混凝土夹芯板滑移与变形的理论计算及分析  

THEORETICAL CALCULATION AND ANALYSIS OF SLIP AND DEFORMATION FOR CONCRETE SANDWICH PANEL

作　　者：李砚波[1] 章少华[1] 夏宝阳[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《工程力学》2008年第1期173-178,185,共7页Engineering Mechanics

基　　金：天津市自然科学基金项目(06YFJMJC05800)

摘　　要：对均布荷载作用下简支混凝土夹芯板的滑移及其对混凝土夹芯板变形挠度影响的理论计算进行了研究和分析,推导出了简支混凝土夹芯板的滑移和变形挠度的理论计算公式,该公式既能描述混凝土夹芯板的滑移规律,也能体现滑移对混凝土夹芯板变形挠度的影响。同时推导出了开裂弯矩的计算公式,确定了滑移和变形挠度计算公式的适用范围。通过与试验和有限元分析结果的比较表明:理论公式计算的结果与试验和有限元分析结果较吻合,可以在实际工程中用来计算混凝土夹芯板的滑移和弯曲变形。This paper is concerned with the slip and deformation of concrete sandwich panel under uniformly distributed loads. The effect of slip on the deformation of concrete sandwich panel is studied, and the analytical expressions for slip and deformation of concrete sandwich panel is obtained. These formulae can describe the slip distribution and account for its effect on deformation. In order to restrict the bound of formula, the formula of crack moment is obtained. The results obtained by theoretical calculation are compared with experimental results and the results of finite element method. It is shown that the results obtained by theoretical calculation are in accord with that by experiments and finite element method. It can be used to calculate the slip and deformation of concrete sandwich panel in practical engineering.

关 键 词：混凝土夹芯板 滑移 变形挠度 开裂弯矩 有限元 

分 类 号：TU375[建筑科学—结构工程] TU318