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

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

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Title: Double-layer floor to mitigate in-structure shock of underground structures : a conceptual design
Author: Zhou, Hongyuan; Ma, Guowei
Copyright year: 2012
Abstract: 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.
Subject: DRNTU::Engineering::Civil engineering.
Type: Journal Article
Series/ Journal Title: Engineering structures
School: School of Civil and Environmental Engineering
Rights: © 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 ]

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