柱下十字交梁基础的优化选型

The optimization selecting type of square crossing foundation under column

柱下十字交梁基础是多高层建筑结构常用的一种浅基础形式,其受力状态较为复杂,工程中根据经验进行两方向基础的选型,常导致两方向基底支反力不相等,易造成地基基础的不均匀沉降。本文以两方向基底反力相等为优化目标,研究分析了柱下十字交梁基础的优化选型问题,并计算总结了工程设计中的实用选型原则,对此类基础的合理设计具有重要的理论价值。

The square crossing foundation under column is common form of natural foundation in multistory and highrise building structure, its stress state is very complex. In engineering, the foundation types of two direction are selected by experiments, so the foundation reactions on two direction are different, and to cause uneven settlement of foundation. In the article, the equal foundation reaction on two direction is taken as optimization objective, the optimization selecting type of square crossing foundation under column are studied, and the practical selecting type methods in the engineering design are obtained by drawing up program. So the important theory basis is provided for reasonable design of square crossing foundation.