十字交叉梁基础的设计计算方法

Design and Calculation Method of Cross Foundation

根据文克尔半无限长梁理论推导了十字交叉梁基础中柱荷载在纵横向的分配公式，讨论了基础底板宽度对基础梁刚度的影响以及基础梁刚度对十字交叉梁基础荷载分配的影响，建立了满足地基承载能力要求的基础底板宽度的计算公式，运用迭代法可以方便地求出基础底板的宽度，从而克服了工程设计中底板宽度与柱荷载分配不一致的缺点．

A formula for the column load distribution in vertical and horizontal directions in the cross foundation is derived according to Winkler’s theory of half infinite length beam.The effect of foundation plate width on foundation beam rigidity and the effect of foundation beam rigidity on load distribution in the cross foundation are discussed.The calculation formula of foundation plate width is set up which meets the demand of bearing capacity.Therefore,the foundation plate width can be found easily by use of iterative method.Thus,the discordance between the width and column load distribution which may occur in engineering design is solved.