JP2004225400A - Socket of joint member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a socket which can be attached without being easily disconnected from an end of a buffer board, in terms of a joint member which is formed of the buffer board and the socket to be detachably attached to at least one end of the buffer board, and which is arranged between concrete structures. <P>SOLUTION: The joint member 1, which is formed of the buffer board 2 and the socket 5 to be detachably attached to both the ends of 2a and 2b of the buffer board 2, is installed between the concrete structures of a wall A and a column B, which constitute a building. The socket 5 is equipped with a first U-shaped cross-section groove part 8 into which the ends 2a and 2b of the buffer board 2 are to be fitted, and anti-disconnection parts 9 capable of being locked to both the side surfaces of the buffer board 2 are formed on the inner surfaces of both mutually opposed side walls 8b of the groove part 8. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a socket for a joint member, and more particularly, for example, when installed between concrete structures such as concrete walls and columns in a reinforced concrete structure, when an external force such as an earthquake acts on the concrete, The present invention relates to a joint member socket suitable for preventing destruction or damage of a structure.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a joint member used in a building or the like, a joint member generally arranged at a space between joints (joint grooves) of an exterior material installed on a wall surface of a skeleton (see, for example, Patent Document 1). ).
[0003]
[Patent Document 1]
JP-A-2000-110263 (FIGS. 1 and 2)
[0004]
[Problems to be solved by the invention]
In buildings such as reinforced concrete (RC) and steel-framed reinforced concrete (SRC), concrete walls and concrete columns (hereinafter referred to as concrete structures) crack when subjected to relatively large shaking due to an earthquake or the like. And may be destroyed. Therefore, in recent years, there has been an increasing number of buildings provided with a device for preventing damage to a concrete structure when receiving a relatively large external force due to an earthquake or the like.
[0005]
The main such device is a so-called seismic isolation device that prevents the building itself from shaking. However, the seismic isolation device is, for example, one that is installed between a foundation and a building body that is installed thereon, or one that is installed between each floor, There was a problem that the installation was very large, and the construction cost was high. Therefore, for example, installing a buffer plate between concrete structures such as concrete walls and columns in a reinforced concrete structure to prevent the destruction or damage of the concrete structure when an external force such as an earthquake acts. Is considered.
[0006]
An object of the present invention is to provide a joint member formed of a cushion plate and a socket detachably attached to at least one end thereof and disposed between concrete structures without easily coming off from the end of the cushion plate. It is to provide a possible socket.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, an object of the present invention is a concrete structure of a wall or a pillar, which is formed of a shock absorbing plate and a socket detachably attached to at least one end of the shock absorbing plate, and constitutes a building. It is the said socket of the joint member installed between bodies.
[0008]
In the socket of the joint member, the present invention is characterized in that the socket is formed in a first groove into which an end of the buffer plate is fitted, and on inner surfaces of both side walls of the first groove facing each other. And a retaining portion that can be locked on both side surfaces of the buffer plate.
[0009]
As one preferred embodiment of the socket of the joint member according to the present invention, the retaining portion is inclined obliquely from an inner surface of a side wall of the first groove to an inner surface of a bottom wall of the socket, where an end surface of the buffer plate faces. And at least one claw extending continuously or intermittently in the longitudinal direction of the first groove.
[0010]
As another preferred embodiment of the socket of the joint member according to the present invention, the socket is formed on a side opposite to the first groove with the bottom wall interposed therebetween, in a direction opposite to the first groove. A second groove for filling the sealing material.
[0011]
Further, as another preferable embodiment of the socket of the joint member according to the present invention, a tubular portion for filling a heat insulating material is provided between the first groove portion and the second groove portion.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
The socket of the joint member according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing the joint member 1 installed on a building. The joint member 1 is mainly installed between a concrete wall (concrete structure) A and a concrete column (concrete structure) B. Specifically, the concrete wall A constituting the skeleton of the RC or SRC building is formed with a lateral end indicated by an arrow T in FIG. The space is defined as a joint groove C. The joint member 1 is disposed in the joint groove C so as to be sandwiched between the wall A and the column B.
[0013]
As described above, the joint member 1 disposed at the space (joint groove C) between the concrete wall A and the pillar B constituting the building body includes a buffer plate 2, an indoor side 3, and an outdoor side 4. And rigid sockets 5 attached to both end portions 2a and 2b of the buffer plate 2 facing the same. In this example, the socket 5 is mounted on both ends 2a, 2b of the buffer plate 2, but is mounted only on the end 2b facing the outdoor side 4 of the buffer plate 2, and is mounted on the indoor side 3. Another socket or the like may be attached to the facing end. The buffer plate 2 is formed by attaching a fire-resistant film or sheet such as an aluminum sheet 7 to both sides of a plate-shaped body 6 formed of a resin foam material such as polystyrene foam, and the socket 5 is formed of a hard plastic. Have been.
