Geotechnical effects in the collapse of fukae (hanshin expressway) bridge, KOBE, 1995

Syngros, C; Mylonakis, G; Gazetas, G

dc.contributor.author	Syngros, C	en
dc.contributor.author	Mylonakis, G	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T02:49:46Z
dc.date.available	2014-03-01T02:49:46Z
dc.date.issued	2004	en
dc.identifier.issn	08950563	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34733
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-10944272583&partnerID=40&md5=a1fe2534524a06e120e531872c14d696	en
dc.subject.other	bridge collapse	en
dc.subject.other	Fukae bridge	en
dc.subject.other	Geotechnical effects	en
dc.subject.other	Ground motion	en
dc.subject.other	Bridges	en
dc.subject.other	Ductility	en
dc.subject.other	Earthquake effects	en
dc.subject.other	Failure (mechanical)	en
dc.subject.other	Foundations	en
dc.subject.other	Highway systems	en
dc.subject.other	Soil structure interactions	en
dc.subject.other	Soils	en
dc.subject.other	Vibrations (mechanical)	en
dc.subject.other	Geotechnical engineering	en
dc.title	Geotechnical effects in the collapse of fukae (hanshin expressway) bridge, KOBE, 1995	en
heal.type	conferenceItem	en
heal.publicationDate	2004	en
heal.abstract	The paper investigates the role of soil in the collapse of a 630m segment (Fukae section) of the elevated Hanshin Expressway during the severe Kobe earthquake of 1995. There is evidence that soil-foundation-structure interaction (SFSI) played a detrimental role in the performance of the system. There were 18 spans in total, all of which suffered a spectacular failure and transverse overturning. Several factors associated with poor structural design have already been identified. The scope of this paper is to complement the earlier studies by examining the role of soil in the collapse. Results indicate that the role of soil in the collapse was triple: (1) it modified the bedrock motion so that the frequency content of the resulting surface ground motion became disadvantageous for the particular structure; (2) the compliance of soil and foundation altered the vibrational characteristics of the bridge and moved it to a region of stronger response; (3) ductility demand on the pier was higher than the ductility demand of the system. The increase in seismic demand on the piers may have exceeded 100% in comparison with piers fixed at their base. The above results contradict the widespread view of an always-beneficial role of SFSI.	en
heal.journalName	Geotechnical Special Publication	en
dc.identifier.issue	126 II	en
dc.identifier.spage	1691	en
dc.identifier.epage	1700	en