JP3406969B2 - Seismic reinforcement structure and its construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-proof reinforcing structure applicable to old and new wooden buildings and an improvement in its construction method.

[0002]

2. Description of the Related Art In the conventional construction method, a wooden square timber is fixed on a concrete foundation with anchor bolts, and a tenon projecting from a pedestal column base is fitted into a tenon hole engraved on the upper surface of the base of the square timber. It was fixed at least. In the 1995 Great Hanshin-Awaji Earthquake, many human lives were lost due to the collapse of an old wooden building. Is recommended (January 10, 1997, Japan Construction Disaster Prevention Association, “Seismic Precision Diagnosis and Reinforcement Method for Wooden Houses”, pages 51 to 52, see FIG. 16).

[0003]

Although the above-mentioned reinforcement by the metal is simple, the resistance against the pulling force cannot be increased so much, so it is necessary to use a large number, and it is difficult to resist the tenon crease and it is easy to corrode. In addition, there was a problem that it was difficult to use it to reinforce an old building. On the other hand, the present invention can be applied to multi-specific buildings regardless of old and new,
An object of the present invention is to obtain a simple seismic reinforced structure which is excellent in corrosion resistance, can drastically increase the resistance to pulling force, and can also resist mortice and its construction method.

[0004]

In order to achieve the above-mentioned object, the present invention is, in the invention of claim 1, in an earthquake-proof reinforcing structure of a foundation, a foundation and a building column, in which upper and lower longitudinal upper fixing portions are provided. An upper member having an upper connecting portion that is formed in a hollow shape having a convex section and has a hole on the front and rear sides of the intermediate flat portion, the upper connecting portion protruding from the front side of the lower end portion of the upper fixing portion, An intermediate member having an upper part formed in a hollow shape having a convex cross-section capable of being fitted to the upper connecting part, and having holes formed in front, back, front, back, left and right, a plate-shaped mounting part, and a projection in a front direction perpendicular to the mounting part. A lower member having a receiving plate provided with holes formed in front, rear, left, and right, an upper cushioning member having a convex cross-section, having holes formed in the front, rear, left, and right of the intermediate flat portion, and a pair of substantially rectangular parallelepiped lower cushioning members , U
A fixture in the shape of a letter, the mounting portion is fixed to the foundation, the upper fixing portion is fixed to the body pillar, the receiving plate and the intermediate member are fixed by the fixing member, and the inner surface of the upper connecting portion The upper cushioning member is fixed between the upper portion and the intermediate member by the fastener, and the lower cushioning member is interposed between the left and right sides of the intermediate member and the upper connecting portion, and the upper and lower cushioning members are elastically deformed against earthquake motion. The problem was solved by the seismic strengthening structure that was able to be absorbed by. According to the invention of claim 2, as a lower member, a receiving plate projecting from the upper edge of the vertical support plate in the front direction at right angles and a mounting portion projecting from the lower edge of the support plate in the front direction at right angles, or The earthquake-proof reinforcing structure according to claim 1 having an embedded portion having a downward facing piece. In the invention of claim 3, one large hole and a plurality of small holes around the large hole are combined to form a plurality of sets with a space between the upper portion and the lower portion of the upper fixing portion. It is preferable that the seismic reinforcement structure according to claim 1 or 2 is configured such that large and small lug bolts are respectively pierced through the large hole and the small hole so that the upper fixing portion can be fixed to the body pillar. According to the invention of claim 4, the hole formed in the upper surface of the intermediate member is a longitudinal hole whose longitudinal direction is front and back, and the hole formed in the lower surface is an elongated hole whose longitudinal direction is left and right and is formed in the upper cushioning member. It is preferable to use the seismic reinforcing structure according to any one of claims 1 to 3 in which the opened hole is an elongated hole whose longitudinal direction is front and rear. According to the invention of claim 5, a bracket is provided so as to project from the upper fixing portion to the front surface, and the bracket can be fixed to the bracket and can substantially surround all or part of the upper member, the intermediate member and the lower member from the front surface. The earthquake-proof reinforcing structure according to any one of claims 1 to 4 including a cover can be provided.

