The effect of vehicle velocity on the dynamic amplification of a vehicle crossing a simply supported bridge

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Title: The effect of vehicle velocity on the dynamic amplification of a vehicle crossing a simply supported bridge
Authors: Brady, Sean P.
O'Brien, Eugene J.
Znidaric, Ales
Permanent link: http://hdl.handle.net/10197/2327
Date: Mar-2006
Abstract: Many authors, using both experimental tests and complex numerical models, have examined the effect of vehicle velocity on a highway bridge’s dynamic amplification. Although these tests and models give valuable quantitative information on dynamic amplification, they give little insight into how amplification is affected by individual vehicle/bridge parameters. This paper uses relatively simple numerical models to investigate the effect of vehicle velocity on a bridge’s dynamic amplification. A single vehicle crossing a simply supported bridge is modeled as a constant point force. A set of critical velocities are determined associated with peaks of dynamic amplification for all beams. The reasons for these large amplifications are discussed. A more complex finite element model, validated with field tests, is used to test the applicability of the conclusions obtained from the simple models to a realistic bridge/vehicle system.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: American Society of Civil Engineering (ASCE)
Copyright (published version): 2006 ASCE
Keywords: Dynamic analysis;Velocity;Trucks;Amplification
Subject LCSH: Bridges--Live loads
Bridges--Materials--Dynamic testing
DOI: 10.1061/(ASCE)1084-0702(2006)11:2(241)
Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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