Abstract:

 This paper lists the calculation formulas for crack width of concrete water tanks in Chinese standards GB/T 50010-2010 Code for Design of Concrete Structures, GB 50069-2002 Structural Design Code for Special Structures of Water Supply and Waste Water Engineering, American standard ACI 224R-01, and Saudi Arabian code SBC 304-AR/CR-2018, respectively. A comparative analysis of the differences in parameter values adopted by various national standards in calculating crack width is conducted, and the crack width limits under different environmental categories and exposure conditions are presented. Taking a project in Saudi Arabia as the example, this paper compares the strictness of these national standards in crack width calculation, and summarizes the crack control strategies and implementation key points of these countries from the perspectives of material selection and construction technology, aiming to provide reliable technical reference for the structural design of pool structures, the refined management and control of cracks, and the collaborative verification of multiple national standards in overseas engineering projects.

Key words: crack width')">

crack width, limit , control strategy