The vertical load did not help to reduce the lateral displacement at the pile top anymore when it was applied after the lateral load.
先施加水平荷载再施加竖向荷载时,竖向荷载不再起到减小水平荷载作用下桩顶侧移的作用。
参考来源 - 竖向及水平荷载加载水平、顺序对单桩承载力的影响There are many problems on pile dynamicresponse to study at present. The paper studies lateral load behavior ofpile by performing the shaking table tests.
目前国内外对液化土中桩基动力响应问题的研究还存在着许多问题，本文针对液化土中桩基水平承载特性进行了振动台模型试验。
参考来源 - 液化土中桩基水平承载特性的振动台试验研究The result shows that the lateral load pattern can lead to obvious difference of pushover analysis results.
研究了侧向力分布模式对分析结果的影响,结果表明侧向荷载的型式会使计算结果产生明显的差异。
参考来源 - 不规则建筑结构地震反应分析与性能评估的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The behavior of pile under lateral load is a very complex process of pile-soil interaction.
桩在水平荷载作用下的受力性状是一个复杂的桩土相互作用过程。
This paper also analyses the characteristics and influential factors of single pile under lateral load.
并且研究了单桩在水平荷载下的特性以及影响单桩水平承载力的因素。
Sometimes, one type of lateral load mechanism is used in one direction while another is used in the perpendicular direction.
有时，一种类型的侧向载荷机制作用于一个方向，而另一种作用于垂直方向。
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