承台类似于深梁,应按深梁设计。抗冲切是抗剪切的一个特例,两者的计算可以统一。在设计承台时,应考虑外力在承台内扩散的有利作用。提出了相应的计算公式,公式与规范及现行的计算方法一致,但均较节约,特别是在跨厚比较小时更为显著。 Subbase similar to deep beams, should be deep beam design. Punching shear is a special case of shear, the calculation of the two can be unified. In the design of cap, should consider the external force in the cap proliferation of the favorable role. The corresponding calculation formulas are proposed. The formulas are in accordance with the specifications and the current calculation methods, but both are more economical, especially when the cross-sectional thickness is relatively small.