According to a sixth aspect of the present invention, there is provided the seismic reinforcement structure according to the fifth aspect, in which a vent is provided in a lower portion of the front surface of the cover, and a drainer is provided on the back side of the vent. it can. According to the invention of claim 7, the lower member is fixed to the foundation with the receiving plate horizontal and aligned with the lateral center position of the body pillar, and the intermediate member is placed on the receiving plate and the receiving plate and the intermediate member. The U-shaped fastener is inserted downward into the hole in the flat portion of the lower surface and temporarily fixed, and the upper member is fixed to the upper fixing portion and the upper connecting portion is turned downward. And temporarily set by inserting a lower cushioning member between the left and right of the intermediate member, and then fixing the intermediate member on the receiving plate by aligning the centers of the upper fixing portion and the body pillar. After marking a plurality of large and small hole positions formed in the fixing portion on the body pillar, the upper member is removed, a hole having a diameter smaller than the lug bolt is drilled at the marking position, and the upper connecting portion is again formed into a convex shape of the intermediate member. Fit it on the hollowed out upper part and temporarily set it up. The upper fixing portion is fixed to the body pillar by penetrating a bolt, and the upper cushioning member is inserted from the front side into the gap between the inner surface upper portion of the upper connecting portion and the intermediate member, and the intermediate member upper surface flat portion, the upper cushioning member. And a method of constructing an earthquake-proof reinforcing structure in which the fastener is inserted upward and fixed in each hole of the upper connecting portion. According to the invention of claim 8, the longitudinal direction is such that the holes in the upper flat portion of the intermediate member are front and back, the holes in the lower flat portion are left and right, and the holes of the upper cushioning member are front and rear, respectively, and are temporarily fixed. Loosen the tool and adjust the left and right position of the intermediate member, align the centers of the upper fixing portion and the body pillar, and finally tighten the intermediate member to fix it on the receiving plate. The seismic reinforcement structure according to claim 7, wherein the upper connecting portion, the upper cushioning member, and the intermediate member are fixed by loosening a fastener inserted upward in the elongated hole of the upper cushioning member, adjusting the front-rear position, and finally tightening. The construction method is preferable.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. Drawing 1 shows the whole outline of an example of the seismic-proof reinforcement structure of the present invention, and is a (a) front view and a (b) side view. FIG. 2 is a partial schematic perspective view of an upper member used for the seismic reinforcement structure of FIG. 1. FIG. 3 is a schematic perspective view of an intermediate member used in the seismic reinforcement structure of FIG. 1. FIG. 4 is a side view (a) and a plan view (b) of a fastener used for the seismic reinforcement structure of FIG. 1. FIG. 5 is a schematic perspective view for the upper part (a) and the lower part (b) of the cushioning member used in the seismic reinforcement structure of FIG. 1. FIG. 6 is a schematic perspective view or front view of modified examples (a) to (d) of the lower member used in the seismic reinforcement structure of FIG. 1. Figure 7
FIG. 3 is a schematic perspective view or front view of another modification example (a) to (c) of the lower member used for the seismic reinforcement structure of FIG. 1. Figure 8
Is (a) a partial schematic perspective view of the cover used for the seismic reinforcement structure of FIG. 1, (b) X-X line sectional view, (c) Y-Y line sectional view, (d) Z direction from the back surface. FIG. In the following, description will be made in a state where the outer side of the building pillar is the front, the inside of the building is the rear, the building pillar is the left and right when viewed from the outside, and each member is assembled.

The earthquake-proof reinforcing structure 1 is provided with an upper member 2, an intermediate member 3, a lower member 4, fasteners 5, cushioning members 6a and 6b, and a cover 8 if necessary. Unless otherwise specified, a metal material is usually used, and an iron plate or a stainless plate having a thickness of about 6 mm, which is plated for corrosion resistance, is usually used. 1 and 2, the upper member 2 includes an upper fixing portion 2a having a vertically long and thin plate shape, and an upper connecting portion 2b which is fixed and protrudes from the lower end front side of the upper fixing portion 2a and has a convex surface and inner surface when viewed from the front side. , A large hole 2d in a left-right zigzag pattern and a plurality of small holes 2e formed in combination around the large hole 2d with a space between the upper portion and the lower portion of the upper fixed portion 2a. ing.
Further, if necessary, at least a pair of brackets 2c, 2c are provided at a distance from the front surface or the side surface of the upper fixing portion 2a to the upper and lower portions so as to avoid the large hole 2d and the small hole 2e. Here, four small holes 2e are usually formed except one set at the lowermost end, and one set at the lowermost end has three small holes 2e and is formed in the left and right central portions, and at the upper end portion of the upper connecting portion 2b. Proximity is possible. As an example, the upper member 2 has a vertical length of 900 mm.
Thus, nine sets of the large holes 2d and the small holes 2e are arranged vertically. The upper connecting portion 2b is symmetrical with respect to the upper flat portion 21.
And intermediate flat portions 23, 23 and lower flat portions 25, 25
And upper vertical portions 22 and 22 connecting the upper flat portion 21 and the intermediate flat portions 23 and 23, and lower vertical portions 24 and 24 connecting the intermediate flat portions 23 and 23 and the lower flat portions 25 and 25.
A vertical plate-shaped upper reinforcing portion 26, which is formed in a hollow shape having a convex inner and outer cross-section, and which is vertically erected in the left-right center portion of the upper surface flat portion 21, lower vertical portions 24, 24, and a lower surface flat portion. 25, 25 and a pair of left and right side reinforcing portions 27, 27 having a substantially triangular plate shape. In the left and right intermediate flat portions 23, 23, a pair of circular holes 28 through which the fastener 5 can be inserted are formed in the front and rear, respectively, for a total of four round holes 28. If necessary, the brackets 2c and 2c form a T shape by fixing the vertical pieces 292 and 292 to the front ends of the horizontal projecting pieces 291, 291. The vertical holes 292 have screw holes 29 through which the cover 8 can be attached.
3, 293 are drilled.

