【摘要】 采用拟静力试验对黄土地基-群桩基础-重力式桥墩进行了大比例尺模型试验研究.通过在墩顶施加水平往复荷载,获得了桩、土及桥墩整体结构的滞回曲线及骨架曲线,并指出了该骨架曲线可简化为3部分组成,同时也探讨了低承台桩基础的破坏机理及耗能能力.更多还原

【Abstract】 A large scale model test is performed about the loess sub-grade-pile group-gravity bridge pier by using pseudo-static test.By means of imposing horizontal reversal cyclic loading on the top of pier,the hysteretic curve and the skeleton curve on the whole structure of pile-soil-pier interaction are obtained and the view that the skeleton curve is simply composed of three segments is presented.At the same time fracture mechanism and energy dissipation of low capped pile foundation are further discussed.更多还原