柱下独立基础加防水板设计方法研究

Study on design method of single-footing with water-proof slab under column

柱下独立基础加防水板是一种特殊的筏板基础。在分析基础受力过程中,将此类基础分解为防水板和独立基础分别计算,再将计算结果叠加,得到基础的内力结果。此方法既能考虑独立基础的刚度和支座的影响又简单易行,可用于基础的结构设计,同时建议独立基础及防水板设计时应进行混凝土裂缝的验算。研究了上述方法在不同地基条件下的适应性,对可能出现的情况提出建议。

Single-footing with water-proof slab under column is a special type of raft foundation. Through the stress analysis,the foundation was decomposed into water-proof slab and single-footing respectively,and then the calculation results were superposed to get the force results. This method can not only consider the stiffness of the single-footing and the influence of the abutment,but also can be used in the structural design of the foundation simply. At the same time,it is suggested that the calculation of concrete cracks should be carried out in the design of single-footing with water-proof slab. The adaptability of this method under different ground conditions was studied,and some suggestions were given for the possible situation.