构造柱对自嵌固生土砖墙抗震性能影响的试验研究  

Experimental research on the effect of constructional columns on seismic performance of interlocking compressed earth block wall

作　　者：王毅红[1] 王天涯 赵一迪 张俊旗 田桥罗 WANG Yihong;WANG Tianya;ZHAO Yidi;ZHANG Junqi;TIAN Qiaoluo(School of Civil Engineering,Chang′an University,Xi′an 710061,China)

机构地区：[1]长安大学建筑工程学院,西安710061

出　　处：《建筑结构》2021年第6期86-91,共6页Building Structure

基　　金：国家自然科学基金(51478043);陕西省重点研发计划(2017SF-376)。

摘　　要：为研究一种不使用砂浆砌筑而是通过块材间机械咬合作用连接的自嵌固生土砖墙的抗震性能,设计制作了两片带构造柱与两片无构造柱的自嵌固生土砖墙试件,并对其进行低周反复荷载试验。分析了试件的破环特征、极限承载力、滞回曲线和骨架曲线等力学性能。结果表明:构造柱可以显著改善自嵌固生土砖墙的抗震性能,表现在墙体开裂荷载、极限承载力、变形能力、耗能能力和整体性的提高。基于试验结果和分析,结合现行《砌体结构设计规范》(GB 50003—2010)中的砌块墙体抗剪承载力计算方法,提出自嵌固生土砖墙的抗剪承载力计算公式,该公式的抗剪承载力计算值与试验值吻合较好。In order to study the seismic performance of interlocking compressed earth block walls without mortar masonry connected by mechanical biting between blocks,two specimens of interlocking compressed earth block walls with constructional columns and two specimens of interlocking compressed earth block walls without constructional columns were designed and fabricated,and the low-cycle repeated load tests were conducted.The failure characteristics,ultimate bearing capacity,hysteresis curve and skeleton curve of the specimens were analyzed.The results show that the seismic performance of the walls can be significantly improved by the constructional column,which manifests in the improvement of cracking load,ultimate bearing capacity,deformation capacity,energy dissipation capacity and integrity of the wall.Based on the test results and analysis,combined with the calculation method of the shear capacity of the block wall in the current Masonry structural design code(GB 50003—2010),a formula for calculating the shear capacity of the interlocking compressed earth block wall was proposed.The calculated value of the shear capacity of the formula is in good agreement with the experimental value.

关 键 词：自嵌固生土砖墙 机械咬合作用 构造柱 低周反复荷载试验 抗震性能 抗剪承载力 

分 类 号：TU361[建筑科学—结构工程]