JPH10292639A - Aseismatic reinforcing method for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable solving the problems with conventional aseismatic reinforcing methods that because any of these methods uses anchors as main components in securing blockwork walls to columns, beams, etc., the anchors require a lot of troubles to install, and that noises and vibrations are caused if junction anchors are driven into the columns, etc. SOLUTION: An aseismatic reinforcing method for a building includes stacking unit blocks 5 within a plane surrounded by the columns 1, 2, beam 3, and floor 4 of the building to form a blockwork wall 6. In that case, the blocks 5 are bonded together with an adhesive material 7 for integration of the blockwork wall 6, and the outer peripheral surface of the blockwork wall 6, the columns 1, 2 around it, the beam 3, and the floor 4 are also bonded and integrated together with the adhesive material 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building seismic reinforcement method for reinforcing the seismic resistance of an existing building.

[0002]

2. Description of the Related Art As a prior art relating to a method of reinforcing a building for earthquake resistance, there is a method of reinforcing an existing building by stacking concrete blocks described in Japanese Patent Publication No. 57-12832. In this method, a concrete block of a special shape having a U-shaped inclined surface is loaded almost completely in the frame of the existing building, and the concrete block pile wall is reinforced with reinforcing bars anchored to columns and beams forming the frame And
The mortar is filled in the gap between the concrete block building wall and the frame to achieve structural integrity.

As another conventional technique, there is a method using a lattice-type block earthquake-resistant wall described in the Construction Newspaper (October 31, 1996). In this method, the unit lattice blocks containing steel plates are joined by high-strength bolts and integrated to form an earthquake-resistant wall. This earthquake-resistant wall is connected to the surrounding frame via spiral reinforcement and peripheral frame reinforcement. And is fixed to the joint anchor driven into the frame by the fixing plate.

[0004]

The above-mentioned conventional seismic retrofitting methods are all methods of fixing a block pile wall to a column, a beam, or the like, mainly using an anchor.
It takes a great deal of time to install the anchor, and when the anchor for joining is driven into a pillar or the like, the work of seismic reinforcement is performed without the occupants and users of the building due to the noise and vibration. That was impossible.

[0005] An object of the present invention is to solve the problems based on the above-mentioned method of fixing mainly with anchors.

[0006]

According to one aspect of the present invention, there is provided an earthquake-resistant building in which a unit block is stacked in a plane surrounded by pillars, beams and floors of the building to form a block stacking wall. In the reinforcing method, the blocks are adhered to each other with an adhesive material to integrate the block stacking wall, and the gap between the outer peripheral surface of the block stacking wall and each of the surrounding pillars, beams and floor is also bonded to the adhesive material. It is characterized by being bonded and integrated. According to the present invention, the fixing to the pillars and the like around the block stacking wall is performed firmly with an adhesive material. Since each unit block is also integrated with the adhesive material, no labor is required in this regard. Furthermore,
Since there is no problem of noise and vibration in the case of anchor driving, the work can be performed without the occupants.

According to a second aspect of the present invention, in the above-mentioned invention, the block stacking wall has a honeycomb structure. With this honeycomb structure, a lightweight and high-strength earthquake-resistant wall can be obtained.

According to a third aspect of the present invention, in the above invention, the unit block has a structure in which one diagonal line of a square frame is connected by a connecting portion. According to this square block, not only the reinforcement in the vertical and horizontal directions but also the reinforcement in the diagonally intersecting direction can be directly achieved by the connecting portion.

According to a fourth aspect of the present invention, there is provided a method for seismic reinforcement of a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of the building to form a block stacking wall. The unit blocks consisting of the rectangular cylinder structure partitioned by the above are fastened by male and female fastening structures to integrate the block stacking wall, and between the outer peripheral surface of the block stacking wall and the surrounding pillars, beams and floors, respectively. Is characterized by being integrated by bonding with an adhesive material. Thus, the earthquake-resistant wall can be easily formed by using the steel plate, and the installation of the anchor is not required. When only a plate-shaped steel plate is used, the resistance to the shearing force is small. However, in the present invention, the partition plate portion is reinforced by the surrounding rectangular cylindrical portion, so that the risk of buckling can be reduced.
In addition, there is an advantage that each unit block having a rectangular tube structure can be used as a storage box.

