include at least a pair of opposed plate members which are nailed to the frame members or fastened with bolts and nuts.

[0010] Alternatively, it may include a plurality of wooden braces fixed to the frame member via a plurality of steel bars. One end of each steel bar is received in a hole provided in the frame member and is fixed to the frame member via an adhesive filled in the hole, and the other end is a notch provided in the brace. And is fixed to the brace via an adhesive filled in the notch.

[0011] The wall may be made of a plurality of wooden braces without the frame member. At this time, for each steel member, one end fixed to the frame via an adhesive received in the hole provided in the frame and filled in the hole, and a notch provided in the brace And a bar having the other end secured to the brace via an adhesive filled in the notch.

[0012] The wall may be made of at least a pair of wooden plate members facing each other. At this time, each steel member was provided in a hole provided in the frame of the building and was fixed to the frame via an adhesive filled in the hole, and was provided on both plate members. It may consist of a steel bar with a notch received in a defined hole and having the other end secured to both plate members via an adhesive filling the hole.

In the case where the building comprises a new building,
The wall may consist of at least one wooden board member. At this time, the steel member was received in one end buried in the frame of the building and a hole provided in the plate member, and was fixed to the plate member via an adhesive filled in the hole. And a bar having the other end.

In the case of a new building, the wall may be made of at least one pair of mutually opposing wooden plate members bonded to each other. At this time, the steel member is inserted into one end buried in the frame of the building and a hole defined by a notch provided in both plate members, and the adhesive is filled in the hole. It can be made of a steel bar having the other end fixed to the plate member.

[0015]

According to the present invention, the wall to be fitted into the frame of the building is made of wooden material which is lighter in weight and easier to handle than reinforced concrete or steel frame, and the connecting means is made of the frame. Since it is a simple steel member such as a steel bar or a bolt and a nut extending from the frame, the arrangement of the wall body in the frame and the connection of the wall body to the frame, that is, the installation of the seismic reinforcement structure can be easily performed. It can be performed in a short time.

A hole provided in the frame for fixing the end portion of the steel bar can be easily drilled or the like, and the steel bar can be easily fixed by using an adhesive. Further, in the hole provided in the wooden frame member forming the whole or a part of the wall body and into which the end of the steel bar is inserted, an adhesive is easily applied from the outside through an injection hole provided in the frame member. Can be filled.

When using the bolts and nuts, the connection strength of the frame member to the frame, that is, the fastening strength can be arbitrarily and easily set.

A plate member for covering the openings defined by these frame members can be easily attached to the frame members using nails, bolts and nuts, or the like. A plurality of braces can be used instead of the plate member. The brace is provided with a notch capable of receiving a part of the steel bar projecting from the frame member, so that the brace is horizontally moved into an opening defined by the frame member and is filled with an adhesive. Thereby, the brace can be easily arranged and fixed in the opening defined by the frame member.

The brace can be arranged in the opening defined by the frame and fixed to it in the same manner as the arrangement and fixation in the opening defined by the frame member. Can be easily formed.

The wall is constituted by a pair of plate members having notches that sandwich and receive a part of the plurality of steel bars protruding from the frame, and are easily arranged and fixed in the frame. be able to.

When the building is a new building, one end of the steel member can be buried in concrete cast for forming the frame.

In the case of a new building, when forming the frame, one plate member or a plurality of parallel plate members is arranged in an opening to be defined by the frame, and this is used as the wall. Can be.

When the building is subjected to a horizontal external force due to the occurrence of an earthquake, and thereby the frame of the building is deformed, firstly, each steel member extending from the frame of the building into a wooden wall is connected to the wall by the steel member. I dig into this all over my body. After the completion of the inset, the wall body, which undergoes deformation, serves to reinforce the frame.

[0024]

DETAILED DESCRIPTION OF THE INVENTION Referring to FIG. 1, an existing reinforced concrete or steel reinforced concrete building 10 is shown.
An example of the earthquake-resistant reinforcement structure 12 of the present invention applied to the present invention is shown.

