The development of a dynamic amplification estimator for bridges with good road profiles

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Title: The development of a dynamic amplification estimator for bridges with good road profiles
Authors: Li, Yingyan
O'Brien, Eugene J.
González, Arturo
Permanent link: http://hdl.handle.net/10197/2529
Date: May-2006
Abstract: The paper considers the influence of the surface profile on the dynamic amplification of a simply supported bridge when subject to a quarter car vehicle model. The effect of the profile irregularities on the bridge dynamic amplification is characterized with a ‘response surface’ giving dynamic amplification due to a ‘unit ramp’ at any location. Even though the dynamic interaction problem is non-linear, the effects of all ramps which together make up a road profile can be calculated separately and added using the ‘response surface’. This superposition process achieves reasonable accuracy for ‘good’ (moderately smooth) surface profiles. An accurate estimate of dynamic amplification for bridges is demonstrated with a wide range of good profiles.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Elsevier
Copyright (published version): 2005 Elsevier Ltd
Keywords: DynamicsRoughnessBridgeVehicle
Subject LCSH: Structural dynamics
Surface roughness
Bridges--Live loads
Pavements
DOI: 10.1016/j.jsv.2005.09.015
Language: en
Status of Item: Peer reviewed
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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