According to a fifth aspect of the present invention, in the above invention, the unit block is composed of two pieces of the partition steel plates separated from each other, and concrete is filled between the partition steel plates. The use of this concrete-filled unit block can further reduce the risk of buckling.

According to a sixth aspect of the present invention, there is provided a seismic retrofitting method for a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of the building to form a block stacking wall. And integrating the block stacking wall by bonding with an adhesive material between the outer peripheral surface of the block stacking wall and each of the pillars, beams and floor around the block stacking wall. is there.

According to a seventh aspect of the present invention, there is provided a method for seismic reinforcement of a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of the building to form a block pile wall. A steel plate frame is formed by bonding with an adhesive material, and a steel plate is fixed to this steel plate frame as a core material in a plane surrounded by the steel plate frame, and a unit concrete block is bonded and fixed to the core steel plate with an adhesive material. It is characterized by forming a block stacking wall while loading. According to the present invention, a steel sheet frame is firmly fixed to a column or a beam by an adhesive material, and a unit concrete block is stacked on a steel sheet as a core fixed to the steel sheet frame while being adhesively fixed to the steel sheet with an adhesive material. Therefore, a strong shear wall close to reinforced concrete can be obtained.

According to an eighth aspect of the present invention, there is provided a method for seismic reinforcement of a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of the building to form a block pile wall. Glued to the beam, floor and adhesive material,
A unit concrete block is put in each frame of the lattice-shaped steel plate, and is fixed by bonding with an adhesive material to form a block stacking wall. By using a combination of a lattice-like steel plate and a unit concrete block and using an adhesive material for fixing the same, the structure and assembly are simplified, and a strong earthquake-resistant wall is obtained.

According to a ninth aspect of the present invention, two bases are provided diagonally by bonding the bases of both ends of the long brace to four corners in a plane surrounded by columns, beams and floor of the building with an adhesive material. This is a method for seismic retrofitting of buildings. This eliminates the problem of noise and vibration associated with the driving of the joining anchor as in the conventional brace reinforcing method.

According to a tenth aspect of the present invention, in the above invention, the brace has a structure that is rigid with respect to a compressive force and flexibly follows a tensile force. As described above, the rigid structure which resists the compressive deformation but conversely follows the tensile deformation enables the function as the seismic element to be surely exerted even in an earthquake where a deformation force is applied from multiple directions.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples shown in the drawings. [Embodiment 1] FIG. 1 is a front view showing a first embodiment, and FIG. 2 is an enlarged front view of a main part thereof. Pillar 1 of the building,
2, the unit blocks 5 are stacked in a plane surrounded by the beams 3 and the floor 4 to form a block stacking wall 6. In this example, the unit block 5 is made of lightweight concrete having a specific gravity of about 1.2, and is a regular hexagonal cylinder. A spiral line 8 is contained in the unit block 5 as a core material. The unit blocks 5 are adhered to each other with an adhesive material 7 and integrated to form a block-stacking wall 6 having a honeycomb structure. Light can be collected by the honeycomb structure. Then, the outer peripheral surface of the block stacking wall 6 and each of the pillars 1, 2, the beam 3 and the floor 4 around the block stacking wall 6 are also bonded with the bonding material 7 to be integrated. here,
As the adhesive material, a strong adhesive material having a fast curing property is used.

The outer peripheral surface of the block stacking wall 6 has an uneven shape, and there is a portion that cannot be brought into surface contact with the surface of the opposing column or beam. This portion may be filled with an adhesive material.
Alternatively, a spacer 9 (see FIG. 2) made of a lightweight block may be interposed. Further, the fixing of the block stacking wall 6 to the columns, beams, etc. is performed by the adhesive material 7, but a small anchor may be provided to assist the fixing force of the adhesive material.