The earthquake-resistant reinforcement structure of the present invention can be applied to a steel-framed building (not shown) in addition to the reinforced concrete or steel-framed reinforced concrete building 10.

The frame 14 of the building 10 includes a pair of columns 16 of the building 10 facing each other, an upper beam 18 connected to the columns 16, and a floor slab 20 connected to the columns 16.
Defines a rectangular opening.

The opening of the frame 14 has a wooden wall 2
2 is fitted. The wall 22 forms a part of the seismic strengthening structure 12 together with the frame 14.

The members constituting the wall 22 (frame members, braces and plate members described later) are formed using timber, preferably a laminated timber for a wooden structure. Here, the term "laminated timber for wooden structure" refers to a plurality of ground plates, small square timber, or veneers cut by a rotary lace or a slicer, so that these fibers extend in parallel with each other in thickness and length. A wooden structural material assembled and bonded in a direction. The wood structural material has a Young's modulus of 0.5-0.85 times and a horizontal shear strength of 1.5-2.0 times compared to concrete.

The illustrated wall body 22 includes a plurality (four in the illustrated example) of frame members 24 formed of square members arranged on the four sides of the rectangle along the frame 14, and a plurality of pairs (shown in FIG. In the example, three pairs) of wooden plate members 26,
Each frame member 24 is connected to the frame 1 via a plurality of steel members 28.
4.

The number of the frame members 24 can be set to 5 or more. In addition, the plurality of pairs of plate members 26 can have a size or quantity that covers all or a part of the rectangular opening defined by the plurality of frame members 24. Since the frame member 24 and the plate member 26 are both made of wood, they are lightweight and easy to handle.

Each pair of plate members 26 is disposed on each of the front and back surfaces of the frame 14, and two of the four frame members 24.
One or three frame members 24.

Each plate member 26 is opposed to each frame member 2
4 are nailed with a plurality of nails 30, whereby all the frame members 24 and all the plate members 26 are integrated with each other to form the wall 22.

Each frame member 24 and each pair of plate members 26 are replaced with nails 30 by using a plurality of bolts penetrating them and a plurality of nuts (not shown) screwed to the bolts. Can be united.

The vertical and horizontal frame members 24 adjacent to each other at an angle of 90 degrees can be arranged so that they are in contact with each other or are spaced apart from each other. Further, each frame member 24 can be arranged so as to be in contact with the frame 14 or so as to have a space between the frame member 24 and the frame 14.

The illustrated steel member 28 is made of bar steel. Each steel bar is inserted into a hole 32 (see FIG. 2) formed in the concrete constituting the frame 14, and an adhesive (for example, made of epoxy resin) filled in the hole 32 at one end received therein. One end fixed to the concrete (frame) via an adhesive) (not shown), and a frame formed of a similar adhesive inserted into the hole 34 formed in each frame member 24 and filled in the hole 34. And the other end fixed to the member 24. The holes can be easily drilled using, for example, a drill.

When the present invention is applied to a steel frame building,
The fixing of one end of the steel bar to the frame can be performed by welding.

Prior to the disposition of the frame member 24,
It is fixed to the frame 14. Thereafter, each frame member 24 is advanced toward the frame until the other end of the steel bar is received in the hole 34 formed in each frame member 24 until it comes into contact with the frame 14 (see the arrow 36 in FIG. 2). While maintaining this contact state with a suitable support means (not shown), the adhesive is injected from an adhesive injection hole 38 provided in the frame member 24 and communicating with each hole 34. Thereby, the other end of the steel bar is fixed to the frame member 24, and each frame member 24 can be connected to the frame 14.

As shown in FIG. 3 and FIG.
Is a plurality of frame members 24 similar to those shown in FIG. 1 and a plurality of wooden members fixed so as to exhibit a V shape (FIG. 3), an X shape (FIG. 5) and the like fixed to these frame members 24. It can be made by combining with the brace 40.

