方敏华, 刘立新

（郑州大学综合设计研究院，郑州 450002）

［摘要］讨论高强钢筋混凝土结构设计中的钢筋锚固长度和裂缝宽度控制等问题，对3个工程实例分别采用500,400,335MPa级热轧带肋钢筋进行设计，对不同强度等级钢筋的用量进行了分析和比较，得出了用400MPa级钢筋代替335MPa级钢筋用量可减少约10%、用500MPa级钢筋代替335MPa级钢筋用量可减少约20%的结论，并提出了高强钢筋工程设计和应用的建议。

［关键词］高强钢筋；钢筋用量；锚固长度；裂缝宽度

中图分类号：TU375      文献标识码：A      文章编号：1002-848X(2013)10-0059-05

 

Design of concrete structures with high strength reinforcement and analysis of the reinforcement amount in engineering projects

Fang Minhua, Liu Lixin

(Zhengzhou University Multi-functional Design and Research Academy, Zhengzhou 450002, China)

 

Abstract: The anchorage length and the control of crack width in reinforced concrete structures with high strength reinforcement were discussed. For 3 engineering projects, hot-rolled ribbed steel bars of 500MPa, 400MPa and 335MPa grade were used respectively. The reinforcement amount of different strength were analyzed and compared. The results show that the reinforcement amount may decrease about 10% for using reinforcement of 400MPa instead of steel bars of 335MPa. When using 500MPa grade steel bars to replace the 350MPa ones, the reduction can be 20%. According to the results, suggestions for the design and application of the high strength reinforcement in engineering were also given.

Keywords: high strength reinforcement; reinforcement amount; anchorage length; crack width

*国家科技支撑计划项目（2008BAE61B04）。

作者简介：方敏华，学士，高级工程师，Email：fangminhua@126.com。

 

参考文献

［1］刘立新，杜朝华. 500MPa级钢筋混凝土柱受压性能试验研究［J］.公路交通科技: 应用技术版，2011(10),241-245.

［2］RISN-TG 007—2009 热轧带肋高强钢筋在混凝土结构中应用技术导则［S］. 北京：中国建筑工业出版社，2010.

［3］GB 50010—2010 混凝土结构设计规范［S］. 北京：中国建筑工业出版社，2011.