[0014]
As shown in FIG. 2, the socket 5 is a long material having a length substantially equal to the height between the upper end and the lower end of the buffer plate 2, and the both ends 2 a and 2 b of the buffer plate 2 A first groove portion 8 having a U-shaped cross section to be fitted is provided. The first groove portion 8 is defined by a bottom wall 8a to which the end surfaces of the ends 2a and 2b of the buffer plate 2 are in close contact, and opposed side walls 8b standing substantially perpendicular to the bottom wall 8a. I have. On the inner surface of each opposing side wall 8b, a retaining portion 9 that can be locked to both surfaces of the buffer plate 2 fitted into the first groove 8 is formed.
[0015]
In this embodiment, the retaining portion 9 is formed on the inner surface of each side wall 8b by two claws 9a and 9b which continuously extend in the length direction as shown in FIG. 1 protrudes obliquely toward the bottom wall 8a in the groove portion 8, and their tip portions break through the aluminum sheet 7 which is a fire-resistant film or sheet attached to the surface of the buffer plate 2 as shown in FIG. It is formed in a sharp tapered shape so that it can bite into the plate-shaped body 6 made of a resin foam material. Such a retaining portion 9 is made of a resilient material such as rubber or soft vinyl chloride resin in addition to the sharply tapered claws 9a and 9b. It is also possible to form it with a locking part having a role of a stopper so that it does not occur.
[0016]
The socket 5 has two third grooves 10 defined on both outer sides of the first groove 8. Each of the third groove portions 10 extends from the bottom wall 8a defining the first groove portion 8 to each of the side walls 8b, and another side wall 10b disposed substantially parallel to the side wall 8b on each outer side of the both side walls 8b. And a protruding portion 10a protruding outward. More specifically, the end of the protruding portion 10a projecting outward from the bottom wall 8a beyond each side wall 8b is connected to the outer side wall 10b, and the third groove 10 is The side wall 8b is shared, and is formed by a protruding portion 10a from the bottom wall 8a and each outer side wall 10b connected thereto.
[0017]
On the opposite side of the bottom wall 8 a defining the first groove 8, there is provided a heat-insulating-material filling cylindrical portion 12 in which a heat-insulating material 11 such as a ceramic fiber is packed. The cylindrical portion 12 is formed in a rectangular shape in cross section by two side walls 12a and 12b that stand substantially perpendicularly from the bottom wall 8a and an end wall 12c that connects the side walls 12a and 12b. Two wings 13 spaced from each other are provided on the outer surface of the end wall 12c. The two wings 13 and the end wall 12c form a second groove 14 which is open in a direction opposite to the first groove 8 on a side opposite to the first groove 8 across the bottom wall 8a. . The interval between the tip portions 13a of the wings 13 is slightly wider than the interval between the base portions 13b connected to the end wall 12c, and thus the end face shape of the second groove 14 is substantially trapezoidal. The second groove portion 14 is filled with a sealing material as is apparent from FIG. Specifically, the backup material 15 is filled inside the second groove 14, and the caulking material 16 is filled thereon. The backup material 15 and the caulking material 16 are mainly filled in the second groove 14 facing the outdoor side 4, but it is also preferable to fill the second groove 14 facing the indoor side 3.
[0018]
Next, a method of installing the joint member 1 when constructing a concrete building portion will be described. When forming the concrete wall A and the pillar B, a formwork (not shown) for that purpose is installed. At that time, the joint member 1 is installed between a position that becomes the lateral end of the wall A and a position that becomes the surface of the column B facing the lateral end of the wall A. The joint member 1 has both ends 2a, 2b of a buffer plate 2 formed by attaching aluminum sheets 7 to both surfaces of a plate-shaped body 6 made of polystyrene foam having a width dimension shorter than the thickness dimension of the wall A to be formed. The socket 5 is press-fitted into each first groove 8 and assembled. When each end 2a, 2b of the buffer plate 2 is pressed into each first groove 8 of the socket 5, the tips of the claws 9a, 9b formed on the inner surface of each side wall 8b bite into the surface of the buffer plate 2. , Prevents the socket 5 from coming off the ends 2a, 2b of the buffer plate 2.
[0019]
As shown in FIG. 1, the joint member 1 is supported at the above-described predetermined position by a holding bracket 18 supported by a separator 17 installed in a mold forming a wall A. That is, as shown in FIG. 2, the holding metal fitting 18 is configured such that one end of a screw rod 18b is rotatably attached to a longitudinally intermediate portion of an elongated plate-shaped support bar 18a, and the other end of the screw rod 18b is provided. The portion is screwed into a screw hole of a U-shaped support bracket 18c.
[0020]
When the joint member 1 is supported at a predetermined position by the holding metal member 18, first, the supporting bracket 18c of the holding metal member 18 is fitted and connected to the rod-shaped member of the separator 17, and then the arrow 20 is formed around the screw rod 18b. The support bar 18a is rotated in the direction, and both end portions are fitted into the third groove portions 10 of the sockets 5 formed on both outer sides of the joint member 1. After that, the screw rod 18b is rotated to finely adjust the feeding length of the screw rod 18b from the support bracket 18c, and the joint member 1 is accurately positioned. In FIG. 1, reference numeral 19 denotes a reinforcing bar arranged in the wall A.
