JPS5919050Y2 - brace - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a novel place used for reinforcing lightweight steel buildings.

The present applicant has previously proposed a new method of reinforcing lightweight steel buildings using a fixed length of place without turnbuckles.

In this method, one end of the place is first fixed to one of a pair of place fixing pieces installed facing each other on the building side such as columns and beams, and then the other end and the other place fixing piece are pulled together using a separate tool. The method is to pull it together and fix it.

The purpose of the present invention is to provide a new place for use in reinforcing steel buildings using this method.

Next, an embodiment of the place according to the present invention will be described based on the drawings.

In FIG. 1, reference numeral 1 denotes a place, which is composed of a steel bar 2 having an appropriate length and plates 3 and 4 fixed to both ends of the bar.

The one plate 3 is made of a spring plate and has a bent part 5 formed in a U-shape when viewed from the side, and when the place 1 is stretched, as shown in FIG. The bent portion 5 is configured to expand and stretch in the stress line direction P against the elastic force of the plate 3 itself.

2a is a flat plate portion of the steel bar 2 and is located at the intersection when the places 1 are stretched in a crosswise manner.

In addition, the plates 3 and 4 and the plates and bolts.

Place fixing pieces 7 and 15 fixed with nuts have bolt insertion holes 3a, 4a, 7a, and 15a as well as insertion holes 3b, 4b, 7b, and 1 through which arm rods of a pulling tool, which will be described later, are inserted.
5b is formed (see Figure 3).

However, it is sufficient that the insertion hole through which the arm rod is inserted is formed at least only in the plate 4 and the place fixing piece 15 on the side to which the pulling tool is applied.

To explain the procedure for tensioning the place 1 with the above structure between the place fixing pieces on the building side, first, as shown in FIG. , and then fix the arm rod 10 with a right-hand thread 9 at each end of the hexagonal nut 8.
and an arm rod 12 formed with a left-hand thread 11 are prepared.
Insert the tip into the insertion hole 4b of the plate 4, and insert the other arm rod 1.
Place fixing piece 15 provided at the top end of the column 14
The hexagonal nut 8 is inserted into one of the holes 15b and rotated using an operating tool such as a wrench.

Then, since each arm rod 10.12 is formed with a right-handed thread and a left-handed thread in opposite directions, the rotation of the hexagonal nut 8 causes the arm rods 10.12 to move toward each other.

Therefore, the plate 4 through which the arm rods 10 and 12 are inserted and the place fixing piece 15 are drawn together as the arm rods 10 and 12 move.

Then, with the bolt insertion hole 4a of the plate 4 and the bolt insertion hole 15a of the place fixing piece 15 aligned, the rotation of the hexagonal nut 8 is stopped, and the bolt is inserted into both the insertion holes 4a and 15a, and tightened with the nut. Fix it by doing this.

When the fixing is completed, remove the pulling tool 13, and then install a new place between the place fixing piece 7 at the lower end of the column 14 and the place fixing piece 15 at the upper end of the column 6 using the same procedure as above. .

It should be noted that the present invention is not limited to the specific configurations shown in the above embodiments, but can also be implemented, for example, in the following manner.

That is, the other plates 4 are also made of similar spring plates.

In this case, both plates may use spring plates with the same elastic modulus, or may use spring plates with different elastic coefficients.

As described above, in the present invention, since at least one of the plates at both ends is made of a spring plate and has a bent portion formed in a U-shape in side view, the width of expansion and contraction is large. Manufacturing and machining accuracy can be relaxed by the range of expansion and contraction, and since it has a simple structure of having plates at both ends of the steel bar, manufacturing is simple and the number of parts can be reduced.

[Brief explanation of the drawing]

The figures show one embodiment of the place according to the present invention, with Fig. 1 being an overall front view, Fig. 2 being a detailed perspective view of the main parts, and Fig. 3 explaining the procedure for installing the place shown in Fig. 1. This is a diagram. 1... Place, 3, 4... Plate.

Claims (1)

[Scope of utility model registration request] A place characterized in that a steel bar has plates at both ends, and at least one of the plates at both ends is made of a spring plate and has a bent portion formed in a U-shape in side view.