Optimization design of anti-seismic engineering measures for intake tower based on non-dominated sorting genetic algorithm-II

Abstract

High-rise intake towers in high-intensity seismic areas are prone to structural safety problems under vibration. Therefore, effective and low-cost anti-seismic engineering measures must be designed for protection. An intake tower in northwest China was considered the research object, and its natural vibration characteristics and dynamic response were first analyzed using the mode decomposition response spectrum method based on a three-dimensional finite element model. The non-dominated sorting genetic algorithm-II (NSGA-II) was adopted to optimize the anti-seismic scheme combination by comprehensively considering the dynamic tower response and variable project cost. Finally, the rationality of the original intake tower antiseismic design scheme was evaluated according to the obtained optimal solution set, and recommendations for improvement were proposed. The method adopted in this study may provide significant references for designing anti-seismic measures for high-rise structures such as intake towers located in high-intensity earthquake areas.

Graphical abstract

Keywords

intake tower / NSGA-II / mode decomposition response spectrum method / anti-seismic engineering measures / optimization design / variable project cost

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Acknowledgements

This study was supported by the National Natural Science Foundation of the China/Yalong River Joint Fund Project (No. U1765205).

Conflict of Interest

The authors declare that they have no conflict of interest.

RIGHTS & PERMISSIONS

2023 Higher Education Press