高层建筑结构非线性地震反应分析的竖向空间子结构法

对原竖向空间子结构法进行了改进,使竖向空间子结构的划分更趋简单,便于计算机进行前处理,自动形成结构力学分析的原始数据;子结构内部能处理各种复杂平、立面情况,避免了因子结构划分过细导致的计算工作量的增加;减少了边界节点总数;子结构间无需连接单元,结构分析仅有统一的竖向空间子结构模式,便于计算机编程,本文作者采用FORTRAN语言编制了相应的结构非线性地震反应分析程序,并进行算例分析。分析结果表明,竖向空间子结构法特别适合于多塔联体结构的非线性动力分析。

Vertical direction spatial substructure analysis method of nonlinear seismic responses of tall structure

In this paper,the vertical direction spatial substructure analysis method is improved,so that the division of vertical direction spatial substructures becomes simpler.The primary data of structure mechanical analysis can be formed automatically for preliminary treatment by computer;and complex structure condition can be treated in substructure for avoiding the increase of calculation capacity.The number of boundary nodal point can be reduced,and the connection elements between substructures are not needed,so that the computer program can be written expediently.The nonlinear analysis program in FORTRAN of structure seismic responses is written,and calculating case is analysis in this paper.The analysis result indicates that the vertical direction spatial substructure method is adapted to the nonlinear mechanical analysis of structures with multiturret.