JPH0427341B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for joining steel plate concrete walls and reinforced concrete members, which is implemented in large-scale buildings such as nuclear reactor buildings.

(Problem to be Solved by the Invention) There have been few examples in the past regarding the method of joining a steel plate concrete wall and a reinforced concrete member. There is a method of joining through.

This method involves bolting a steel plate concrete wall to a reinforced concrete member, but it is difficult to install because the anchor bolts must be installed with high precision, and at the same time requires on-site work because the anchor bolts must be tightened. It takes a lot of time. Furthermore, since the amount of steel material required for joining increases, the number of manufacturing steps for the members increases.

This invention was made to solve the above problems, and aims to rationalize and simplify on-site work by adopting a simple joining method.

(Means for Solving the Problems) In the present invention, loop reinforcements protruding from the end face of a steel plate concrete wall made of steel plates or the wall surface are fixed in the reinforced concrete member to join the two members.

In the steel plate concrete wall, the joint end surface or side surface on the side where the loop reinforcement is protruded is located on the side surface of the reinforced concrete member to be constructed later, the joint provided between this side surface, or the end surface of the reinforced concrete member, A loop muscle is installed to overhang that side. By inserting the reinforcing bars arranged in the reinforced concrete member into the loop reinforcement, or by overlapping in a ring with the U-shaped anchor bars fixed in the reinforced concrete member or the U-shaped reinforcing bars arranged in the reinforced concrete member, By inserting reinforcing bars into this annular portion, the integrity of the steel plate concrete wall and the reinforced concrete member is ensured. After arranging the reinforcing bars, the concrete of the reinforced concrete member is cast to fix the loop bars to the reinforced concrete member or to the joint, thereby joining the steel plate concrete wall and the reinforced concrete member.

A steel plate concrete wall is formed by filling the spaces between the steel plates on the wall with concrete, but the concrete may be filled in advance before joining with the reinforced concrete members, or it may be poured at the same time as the concrete is being poured for the reinforced concrete members. Good too.

Reinforced concrete members make up the various frameworks of buildings, and can serve as slabs, walls, or foundations depending on where the steel plate concrete wall is installed.

(Example) The present invention will be described below with reference to drawings showing examples.

First, the first invention will be explained based on FIGS. 1 to 4.

This invention involves positioning a steel plate concrete wall A (hereinafter referred to as SC wall A) with loop reinforcements 2 protruding from the joint end face 1, and positioning the joint end face 1 on the side of a reinforced concrete member B (hereinafter referred to as RC member B) that will be constructed later. , install the loop reinforcement 2 to extend toward the RC member B side, insert the reinforcing bars 5 through the loop reinforcement 2, and arrange the reinforcement of the RC member B.
This is a method to join SC wall A and RC member B by pouring concrete 3.

The wall surface 4 of the SC wall A is made of a steel plate, and the loop reinforcement 2 is attached by welding or the like to the inside of the wall surfaces 4, 4 so as to be sandwiched between the two wall surfaces 4, 4, and protrudes from the joint end surface 1. RC that will be installed later on this SC wall A
Place the loop bar 2 perpendicularly to the RC member B.
Extend it into position. Reinforcement for RC member B is carried out by inserting reinforcing bars 5 into loop reinforcements 2, then concrete 3 is placed, loop reinforcements 2 are fixed inside RC member B, and both members, SC wall A and RC member B, are placed. to join.

The concrete 6 to be filled into the SC wall A may be filled when the SC wall A is assembled and manufactured, but in the case of this invention, it is preferable to pour the concrete 6 at the same time as the concrete 3 of the RC member B.

Figure 1 shows SC wall A and RC member B that makes up the slab.
Fig. 2 shows an example of bonding with a thin wall. Figure 3 shows the case where SC wall A is connected to the foundation, and Figure 4 shows the case where it is connected to a thick wall. In FIGS. 1 and 3, the loop reinforcement 2 is joined to the wall surface 4 by welding, and in FIGS. 2 and 4, it is attached using studs 7.

Next, the second invention will be explained based on FIGS. 5 and 6.

This invention was created at the same time as the first invention.
The wall A is located at the joint a provided between the joint end surface 1 and the side surface of the RC wall B, and the loop reinforcement 2 is installed to extend toward the joint a side, and the reinforcing bar 5 is placed in the same manner as in the first invention. By arranging reinforcement and placing concrete 3
This is to join SC wall A and RC member B.

The distance between the joint end surface 1 and the RC member B, that is, the length of the joint part a, is approximately the protruding length h of the loop reinforcement 2, and a U-shaped wire fixed in the RC member B is connected to the joint part a. The U-shaped portion of the anchor strut 8 protrudes, and this U-shaped portion overlaps the loop strut 2 in an annular shape in cross section as shown. This loop muscle 2 and anchor muscle 8
Insert the reinforcing bar 5 into the annular part where the
After arranging the reinforcement of the RC member B, concrete 3 is poured to fix both the loop reinforcement 2 and the anchor reinforcement 8 to the joint part a, thereby joining the SC wall A and the RC member B.

In this case as well, filling SC wall A with concrete 6 may be done at the time of fabrication or at the same time as pouring concrete 3 of RC member B.

Figure 5 shows an example of the connection between the SC wall A and the foundation RC member B, where the loop reinforcement 2 is welded to the wall surface 4, and Figure 6 shows the case where it is connected to a thick wall, where the loop reinforcement 2 is welded to the stud 7. It is installed.

Next, the third invention will be explained based on FIG.

