JPS6134548B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for erecting PC (precast concrete) wall boards in construction work.

Conventionally, in order to erect earthquake-resistant wall boards of PC structure between steel frames, such as slit wall boards with appropriate slits inside (see Japanese Patent Publication No. 11135/1983), the following steps were required: steel frame construction → correction of construction measurements → decking. The process is as follows: temporary laying of plates → final tightening of high-strength bolts → welding of column joints → installation of PC wall plates. It will be built in Therefore, positioning the PC wall panels is difficult and requires time and effort.

In addition, when installing such PC wall panels, the steel frame erection precedes the steel frame by nearly three sections, so a rough opening for unloading is required.Furthermore, the work must be done on a floor approximately 40 meters below the top floor of the steel frame structure, which is a safety issue. There was a problem.

The purpose of the present invention is to solve the above-mentioned disadvantages of the conventional example,
Since it can be erected integrally with the beam steel frame, construction work can be carried out easily, quickly and safely.In addition, sufficient space can be secured for related work around the columns, such as welding the columns, and the wall panels being installed are protected from wind. To provide a method for installing wall boards in a building that is easy to use, and also provides high accuracy in installing wall boards.

However, according to the present invention, the purpose of the lever is to temporarily connect the upper beam steel frame and the PC wall plate, which are provided with rotating metal fittings that engage with each other in advance, in parallel, and to lift them up integrally and place them at a predetermined location on the building. Both ends of the upper beam steel frame are connected to columns that have been erected in advance, and the rotating hardware attached to the lower part of the PC wall board is engaged with the rotating hardware on the lower beam steel frame, and then the upper beam steel frame and the PC wall board are temporarily parallel to each other. This was achieved by releasing the connection, rotating the PC wall plate half a turn, and after completing other related work around the column, returning the wall plate to parallel to the beam steel frame and finally attaching it to the column and beam frame. Ru.

Hereinafter, embodiments used in the method of the present invention will be described in detail with reference to the drawings.

First, the device of the present invention will be explained with reference to FIGS. 1 and 2. In the figures, 1a is the lower flange of the upper beam steel frame 1, 2a is the upper flange of the lower beam steel frame 2, and 3 is the PC
It is a wall board. Rotary hardware 5, 5' having a protruding female portion 4 is attached to the upper and lower center of this PC wall plate 3.

This female part 4 consists of a bearing formed on the surface of the plate 6, and the rotating hardware 5, 5' is connected to the PC wall mounting angle 8, which is attached to both ends of the plate 6 by bolts 7.
8' to connect these plates 6 and angles 8,
A PC wall mounting bolt 9 and a nut 10 are provided at the angles 8 and 8', which insert the PC wall board 3 at the U-shaped portion 8' and pass through the PC wall board 3.

In the figure, reference numeral 26 denotes a square washer, and in particular, an elongated hole 12 is formed in the angles 8 and 8' of the rotating hardware 5' to be attached to the lower part of the PC wall plate 3 so that the mounting bolt 9 can be moved during height adjustment. .

On the other hand, rotating metal parts 14 and 14' having male parts 13 are attached to the lower flange 1a of the upper beam steel frame 1 and the upper flange 2a of the lower beam steel frame 2, and this male part 13 is connected to the rotating metal parts 5 and 5'. The rotating hardware 14 consists of a shaft corresponding to the female part 4, and hooks 15, 15' that engage the left and right edges of the flange 1a are fixed to both ends of the plate 11 on which the male part 13 is protruded, with bolts 16. 11 and both hooks 15,1
5', the flange 1a is inserted from the left and right sides.

In order to prevent rattling of the rotating hardware 14 itself, a push-up pin 17 is provided on the opposite side of the male portion 13 of the plate 11 and brought into contact with the surface of the flange 1a. Parallel hooks 15, 15 and 15', 1
5' are interconnected by a horizontal plate 18.

The rotating hardware 14' has a plate 19 with a male portion 13 projecting thereon which is fixed to a base plate 20 fixed on the upper flange 2a of the lower beam steel frame 2 with bolts 21.

In this way, the rotating hardware 5, 5' can be removably attached to the top and bottom of the PC wall board 3 using the bolts 9 and nuts 10, and the rotating hardware 14, 1
4' are also removably attached to the lower flange 1a of the upper beam steel frame 1 and the upper flange 2a of the lower beam steel frame 2, respectively. Consists of a combination of

Next, the wall board erection method of the present invention will be explained.

