Seismic performance of base-isolated AP1000 shield building with consideration of fluid-structure interaction

Wang, D; Zhang, Y; Wu, C; Xue, G; Huang, W

Seismic performance of base-isolated AP1000 shield building with consideration of fluid-structure interaction

Wang, D Zhang, Y Wu, C

Xue, G Huang, W

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Nuclear Engineering and Design: an international journal devoted to the thermal, mechanical, materials, and structural aspects of nuclear fission energy, 2019, 353
Issue Date:: 2019-11-01

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Field	Value	Language
dc.contributor.author	Wang, D
dc.contributor.author	Zhang, Y
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934
dc.contributor.author	Xue, G
dc.contributor.author	Huang, W
dc.date.accessioned	2023-03-26T22:12:22Z
dc.date.available	2023-03-26T22:12:22Z
dc.date.issued	2019-11-01
dc.identifier.citation	Nuclear Engineering and Design: an international journal devoted to the thermal, mechanical, materials, and structural aspects of nuclear fission energy, 2019, 353
dc.identifier.issn	0029-5493
dc.identifier.issn	1872-759X
dc.identifier.uri	http://hdl.handle.net/10453/168439
dc.description.abstract	© 2019 Elsevier B.V. Seismically-induced FSI effect on dynamic responses of AP1000 shield building with base isolation is focused in this study using numerical simualtion. The numerical model is firstly validated by comparison with existing experimental results, which is capable of simulating dynamic behaviors of the water partially-filled shield building with seismic isolation using high damping rubber (HDR) bearings. The influences of FSI on seismic performance of the base-isolated and base-fixed AP1000 shield building with various water levels and on the corresponding isolation effectiveness are comparatively explored in details. Results show that base isolation can reduce the fundamental frequency of the shield building and make it close to water sloshing frequency. It is necessary to ensure an reasonable isolation design to keep the fundamental frequency away from the sloshing frequency and then to avoid the water resonance. Seismic isolation can offer a substantial benefit for the earthquake-resistant design of the shield building even filled with different levels of water, because the structural primary resonance is effectively transformed to the sub-resonance by application of base isolation. Dynamic responses of base-isolated models are influenced significantly by FSI and an optimal water level ratio of 0.8 is suggested to achieve excellent seismic performance for such structures.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Nuclear Engineering and Design: an international journal devoted to the thermal, mechanical, materials, and structural aspects of nuclear fission energy
dc.relation.isbasedon	10.1016/j.nucengdes.2019.110241
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0915 Interdisciplinary Engineering
dc.subject.classification	Energy
dc.title	Seismic performance of base-isolated AP1000 shield building with consideration of fluid-structure interaction
dc.type	Journal Article
utslib.citation.volume	353
utslib.for	0915 Interdisciplinary Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
pubs.consider-herdc	true
dc.date.updated	2023-03-26T22:12:20Z
pubs.publication-status	Published
pubs.volume	353

Abstract:

© 2019 Elsevier B.V. Seismically-induced FSI effect on dynamic responses of AP1000 shield building with base isolation is focused in this study using numerical simualtion. The numerical model is firstly validated by comparison with existing experimental results, which is capable of simulating dynamic behaviors of the water partially-filled shield building with seismic isolation using high damping rubber (HDR) bearings. The influences of FSI on seismic performance of the base-isolated and base-fixed AP1000 shield building with various water levels and on the corresponding isolation effectiveness are comparatively explored in details. Results show that base isolation can reduce the fundamental frequency of the shield building and make it close to water sloshing frequency. It is necessary to ensure an reasonable isolation design to keep the fundamental frequency away from the sloshing frequency and then to avoid the water resonance. Seismic isolation can offer a substantial benefit for the earthquake-resistant design of the shield building even filled with different levels of water, because the structural primary resonance is effectively transformed to the sub-resonance by application of base isolation. Dynamic responses of base-isolated models are influenced significantly by FSI and an optimal water level ratio of 0.8 is suggested to achieve excellent seismic performance for such structures.

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http://hdl.handle.net/10453/168439