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首页> 外文期刊>Arabian Journal for Science and Engineering >Lateral Bearing Behaviors of Slightly Inclined Single Pile with Different Pile Head Restraint Under Combined Loads
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Lateral Bearing Behaviors of Slightly Inclined Single Pile with Different Pile Head Restraint Under Combined Loads

机译：组合负载下不同桩头限制的略带侧桩横向轴承行为

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For a laterally loaded pile with its head keyed into the cap, pile head actually rotates in spite of the restraint of the cap.Being aware of this fact, some parameters were put forward to represent the degree of rotational restraint at pile top, andmany calculation methods of lateral pile responses were then developed. However, the presented solutions are only for pilesunder pure lateral loads. In fact, they are usually under the vertical loads simultaneously, caused by the weights of themselvesand superstructures. Besides, the slight initial inclination of pile shaft is inevitable in engineering. Some researchers raisedsolutions of lateral responses of the slightly inclined single pile under combined vertical and lateral loads, but the partiallyfixed-head condition and the elastoplasticity of soil were not considered. In this study, elastoplastic semi-analytical solutionsof lateral responses of the slightly inclined single pile under combined vertical and lateral loads were deduced, in which therotational restraint coefficient was used to represent the degree of rotational restraint at pile top, and the three-parameter modelof the coefficient of subgrade reaction was employed. The computer program was developed thereafter. The effectivenessand advantage of the obtained solutions were validated by the comparison among existing solutions, presented solutionsand model test results. Sensitivity analysis was carried out for parameters such as the initial inclination angle of pile shaft,the rotational restraint coefficient, and the vertical load. Eventually, effects of each parameter on lateral pile responses werepresented and discussed.
机译：对于横向装载的桩，其头部键入盖子，桩头尽管盖帽束缚，但仍然旋转。意识到这一事实，提出了一些参数，以代表桩顶处的旋转抑制程度然后开发出许多横向桩响应的计算方法。但是，所提出的解决方案仅适用于桩在纯侧向载荷下。事实上，它们通常同时在垂直载荷下，由自己的重量引起和上层建筑。此外，工程中桩轴的轻微初始倾斜是不可避免的。一些研究人员提出垂直和横向载荷下略微倾斜单桩横向响应的解决方案，但部分未考虑固定部件和土壤的弹性塑性。本研究中，弹塑性半分析解决方案推导出在组合垂直和横向载荷下略微倾斜单桩的横向响应，其中旋转约束系数用于表示桩顶的旋转程度和三参数模型使用路基反应系数。此后开发了计算机程序。成效通过现有解决方案的比较验证所得溶液的优势，提出了解决方案和模型测试结果。对桩轴初始倾斜角等参数进行敏感性分析，旋转约束系数和垂直载荷。最终，每个参数对侧桩反应的影响是提出并讨论过。

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