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Innovative seismic resistant structure of shield building with base isolation and tuned-mass-damping for AP1000 nuclear power plants

Gangling Hou (College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China)
Meng Li (College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China)
Sun Hai (College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China)
Tianshu Song (College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China)
Lingshu Wu (College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China)
Yong Li (Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada)
Gang Zheng (State Power Investment Corporation Central Research Institute, Beijing, China)
Feng Shen (State Power Investment Corporation Central Research Institute, Beijing, China)
Yaodong Chen (State Power Investment Corporation Central Research Institute, Beijing, China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 5 June 2019

Issue publication date: 5 June 2019

248

Abstract

Purpose

Seismic isolation, as an effective risk mitigation strategy of building/bridge structures, is incorporated into AP1000 nuclear power plants (NPPs) to alleviate the seismic damage that may occur to traditional structures of NPPs during their service. This is to promote the passive safety concept in the structural design of AP1000 NPPs against earthquakes.

Design/methodology/approach

In conjunction with seismic isolation, tuned-mass-damping (TMD) is integrated into the seismic resistance system of AP1000 NPPs to satisfy the multi-functional purposes. The proposed base-isolation-tuned-mass-damper (BIS-TMD) is studied by comparing the seismic performance of NPPs with four different design configurations (i.e. without BIS, BIS, BIS-TMD and TMD) with the design parameters of the TMD subsystem optimized.

Findings

Such a new seismic protection system (BIS-TMD) is proved to be promising because the advantages of BIS and TMD can be fully used. The benefits of the new structure include effective energy dissipation (i.e. wide vibration absorption band and a stable damping effect), which results in the high performance of NPPs subject to earthquakes with various intensity levels and spectra features.

Originality/value

Parametric studies are performed to demonstrate the seismic robustness (e.g. consistent performance against the changing mass of the water in the gravity liquid tank and mechanical properties) which further ensures that seismic safety requirements of NPPs can be satisfied through the use of BIS-TMD.

Keywords

Acknowledgements

The authors are very thankful to Professor Jinping Ou, Professor Hui Li, Professor Rong Pan and Professor Chunfeng Zhao for their guidance of comments and suggestions in designing isolator. The authors also appreciate reviewers’ advice for improving the manuscript. The research presented in this paper is financially supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China (Large Advanced PWR Nuclear Power Station, Grant No. 2018ZX06005002), Chinese Universities Scientific Fund (Grant No HEUCFP201846). The authors also appreciate their support.

Citation

Hou, G., Li, M., Hai, S., Song, T., Wu, L., Li, Y., Zheng, G., Shen, F. and Chen, Y. (2019), "Innovative seismic resistant structure of shield building with base isolation and tuned-mass-damping for AP1000 nuclear power plants", Engineering Computations, Vol. 36 No. 4, pp. 1238-1257. https://doi.org/10.1108/EC-10-2018-0483

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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