|Table of Contents|

[1] Pan Jinlong, Mo ChuangXu Li, Chen Junhan,. Seismic behaviors of steel reinforced ECC/RC composite columnsunder low-cyclic loading [J]. Journal of Southeast University (English Edition), 2017, 33 (1): 70-78. [doi:10.3969/j.issn.1003-7985.2017.01.012]

Seismic behaviors of steel reinforced ECC/RC composite columnsunder low-cyclic loading()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2017 1
Research Field:
Civil Engineering
Publishing date:


Seismic behaviors of steel reinforced ECC/RC composite columnsunder low-cyclic loading
Pan Jinlong Mo ChuangXu Li Chen Junhan
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
engineered cementitious composites(ECC) ECC/RC composite columns hysteretic curves ductility energy dissipation parametric analysis
To improve the seismic performance of columns, engineered cementitious composite(ECC)is introduced to partially substitute concrete at the base of the columns to form ECC/reinforced concrete(RC)composite columns. The mechanical behaviors of the ECC/RC composite columns are numerically studied under low-cyclic loading with the finite element analysis software of MSC.MARC. It is found that the ECC/RC composite columns can significantly enhance the load capacity, the ductility and energy dissipation of columns. Then, the effects of the height of the ECC, the axial compression ratio and the longitudinal reinforcement ratio on the seismic behaviors of the composite columns are parametrically studied. The results show that the ECC/RC composite column with a height of the ECC layer of 0.8h(h is the height to the cross-section)can achieve similar seismic performance of a full ECC column. The peak load of the composite column increases significantly while the ductility decreases with the increase of the axial compression ratio. Increasing the longitudinal reinforcement ratio within a certain range can improve the ductility and energy dissipation capacity and almost has no effect on load capacity. The analysis results are instructive and valuable for reference in designing ECC structures.


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Biography: Pan Jinlong(1976—), male, doctor, professor, jinlongp@gmail.com.
Foundation items: The National Natural Science Foundation of China(No.51278118), the Natural Science Foundation of Jiangsu Province(No.BK2012756), the Key Project of Ministry of Education of China(No.113029A), the Third Five-Year Major Scientific and Technological Project of China Metallurgical Group Corporation.
Citation: Pan Jinlong, Mo Chuang, Xu Li, et al. Seismic behaviors of steel reinforced ECC/RC composite columns under low-cyclic loading[J].Journal of Southeast University(English Edition), 2017, 33(1):70-78.DOI:10.3969/j.issn.1003-7985.2017.01.012.
Last Update: 2017-03-20