碳纤维布预应力补强加固钢筋混凝土梁受力性能研究

田水; 谷倩

doi:10.13204/j.gyjz200506026

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碳纤维布预应力补强加固钢筋混凝土梁受力性能研究

doi: 10.13204/j.gyjz200506026

田水,
谷倩

1.
武汉理工大学土木与建筑学院武汉 430070

基金项目:

武汉市青年科技晨光计划（20035002016-30）;校科研基金（2003XJJ171）资助项目

详细信息

作者简介:
田水，男，1968年5月出生，讲师

中图分类号: TU375.1
计量
- 文章访问数: 75
- HTML全文浏览量: 3
- PDF下载量: 99
- 被引次数: 0
出版历程
- 收稿日期: 2004-12-20
- 刊出日期: 2005-06-20

RESEARCH ON FORCED PERFORMANCE OF RC BEAMS STRENGTHENED WITH PRESTRESSED CFRP

Tian Shui,
Gu Qian

1.
School of Civil Technology and Architecture,Wuhan University of Science and Technology Wuhan 430070

摘要

摘要: 与非预应力加固相比较，预应力加固使得裂缝和变形控制更易实现，为了研究预应力粘贴碳纤维加固钢筋混凝土梁的受力性能，通过编制数值分析程序，分析了不同预应力度下加固对梁的极限承载力、截面弯矩-曲率及对梁的界限相对受压区高度的影响，讨论了影响CFRP加固钢筋混凝土梁强度、刚度和破坏形态的各种因素。
- 碳纤维布 /
- 加固 /
- 预应力
Abstract: It is easier to control the deflection and crack of the RC beam strengthened with prestress than the one without prestress. In order to study the forced performance of RC beams strengthened with prestressed CFRP, it is analyzed that the effect of different prestress levels on the ultimate bearing capacity of the beam, section moment-curvature and the beam depth of relative compressive zone. And it is also discussed that all the factors influencing the strength, stiffness and failure mode of the RC beams strengthened with CFRP.
- CFRP /
- strengthen /
- prestress

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参考文献(7)

[2] 朱伯龙,董振祥.钢筋混凝土非线性分析.上海:同济大学出版社,1985

关丽秋,赵国藩.钢纤维混凝土受弯构件荷载-变形全过程分析.建筑结构学报,1988(1)

[3] 陈小兵,颜子涵,岳清瑞,等.碳纤维材料加固钢筋混凝土梁的试验研究.工业建筑,1998(11)

[4] Rahimi H, Hutchinson A. Concrete Beams Strengthened with Externally Bonded FRP Plantes. Journal of Composites for Construction, ASCE,2001,5(1) :44 ～ 56

[5] Lamanna A J, Bank L C, Scott D W. Hexural Strengthening of Reinforced Concrete Beams Using Fasteners and Fiber-Reinforced Polymer Strips.AC1 Structural Journal, 2001,98(3) :368 ～ 376

[6] Chajes M, Thomson T A, Januszka T F, et al. Flexural Strengthening of Concrete Beams Using Externally Bonded Composite Materials.Construction and Building Material, 1994,8(3): 191 ～ 201

[7] Ross C A, Jerome D M, Tedesco J W, et al. Strengthening of Reinforced Concrete Beams with Externally Bonded Composites Laminates. ACI Structural Journal, 1999,96(2) :212 ～ 220

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