收稿日期: 2014-05-14
修回日期: 2014-07-28
网络出版日期: 2014-11-17
基金资助
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)
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)
张波 方林 金国芳 李凯文 王志亮 . 实腹式型钢混凝土十字形异形柱的抗震性能[J]. 华南理工大学学报(自然科学版), 2014 , 42(11) : 121 -128 . DOI: 10.3969/j.issn.1000-565X.2014.11.018
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.
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