现浇混凝土空心楼板的计算方法研究及应用  

Calculation Method Research and Application of Situ Concrete Hollow Floor

作　　者：张荣兰[1] 

机构地区：[1]盐城工学院土木工程学院,江苏盐城224051

出　　处：《科技通报》2016年第5期116-119,123,共5页Bulletin of Science and Technology

摘　　要：采用有限元软件ANSYS分析几种不同规格的空心板,说明了现浇混凝土空心板是正交各向异性(等效刚度)板。基于分析各向同性薄板,推导了等效刚度板挠曲微分方程。怎样计算四边支承的圆管式空心板?文中的一种方法为求解方程中微分方程中各项参数,再根据其边界条件求解跨中的挠度以及各特殊点的应力;文中另一种方法为求出正交各向异性(等效刚度)板单元的刚度矩阵的各项参数,运用有限元法对此板进行分析。并举例说明。This article USES the finite element software ANSYS analysis several kinds of differentspecifications of the hollow plate, illustrates the cast-in-situ concrete hollow slab is orthotropic plate（equivalent stiffness）. Based on the analysis of isotropic thin plate, the equivalent stiffness platedeflection differential equation was deduced. How calculate the circular tubular hollow slab ofquadrilateral bearing？ In this paper, a method is for solving the various parameters in the equation ofdifferential equation, according to the boundary conditions to solve across the deflection and the stress ofthe special points. Another method is to calculate the orthogonal anisotropic （equivalent stiffness） plateunit stiffness matrix of each parameter, using the finite element method （FEM） for analysis of this plate.And illustrate it.

关 键 词：整体等效抗弯刚度 有限元分析 空心板 挠度 

分 类 号：TU225[建筑科学—建筑设计及理论]