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

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Title: The effect of vehicle velocity on the dynamic amplification of two vehicles crossing a simply supported bridge
Authors: Brady, Sean P.
O'Brien, Eugene J.
Permanent link: http://hdl.handle.net/10197/2375
Date: Mar-2006
Abstract: The effect of multiple vehicles on a bridge’s dynamic amplification is a complex problem. Previously authors have examined multiple vehicle presence by constructing elaborate finite element models or undertaking field tests. Although both these methods give valuable information regarding the magnitude of dynamic amplification, the results tend to be site-specific and give limited insight into how large amplifications occur. This paper examines the dynamic amplification factor of a simply supported bridge being crossed by two loads traveling in both the same and opposing directions. Simple numerical point load models are used to determine the critical load velocities and load positions that result in high amplifications. An experimentally validated finite element model is used to examine the applicability of the conclusions to real bridge/vehicle systems.
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(250)
Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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