JPH03180639A - Pillar-beam junction structure - Google Patents

Abstract

PURPOSE:To save labor in manufacturing and assembling of a pillar, and easily ensure the accuracy by arranging modified H-type junction metallic materials so that they are inscribed in the inner peripheral surface of the pillar, and screwing bolts into the junction metallic materials from split T metallic materials joined to steel framed beams. CONSTITUTION:A junction metallic material 4 having modified H-type cross-section is made up of abutting plates 4a, 4a directed in the different directions and provided with a female thread respectively, and a connecting plate 4b connecting the abutting plates to each other. The junction metallic materials 4 are arranged so that they are inscribed in the inner peripheral surface of a pillar 1, and bolts 5... are screwed into the junction metallic materials 4 from split T metallic materials 3... joined to the upper and lower positions of steel framed beams 2.... Thus, there is no need to cut the pillar 1, and as a result, the time required for construction is reduced, and transmission of stresses from the steel framed beams 2... to the pillar 1 can be positively ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a column-beam joint structure in which a column with a closed cross section and a steel beam are joined by placing a joining hardware inside the column.

(Issue 8 to be solved by the invention) A diaphragm is required to be placed at the joint between a closed cross-section column such as a square steel pipe and a steel beam in order to transmit stress. The through diaphragm method connects to the end face of a cut column at the upper and lower flanges of the beam that penetrates the beam, the internal diaphragm method connects the column to the upper and lower flanges of the beam inside the column that has been cut at the beam's web, and the column is cut. There are two main types: the outer diaphragm method, in which the outer diaphragm is joined to the outer periphery of the diaphragm.

However, in the former two methods, the cut pillars must be welded after joining in order to join the diaphragm, which takes time and effort, and makes it difficult to ensure the accuracy of the pillars. The reality is that both of them have drawbacks in terms of construction, such as the troublesome processing required.

This invention was made in light of the current state of conventional structures, and aims to propose a new structure that eliminates the need for cutting columns and saves labor in factory manufacturing and on-site construction.

(Means for Solving the Problems) In the present invention, the deformation H A joint metal fitting with a cross-sectional shape of 100 mm is placed inscribed in the column, and sprues are connected to this joint metal piece at the upper and lower flange positions of the steel beam. 7) Bolts from the T metal fittings are screwed together to connect the steel beam and the column. This eliminates the need to cut the columns and saves the labor involved in cutting, while at the same time ensuring the transmission of stress from the steel beams to the columns.

Adjacent joining hardware is arranged with one contact plate of each adjacent to each other facing the connection direction of the steel beam, and is joined to the column by a bolt passing through the lower split hardware and the column.

(Example) The present invention will be explained below based on the drawings showing one embodiment.

As shown in FIG. 1, this invention connects a column 1 with a closed cross section such as a square steel pipe and a steel beam 2 to a split lower metal fitting 3 connected to the upper and lower flanges of the steel beam 2, and a connecting metal fitting placed inside the column l. 4 and a bolt 5 is screwed into the joint. In FIG. 1, the left side of the center line shows the case where the split lower hardware 3 is bolted to the flange of the steel beam 2, and the right side shows the case where they are butted and welded.

As shown in FIGS. 3 and 2, which show manufacturing examples, the joining hardware 4 contacts the inner circumferential surface of the column 1, or in the case of a square steel pipe, spans over two sides, and includes contact plates 4a facing in different directions; 4a and a connecting plate 4b connecting both abutting +114a and 4a, it has a modified H-shaped cross section, and is inscribed in the column 1 and placed at the position of the lower split metal fitting 3. This joining hardware 4 may have a plurality of connecting plates 4b.

As shown in FIG. 2, the adjacent joining hardware 4.4 has one abutment plate 4a, 4a adjacent to each other and facing the connection direction of the steel beam 2, and these two abutment plates 4a, 4a It is connected to the split T hardware 3.

Further, the abutment plate 4a of the joining hardware 4 has a female thread 4c cut into it, into which the bolt 5 is screwed, and this abutment plate 4a itself serves as a nut.

The vertical connecting plate 4b of the joining hardware 4 reinforces the joint of the column I, and at the same time, the stress between the steel beam 2 and the web of the column I is transmitted to each other.

Additionally, the inside of the column 1 may be filled with concrete to increase the rigidity and strength of the joint.

(Effects of the Invention) The present invention is as described above, and the structure of the joint is simple because there is no need to cut the pillar to reinforce the joint of the pillar, and it is sufficient to simply drill bolt holes on the side. , manufacturing or assembling the pillars is labor-saving, and at the same time, accuracy can be easily ensured.

In addition, the stress from the steel beam can be transferred to the column web in the direction perpendicular to it by the connection plate of the joint metal, and the stress can be transmitted smoothly.

Furthermore, since the bolt is screwed into the joining metal fitting 4, the work at the site is easy.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view showing an embodiment of the present invention, Fig. 2 is a plan view, and Fig. 3 is an example of manufacturing a joint metal fitting, where 1 is a plan view, and n and m are respectively X-X ray, Y-
It is a Y-line elevation view. l... Column, 2... Steel beam, 3...
...Split lower hardware, 4...Joining hardware, 4a
...Abutment plate, 4b...Connection plate, 4c.
...Female screw, 5...Bolt. Y Shi- Figure + (-----...

Claims (1)

[Claims] (1) A modified H-shaped cross-sectional shape is formed by a female-threaded abutting plate that abuts the inner circumferential surface of a column with a closed cross-section and faces in different directions, and a connecting plate that connects the abutting plates. It is a joint structure in which a joining hardware is placed inscribed in a column, and bolts from split T hardware connected to the upper and lower flanges of the steel beam are screwed into this joining hardware to join the steel beam to the column. , a column-beam joint structure characterized in that adjacent joint hardware is arranged with one contact plate of each adjacent to each other facing the connection direction of the steel beams.