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基于桩基承台的空间桁架传力机理，进行了承台斜压杆应力场的模拟试验．分析了承台及其斜压杆承载力的影响因素，导出斜压杆承载力计算公式，并提出了桩基承台和筏板的空间桁架设计方法及建议．
Based on the force transfer mechanism of space truss on pile foundation platform, the simulation experiment of the stress field of the inclined bar of the platform was carried out. The influencing factors of the bearing capacity of the cap and its inclined bar were analyzed, and the calculation formula of the bearing capacity of the inclined bar was derived. The design method and suggestion of the space truss for pile caps and rafts were proposed.