摘要
开展了3榀足尺空心砌块填充墙框架的低周往复加载试验.主要研究填充墙的不同拉结构造形式对填充墙框架抗震性能的影响.填充墙钢筋拉结构造包括常规拉结、通长拉结和配筋砂浆带拉结等3种形式.在试验研究基础上分析了试件的破坏形态、滞回特性、骨架曲线和耗能能力等特征.研究结果表明,3种拉结构造的填充墙均经历了开裂、裂缝贯通和砌块剥落和塌落等破坏阶段.与常规拉结填充墙相比,采用钢筋通长拉结或配筋砂浆带拉结可延缓填充墙开裂和破碎,在大位移角下表现出较好的抗倒塌能力和耗能能力.在1/25位移角时,钢筋通长拉结的填充墙砌块剥落面积最小,体现了更好的拉结效果.
Cyclic reversed loading tests were conducted on three full-scale infilled reinforced concrete (RC)frames with concrete hollow blocks.The main purpose was to investigate the effect of binding method on the seismic behavior of the infilled frame structures.Three types of binding methods were involved,including local binding method,through-bar binding method,and reinforced-mortar binding method.Based on the test results,the damage characteristics, hysteretic behavior,skeleton curves,and energy dissipation capacity of the specimens were analyzed.It was indicated from the experiments that,all the specimens experienced a series of failing stages,including cracking of joints,crack propagation,cracking of blocks,and local collapse of the infilled wall.Compared to the local binding method,the through-bar binding method and reinforced-mortar binding method were able to delay or even avoid spalling of the wan blocks,and showed goodresistance to wall collapseand energy dissipation capacity at large drift ratios.Spalling of wall blocks within limited area was observed for the specimen using the through-bar binding method at a drift ratio of 1/25,indicating a favorable binding effect.
作者
林超
郭子雄
黄群贤
叶勇
LIN Chao;GUO Zixiong;HUANG Qunxian;YE Yong(College of Civil Engineering,HuaqiaoUniversity,Xiamen 361021,China;Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province,Xiamen 361021,China)
出处
《应用基础与工程科学学报》
EI
CSCD
北大核心
2018年第6期1271-1280,共10页
Journal of Basic Science and Engineering
基金
国家自然科学基金项目(51578254)
福建省科技计划重大项目(2015Y4007)
