横向受荷桩的最轻重量设计
Laterally Loaded Pile's Minimum Weight Design
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摘要: 尝试建立变截面桩的挠曲线微分方程,继而提出了变截面优化桩的概念,并给出了端承桩的一种优化算法。还以圆截面大孔径挖孔灌注桩为例,在桩顶受竖向荷载、水平横向力及弯矩作用时,进行了最轻重量设计。通过计算表明,使用变截面优化桩可使桩的体积减少30%以上。Abstract: In the paper,a varied cross section pile is taken into consideration.The pile is subjected to horizontal force,bending moment and vertical load.With the finite element method and non-linear programming,the optimal solution to the relationship between the pile's diameter and depth is obtained.As an example the paper shows that minimum weight pile can save up to 49% of the concrete used.
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