JP3386770B2 - Reinforcement structure and reinforcement member of slit material for earthquake resistance - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in order to improve the seismic strength of a reinforced concrete building, prevents the seismic slit material embedded near the joint between a wall and a pillar from being deformed during concrete pouring. The present invention relates to a reinforcing structure and a reinforcing member for a seismic slit material.

[0002]

2. Description of the Related Art In recent years, in a reinforced concrete building, as shown in FIG. 9, a seismic resistant slit material 101 is provided near a joint between a wall A and a pillar B for the purpose of improving its seismic resistance. , The compression of the wall A during the earthquake,
The seismic resistant slit material 101 absorbs the stress caused by tension, rubbing, etc., so that it does not propagate to the pillar B, and the shear fracture of the pillar B occurs.
Many have structures that prevent brittle fracture. In order to embed the earthquake-proof slit material 101 in the vicinity of the joint between the wall A and the pillar B, the form frames 104, 1 which are erected to face each other are installed.
Seismic slit material 101 is placed and fixed between 05, then concrete is placed between the formwork 104, 105,
Then, after curing the concrete for a predetermined time, the mold 10
This is done by removing 4,105.

Here, the core material 1 of the earthquake-proof slit material 101
As 02, a foamed synthetic resin molded body is usually used, and therefore the core material 10 is applied due to the pressure when pouring concrete.
2 is easily displaced. Therefore, conventionally, as shown in FIG. 9, both ends of the core member 102 are supported by the support members 103, 103, and the support members 103, 103 are fixed by the fixing members 106, 103.
The core material 102 is prevented from being displaced by being fixed to the mold frames 104 and 105 via 106.

[0004]

However, in the conventional structure, since both ends of the core material 102 are supported by the support materials 103, 103, the core material 102 can be prevented from being displaced, but when the concrete is poured, The middle portion of the core material 102 is easily deformed by the pressure, and when the core material 102 is largely deformed or damaged, the function may not be sufficiently exhibited.

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to effectively prevent the intermediate portion of the core material from being deformed by the pressure when concrete is poured, Moreover, it is an object of the present invention to provide a reinforcing structure and a reinforcing member for a seismic resistant slit material that can be easily arranged and set.

[0006]

In order to achieve the above-mentioned object, the present invention is fixed to a formwork and has an earthquake-resistant slip on the inside.
A core material fitting groove is formed to fit one end of the core material
And a seismic-resistant sleeve with a reinforcing member fitting groove formed on the side surface.
Placed on the supporting material of the matting material and the supporting rod spanned between the molds
Retaining that is rotatably supported by being screwed into the locked member
It is fixed to the rod and the tip of this holding rod, from the center to the outer periphery.
Perimeter type in which the distance at is gradually increased from the minor axis to the major axis
For earthquake resistance from a reinforcing plate that has a shape
Reinforcing structure of slit material is constructed, and the holding rod is angled
By rotating, the peripheral portion of the reinforcing plate is moved to the supporting member.
Of the reinforcing member to reinforce the core material.
It is characterized by having done so.

Further, according to the present invention, a support bridged between the molds is provided.
It is rotatably supported by being screwed into the locking member arranged on the rod.
And the holding rod that is secured to the tip of this holding rod.
The distance from the outer circumference to the outer circumference gradually increases from the shorter diameter to the longer diameter.
And a reinforcing plate having an outer peripheral shape that forms a reinforcing member of an earthquake-proof slit material.

Here, it is preferable that the reinforcing plate has a substantially elliptical outer peripheral shape.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a reinforcing structure and a reinforcing member for an earthquake-proof slit material of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the reinforcing structure of the earthquake-proof slit material includes a supporting member and a reinforcing member for the earthquake-proof slit material.

As shown in FIGS. 1 and 2, the earthquake-proof slit material 1 is obtained by fitting support materials 3 and 4 to both ends of a plate-shaped core material 2.

The core material 2 is a foamed synthetic resin molded body, and is, for example, a foamed polyethylene, foamed polystyrene or the like molded into a plate shape.

The support material 3 is a synthetic resin molded body, and is made of, for example, hard vinyl chloride, polypropylene or the like molded into a predetermined shape. The support member 3 has a core member fitting groove portion 5 having a substantially U-shaped cross section formed on the inner side and a fixing member fitting groove portion 6 having a substantially trapezoidal cross section formed on the outer side portion. A projecting portion 8 and a branch portion 9 are formed on both side surface portions 7, and a reinforcing member fitting groove portion 10 is defined by the side surface portion 7, the projecting portion 8 and the branch portion 9.

The support member 4 is also a synthetic resin molded body, for example, hard vinyl chloride, polypropylene or the like molded into a predetermined shape. The support member 4 also has a core member fitting groove portion 11 having a substantially U-shaped cross section formed on the inner side, a fixing member fitting groove portion 12 having a substantially trapezoidal cross section formed on the outer side, and the protrusions 14 and The branch portion 15 is formed, and the side surface portion 13, the projecting portion 14, and the branch portion 15 form the reinforcing member fitting groove portion 16. The support member 4 is disposed inside the wall portion, and has a refractory material insertion portion 17 formed in an intermediate portion. A refractory material 18 made of ceramics or the like is inserted into the refractory material insertion portion 17. There is.

