Nonlinear finite element analysis on seismic behavior of concrete filled square steel tube planar frames
Affiliation of Author(s):
土木工程学院
Journal:
Advanced Materials Research
Key Words:
中文关键字：方钢管混凝土框架；穿心螺栓-端板节点；非线性有限元分析；抗震性能，英文关键字：CFST frame;through bolt-endplate beam-column joint
Abstract:
This paper presents a nonlinear numerical analysis on the seismic behavior of concrete
filled square steel tube (CFST) columns and steel beam planar frame with through bolt-endplate
beam-column connection, by using the finite element analysis modeling with ABAQUS. Parametric
studies were conducted to investigate the influence of axial load ratio and beam-to-column linear stiffness ratio on the seismic behavior of composite frames. The analysis results were in good agreement with the experiment results. The analysis results showed that CFST frame with through bolt-endplate beam-column connection had good seismic behavior. The increase of axial load ratio will degrade the horizontal load bearing capacity and increase the energy dissipation capability. The increase of beam-to-column linear stiffness ratio will increase the horizontal load bearing capacity and degrade the energy dissipation capability.
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