建筑结构学报2017，Vol.38Issue(6)：70-77,8.DOI:10.14006/j.jzjgxb.2017.06.008
预应力高强钢绞线网-聚合物砂浆加固剪力墙抗震性能试验研究
Experimental investigation on seismic behavior of shear wall retrofitted with pre-stressed steel wire mesh and polymer mortar
摘要
Abstract
Based on the low-cycle loading tests of 9 reinforced concrete (RC) shear walls strengthened with prestressed high strength steel wire mesh-polymer mortar (PSWM-PM) and one contrast shear wall,the seismic strengthening effects of main test parameters,including axial compressive ratio,single-sided or double-sided reinforcement,prestressing level of steel wire were studied.The test results show that the cracking load,yield load,ultimate load of shear wall specimens are increased by 83％,100％,and 9.5％ after strengthened with PSWM-PM.Hysteretic performance of double-sided reinforcement is better than that of the single-sided reinforcement.Through single-sided reinforcement,the maximum increase of the ductility of specimen is 27.7％ and the maximum increase in energy dissipation capacity is 66.07％;Through double-sided reinforcement,the maximum increase of the ductility of specimen is 72.8％ and the maximum increase in energy dissipation capacity is 96.60％.In addition,the stiffness of the strengthened specimens is significantly increased and the stiffness degradation mitigated.The energy dissipation capacity and stiffness degradation do not change with increasing of prestressing level,but it has an obvious influence on the ductility.关键词
剪力墙/加固/钢绞线网/聚合物砂浆/低周往复加载试验/抗震性能Key words
shear wall/strengthening/steel wire mesh/polymer mortar/low-cyclic loading test/seismic performance分类
建筑与水利引用本文复制引用
廖维张,张春磊,贾天宇,王红炜..预应力高强钢绞线网-聚合物砂浆加固剪力墙抗震性能试验研究[J].建筑结构学报,2017,38(6):70-77,8.基金项目
国家重点研发计划专项(2016YFC0701100),国家自然科学基金项目(51378046),北京市属高等学校人才强教项目(067135300100). （2016YFC0701100）
