粘钢加固重力式桥墩的抗震性能试验研究

摘要

Two pier models whose reinforcement ratios are 0. 2% and 0. 4% respectively and stirrup ratio is 0. 2% are made. First, the pseudo-static destructive test of the pier models is conducted, then the models are strengthened by gluing steels and the pseudo-static destructive test is done agaia The failure modes, carrying capacity, ductility, energy dissipation capacity and rigidity degeneration of the original pier models and the strengthened ones are compared and analyzed in detail, and the fact that the seismic behavior of railroad bridge with gravity piers is significantly improved by gluing steels is validated.%制作配筋率0.2％和0.4％、配箍率0.2％的两个模型墩,先完成两模型墩的拟静力破坏试验再对其粘钢加固,并进行加固后模型墩的拟静力破坏试验.详细比较分析加固前后模型墩的破坏形态、承载力、延性与耗能能力、刚度退化等特性,验证粘钢加固能明显提高重力式桥墩抗震性能.