As shown in FIG. 3, in the reinforcing member 21, the retaining rod 23 is inserted into and screwed into the locking member 22, and the reinforcing plate 24 is fixed to the tip of the retaining rod 23.

The locking member 22 is formed by bending a plate material made of iron, stainless steel or the like into a substantially U-shaped cross section, and has screw holes 25a, 25a formed in the side surface portions 25, 25,
The screw portion 23a of the holding rod 23 is inserted into the screw holes 25a, 25a.
Are screwed together. Further, the holding piece 26 is formed by cutting and raising the lower part of the one side surface portion 25 inward, and the holding rod 23, the side surface portions 25, 25, and the holding piece 26 support the rod insertion space 2
7 is defined.

The holding rod 23 is a bar made of iron, stainless steel or the like, has a threaded portion 23a formed over substantially the entire length thereof, and has a fixed hole 2 having a distal end portion formed substantially in the center of the reinforcing plate 24.
It is fitted and fixed to 4a.

The reinforcing plate 24 is formed by molding a plate material made of iron, stainless steel or the like, and has a different distance from the center to the outer periphery, and in particular, has an outer peripheral shape having a minor axis L and a major axis M in the orthogonal direction. . The reinforcing plate 24 shown in FIG. 3 has a substantially oval outer peripheral shape, and a peripheral portion 24c is raised with respect to a central portion 24b.

Instead of the reinforcing plate 24 shown in FIG. 3, a reinforcing plate 29 shown in FIG. 5 may be used. Reinforcement plate 29 shown in FIG.
Is a substantially elliptical outer peripheral shape having a linear portion and an arcuate portion, a fixing hole 29a is formed in the substantially central portion, and a thick wall abuts on the arcuate peripheral portion having the major axis M. The portion 29a is formed. Further, reinforcing ribs 29c are provided at appropriate portions.

In order to embed the earthquake-proof slit material 1 in the vicinity of the joint between the wall and the pillar, first, as shown in FIG. 6 (A), a joint member 32, which is a fixing member, is attached to a standing mold 31. Nail 33
The fixing member fitting groove portion 6 of the support member 3 is fitted to the joint member 32. Then, one end portion of the core material 2 is fitted into the core material fitting groove portion 5 of the support material 3, and the core material fitting groove portion 11 of the support material 4 is fitted into the other end portion.

Next, as shown in FIG. 6 (B), a joint member 35, which is a fixing member, is fixed to the standing frame 34 by a nail 33 or the like, and the fixing member of the supporting member 4 is fitted to the joint member 35. Form frames 31 and 3 in which the mating groove portions 12 are fitted and are erected to face each other.
Seismic slit material 1 is placed between the four.

Next, as shown in FIG. 6C, the support rod 36 is inserted into the support rod insertion space 27 of the reinforcing member 21, and
The screw portions 36a, 36a formed at both ends of the support rod 36 are screwed into the screw holes 37a, 37a formed in the support bodies 37, 37, and further, the screw portion 3 formed in the support bodies 37, 37.
7b, 37b through the molds 31, 34, and the cap 3
The support rod 36 is bridged and fixed between the mold frames 31 and 34 by screwing and tightening in the screw holes 38a and 38a formed in 8 and 38. Then, the holding rod 23 is appropriately rotated to move the distance reinforcing plate 24 as appropriate, and the reinforcing plate 24 is brought into contact with or close to the side surface of the core material 2.

Next, as shown in FIG. 6D, the holding rod 2
By rotating 3 at a predetermined angle, the peripheral portion 24c of the reinforcing plate 24 is fitted into the reinforcing member fitting groove portions 10 and 16 of the support members 3 and 4, and the core member 2 is reinforced by the reinforcing member 21 from the side surface.

Then, concrete is cast between the molds 31 and 34, and after curing for a predetermined time, the molds 31 and 34, the joint members 32 and 35, and the caps 38 and 38 are removed, and the earthquake-resistant slit material 1 is obtained. It can be buried near the joint between the wall and the pillar.

As described above, according to the present invention, since the core member 2 is reinforced from the side surface by the reinforcing member 21 at the time of placing concrete, the intermediate portion of the core member 2 is not easily deformed by the pressure thereof.

Further, the reinforcing member 21 of the present invention can be easily arranged only by inserting the supporting rod 36 into the supporting rod insertion space 27, and moreover, the holding rod 23 is rotated by a predetermined angle to reinforce the reinforcing plate 2.
4 around the peripheral portion 24c of the reinforcing member fitting groove portion 1 of the support member 3,4
It can be set easily just by fitting it to 0 and 16, and it has excellent workability.

