A vibration-absorbing device for connecting joints between assembled concrete columns and newly added steel beams

Abstract

A prefabricated concrete column and newly added steel beam joint joint damping device, including a steel pipe column and a steel beam, the steel beam is equipped with a C-shaped plate on the front and rear sides, and the opening sides of the C-shaped plate are all away from the steel pipe column. The other side of the slab is fixedly connected with the steel pipe column. There are two L-shaped slabs on each C-shaped slab. The L-shaped slabs are located on the opposite sides of the two C-shaped slabs. The steel beams are located between the four L-shaped slabs. And they are respectively connected by bolts. There are two layers on the front and rear sides of the steel beam respectively. The two layers on the front side are connected by a scissor bar, and the two layers on the rear side are connected by the same scissor bar. A sleeve with an open end is fixedly installed inside, and the sleeve is arranged obliquely. The structure can enhance the stability in the horizontal dimension, reduce the cracking of the ground or roof caused by the large-scale movement or even damage of the steel beam, and help to further ensure people's property and personal safety.

Description

technical field [0001] The invention belongs to the field of building structural parts, in particular to a shock absorbing device for connecting nodes of an assembled concrete column and a newly added steel beam. Background technique [0002] With the popularization and development of residential steel structures, the connections between concrete-filled steel tube columns and horizontal components such as beams and slabs form an important structural system, which has the characteristics of light weight, convenient construction, and large span, and has extremely good seismic performance. Zhengzhou also has high restorability. However, through the analysis of the joint stress distribution law, it is found that the stress distribution at the joint between the steel beam and the CFST column is relatively concentrated, which can easily lead to the yield strain of the steel beam flange, and even cause a sudden change at the web. Therefore, it is very effective to further strengthe...

AI Technical Summary

Problems solved by technology

However, through the analysis of the joint stress distribution law, it is found that the stress distribution at the joint between the steel beam and the CFST column is relatively concentrated, which can easily lead to the yield strain of the steel beam flange, and even cause a sudden change at the web. Therefore, it is very effective to further strengthen the joint joint. necessary

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