Double-side-plate joint in bolted connection and assembling method

Abstract

The invention provides a double-side-plate joint in bolted connection and an assembling method. The double-side-plate joint comprises a first steel plate and a second steel plate which are arranged on the two sides of a multi-cavity steel pipe concrete combination column and arranged in parallel. Multiple lug plates are arranged on the two sides of an upper flange and the two sides of a lower flange of a steel beam. The lug plates are connected with the first steel plate and the second steel plate. Connecting steel angles are symmetrically arranged on the two sides of a web of the steel beam. The double-side-plate joint is high in assembling degree, the multi-cavity steel pipe concrete combination column, the steel plates, the steel beam, the lug plates and the connecting steel angles can all be prefabricated in a factory, the welding workload of installation is reduced, and only locating assembling is needed for field installation. The joint is simple in manner, high in assembling degree and convenient and quick to install. Due to the fact that traditional fusion-through welding is prevented from being adopted in field installation, the relatively large welding residual stress of steel is likely to be generated through traditional fusion-through welding, and the steel of the position of the joint is likely to be layered or prone to brittle failure. The joint is connected completely through high-strength bolts during field installation, the assembling degree is high, and joint connection is reliable.

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 bolt-connected double-side plate node and an assembly method. 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 steel pipe concrete c...

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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