Reference Type:  Journal Article
Record Number: 1
Author: Seim, C., Yen , P. and O'Connor, J. S.
Year: 2006
Title: Seismic retrofitting of highway truss bridges
Journal: Advanced Steel Construction
Volume: 2
Issue: 4
Pages: 15
Start Page: 374
Short Title: Seismic retrofitting of highway truss bridges
DOI: 10.18057/IJASC.2006.2.4.4
Keywords: bridge, truss, retrofit, retrofitting, seismic
Abstract: This paper presents a summary of the recently released document entitled Seismic RetrofittingGuidelines for Complex Steel Truss Highway Bridges (referred to here as the Guidelines).  The Federal HighwayAdministration (FHWA), commissioned MCEER (formally known as the Multidisciplinary Center for EarthquakeEngineering) to develop guidelines for seismic retrofitting of steel truss highway bridges as part of a larger researchproject.  The Guidelines list various types and articulations of trusses and define bridgeperformance levels underthe actions of a lower-level (LL) and an upper-level (UL) earthquake.  The Guidelines present methods ofstructural analysis, from simple linear-elastic to dynamic non-linear, time-history, to determine demand on thestructure.  Methods are presented for determining the capacities of the truss members and there are severalexamples of retrofit strategies.
Author Address: Senior Program Officer, Transportation Research, MCEER, University at Buffalo, State University of New York, Buffalo, New York 14261 USA