压型钢板组合楼板受拉薄膜效应研究  

STUDY ON TENSILE MEMBRANE ACTION OF PROFILED STEEL SHEET-CONCRETE COMPOSITE SLAB

作　　者：张号浩 潘睿 ZHANG Hao-hao;PAN Rui(Urban Construction Office,Fuyong Sub-District Office of Bao'an District,518103,Shenzhen,China;Municipal Construction Engineering Affairs Center,Fuyong Sub-District Office of Bao'an District,518103,Shenzhen,China;School of Civil Engineering,Southeast University,211189,Nanjing,China)

机构地区：[1]深圳市宝安区福永街道城市建设办公室,深圳518103 [2]深圳市宝安区福永街道市政建设工程事务中心,深圳518103 [3]东南大学土木工程学院,南京211189

出　　处：《建筑技术》2020年第8期976-980,共5页Architecture Technology

摘　　要：压型钢板组合楼板作为钢框架结构的主要组成部件,在倒塌荷载作用下其受力特点不同于小变形下楼板的弹性受力阶段,将呈现出多种抗力机制的交替转变,最终楼板拉膜效应影响将会占据主导作用,显著提高组合结构的抗连续倒塌承载力。利用有限元软件ABAQUS对组合楼板进行了抗连续倒塌分析,研究了其倒塌破坏特征及其抗力机制转变过程。通过改变组合楼板两端的边界约束条件,研究楼板在大变形阶段的“拉膜效应”,提出大变形阶段压型钢板组合楼板“拉膜效应”计算公式,与有限元分析结果进行了对比,验证了计算公式的准确性。As the main component of the steel frame structure,the mechanical characteristics of the steel sheet-concrete composite slab are different from the elastic stage of the small deformation floor under the collapsed load,which shows the alternation of the multiple resistance mechanism.The tensioned membrane effect of the slab plays a leading role,significantly improve the anti-continuous collapse bearing capacity of the composite structure.In this paper,the finite element software ABAQUS is used to analyze the continuous collapse of the composite slab,and the transformation process of its collapse characteristic and its resistance mechanism are studied.By changing the constraint conditions of the composite slab,the tension membrane action of the composite slab on the stage of large deformation is studied,and calculating formulas are put forward and confirmed by the data of the finite element analysis.

关 键 词：压型钢板组合楼板 拉膜效应 有限元模拟 

分 类 号：TU71[建筑科学—建筑技术科学]