钢-混凝土深肋组合扁梁楼盖空间作用研究  

Membrane Behavior of Steel-Concrete Composite Slim Floor with Deep Deck

作　　者：杨璐[1,2] 王元清[1,2] 石永久[1,2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]清华大学结构工程与振动教育部重点实验室,北京100084

出　　处：《华中科技大学学报（城市科学版）》2009年第1期70-74,共5页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金(50578083)

摘　　要：本文建立钢-混凝土组合扁梁整体楼盖三维实体有限元模型,对组合扁梁楼盖在水平荷载作用下的承载性能、变形特点进行了分析;采用刚度比参数和相对挠度比等方法对组合扁梁楼盖的空间作用进行了分析。研究表明,钢-混凝土组合扁梁楼盖具有较大的水平刚度,满足水平刚度无限大的假定。本文最后提出了考虑混凝土肋及其布置方向的组合扁梁楼盖刚度比的计算方法。In this paper, the membrane behavior of steel-concrete composite slim floor is investigated. FE models of composite slim floors with different arrangements of concrete ribs and without ribs are established by the software package ANSYS. The deformation features and effects of concrete ribs are analyzed. In addition, both relative deflection ratio method and stiffness ratio method are adopted to evaluate the membrane behavior of composite slim floor. The results show that the composite slim floor has a quite good membrane behavior and an estimation method is proposed to account for the contribution of concrete ribs with different arrangements.

关 键 词：组合扁梁楼盖 空间作用 相对挠度比 刚度比 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]