JPS6248032B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention rotatably supports wall plates on beams on the upper and lower floors, making it possible to perform connection work such as welding the joints of columns close to the outer periphery of the wall plates. Regarding the mounting structure of wall plates.

Conventionally, for example, installing PC seismic wall plates between steel columns has been a problem in that it takes time and effort, and an improvement has been desired.

It is an object of the present invention to install wall boards at the same time as erecting steel frames, etc., so that the installation can be done easily, quickly, and at low cost. Another purpose is to make it possible to rotate the wall plate in an out-of-plane direction to easily secure work space for welding and other work to enable this type of work.

A feature of the present invention is that approximately the center of each of the upper and lower sides of the wall board is connected and supported to the upper and lower beams by upper and lower connectors each consisting of a connecting pin and a bearing, and the wall board and the upper beam can be disconnected from each other. The wall plate is connected at the connecting portion of the wall plate, and in this released state, the wall plate is rotatable in an out-of-plane direction about the connecting pin.

An embodiment of the present invention will be described below based on the drawings.

In Fig. 1, the wall board 1 is connected and supported at the center of each of its upper and lower sides to the steel beams 2 and 3 on the upper and lower floors by means of upper and lower connectors 4 and 5, and both sides of the wall board are It is close to the column steel frames 6, 6 to which the beam steel frames are connected.

Here, the specific configuration of the upper connector 4 will be explained as follows.
This will be explained based on the diagram. A notched recess 6 is formed in the center of the upper side of the wall plate 1, and a mounting plate 7 is provided to protrude from the bottom surface of this notched recess. Above this mounting plate, a mounting plate 8 hangs down from the outer surface of the lower flange 2a of the beam steel frame 2 on the upper floor, and is in close proximity to the mounting plate 7 of the wall board within the cutout recess 6. On one side of each mounting plate 7 and 8 (the right side in FIG. 3), there is a retaining plate 11 and a
2 are fixed to each other through bolts 14 passing through elongated mounting holes 13 and nuts for fixing them. Bearings 9 and 10 are provided at the center of holding plates 11 and 12, and both bearings are provided with shaft holes 15 and 16 whose axes coincide in the vertical direction. One connecting pin 17 is provided in the shaft holes 15 and 16.
is loosely fitted, and this connecting pin is rotatable relative to the bearings 9 and 10. The upper and lower ends of the connecting pin 17 are in contact with the bottom surface of the notch recess 6 and the outer surface of the lower flange 2a of the beam steel frame on the upper floor.

The structure of the lower connector 5 is shown enlarged in FIGS. 4 and 5, but is substantially the same as the structure of the upper connector 4. The reference numerals indicating the constituent parts of the lower coupler 5 that correspond to the constituent parts of the upper coupler 4 have an "a" appended to the reference numeral indicating the upper coupler. In this lower connector 5, the mounting plate 8a is erected at the center of the upper flange 3b of the beam steel frame 3 on the lower floor, and the mounting plate 7 is located in the notch recess 6a at the center of the lower side of the wall plate 1.
It faces a.

The axes of the upper and lower connecting pins 17 and 17a are located on the same vertical line G (FIG. 1), and this vertical line is parallel to the vertical center of gravity line passing through the center of gravity of the wall board 1.

In addition, in FIG. 1, connecting parts 18 and 18a are provided that sandwich the upper connector 4 and span the wall plate 1 and the steel beam 2 of the upper floor to releasably connect both the wall plate and the steel beam. . That is, relatively shallow and small notch recesses 19, 19a are formed on the upper side of the wall plate 1, sandwiching the notch recess 6, and coupling pieces 20, 20a are protruded into both the notch recesses. In addition, connecting pieces 21 and 21 are attached to the outer surface of the lower flange 2a of the steel beam on the upper floor, facing the connecting pieces 20 and 20a, respectively.
The upper and lower connecting pieces 20 and 20a, 21 and 21a overlap in the cutout recesses 19 and 19a, and the left connecting piece 21 is attached to the back side of the connecting piece 20 on the wall board 1 side, The connecting pieces 21a are located in front of the connecting pieces 20a, and are connected to each other by bolts 22.
For this purpose, remove the bolts and connect the connecting pieces 20, 21, 20.
When the connection between a and 21a is released, the wall plate 1 can rotate in an out-of-plane direction around the connecting pins 17 and 17a. Note that the method of connecting the wall plate 1 and the beam steel frame 2 is such that the wall plate is attached to the connecting pins 17, 17 in the uncoupled state.
It is not limited to the above example as long as it can rotate around a. 23 is a brace in this example.

Next, a method for attaching the wall plate 1 will be explained.

