带环梁的方钢管约束钢骨混凝土柱-钢梁节点滞回性能有限元分析

doi:10.13229/j.cnki.jdxbgxb20171065

Abstract

Abstract: Two kinds of different shapes of steel square tube confined steel reinforced concrete column steel frame ring beam joint were designed. ABAQUS finite element software was used to establish the numerical analysis model of the node. The hysteretic behavior, stress distribution and failure mode of the joints were analyzed. The influences of the outer diameter thickness ratio of steel tube, steel form, joint height, concrete strength and axial compression ratio on the seismic performance of the nodes were also investigated. The results show that the hysteresis curves of this kind of node are full and the energy dissipation is good, the steel distribution and failure mode are in accordance with the requirement of "strong column, weak beam and stronger joint" in seismic design. This study provides theoretical support for the design and research of this kind of nodes.

Key words: structure engineering, steel tube confined steel reinforced concrete columns, hysteretic behavior, ring beam, skeleton curve, stress distribution

CLC Number:

TU398

DAI Yan, NIE Shao-feng, ZHOU Tian-hua. Finite element analysis of hysteretic behavior of square steel tube confined steel reinforced concrete column steel frame ring beam joint[J].Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1426-1435.

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Finite element analysis of hysteretic behavior of square steel tube confined steel reinforced concrete column steel frame ring beam joint

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