预制带肋底板混凝土双向叠合板极限承载力  

Ultimate Bearing Capacity of Concrete Two-way Composite Slabs with Precast Concrete Ribbed Panels

作　　者：吴方伯[1] 黄海林[1] 陈伟[1] 周绪红[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《土木建筑与环境工程》2011年第5期34-40,共7页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助项目(50978090);湖南省研究生科研创新项目(CX2010B143);湖南大学研究生创新基金-湖南大学博士学位论文选题资助计划项目

摘　　要：为适应复杂荷载条件及不同的楼盖跨度,对预制带肋底板的结构体系进行了拓展。基于塑性绞线理论,推导了均布荷载作用下常见边界条件预制带肋底板混凝土双向叠合板(双向叠合板)的极限承载力与塑性绞线形成位置,提出了双向叠合板正交2个方向单位宽度极限弯矩的简化计算公式,进行了均布荷载作用下四边简支与四边固支双向叠合板2个算例的塑性极限分析,结果表明:基于该文给出的极限承载力公式的计算结果与试验结果吻合较好。New types of precast concrete ribbed panels are developed in order to adapt to the loading conditions and different floor spans. Based on the yield line theory, equations for the bearing capacity and yield patterns of two-way composite slabs of different edge conditions an uniformly distributed loading are developed, and the simplified formulas for the ultimate moment width are proposed. The plastic limit analyses of two examples on the simple support and the fixed are conducted, and the calculation results show good agreement with the experimental data.

关 键 词：组合结构 预制混凝土 双向叠合板 预制带肋底板 极限承载力 塑性绞线法 

分 类 号：TU313.3[建筑科学—结构工程]