内嵌CFRP板条加固混凝土梁试验研究

丁亚红; 曾宪桃; 王兴国

doi:10.13204/j.gyjz200607024

内嵌CFRP板条加固混凝土梁试验研究

doi: 10.13204/j.gyjz200607024

1.
1. 河南理工大学土木工程学院焦作 454003;
2.
2. 中南大学土木工程学院长沙 410075

基金项目:

河南省教育厅自然科学研究项目(编号:200656003);河南理工大学自然(青年)基金项目(编号:P050303)

详细信息

作者简介:
丁亚红女 1973年12月出生硕士讲师 E-mail:dingyahong@hpu.edu.cn

中图分类号: TU375.1
计量
- 文章访问数: 74
- HTML全文浏览量: 8
- PDF下载量: 75
- 被引次数: 0
出版历程
- 收稿日期: 2006-02-13
- 刊出日期: 2006-07-20

THE EXPERIMENTAL STUDY OF CONCRETE BEAMS STRENGTHENED WITH NEAR-SURFACE MOUNTED CFRP

1.
1. School of Civil Engineering,Henan Polytechnique University Jiaozuo 454003;
2.
2. Dept.of Civil Eng.,CSU Changsha 410075

摘要

摘要: 针对内嵌(Near-Surface Mounted,简称NSM)加固法的特点,进行了4根内嵌碳纤维增强塑料(Concrete Fiber Reinforced Polymer,简称CFRP)板条加固混凝土梁的试验研究。试验结果表明,内嵌CFRP板条加固混凝土梁能显著提高混凝土梁的极限承载能力和弯曲刚度,有效阻止混凝土裂缝的产生和发展,并对混凝土和钢筋的受力起分摊作用;加固量相同时,内嵌CFRP加固梁性能要优于外贴CFRP加固梁,加固材料强度利用率较高。内嵌加固法是一种新的加固形式,具有广阔的发展前景。
- NSM /
- CFRP /
- 加固 /
- 混凝土梁 /
- 试验研究
Abstract: In accordance with the characteristics of Near-Surface Mounted(NSM) method,four beams are experimented strengthened with NSM Concrete Fiber Reinforced Polymer(CFRP) laminates.The results show that NSM CFRP can remarkably improve the bearing-capacity and stiffness of RC beams,it can also effectively restrict the crack,and CFRP laminates also share force with concrete and steel bar.NSM CFRP is more effective than EBR CFRP,and the use of the CFRP laminates is more effective strengthened with NSM.NSM method is a new way of strengthening,and it has a wide apply.
- NSM /
- CFRP /
- strengthened /
- concrete beams /
- experimental

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参考文献(8)

[2] 岳清瑞,李庆伟,杨勇新.纤维增强复合材料嵌入式加固技术.工业建筑,2004,34(4):1-4

陈肇元:要大幅度提高建筑结构设计的安全度.建筑结构,1999,29(1):63-66

[3] 李荣,滕锦光,岳清瑞.FRP材料加固混凝土结构应用的新领域-嵌入式(NSM)加固法.工业建筑,2004,34(4):5-10

[4] De Lorenzis L,Nanni A.Characteristics of FRP Rods as NSM Reinforcement.ASCE Journal of Composites Construction,2001,5(2):114-121

[5] De Lorenzis L,Nanni A.Bond between NSM Fiber-Reinforced Polymer Rods and Concrete in Structural Strengthening.ACI Structural Journal,2002,99(2):123 ～ 132

[6] De Lorenzis L,Rizzo A,La Tegola A.A Modified Pull-out Test for Bond of Near-Surface Mounted FRP Rods in Concrete.Composites Part B:Engineering,2002,33 (8):589-603

[7] De Lorenzis L,Lundgren K,Rizzo A.Anchorage Length of Near-Surface Mounted Fiber-Reinforced Polymer Bars for Concrete StrengtheningExperimental Investigation and Numerical Modeling Concrete.ACI Structural Journal,2004,101 (2):269-278

[8] De Lorenzis L.Anchorage Length of Near-Surface Mounted FiberReinforced Polymer Rods for Concrete Strengthening-Analytical Modeling.ACI Structural Journal,2004,101(3):375-386

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