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中南大学学报(英文版)

Journal of Central South University

Vol. 25    No. 7    July 2018

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Numerical and experimental study on seismic behavior of concrete-filled T-section steel tubular columns and steel beam planar frames
ZHANG Ji-cheng(张继承)1, HUANG Yong-shui(黄泳水)1, CHEN Yu(陈誉)1, 2,DU Guo-feng(杜国锋)1, ZHOU Ling-jiao(周灵姣)1

1. School of Urban Construction, Yangtze University, Jingzhou 434023, China;
2. College of Civil Engineering, Huaqiao University, Xiamen 361021, China

Abstract:The seismic behavior of planar frames with concrete-filled T-section columns to steel beam was experimentally and numerically studied. A finite element analysis (FEA) model was developed to investigate the engineering properties of the planar frames. Two 1:2.5 reduced-scale specimens of T-section concrete-filled steel tubular column and steel beam of single-story and single-bay plane frames were designed and fabricated based on the design principles of strong-column, weak-beam and stronger-joint. One three-dimensional entity model of the investigated frame structure was built using a large-scale nonlinear finite-element analysis software ABAQUS. Experimental results show that the axial compression ratio has no effect on the failure mode of the structure, while with the increase of axial compression ratio and the dissipated energy ability increasing, the structural ductility decreased. The results from both experiments and simulations agree with each other, which verifies the validity and accuracy of the developed finite element model. Furthermore, the developed finite element model helps to reflect the detailed stress status of the investigated frame at different time and different positions.

 

Key words: planar frames; T-section steel tubular columns; seismic behavior; mechanical properties; finite element analysis

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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