弹性地基上复杂形状中等厚度筏板基础的分析  

ANALYSIS OF MODERATELY THICK RAFTS IN COMPLEX SHAPES ON ELASTIC FOUNDATION

作　　者：李志飙[1] 唐锦春[2] 孙炳楠[2] 

机构地区：[1]浙江省建筑设计研究院,杭州310006 [2]浙江大学土木系,杭州310027

出　　处：《工程力学》1997年第1期8-16,共9页Engineering Mechanics

摘　　要：本文基于考虑横向剪切变形的 Mindlin 中厚板理论,提出了—种考虑横向剪切变形的三角形板弯曲单元;利用 Winkler 假定,推导出显式表示的土介质的刚度矩阵,按照土与结构共同作用的原理,编制了相应的计算程序。由于三角形板单元形状比较灵活,因而本程序能有效地解决弹性地基上具有复杂形状的中等厚度筏板基础的分析问题.In this paper,a triangular element for plate bending taking into consideration the transverse shear deformation is developed based upon the Mindlin theory for moderately thick plate.The element stiffness matrix of soil medium is derived based on the Winkier sou model. According to the principles of the interaction of soil and structure,a computing program for the analysis of moderately thick rafts in complex shapes on elastic foundation is coded.The numerical examples show that the present method is effective for solving the bending of moder- ately thick rafts on elastic foundation.

关 键 词：中厚筏板 弹性地基 筏板 共同作用 

分 类 号：TU471.2[建筑科学—结构工程]