摘要
本文分析了现行水工钢筋混凝土设计规范SD20-78最小配筋率条文中存在的问题,对国内外最小配筋率取值作了详细评述。讨论了确定最小配筋串的原则,在此基础上提出了具体改进建议。按建议的最小配筋率取值方法,可不致发生截面尺寸越大混凝土强度越高时所需配筋量反而越多的现象,也可不再采用少筋混凝土设计理论,并仍能满足控制裂缝开展的要求。
The problems existing in the provisions about the minimum reinforcement ratio (?)_(min) in the present Design Code of Hydro-engineering Reinforced Concrete Structures(SDJ20-78)are analysed. The values of (?)_(min) suggested by various national and foreign design codes are thoroughly reviewed and the principles to determine (?)_(min) are discussed.On this basis,feasible suggestions are made and the crack-pattern of the concrete components reinforced according to our suggestions are analysed.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1992年第1期44-51,共8页
Journal of Hohai University(Natural Sciences)
