Journal of South China University of Technology(Natural Science) >
Seismic Behaviors of Solid- Web Steel- Reinforced- Concrete Cross- Shaped Columns
Received date: 2014-05-14
Revised date: 2014-07-28
Online published: 2014-11-17
Supported by
国家自然科学基金资助项目(61179062);江苏省第七批 “六大人才高峰” 项目(JY-060)
In order to investigate the seismic behaviors of solid- web steel- reinforced- concrete (SSRC) cross- shaped columns,four column specimens with various axial compression ratios,steel ratios and loading directions were test- ed by low- cycle reversed loading experiments,and the crack,deformation,failure characteristics of these columns were recorded.Then,the load- displacement hysteretic curves and skeleton curves of the four columns were ob- tained,and their mechanical properties,namely,stiffness and strength degradation,displacement ductility and energy dissipation capacity,were analyzed.Finally,according to the experimental results,the effects of axial com- pression ratios,steel ratios and loading directions on the seismic behaviors of SSRC cross- shaped columns were dis- cussed.The results indicate that (1) the failure mode of the specimens with large shear span ratio is a bending fai- lure; and (2) SSRC cross- shaped columns have favorable ductility,plastic deformation capacity and energy dissi- pation capacity.In addition,as compared with lattice- style steel reinforced concrete (LSRC) cross- shaped co- lumns,SSRC cross- shaped columns show better seismic behavior.
Zhang Bo Fang Lin Jin Guo- fang Li Kai- wen Wang Zhi- liang . Seismic Behaviors of Solid- Web Steel- Reinforced- Concrete Cross- Shaped Columns[J]. Journal of South China University of Technology(Natural Science), 2014 , 42(11) : 121 -128 . DOI: 10.3969/j.issn.1000-565X.2014.11.018
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