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In - structure shock assessment of underground structures with consideration of rigid body motion / Guowei Ma in Journal of engineering mechanics, Vol. 137 N° 12 (Decembre 2011) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 137 N° 12 (Decembre 2011) . - pp.797-806 Titre : In - structure shock assessment of underground structures with consideration of rigid body motion Type de document : texte imprimé Auteurs : Guowei Ma, Auteur ; Hongyuan Zhou, Auteur ; Karen Chong, Auteur Année de publication : 2012 Article en page(s) : pp.797-806 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Underground  structures  Blast  loads  Soil  -  structure  interactions  Structural  response  Response  spectra Résumé : The present study assesses the in-structure shock of an underground structure induced by a nearby subsurface detonation. Both the rigid body motion of the entirely buried structure and the local response of the structural element are considered in characterizing the in-structure shock. Soil-structure interaction, behaving as an interfacial damping, is taken into account, and the effect of different surrounding soils is investigated. A response spectrum is plotted for assessing in-structure shock induced by a typical subsurface detonation, and subsequently the safety of the internal facilities and equipment mounted on the buried structure is evaluated. For safety purposes, the protective structures are better constructed in a site with small acoustic impedance and a large attenuation factor. Results show that the proposed in-structure shock assessment method is effective and can be used as a supplement to TM-5-855-1 and TM-5-1300. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i12/p797_s1?isAuthorized=no [article] In - structure shock assessment of underground structures with consideration of rigid body motion [texte imprimé] / Guowei Ma, Auteur ; Hongyuan Zhou, Auteur ; Karen Chong, Auteur . - 2012 . - pp.797-806. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 137 N° 12 (Decembre 2011) . - pp.797-806 Mots-clés : Underground  structures  Blast  loads  Soil  -  structure  interactions  Structural  response  Response  spectra Résumé : The present study assesses the in-structure shock of an underground structure induced by a nearby subsurface detonation. Both the rigid body motion of the entirely buried structure and the local response of the structural element are considered in characterizing the in-structure shock. Soil-structure interaction, behaving as an interfacial damping, is taken into account, and the effect of different surrounding soils is investigated. A response spectrum is plotted for assessing in-structure shock induced by a typical subsurface detonation, and subsequently the safety of the internal facilities and equipment mounted on the buried structure is evaluated. For safety purposes, the protective structures are better constructed in a site with small acoustic impedance and a large attenuation factor. Results show that the proposed in-structure shock assessment method is effective and can be used as a supplement to TM-5-855-1 and TM-5-1300. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i12/p797_s1?isAuthorized=no