[0021]
Next, concrete is poured into the formwork. It is preferable to appropriately remove the holding bracket 18 in the process of placing concrete into the formwork, but it may be embedded in the concrete as it is. The third groove 10 of the socket 5 into which both ends of the support bar 18a of the holding fitting 18 are fitted also has an effect of integrating with concrete by entering concrete poured into the formwork. When the joint member 1 is installed at a predetermined position, the joint member 1 does not necessarily have to be supported by the holding metal fittings 18 but can be supported by other simple supporting means. When concrete is cast after the joint member 1 is installed at a predetermined position in the formwork, lateral pressure due to the cast concrete is applied to the buffer plate 2 of the joint member 1. Therefore, for example, when the joint member 1 is installed by supporting the socket 5 by simple means, or when the joint member 1 is self-installed without using any special means, the buffer plate 2 is driven by the lateral pressure of the poured concrete. The ends 2a and 2b may be pushed from one side and deformed, and the ends 2a and 2b may try to come out of the first groove 8 of the socket 5. However, in the socket 5, claws 9a and 9b projecting obliquely toward the inner surface of the bottom wall 8a are formed as retaining portions 9 on the inner surface of both side walls 8b that define the first groove portion 8. However, since the tip end portion is engaged with and engaged with the surface of the buffer plate 2, it does not easily come off. The lateral pressure applied to the buffer plate 2 by the concrete cast into the formwork to form the wall A is offset by the side pressure received from the other side by the concrete cast into the formwork forming the column B. .
[0022]
When the joint member 1 is installed between concrete structures in a building, even when the building is subjected to relatively large shaking due to an earthquake or the like, the stress acting on the concrete structure, that is, the concrete walls and columns is reduced. The shock absorbing plate 2 of the joint member 1 absorbs and can prevent the concrete structure from being cracked or broken.
[0023]
In the socket 5 of the joint member 1 described above, the retaining portions 9 of the ends 2a and 2b of the buffer plate 2 are provided on the inner surfaces of both side walls 8b defining the first groove 8 as shown in FIG. The claws 9a and 9b project obliquely toward the inner surface of the bottom wall 8a and extend continuously in the length direction of the first groove portion 8. It is not limited to the claws 9a and 9b that extend intermittently, but may be claws 21a and 21b that intermittently extend as shown in FIG.
[0024]
【The invention's effect】
According to the socket of the joint member according to the present invention, for example, when the socket is supported by a simple means and the joint member is installed at a predetermined position in the formwork, the cushion plate receives the lateral pressure of the cast concrete and receives the deformation force. Does not easily come off from the first groove of the socket, the joint member can be easily installed.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a joint member installed between a concrete wall and a pillar.
FIG. 2 is a partially enlarged perspective view showing a joint member.
FIG. 3 is a perspective view showing a partially enlarged socket of a joint member;
FIG. 4 is a partially enlarged perspective view showing a socket of another embodiment in a joint member.
[Explanation of symbols]
A wall (concrete structure)
B pillar (concrete structure)
C joint groove 1 joint member 2 buffer plate 2a, 2b end portion 3 of buffer plate indoor side 4 outdoor side 5 socket 6 plate-like body 7 made of resin foam material aluminum sheet 8 first groove 8a bottom wall 8b side wall 9 retaining part 9a, 9b Claw 10 Third groove 10a Projection 10b Side wall 11 Insulation material 12 Insulation material filling cylindrical portion 12a, 12b Side wall 12c End wall 13 Wing 13a Tip 13b Base 14 Second groove 15 Backup material 16 Caulking material 21a, 21b nail

Claims (4)

In the socket of the joint member is formed from a buffer plate and a socket detachably attached to at least one end of the buffer plate, and is installed between concrete structures of walls and columns constituting a building,
The socket has a first groove portion into which an end of the buffer plate is fitted, and a retaining portion formed on inner surfaces of both side walls of the first groove portion facing each other and capable of being locked to both side surfaces of the buffer plate. The said socket characterized by the above-mentioned. The retaining portion is inclined obliquely from an inner surface of a side wall of the first groove toward an inner surface of a bottom wall of the socket where an end surface of the buffer plate faces, and continuously or intermittently in a length direction of the first groove. 2. The socket according to claim 1, wherein the socket is at least one claw that extends. The said socket is provided with the 2nd groove part for sealing material filling formed in the opposite direction to the said 1st groove part in the opposite side to the said 1st groove part across the said bottom wall. The socket of any preceding claim. The socket according to any one of claims 1 to 3, wherein a heat-insulating-material-filling tubular portion is provided between the first groove portion and the second groove portion.

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