预应力加强型钢混凝土短肢剪力墙的抗震性能  

Seismic behavior of pre-stressed steel reinforced concrete short-pier shear wall

作　　者：蓝文武[1,2] 莫自庆 杨涛[1,2] 谢华[3] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]广西防灾减灾与工程安全重点实验室,广西南宁530004 [3]广西建设职业技术学院,广西南宁530003

出　　处：《广西大学学报（自然科学版）》2016年第4期1016-1023,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(50968003);广西防灾减灾与工程安全重点实验室系统性研究项目(2014ZDX01);广西高等学校科学研究项目(KY2015YB006)

摘　　要：为了研究预应力对型钢混凝土短肢剪力墙抗震性能的影响,制作了2个1/2比例的型钢混凝土(SRC)短肢剪力墙试件,并对其开展了低周反复加载试验。试验研究表明,预应力型钢混凝土短肢剪力墙的破坏形态为延性较好的弯剪破坏,横向预应力的施加明显提高了墙体的耗能能力;与普通型钢混凝土短肢剪力墙相比,预应力型钢混凝土短肢剪力墙试件的开裂荷载、屈服荷载和极限荷载分别至少提高了15.4%、4.6%和24.5%,延性系数则提高了25.0%。对比可知,对型钢混凝土短肢剪力墙施加横向预应力是改善其抗震性能的一种有效途径。To investigate the influence of pre-stress on the seismic behavior of steel reinforced concrete（ SRC） short-pier shear walls,two SRC short-pier shear walls of 1 /2 scale were made and tested under low cyclic reversed loading. Experimental results showed that the failure pattern of the prestressed SRC short-pier shear walls was bending-shear failure with good ductility,and lateral prestress apparently improved the energy dissipation capacity of the walls. Comparing with non-prestressed SRC short-pier shear wall,the cracking load,the yielding load,as well as the ultimate load of the laterally pre-stressed SRC short-pier shear wall increased by at least 15. 4%,4. 6% and24. 5%,respectively,and the ductility factors increased by 25. 0%. It indicated that applying lateral pre-stress is an effective way to improve the seismic behavior of SRC short-pier shear wall.

关 键 词：型钢混凝土(SRC) 短肢剪力墙 预应力 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程] TU317.1