| 碳纤维布加固混凝土梁时效变形分析 |
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| 引用本文： | 曹国辉,陈健琼.碳纤维布加固混凝土梁时效变形分析[J].湖南城市学院学报(自然科学版),2005,14(2):4-6. |
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| 作者姓名： | 曹国辉 陈健琼 |
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| 作者单位： | 1. 湖南城市学院,土木工程学院,湖南,益阳,413000
2. 湖南城市学院,建筑与规划设计研究院,湖南,益阳,413000 |
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| 基金项目： | 益阳市科技计划项目(益科字第[2004]22号) |
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| 摘 要： | 按换算截面法推导了CFRP加固混凝土梁时效变形计算公式．在此基础上编制了预测收缩、徐变变形的分析计算程序，考虑了混凝土强度等级、加载应力、配筋率的变化、混凝土开裂、混凝土收缩徐变等因素的影响，与其它计算方法比较表明，该方法能较精确预测CFRP加固混凝土梁的时效变形。
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| 关 键 词： | 碳纤维布 加固措施 换算截面法 混凝土梁 受压钢筋 |
| 文章编号： | 1672-7304(2005)02-0004-03 |
| 修稿时间： | 2005年3月10日 |
Analysis on Time-dependence Deformation of Concrete Beams Strengthened with CFRP Laminates |
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| CAO Guo-hui,CHEN Jian-qiong.Analysis on Time-dependence Deformation of Concrete Beams Strengthened with CFRP Laminates[J].Journal of Hunan City University:Natural Science,2005,14(2):4-6. |
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| Authors: | CAO Guo-hui CHEN Jian-qiong |
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| Institution: | CAO Guo-hui1,CHEN Jian-qiong2 |
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| Abstract: | In this paper,formulas are deduced to calculate time-dependence deformation based on transformed section method,and an analytical procedure is given forecast the shrinkage and creep deformation,it considering such factors as concrete strength,stress,reinforcement ratios,concrete cracking,shrinkage and creep.The analytical method may be precise to predict and time dependment deformation of concrete beams strengthened with CFRP laminates. |
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| Keywords: | Carbon fiber-reinforced plastic laminates strengthened transformed section method shrinkage creep |
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