摘要
本文根据空间厚板有限元理论,研制开发了适合于地下结构中具有明显空间效应的结构分析线弹性有限元程序,并附有实际工程结构空间分析算例。将分析结果与以往按平面假定的近似计算方法得到的结果加以比较,表明:(1)地下结构的空问效应不容忽视;(2)以往在结构设计中,近似按平面假定进行分析计算的结果与实际的结构受力状况差别较大,而且并非偏于安全。本文所提出的数值计算方法比较符合实际,其程序便于工程单位使用。
Based on the theory of FEM for spacial thick plate, a Computer program for linear-elastic finite elements, appropriate to spacial effect analysis of underground structure is developed. The results obtained by this method are compared with those obtained by plane hypothesis of the structure. It shows that (1) the spacial effect of underground structure should not be ignored, (2) the results calculated by plane hypothesis method in formerly structure design are quite different from that for loading state of real structure and can't be considered as on the safe side. The numerical method described in this paper gives the results close to that in practice and is convenient for builders' use.
出处
《地下空间》
CSCD
1992年第4期273-282,共10页
Underground Space
关键词
空间效应
计算机
地下结构
FEM for thick plate
spacial effect
computer program
