JPS58204241A - Attachment of pc wall - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an attachment method for fixing the upper and lower parts of PC walls that partition rooms on each floor to a beam and a slab integrated with the beam in a multi-story concrete building.

A conventional method of mounting a PC wall of this type is shown in FIGS. 1 to 4.

In Fig. 1, the upper part of the PC wall 1 has reinforcing bars 2 for anchors.
is planted, and the upper side surface 3 of the PCC wall and the end 5 of the first formwork 4 for slab form a formwork for the lower peripheral surface of the beam 6, and The side surface 7 and the second slab formwork 8 form a formwork for the slab 9 that is connected to the beam 6. In addition, in order to set a surface 11 that is the end surface of the slab 10 that is connected to the other side of the beam 6 and becomes the side surface of the upper part of the beam 6, a floating formwork 12 with a cross section of "upside down" shape is installed. do. The floating formwork 12 is the anchor reinforcing bar 2 of the PC wall 1.
It is held in place by a stopper 13 that is removably fixed to the holder. In the state of B, the first and second slab
Concrete is poured onto the formworks 4 and 8 to form the beams 6 and slabs 9 and 10. It should be noted that a shaped steel 14 or the like is inserted in advance at a location that will become the beam 6, and reinforcing bars or the like are also inserted in the slabs 9 and 10 in advance. Further, the anchor reinforcing bars 2 are dimensioned to protrude above the slab 9 after concrete placement.

After the concrete has solidified, as shown in FIG. 2, the floating formwork 12 and the fasteners 13 are removed, and the leveling pads 16 for height adjustment are attached to the anchor reinforcing bars 2.

Next, as shown in Figure 3, another P
The C-walls 17 are connected and the height is adjusted by the number of level/e-threads 16. Then, an iron plate 19 called a cotter exposed in a notch 18 at the bottom of another PC wall 17 is welded to the anchor reinforcing bar 2 to be integrated with the PC wall 1.

Finally, as shown in FIG. 4, a seal 20 is placed at the bottom of the other PC wall 17, and waterproof mortar 21 is filled.

However, according to the conventional installation method described above, it is difficult to achieve positional accuracy of the floating formwork 12, so the slab level is
In addition, it takes time and effort to install, remove, and clean the floating formwork 12, and a large amount of welding between the anchor reinforcing bars 2 and the joint 19 is required, and the position of the anchor reinforcing bars 2 is misaligned. It takes a lot of time and effort to repair or weld, and it also takes a lot of time on the PC.
There is a problem in that it takes time and effort to fill the waterproof mortar 21 under the wall 17.

The present invention was made to solve these conventional problems, and eliminates the need for floating formwork and waterproof mortar.
The purpose of the present invention is to provide a PC wall mounting method that requires less welding.

The gist of the present invention is to install PC walls vertically in advance,
The purpose is to use these as part of the formwork when placing concrete for slabs and beams.

The present invention will be explained below with reference to embodiments shown in FIGS. 5 to 10. It should be noted that the same members and parts as in the prior art will be described using the same reference numerals.

In FIG. 5, according to the method of the present invention, the lower PC wall 1 is erected in advance as in the conventional method, and the upper side surface 3 of the PC wall 1 and the end 5 of the first formwork 4 for another slab are connected. Beam 6 (Figures 6-7)
In addition to forming a formwork for the lower peripheral surface of the space 60, the slab 9 (sixth to (See Figure 7).

According to the present invention, another PC wall 17 is connected to one part of the PC wall via an anchor member 22.

The beam space 60 is located at the side surface 23 of the lower part of the other PC wall 17.
Form the upper side formwork. As will be described later, the anchor 3-1 member 22 allows the height of the PC wall 17 to be adjusted, and the I-shaped steel 14 and the like are arranged in the beam space 60 as in the conventional case.

Next, as shown in FIG. 6, the first and second formworks 4 for slabs are
, 8 to form a beam 6 and slabs 9 and 10 connected to both sides of the beam 6, and the anchor member 22 is buried in the slab 9.

Next, as shown in FIG. 7, the first and second slab formworks 4 and 8 are removed, and if necessary, a waterproof sealing material 24 is packed in the lower part of the PC wall. Incidentally, the upper surface of the slab 9 may be made to be at the same height as the upper surface of the slab 10, if necessary.