In FIGS. 1 and 3, the intermediate member 3 is bilaterally symmetrical, and has an upper surface flat portion 31, intermediate flat portions 33, 33, a lower surface flat portion 35, an upper surface flat portion 31, and intermediate flat portions 33, 33.
The upper vertical portions 32, 32 connecting between and the intermediate flat portion 3
Lower vertical portion 3 connecting the lower surface flat portion 35
4 and 34 are formed in a hollow shape having a convex inner and outer cross section, and on the inner surfaces of the left and right lower vertical portions 24, 24 of the upper connecting portion 2b,
The convex upper part formed by the upper surface flat part 31 and the left and right upper vertical parts 32, 32 is sized to fit.
On the right and left sides of the upper flat portion 31, there are four elliptical holes 38 which can be fitted loosely by adjusting the fixing tool 5 in combination with the four round holes 28 of the intermediate flat portions 23, 23 in a longitudinal direction in the front-back direction, and a total of four holes. A total of four elliptical holes 37 are formed in the front and rear surfaces of the lower surface flat portion 35 at right angles to the elliptical holes 38 with the longitudinal direction being left and right. The lower member 4 has various modifications (4a to 4 of the first to seventh examples) depending on the structural arrangement of the foundation and the wall of the building.
g) , first, the first example 4a of FIG. 1 and the front view of FIG. 6A will be described. The lower member first example 4a is a horizontally long rectangular plate-shaped mounting portion 41, and a flat surface that is substantially the same size as the lower surface flat portion 35 of the intermediate member 3 and projects forward from the center of the upper edge of the mounting portion 41 at a right angle. And a lower reinforcing portion 43 that is fixed to the mounting portion 41 to support and reinforce the lower surface of the receiving plate 42 in the vertical and left-right inclined directions, and a plurality of fixing holes 44 are formed in appropriate places on the entire surface of the mounting portion 41. A total of four round holes 45 are provided in the receiving plate 42 so that the centers thereof are substantially aligned with the left, right, front, and rear pitches of the oval holes 37 of the intermediate member 3 so that the fixture 5 described later can pass through. It is said that.