The upper connector 4 is assembled in advance at the assembly factory or on-site.
The connecting pin 17 constituting the shaft hole 1 of the bearings 9 and 10
5 and 16, with both bearings connected,
The connecting pieces 20 and 21, 20a and 21a are connected with bolts 22, . . . to support the wall plate 1 on the beam steel frame 2 on the upper floor. First, as shown in Fig. 6, the upper floor steel columns 6 are placed on the lower floor steel columns 6a, 6a.
Temporarily fasten 6. Next, when the beam steel frame 2 is lifted with the wire W, the wall plate 1 is also lifted at the same time, and the wall plate is suspended between the column steel frames and inserted into the shaft hole 15a of the bearing 9a of the lower connector of the wall plate. A connecting pin 17a, which has been set up in advance, is inserted into the bearing 10a of the lower connecting device of the floor beam steel frame 3. At this time, the upper and lower connecting pin 1
If the axes 7, 17a are misaligned, loosen the bolts 14 on the upper connector 4 side and slide the bearings 9, 10 left and right to finely adjust their positions. After that, remove the bolts 22, .
figure). Therefore, the wall plate 1 is supported by the beam steel frames 2 and 3 only by the connecting pins 17 and 17a. Thereafter, the wall plate 1 is rotated in an out-of-plane direction (in the direction of the arrow in FIG. 8) around the connecting pins 17, 17a, and connections such as welding of the joints 6b, 6b (FIG. 7) of the column steel frames 6, 6 are performed. Perform fixed work. At this time, connect pin 1
Since pins 7 and 17a are located on the vertical line G parallel to the center of gravity of the wall plate 1, no stress other than the vertical load is applied to these pins. After completing the work of connecting and fixing the columns, return the wall plate 1 to its original position as shown by the chain line in Figure 8.
Then, the opposing connecting pieces 20 and 21, and 20a and 21a are again connected by bolts. Then, the lower end of the brace 23 is connected to the upper flange 3b of the beam steel frame 3 on the lower floor. After that, the bolts 1 of the upper and lower connectors 4 and 5
4. Remove the bearings 9, 1 from the mounting plates 7, 8.
0 and the connecting pins 17, 17a, and use it as a connecting tool for a wall plate on the same floor or on a higher floor.
Then, a connecting plate is placed on the mounting plates 7 and 8, and the mounting plates are connected and fixed with bolts. Lower mounting plate 7
The same applies to a and 8a.

As explained above, according to the present invention, the wall plate can be rotated even after it is attached to the beam by using a simple connecting tool, so that the joints of columns etc. Work such as welding can be easily performed. In addition, wall plates can be connected to beams and hung at the same time as the beams, wall plates can be installed at the same time as steel frames, etc., and wall plates can be set by simply inserting bearings into the lower connecting pins. Therefore, the installation of the wall board can be carried out easily and quickly. Furthermore, the connector can be repurposed, so
Economically advantageous.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view showing the installed state of the wall plate, FIG. 2 is an enlarged front view of the upper connector, and FIG. 3 is a sectional view taken along the line shown in FIG. 2. , FIG. 4 is an enlarged front view of the lower connector, FIG. 5 is a sectional view taken along the line of FIG. It is a figure which shows the rotated state. 1...Wall plate, 2, 3...Beam steel frame, 2a, 3b...
... Flange of beam steel frame, 4... Upper connector, 5...
Lower connector, 6... Notch recess, 7, 7a, 8, 8
a... Mounting plate, 9, 9a, 10, 10a... Bearing, 14, 14a... Bolt, 15, 15a, 1
6, 16a...Shaft hole, 17, 17a...Connection pin, 18, 18a...Connection part, 19, 19a...
Notch recess, 20, 20a, 21, 21a... coupling piece, 22... bolt, G... vertical line.

Claims (1)

[Scope of Claims] 1. The upper and lower connectors that connect and support the wall board to each beam are the same, spanning approximately the center of each of the upper and lower sides of the wall board and each of the upper and lower beams adjacent to each side. It is provided on a vertical straight line, and has a connecting part that straddles the upper beam and the wall plate and releasably connects them. A bearing with a mounting plate protruding from the flange of the beam, a mounting plate protruding from the outside of the flange of the beam so as to face and abut against the mounting plate, and a shaft hole provided on one side of each mounting plate adjacent to the mounting plate. are provided in a removable manner, and connecting pins are loosely fitted into the vertically opposing shaft holes, and when the wall board is disconnected from the upper and lower beams, the upper and lower connecting pins are the center of the connection pins. A wall board mounting structure characterized by being rotatable in one direction.