高宽比对土坯砌体破坏模式的影响  

Study on influence of aspect ratio on adobe masonry

作　　者：单梦阿 刘伟佳 SHAN Meng-e;LIU Weijia(Architectural Engineering Institue,Xinjiang University,Urumqi,Xinjiang 830047,China)

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830047

出　　处：《江苏建筑职业技术学院学报》2017年第3期17-20,共4页Journal Of Jiangsu Vocational Institute of Architectural Technology

基　　金：国家自然科学基金项目:钢丝网水泥砂浆加固土坯墙体纵横墙连接效应试验研究(51468060)

摘　　要：为了研究不同高宽比的土坯墙体的破坏模式,在试验研究与有限元模拟的基础上,得到了不同高宽比下土坯墙体的破坏机理与破坏模式.对比分析了不同高宽比对墙体的承载力、延性、刚度等抗震性能的影响.结果表明:高宽比0.5≤λ≤1.2时,墙体发生合理的剪切型破坏;高宽比1.2≤λ≤1.5时,墙体发生沿水平截面的剪摩破坏.研究结果对于土坯墙体的抗震设计具有一定的参考意义.In order to study the failure modes of adobe walls with different aspect ratios,the fail-ure mechanism and failure modes of adobe walls with different aspect ratios are obtained on the basis of experimental investigations and finite element simulations.The influences of different aspect ratios on the bearing capacity?ductility?stiffness and other seismic performances of the wall are compared and analyzed.The results show that when the ratio of height to width is be-tween 0.5 to 1.2,the shear failure of the wall occurs reasonably.When the aspect ratio is be-tween 1.2 to 1.5,the shear failure of the wall occurs along the horizontal section.The research results have certain reference significance for the seismic design of adobe wall.

关 键 词：土坯墙体 高宽比 有限元分析 破坏模式 

分 类 号：TU311[建筑科学—结构工程]