JPH0514998Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a temporary steel beam support fitting suitable for supporting a temporary steel beam mainly in temporary construction work of S-frame construction.

(Conventional technology) Conventionally, as a method for fixing steel beams to steel frames,
As shown in FIG. 5, there is a method in which a mounting piece 10 having a U-shaped cross section is welded to the upper surface of a flange S1 of a steel frame S in advance. This is to suspend the steel beam H by inserting a suspension bolt 20 fixed to the attachment piece 10 into the end H1 of the steel beam H.

Furthermore, Japanese Patent Laid-Open No. 57-193668 discloses a temporary beam consisting of a mounting part that is attached to a lower flange of a steel frame, and a temporary beam support block that is provided in the mounting part so that its height can be adjusted freely and supports a steel beam. A support device is described.

(Problems to be Solved by the Invention) However, the former method of attachment using the attachment piece 10 has the following problems.

First, in order to fix one steel beam H, two
It is necessary to weld the mounting pieces 10. Therefore, in shoring work in which a large number of steel beams H are usually installed, an extremely large amount of labor and time is spent on welding the mounting pieces 10, and as a result, a large amount of cost is incurred in installing the steel beams H. To hang.

Secondly, since the mounting piece 10 is welded to the steel frame S, there is a risk that the quality of the steel material may change due to the heat during welding, which poses a problem in the support strength of the mounting piece 10.

Thirdly, in order to suspend the steel beam H from the suspension bolt 20, lift the steel beam H and insert the suspension bolt 20 into the end of the steel beam H from the upper end surface of the steel beam H. The retaining nut 30 etc. must be screwed onto the lower end of the hanging bolt 20 while maintaining the condition. Therefore, after inserting the hanging bolt 20 into the steel beam H, attach the fixing nut 3 to the lower end of the hanging bolt 20.
0, it was necessary to temporarily fix the steel beam H using a predetermined temporary hanging fitting (not shown). Therefore, not only does the temporary fixing work require extra effort, but also the steel beam becomes extremely unstable during temporary fixing.

Furthermore, the latter temporary beam support device requires the use of prismatic support beams when each attachment portion is attached to the lower flange of the steel frame. Furthermore, when the temporary beam support block supports a steel beam, the same support beam is used. This receiving piece is interposed between the flange and the mounting part that clamps the lower flange, and
A temporary beam support block is used by placing it on top of this support. Therefore, in order to support the steel beams, the prismatic support beams for each temporary beam support device are transported to the vicinity of the steel frame outside of this temporary beam support device, and the support beams and the temporary beam support device are combined. It will be a work to install it. As a result, it takes a lot of effort to install the temporary beam support device, and when installing it,
There was an inconvenience that the number of parts to be transported during disassembly increased.

Therefore, this idea was devised to solve the above-mentioned problems.It does not require any welding work to install the steel beams, has fewer parts, and is extremely easy to install. The purpose of the present invention is to provide a temporary steel beam holder that allows the installation and dismantling of beams to be carried out safely and easily.

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, this invention consists of a telescopic fixed screw rod that is crimped between the flanges of a steel frame, and a fixed screw rod that is slidably attached to the outer surface of the fixed screw rod, A support body that supports a steel beam in a height-adjustable manner via a beam support member.

The support body has a slide cylinder part that is slidably attached to a fixing screw rod, and a support arm that extends from the side of the slide cylinder part and supports a steel beam, and has an adjustment arm that is screwed to an external screw. The height is adjusted by bringing the lower end surface of the slide cylinder of the support body into contact with the upper end surface of the nut, and the steel beam is supported via a beam support material that is stretched between adjacent support arms.

The length of the fixing screw rod is adjusted by inserting an internal screw into the inside of a cylindrical external screw, and bringing the end of the fixing nut screwed into the internal screw into contact with the open end of the external screw. Use it as a means to solve problems.

(Function) According to this invention, the fixed screw rod is crimped and fixed between the flanges of the steel frame material by adjusting its own length.

The support body is fixed at the position of the adjustment nut screwed onto the external thread by sliding the slide cylinder portion onto the fixing screw rod. A support arm protruding from the side surface of the slide tube supports the steel beam.

The steel beam is supported by being engaged with a beam support member that extends between adjacent support arms.

The entire length of the fixed screw rod is adjusted by adjusting the position of the internal screw inside the external screw.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

The reference numeral 1 shown in the figure is a fixed screw rod, S
It is crimped and fixed between opposing flanges S1 of a steel frame S used as a structural beam material. The fixing screw rod 1 is
By fitting the internal screw 1B into the inside of the cylindrical external screw 1A, bringing the end surface of the fixing nut 1C screwed onto the internal screw 1B into contact with the open end of the external screw 1A, and rotating this fixing nut 1C. Adjust the exposed length of the internal screw 1B. In order to ensure the fixing force of the fixed screw rod 1, an abutment piece 1D and an abutment piece 1E are provided at the upper end of the outer thread 1A and the lower end of the inner thread 1B, respectively.

