Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design

In-structure shock poses a great threat to equipment and devices in underground protective structures, preventing them from accomplishing designed tasks. Unlike traditional mitigation methods such as backfilling soft soil or sand around the buried structures and adding shock-isolation cushions to th...

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Main Authors: Zhou, Hongyuan, Ma, Guowei
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2012
Subjects:
Online Access:https://hdl.handle.net/10356/94971
http://hdl.handle.net/10220/8135
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-949712020-03-07T11:43:41Z Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design Zhou, Hongyuan Ma, Guowei School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering In-structure shock poses a great threat to equipment and devices in underground protective structures, preventing them from accomplishing designed tasks. Unlike traditional mitigation methods such as backfilling soft soil or sand around the buried structures and adding shock-isolation cushions to the equipment, a new structural design of underground structures are proposed by constructing an isolation slab, to which the equipment is attached. The excitation mechanism for the equipment attached to the slab is altered from the combination of flexural deflection and rigid body motion of the traditional floor to the response of the isolation slab. Analysis indicates that vertical shock level experienced by the equipment is effectively reduced. The in-structure shock mitigation approach proposed in the present study provides a supplement to the existing shock mitigation methods for underground structures. 2012-05-23T03:52:28Z 2019-12-06T19:05:37Z 2012-05-23T03:52:28Z 2019-12-06T19:05:37Z 2012 2012 Journal Article Zhou, H. Y. & Ma, G. W. (2012). Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design. Engineering Structures, 35, 314-321. https://hdl.handle.net/10356/94971 http://hdl.handle.net/10220/8135 10.1016/j.engstruct.2011.08.032 163213 en Engineering structures © 2011 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Engineering structures, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.engstruct.2011.08.032 ] 35 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering
spellingShingle DRNTU::Engineering::Civil engineering
Zhou, Hongyuan
Ma, Guowei
Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
description In-structure shock poses a great threat to equipment and devices in underground protective structures, preventing them from accomplishing designed tasks. Unlike traditional mitigation methods such as backfilling soft soil or sand around the buried structures and adding shock-isolation cushions to the equipment, a new structural design of underground structures are proposed by constructing an isolation slab, to which the equipment is attached. The excitation mechanism for the equipment attached to the slab is altered from the combination of flexural deflection and rigid body motion of the traditional floor to the response of the isolation slab. Analysis indicates that vertical shock level experienced by the equipment is effectively reduced. The in-structure shock mitigation approach proposed in the present study provides a supplement to the existing shock mitigation methods for underground structures.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Zhou, Hongyuan
Ma, Guowei
format Article
author Zhou, Hongyuan
Ma, Guowei
author_sort Zhou, Hongyuan
title Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
title_short Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
title_full Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
title_fullStr Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
title_full_unstemmed Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
title_sort double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
publishDate 2012
url https://hdl.handle.net/10356/94971
http://hdl.handle.net/10220/8135
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