Time Dependent Analysis of Partially Prestressed Composite Membersby Yun-Sool Joo, Univ of Nebraska, United States,
Maher K. Tadros, Univ of Nebraska, United States,
Abstract: The object of the paper is to develop a computer based procedure for analysis of members made up of precast prestressed concrete sections with cast-in-place topping. The procedure accounts for cracking under the weight of the cast-in-place topping and superimposed loads. Creep and shrinkage of concrete and relaxation of prestressed steel are taken into account in combination with the effects of cracking. Attempt is made to limit the input data to information commonly available to designers. Linear creep law is used, and time dependent effects, such as prestress losses and deflection growth, are automatically generated.
Subject Headings: Prestressing | Precast concrete | Reinforced concrete | Creep | Time dependence | Stress analysis | Prestressed concrete | Cast in place
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