As shown in FIG. 4, the fastener 5 is formed by bending a metal round bar 52 into a U-shape and engraving a male screw 53 on a straight line portion at a symmetrical position so that a separately prepared nut can be screwed.
The round bar 52 is preferably plated with iron or made of stainless steel for corrosion resistance. As an example, plated iron having a diameter of 12 mm is used. In the following description of the mode of use, the upward direction of the U-shaped opening will be upward and the downward direction of the opposite opening will be downward. The cushioning members 6a and 6b are shown in FIG. 5 (a) upper part and (b) lower part 2
There are types. These cushioning members are made of natural or synthetic rubber. The upper cushioning member 6a is symmetrical with respect to the upper surface flat portion 61, the intermediate flat portions 63, 63, and the lower surface flat portion 65.
And an upper vertical portion 62, 62 connecting the upper flat portion 61 and the intermediate flat portions 63, 63, and a lower vertical portion 64, 64 connecting the intermediate flat portions 63, 63 and the lower flat portion 65 with a convex cross section. And a cross-section convex formed in the intermediate flat portions 63, 63 by the upper flat portion 21, the upper vertical portions 22, 22, the intermediate flat portions 23, 23 and the lower vertical portions 24, 24 of the upper connecting portion 2b. The size is such that the convex shape of the cross section of the upper cushioning member 6a can be fitted on the inner surface of the punched shape. Intermediate flat portion 63,
In the front and rear 63, a pair of four elliptical holes 66, through which the fixing tool 5 can be inserted, are formed in alignment with the elliptical holes 38 of the intermediate member 3. The oval holes 37, 38, 66 may be circular holes in the case of a building in which centering is easy, such as when the wall of the building pillar 9 is peeled off, which will be described later.
In order to flexibly cope with construction with multiple specifications or unknown wall thickness, adjustable long holes, such as oval holes, rectangular holes, and long holes with polygonal or curved parts formed at the ends are used. Is preferable, and it is most convenient to use an oval hole. The lower cushioning member 6b has a substantially rectangular parallelepiped shape, and a pair of left and right intermediate flat portions 33, 33 of the intermediate member 3 and the upper connecting portion 2 are provided.
The size is such that it can be interposed between the left and right lower surface flat portions 25, 25 of b.

Next, another example of the lower member 4 will be described. In the following description, components that are the same as those of the lower member first example 4a are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 6B is a perspective view of the second example 4b of the lower member, and unlike the first example 4a, the flat receiving plate 42 is provided at the left end of the upper edge of the mounting portion 41 at a right angle so as to project forward. . FIG. 6C is a perspective view of the lower member third example 4c, in which the planar receiving plate 42 is different from the first example 4a and the second example 4b in the forward direction at a right angle to the upper edge right end of the mounting portion 41. It is projected. FIG. 6D is a perspective view of the lower member fourth example 4d, in which the planar receiving plate 42 is the same as in the third example 4c.
1. The right side end portion of the upper edge of the No. 1 is protruded at a right angle in the forward direction. Further, a square plate-shaped side surface mounting portion 46 is connected to the right end portion of the side surface of the mounting portion 41 at the rear side in the direction perpendicular to the surface of the mounting portion 41. Then, a plurality of fixing holes 44 are formed in appropriate places on the entire surface of the side surface mounting portion 46.

FIG. 7 (a) is a front view of a lower member fifth example 4e, which is a vertically long rectangular plate-shaped mounting portion 47 and is provided at the center of the upper edge of the mounting portion 47 at a right angle so as to project in the forward direction. Intermediate member 3
The lower surface flat portion 35 has a flat receiving plate 42 having substantially the same size as the lower flat portion 35, and the lower reinforcing portion 43 fixed to the mounting portion 47 to support and reinforce the lower surface of the receiving plate 42 in the vertical and left-right inclined directions.
A plurality of fixing holes 44 are formed at appropriate positions on the entire surface of the receiving plate 7
A total of four round holes 45 are formed in 2 so that the centers thereof are substantially aligned with the pitches of the oval holes 37 of the intermediate member 3 in the left-right and front-back directions, and the fixture 5 can be penetrated. FIG. 7B is a perspective view of a lower member sixth example 4f, and is a lower member fifth example 4e.
Support plate 48 of the same shape as that in the vertical direction. Horizontally long rectangular plate-shaped mounting portion 49 projecting in the front direction at a right angle to the lower edge of the support plate 48.
Is stuck. A rectangular plate-shaped reinforcing portion 50 is fixed across the central portion of the lower end of the support plate 48 and the central portion of the rear end of the mounting portion 49. A plurality of fixing holes 44 are formed at appropriate positions on the entire surface of the mounting portion 49. FIG. 7C is a front view of the lower member seventh example 4g, which has a substantially U-shape with a downward piece in which a fixing hole 44 is not formed in place of the mounting portion 49 of the lower member sixth example 4f. The embedding portion 51 is provided so as to project with the horizontally long surface in the horizontal direction in the front direction perpendicular to the lower edge of the support plate 48.

