砌体墙的破坏准则及剪压复合作用下抗剪承载力  

FAILURE CRITERION FOR MASONRY UNDER COMBINED LOADS AND SHEAR STRENGTH OF MASONRY WALL

作　　者：方亮[1,2] 梁建国[3] 

机构地区：[1]湖南农业大学工学院,长沙410128 [2]湖南大学土木工程学院,长沙410012 [3]长沙理工大学土木建筑学院,长沙410114

出　　处：《工程力学》2012年第10期263-267,274,共6页Engineering Mechanics

基　　金：湖南农业大学青年基金项目(08QN09)

摘　　要：砌体墙在竖向压力和平面内水平剪力复合作用下的破坏准则是确定砌体抗剪承载力的重要依据。通过对比分析,推导出基于最大主应力理论、剪摩理论、Mohr理论和变形能理论的适合于砌体在剪压复合作用下的破坏准则。考虑到微元体与宏观墙模型的差别,建立了相应于各种破坏准则的砌体抗剪承载力计算公式。并将公式的计算结果与收集的111片普通粘土砖砌体墙片的试验结果进行了对比分析,得到了常用多层砌体房屋墙的抗剪承载力计算公式。The failure criteria for masonry are important to define the shear strength of masonry wall under the action of vertical compression load and horizontal shear load.Through comparative analysis,the failure criteria suitable for masonry under shear-compression load are proposed,which are based on the maximum principal stress theory,shear-friction theory,Mohr theory and deformation energy theory.The shear strength formulas of masonry wall are derived according to the failure criteria for masonry,and the differences between the micro-unit and macro-scale Wall-modelling are considered.At last,the comparisons between theoretical values which are calculated by these formulas and test values which are observed in the test of 111 pieces fired common brick walls are performed.And the shear strength formulas for multi-story masonry walls are provided.

关 键 词：砌体墙 破坏准则 剪压复合作用 普通粘土砖 抗剪承载力 

分 类 号：TU362[建筑科学—结构工程]