摘要
对框架结构的失效机构的寻找及可靠度分折作了一些探讨,失效机构的寻找是建立在弹性矩阵分析基础上的逐段线性弹塑性分析,用修改出现塑性铰之后结构简图,把塑性抵抗力矩当作外载的处理方法,找出失效机构形式及与荷载的关系,并采用考虑了塑性内力重分布影响的条件概率方法计算了可靠度。
The finding of failure mechanism in a frame structure and the reliability analysis is mainly discussed.The finding of failure mechanism is done step by step with linear elastic-plastic analysis which is based on the analysis of elastic matrix.The relation between the failure mechanism form and the load can be found after the following processings,a correcting the simplified structural draw of plastic hinge;b.treating the plastic resistant moment.The Availability is calculated with the conditional probability considering the effect of plastic moment redistribution
出处
《北京工业大学学报》
CAS
CSCD
1989年第4期44-52,共9页
Journal of Beijing University of Technology
关键词
框架结构
可靠度
弹塑性分析
reliability
elastic-plastic analysis
failure mechanism
plastic hinge
condifional probability
