沈阳市天然气管网系统抗震可靠性优化研究  

Optimization of shenyang city's natural gas pipeline system under earthquake

作　　者：李杰[1] 刘威[1] 包元锋 周静海[3] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]上海现代华盖建筑设计有限公司,上海200000 [3]沈阳建筑大学土木工程系,辽宁沈阳110000

出　　处：《世界地震工程》2007年第1期26-30,共5页World Earthquake Engineering

基　　金：国家自然科学基金项目(50321803);沈阳市科技攻关项目(1032045-3-01)

摘　　要：供气管网系统抗震可靠性优化提供了系统改造决策的依据,是对系统抗震可靠性分析研究的深化。结合供气管网系统抗震分析的递推分解算法,介绍了利用遗传算法进行供气管网系统抗震优化分析的方法,以沈阳市供气管网系统为例,进行了实际工程的优化研究。Seismic reliability optimization of gas pipeline system, provides a scheme for the system reconstruction, so reliability analysis of the gas pipeline system is deepened. Combining with recursive decomposition algorithm which is used to calculate the gas pipeline system reliability, genetic algorithm is presented to optimize the gas pipeline system subject to earthquake. As an example, the method is applied to Shenyang city＇s gas pipeline system. As the results subject to three different restrictions, on of three optimization systems can be chosen as reconstruction scheme according to the requirement of syster, reliability.

关 键 词：抗震可靠性 遗传算法 优化 

分 类 号：P315[天文地球—地震学]