Analytical prediction of displacement capacity and length limits ofintegral bridges

摘要

In this research, analytical equations are developed to calculate the lateral displacementrncapacity and maximum length limits of integral bridges built on sand based on thernlow-cycle fatigue performance of the piles under cyclic thermal variations. For this purpose, arnlow cycle fatigue damage model is used for the piles to formulate the maximum cyclic curvaturesrnthey can sustain. Next, static pushover analyses of two typical integral bridges are conductedrnto study the effect of various geometric, structural and geotechnical parameters on theirrnperformance under cyclic thermal variations. Using the analyses results, equations are derived torndetermine the displacement capacity and maximum length limits of integral bridges.