中美规范钢筋混凝土水池裂缝控制方法对比

Comparison of Crack Control Methods for Reinforced Concrete Pools in Chinese and American Codes

裂缝控制是钢筋混凝土水池结构设计的关键,然而国内外规范对裂缝的控制方法存在差异,为便于海外工程设计,本文介绍了中美两国规范的裂缝控制方法,从裂缝计算荷载组合、裂缝控制指标和影响因素几个方面进行了对比,并结合算例进行分析。结果表明,美国ACI318规范裂缝控制方法不适用于水池结构,中国规范较ACI350规范裂缝控制方法严格,但较ACI224规范宽松。

Crack control is the key to the structural design of reinforced concrete pools,while there are differences in crack control methods of domestic and foreign codes.In order to facilitate the overseas engineering design,this paper introduced the crack control methods of Chinese and American codes,and the load combination,control index and influencing factors were compared to analyze the crack control methods combined with an example.The results showed that the crack control method in ACI318 is not suitable for pool structures,Chinese codes are stricter than ACI350,but more relaxed than ACI224 in terms of crack control.