The cover 8 is attached if necessary, and is made of metal, for example, plate-shaped iron, stainless steel, as shown in FIG.
FIG. 8 is a cross-sectional view of the upper fixing portion 2a of the upper member 2, which is made of aluminum or the like or is made of hard plastic and substantially surrounds the upper fixing portion 2a from the front surface.
FIG. 8C is a cross-sectional view that substantially surrounds the boat-shaped upper portion 8a, the upper coupling portion 2b, and the intermediate member 3 shown in FIG. 8B, and the receiving plate 42 of the lower member 4 from the front. It consists of a box-shaped lower part 8c which substantially surrounds the ship-shaped upper part 8a.
On the upper and lower parts of the front of the bracket
A pair of fixing holes 81, 8 into which the bolts can be inserted
A total of four holes are drilled. The sectional shape of the cover 8 is not limited to the above, and may be a curved surface, a polygonal surface, or a combination thereof as long as it substantially surrounds each member from the front surface. Further, the cover 8 is not limited to the configuration that substantially surrounds the upper member 2, the intermediate member 3, and the receiving plate 42 of the lower member 4 described above, and the whole or the upper member 2 including the other parts of the lower member 4 is also included. Alternatively, the intermediate member 3 and a part of the lower member 4 may be selectively surrounded substantially. Further, if necessary, a slight slit-like vent hole 82 is formed on the left and right in the vicinity of the lower portion of the front surface, for example, the boundary between the middle portion 8b of the boat and the lower portion 8c of the box, so that when the cover 8 is attached, it is possible to ventilate the rear surface. .
When the ventilation hole 82 is provided, for example, as shown in FIG.
As shown in (c) and (d), the ventilation holes 82 are provided to the side plates 8d and 8d.
A drainer 83 is provided, which is surrounded by e and the bottom plate 8f, and has a bottom slope of 8f to prevent water from entering.

Next, the construction and operation of the seismic strengthening structure 1 will be described. The description will be given only for one frame pillar 9, but the appropriate number is installed according to the construction site. Figure 1
As shown in, concrete 1 as in the conventional method
Wooden base 1 on cloth foundation 11 consisting of 1a and rebar 11b
0 are fixed with anchor bolts (not shown) at appropriate intervals, and the tenon 9a projecting from the leg of the body pillar 9 is fitted into the tenon hole 10a formed on the upper surface of the base 10 so that the body pillar 9 is It is standing. In the earthquake-proof reinforcement structure 1, first, chemical anchor bolts are inserted into the fixing holes 44 of the mounting portion 41 of the lower member first example 4a and holes preliminarily formed in the lower front surface of the ready-made foundation 11 to attach the lower member 4a. The level of the upper surface of the receiving plate 42 is made horizontal, and it is fixed to the foundation 11 by arranging it substantially at the center of the left and right of the body pillar 9. When the foundation 11 is newly made, the anchor bolts may be embedded at the same time as the foundation is made. Support plate 42
Place the intermediate member 3 on the upper surface with the lower surface flat portion 35 aligned,
A pair of left and right fasteners 5 are inserted downwards over the front and rear oval holes 37 and round holes 45, and temporarily fixed by nuts from below. At this time, the left and right intermediate flat portions 3 of the intermediate member 3 are preliminarily arranged with the pair of lower cushioning members 6b in the longitudinal direction.
3, 33, or the lower cushioning member 6b is adhered to the lower surfaces of the left and right lower flat portions 25, 25 of the upper connecting portion 2b of the upper member 2a with the longitudinal direction of the lower cushioning member 6b in the longitudinal direction.

Next, the upper member 2 is placed with the upper fixing portion 2a on the upper side and the upper connecting portion 2b on the lower side.
1 abutting along the front surface of the upper part, and a convex shape formed by the upper surface flat part 31 of the intermediate member 3 and the left and right upper vertical parts 32, 32 on the inner surfaces of the left and right lower vertical parts 24, 24 of the upper connecting part 2b. Fit the upper part and set temporarily. At this time, a pair of lower cushioning members 6b, 6b are interposed between the left and right intermediate flat portions 33, 33 and the lower flat portions 25, 25, and the upper flat portion 21,
Between the upper surface flat portion 31 of the intermediate member 3 and the upper surface of the intermediate connecting member 2b formed by the upper vertical portions 22 and 22, the intermediate flat portions 23 and 23, and the lower vertical portions 24 and 24, the convex inner cross-section inner surface of the intermediate connecting member 3 is formed. An upper cushioning member 6a having a convex cross-section can be inserted into the void from the front side by forming a void. At this time, if it is necessary to confirm the center positions of the upper fixing portion 2a and the skeleton column 9 and move them to the left or right, loosen the nut of the temporarily fixed fixing device 5 and move the intermediate member 3 to either the left or right. The oval hole 37 allows easy left / right adjustment. After the positioning is completed, the nut is fully tightened to fix the intermediate member 3 to the upper surface of the receiving plate 42.

