Behavior of suspended roofs under blast loading

Raftoyiannis, IG; Spyrakos, CC; Michaltsos, GT

dc.contributor.author	Raftoyiannis, IG	en
dc.contributor.author	Spyrakos, CC	en
dc.contributor.author	Michaltsos, GT	en
dc.date.accessioned	2014-03-01T01:25:58Z
dc.date.available	2014-03-01T01:25:58Z
dc.date.issued	2007	en
dc.identifier.issn	0141-0296	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17850
dc.subject	Blast loads	en
dc.subject	Multi-suspended roofs	en
dc.subject	Nonlinear dynamic analysis	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Damping	en
dc.subject.other	Dynamics	en
dc.subject.other	Equations of motion	en
dc.subject.other	Integration	en
dc.subject.other	Mathematical models	en
dc.subject.other	Stiffness	en
dc.subject.other	Structural design	en
dc.subject.other	Supports	en
dc.subject.other	Blast loads	en
dc.subject.other	Multi-suspended roofs	en
dc.subject.other	Nonlinear dynamic analysis	en
dc.subject.other	Roofs	en
dc.subject.other	Damping	en
dc.subject.other	Dynamics	en
dc.subject.other	Equations of motion	en
dc.subject.other	Integration	en
dc.subject.other	Mathematical models	en
dc.subject.other	Roofs	en
dc.subject.other	Stiffness	en
dc.subject.other	Structural design	en
dc.subject.other	Supports	en
dc.subject.other	damping	en
dc.subject.other	design	en
dc.subject.other	dynamic response	en
dc.subject.other	loading	en
dc.subject.other	roof	en
dc.subject.other	stability analysis	en
dc.subject.other	stiffness	en
dc.title	Behavior of suspended roofs under blast loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.engstruct.2006.04.006	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.engstruct.2006.04.006	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	This work deals with the nonlinear dynamic behavior of initially imperfect dissipative multi-suspended roof systems under blast loading. For various realistic combinations of geometrical, stiffness and damping parameters, the systems do not experience either snapping or large amplitude chaotic motions, contrary to findings reported for single and double suspension roof systems. A nonlinear analysis is employed to establish that global stability, being the main feature of multiple suspension roof systems, is captured by the proposed autonomous conservative models. Applying Lagrange's equations, the corresponding set of equations of motion for discrete models of multiple suspension roofs is obtained. Then, numerical integration of the equations of motion is performed via the Runge-Kutta scheme. The dynamic behavior of suspended roofs under blast loading is thoroughly examined for two cases of internal and external blast: source near the supports and source away from the supports. The problem is formulated in a simple manner that can be easily employed for preliminary design of multi-suspended roofs subjected to blast loads. (c) 2006 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Engineering Structures	en
dc.identifier.doi	10.1016/j.engstruct.2006.04.006	en
dc.identifier.isi	ISI:000242698000009	en
dc.identifier.volume	29	en
dc.identifier.issue	1	en
dc.identifier.spage	88	en
dc.identifier.epage	100	en