Abstract
During segmental construction of prestressed concrete cable-stayed bridges, the age-adjusted effective modulus method is used to perform the structural analysis. The effect of creep and shrinkage is converted into equivalent nodal loads by the linear creep theory. Loss of prestress and the effect of ordinary tendon are considered in the derivation. The effect of tendon is calculated using the limit equilibrium method. A calculation procedure is programmed via the above-mentioned method for analyzing construction process of cable-stayed bridges. The Hemaxi bridge, built recently in China is then taken as a case study. The study shows the measured data of elevations of some sections agrees well with the results of the calculation procedure. This demonstrates the proposed method is efficient and reliable.
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