Next, at this position, the positions of the plurality of large holes 2d and small holes 2e of the upper fixing portion 2a are marked on the body pillar 9 to prepare for drilling for screwing the lug bolts 7a, 7b.
After the marking on the body pillar 9 is completed, the upper member 2 is once removed, and a hole of about 1/2 the diameter of the lug bolts 7a and 7b is drilled at the marking position on the body pillar 9. When the drilling is completed, the upper member 2 is temporarily set again in the same manner as described above, the lug bolts 7a and 7b are passed through the large hole 2d and the small hole 2e, respectively, and the upper fixing portion 2a is screwed into the body pillar 9 on the rear side. It is firmly fixed to the body pillar 9. Here, the lug bolt 7a has a large diameter, the lug bolt 7b has a small diameter, and the lengths of both are long.
A having a diameter of 12 mm and a length of 100 mm and a lug bolt 7b having a diameter of 6 mm and a length of 100 mm are used.
This is done in order to prevent the lag bolt from having a difference in fixing force depending on the wood quality of the skeleton column 9 as much as possible.
In the brackets 2c and 2c, vertical pieces 292 are provided in a protruding state on the upper and lower portions of the front surface of the upper fixing portion 2a.

Next, the upper cushioning member 6a having a convex cross-section is inserted from the front side into the space between the upper inner flat surface 31 and the hollow upper surface of the upper connecting portion 2b having the convex cross-section, and the left and right sides of the intermediate member 3 are inserted. A pair of front and rear fasteners 5 are inserted upward through the oval holes 38, 38 and the left and right oval holes 66, 66 of the intermediate cushioning portion 63 of the upper cushioning member 6a and the left and right circular holes 28, 28 of the upper connecting portion 2b. Although it is positioned in the front-back direction, it can be easily adjusted in the front-back direction because of the oval holes 38 and 66. After the positioning, a nut is screwed in from the upper end of the fastener 5 to fix the upper cushioning member 6a to the upper flat portion 31 and the intermediate flat portion 23, and the assembly of the seismic reinforcing structure 1 is completed. Further, if necessary, the cover 8 is attached to the upper and lower brackets 2.
c, 2c abutting the vertical pieces 292, 292 and fixing holes 81,
The bolt is passed through 81 and screwed into the screw holes 293 and 293 to be mounted. At this time, it is preferable to seal along the end portion of the cover 8 with a caulking material, for example, containing silicone. In this example, the lower member 4 uses the first example 4a, and the mounting portion 41 can be easily fixed to the front surface of the foundation 11 in a generally planar wall structure or when the wall is peeled off.

On the other hand, the lower member second of FIGS. 6 (b) and 6 (c)
The example 4b and the third example 4c are used when either the left or right of the wall is unusable because the pipes such as gas and water are arranged in a part of the wall. It is fixed to either upper edge. Also, the same configuration is used in the inside corner. In the lower member fourth example 4d of FIG. 6 (d), the receiving plate 42 used for the projecting corner is fixed to the upper edge of the corner, and the mounting portion 41 on the front surface and the side mounting portion 46 continuous with the mounting portion 41 are provided. It can be easily fixed to the foundation 11. Since the lower member fifth example 4e of FIG. 7A is narrow, the mounting portion 4 having a wide right and left is provided.
1 can be used in places where it cannot be used, and chemical anchors or anchor bolts can be easily inserted and fixed in the fixing holes 44 formed in the vertically long attachment portion 47. The lower member sixth example 4f of FIG. 7 (b) is used in a place in which the vertically long attachment portion 47 cannot be used on the front surface of the foundation 11 in the vertical direction, and is horizontally long at the lower edge of the vertically extending support plate 48. Mounting part 49
Chemical anchors or anchor bolts can be easily inserted and fixed in the fixing holes 44 formed in the. Figure 7 (c)
The lower member seventh example 4g of is used in a place where the vertical front surface and the horizontal anchor bolt of the foundation 11 cannot be used,
An embedded portion 5 having a downward piece instead of the attachment portion 49.
It can be easily fixed to the foundation by embedding 1 with the horizontal foundation.

