《给水排水工程结构设计手册(第二版)》中给出了力矩分配法计算钢筋混凝土敞口平底圆形水池的方法,该方法概念清晰明确,其中一些关键参数的选择对计算结果有决定性影响,本文介绍了壁面温差参数△t的重要作用和取值讨论,并补充了池壁环向抗裂计算过程,具有一定的工程应用价值。 The method of moment distribution method for calculating the open circular flat pool with reinforced concrete is given in “Design Manual of Water Supply and Drainage Engineering Structure (Second Edition)”. The concept of the method is clear and definite. Some of the key parameters have a decisive influence on the calculation results This article introduces the important role and value discussion of the temperature difference parameter △ t of the wall surface, and complements the calculation of the circumferential cracking resistance of the wall, which has certain engineering application value.