带构造柱和圈梁的多层砌体结构在竖向荷载差下的力学性能  

Mechanical Behavior of Multistory Masonry Structure with Structure Column and Ring Beam Under the Different Vertical Compression

作　　者：陈大川[1] 唐利飞[1,2] 张成强[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]长沙市建筑工程安全监察站,湖南长沙410016

出　　处：《四川大学学报（工程科学版）》2011年第4期39-46,共8页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(50778067)

摘　　要：为研究带构造柱和圈梁的多层砌体结构在竖向差异荷载作用下的力学性能,对1个按1/4缩尺比例建造的6层试验墙体模型进行试验和非线性有限元分析,获得了模型墙体在竖向差异荷载作用下整体强度和变形的试验参数,以及墙体顶部的裂缝反应,并将模拟结果与试验结果进行了对比,结果比较吻合。同时,研究了均匀竖向差异荷载作用下不同因素如结构高度、构造柱间距、砌体弹性模量及抗剪强度等对多层砌体结构整体强度和变形的影响,提出了该种荷载作用下带构造柱墙体剪应力的计算公式,给出了竖向阻力系数工程推荐值。In order to investigate the mechanical behavior of multistory masonry structure with structure columns and ring beams under the different vertical load,1∶4 reduced-scale model of six-storey masonry was tested,and the test parameters and fracture shape of the model under different vertical compression were obtained.The nonlinear finite element analysis results showed good agreement with the experimental results.The effects of structural height,structural column＇s space,elasticity modulus and shear strength on the strength and deformation of multi-storey masonry were studied with the nonlinear finite element method,and the formulas of stress of composite wall with structure columns under the different vertical load and the recommended value of vertical drag coefficient were proposed.

关 键 词：砌体结构 裂缝 竖向荷载差 模型试验 有限元分析 

分 类 号：TU362[建筑科学—结构工程] TU317.1