A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field Verification of Camber Estimates for Prestressed Girders
Prestressed concrete girders are used on many of Florida's bridges. These girders are subject to camber, the upward deflection of the girder due to the eccentricity of the prestressing force. Differences have been found between camber predicted by the design program employed by the FDOT and the measured field camber for prestressed Bulb-Tee girders. These differences can cause changes and delays during construction because of corrections to build-up and/or bearings of the bridge superstructure. The focus of this investigation was to obtain field measurements of camber on large prestressed girders over an extended period of time. This information was used to evaluate the current camber prediction model used by the FDOT. Specifically, the types of girders monitored for this project were (1) the 78-inch Florida Bulb-Tee girder, (2) the AASHTO Type IV girder, and (3) the AASHTO Type V girder.
Field Verification of Camber Estimates for Prestressed Girders
Prestressed concrete girders are used on many of Florida's bridges. These girders are subject to camber, the upward deflection of the girder due to the eccentricity of the prestressing force. Differences have been found between camber predicted by the design program employed by the FDOT and the measured field camber for prestressed Bulb-Tee girders. These differences can cause changes and delays during construction because of corrections to build-up and/or bearings of the bridge superstructure. The focus of this investigation was to obtain field measurements of camber on large prestressed girders over an extended period of time. This information was used to evaluate the current camber prediction model used by the FDOT. Specifically, the types of girders monitored for this project were (1) the 78-inch Florida Bulb-Tee girder, (2) the AASHTO Type IV girder, and (3) the AASHTO Type V girder.
Field Verification of Camber Estimates for Prestressed Girders
R. A. Cook (author) / D. Bloomquist (author) / J. E. Sanek (author)
2005
134 pages
Report
No indication
English
Prediction of camber in prestressed girders using finite element methods
| Tema Archive | 1975
PRECAST-PRESTRESSED CONCRETE - CAMBER VARIATION IN PRECAST GIRDERS - Florida DOT field monitoring
| Online Contents | 1999
| Engineering Index Backfile | 1955
Camber in prestressed concrete beams
| Engineering Index Backfile | 1961