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Study on Deflection of FRP Sheet Pile Wall By Numerical Simulation Analysis Method

机译：数值模拟分析方法研究FRP板桩壁的挠度

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摘要

Fiber Reinforced Polymer (FRP) sheet pile offered great potential for waterfront structural applications due to their excellent corrosion resistance and high strength weight ratio. Numerical analysis method was employed to calculate and analyze the deflection of FRP composite sheet piles. Different conditions were considered, such as flexural rigidity of the pile, rigidity of the anchor, position of the anchor, friction angle and surcharge on the surface of the backfill etc, and deflection properties were obtained. The results showed that the increase ratio of the maximum deflection was evident when the flexural rigidity of the pile EI was rather smaller, and the large anchor rigidity can reduce the deflection of sheet piles. With the increase of the friction angle δ, horizontal displacement decreased. When the angle of friction δ was larger, the variation ratio of deflection was smaller. The deflection had linearly proportional increase with the increase of the surcharge, and the increase ratio was nearly 2mm/kPa. For FRP composite sheet pilings, the deflection-based design method should be adopted.
机译：由于其优异的耐腐蚀性和高强度重量比，纤维增强聚合物（FRP）板桩由于其优异的耐腐蚀性和高强度重量而提供了巨大的水域结构应用潜力。使用数值分析方法来计算和分析FRP复合板桩的挠度。考虑了不同的条件，例如桩的弯曲刚度，锚的刚性，锚的位置，回填等表面上的摩擦角和附加费，以及偏移等。结果表明，当桩EI的抗弯刚度相当较小时，最大偏转的增加比率显而易见，并且大的锚刚度可以减少片材桩的偏转。随着摩擦角δ的增加，水平位移降低。当摩擦角δ更大时，偏转的变化率较小。随着附加费的增加，偏转随着成比例的增加，增加的比例接近2mm / kPa。对于FRP复合板桩，应采用基于偏转的设计方法。

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