Each brace 40 shown in FIG. 3 is fixed at one end to two frame members (upper and side frame members) 24 which are orthogonal to each other, and at the other end,
It is fixed to the remaining one frame member (lower frame member) 24.

Each brace 40 shown in FIG. 5 is fixed at one end to two frame members (upper and one side frame members) 24 which are orthogonal to each other, and at the other end, the other mutually orthogonal. Are fixed to two frame members (frame members on the lower side and the other side). Further, the two braces 40 are fixed to each other at a portion where they intersect with each other by a nail 42 struck against them, a bolt and a nut (not shown) penetrating them.

Each brace 40 can be fixed to each frame member 24 using a plurality of steel bars 44 similar to the above-described steel bar 28.

For example, referring to FIG. 4 showing a method of fixing the brace 40 shown in FIG. 3, one end of the steel bar 44 is inserted into a hole (not shown) provided in the frame member 24 in advance, and is inserted into the hole. It is fixed to the frame member 24 using the same adhesive as described above. On the other hand, each end of the brace 40 is provided with an elongated notch 46 capable of receiving the other end of the steel bar 44 projecting from the frame member 24.

The brace 40 advances horizontally in the direction of the arrow 48 toward the frame member 24 previously fixed to the frame 14, and the other end of each steel bar 44 of each frame member 24 is inserted into each notch 46. accept. Thereby, the plurality of frame members 24
Each brace 40 can be arranged in the space defined by. Thereafter, by filling the notch 46 with the adhesive, the end of the brace 40 is fixed to the frame member 24,
These can be integrated.

The brace shown in FIG. 5 can also be fixed to the frame member 24 using the method shown in FIG.

A plurality of braces can be directly attached to the frame 14, and the brace alone can be used as the wall (not shown). The fixing of the end of each brace to the frame 14 can be performed in the same manner as shown in FIG. In this case, the end of the brace is
It is fixed to the frame 14 via a part of a steel bar 28 protruding from the frame 4.

Next, referring to FIGS. 6 to 8, there is shown an example in which the seismic retrofit structure 12 of the present invention is applied to a newly-built or newly-built building 50. FIG. The columns, beams, floor slabs, frames, and the like, which are constituent parts of the building 50, are given the same reference numerals as those used in the existing building 10 for easy understanding.

In this example, the wall 22 constituting the earthquake-resistant reinforcement structure 12 is composed of three wooden plate members 52 having a size to close the opening of the frame 14.

Each plate member 52 is placed on the previously formed floor slab 20, and is supported by the formwork 54, 56 for the post 16 and the beam 18 formed by concrete casting thereafter.

In forming the floor slab 20, a plurality of steel members 28 made of the same steel bars as described above are partially embedded. On the other hand, each plate member 52 has a downwardly open hole 58 for receiving these steel members 28.
(FIG. 8) is provided in advance. Each plate member 52 has a hole 5
8, an adhesive filling hole 59 for filling the same adhesive as described above is provided.

Each plate member 52 is further provided with a plurality of holes 60 (FIG. 8) which are opened upward, and a part of the steel member 28 is inserted into the holes similarly, and the same as described above. An adhesive is filled, whereby the plurality of steel members 28 are fixed to each plate member 52.

The plate member 52 adjacent to each column 16 is provided with a plurality of holes 62 (FIG. 7) similar to the holes 60, which are open to the side, and a plurality of holes 62 similar to the holes 60. A part of the steel member 28 is inserted and fixed with the adhesive.

Each of the plate members 52 is provided with a corresponding one of the steel members projecting upward from the floor slab 20 into each of the holes 58 opened at the lower end of the plate member 52 when assembling the molds 54 and 56 for columns and beams. 28 are placed on the floor slab 20 for reception. The upper end of each plate member 52 is provided with a beam form 56.
And is formed so as to protrude from the upper end portion thereof, and is disposed so as to be located in the mold 56 and supported by the mold 56.

Each plate member 52 to be adjacent to the column 16
In addition, the steel member 28 whose side part forms a part of the column formwork 54 and projects from the side part is disposed in the formwork 54.

