桩基加防水板结构的探讨与应用

Discussion and application of waterproof board with pile foundation

分析桩基加防水板结构在不同荷载水平的水浮力作用下结构的受力特点。结合工程实践中运用有限元软件SAP2000对地下室底板的分析过程,讨论可行的设计方法及所需注意的要点。分析结果表明,抗拔桩的抗拔刚度对底板弯矩计算值影响较大;采用倒楼盖计算假定的模型计算的底板跨中弯矩偏小。

The mechanical characteristics of the waterproof board structure with pile foundation were analyzed under different load levels of buoyancy. In combination with the analysis process of the basement floor by using the finite element software SAP2000 in the engineering practice, the feasible design method and the key points to be noticed were discussed. The analysis results show that the pullout stiffness of uplift pile has a great influence on the bending moment of the bottom plate; The moment at midspan of the basement floor calculated from the model that based on the assumption of inverted floor is less than normal.