Run-through steel plate type square steel tube concrete column and axle i-beam node

Abstract

The invention relates to a square tube concrete column and an I-shaped steel beam joint of threading steel plate type in the technology field of construction engineering, and comprises the square tube concrete column, the I-shaped steel beam joint and the threading steel plate. The threading steel plate threads through the wallboard of the square tube concrete column wall plate. The threading steel plate is arranged in a vertical placement manner in the square tube concrete column, in parallel to and with the same height of the web plate of the I-shaped steel beam. A part of the threading steel plate edge protruding from the square tube concrete column is parallel and level with the I-shaped steel beam flange. The invention enhances the total bearing capacity of shearing resistance and bending resistance, and guarantees the joint work of the square tube concrete column and the I-shaped steel beam joint.

Description

technical field [0001] The invention relates to a steel and concrete composite structure in the technical field of construction engineering, in particular to a joint between a steel plate type square steel tube concrete column and an I-shaped steel beam. Background technique [0002] The steel pipe concrete structure is a new type of structural system, which fully utilizes the strengths of steel pipe and concrete. It has the advantages of high bearing capacity, good plasticity and toughness, and convenient construction. It is widely used in single-story and multi-story industrial plants. Columns, equipment frame columns, high-rise buildings and bridges and other structures. Especially in recent years, with the promotion and application of residential steel structures, the frame structure system formed by steel pipe concrete columns and steel beams has been gradually applied and developed in engineering practice, and has achieved good economic and social benefits. [0003] A...

AI Technical Summary

Problems solved by technology

Because when the side length is small, it is not only difficult to weld, but also hinders the pouring of concrete in the pipe

In addition, the beam flange and the inner partition are applied with penetration welds on both sides of the same column wall, and the steel has undergone two thermal processes, resulting in large welding residual stress, which makes the steel at the joints prone to delamination or brittle failure

[0005] (2) Affect the appearance and use of buildings

The structure of the joints of the cast-in-place floor beams and slabs often conflicts with the appearance and use of the building, and makes the layout of the floor beams and slabs inflexible, such as the external diaphragm joints. This kind of joints has simple construction, clear force transmission, and is not affected by The limit of the side length of the steel pipe, but a sufficiently large horizontal ring plate is required to ensure the strength of the joint, and the amount of steel used is larger than that of the inner diaphragm joint

And when applied to corner columns, the horizontal ring plate not only hinders the installation of wall panels, but also causes the reinforcing ring to protrude from the building facade, causing convex corners at the indoor and outdoor nodes, which affects the look and feel, which needs to be solved by decoration or ceiling

[0006] (3) The mechanical properties of joints and the simplicity and economy of construction cannot be both

In practical applications, some types of joints have better mechanical properties, and the overall stiffness of the joints is also high, but the amount of materials used is large and the construction is complicated

[0007] (4) Inflexibility of node applications

The disadvantage of this joint is that: since the partition runs through the wall of the square steel pipe concrete column, it is bound to cause the square steel pipe concrete column to be cut off at the joint when welding the inner partition, and then welded with the partition in sections, resulting in an increase in welding workload; in addition The existence of the inner partition makes it difficult to pour concrete at the joint, and the quality of concrete pouring in the joint area cannot be guaranteed

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