In addition, an external screw 1A is arranged on the upper part of the fixed screw rod 1, an internal screw 1B is arranged on the lower part of the fixed screw rod 1, and an external screw 1A is arranged on the upper end surface of the fixing nut 1C screwed to the internal screw 1B. The open ends are brought into contact (see Figure 2). At this time, the vertical positions of the external screw 1A and the internal screw 1B can be reversed, without being limited to the illustrated example.

Reference numeral 2 denotes a support 2 that supports a temporary steel beam H via a predetermined beam support material P. The structure of the support body 2 includes a slide cylinder part 2B that is slidably attached to the outer periphery of the external screw 1A, and a plate-like support arm 2C that extends and extends from the outer surface of the slide cylinder part 2B. Furthermore, a mounting piece 2D having a U-shaped cross section is provided at the upper end of the support arm 2C. And external screw 1A
The height of the support body 2 is adjusted by bringing the open end of the slide tube 2B into contact with the upper end surface of an adjustment nut 2A screwed onto the outer surface of the slide tube 2B, and by turning the slide tube 2B. In order to lock the steel beam H to this support body 2, first, a predetermined beam support material P, which is mainly used as a bulkhead, is placed on top of the adjacent placement pieces 2D. Then, the end H1 of the steel beam H is secured to the upper surface of the beam receiving material P.

In addition, with this devised fitting, the distance between the flanges is approximately 195 mm.
It is planned to be installed on a steel frame S of ~440mm.

(Effects of the invention) This invention achieves its original purpose by being configured as described above.

In other words, an extensible fixing screw rod that is crimped between flanges of a steel frame, and a support that is slidably attached to the outer surface of the fixing screw rod and supports a steel beam H in a height-adjustable manner via a predetermined beam support material. As a result, the conventional welding process can be omitted from the work of installing steel beams mainly in S-structure construction, and various drawbacks of the conventional welding work can be eliminated. In addition, since it is not welded to the steel frame, it is possible to remove this designed receiving bracket as soon as the floor slab is completed, making disassembly work easier.

Moreover, since steel beams are installed by placing their ends on beam supports supported by supports, predetermined temporary suspension fittings, etc. are used instead of the conventional method of suspending steel beams H from hanging bolts. You don't have to. Therefore, the work of installing the steel beam is not only facilitated, but also the work is highly safe.

The support body has a slide cylinder part that is slidably attached to the fixing screw rod, and a support arm that extends and is fixed to the side surface of the slide cylinder part to support the steel beam, and the adjacent support arms are mutually connected to each other. Since the steel beam is supported via the beam support material that spans the structure, the number of members is small and the steel beam can be installed extremely easily.

In other words, installation of this devised fitting is completed by simply crimping it between the flanges of the steel beam. Therefore, unlike conventional temporary beam support devices of this kind, it is no longer necessary to use prismatic support beams when attaching each attachment part to the lower flange of the steel frame, and the prismatic support beams for each temporary beam support device are This freed them from the work of transporting the supporting beams to the vicinity of the steel frame. Furthermore, since it is sufficient to attach the steel beam to the beam support material, the installation work of the temporary beam support device has become extremely simple.

Furthermore, the supporting height of the steel beam can be adjusted by contacting the lower end surface of the sliding cylinder of the support body with the upper end surface of the adjusting nut screwed onto the external thread, and the end surface of the fixing nut screwed onto the internal thread can be Combined with the fact that the length of the fixing screw rod can be adjusted by bringing it into contact with the open end of the rod, extremely efficient height adjustment becomes possible.

As described above, according to this invention, no welding work is required to install the steel beams, and the number of parts is small, making the installation work extremely easy, and the installation and disassembly work of the steel beams can be carried out safely and efficiently. It has various practical effects, such as being able to easily perform and extremely efficient height adjustment.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; Fig. 1 is a front view showing the state of use, Fig. 2 is a vertical sectional view, Fig. 3 is a right side view, Fig. 4 is a plan view, and Fig. 5 is a front view showing the state of use. It is a front view showing a conventional example. S...Steel frame, S1...Flange, H...Steel beam, H1...End, P...Beam receiving material, 1...Fixing screw rod, 1A...External thread, 1B...Internal thread, 1C...
...Fixing nut, 1D...Abutting piece, 1E...Abutting piece, 2...Support, 2A...Adjusting nut, 2B...
...Slide tube part, 2C...Support arm, 2D...Placement piece, 10...Mounting piece, 20...Hanging bolt, 3
0...Fixed nut.

Claims (1)

[Scope of utility model registration request] It consists of an extensible fixed screw rod that is crimped between the flanges of the steel frame, and a support that is slidably attached to the outer surface of the fixed screw rod and supports the steel beam in a height-adjustable manner. The upper end surface of an adjustment nut screwed onto the fixing screw rod, which has a slide tube that is slidably attached to the screw rod, and a support arm that extends and is fixed to the side of the slide tube to support the steel beam. The height is adjusted by touching the lower end surface of the slide cylinder of the support body, and the steel beam is supported through the beam support material that is stretched between adjacent support arms. Insert the internal screw inside,
A steel beam holder for temporary construction, which adjusts its length by bringing the end face of a fixing nut screwed onto an internal thread into contact with the open end of an external thread.