Dynamic Behavior of Steel Deck Tension-Tied Arch Bridges to Seismic Excitation
Publication: Journal of Bridge Engineering
Volume 7, Issue 1
Abstract
The dynamic responses of steel deck, tension-tied, arch bridges subjected to earthquake excitations were investigated. The 620 ft (189 m) Birmingham Bridge, located in Pittsburgh, was selected as an analytical model for the study. The bridge has a single deck tension-tied arch span and is supported by two bridge piers, which in turn are supported by the pile foundations. Due to the complex configuration of the deck system, two analytical models were considered to represent the bridge deck system. Using the normal mode method, seismic responses were calculated for two bridge models and the results were compared with each other. Three orthogonal records of the El Centro 1940 earthquake were used as input for the seismic response analysis. The modal contributions were also checked in order to obtain a reasonable representation of the response and to minimize computational cost. Displacements and stresses at the panel points of the bridge are calculated and presented in graphical form.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 7 • Issue 1 • January 2002
Pages: 57 - 67
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Jun 3, 1999
Accepted: Jan 10, 2000
Published online: Jan 1, 2002
Published in print: Jan 2002
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