Therefore, when concrete is poured into the molds 54 and 56, a part of the steel member 28 projecting from the upper end and the side of the plate member 52 is buried in the concrete. Are fixed to the pillar 16 and the beam 18 after molding. Also, after or before removing the molds 54, 56, the holes 5 at the lower end of each plate member 52 are provided.
8 is filled with the adhesive. Thus, each plate member 52 is connected to the frame 14 via the steel member 28.

Instead of the above-described example, as shown by an imaginary line 64 in FIGS. 7 and 8, a pair of plate members 64 facing each other and bonded to each other or a plurality of pairs of plate members 64 arranged in parallel with each other. It can be a wall. In this example, a pair of plate members 64 are provided with a plurality of pairs of elongated cutouts 66 which are open to these mutually facing surfaces and are opposed to each other. The notches 66 in each pair cooperate with each other to define holes for receiving a portion of each steel member 28 that will extend into the formwork 54,56. Each hole is filled with the adhesive, whereby each steel member 28 is fixed to both plates 64.

The plate member 64 can be used not only for a new building but also for a wall of an existing building. In this case, the plurality of notches 66 of each plate member 64 are provided corresponding to a part of the plurality of steel members 28 protruding from the frame 14 of the existing building, and the two plate members 64 face each other. Both cutouts 66 are sequentially erected in the frame 14 around said part of the steel member 28 and are glued together.

FIG. 9 shows an earthquake-resistant reinforcing structure 12 applied to a newly-built or newly-built building 50 having the same configuration as that shown in FIG.

In this example, the upper frame member 24 and the frame members 24 on both sides are connected to the beam 18 of the frame 14 in the same manner as at the upper end and the side of the plate member 52 shown in FIGS. And both columns 16. The lower frame member 24 is also fixed to the floor slab 20 in the same manner as at the lower end of the plate member 52 shown in FIGS. Since these details are the same as those in the example shown in FIGS. 6 to 8, in order to avoid redundant description,
10 and 11 which are cross-sectional views of the example of FIG. 9, the same reference numerals as those of FIG. 7 and FIG.

It should be noted that the four frame members 24 of upper, lower, left and right
, A plurality of wooden plate members 26 opposed to these are hit with a plurality of nails 30 and are integrated with the frame member 24.

In the example shown in FIGS. 1, 3, 5 and 9, the steel member 28, which is a means for connecting each frame member 24 to the frame 14, is replaced with the above-mentioned steel bar. And bolts and nuts.

When the steel member 28 is used as the bolt / nut, one end of each bolt is fixed to the frame 14, and each frame member 24 is provided with a through hole for the other end of each bolt. The nut is screwed into the other end of the bolt protruding from the through hole.

By tightening the nut, the frame 1
4 or the degree of unity of the frame member 24 with the frame member 24, that is, the frame 1 when receiving the seismic force.
The magnitude of the frictional force generated between 4 and wall 22 can be arbitrarily determined.

[Brief description of the drawings]

FIG. 1 is a front view of an earthquake-resistant reinforcement structure of the present invention applied to an existing reinforced concrete building.

FIG. 2 is a partially enlarged perspective view for explaining connection between a part of a frame of a building and a part of a wooden wall.

FIG. 3 is a front view showing an application example of a wooden wall having a V-shaped brace.

FIG. 4 is a partially enlarged perspective view for explaining connection between a frame member of a wall body and a brace.

FIG. 5 is a front view showing an application example of a wooden wall having an X-shaped brace.

FIG. 6 is a front view of the seismic retrofit structure of the present invention applied to a newly constructed reinforced concrete building.

FIG. 7 is a partial cross-sectional view showing an arrangement relationship between a wooden wall body shown in FIG. 6 and a formwork for a pillar.

8 is a partial longitudinal sectional view showing an arrangement relationship between the wooden wall shown in FIG. 6 and a formwork for floor slabs and beams.

