A three-side plate joint for eccentric beam-column connection and assembly method

Abstract

The invention discloses a three-side plate joint for eccentric beam-column connection and an assembly method. The three-side plate joint comprises a first steel plate, a second steel plate and third steel plates, wherein the first steel plate and the second steel plate are arranged on the two sides of a multi-cavity steel pipe concrete combination column, and the third steel plates are arranged on the side walls of the multi-cavity steel pipe concrete combination column; the third steel plates are parallel to the first steel plate and located between the first steel plate and the second steel plate; the upper flange and the lower flange of a steel beam are both provided with lug plates; the lug plates are connected with the first steel plate and the third steel plates; and pieces of connection angle steel are symmetrically arranged on the two sides of a web of the steel beam. According to the three-side plate joint, the assembly degree is high, the multi-cavity steel pipe concrete combination column, the steel plates, the steel beam, the lug plates, the third steel plates and the connection angle steel all can be completed through prefabrication, the welding workload for installation is decreased, and field installation only needs positioning assembly; the mode of the joint is simple, the assembly degree is high, and the joint is convenient and quick to install; and traditional fusion-through welding is prevented from being adopted during field installation, so that steel at the joint is prone to being layered or subjected to brittle failure.

Description

technical field [0001] The invention relates to a multi-cavity steel pipe concrete composite column structure system in the technical field of construction engineering, in particular to a three-side plate node and an assembly method for eccentric beam-column connection. Background technique [0002] The multi-cavity steel pipe concrete composite column composite structure system is a new type of steel pipe concrete composite column structure system that solves the problem of protruding column feet in residential systems. It has the advantages of high bearing capacity, good plasticity and toughness, and convenient construction. [0003] At present, my country's "Technical Regulations for Rectangular Concrete-filled Steel Tube Structures" (GECS159: 2004) provides steel-beam joints for concrete-filled steel tube composite columns, which mainly include inner diaphragm type and outer ring plate type. But so far, there are the following deficiencies in the connection between the ...

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 concrete pouring in the pipe. In addition, the beam flange and the inner partition plate penetrate the weld on both sides of the same column wall, and the steel produces a large welding residual stress, which makes the steel at the joint easy to produce delamination or brittle failure

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

And when applied to corner columns, the horizontal ring plate not only hinders the installation of wall panels, but also causes the reinforcement ring to protrude from the building facade, causing convex corners at the indoor and outdoor joints, 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 good, but the amount of materials is large and the construction is complicated

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