According to this embodiment, the block stacking wall 6 is firmly fixed to the surrounding pillars or the like with the adhesive material 7, and the unit blocks are also integrated with the adhesive material. There is no problem of vibration, and there is no need for installation.

[Embodiment 2] FIG. 3 is a front view showing another embodiment of the present invention. In this example, the unit block 5 has a structure in which one diagonal line of a square frame 10 is connected by a connecting portion 11. The material of the unit block 5 is lightweight concrete having a specific gravity of about 1.2. As shown in FIG. 4, two unit blocks 5 are joined with an adhesive material. Reinforcing bars 12 are arranged around the periphery and are sequentially stacked, and integrated as shown in FIG. In other words, the block stacking wall 6 has the reinforcing bars 12 arranged in a lattice shape, and the unit blocks 5 are arranged in each square lattice.
Is present, and the unit blocks 5 and the unit blocks 5 and the reinforcing bars 12 are bonded with an adhesive material. And the block pile wall 6 and the surrounding pillars 1, 2 and beams 3
The floor and the floor 4 are firmly fixed by an adhesive material 7 via a frame 13.

According to the square unit block 5, reinforcement in the vertical and horizontal directions can be performed by the frame 10 portion, and a plurality of reinforcing portions crossing at an oblique angle of 45 degrees can be formed by connecting the connecting portions 11. Diagonal reinforcement is sufficient.

[Embodiment 3] FIG. 5 is a front view showing another embodiment of the present invention, and FIGS. 6 and 7 are perspective views of a unit block for forming the earthquake-resistant wall of FIG. The unit block 5 in this example is made up of a steel plate-made square tube body 15 that is partitioned by a partition steel plate 14 at substantially the center in the depth direction. A number of bolts 16 protrude from the upper surface and the left surface of the rectangular cylinder 15.
Also, a large number of holes 17 having a size into which the bolt 16 can be inserted are formed in the lower surface and the right surface. The unit blocks 5 connect the bolts 16 of one block 5 to the other blocks 5.
Into the holes 17 and fastened by a male / female fastening structure that is fastened with nuts (not shown) to integrate the block stacking wall 6.

However, among the unit blocks 5, those located at the outermost periphery of the block stacking wall 6 are as shown in FIG.
It is a structure without the bolts 16 and opposes the columns 1, 2 and beams 3
It is formed so as to make surface contact with the like. An adhesive material 7 is filled in the gap to be the surface contact portion and is fixed by bonding. In this example, the fixing of the block stacking wall 6 to the pillars 1 and 2 and the beams 3 and the like is performed by the adhesive material 7, but a small anchor 18 is provided to assist the fixing force of the adhesive material 7. ing.

Here, when the earthquake-resistant wall is formed by using only the plate-shaped steel plate, the resistance against the shearing force is generally small. However, in the present invention, since the partition steel plate 14 is reinforced by the square cylindrical body 15, the buckling is performed. Fear can be reduced. In addition, in the state of the completed earthquake-resistant wall, each unit block 5 can be used as a storage box as can be seen from FIG. In addition, as shown in FIG.
Can be provided so as to allow passage therethrough.

[Embodiment 4] FIG. 8 is a perspective view of a unit block showing another embodiment of the present invention, and FIG. 9 is a perspective view of a unit block located on an outer peripheral portion of a block stacking wall. The structure is basically the same as the example shown in FIGS. 6 and 7, but in this example, two partition steel plates 14 are separated from each other, and concrete 19 is filled between each partition steel plate 14. I have. Reference numeral 20 denotes a hole formed in the upper surface of the rectangular cylinder 15 for filling concrete. By using the concrete-filled unit block 5, the possibility of buckling can be further reduced as compared with the structure shown in FIG.

