【摘要】 在分析目前常规设计存在的一些缺陷基础上， 给出一种独立基础优化设计新方法， 有效地解决了现行规范存在的诸如强度和变形影响无法同时考虑等问题。导出了偏心荷载作用下的独立基础底面尺寸设计及独立基础设计的优化数学模型， 并编制了求其优化解的复合形法和罚函数法的最优化算法程序及独立基础设计绘图程序。通过算例分析表明，将最优化方法用于基础设计会产生较大的经济效益。更多还原

【Abstract】 On the basis of analysing the defaults occuring in normal design,a new method of optimum design for individual foundation is put forward in this paper.This method can solve some problems successfully such as the strengh and deformation can be considered at the same time,which cannot be done in the current specification.The optimal mathematical models of individual foundation design and the bottom surface dimension design under eccentric load are derived.The optimal solution is decided by method of optimization and the method selected is penalty function and complex method, and the programs of optimum algorithm have been compiled and design and drawing of individual foundation have been completed. The final result suggests that a fair-sized economic efficiency can be obtained by using optimum method for foundation design.更多还原