FIG. 9 is a front view of another earthquake-resistant reinforcement structure of the present invention applied to a newly constructed reinforced concrete building.

10 is a partial cross-sectional view similar to FIG. 7 for the example shown in FIG. 9;

11 is a partial longitudinal sectional view similar to that shown in FIG. 8 for the example shown in FIG. 9;

[Explanation of symbols]

 10, 50 Building 12 Seismic reinforcement structure 14 Building frame 22 Wooden wall 24 Wooden frame member 26 Wooden plate member 28 Steel member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuo Yamamoto 31-15, Sakuragaokacho, Shibuya-ku, Tokyo Sumitomo Seimei Shibuya Building 7F Orimoto Takumi Structural Design Laboratory Inc. (72) Inventor Kazuyoshi Tamura Shinjuku-ku, Tokyo 2-1 Tsukudo-cho Kumagai Gumi Co., Ltd. Tokyo head office F-term (reference) 2E176 AA02 BB28

Claims (11)

[Claims] 1. A seismic retrofit structure for a reinforced concrete or steel reinforced concrete building, comprising: a frame of the building, a wooden wall fitted into the frame, and connecting the wall to the frame. And a plurality of steel members extending from the frame into the wall. 2. The building comprises an existing building, wherein the wall includes a plurality of wooden frame members extending along a frame of the building, and each steel member is attached to the frame and each frame member. The structure according to claim 1, comprising a steel bar having both ends received in the provided holes and fixed to the frame and each frame member through an adhesive filled in the holes. 3. The structure according to claim 2, wherein the frame member has an injection hole for injecting the adhesive into each hole. 4. The building comprises an existing building, the wall includes a plurality of wooden frame members extending along a frame of the building, and each steel member includes a hole provided in the frame. The structure according to claim 1, further comprising: a bolt that is received in the frame, is fixed to the frame via an adhesive filled in the hole, passes through each frame member, and a nut screwed to the bolt. 5. The structure according to claim 2, further comprising at least a pair of opposed plate members, wherein each plate member is fixed to said frame member by nails or bolts and nuts. And a plurality of wooden braces, each brace being fixed to said frame member via a plurality of steel bars.
Each steel bar is received in a hole provided in the frame member,
And one end fixed to the frame member via an adhesive filled in the hole and a notch provided in the brace, and the brace is received through an adhesive filled in the notch. The structure according to claim 2, further comprising a second end fixed to the second end. 7. The building comprises an existing building, the wall includes a plurality of wooden braces, and each steel member comprises:
One end portion received in a hole provided in the frame and fixed to the frame via an adhesive filled in the hole, and received in a notch provided in the brace, and in the notch The structure of claim 1, comprising a steel bar having the other end secured to the brace via a filled adhesive. 8. The building comprises an existing building, the wall comprises at least one pair of mutually opposing wooden plate members bonded to each other, and each steel member is provided on a frame of the building. One end fixed to the frame via an adhesive filled in the hole and filled in the hole, and received in a hole defined by a notch provided in both plate members, and filled in the hole. The structure according to claim 1, comprising a steel bar having the other end fixed to both plate members via a provided adhesive. 9. The building comprises a new building, the wall comprises at least one wooden plate member, and the steel member comprises one end buried in a frame of the building, The seismic retrofit structure according to claim 1, comprising a steel bar received in a hole provided in the member and having the other end fixed to the plate member via an adhesive filled in the hole. 10. The building comprises a new building, the wall comprises at least one pair of mutually opposing wooden plate members bonded to each other, and the steel member is embedded in a frame of the building. The steel bar has one end portion and the other end portion which is received in a hole defined by a notch provided in both plate members and is fixed to both plate members via an adhesive filled in the hole. The structure of claim 1. 11. A seismic reinforcement structure for a steel frame building,
An earthquake-resistant reinforcement structure, comprising: a frame of the building; a wooden wall fitted into the frame; and a plurality of steel members extending from the frame into the wall, connecting the wall to the frame.