芯柱式构造柱约束墙体抗震变形能力试验研究  

Pseudo-Static Test on Seismic Deformation Capacity of Masonry Wall Constrained by Core-Tie-Columns

作　　者：李英民[1,2] 郑妮娜[1,2] 夏洪流[1,2] 葛玉琦[1,2] 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045

出　　处：《土木建筑与环境工程》2010年第4期1-6,共6页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助项目(50908242);国家科技支撑计划(2009BAJ28B01-2);重庆市城乡建设委员会科技项目(城科字2009第(3)号)

摘　　要：芯柱式构造柱可解决现浇构造柱支模难、造价高、工期长等问题。通过11个试件(6个芯柱式构造柱约束墙体、2个现浇构造柱约束墙体、3个素墙体)的低周反复加载试验,对比分析了不同约束条件下墙体的骨架曲线特征、位移延性及位移角,探讨了竖向压应力、高宽比及墙体形式对芯柱式构造柱约束墙体变形能力的影响。试验结果表明,芯柱式构造柱的作用与传统现浇构造柱相近,可通过对墙体的约束增强墙体的整体变形能力。A new tie-column such as core-column, named as core-tie-column, for the substitution of cast-inplace tie-column was used to improve seismic performance of mansonry structures. Pseudo-static testes of 11 wall specimens including 6 walls constrained by core-tie-columns, 2 walls constrained by cast-in-place tie-columns, and 3 walls without constraints were carried out to study the seismic deformation capacity of mansonry walls with core-tie-columns. The skeleton load-displacement curves and the normalized skeleton curves, displacement ductility factors, drift angels of the specimens were analyzed and compared. The effects of the level of vertical compress load, aspect ratio and the wall style on the deformation capacity of the wall with core-tie-columns were distinguished. It is shown that the constraints effects of core-tie- columns on masonry wall are effective and the walls with core-tie-columns have good deformation capacity as those with cast-in-place tie-eolumns.

关 键 词：砌体结构 芯柱式构造柱 低周反复加载试验 位移延性 变形能力 

分 类 号：TU365[建筑科学—结构工程]