Experimental and Numerical Research on Hysteretic Behaviors of Tubular Reinforced Concrete Columns
The behavior of tubular reinforced concrete columns (TRCC) under cyclic loading is experimentally and numerically investigated. Firstly, four specimens 1/8 of the prototype column are fabricated and tested. In this paper, the hysteretic loops are analyzed just for two specimens, namely tube 1 and tube 3. Then the skeleton curves and hysteretic loops of TRCC are simulated by FEM programming ABAQUS. With suitable selection of the constitutive models for concrete and their parameters, the FEM models can capture the main features of TRCC subjected to monotonic and cyclic loading. Finally, based on the numerical results, the influence of axial compression ratio on the ultimate load is studied. It is confirmed that increasing axial compression ratio is adverse to the seismic performance of TRCC. Both the experimental and numerical results show that TRCC exhibit a moderate ability of energy dissipation.
reinforced concrete tubular column hysteretic behavior loops cyclic loading
Yazhou Xu
Ph. D candidate, Department of Building Engineering, Tongji University, Shanghai, China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）