钢筋混凝土变径桩的优化设计

Optimum design of reinforced concrete variable-section piles

结合处罚函数法及单纯形法对变径桩直径及扩大头直径进行优化设计,得出一定荷载下桩径的取值范围和最优结果,所编程序既可完成单一土层的优化,也可完成多种土层的优化,具有较高的理论意义和实用价值。

The optimization problem is solved by using an external penalty function and a simple method. The area of pile shaft and the optimal result on certain load have been obtained. So it has theoretical meaning and practical value to have optimum design on the diameters of the pile shaft and the expanded bodies. The optimal program is used not only in the single soil but also the multilayer soil. The practice shows that it has theoretical meaning and practical value.