Self-resetting steel frame connecting joint capable of being quickly assembled

Abstract

The invention discloses a self-resetting steel frame connecting joint capable of being quickly assembled, and relates to the field of constructional engineering. The self-resetting steel frame connecting joint comprises an upper column, a middle column and a lower column which are fixedly connected, wherein two steel beams which horizontally extend are fixedly connected to the middle column; the two steel beams are symmetrically arranged along the middle column; and self-resetting supports are further supported between the lower column and the steel beams. According to the self-resetting steel frame connecting joint disclosed by the invention, a force transmission path is direct and reliable, construction and repeated utilization are convenient, the integral lateral resistance, the torsion resistance and the capacity of bearing vertical load action of the structure are obviously improved, the connection of the joint is strengthened, the energy dissipation capacity of the joint is improved, a plurality of fortifications are met, and the anti-seismic design requirements of strong joints and weak rod pieces are met.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a fast-assembled self-resetting steel frame connection node. Background technique [0002] The prefabricated steel structure building has "four sections and one environmental protection, light weight, easy factory production and quick assembly on site", which meets the requirements of construction industrialization vigorously advocated by the state and has good promotion potential. The technical difficulties of prefabricated steel frame structures mainly focus on the beam-column joints, while the existing beam-column joints mainly adopt all-welded connections, bolt-welded connections, and all-bolt connections. Not only the welding stiffness is relatively large, but also the operation Complex, and the welding quality is not easy to guarantee. Judging from the existing earthquake damage, the damage of bolted and welded joints of steel structures is more serious. In the Nort...

AI Technical Summary

Problems solved by technology

In this prior art, the wall frame columns are vertically continuous, and double-angle steel is used to strengthen the floor, which improves the bearing capacity and ductility of the joints to a certain extent, but when it is used in practice, the construction requirements for welding are relatively high , there are certain technical defects, and there are many welded parts at the joint joints, which is not conducive to the ductility development and energy consumption of the components, but also due to the uneven shrinkage during cooling, there are residual stresses in the components, which may make the components enter plasticity in advance, and at the same time Due to the uneven expansion and contraction, the components produce residual deformation, and the popularization and application are limited

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