【摘要】 本文基于规范给出的地下直管道的分析模型,考虑了地震发生的随机性和地震烈度划分的模糊性以及地下管道的三种破坏状态和相应的模糊变形(或模糊应力)区间,建立起地下直管线在地震波作用下的模糊随机可靠性分析方法。另外利用文献[2]中提出的具有部分耦联因素的模糊综合评判方法,给出了地下管线卓越周期的一种新的计算方法。本文方法简便、实用,可用于震害预测工作。更多还原

【Abstract】 Based on the analytical model of straight buried pipelines given in the current code, the fuzzy random reliability analysis method for these pipe-lines subjected to earthquake wave is proposed in this paper in considerationof the randomness of earthquake occurrence and the fuzziness of earthquakeintensity classification as well as the three failure modes of pipelines andtheir relevant fuzzy deformation (or fuzzy stress ) parts. By us eof the fuzzy comprehensive evaluation method with partial couplingfactors given in ref.[ 2 ], a new method for computing predominat period ofburied pipelines is presented.It is easy to use and practical in application toearthquake damage prediction.更多还原