A self-resetting steel frame connection node that can be quickly assembled

Abstract

The invention discloses a quick-assembled self-resetting steel frame connection node, which relates to the field of construction engineering and includes fixedly connected upper columns, middle columns and lower columns. The middle column is fixedly connected with two horizontally extending steel beams, and the two The first steel beams are arranged symmetrically along the middle column, and there is also a self-resetting support between the lower column and the steel beams. The invention makes the force transmission path direct and reliable, facilitates construction and repeated utilization, significantly improves the overall structure's ability to resist lateral, torsion, and vertical loads, strengthens the connection at nodes, and improves the energy dissipation capacity of nodes. It meets the multi-channel fortification and meets the seismic design requirements of "strong nodes and weak members".

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a self-resetting steel frame connection node that can be quickly assembled. Background technique [0002] The prefabricated steel structure building has "four sections and one environmental protection, light weight, easy factory production and rapid on-site assembly", which meets the requirements of building industrialization strongly advocated by the state, and has good promotion potential. The technical difficulties of prefabricated steel frame structures are mainly concentrated on the beam-column connection joints, while the existing beam-column joints mainly adopt all-welding, bolt-welding, all-bolt connections, etc., not only the welding stiffness is relatively large, the operation Complex, and the welding quality is not easy to guarantee. Judging from the existing earthquake damage situation, the damage of steel structure bolted and welded hybrid joints is relativel...

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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