According to the earthquake-proof reinforcing structure 1 of the present invention, the lower member 4 fixed to the foundation 11, the intermediate member 3 fixed to this, and the upper member 2 fixed to the skeleton pillar 9 are provided. Since the upper cushioning member 6a and the lower cushioning member 6b are interposed between the upper cushioning member 6a and the lower cushioning member 6b, the vertical pulling force generated between the foundation 11 and the building column 9 at the time of occurrence of earthquake motion can be absorbed by the elastic deformation of each cushioning member. Further, since the upper cushioning member 6a has a convex cross-section and the fastener 5 is inserted, the upper cushioning member 6a can absorb seismic motions in the left-right direction and the front-rear direction without being pulled out. U-shaped fastener 5
Is easy to install and can firmly fix each member. Furthermore, the intermediate member 3 and the upper member 2 can be easily adjusted to the left, right, front, and rear with respect to the lower member 4 which is initially positioned by the combination with the oval holes 37, 38, 66. It is possible to deal effectively with construction sites such as wall thickness. Further, there is an advantage that it can effectively counter the rotating vibration of the complicated earthquake motion. The upper member 2 is fixed to the body pillar 9 by fixing the large hole 2d and the small hole 2 of the upper fixing portion 2a.
Since the lug bolts 7a and 7b are passed through e and screwed into the body pillar 9, the upper member 2 can be firmly fixed. The lower member 4 has a mounting portion 41,
There are many types, 46, 47, 49 and the embedding part 51, and it is possible to flexibly deal with the structural arrangement of the foundation part and the wall part of the building.
Further, when the periphery is surrounded by the cover 8, it is possible to easily protect the easily corroded portion, particularly the base 10 and the lower part of the body pillar 9.

[0019]

EFFECTS OF THE INVENTION According to the earthquake-proof reinforcing structure and its construction method of the present invention, it has a simple structure, is easy to work, and can be applied to multi-specific buildings regardless of old and new, has excellent corrosion resistance, and can withstand pulling force. The resistance can be dramatically increased, the tenon can be resisted, and the earthquake motions in the vertical, horizontal, longitudinal and rotational directions can be effectively absorbed.

[Brief description of drawings]

FIG. 1 is a schematic overall view of an example of an earthquake-proof reinforcing structure of the present invention, and is a front view (a) and a side view (b).

FIG. 2 is a partial schematic perspective view of an upper member used for the seismic reinforcement structure of FIG.

FIG. 3 is a schematic perspective view of an intermediate member used in the seismic reinforcement structure of FIG.

4 is a (a) side view (b) a plan view of a fastener used for the seismic reinforcement structure of FIG. 1;

5 is a schematic perspective view of (a) an upper portion, (b) an intermediate portion, and (c) a lower portion of a cushioning member used in the seismic reinforcement structure of FIG. 1.

FIG. 6 is a schematic perspective view or front view of modified examples (a) to (d) of the lower member used in the seismic reinforcing structure of FIG. 1.

FIG. 7 is a schematic perspective view or front view of another modification example (a) to (c) of the lower member used for the seismic reinforcement structure of FIG. 1.

8 is a partial schematic perspective view (a) of the cover used for the seismic reinforcement structure of FIG. 1, (b) a sectional view taken along line XX, FIG.
(C) Y-Y line sectional view, (d) Z direction schematic view from a back surface.

[Explanation of symbols]

1 Seismic reinforcement structure 2 Upper member 2a Upper fixed part 2b Upper connection part 21, 31, 61 Top flat part 22, 32, 62 Upper vertical part 23, 33, 63 Intermediate flat portion 24, 34, 64 Lower vertical part 25, 35, 65 Bottom flat part 26, 27, 43, 50 Reinforcement part 28, 45 round hole 2c bracket 291 Horizontal protruding piece 292 vertical strip 293 screw hole 2d large hole 2e small hole 3 Intermediate member 37, 38, 66 oval holes 4, 4a to 4g Lower member 41, 46, 47, 49 Mounting part 42 Support plate 44, 81 fixing holes 48 Support plate 51 Embedded part 5 fasteners 52 round bar 53 Male screw 6a, 6b cushioning member 7a, 7b lug bolt 8 covers 8a Ship upper part 8b Ship central part 8c Box-shaped lower part 8d, 8e side plate 8f bottom plate 82 Vent 83 Drainer 9 building columns 9a tenon 10 foundation 10a mortise 10b rebar

Claims (8)

