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对使用上需要限制裂缝宽度的钢筋混凝土结构构件(例如有色冶金企业的电解车间、净液车间及其他有侵蚀性介质车间的结构构件),应进行裂缝宽度验算。钢筋混凝土结构设计规范(TJ10-74)规定了受弯和轴心受拉构件最大裂缝宽度验算公式。但是,在工程设计中,当进行限制裂缝宽度的配筋设计时,如按照规范的公式进行截面的最大裂缝宽度验算,一般
For the use of reinforced concrete structural members that require a limited crack width (for example, non-ferrous metallurgical enterprises, electrolysis workshops, net solution workshops, and other structural members of aggressive media workshops), crack width verification should be performed. The Design Code for Reinforced Concrete Structures (TJ 10-74) specifies the formula for checking the maximum crack widths of bending and axial tension members. However, in the engineering design, when the reinforcement design with a limited crack width is performed, the maximum crack width of the section is checked according to the formula of the norm.