JPH10266435A - Fitting method and jig for pc curtain wall to building skeleton section - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit a PC curtain wall by allowing a bolt screwed into an L-shaped steel connecting tool, pressed with its tip section to the vertical load reception section of a building skeleton, and bearing a vertical load to bear in-plane and out-of-plane horizontal loads. SOLUTION: The upper section of a PC curtain wall 1 is fixed to a building skeleton section 5, and an L-shaped connecting tool 2 is fitted to the lower section. A bolt 4 concurrently serving as a pin is screwed into a reinforcing steel product 3 welded to the connecting tool 2. The bolt 4 is inserted into a loose hole bored on the upper horizontal plane 6a of a vertical load reception section 6 fixed to the building skeleton section 5, and the tip is pressed to the lower horizontal plate 6b of the vertical load reception section 6 to bear the vertical load of the PC curtain wall 1. A washer steel sheet 9 bored with a pin hole and preventing the horizontal movement of the bolt 4 is arranged at the upper section of the vertical load reception section 6. The vertical load and in-plane and out-of-plane horizontal loads of the PC curtain wall 1 can be borne by one bolt 4, the steel work cost is reduced, and the execution property can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a jig for attaching a PC curtain wall to a building frame.

[0002]

2. Description of the Related Art In order to attach a PC curtain wall to a building frame, not only a vertical load of a heavy PC curtain wall is fixedly locked with bolts or the like, but also horizontal and in-plane horizontal stresses due to seismic force, wind pressure and the like. Various methods have been proposed in consideration of factors such as anchoring of a floor and absorption of interlayer displacement during an earthquake.

FIGS. 4 to 7 show typical conventional examples.
And inserted through the bolt e tightening supporting the C curtain pin d and vertical forces for engaging the surface-out direction of the stress in the horizontal section piece c ₁ wall a to fix through the fixing hardware b the L-shaped fitting c Each is pressed against the building frame f side. In the figure, g is a reinforcing bar. 8 to 10 show another conventional example, which is fixed to a building frame f side in a through hole c ₁ ′ formed in a horizontal piece c ₁ of an L-shaped bracket c fixed to a PC curtain wall a. The pin i planted from the vertical load receiving portion h is fitted, and between the receiving portion h and the horizontal piece c ₁ around the pin i as shown in FIG.
And a liner plate j as shown in FIG.
In the figure, k is a washer.

[0004]

However, in the former of the above prior arts, the horizontal stress locking pin in the in-plane and outside directions and the tightening bolt for supporting the vertical force are provided in parallel, so that the fastener has a width of And the mounting position with respect to the frame is easily restricted. In the latter case, there is a problem that level adjustment at the time of construction is difficult.

The present invention has been proposed in view of the above-mentioned problems of the prior art. It is an object of the present invention to reduce the width of a fastener, adjust a level, and easily connect a PC curtain to a building frame. An object of the present invention is to provide a method of attaching a wall to a building frame and a jig.

[0006]

In order to achieve the above object, according to the method for mounting a PC curtain wall to a building frame according to the present invention, one of the upper and lower sides of the PC curtain wall is fixed to the building frame. On the other side, an L-shaped steel fitting is attached, a bolt is screwed into the PC fitting in a direction parallel to the PC curtain wall, and the tip of the bolt is pressed into contact with a vertical load receiving portion provided on the building frame to make the connection. The vertical load of the PC curtain wall is supported, and horizontal stress in two directions, in-plane and out-of-plane, is supported via the one bolt.

The jig for mounting a PC curtain wall to a building frame according to the present invention is a vertical piece fixed to the PC curtain wall and orthogonal to the vertical piece, and a thick reinforcing steel material is provided on the back surface. An L-shaped steel member composed of a horizontal piece that is layered and has a screw hole penetrated through the reinforcing steel material, and the reinforcement is provided over each of the screw holes provided in the horizontal piece and the reinforcing steel material, respectively. Vertical load bearing steel consisting of upper and lower two-stage horizontal pieces attached to the PC frame wall fixing position of the building frame, and dual-purpose bolts screwed so as to protrude below the steel, and the same vertical load bearing steel A horizontal washer interposed between the horizontal portion of the L-shaped steel member and a washer steel plate for inhibiting horizontal movement of the pin / bolt; the upper horizontal portion of the washer steel plate and the vertical load bearing steel material includes the pin Double-purpose bolt is loose And it is configured to provide a loose hole that.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings showing preferred embodiments of the present invention. 1 and 2
In the figure, reference numeral 1 denotes a PC curtain wall, the upper part of which is fixed to the building frame in the example shown, and the other side (the lower part in the example shown).
A bolt that also serves as a pin in the vertical direction that is parallel to the PC curtain wall 1 across the L-shaped steel connector 2 and the reinforcing steel 3 attached by welding to the connector 2 and the back surface of the connector 2 4, and a penetrating portion of the bolt 4 extending beyond the reinforcing steel material 3 is drilled in the upper horizontal plate 6 a of the vertical load receiving portion 6 composed of upper and lower horizontal pieces fixed to the building body 5. The vertical load of the PC curtain wall 1 is supported by the lower end of the vertical load receiving portion 6 being pressed into contact with the lower horizontal plate 6b of the vertical load receiving portion 6. The horizontal stress in the direction is fixed.