(57) [Claims] 1. A seismic reinforcing structure for a foundation, a foundation and a building column, which has a vertical cross-section with an upper fixing portion and a lower end of the upper fixing portion, and has a convex cross-section with an opening on the lower surface. An upper member having an upper connecting portion formed with holes formed in front, rear, left, and right of the intermediate flat portion, and an upper portion formed in a hollow shape having a convex cross-section that can be fitted in the upper connecting portion. An intermediate member having a hole formed therein, a lower member having a plate-shaped mounting portion and a receiving plate projecting in a front direction orthogonal to the mounting portion and having holes formed in front, rear, left and right, and an intermediate flat surface having a convex cross section. An upper cushioning member having holes formed in front, rear, left, and right portions, a pair of lower cushioning members having a substantially rectangular parallelepiped shape, and a U-shaped fastener, and the mounting portion is secured to the foundation, and the upper portion is attached to the body pillar. The fixing portion is fixed, the receiving plate and the intermediate member are fixed by the fixing device, and The upper cushioning member is fixed between the upper portion of the inner surface of the connecting portion and the intermediate member by the fastener, and the lower cushioning member is interposed between the left and right sides of the intermediate member and the upper connecting portion to prevent seismic motion from the upper and lower portions. An earthquake-proof reinforcement structure characterized by being able to be absorbed by elastic deformation of a cushioning member. 2. The lower member has a receiving plate projecting from the upper edge of the vertical support plate in the front direction at right angles and a mounting portion or a downward piece projecting from the lower edge of the support plate in the front direction at right angles. The seismic retrofit structure according to claim 1, wherein the structure has an embedded portion. 3. A plurality of sets are formed by combining one large hole and a plurality of small holes around the large hole with a space between the upper portion and the lower portion of the upper fixed portion, and the large hole and the small hole are formed. The earthquake-proof reinforcement structure according to claim 1 or 2, wherein the upper fixing portion can be fixed to the body pillar by penetrating the large and small lug bolts through the holes. 4. The hole formed on the upper surface of the intermediate member is a long hole whose longitudinal direction is front and back and the hole formed on the lower surface is a long hole whose left and right directions are the longitudinal direction, and the hole formed in the upper cushioning member is the longitudinal direction. The seismic reinforcement structure according to any one of claims 1 to 3, characterized in that it is a long hole having front and rear sides. 5. A bracket projecting from the upper fixing portion to the front surface, and provided with a cover that can be fixed to the bracket and can substantially surround all or part of the upper member, the intermediate member and the lower member from the front surface. The earthquake-proof reinforcement structure according to any one of claims 1 to 4. 6. The seismic reinforcement structure according to claim 5, wherein a vent is provided in a lower portion of the front surface of the cover, and a drainer is provided on the back side of the vent. 7. The lower member is fixed to a foundation with the receiving plate horizontal and aligned with the lateral center position of the body pillar, and the intermediate member is placed on the receiving plate, and the holes of the receiving plate and the flat portion of the lower surface of the intermediate member. The U-shaped fastener is inserted downwardly in the above to temporarily fix it, and the upper member is fitted with the upper fixing portion on the upper connecting portion and the convex hollow upper portion of the intermediate member is fitted on the upper connecting portion. Temporarily set by interposing a lower cushioning member between the left and right of the intermediate member, and then fixing the intermediate member on the receiving plate by aligning the centers of the upper fixing portion and the body pillar, and piercing the upper fixing portion. After marking the plurality of large and small hole positions on the body pillar, the upper member is removed, a hole having a smaller diameter than the lug bolt is drilled at the marking position, and the upper connecting portion is fitted again to the convex hollow upper portion of the intermediate member. Wear it, set it temporarily, and penetrate each large and small lug bolt into the large and small holes. Then, the upper fixing portion is fixed to the body pillar, and the upper cushioning member is inserted from the front side into the gap between the inner surface upper portion of the upper connecting portion and the intermediate member, and the intermediate member upper surface flat portion, the upper cushioning member, and the upper coupling portion. A method for constructing an earthquake-proof reinforcing structure, characterized in that the fastener is inserted upwardly into each hole of the portion to be secured. 8. The longitudinal direction of the intermediate member is such that the holes in the upper flat portion are front and back, the holes in the lower flat portion are left and right, and the holes in the upper cushioning member are front and rear, respectively. Adjusting the left and right position of the member, aligning the center of the upper fixing portion and the body pillar, and finally tightening, the intermediate member is fixed on the receiving plate, and the long hole of the flat portion of the upper surface of the intermediate member and the length of the upper cushioning member. The seismic reinforcement structure according to claim 7, wherein the upper connecting portion, the upper cushioning member, and the intermediate member are fixed by loosening a fastener inserted upward in the hole and adjusting the front-rear position and finally tightening. Construction method.