CN203238784U - Rectangular concrete filled steel tubular column and box-type steel beam rib-penetrated type node structure - Google Patents

Abstract

The utility model discloses a rectangular steel pipe concrete column and a box-shaped steel beam piercing joint structure, which is pre-welded with a connecting steel plate on the end face of the box-shaped steel beam, and the width of the connecting steel plate should not be greater than the connection of the rectangular steel pipe concrete column. The width of the surface, and the surrounding of the connecting steel plate should protrude beyond the end face of the box-shaped steel beam. Holes are processed around the protruding surrounding of the connecting steel plate, and the box-shaped steel beam is fixed to the rectangular steel pipe concrete column through the hole with high-strength bolts. design position. The utility model has simple node structure, convenient on-site, saves steel, effectively transmits the bending moment and axial force between the structures through the high-strength bolts through the ribs, makes the structure more integral, and will not cause structural damage due to node damage during earthquakes. The overall destruction of the building realizes the design concept of "strong section and weak structure".

Description

Rectangular steel tube concrete column and box steel beam piercing joint structure

technical field

The utility model belongs to the field of construction engineering and relates to a combined structure of steel and concrete.

Background technique

In recent years, the frame structure system consisting of rectangular steel pipe concrete columns and steel beams has been applied in China for high-rise building structures. Rectangular steel tube concrete column frame structure can not only improve the two-way performance of the frame structure, but also improve the lateral stiffness and stability of the steel structure frame, prevent the column from rapidly buckling damage when the structure is damaged, and enhance the fire performance of the structure. The steel tube concrete structure combines steel and concrete into a whole, which makes the two materials complement each other, enhances the local stability of the steel tube, and improves the strength of the concrete. Rectangular steel tube concrete-steel frame structure can meet the needs of flexible layout of the building, provide a large building space, meet various functional requirements, and can also form a variety of facade shapes, with high overall mechanical properties and seismic performance.

At present, in the rectangular steel tube concrete-steel frame structure, the steel girders are mainly I-shaped and H-shaped steel, and some use box-shaped steel girders, which are mostly used in long-span structures and bridge structures. In the ordinary frame structure, the advantages of high bearing capacity, good mechanical performance and relatively regular cross-sectional form can be brought into play. Most of the joints of the box-shaped steel girder adopt the construction method of on-site welding, and the box-shaped steel girder is welded on the rectangular steel pipe. The welding method belongs to the rigid joint structure. The rigid joint structure has problems such as poor joint ductility and large welding residual stress, and is prone to brittle failure under earthquake action.

Utility model content

The purpose of the utility model is to overcome the deficiency of the welding form of the rectangular steel pipe concrete frame, and provide a rectangular steel pipe concrete column and a box-shaped steel beam piercing joint structure.

In order to achieve the above object, the technical scheme that the utility model takes is:

A rectangular concrete-filled steel tube column and box-shaped steel beam piercing joint structure, characterized in that it is pre-welded with connecting steel plates on the end faces of the box-shaped steel beams, and the width of the connecting steel plates should not be greater than the connecting surface of the rectangular steel-filled steel tube concrete columns width, and the surrounding of the connecting steel plate should protrude beyond the end face of the box-shaped steel girder, and a number of holes are processed around the protruding surrounding of the connecting steel plate, and the box-shaped steel beam is fixed to the rectangular steel pipe concrete column through the holes with high-strength bolts design position.

In order to ensure the quality of the project, when welding and connecting steel plates, the surrounding fillet welds should ensure that the welding is firm.

Compared with the prior art, the utility model has the following advantages:

1. Since the connecting steel plate can be pre-welded at the end of the box-shaped steel girder in the factory to become an integral component, the on-site construction only needs to be connected by bolts, which makes the on-site construction convenient and simple, and avoids the construction trouble and welding stress of on-site welding the adverse effects brought about.

2. Connect the rectangular steel tube concrete column with high-strength bolts through the reinforcement, which acts as an inner partition, which can effectively transmit the tension and pressure of the upper and lower flanges of the steel beam; It is more conducive to the pouring and compaction of concrete in the pipe.

3. The box-shaped steel beam has high bearing capacity and good mechanical performance. At the same time, the cross-sectional form is relatively regular (compared to H-shaped steel), and the later decoration is more convenient.

In short, the structure of the joint is simple, the site is convenient, and steel is saved. The bending moment and axial force between the structures can be effectively transmitted through the high-strength bolts through the reinforcement, so that the structure is more integrated, and the structure will not be damaged due to the damage of the joint during an earthquake. The overall destruction of the building realizes the design concept of "strong section and weak structure".

Below with reference to accompanying drawing, the utility model is further described:

Description of drawings

Fig. 1 is the front view of the utility model, shows in the figure that rectangular steel tube concrete column two sides are provided with box-shaped steel girder;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is a top view of the utility model, which shows that box-shaped steel beams are arranged on four sides of a rectangular steel tube concrete column.

The legend shows that 1-rectangular steel tube concrete column, 2-box steel beam, 3-connecting steel plate, 4-high-strength bolt with reinforcement, 5-fillet weld.

Detailed ways

As shown in Figures 1-3, the node structure of the present invention is that a connecting steel plate 3 is pre-welded on the end face of the box-shaped steel beam 2, and the width of the connecting steel plate 3 should not be greater than the width of the connecting surface of the rectangular steel tube concrete column 1, and The surroundings of the connecting steel plate 3 should protrude beyond the end face of the box-shaped steel beam 2, and a number of holes are processed around the protruding surroundings of the connecting steel plate 3, and the box-shaped steel beam 2 is fixed on the rectangular steel pipe concrete with the high-strength bolts 4 through the holes. The design position of column 1.

In order to ensure the quality of the project, when the steel plates 3 are connected by welding, the fillet welds 5 around them should ensure that the welding is firm.

Claims (1)

1. a rectangular steel-tube concrete column and steel beam with box shape through ribbed node structure, it is characterized in that, it is that end face at steel beam with box shape is welded with junction steel plate in advance, the width of junction steel plate should be not more than the joint face width of rectangular steel-tube concrete column, and junction steel plate around should stretch out beyond the steel beam with box shape end face, junction steel plate stretch out around process porosely, steel beam with box shape is fixed on the design attitude of rectangular steel-tube concrete column with the through ribbed high-strength bolt by the hole.

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