[Fifth Embodiment] FIG. 10 is a front view showing another embodiment of the present invention. In this example, the unit block 5 has a cotter type joint structure as an example of the fastening structure 21, and the blocks 5 are fastened by the fastening structure 21 to integrate the block stacking wall 6. Other structures are the same as those shown in FIG. 5, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

[Embodiment 6] FIG. 11 is a cross sectional view showing another embodiment of the present invention, FIG.
FIG. 13 is a side sectional view, and FIG. 14 is a front view at the time of completion. In this example, first, a steel plate is bonded to the columns 1, 2, the beam 3 and the floor 4 with an adhesive material 7 to form a steel plate frame 22. Then, a plate-like steel material 23 is fixed to the steel plate frame 22 as a core material in a plane surrounded by the frame. The steel material 23 as the core material is not limited to a plate shape, but may be a rod shape or the like. This fixing is performed by bolt-nut fastening. And
The unit concrete block 5 is stacked on the core steel material 23 while being bonded and fixed with the bonding material 7 to form the block stacking wall 6. That is, the bonding between the unit blocks 5 and between the unit blocks 5 and the core steel 23 are performed with the adhesive material 7. Here, the unit concrete block 5 is made of lightweight concrete. Note that, in this example, the steel plate frame 22 is fixed to the columns 1, 2 and the beams 3 and the like by the adhesive material 7, but an anchor 18 is provided slightly to assist the fixing force of the adhesive material 7. I have.

According to this embodiment, the unit concrete blocks 5 are stacked on the core steel member 23 attached to the steel plate frame 22 firmly fixed to the columns or beams by the bonding material 7 while being bonded and fixed with the bonding material 7. Since the block pile wall 6 is formed, the shear strength is improved, and an earthquake-resistant wall having a strength close to that of concrete with reinforced concrete can be obtained. If the unit concrete blocks 5 are also adhered to each other with an adhesive material, it is possible to form a higher-strength block pile wall 6.

[Embodiment 7] FIG. 15 is a transverse sectional view showing another embodiment of the present invention, FIG. 16 is a front view, and FIG. 17 is a side sectional view. In this example, first, the outer peripheral surface of the lattice-shaped steel plate 24 is bonded to the columns 1, 2, the beam 3 and the floor 4 with the bonding material 7. Next, the unit concrete block 5 is put into each ramen of the lattice-like steel plate 24. The gap between each block 5 and the lattice-shaped steel plate 24 is filled with an adhesive material 7 and fixed by adhesion.
The integrated block pile wall 6 is formed. The other structure is the same as that of the example shown in FIGS. 11 to 14, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

Eighth Embodiment FIG. 18 is a front view showing another embodiment of the present invention. In this example, a reinforcing method using a so-called brace is applied, and bases 26 at both ends of a long brace 25 are bonded to four corners in a plane surrounded by pillars 1, 2, beams 3 and floor 4 of a building with an adhesive material 7. It is fixed and provided with two braces 25 in a diagonal line. Since the brace reinforcement of this example is also fixed to the periphery by the adhesive material 7 and integrated,
The problem of noise and vibration when using a conventional anchor is eliminated. Further, in this example, the brace 25 has a structure in which the connection with the base 26 is provided with the nut 27 only at one end side, and the structure is rigid against the compressive force and flexible following the tensile force. Even in an earthquake in which deformation force is applied from multiple directions, the function as a seismic element can be surely exhibited.

[0030]

According to the present invention, since the fixing of the earthquake-resistant wall is basically performed by the adhesive material, the problem based on the conventional fixing method mainly using the anchor can be solved.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of FIG.

FIG. 3 is a front view showing another embodiment of the present invention.

FIG. 4 is a sectional view of a main part of FIG. 3;

FIG. 5 is a front view showing another embodiment of the present invention.

