Numerical study of structural progressive collapse using substructure technique

Li, J; Hao, H

Numerical study of structural progressive collapse using substructure technique

Li, J

Hao, H

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Publication Type:: Journal Article
Citation:: Engineering Structures, 2013, 52 pp. 101 - 113
Issue Date:: 2013-07-01

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Field	Value	Language
dc.contributor.author	Li, J https://orcid.org/0000-0003-2457-1994	en_US
dc.contributor.author	Hao, H	en_US
dc.date.issued	2013-07-01	en_US
dc.identifier.citation	Engineering Structures, 2013, 52 pp. 101 - 113	en_US
dc.identifier.issn	0141-0296	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117487
dc.description.abstract	During their service life, modern structures may experience extreme loading conditions. Large loads generated from bomb explosion may have catastrophic consequences with a large number of casualties as well as great economical loss. Ever since the terrorist attack of 2001, great safety concerns have been raised for urban areas where more and more high-rise buildings have been erected and thus are more prone to suffer the potential threat. Among all the structural responses to blast loads, the catastrophic progressive collapse has attracted great attention around the world. Experimental studies on this topic are not only expensive but also are often prohibited due to safety concerns. With the advancement of computational mechanics techniques and computer power, reliable computer simulations of structural response and collapse to blast loads become possible. However, even with modern computer power, such computer simulations are still extremely time and resource consuming. In this paper, a new numerical approach that incorporates static condensation into the FE model is presented to simulate blast load induced structural response and progressive collapse. Two 6-story RC frame buildings are used as examples to demonstrate the efficiency of the proposed method. For comparison, direct finite element modeling of the same example frame structure is also carried out. Comparing the results from both approaches, it is found that the proposed method is efficient and reliable in simulating the structural response and progressive collapse with substantially less computational effort as compared to the direct FE model simulations. © 2013 Elsevier Ltd.	en_US
dc.relation.ispartof	Engineering Structures	en_US
dc.relation.isbasedon	10.1016/j.engstruct.2013.02.016	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Numerical study of structural progressive collapse using substructure technique	en_US
dc.type	Journal Article
utslib.citation.volume	52	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
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.publication-status	Published	en_US
pubs.volume	52	en_US

Abstract:

During their service life, modern structures may experience extreme loading conditions. Large loads generated from bomb explosion may have catastrophic consequences with a large number of casualties as well as great economical loss. Ever since the terrorist attack of 2001, great safety concerns have been raised for urban areas where more and more high-rise buildings have been erected and thus are more prone to suffer the potential threat. Among all the structural responses to blast loads, the catastrophic progressive collapse has attracted great attention around the world. Experimental studies on this topic are not only expensive but also are often prohibited due to safety concerns. With the advancement of computational mechanics techniques and computer power, reliable computer simulations of structural response and collapse to blast loads become possible. However, even with modern computer power, such computer simulations are still extremely time and resource consuming. In this paper, a new numerical approach that incorporates static condensation into the FE model is presented to simulate blast load induced structural response and progressive collapse. Two 6-story RC frame buildings are used as examples to demonstrate the efficiency of the proposed method. For comparison, direct finite element modeling of the same example frame structure is also carried out. Comparing the results from both approaches, it is found that the proposed method is efficient and reliable in simulating the structural response and progressive collapse with substantially less computational effort as compared to the direct FE model simulations. © 2013 Elsevier Ltd.

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http://hdl.handle.net/10453/117487