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基于Unit Cells和剪切位移原理, 引入镜像桩-桩的弹性耦合原理, 建立了考虑大桩群相互作用的基桩荷载传递剪切位移单元模型；并引入桩土剪切位移与相对滑移叠加的广义剪切位移概念, 推导出了基桩单元模型的广义剪切位移解析表达式, 提出了根据桩端位移协调条件迭代求解的方法。通过算例分析, 揭示了疏桩间距、荷载水平对疏桩地基减沉效果的重要影响, 阐明了疏桩与基体的荷载位移传递特征, 以及桩顶相对位移...
Shaking table test of the effects of multi-unit particle dampers attached to an MDOF system under earthquake excitation
analytical modeldiscrete element methodimpactparticle damperpassive vibration controlshaking table test
2014/4/10
This paper presents the results of an experimental and analytical/computational study of the performance of multi-unit particle dampers with an MDOF system. A series of shaking table tests of a three-...
Distributions of Instantaneous Unit Hydrograph Peak Characteristics for Small River Networks
Instantaneous unit hydrograph river network width function translation routing
2009/10/14
Diameter-conditioned distribution functions of peak ratio (\peak"/diameter) and position ratio (\time to peak"/diameter) of topological width functions of small networks were obtained analytically. He...