JPH10183863A - Jig for load point reinforcement of structural members - Google Patents

Abstract

(57) [Problem] To provide a load point reinforcing jig for a structural material capable of freely reinforcing an H-shaped steel used as a structural member such as a beam. SOLUTION: A support nut 3a installed inside a flange 1a of an H-section steel 1 and a support bolt 3b installed between the support nuts 3a, 3a with both ends screwed to the support nut 3a.
It is composed of Also, flange 1a and support nut
The support plate 3c is interposed between the support nut 3a and the support plate 3c by welding. Further, a wrench hook 3d is provided at the center of the support bolt 3b, and male screw portions on both upper and lower sides are formed with reverse screws from the wrench hook 3d. Further, a rib 3e for preventing co-rotation of the support nut 3a with the support bolt 3b is protruded from an edge of the support plate 3c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is intended to reinforce a fulcrum and a load point which receives a concentrated load, particularly when an H-section steel is used as a structural member such as a beam of a temporary structure or a cut off of a stake. The present invention relates to a jig for reinforcing a load point of a structural member to be installed.

[0002]

2. Description of the Related Art In general, H-beams are widely used not only as beams and pillars of buildings and structures, but also as beams of temporary structures and cut-offs of landscaps. In particular, H-beams used as beam members are often reinforced with stiffeners so that they do not buckle under a concentrated load at fulcrums and load points. The safety technical guidelines for shoring in construction work specifically require such reinforcements.

Conventionally, as shown in FIG. 2, for example, a reinforcing plate of a rectangular plate shape is formed between a fulcrum and upper and lower flanges 1a, 1a of a portion receiving a concentrated load, as shown in FIG.
It is done by attaching.

However, in such a reinforcing method, the reinforcing plate 2 is made up of the upper and lower flanges 1a and the webs 1b of the H-shaped steel material 1.
Since it is integrally attached by welding to the side of, once it is fixed, it can not be easily removed and not only can not change the position, but also especially in the case of leasing products, such as welding heat etc. There was a problem because of the adverse effects of

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is intended to be used as a structural member such as a beam.
It is an object of the present invention to provide a structural material load point reinforcing jig capable of freely reinforcing a shaped steel.

[0006]

According to the present invention, there is provided a jig for reinforcing a load point of a structural member according to the present invention, comprising: a support nut provided inside a flange of an H-section steel; And a support bolt which is screwed and installed. A support plate is interposed between the flange and the support nut by welding the support plate to the support nut. Further, a wrench hook is provided at the center of the support bolt, and the male screw portions on both upper and lower sides are formed with reverse threads from the spanner hook. Further, a locking nut for preventing the supporting nut from loosening is screwed to the supporting bolt. Further, a rib is provided on the edge of the support plate to prevent the support nut from rotating together with the support bolt.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 of the Invention FIG. 1 (a) shows an embodiment of the present invention. In the drawing, reference numeral 3 denotes an H-shaped steel which is interposed between upper and lower flanges 1a, 1a of an H-shaped steel 1 installed as a structural member such as a beam. 1 is a load point reinforcing jig for reinforcing a fulcrum and a portion receiving a concentrated load. The load point reinforcing jig 3 has support nuts 3a, 3a installed inside the upper and lower flanges 1a, 1a of the H-section steel 1, and upper ends thereof are screwed to the support nuts 3a, 3a between the support nuts 3a, 3a. And a supporting bolt 3b vertically erected. In addition, support bolt
As 3b, a bolt made of stainless steel or alloy steel, a PC steel rod having threaded ribs, or the like is used.

In such a configuration, the load point reinforcing jig 3 is set between the upper and lower flanges 1a, 1a by rotating one or both of the upper and lower support nuts 3a and pressing the upper and lower flanges 1a. It should be noted that a loosening nut (not shown) is screwed inside the upper and lower support nuts 3a to make the upper and lower nuts double, thereby preventing the support nut 3a from being loosened. If one or both of the flanges 1a and the support nut 3a are connected by welding the support plate 3c to the support nut 3a (see FIG. 1 (b)), the upper and lower flanges 1
The support bolt 3b can be installed in a more stable state between a and 1a.

As shown in FIG. 1 (c), a wrench portion 3d having a square or polygonal cross section is formed at the center of the support bolt 3b, and male screw portions on both upper and lower sides of the wrench portion 3d. May be formed as mutually opposite screws. By doing so, a wrench such as a spanner is hung on the spanner hook 3d,
When the support bolt 3b is turned through this wrench, both the upper and lower support nuts 3a, 3a move in the vertical direction at the same time, so that the jig can be set between the upper and lower flanges 1a, 1a with one-touch operation. Further, as shown in FIGS. 1 (d) and 1 (e), if a rib 3e is engaged with the edge of the flange 1a at the edge of the support plate 3c, the upper support nut 3a or the support bolt
The co-rotation of the support plate 3c when turning the 3b can be prevented.

Although the description has been given of the case where the load point of the H-section steel used as a structural member is reinforced,
The present invention is not limited to the shape steel, and can be installed to reinforce a portion of another structural member which receives a concentrated load.

[0011]

According to the present invention, a jig for reinforcing a load point of a structural member according to the present invention has the above-described structure, and has a support nut installed inside a flange of an H-shaped steel as a structural member such as a beam. Since the support nut is formed between the support nut and the support bolt which is screwed into the support nut at both ends, the fulcrum and load point of the H-shaped steel can be very reliably reinforced while the structure is extremely simple. Since it is not welded and fixed to structural members, it can be used repeatedly and repositioned easily, and there is no risk of adversely affecting the structural members due to welding heat, etc., and is particularly suitable for lease structural members .

[Brief description of the drawings]

1 (a), (b), (c), (d), and (e) are cross-sectional views of an H-section steel showing a mounting state of a load point reinforcing jig.

FIG. 2 is a cross-sectional view of an H-section steel showing an example of a conventional example for reinforcing a load point of the H-section steel.

[Explanation of symbols]

 1 ... H-shaped steel, 2 ... Reinforcement plate, 3 ... Load point reinforcement jig.

Claims (5)

[Claims] 1. A load point reinforcing jig installed between flanges of a structural member made of an H-shaped steel, wherein a support nut is installed inside the flange, and both ends of the support nut are connected to the support nut. A load point reinforcing jig for a structural member, comprising a support bolt which is screwed and installed. 2. The load point of a structural member according to claim 1, wherein a support plate is interposed between the flange and the support nut, and the support plate and the support nut are welded. Reinforcement jig. 3. The structure according to claim 2, wherein a rib is provided on the support plate to be engaged with an edge of the flange to prevent corotation with the support bolt of the support nut. A jig for reinforcing the load point of a member. 4. The support bolt according to claim 1, wherein a wrench hook is provided at a central portion of the support bolt, and the male screw portions at both upper and lower portions are formed with reverse screws.
Item 4. A jig for reinforcing a load point of a structural member according to item 3 or 3. 5. The structural member according to claim 1, wherein a locking nut for preventing the supporting nut from loosening is screwed to the supporting bolt. Load point reinforcement jig.