JPH04111804U - Steel beam pin joint structure - Google Patents

Abstract

(57) [Summary] [Purpose] To construct a pin joint structure for steel beams that can simplify construction, significantly shorten the construction period, and do not require special tools such as electric wrenches. [Structure] A steel rod 1 is attached to the lower surface of the joint end of the steel beam A, and a pair of falling prevention pieces located on both sides of the steel rod 1 and having locking hooks 2a on the lower edge are attached, and the steel beam A steel tray 4 into which the steel rod 1 is fitted is provided on the receiving material 3 of the steel beam B or steel column C to which A is connected, and the locking hooks 2a are engaged with the lower portions of both sides of the tray 4. A drop-off prevention groove 4a is provided.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a pin joint structure for steel beams.

0002

[Conventional technology]

Conventionally, in this type of structure, as shown in FIG. Drilling bolt holes in Eb plate b, and attaching the other steel to be connected to the same steel beam. A gusset plate d with bolt holes drilled in the trabecular bone c is installed, and when the steel frame is erected, Insert temporary bolts into the bolt holes of the web plate and gusset plate to assemble. Then, tighten all the bolts using high-strength bolts e to complete the joint. It had been completed.

0003

[Problem that the idea aims to solve]

The conventional structure described above is complicated to construct, requires a lot of labor and time, and requires high-strength bolts. A tightening tool such as an electric wrench is required for tightening. The present invention was proposed in view of the problems of the above-mentioned prior art, and its purpose is It is easy to install, can significantly shorten the construction period, and does not require special tools such as electric wrenches. The purpose of this invention is to provide a pin joint structure for steel beams that does not require it.

0004

[Means to solve the problem]

In order to achieve the above object, the steel beam pin joint structure according to the present invention A steel rod is located on the lower surface of the joint end, and locking hooks are located on both sides of the steel rod and on the lower edge. Attach a pair of falling prevention pieces with A steel saucer into which the steel rod fits is provided, and the steel bars are placed at the bottom of both sides of the saucer. It is constructed by providing a fall-off prevention groove into which the locking hook of the fall-off prevention piece engages.

[0005]

[Effect]

Since the present invention is constructed as described above, the joint end of the steel beam is connected to the joint member. When suspended on the receiving material, the steel rod on the receiving material is pushed open by the beam's own weight. The steel rod is placed in the same tray and the joining is completed. At this time, the falling prevention pieces on both sides of the steel rod are It descends along both sides of the saucer, and the locking hooks provided on the lower edge of each fall-prevention piece are at the front. It engages with the fall prevention grooves provided at the bottom of both sides of the recording tray to prevent the steel beam from falling off.

[0006]

【Example】

The present invention will be described below with reference to the illustrated embodiments. A is a steel beam, with a steel rod 1 fixed to the lower surface of the joint end, and a steel beam with the same steel rod 1 in between. A pair of drop-off prevention pieces 2 each having a locking hook 2a at the lower end are vertically provided. B is a steel beam that is connected to the steel beam A, and is installed protruding from the side joint of the steel beam B. A steel tray 4 into which the steel rod 1 is fitted is fixed on the receiving material 3, and both sides of the tray 4 are fixed on the tray 3. A drop-off prevention groove 4a with which the locking hook 2a engages is provided at the lower part.

[0007] Since the illustrated embodiment is constructed as described above, the joint end of the steel beam A is When suspended from the support material 3 of the steel beam B, the steel tray 4 is lifted by the steel rod 1 due to the weight of the steel beam A. The steel rod 1 is pushed out and fitted into the receiving tray 4. At the same time, the fall prevention piece 2 The fall prevention piece 2 descends along the outer surface of the saucer 4 and is inserted into the fall prevention groove 4a of the saucer 4. The lower end locking hook 2a is engaged to prevent the steel beam A from falling off, thus preventing the steel beam A from falling off. , B are completed.

[0008] Figure 3 shows a case where a steel beam A is connected to a steel column C. are given the same reference numerals.

[0009]

[Effect of the idea]

According to the present invention, a steel rod is placed on the lower surface of the joint end of a steel beam, and both sides of the steel rod are sandwiched between the steel rods. Attach a pair of fall prevention pieces with locking hooks on the lower edges of the steel beams. On the receiving member provided on the mating member, a steel receiving plate into which the steel rod is fitted is arranged. In addition, drop-off prevention grooves are provided at the lower sides of both sides of the tray, with which the locking hooks of the drop-off prevention piece engage. By this, steel beams can be assembled with a one-touch method by simply suspending the steel beams from the connecting members. Can be pin-jointed, making installation simple and greatly shortening construction time. No special equipment is required.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a pin joint structure for steel beams according to the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a front view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional steel beam joint structure.

[Explanation of symbols]

A Steel beam B Steel beam C Steel column 1 steel rod 2 Fall prevention piece 2a Locking hook 3 Received material 4 Steel saucer 4a Fall prevention groove

Claims (1)

[Scope of utility model registration request] Claim 1: A steel rod and a pair of drop-off prevention pieces located on both sides of the steel rod and having locking hooks on the lower edge are attached to the lower surface of the joint end of the steel beam, and A steel saucer into which the steel rod fits is provided on the receiving material disposed on the joining member, and a fall prevention groove into which the locking hook of the fall prevention piece engages is provided at the bottom of both sides of the saucer. A steel beam pin joint structure characterized by the following: