Seismic Resilience Enhancement of Water Pipe Networks Using Hybrid Metaheuristic Optimization

Seismic Resilience Enhancement of Water Pipe Networks Using Hybrid Metaheuristic Optimization
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使用混合元启发式优化增强水管网的抗震能力

DOI:
10.1061/9780784483190.047
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发表时间:
2020
期刊:
ASCE
影响因子:
--
通讯作者:
Shahandashti, S. M.
Shahandashti, S. M.
中科院分区:
--
文献类型:
--
作者:
Pudasaini, B.;Shahandashti, S. M.

文献摘要

参考文献

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迫切需要一个有效的模型,能够最大限度地提高水管网抗震恢复所花费的每一美元的抗震能力。因此,本研究进行了一个目标,确定经济的地震恢复政策,水管网络,使用混合元启发式优化模型。混合元启发式优化是基于模拟退火和遗传算法相结合的。确定的混合元启发式的解决方案产生水管修复政策,导致最大的震后网络服务在给定的修复预算约束。该模型在城市规模管网上进行了测试。通过与文献中最新模型结果的比较,验证了该模型在识别地震风险较大的供水管网经济抗震修复策略中的有效性。建议的优化模型,预计将帮助许多公用事业管理人员在显着提高水管网络的抗震能力,是非常容易受到严重的服务性损失,由于地震。
There is a crucial need for an effective model that can maximize the seismic resilience enhancement resulted out of every dollar spent on the seismic rehabilitation of water pipe networks. Hence, this study was carried out with an objective of identifying economical seismic rehabilitation policies, for water pipe networks, using a hybrid metaheuristic optimization model. The hybrid metaheuristic optimization is based on the combination of simulated annealing and genetic algorithm. The solution identified by the hybrid metaheuristic yields water pipe rehabilitation policies that lead to maximal post-earthquake network serviceability under given rehabilitation budget constraints. The proposed model was tested on a city-scale pipe network. The comparison of the results produced by the current model with the results from a latest model in literature validates the effectiveness of the proposed model in identifying economical seismic rehabilitation policies for water pipe networks exposed to significant seismic risks. The proposed optimization model is expected to help many utility managers in significantly enhancing the seismic resilience of water pipe networks that are highly susceptible to severe serviceability loss due to earthquakes.
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