高预应力度混凝土梁抗震性能探讨

Studies on seismic performance of prestressed concrete beams with high PPR

基于低周反复荷载试验,对高预应力度混凝土梁的受力过程、破坏形态、滞回曲线、骨架曲线、恢复力模型、变形恢复能力、延性、刚度退化等抗震性能进行了较深入的研究分析。研究表明:高预应力度混凝土梁具有优良的变形恢复能力以及较好的位移延性,总体上抗震性能较好。

Based on the experiments under low reversed cyclic loading, failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility and rigidity degeneration of prestressed concrete beams with high PPR are studied systematically. And studies show that prestressed concrete beams with high PPR have good displacement restoring capacity, better ductility and seismic performance as a whole.