A Camber Study of MnDOT Prestressed Concrete I-Girders
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A Camber Study of MnDOT Prestressed Concrete I-Girders
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1998-01
Publisher
Minnesota Department of Transportation
Type
Report
Abstract
This project investigated the relationship between predicted and measured girder cambers. For more than three years,
researchers collected camber data on girders of various depths and lengths from the time of strand release until
shipment to the job site.
Researchers used three camber prediction methods to compare with the measured values: PCI method, Branson's timestep
approach, and "CRACK" analysis program by Ghali et. al. The Branson time-step approach resulted in the closest
predictions to the measured cambers. The PCI method, although simple, gave reasonable long-term camber results
compared with the more detailed methods.
Keywords
Prestressed bridge girders
Field measurements
Camber
Long-term effects
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MnDOT
1998-08
1998-08
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Minnesota Department of Transportation
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Woolf, Douglass; French, Catherine. (1998). A Camber Study of MnDOT Prestressed Concrete I-Girders. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/153486.
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