SEISMIC RELIABILITY ANALYSIS AND OPTIMIZATION DESIGN OF URBAN WATER DISTRIBUTION NETWORK
In this paper,a seismic functional reliability method and an optimization design program for water distribution network(WDN) are introduced.Combining pipeline seismic response with leakage model,the leakage flow of the WDN subject to earthquake can be derived.By adding the leakage flow to the hydraulic equation in a daily operation state,a hydraulic analysis equation for the WDN subject to earthquake is constructed.Because of the randomness of the earthquake and pipelines characteristics,a random perturbation method is used to solve this stochastic equation.Then,a first-order reliability method (FORM) is used to give the seismic functional reliability index of WDN.Meanwhile,a topology optimization program is established to design the WDN subject to earthquake.Herein,taking the functional reliability index as optimization restraint and network topology as optimization objection,a seismic topology optimization model of WDN is established to obtain the least-cost WDN.In order to solve this model,a simulated annealing genetic algorithm (SAGA) is introduced to solve the optimization model.An example is used to illustrate the seismic functional analysis method and optimization program of WDN.
Water distribution network seismic reliability analysis topology optimizaiont simulated annealing genetic algorithm
Wei Liu Jie Li
Department of Building Engineering, Tongji University, Shanghai, 200092, P.R.China; State Key Laboratory for Disaster Reduction in Civil Engineering, Shanghai, 200092, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
1072-1076
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）