In this invention, the SC wall A is different from the first and second inventions in that the loop reinforcement 2 is formed by protruding from the wall surface 4 which is the surface of the steel plate, and the loop reinforcement 2 extends from the end surface of the RC member B to the inside thereof. It is installed by extending it. R.C.
In member B, a U-shaped reinforcing bar 9 having a U-shaped portion like the anchor bar 8 in the second invention is arranged parallel to the loop bar 2, and this U-shaped reinforcing bar 9 overlaps the loop bar 2 in an annular shape in cross section. It will be done. After reinforcing the RC member B by inserting the reinforcing bars 5 into the annular part made up of the U-shaped reinforcing bars 9 and the loop bars 2 in the same manner as in the second invention, concrete 3 is poured, and the loop bars 2 are inserted into the annular part. It is fixed in the RC member B to join the SC wall A and the RC member B.

In this case as well, filling the SC wall A with concrete 6 is the same as in the first and second inventions.

Although FIG. 9 shows an example of joining the SC wall A and the RC member B of the slab, the structure is similar when joining the wall.

In this invention, the loop reinforcement 2 is joined to the wall surface 4 by welding.

10 and 11 show other embodiments of the first invention, both of which are examples of joining an SC wall A and a slab RC member B, in which loops 2 are connected to the SC wall A by studs 7.
It is fixed at

Next, a method of attaching the loop reinforcement 2 to the SC wall A in the first and second inventions will be explained based on FIGS. 7 and 8.

A plurality of shaped steels 10 are arranged as separators on the joint end surface 1 and joined to the wall surface 4. Of course, a steel plate may be used here, but the shaped steel 10 is used because it saves the amount of steel used and makes it easy to attach the loop reinforcements 2. In addition, the section steel 10 serves as a colander that acts against shear force.

FIG. 7 shows the case of welding, in which the anchor part 2a of the loop reinforcement 2 is inserted from the joint end surface 1,
Fillet welding is performed on the inside of walls 4 and 4 as shown in Figure 7.

Figure 8 shows the case where the stud 7 is used, in which the anchor part 2a of the loop reinforcement 2 is inserted deeper from the joint end face 1 than when welding, and a plurality of studs are welded inside the walls 4, 4 in the depth direction. Stud 7
The loop reinforcement 2 is fixed by integrating with the concrete 6.

The methods of attaching these two types of loop reinforcements 2 and the joining of the SC wall A and the RC member B are not limited to the illustrated embodiment and can be combined arbitrarily.

(Effects of the Invention) The present invention is constructed as described above, and since the steel plate concrete wall and the reinforced concrete member can be reliably and easily joined, the workability is good and the on-site work can be streamlined. Furthermore, since it does not take much time to manufacture the parts, efficiency can be improved both in the factory and on-site.

[Brief explanation of drawings]

1 to 4, as well as FIGS. 10 and 11, are embodiments of the first invention, and FIGS. 1, 3, 10, and 11 are longitudinal sectional views, and FIG. , FIG. 4 is a cross-sectional view. 5 and 6 show an embodiment of the second invention, with FIG. 5 being a longitudinal cross-sectional view and FIG. 6 being a cross-sectional view. FIG. 9 is a longitudinal sectional view showing an embodiment of the third invention. FIGS. 7 and 8 show a method for attaching loop reinforcements to a steel plate concrete wall according to the first and second inventions, and are a cross-sectional view and a vertical cross-sectional view. A: Steel plate concrete wall, B: Reinforced concrete member, a: Joint part, 1: Joint end face, 2: Loop reinforcement, 2a: Anchor part, 3: Concrete, 4:
Wall surface, 5: Rebar, 6: Concrete, 7: Stud, 8: Anchor bar, 9: U-shaped reinforcing bar, 10: Shaped steel.

Claims (1)

[Scope of Claims] 1 A steel plate concrete wall is formed by protruding loop reinforcements from the joint end faces of steel plates constituting the wall surface, and the joint end face is positioned on the side of a reinforced concrete member to be constructed later, and the loop reinforcements are After installing the reinforced concrete member by extending it to the side, reinforcing the reinforced concrete member by inserting the reinforcing bars through the loop bars, then concrete is placed at the position of the reinforced concrete member, and the loop bars are fixed in the reinforced concrete member to connect both members. A method for joining a steel plate concrete wall and a reinforced concrete member. 2. A steel plate concrete wall formed by protruding loop reinforcements from the joint end faces of steel plates constituting the wall surface is positioned at a joint provided between the joint end face and the side surface of a reinforced concrete member to be constructed later,
After the loop reinforcement is installed with the loop reinforcement overhanging toward the joint, the U-shaped anchor reinforcement is fixed in the reinforced concrete member and the U-shaped part overhangs the joint, and the U-shaped anchor reinforcement is overlapped with the loop reinforcement in a ring, and the U-shaped anchor reinforcement is overlapped with the loop reinforcement in a ring. Insert reinforcing bars into the annular part to arrange reinforcement at the joint and reinforced concrete members, then pour concrete at the joint and reinforced concrete member positions, fix loop bars and anchor bars at the joint, and join both members. A method for joining a steel plate concrete wall and a reinforced concrete member. 3 A steel plate concrete wall is formed by having loop reinforcements protrude perpendicularly to the surface of the steel plates that make up the wall, and its side is positioned on the end face of a reinforced concrete member that will be constructed later, and the loop reinforcements are placed on the side of the reinforced concrete member. After installation, the reinforcing bars are overlapped in a circular manner with the U-shaped loop reinforcement bars arranged in a U-shape within the reinforced concrete member, and the reinforcing bars are inserted into the overlapping annular part to arrange the reinforcement in the reinforced concrete member. 1. A method for joining a steel plate concrete wall and a reinforced concrete member, which comprises: placing concrete at the position of the reinforced concrete member, fixing loop reinforcement within the reinforced concrete member, and joining both members.