A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
This report presents a survey of the literature concerning the prestress loss characteristics of post-tensioned concrete structural members. Findings by previous researchers related to time-dependent loss components (such as creep and shrinkage of concrete and relaxation in steel), the effect of temperature, and additional losses due to post-tensioning (namely friction and anchorage take-up) are presented and discussed. Specification and code provisions currently in use are reviewed, and the inadequate nature of such provisions is cited. The need for further research is indicated in the area of prestress losses in post-tensioned concrete structural members.
This report presents a survey of the literature concerning the prestress loss characteristics of post-tensioned concrete structural members. Findings by previous researchers related to time-dependent loss components (such as creep and shrinkage of concrete and relaxation in steel), the effect of temperature, and additional losses due to post-tensioning (namely friction and anchorage take-up) are presented and discussed. Specification and code provisions currently in use are reviewed, and the inadequate nature of such provisions is cited. The need for further research is indicated in the area of prestress losses in post-tensioned concrete structural members.
State of the Art Report on Prestress Losses in Post-Tensioned Members
1975
66 pages
Report
No indication
English
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