Multi-objective optimization method for post-earthquake community building complex recovery scheduling and resilience evaluation

Through the multi-objective optimization analysis method and NSGA-II algorithm, the problems of post-earthquake recovery scheduling and resilience evaluation of community building complexes are solved, and the entire process of rapid prediction and optimization recovery under limited resources are achieved, which improves decision-making efficiency.

CN114386148BActive Publication Date: 2025-03-25DALIAN UNIV OF TECH
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Patent Information

Application Number
CN202210022074.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-01-10
Publication Date
2025-03-25
Estimated Expiration
2042-01-10

AI Technical Summary

Technical Problem

It is difficult for the existing technology to quickly and effectively evaluate and quantify the resilience of community building complexes, and reasonably arrange the post-earthquake recovery process of building complexes under limited resources.

Method used

Multi-objective optimization analysis method is adopted, by collecting basic information of building complexes and lifeline networks, analyzing structural responses and functional losses in earthquake scenarios, establishing community building complex recovery objective functions and constraints, and using NSGA-II algorithm for optimization analysis, predicting the optimal recovery scheduling and resilience evaluation of community building complexes.

Benefits of technology

It realizes the rapid prediction of the entire recovery process of community building complexes under the constraints of limited resources, provides a variety of Pareto frontier recovery paths, significantly reduces the dimension of optimization problems, and improves decision-making efficiency.

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Abstract

A multi-objective optimization method for post-earthquake community building complex recovery scheduling and resilience evaluation includes: S1 collecting basic information of the building complex and lifeline network that needs to be restored in the community, and dividing the work blocks; S2 determining the function loss and repair time of each single building in the community building complex, the post-earthquake function loss and recovery time of the building in each work block, and the lifeline network resource loss ratio in the block under the corresponding earthquake scenario, and obtaining the functional interdependence matrix between buildings; S3 establishing the recovery objective function and constraints, and establishing a multi-objective optimization model for community building complex recovery scheduling and resilience evaluation considering the interdependence of building functions under resources; S6 solving the optimization model, and giving the Pareto frontier of the optimal recovery process recovery trajectory of the community building work block. The present invention can significantly improve the efficiency of post-disaster recovery of community building complexes, and decision makers can make final decisions from limited optimal scheduling based on other preferences and experience, providing a basis for disaster prevention and mitigation and design planning of urban management agencies.
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