市政管线可靠指标计算的优化模型及其MatLab实现  

Optimization Model and Realization in MatLab for the Reliability Index Calculation of Municipal Pipelines

作　　者：王威[1] 韩阳[2] 宋红领[1] 张钰[1] 

机构地区：[1]北京工业大学抗震减灾研究所,100022 [2]河南工业大学防灾减灾工程研究所,郑州450052

出　　处：《特种结构》2009年第2期114-117,共4页Special Structures

基　　金：国家十一五科技支撑计划项目(2006BAJ06B01;2006BAH06B03)

摘　　要：为提高城市市政管线安全运行的可靠度,根据工程结构可靠性理论,从正态空间中结构可靠度指标β的几何意义出发,将服从任意概率分布的随机变量X_i映射为标准正态随机变量Y_i,建议了管道可靠指标计算的一种优化模型,同时探讨了优化模型在MatLab环境中的实现。最后应用该方法对相关市政管线可靠性进行评价,结果表明得到了满意的结果。In order to improve the reliability of municipal pipeline safe operation, according to the reliability theory for engineering structures, stochastic variable Xi following any probability distribution function is mapped to stochastic variable Yi with standard normal distribution function based on β＇s geometry significance in the normal space. Optimization model for solving pipe structures reliability index was founded. At the same time, solution of the model was discussed in MatLab. Finally, some samples were evaluated by the optimization model and satisfactory results were obtained.

关 键 词：市政管线 可靠度 优化模型 MATLAB 映射变化法 

分 类 号：TU990.3[建筑科学—市政工程] TN710[电子电信—电路与系统]