JPS5836725Y2 - 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 opposite to 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 pulling tool. The method is to pull it together and fix it.

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

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

In FIG. 1, reference numerals 1 and 2 represent a first steel bar and a second steel bar having appropriate lengths, each having a male threaded portion 3, 4 formed at one end, and a plate 5.about.6 fixed to the other end.

7 and 8 are, for example, first wires of different lengths as shown in FIG.
An elastic machine consisting of a leaf spring 9 and a second leaf spring 10, the drawing leaf springs 9 and 10 are formed into a U-shape, and both ends thereof are connected to one connecting piece 1.
1, the two bombs 7 and 8 are connected in series.

Then, a hole 9a is formed in the longitudinal center of the first leaf spring 9, which is one of the bullets 7, and the male threaded portion 3 of the first steel bar 1 is inserted into the hole 9a, and the nut 12 is screwed into the hole 9a. The first steel bar 1 and the ammunition 7 are connected by.

Also, the second leaf spring 10 and the connecting piece 11 which are the other ammunition 8
7110a and 11a are formed in the center in the longitudinal direction, and the male screw part 4 of the second steel bar 2 is inserted into the holes 10a and lla, and the nut 13 is screwed in, thereby connecting the second steel bar 2 and the bullet. 8 are connected.

In this case, spring steel having the same elastic modulus may be used for both bullets 7 and 8, or spring steel having different elastic modulus may be used.

In addition to the bolt insertion holes 5a, 6a, 15a, and 23a, the plates 5 and 6 and the place fixing pieces 15 and 23 fixed to the plates with bolts and nuts have an arm rod of a pulling tool (described later). ) through the insertion holes 5b, 6b, 1
5 b and 23 b are 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 6 and the place fixing piece 23 on the side to which the pulling tool is applied.

Further, 2a is a flat plate portion of the second steel bar 2, which is located at the intersection when the places are stretched in a crosswise manner, and prevents both places from coming into contact with each other at the intersection and being distorted.

To explain the procedure for installing the place with the above structure between the place fixing pieces on the building side, first, as shown in FIG. It is fixed with a nut, and then an arm rod 18 with a right-hand thread 17 and an arm rod 20 with a left-hand thread 19 are screwed into each end of the hexagonal nut 16. 21, insert the tip of one arm rod 18 of the tool 21 into the insertion hole 6b of the plate 6, and insert the tip of the other arm rod 20 into one hole 23 of the place fixing piece 23 provided at the upper end of the column 22. b and rotate the hexagonal nut 16 using an operating tool such as a wrench.

Then, since each arm rod 18.20 has a right-hand thread and a left-hand thread, which are opposite to each other, the rotation of the hexagonal nut 16 causes the arm rods 18.20 to move toward each other.

Therefore, the plate 6 through which the arm rods 18, 20 are inserted and the place fixing piece 23 are drawn together as the arm rods 18, 20 move.

Then, with the bolt insertion hole 6a of the plate 6 and the bolt insertion hole 23a of the place fixing piece 23 aligned, the rotation of the hexagonal nut 16 is stopped, and the bolt is inserted into both insertion holes 6a and 23a, and tightened with the nut. Fix it by doing this.

When the fixing is completed, remove the pulling tool 21, and then install a new place between the place fixing piece 15 at the lower end of the column 22 and the place fixing piece 23 at the upper end of the column 14 using the same procedure as above. .

In this case, the length of each place and the interval between the place fixing pieces are slightly different due to errors in manufacturing, processing, and construction accuracy, but each place has two bullets 7 and 8 connected in series. Therefore, both the bullets 7 and 8 are elastically deformed in accordance with the tensile force during place tensioning, and tensioning can be carried out even if there is the above-mentioned accuracy error.

In addition, since the two bombs 7 and 8 are connected in series, the amount of displacement can be large, and even if there is a large accuracy error, the tension can be maintained.

Since the place according to the present invention is constructed as described above, errors in manufacturing, processing, and construction accuracy can be effectively absorbed by the bullet machine during place tensioning, and tensioning can be performed reliably and easily. .

Therefore, the production and machining accuracy of the place can be relaxed by the amount absorbed by the bullet, and there is also the advantage that the production and machining costs can be reduced accordingly.

[Brief explanation of drawings]

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...First steel bar, 2...Second steel bar, 5
, 6... plate, 7, 8... ammunition.

Claims (1)

[Scope of utility model registration request] The first plate spring and the second plate spring are each formed into a U-shape, one end of the first steel bar is connected to the center of the first plate spring, and one end of the second steel bar is connected to the center of the second plate spring. A place characterized in that the first leaf spring and the second leaf spring are connected to each other and both ends of the first leaf spring and the second leaf spring are attached to a negative connecting piece.