Bearing Replacement for Prestressed Concrete I-Girder Bridges
Publication: Journal of Bridge Engineering
Volume 6, Issue 4
Abstract
This paper deals with the jacking procedure for the replacement of prestressed concrete I-girder bearings, without damaging the superstructure. The finite-element method-based analysis procedure to compute the jacking force and overall jacking sequence for the girders is proposed. The proposed method takes into account the stress concentration at the loaded area on the girder and the behavior of superstructure due to the jacking force. An analytical equation is proposed to compute the allowable jacking force considering the bursting stress induced at the loaded area on the girder. On the other hand, the overall jacking sequence to lift the superstructure for the bearing replacement is determined by considering the response of the superstructure being jacked. This paper also includes an illustrative example of a jacking procedure for a prototype prestressed concrete I-girder bridge.
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References
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 6 • Issue 4 • August 2001
Pages: 271 - 275
History
Received: Jan 3, 2000
Published online: Aug 1, 2001
Published in print: Aug 2001
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