As is clear from the description of the above embodiment, in the present invention, the upper PC wall 17 is used as a formwork for the slab 10, so the work is extremely easy compared to the conventional case where a floating formwork is prepared separately. become.

The anchor member 22 is made of, for example, a bolt 25, as shown in FIGS. It is fixed to the upper part of the PCC wall.

On the other hand, a receiving part 27 to which the anchor member 22 is connected is provided at the lower part of the PC wall 17. A similar receiving part 28 is also provided at the bottom of the PC wall 1.

Regarding the receiving part 27, when the anchor member 22 is made of a bolt 25, it is made as a nut member 29. After the bolt 25 is screwed into the nut member 29 to a predetermined depth, the bolt 25 is inserted into the embedded plate 26.
is fixed to. The height of the PC wall 17 can be adjusted by changing the depth of engagement of the bolt 25 with the nut member 29. Further, as another embodiment, at least one of the bolt 25 and the nut member 29 can be made rotatable, and each can be installed on the PC walls 1 and 17 from the beginning. In addition, in FIG. 8, the reference numeral 30 indicates a reinforcing bar.

Since welding between the anchor member 22 and the receiving portion 27 is not particularly necessary, there is an advantage that the amount of welding can be reduced.

Figure 10 shows how to stabilize the upper part of the PCC wall. The upper part of the PCC wall has a buried play (31) (see Figure 9) protruding for hanging. The buried plate 31 is P
It can be hung with the hook of the CC10 crane when being suspended and transported, and has a hole 32 formed therein for the hook to pass through. After the PCC 10 is erected at a predetermined position as shown in FIG. It is connected and fixed to the section 34. Note that a plurality of nuts 35 are screwed onto the bolt 33. The bolt 33 is embedded in the beam 6 or the slab 9.

As explained above, according to the present invention, the upper PC side is connected to the lower PC wall in advance so that the level can be adjusted, and the upper PC wall is used as a formwork when pouring beam or slab concrete. Since it is used as a conventional floating formwork, there is no need for heavy use of finishing waterproof mortar, and there is an advantage that the amount of welding between the upper and lower PC walls can be reduced. In addition, there is no need to measure the level of floating formwork or level packing as in the past, and it is only necessary to measure the connection position of the anchor member and the receiving part once. Furthermore, since the upper PC wall is used as a ruler to level the slab concrete, there is also the advantage that the level accuracy of the slab is improved.

[Brief explanation of the drawing]

1 to 4 are process diagrams showing a conventional PC wall mounting method, respectively, and explanatory diagrams showing longitudinal sections of the same PC wall, and 5th to 7th figures are positional examples of the present invention, respectively. FIG. 8 is a process diagram showing the installation method according to
9 is a detailed explanatory view of FIG. 7, FIG. 9 is an explanatory view of the right side of the PC wall of FIG. 8, and FIG. 10 is an enlarged explanatory sectional view taken along the line X--X of FIG. 9. Explanation of symbols 1...PC wall 3...Side surface 4...First formwork for slab 5...End portion 691. beam
7...Other side 8...Second formwork for slab 9...
・Slab 10...Slab 17...Other P
C wall 22... Anchor member 23... Side = 7
- 25...Bolt 26...Embedded plate 2
7... Receiving part 28... Receiving part 29... Nut member 30... Reinforcing bar 31... Buried plate
33... Del Toro 0... Liang Space Patent Applicant Mitsui Construction Co., Ltd. Company Agent Patent Attorney Mitsuo Narushima 8- Procedural Amendment Writing Method) September 29, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1 , Indication of the case Japanese Patent Application No. 57-83320 2 Title of the invention PC wall mounting method 3 Person making the amendment
Relationship with the applicant case Representative director and president Town 1) Ryoji 5, date of amendment order, August 31, 1980 6, subject of amendment Application: Mei 5 (E147, contents of amendment 220- as attached)

Claims (1)

[Claims] The P wall on the floor directly above is installed on the PC wall soil on the lower floor, which has already been constructed.
A method for installing a PC wall, characterized in that the C wall is connected via a level-adjustable anchor member, and the inner surface of the PC wall on the floor immediately above is poured with concrete as a floating formwork.