Impact of sudden failure of cables on the dynamic performance of a cable-stayed bridge

Aoki, Y; Samali, B; Saleh, A; Valipour Goudarzi, H

Impact of sudden failure of cables on the dynamic performance of a cable-stayed bridge

Aoki, Y Samali, B

Saleh, A

Valipour Goudarzi, H

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Publisher:: Austroads Incorporated
Publication Type:: Conference Proceeding
Citation:: The Austroads 8th Bridge Conferences - Sustainable Bridges: The Thread of Society - proceedings Volume II, 2011, pp. 310 - 321
Issue Date:: 2011-01

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Field	Value	Language
dc.contributor.author	Aoki, Y	en_US
dc.contributor.author	Samali, B https://orcid.org/0000-0002-3426-7745	en_US
dc.contributor.author	Saleh, A https://orcid.org/0000-0002-2922-9701	en_US
dc.contributor.author	Valipour Goudarzi, H	en_US
dc.contributor.editor	Ponnampalam, V	en_US
dc.contributor.editor	Ancich, E	en_US
dc.contributor.editor	Madrio, H	en_US
dc.date	2011-10-31	en_US
dc.date.issued	2011-01	en_US
dc.identifier.citation	The Austroads 8th Bridge Conferences - Sustainable Bridges: The Thread of Society - proceedings Volume II, 2011, pp. 310 - 321	en_US
dc.identifier.isbn	978-1-921709-81-4	en_US
dc.identifier.uri	http://hdl.handle.net/10453/31428
dc.description.abstract	In cable stayed bridges corrosion and fatigue as well as extreme loadings such as earthquake, lightning strike and blast may lead to loss of cables. The vulnerability of cable stayed bridges for such cable loss scenarios has not been thoroughly investigated yet and is not considered in the current design practice. Accordingly, in this paper a primary study on vulnerability of cable stayed bridges against such extreme scenarios is undertaken. A two-dimensional Finite Element (FE) model of a cable-stayed bridge is developed in ANSYS. The mid-span of the bridge studied in this paper is 600 meter long and made of a steel box. The bridge is supported by two 140 meter tall steel towers and 56 steel cables. The bridge is analysed for two different cable loss scenarios and the global response of the structure (i.e. deformation of the bridge, bending moment at mid-span of the deck and the base of the tower, and axial force for deck and each cable) following the cable loss scenarios are studied. Further, dynamic amplification factors (DAF) for deflections and internal forces are determined by comparing the results of static analysis with the results obtained from transient dynamic analysis.	en_US
dc.publisher	Austroads Incorporated	en_US
dc.relation.ispartof	The Austroads 8th Bridge Conferences - Sustainable Bridges: The Thread of Society - proceedings Volume II	en_US
dc.relation.ispartof	Austroads Bridge Conference	en_US
dc.title	Impact of sudden failure of cables on the dynamic performance of a cable-stayed bridge	en_US
dc.type	Conference Proceeding
utslib.location	Australia	en_US
utslib.location.activity	Sydney, Australia	en_US
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Sydney, Australia
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.consider-herdc	true	en_US
pubs.finish-date	2011-11-05	en_US
pubs.place-of-publication	Australia	en_US
pubs.start-date	2011-10-31	en_US

Abstract:

In cable stayed bridges corrosion and fatigue as well as extreme loadings such as earthquake, lightning strike and blast may lead to loss of cables. The vulnerability of cable stayed bridges for such cable loss scenarios has not been thoroughly investigated yet and is not considered in the current design practice. Accordingly, in this paper a primary study on vulnerability of cable stayed bridges against such extreme scenarios is undertaken. A two-dimensional Finite Element (FE) model of a cable-stayed bridge is developed in ANSYS. The mid-span of the bridge studied in this paper is 600 meter long and made of a steel box. The bridge is supported by two 140 meter tall steel towers and 56 steel cables. The bridge is analysed for two different cable loss scenarios and the global response of the structure (i.e. deformation of the bridge, bending moment at mid-span of the deck and the base of the tower, and axial force for deck and each cable) following the cable loss scenarios are studied. Further, dynamic amplification factors (DAF) for deflections and internal forces are determined by comparing the results of static analysis with the results obtained from transient dynamic analysis.

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http://hdl.handle.net/10453/31428