A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The reports a laboratory study of the deflection characteristics of prestressed concrete beams as affected by creep and shrinkage. This is of interest since the Building Code Requirements for Reinforced Concrete (ACI 318-63) requires consideration of these factors but does not prescribe a method for calculation. The deflections of prestressed concrete beams were determined before and after prestress transfer and after a period of live loading. At the same time creep and shrinkage data were taken on concrete prisms and cylinders. The accumulated data was then compared to the deflections predicted by two theoretical methods of analysis. It is concluded that the deflection during all stages of loading of prestressed concrete beams can be predicted with reasonable accuracy using the theoretical methods described and the creep coefficients and the shrinkage potentials obtained from companion specimens. (Author)
The reports a laboratory study of the deflection characteristics of prestressed concrete beams as affected by creep and shrinkage. This is of interest since the Building Code Requirements for Reinforced Concrete (ACI 318-63) requires consideration of these factors but does not prescribe a method for calculation. The deflections of prestressed concrete beams were determined before and after prestress transfer and after a period of live loading. At the same time creep and shrinkage data were taken on concrete prisms and cylinders. The accumulated data was then compared to the deflections predicted by two theoretical methods of analysis. It is concluded that the deflection during all stages of loading of prestressed concrete beams can be predicted with reasonable accuracy using the theoretical methods described and the creep coefficients and the shrinkage potentials obtained from companion specimens. (Author)
Deflections of Prestressed Concrete BEAMS
J. R. Long (author)
1966
88 pages
Report
No indication
English
Excessive Deflections of Prestressed Concrete Bridges
| British Library Conference Proceedings | 1996
Prediction of Long-Term Deflections for High-Speed Railway Prestressed Concrete Beams
| Online Contents | 2016
Short- and Long- Term Deflections in Reinforced, Prestressed, and Composite Concrete Beams
| British Library Online Contents | 2007
Prediction of Long-Term Deflections for High-Speed Railway Prestressed Concrete Beams
| Online Contents | 2016
Short- and Long-Term Deflections in Reinforced, Prestressed, and Composite Concrete Beams
| Online Contents | 2007