The above-mentioned PC wall plates 3 are placed side by side in the stockyard at the site, but as shown in Fig. 3, the upper beam steel frame 1 is placed on top of the PC wall plate 3, and these upper beam steel frames 1 and
The stiffeners 22 protruding from the PC wall plate 3 are joined with temporary bolts to temporarily connect them in parallel. In addition, the above-mentioned rotating hardware 14 is attached to the upper beam steel frame 1.
Rotating hardware 5, 5' are set in advance on the top and bottom of the PC wall plate 3, and furthermore, although not shown, a rotating hardware 14' is attached to the upper flange 2a of the lower beam steel frame 2 already assembled in the building. put. 23 in Figure 3 is
Auxiliary wires are hung from the PC wall plate 3 to the upper beam steel frame 1, and 24 is a sling piece attached to the steel frame 1.

A mounting wire is hung on the piece 24 to integrally lift the upper beam steel frame 1 and the PC wall board 3.
As shown in the figure, the end of the upper beam steel frame 1 is joined to the column steel frame 25 and the like at a predetermined installation position.

At this time, the male part 13 of the rotating hardware 14' of the lower beam steel frame 2 is engaged with the female part 4 of the rotating hardware 5' at the bottom of the PC wall plate 3. Note that the rotating hardware 5' may not be provided in the stockyard, but may be attached when the PC wall board 3 is erected.

Next, remove the temporary bolts attached at the stockyard to release the temporary parallel connection between the upper beam steel frame 1 and the PC wall board 3, and push the end of the PC wall board 3, so that the wall board 3 pivots around the male part 13. The pillar 25 rotates half a turn, and a space is formed around the pillar 25.

The half-rotated wall plate 3 is fixed with temporary hardware, etc., and other related work such as joint welding of the pillar 25 around the pillar 25 and final tightening of high-strength bolts is performed using the above space.

In particular, when welding, the wall plate 3 is located perpendicular to the upper and lower beam steel frames 1 and 2, so this wall plate 3
serves as a windbreak.

When the related work is completed, as shown in Fig. 5, quickly rotate the wall plate 3 to position it parallel to the beam steel frames 1 and 2 as before, and then tighten the stiffener 2 of the wall plate 3.
2 and steel frames 1 and 2 are fully tightened. Further, the rotating hardware 5, 5', 14, 14' are removed and used elsewhere. Note that the rotating hardware 5 may be buried as the case may be.

As described above, the method of erecting wall panels in a building according to the present invention is simple, quick, and easy, as the PC wall panels are erected between the steel frames and are suspended integrally with the upper beam steel frame, so that only one lifting effort is required. The work can be done safely.

Additionally, the installed PC wallboards can be rotated to create space around the pillars for related work, increasing work efficiency, and the wallboards also serve as windbreaks. In addition, along with the setting of the upper beam steel frame, the positioning of the wall panels has almost been completed, increasing the accuracy of wall panel installation.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an embodiment of the construction equipment used in the method of the present invention, Fig. 2 is a front view of the same as above, Fig. 3 is a front view showing the procedure of the method of the present invention, and Fig. 4 5 is a perspective view showing the next step, and FIG. 5 is a front view showing the next step. 1... Upper beam steel frame, 1a... Lower flange, 2...
...Lower beam steel frame, 2a...Upper flange, 3...PC
Wall plate, 4... Female part, 5, 5'... Rotating hardware, 6...
...Plate, 7...Bolt, 8, 8'...PC wall mounting angle, 9...PC wall mounting bolt, 10...
Nut, 11...Plate, 12...Long hole, 13
... Male part, 14,14' ... Rotating hardware, 15,1
5'...Hook, 16...Bolt, 17...Push-up pin, 18...Horizontal plate, 19...Plate, 20...Base plate, 21...Bolt,
22... Stiffener, 23... Auxiliary wire, 2
4... Sling piece, 25... Pillar steel frame, 26...
...Square washer.

Claims (1)

[Claims] 1. Temporarily connect the upper beam steel frame and the PC wall plate, which are provided with rotating metal fittings that engage with each other in advance, in parallel and hang them together, and then attach both ends of the upper beam steel frame to the pre-erected pillars at the predetermined installation position of the building. The rotating hardware connected and attached to the lower part of the PC wall board is engaged with the rotating hardware on the lower beam steel frame, and then the temporary parallel connection between the upper beam steel frame and the PC wall board is released, and the PC wall board is rotated by half a rotation. A method for erecting wall boards in a building, which is characterized in that after other related work around the pillars is completed, the wall boards are returned to their original state parallel to the beam steel frame and permanently attached within the pillar-beam frame.