FIG. 6 is a perspective view of a unit block for forming the earthquake-resistant wall of FIG. 5;

FIG. 7 is a perspective view of another unit block for forming the earthquake-resistant wall of FIG. 5;

FIG. 8 is a perspective view of a unit block showing another embodiment of the present invention.

FIG. 9 is a perspective view of another unit block showing another embodiment of the present invention.

FIG. 10 is a front view showing another embodiment of the present invention.

FIG. 11 is a cross-sectional view showing another embodiment of the present invention.

FIG. 12 is a front view of a step in the middle of the embodiment of FIG. 11;

FIG. 13 is a side sectional view of the embodiment of FIG. 11;

FIG. 14 is a front view of the embodiment of FIG. 11 when it is completed.

FIG. 15 is a cross-sectional view showing another embodiment of the present invention.

FIG. 16 is a front view of the embodiment of FIG.

FIG. 17 is a side sectional view of the embodiment of FIG.

FIG. 18 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

 1, 2 pillar 3 beam 4 floor 5 unit block 6 block pile wall 7 adhesive material 14 partition steel plate 15 square cylinder 16 bolt 17 hole 19 concrete 21 fastening structure (cotter joint structure) 22 steel plate frame 23 core material steel plate 24 lattice Steel plate 25 braces

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomoyuki Watanabe 2-10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (72) Inventor Kenichi Iso 4-9-1-9 Akasaka, Minato-ku, Tokyo Japan Land Development Co., Ltd.

Claims (10)

[Claims] 1. A seismic retrofitting method for a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of a building to form a block stacking wall. A method for seismic reinforcement of a building, comprising unifying a wall and bonding an outer peripheral surface of the block-stacked wall and each of its surrounding columns, beams and floor with an adhesive material. 2. The method of claim 1, wherein the block wall has a honeycomb structure. 3. The method according to claim 1, wherein the unit block has a structure in which one diagonal line of a square frame is connected by a connecting portion. 4. A seismic retrofitting method for a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of a building to form a block stacking wall, wherein a substantially center in a depth direction is partitioned by a partition steel plate. Unit blocks consisting of a tubular structure are fastened together by a male and female fastening structure to integrate the block stacking wall, and the outer peripheral surface of the block stacking wall and its surrounding columns,
A seismic retrofitting method for a building, wherein a beam and a floor are bonded to each other with an adhesive material and integrated. 5. The method according to claim 4, wherein the unit block comprises two partition steel plates separated from each other, and concrete is filled between the partition steel plates. 6. A seismic retrofit method for a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of a building to form a block stacking wall, wherein the blocks are fastened by a fastening structure. And an outer peripheral surface of the block-stacking wall and each of the surrounding pillars, beams and floor are adhered and integrated with an adhesive material. 7. A method for seismic reinforcement of a building in which unit blocks are stacked in a plane surrounded by columns, beams and floors of a building to form a block pile wall, first, a steel plate is bonded to columns, beams and floors with an adhesive material. Forming a steel plate frame, fixing a steel material as a core material in the plane surrounded by the steel plate frame to the steel plate frame, stacking the unit concrete block on the core steel material while bonding and fixing the unit concrete block with an adhesive material. A seismic retrofitting method for a building, characterized by forming a masonry wall. 8. A seismic retrofitting method for a building in which unit blocks are stacked in a plane surrounded by pillars, beams and floors of a building to form a block piled wall, first, an outer peripheral surface of a grid-like steel plate is applied to columns, beams and floors. A seismic retrofitting method for a building, comprising: adhering with an adhesive material; inserting a unit concrete block into each frame of the lattice-shaped steel plate; and adhering and fixing with an adhesive material to form a block pile wall. 9. An anti-seismic building wherein the bases at both ends of the brace are fixed to four corners in a plane surrounded by pillars, beams and floor of the building with an adhesive material, and two braces are provided diagonally. Reinforcement method. 10. The method according to claim 9, wherein the brace has a structure that is rigid against a compressive force and flexibly follows a tensile force.