Further, a washer steel plate 9 having a pin hole 8 through which a bolt also serving as the pin penetrates is disposed above the vertical load receiving portion 6 so as to prevent the bolt 4 from moving horizontally. Has become. Numeral 10 is an adjusting bolt which is mounted in the through hole 7 'of the vertical load receiving portion 6, adjusts the position of the building when it is built, and fixes it. The bolt 4 and the reinforcing steel 3 are used to improve the degree of fixing of the bolt by simultaneous tapping.

The washer steel plate 9 and the portal steel 6 'of the vertical load receiving portion 6 are welded to strongly resist in-plane and out-of-plane stress. FIG. 3 shows another embodiment of the present invention, in which the fastener is a cast product. In the figure, the same reference numerals are given to the same parts as those in the above embodiment.

[0011]

According to the present invention, as described above, one of the upper and lower sides of the PC curtain wall is fixed to the building frame,
On the other side, an L-shaped steel connecting device is attached, a bolt is screwed into the connecting device in a direction parallel to the PC curtain wall, and the tip of the bolt is pressed into contact with a vertical load receiving portion provided on the building body to vertically By applying load, in-plane and out-of-plane horizontal load to one bolt, the fastener with frame is smaller than the load receiving part and the conventional method of applying in-plane and out-of-plane horizontal load to each bolt. , Steel construction costs are reduced,
The arrangement plan of the steel joint and the PC curtain wall is facilitated, and the workability is significantly improved.

According to the jig for mounting a PC curtain wall to a building frame of the present invention, a vertical piece fixed to the PC curtain wall and a thick reinforcing steel material are laminated on the back surface, and the same reinforcement is provided. One bolt which is provided with a screw hole in each of the steel materials, and is screwed so as to project downwardly below the reinforcing steel material over each of the screw holes, and to simultaneously bear in-plane and out-of-plane horizontal loads. And a vertical load bearing steel member consisting of a horizontal section in two stages, which is attached to a PC curtain wall fixing position of a building frame, and the pin interposed between the steel section and the horizontal section of the L-shaped steel member It is composed of a washer steel plate for inhibiting the horizontal movement of the dual-purpose bolt, and the upper horizontal member of the same washer steel plate and the vertical load bearing steel is provided with the loose hole for the free use of the dual-purpose bolt, so that the PC curtain wall is constructed. Mounting method described above with respect to the body portion are those capable of performing efficiently.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a structure for attaching a PC curtain wall to a building frame by a method of the present invention.

FIG. 2 is an exploded view of the PC curtain wall mounting member shown in FIG.

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

FIG. 4 is a plan view showing a conventional example of a method of attaching a PC curtain wall to a building frame.

FIG. 5 is an elevation view of FIG. 4;

FIG. 6 is a diagram viewed from the arrow in FIG. 4;

FIG. 7 is a roll view of FIG. 4;

FIG. 8 is a longitudinal sectional view showing another conventional example.

FIG. 9 is a side view of FIG.

FIG. 10 is a plan view of the liner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PC curtain wall 2 L-shaped steel connection tool 3 Reinforcement steel material 4 Bolt 5 Building frame 6 Vertical load receiving part 6a Upper horizontal plate 6b Lower horizontal plate 7 Loose hole 7 'Through hole 8 Pin hole 9 Washer steel plate 10 Adjustment bolt

Continued on the front page (72) Inventor Shinichi Yamada 4-6-115 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Corporation (72) Inventor Hiroshi Midorikawa 4-6-115 Sendagaya, Shibuya-ku, Tokyo Fujita Corporation (72) Inventor Noriaki Tagashi 4-6-15 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Co., Ltd. (72) Inventor Masahiro 4-6-1 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd.

Claims (2)

[Claims] 1. An upper or lower part of a PC curtain wall is fixed to a building frame, and an L-shaped steel fitting is attached to the other.
A bolt is screwed into the connecting tool in a direction parallel to the PC curtain wall, and a tip of the bolt is pressed against a vertical load receiving portion provided on a building frame to support the vertical load of the PC curtain wall. A method of mounting a PC curtain wall to a building frame, wherein horizontal stress in two directions, in-plane and out-of-plane, is supported via the one bolt. 2. A vertical piece fixed to the PC curtain wall and a thick reinforcing steel material orthogonal to the vertical piece and on the back surface, and a screw hole is penetrated through the reinforcing steel material. Over the L-shaped steel member consisting of the horizontal piece and the screw holes provided in the horizontal piece and the reinforcing steel material, respectively.
A dual-purpose bolt screwed so as to protrude below the reinforcing steel material, a vertical load bearing steel material consisting of two upper and lower horizontal pieces attached to the PC frame wall fixing position of the building frame, and the vertical load bearing It consists of a washer steel plate for preventing horizontal movement of the pin / bolt interposed between the steel material and the horizontal piece of the L-shaped steel member, and the upper horizontal piece of the washer steel sheet and the vertical load bearing steel material includes: A loose hole through which the pin and bolt are freely inserted is provided.
A jig for attaching the C curtain wall to the building frame.