Field Evaluation of Decommissioned Noncomposite Steel Girder Bridge
Publication: Journal of Bridge Engineering
Volume 7, Issue 1
Abstract
Field tests conducted on a noncomposite steel girder bridge are described. Two separate 36.6 m (120 ft) units, each three-span continuous, were subjected to increasing static loads by means of a trailer and concrete barriers. Results show that the girders acted as partially composite sections in the positive moment region up to the onset of yield. Due to curb participation and the transverse location of the applied load, exterior girders exhibited a higher degree of partially composite action. In the negative moment region, partially composite action was evident only in the exterior girders. As a result of partially composite action and curb participation, the yield load was about 7% higher than predicted. Bearing restraint is shown not to have a significant impact on the behavior of the tested bridges. In addition, the stiffness of the interior girders, as measured under the constant weight of a dump truck, are shown to be virtually unaffected by the heavy trailer loads. More significant changes in girder stiffness were observed between different transverse load positions of the dump truck.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 7 • Issue 1 • January 2002
Pages: 39 - 49
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Oct 31, 2000
Accepted: Apr 26, 2001
Published online: Jan 1, 2002
Published in print: Jan 2002
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