摘要
通过桥墩基础与地基模型相互作用的滞回特性试验,获得墩顶力与位移的滞回及骨架曲线.采用静力Pushover法,对模型桥墩进行建模分析.分析中考虑地基土性质的复杂性以及滞回特性分析中要考虑土的加载、卸载以及再加载的本构关系.研究模型桥墩在周期性反复荷载作用下,进入非线性阶段的能量耗散、滞回特性、延性性能、破坏机理和破坏特征.
The hysteretic and skeleton curves of load-displacement relation in pier top are got through the mode-testing method of pile-soil interaction. The test model of pier is analyzed through static Pushover method. The complexity of subsoil property and constitutive relation of subsoil under reversal cyclic loading is considered. The model characteristics of energy dissipated, hysteretic property, ductility, failure mechanism and plastic energy of the pier under the horizontal reversal cyclic loading are researched.
出处
《兰州交通大学学报》
CAS
2008年第3期5-8,共4页
Journal of Lanzhou Jiaotong University
关键词
模型试验
滞回特性
桥墩
桩基础
model testing
hysteretic property
pier
pile foundation
