HRB400级钢混凝土梁裂缝宽度试验

肖红菊; 韩菊红; 张雷顺; 毕苏萍

doi:10.13204/j.gyjz200708014

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HRB400级钢混凝土梁裂缝宽度试验

doi: 10.13204/j.gyjz200708014

1.
1. 郑州大学环境与水利学院郑州 450002;
2.
2. 郑州大学土木工程学院郑州 450002

基金项目:

河南省高等学校创新人才培养工程(2005);河南省科技攻关项目(0496050905)

详细信息

作者简介:
肖红菊女 1980 年9月出生硕士研究生现在铜陵学院土木系工作 E-mail: xiaohongju@gs.zzu.edu.cn

计量
- 文章访问数: 42
- HTML全文浏览量: 3
- PDF下载量: 50
- 被引次数: 0
出版历程
- 收稿日期: 2006-03-16
- 刊出日期: 2007-08-20

THE EXPERIMENTAL RESEARCH ON CRACK WIDTH ON HRB400 STEEL BARS REINFORCED CONCRETE BENDING BEAMS

1.
1. College of Environment and Hydraulic Engineering,Zhengzhou University Zhengzhou 450002;
2.
2. College of Civil Engineering,Zhengzhou Univesity Zhengzhou 450002

摘要

摘要: 对7根HRB400级钢筋混凝土梁和2根HRB335级钢筋混凝土简支梁进行抗弯性能试验,观测并记录了梁的裂缝发展过程和裂缝宽度。通过对试验结果的分析表明,承载力相同的HRB400级钢筋混凝土梁正常使用状态下的裂缝宽度大于HRB335级钢筋混凝土梁。经分析对比,提出梁正常使用状态下裂缝宽度的公式,对裂缝宽度实测值、建议公式计算值和现有规范公式计算值的比较表明,建议公式计算值相对试验值有一定富余。
- HRB400级钢筋 /
- 混凝土梁 /
- 裂缝间距 /
- 裂缝宽度 /
- 正常使用状态
Abstract: Based on the experimental research on 7 simple beams reinforced with HRB400 steel bars and 2 beams reinforced with HRB335 steel bars,the development of crack of the testing members is observed and crack width is written down in different loads and the testing results are discussed and analyzed.The results show that the crack with of HRB400 steel bars reinforced concrete beams is bigger than that of HRB335 steel bars reinforced concrete beams with the same bearing capacity. A formula according to the testing results of crack wideth under the state of service ability is deduced.The testing results of crack width are compared with the calculation results of crack width using the code formula and the deduced formula,the results show the calculation results of crack width using the deduced formula is safe.
- HRB400 steel bar /
- concrete beam /
- crack spacing /
- crack width /
- state of service ability