Further, since the reinforcing member 21 of the present invention has different distances from the center to the outer periphery, the length of the core member 2 and the depth of the reinforcing member fitting groove portions 10, 16 of the supporting members 3, 4 are different. Even with respect to the earthquake-proof slits 1 having different numbers, it is possible to sufficiently cope with the situation by setting the reinforcing plate 24 at an appropriate angular position.

As described above, the support members 3 are provided on both ends of the plate-shaped core member 2.
Although the seismic resistant slit material 1 in which 4 is fitted has been described, the present invention is a seismic resistant slit material in which the supporting material 53 is fixed to the side surface of the plate-shaped core material 52 as shown in FIGS. 7 and 8. It can also be applied to 51.

In the earthquake-proof slit material 51, the core material 52
The refractory material 55 is interposed between the foamed synthetic resin moldings 54, 54. The expanded synthetic resin molded body 54 is made of expanded polyethylene, expanded polystyrene, or the like, and the refractory material 55 is
Rock wool or the like is formed into a plate shape.

The support material 53 is a synthetic resin molded body, and is made by molding, for example, hard vinyl chloride, polypropylene, or the like into a predetermined shape. The support member 53 has a protrusion 57 and a branch 58 formed on both sides of one side of the flat portion 56, and the flat portion 56, the protrusion 57, and the branch 58 define a reinforcing member fitting groove 59.

In order to embed the earthquake-proof slit material 51 in the vicinity of the joint between the wall and the pillar, first, as shown in FIG. 7, a joint member 32 which is a fixing member is attached to a standing frame 31 and a nail 33 or the like. The core member 52 is brought into contact with the joint member 32 with one end face thereof, and the other end face thereof is brought into contact with the standing mold form 34, and the seismic resistance is provided between the facing mold frames 31, 34. Slit material 5
Place 1

In the same manner as described above, the support rod 36 is attached to the form 3
After bridging between 1 and 34 and fixing, the holding rod 23 is appropriately rotated, the distance reinforcing plate 24 is moved appropriately, and the reinforcing plate 24 is brought into contact with or close to the side surface of the flat portion 56 of the support member 53. Then, by rotating the holding rod 23 by a predetermined angle, the peripheral portion 24c of the reinforcing plate 24 is fitted into the reinforcing member fitting groove portions 59, 59 of the support member 53, and the reinforcing member 21 reinforces the core member 52 from the side surface. .

Then, concrete is cast between the molds 31 and 34, and after curing for a predetermined time, the molds 31 and 34, the joint members 32 and 35, and the caps 38 and 38 are removed. It can be buried near the joint between the wall and the pillar.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a reinforcing structure of an earthquake-resistant slit material of the present invention.

FIG. 2 is a cross-sectional view of the seismic resistant slit material shown in FIG. 1 in a separated state.

3 (A) is a plan view, FIG. 3 (B) is a side view, and FIG. 3 (C) is a front view of an embodiment of a reinforcing member for an earthquake-proof slit material of the present invention.

5 (A) is a plan view and FIG. 5 (B) is a side view of another embodiment of the reinforcing plate of the reinforcing member of the slit member for earthquake resistance of the present invention.

FIG. 6 is an explanatory view showing a method of embedding a seismic resistant slit material to which the reinforcing structure of the seismic resistant slit material of the present invention is applied.

FIG. 7 is a cross-sectional view showing the reinforcing structure of the earthquake-proof slit material of the present invention.

8 is a cross-sectional view of the seismic resistant slit member shown in FIG. 7 in a separated state.

FIG. 9 is a cross-sectional view showing a conventional reinforcing structure for earthquake-proof slit material.

[Explanation of symbols]

1 Seismic slit material 2 core material 3,4 Support material 7,13 Side part 10, 16 Reinforcing member fitting groove 21 Reinforcement member 22 Locking member 23 Holding rod 24 Reinforcing plate

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04G 9/10 104 E04G 15/06 E04H 9/02 321 E04B 2/84

Claims (3)

(57) [Claims] 1. A seismic-resistant slip is fixed to the formwork and is attached to the inner side.
A core material fitting groove is formed to fit one end of the core material
The supporting member of the earthquake-proof slit material having the reinforcing member fitting groove formed on the side surface and the locking member arranged on the supporting rod bridged between the molds are screwed together.
The holding rod that is combined and rotatably supported, and the holding rod
It is fixed to the tip part and the distance from the center to the outer circumference is from the short diameter
Reinforcement plate having an outer peripheral shape that gradually increases toward the major axis
And a reinforcing member formed by rotating the holding rod by a predetermined angle.
Fit the peripheral part of the support member into the reinforcing member fitting groove,
A reinforcing structure for an earthquake-resistant slit material, characterized in that the core material is reinforced . 2. A support rod arranged between the molds.
Holding rod that is screwed to the locking member and is rotatably supported
And is fixed to the tip of this holding rod, from the center to the outer periphery
Peripheral shape in which the distance of gradually increases from the minor axis to the major axis
A reinforcing member having a seismic resistant slit material , which comprises: 3. The reinforcing member for an earthquake-proof slit material according to claim 2, wherein the reinforcing plate has a substantially oval outer peripheral shape.