According to the complex behavior of strip foundation beams of pile, the internal stress distribution of foundation beams is influenced by the indetermination and random of the bearing capacity of pile foundations under the beams.

• 摘要在考虑基桩承载力差异性和桩土共同工作等因素的基础上引入随机优化分析理论，提出了基桩承载力随机生成的计算机方法，并采用遗传算法对承台梁内力进行随机分析。