具有随机几何缺陷的单层网壳临界荷载的确定  

DETERMINATION OF THE CRITICAL LOADSOF SINGLE LAYER LATTICE DOMES WITHSTOCHASTIC GEOMETRICAL IMPERFECTIONS

作　　者：黄为民[1] 赵惠麟[1] 

机构地区：[1]东南大学土木系

出　　处：《空间结构》1994年第2期26-32,共7页Spatial Structures

摘　　要：本文提出微小初挠曲杆件的单元切线刚度矩阵。通过对随机计算所得临界荷载的分析，认为单层网壳的临界荷载近似呈正态分布。在此基础上，本文给出求解随机几何缺陷下单层网壳临界荷栽的迭代方法。Abstract The tanrent stiffes matrix of element with small initial currature is pitsented. From analyzingthe ctitical loads calculatrrl by Monte Flenient Method, the assumption that critical loads ofimperfert single layer lattice domes is nomially distributed is pmvided. ttied on this assuniption, anitemtive apptoach to calculate the critical loads of single layer lattice domes with initial stochasticgeomctrii:al imperfortions is given

关 键 词：单层网壳 临界荷载 切线刚度 杆件 曲杆 基础 随机 挠曲 

分 类 号：TU323[建筑科学—结构工程] TU356