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STUDY ON THE LEAST RATIO OF THE NONPRESTRESSED REINFORCEMENT IN PARTIALLY PRESTRESSED CONCRETE BEAMS WITH HRB500 STEEL BAR
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摘要: 推导了部分预应力钢筋混凝土受弯构件的最小配筋率计算公式，并结合我国各行业规范对非预应力钢筋最小配筋率的规定，对部分预应力梁中的HRB500级钢筋的最小配筋率提出建议，为将HRB500级钢筋列入我国混凝土结构设计规范提供参考。
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关键词:
- HRB500级钢筋 /
- 部分预应力钢筋混凝土梁 /
- 受弯构件 /
- 脆性破坏 /
- 最小配筋率
Abstract: The calculation formula of the least ratio of the nonprestressed reinforcement in partially prestressed concrete beams with HRB500 steel bar is deduced.And some suggestions on the least ratio of the nonprestressed reinforcement in partially prestressed concrete beams with HRB500 steel bar are proposed based on each industry standard of the least ratio of the nonprestressed reinforcement at home.Which provided a reference for using HRB500 steel bar in China code for design of concrete structures. -
GB 500102002混凝土结构设计规范[S]; [2] 焦彬如.预应力和部分预应力混凝土受弯构件最小配筋及其抗裂性的简捷计算方法[J].建筑结构学报,1993,14(3)∶53-62; [3] 吴京,郑文忠.预应力混凝土压弯构件受拉筋最小配筋的计算[J].工业建筑,1995,25(5)∶53-56; [4] 袁伦一.钢筋混凝土受弯受压构件及预应力混凝土受弯构件最小配筋百分率的说明和看法[J].公路,2007(1)∶62-67; [5] 徐有邻,王晓峰,刘刚,等.混凝土结构理论发展及规范修订的建议[J].建筑结构学报,2007(2):1-6; [6] 于秋波.HRB500钢筋混凝土受弯构件最小配筋率的探讨[J].工业建筑,2009,39(1):90-92. -
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