HRBF500钢筋C100混凝土梁抗剪性能试验研究

叶献国; 王程成; 种迅; 蒋庆; 黄小坤; 刘刚

doi:10.13204/j.gyjz201207013

HRBF500钢筋C100混凝土梁抗剪性能试验研究

doi: 10.13204/j.gyjz201207013

叶献国^1,2,
王程成¹,
种迅^1,2,
蒋庆¹,
黄小坤³,
刘刚³

1.
1 合肥工业大学土木与水利工程学院合肥 230009;
2.
2 安徽土木工程结构与材料省级实验室合肥 230009;
3.
3 中国建筑科学研究院北京 100013

基金项目:

十一五国家科技支撑课题高强高性能混凝土结构性能研究(2008BAE61B05-04)

详细信息

作者简介:
叶献国，男，1954年出生，教授，博士生导师。Email：yexg428@yahoo.com.cn

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出版历程
- 收稿日期: 2012-02-16
- 刊出日期: 2012-07-20

EXPERIMENTAL STUDY ON SHEAR BEHAVIOR OF BEAM WITH C1 00 CONCRETE AND HRBF500 GRADE REBAR

1.
1. School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;
2.
2. Anhui Provincial Civil Structural and Material Laboratory,Hefei 230009,China;
3.
3. China Academy of Building Research,Beijing 100013,China

摘要

摘要: 通过对4根配箍率不同,剪跨比为3的高强钢筋C100混凝土梁的抗剪试验,观测梁的破坏过程及裂缝发展形态;并根据试验结果数据分析其抗剪承载力;最后将试验值与采用GB 50012010《混凝土结构设计规范》公式计算的计算值进行了对比。结果表明,高强钢筋C100混凝土梁抗剪承载力稳定,破坏形态与普通混凝土梁相似;适量提高配箍率,可以有效地控制斜裂缝的开展,提高梁的抗剪承载力;对于剪跨比为3的高强钢筋C100混凝土梁来说,GB 50012010《混凝土结构设计规范》公式用于无腹筋梁抗剪计算是偏高的,而用于有腹筋梁抗剪设计是偏保守的。
- 高强钢筋 /
- 高强混凝土 /
- 配箍率 /
- 静力试验 /
- 抗剪承载力
Abstract: Four beams with C1 00 high-strength concrete and HRBF 500 grade rebar and different stirrup ratio weretested, with the shear-span ratio being kept around 3. The development form of the crack and failure process of beamswere observed. According to the data of the test, the shear capacity of beams was analyzed. At last, the experimentalresults were compared with the calculation values by current code. The testing results indicate that the beams with C1 00 high-strength concrete and HRBF 500 grade rebar could work well and its failure modes were similar to theordinary concrete beam. Improving stirrup ratio appropriately was an effective way to improve the shear bearingcapacity and control the diagonal crack development of beams. When shear-span ratio is 3, the current Chinese codeformula used for beam without web reinforcement is not safe, and used for beam with web reinforcement isconservative.
- HRBF 500 grade rebar /
- high-strength concrete /
- stirrup ratio /
- static test /
- shear bearing capacity