JPH0261238A - Steel plate concrete method - Google Patents

Abstract

PURPOSE:To make construction easy by laying floor steel plates as structural materials or permanent forms horizontally over the upper parts of wall blocks and column blocks and placing concrete in placing spaces of the wall blocks and column blocks and on the floor steel plates. CONSTITUTION:A wall block 7 and a column block 8 are welded by using a steel plate 6 to build up in a field. The wall block 7 is such that two parallel steel plates 6 and 6 are connected with a plurality of steel partitions 9, and a placing space surrounded by steel plates 6, 6 and partitions 9, 9 is formed. A column block 8 consists of four steel plates 6, and the placing space 10 surrounded by the steel plates 6 is formed. The wall blocks 7 and column blocks 8 are properly erected, and floor steel plates 22 are horizontally laid over the upper parts of erected wall blocks 7 and column blocks 8. Concrete 33 is placed into placing spaces 10 of the wall blocks 7 and column blocks 8. Placement is successively made every placing space 10.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a steel plate concrete construction method for constructing nuclear reactor buildings and the like.

[Problems to be solved by this invention]

The construction of buildings for nuclear reactor facilities, such as nuclear reactor buildings, generally involves cast-in-place reinforced concrete construction using reinforcing bars, concrete forms, and the like.

Therefore, many skilled workers (reinforcing bar workers, carpenters, etc.) are required, and construction procedures such as assembling reinforcing bars, installing embedded hardware, erecting formwork, pouring concrete, and dismantling formwork require a correspondingly long construction period. The current situation is that it is difficult to shorten the construction period.

This invention was made to solve the above-mentioned problems, and an object thereof is to provide a steel plate concrete construction method that is easy to construct and can shorten the construction period.

[Means to solve the problem]

The steel plate concrete construction method according to the present invention is for constructing a concrete structure using blocks formed using steel plates as a formwork that also serves as a structural material.

A wall block and a column block, which are formed using at least one steel plate and have a pouring space inside, are continuously erected. A floor steel plate serving as a structural material or a temporary formwork is laid horizontally over the upper portions of the wall blocks and column blocks. Concrete is poured into the spaces where wall blocks and column blocks are placed, and onto the steel floor plates.

(Function) Since wall blocks and column blocks are used as formwork that also serves as structural materials, and concrete is poured into these pouring spaces, the time and effort of reinforcing reinforcement, assembling formwork, and demolding are reduced. It can save labor.

It also requires fewer skilled workers than was previously required.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

1〉 Construction of the foundation (Fig. 1) In the figure, 1 is an L-shaped reinforcing frame, and the anchor, which is a fixing device, is inserted through the L-shaped anchor frames 2, which are stretched over this reinforcing frame 1. The bolt 3 is made to protrude upward.

The upper end of this anchor bolt 3 is made to protrude above the upper end reinforcement 4, and an L-shaped liner 5 is attached to this upper end.

Incidentally, each upper end portion of the anchor bolt 3 is made to protrude above the liner 5 as well.

In addition to anchor bolts, anchor reinforcing bars, differential bars, etc. can be used as anchoring devices.

The foundation concrete 12 is poured so as to be flush with the liner 5 to form a foundation.

<2> Erection of blocks (Fig. 2) Wall blocks 7 and column blocks 8 are installed on site using steel plates 6.
Weld and assemble.

The wall block 7 is made by connecting two parallel steel plates 6.6 with a plurality of steel partition walls 9.
．． A pouring space 10 surrounded by 9 is formed.

(FIG. 8I) The column block 8 is formed by four steel plates 6, and a casting space 10 surrounded by the steel plates 6 is formed.

These wall blocks 7 and pillar blocks 8 are erected as appropriate. First, the column block 8 is erected at the required position, and then the wall block 7 is erected between the column blocks 8 and 8. Both blocks 7.8 are placed on the liner 5, and anchor bolts 3 serving as fixing devices are passed through holes formed in the bent portions 11 at the lower ends of each block 7.8 and tightened with nuts. The seams between adjacent blocks 7.8 are welded.

(Fig. 7 ■) The above shows the case where each block 7.8 is fixed using the anchor bolt 3, but other fixing methods are possible. What is shown in FIG. 7 (■) is a structure in which a reinforcing bar coupler 13 is buried in the foundation concrete 12, a reinforcing bar is connected to this reinforcing bar coupler 13, and each block 7.8 is fixed to this. Figure 7 ■ shows a reinforcing bar 14.14 whose lower part is buried in the foundation concrete 12 and is erected vertically.
4.14 is fixed to each block 7.8. What is shown in FIG. 7 (■) is a structure in which stand bolts and the like are protruded from below the steel plates 6.6 of each block 7.8, and these are buried in the foundation concrete 12 and erected.

In addition to the case where the partition wall 9 described above is used as the wall block 7.7, as shown in FIG. It may also be one in which ties 16 such as flat bars are connected.

