一种新型装配式组合T形柱抗震性能试验研究  

Experimental study on seismic performance of a new type of prefabricated composite T-shape column

作　　者：张喜德[1,2,3] 黎力设 陈文鹏 杨涛 ZHANG Xi-de;LI Li-she;CHEN Wen-peng;YANG Tao(School of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Nanning 530004, China;Key Laboratory of Disaster Prevention and Structural Safety of Guangxi, Nanning 530004, China)

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]工程防灾与结构安全教育部重点实验室,广西南宁530004 [3]广西工程防灾与结构安全重点实验室,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2021年第5期1148-1156,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51568005);广西自然科学基金资助项目(2018GXNSFAA138204)。

摘　　要：针对目前很多异形柱结构形式不易于发展成为装配式建筑结构的问题,提出一种采用高强螺栓连接的新型装配式组合异形柱,并以轴压比及含钢率为影响参数对4个装配式组合T形柱试件进行了低周反复荷载试验。结果表明:试验过程中试件装配连接部位工作正常,破坏发生在柱身试验段,所采用的高强螺栓装配连接方式切实可行,可达到等同现浇的效果;随着轴压比的增大,试件的开裂荷载及屈服荷载增大,耗能能力增强,但延性及变形能力变差,刚度退化加快;随着含钢率的增加,试件的抗震承载力、延性、耗能性能及初始刚度均有所提高,后期刚度退化速率变化不大。In view of the current problem that many special-shaped column structures are not easy to develop into prefabricated structures,a new type of prefabricated composite special-shaped column connected by high-strength bolts was proposed.Low cyclic reversed loading test was carried out on four prefabricated T-shaped columns,taking into consideration the influence of axial compression ratio and steel ratio.The experimental results reveal that the connection parts of the specimens work normally during the test,and the damage occur in the test section of the column,which indicate that the high-strength bolt connection method was reliable and can achieve the equivalent effect as cast-in-place.As the axial compression ratio increases,the cracking load and yield load of the specimens increase,and the energy dissipation capacity is enhanced,but the ductility and deformability are worsened,and the stiffness degradation is accelerated.With the increase of the steel ratio,the seismic bearing capacity,ductility,energy dissipation performance and initial stiffness of the specimens are all improved,while the stiffness degradation undergoes little change.

关 键 词：装配式 T形柱 组合结构 抗震性能 轴压比 含钢率 

分 类 号：TU398[建筑科学—结构工程]