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上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (1): 105-110.

• 土木工程 • 上一篇    

碳纤维布加固混凝土梁支座负弯矩区的试验

叶红义1,陈永秀2   

  1. 1.上海大学 土木工程系，上海 200072; 2.上海厦安工程科技有限公司，上海 200092
  • 收稿日期:2007-09-05 出版日期:2009-02-21 发布日期:2009-02-21
  • 通讯作者: 叶红义(1981～)，男，硕士研究生，研究方向为混凝土结构优化及混凝土加固. E-mail:yhy2018@sina.com
  • 作者简介:叶红义(1981～)，男，硕士研究生，研究方向为混凝土结构优化及混凝土加固.

Test of Strengthening Negative Moment Area of Reinforced Concrete Continuous Beams with Carbon Fiber Reinforced Polymer

  1. 1. Department of Civil Engineering, Shanghai University, Shanghai 200072, China;
    2. Shanghai SHINE Engineering Science and Technology Co., Ltd., Shanghai 200092, China
  • Received:2007-09-05 Online:2009-02-21 Published:2009-02-21

PDF

1284

被引次数

2

摘要：

在梁顶面粘贴碳纤维布对框架梁进行负弯矩加固时,碳纤维布要受到柱子隔断而没有足够的锚固.针对此问题,通过试验研究,分析比较了几种不同碳纤维布粘贴方式的加固效果,考察支座处离连续梁纵向轴线距离的不同部位的碳纤维应变变化，从而考察翼板不同部位的碳纤维布对结构承载力提高的贡献差异，得到了有意义的结论.

关键词: 碳纤维布；钢筋混凝土连续梁；加固；负弯矩

Abstract:

When strengthening the negative moment area of a reinforced concrete (RC) beam, the presented anchorage would be insufficient because the carbon fiber reinforced polymer (CFRP) strips will be cut-off at the place of column. For this reason, strengthening effectiveness of several bonding methods is discussed in this paper based on tests. The supports of continuous beam of the vertical axis from different parts of the carbon fiber strain changes has been studied. By inspection of wing plates in different parts of the CFRP structural capacity increase of the contribution of difference, useful conclusions are obtained.

Key words: carbon fiber reinforced polymer (CFRP); reinforced concrete (RC) continuous beams; strengthening; negative moment area

中图分类号: 

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