JPS6019848Y2 - steel column - Google Patents

Description

[Detailed explanation of the idea] This invention relates to steel columns.

Conventionally, when constructing a steel-framed reinforced concrete building, the main reinforcements of the columns were generally lifted by crane for each floor or every second floor, and then workers connected them to lap joints,
The reality is that connections are made using gas pressure joints or other connection methods.

This is because it is not preferable to make the length of the main reinforcing bars too long from the viewpoint of transportation, etc.

However, the more floors there are, the more difficult it becomes to lift and connect the main bars for each floor or every second floor.
Lifting and connecting work takes time and costs,
Furthermore, since the work of connecting the main reinforcing bars is performed at a high place, the more the number of times the work is performed, the more dangerous it becomes.

The purpose of this invention is to provide a steel column that makes main reinforcement work more efficient and safe.

Embodiments of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 indicates a steel column 1 made of H-shaped steel, and the length of this steel column is 8 m to 10 m, which corresponds to three floors.

Below both sides of the web 1a of the steel column 1, main reinforcement holding metal fittings 2.degree. 3.4 and 5 are provided, respectively.

Therefore, the specific structure of the main reinforcement holding fitting 2 among the main reinforcement holding fittings 2 to 5 will be explained based on FIGS. 3 and 4.

The holding fitting 2 consists of a receiving part 2a at the tip and a mounting part 2b at the base.

The receiving portion 2a is formed into a cup shape, and temporarily holds the lower end portion of the main reinforcement S within this receiving portion.

If a cross-shaped through hole 2c as shown in the figure is provided at the bottom of the receiving part 2a, water and dirt will be prevented from accumulating in this receiving part.
Moreover, the weight of the receiving part can be reduced.

Note that the shape of the through hole 2c is not limited to the upper side as long as the main reinforcement S does not come out from the bottom of the holding fitting 2.

Further, the mounting portion 2a of the holding fitting 2 is fixed to the web 1a by welding or the like.

The structure of the other main reinforcement holding fittings 3.4.5 is also substantially the same as that of the above-mentioned main reinforcement holding fitting 2, and components corresponding to this holding fitting 2 are given the same reference numerals.

Each main reinforcement S... is approximately equal in length to the steel column 1, as shown in Fig. 1, and its lower end is temporarily held by holding fittings 2 to 5, and its upper end is attached to the upper end of the steel column in a spiral manner. It is supported by straps 6 which are wound in a shape.

For example, a band may be used as a means for supporting the upper end of each main reinforcement S.

Next, how to use it will be explained.

The main reinforcements S... are installed in the steel column 1 in advance in a factory, and then transported to the site or installed at the site before the steel frame is erected.

At the same time as the steel column 1 is erected, the lower and upper ends of the main reinforcement S... are temporarily held by the holding fittings 2 to 5 of the steel column 1 and the tie bars 6, so they are carried to a predetermined position. .

Therefore, there is no need to specially lift only the main reinforcements S to the floor using a crane or the like.

Therefore, after connecting the lower ends of the column legs of the steel column 1, each main reinforcement S...
* are sequentially taken out from the holding fittings 2 to 5, connected to the reinforcing bars disposed below by a method such as a pressure welding joint, and set at each corner of the steel column 1 shown by the chain line.

In the same manner, another steel column holding the main reinforcement is lifted to a predetermined floor, and the columns are connected, as well as the main reinforcement located above and below.

In this way, the work of connecting the main bars for three floors can be completed only once.

As shown in FIG. 2, it is desirable that the positions of the receiving parts 2a of each of the holding fittings 2 to 5 be set inward from the line connecting the flanges lb and lc of the steel column.

In this way, when the steel column 1 is erected or transported, it does not come into contact with rice grains or the like, so there is no damage caused by contact, and there is an advantage that work such as transportation is easy.

The number of main reinforcements to be held by each holding fitting is not limited to one as shown above; instead, as shown in FIG. It may be possible to hold a plurality of pieces (two pieces in the drawing).

If this holding metal fitting 12 is used, it can be applied to cases where eight main reinforcing bars are required, for example.

In addition, in the case of four webs, it is also possible to arrange one holding metal fitting 12 on both sides of the web 1a.

12b is a mounting portion for the holding fitting 12, and 12c is a through hole.

As described above, according to the present invention, the main reinforcing bars can be temporarily held by the cup-shaped receiver of the main reinforcing metal fitting provided on the web, so even if the main reinforcing bars are long, they can be transported while being incorporated into the steel column. However, there is no problem in transporting the main reinforcing bars, and therefore, the main reinforcing bars can be lifted up to the floor at the same time as the steel columns at the site, so the work process of lifting the main reinforcing bars themselves independently can be omitted, and the number of times the main reinforcing bars must be connected can be reduced. Moreover, the main reinforcement end portion can be easily taken out from the receiving part, so that the reinforcement work can be made more efficient and safe, and the cost required for construction can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view;
Fig. 2 is a sectional view, Fig. 3 is an enlarged partially cutaway front view of the main bar holding fitting, Fig. 4 is an enlarged plan view of the main bar holding fitting, and Fig. 5 is a plan view showing another embodiment of the main bar holding fitting. It is. 1... Steel column, 1a... Web, 1b
, 1c...Flange, 2-5...Main bar holding bracket, 2a...Receiving part, 2b...Mounting part, 2c...・Through hole, 6... Stirrup,
12...Main bar holding bracket, 12a...Receiving part, 12b...Mounting part, 12c...
Through hole, S, Sl...Main reinforcement.

Claims (1)

[Claims for Utility Model Registration] It is constructed of IH section steel, and main reinforcement holding fittings are provided on both sides of the web, and the main reinforcement holding fittings are cup-shaped for temporarily holding the ends of the main reinforcement inside. A steel column characterized by having a receiving part. 2. A steel frame column according to claim 1 of the utility model registration claim, characterized in that two main reinforcing bars are provided on both sides of each web. 3. A steel frame column as set forth in claim 1 of the utility model registration claim, characterized in that the position of the receiving part of each main reinforcing metal fitting is located inward from a line connecting the end faces of both flanges. 4. A steel frame column as set forth in claim 1 of the utility model registration claim, characterized in that the bottom of the receiving part of each main reinforcement holding fitting is provided with a through-hole of a size that does not allow the main reinforcement to come out. 5. A steel frame column as set forth in claim 2 of the utility model registration claim, characterized in that the receiving portion of each main reinforcement holding fitting is capable of temporarily holding a plurality of main reinforcements.