(福建农林大学交通学院 福州 350002)
【提要】 将交叉条形基础视为由若干带矩形侧翼的纵向条形基础组成，忽略次要影响因素进行分析，得到基于文克勒地基模型的竖向荷载简化分配公式，进而提出“逐次逼近法”及其计算公式。经算例验证，方法切实可行，结果正确合理，经系数化处理的计算公式简便实用，可供设计采用。
【关键词】 交叉条形基础 基底尺寸 逐次逼近法
Simplified Method to Calculate Base Area of Gridmat Foundation/Wu Nengsen (Traffic of College, Fujian Agricultureforestry University, Fuzhou 350002, China)
Abstract:The constitution that a gridmat foundation is composed of several lengthwise s
trip foundations with a few flank wings is presented. Based on the Winkler's ground model, a simplified formula for allocating vertical loads is derived, in which some minor factors are neglected. Then the progressive approach method and its formulas are brought out.Through an engineering example,it is testified that the method and the formulas are feasible and convenient for engineering design.
Keywords:gridmat foundation; sizes of foundation base; progressive approach method