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板片空间结构的改进一致缺陷模态法
引用本文:陈东,赵才其,王修信,陈永健. 板片空间结构的改进一致缺陷模态法[J]. 工业建筑, 2007, 37(Z1)
作者姓名:陈东  赵才其  王修信  陈永健
作者单位:东南大学,土木工程学院,南京,210096
基金项目:教育部科学技术研究重点项目资助(105083)
摘    要:目前工程上对结构进行缺陷稳定分析的主要方法是一致缺陷模态法。而利用该法对板片空间结构进行缺陷稳定分析得到的并不是结构的最小临界荷载。为此提出了改进的方法,即通过N-R法来引入结构的初始几何缺陷。为了检验改进方法的可行性,采用一个单层模型试验加以验证并且通过随机缺陷模态法得到了改进方法的可靠度。通过以上的检验,改进方法是可行的。这对板片空间结构的设计和研究有着重要的意义。

关 键 词:板片空间结构  最小临界荷载  一致缺陷模态法  N-R法  可靠度  模型试验

IMPROVED CONSISTENT IMPERFECT BUCKLING ANALYSIS METHOD FOR STABILITY ANALYSIS OF SHEET SPACE STRUCTURE
Chen Dong,Zhao Caiqi,Wang Xiuxin,Chen Yongjian. IMPROVED CONSISTENT IMPERFECT BUCKLING ANALYSIS METHOD FOR STABILITY ANALYSIS OF SHEET SPACE STRUCTURE[J]. Industrial Construction, 2007, 37(Z1)
Authors:Chen Dong  Zhao Caiqi  Wang Xiuxin  Chen Yongjian
Abstract:The consistent imperfect buckling analyses method(CIBAM) is the main approach of analyzing the stability of the structure with the geometrical imperfection in the civil engineering field.There was limitation that the obtained minimum stability bearing capacity by CIBAM was not the real smallest one for the sheet space structure system.To enable the method to fit the sheet space structures,simulating the initial geometrical imperfections with the N-R method,an improved consistent imperfect buckling analysis method(ICIBAM) was proposed in this paper.The ICIBAM was approved correct by model experiment and its dependability got by the stochastic imperfection method.So the ICIBAM is important to design and application of the sheet space structure system.
Keywords:sheet space structure minimum stability bearing capacity consistent imperfect buckling analysis method N-R method dependability model experiment
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