In addition, as shown in Fig. 8 (■), stud bolts 17 are directly welded to the opposing surfaces of the steel plates 6, 6, or rib members 18 are welded to the opposing surfaces of the steel plates 6, 6, and the stud bolts 17 are fixed thereto. You may. Tie these two steel plates 6, 6 to 1
8 is a case in which finishing boards 19 such as PC boards, ALC boards, siding boards, etc., are placed adjacent to each other on the outside of two steel plates 6, 6, as shown in FIG. 8 (2). FIG. 8 (2) shows a case in which a wall is constructed using steel plates 6 on one side and ordinary weir plates 20 on the other. In this case, as shown in Figure 8 (■), the weir plate 20 is a PC.
It may also be a disposable formwork such as a board. Furthermore, Fig. 8 (■) shows a wall block 7 with steel plate 6 and omnia plate 2 facing each other.
This is the case when .

3) Installation of the floor steel plate (Figure 3) The floor steel plate 22 is laid horizontally over the upper part of the wall block 7 and column block 8 that have been erected as described above. As the floor steel plate 22 in FIG. 3, a folded plate type as shown in FIG. 9I is used.

An L-shaped angle member 23 is formed by horizontally fixing the end of such a floor steel plate 22 to the surface of the wall block 7 or column block 8.
Place it on top and pass it around.

As for the floor steel plate 22, in addition to the folded plate type, there is also a shaped steel type in which a shaped steel 25 is fixed on the steel plate 24 as shown in FIG.
As shown in Figure ■, a plurality of corrugated lines 26 are formed on the steel plate
A reinforcing bar truss type can be used in which a truss consisting of a combination of steel rods 27 and a fixed truss is fixed. Further, as shown in FIG. 9 (2), a normal formwork type in which reinforcing bars 29 are set on a weir board 28 made of plywood or the like can also be used. Further, a deck plate type in which a deck plate 31 is placed as a waste form on a temporary beam 30 as shown in FIG. 9 (2) can also be used. Furthermore, as shown in Fig. 9 ■, the Omnia plate 3
2 can also be used. Other steel plates 24.24 on the upper and lower surfaces, and steel ribs 37.3 connecting them, as shown in Figure 9 ■.
Slabs formed by 7 can also be used.

<4> Concrete pouring (Fig. 4) Concrete 33 is poured into the pouring space 10 of the wall block 7 and column block 8. The pouring is performed sequentially for each pouring space 10.

5> Slab reinforcement (Fig. 5) Slab reinforcement 34 is arranged on the floor steel plate 22. Slab muscle 34
As shown in FIG. 5, a structure in which vertical and horizontal reinforcements are assembled in advance and integrated can be adopted, and this is suspended and arranged on the floor steel plate 22. At the top of the wall block 7 and pillar block 8,
A plurality of reinforcing bar penetration holes 35 that penetrate horizontally are drilled horizontally, and reinforcing bars 36 for joints are inserted into these reinforcing bar penetration holes 35, and the reinforcing bars 36 protruding from this block 7.8 and the slab reinforcement 34 are overlapped. and make a lap joint.

FIG. 10I shows the folded plate type joint,
Figure 1O ■ shows the joint of the above-mentioned type steel, No. 10
Figure ■ shows the joint of the above-mentioned reinforcing bar truss type, the 10th
Figure ■ shows the joint part of the normal formwork type, No. 10.
Figure V shows the joint of the deck plate type, and Figure 10 (2) shows the joint of the Omnia plate.

〔Effect of the invention〕

This invention has the above-described configuration, and constructs a concrete structure by erecting preformed wall blocks and column blocks and pouring concrete into the casting spaces of both blocks.

Therefore, the labor required for complicated operations such as assembling reinforcing bars, installing embedded hardware, and dismantling formwork can be reduced, thereby shortening the construction period. Furthermore, construction can be carried out without requiring many skilled workers.

By adjusting the thickness of the steel plates used for the wall blocks and column blocks, the force resistance and deformability can be easily improved. Further, by providing a reinforcing block or the like on this steel plate in advance at a factory or the like, the opening can be easily reinforced.

[Brief explanation of the drawing]

Figures 1 to 6 are perspective views showing the construction order of the present invention, Figures 7 I to 7 are sectional views showing the foundation fixing part of the block, and Figure 8
Figures I to ■ are cross-sectional views of wall blocks, Figures 9 ■ to ■ are floor steel plates, ■ to ■ are perspective views, ■ to ■ are cross-sectional views, ■ are perspective views, and Figures 10 ■ to ■ are perspective views. FIG. 3 is a cross-sectional view of the joint between the wall/column block and the floor formwork. 3. Anchor bolt, 4. Top reinforcement, 5. Liner, 6. Steel plate, 7. Wall block, 8. Column block.
1o...Pouring space, 22...Floor steel plate, 33...Concrete. l flash ■ ■

Claims (1)

[Claims] (1) Continuously erect wall blocks and column blocks that have a pouring space inside and use at least one steel plate on the surface, and horizontally span the floor steel plate over the upper part of both blocks. A steel plate concrete method that is characterized by pouring concrete into the space where wall blocks and column blocks are placed and onto the steel floor plate.