北京工业大学城市建设学部,北京 100124
侯本伟(1984—),男,副教授。主要从事生命线地震工程研究。E-mail: benweihou@bjut.edu.cn
吴珊(1963—),女,副教授。主要从事供排水管网模型优化与管理研究。E-mail: wushan@bjut.edu.cn
收稿:2023-02-09,
修回:2023-04-09,
纸质出版:2024-08-30
移动端阅览
侯本伟,程雪,缪惠全等.基于代理指标的供水管网抗震改造优化[J].防灾减灾工程学报,2024,44(04):839-848.
HOU Benwei,CHENG Xue,MIAO Huiquan,et al.Seismic Retrofit Optimization of Water Distribution System Based on Proxy Indicators[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):839-848.
侯本伟,程雪,缪惠全等.基于代理指标的供水管网抗震改造优化[J].防灾减灾工程学报,2024,44(04):839-848. DOI: 10.13409/j.cnki.jdpme.20230209002.
HOU Benwei,CHENG Xue,MIAO Huiquan,et al.Seismic Retrofit Optimization of Water Distribution System Based on Proxy Indicators[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):839-848. DOI: 10.13409/j.cnki.jdpme.20230209002.
基于水力模型计算的管网供水量满足率(
SSIQ
)指标,是评估供水管网震后性能的常用指标。在供水管网抗震改造优化模型中,若采用
SSIQ
表示优化目标函数,优化求解需进行大量水力模型计算,计算耗时很长。为减小管网抗震改造优化模型的计算量,对节点流量韧性指标(
FR
)进行了改进,增加了管道破坏漏水能量损失的影响项,提出了一种管网能量指标(Energy Resilience,
ER
)表示震后管网性能;以
ER
指标作为
SSIQ
的代理指标,用于量化抗震改造优化模型的目标函数。仅通过管道地震失效概率、管网震前正常运行工况的水力参数计算
ER
指标,不必进行震后管网水力模型计算,以期提升优化模型计算效率。以供水管网震后性能最大化和改造费用最小化为目标,以管道抗震改造措施为优化变量,建立了管网抗震改造多目标优化模型,并比较了
ER
指标、
FR
指标以及两个拓扑代理指标的替代效果。案例管网应用结果表明,
ER
指标与
SSIQ
指标相关系数呈现强相关性,基于
ER
指标的优化方案与基于
SSIQ
指标的优化方案的差异小于3%,
ER
指标优化模型计算时间不足
SSIQ
指标优化模型计算时间的1%。
The system serviceability index of quantity (
SSIQ
)
calculated base
d on hydraulic models
is a widely used indicator to evaluate the post-seismic performance of water distribution systems (WDS). However
using
SSIQ
as the objective function in seismic retrofit optimization models for WDS requires extensive hydraulic calculations
leading to time-consuming computational burden. To reduce this burden
the node flow resilience (
FR
) indicator was improved by incorporating the impact of pipeline breakage and leakage energy loss
and a network energy indicator
energy resilience (
ER
)
was proposed to represent the post-seismic performance of WDS.
ER
served as a proxy for
SSIQ
to quantify the objective function of a seismic retrofit optimization model. This indicator could be calculated without the need for post-seismic hydraulic model calculations
which was achieved by using only the seismic failure probability of pipelines and the hydraulic parameters of WDS under normal operations
thereby improving the computational efficiency of the optimization model. With the objectives of maximizing the post-seismic performance and minimizing the retrofit costs of WDS
a multi-objective optimization model for pipeline seismic retrofitting was established
with pipeline seismic retrofit measures as optimization variables. The performance of
ER
FR
and two topological proxy indicators were compared. Network application results in the case study indicated that
ER
showed strong correlation with
SSIQ
with the difference between the optimization schemes based on
ER
and that based on
SSIQ
being less than 3%. The computation time for the
ER
optimization model was less than 1% of that for
SSIQ
optimization model.
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