桩基承台设计方法探讨

Discussion on design of piles foundation platform

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。

The platform is similar to the deep beam,the design of which should accord with the design of the deep beam.The punching resistance is the special case of the shearing resistance,so the calculation of these two can be unified.The positive effect of external force diffusion on the platform should be considered when the platform is designed.The relevant formulaes which are uniform with the criterion and the current calculation method were presented,all of which are economical,and especially obvious for those with less span.