全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

FRP加固梁的FRP-混凝土界面脱胶分析

DOI: 10.6052/1000-0879-12-275, PP. 49-54

Keywords: 纤维增强聚合物,界面,脱胶,加固

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了研究纤维增强聚合物(fiberreinforcedpolymer,FRP)加固梁的FRP-混凝土界面脱胶破坏过程,本文将混凝土梁和FRP板均视为线弹性的欧拉-伯努利梁(Euler-Bernoullibeams),且两者通过粘结层胶结在一起.对于FRP-混凝土结构,有两种形式的脱胶破坏板端脱胶破坏和跨中裂缝导致的脱胶破坏.对于FRP-混凝土梁,利用合理的粘结模型按第2种脱胶失效形式,详细讨论了FRP-混凝土界面的脱胶过程,得到了不同阶段的胶结滑移、界面剪应力和FRP轴向力的解析解.实验研究验证了理论分析的结果,参数研究进一步探讨了胶结长度和粘结层厚度对于FRP-混凝土界面脱胶行为的影响.

References

[1]  1 Teng JG,Smith ST,Yao J,et al. Intermediate crack- induced debonding in RC beams and slabs. Construction and Building Materials,2003,17(6-7):447-462
[2]  2 Tounsi A. Improved theoretical solution for interfacial stresses in concrete beams strengthened with FRP plate. International Journal of Solids and Structures,2006,43(14-15):4154-4174
[3]  3 Qiao PZ,Chen FL. An improved adhesively bonded bi- material beam model for plated beams. Engineering Struc- tures,2008,30(7):1949-1957
[4]  4 Tounsi A,Hassaine DT,Benyoucef S,et al. Interfacial stresses in FRP-plated RC beams:Effect of adherend shear deformations. International Journal of Adhesion,2009,29(4):343-351
[5]  5 Pan JL,Leung CKY. Debonding along the FRP{concrete interface under combined pulling/peeling effects. Engineer- ing Fracture Mechanics,2007,74(1-2):132-150
[6]  6 Yao J,Teng JG,Chen JF. Experimental study on FRP-to- concrete bonded joints. Composites:Part B,2005,36(2):99-113
[7]  7 Qiao PZ,Wang JL. Novel joint deformation models and their application to delamination fracture analysis. Com- posites Science and Technology,2005,65(11-12):1826-1839
[8]  8 Wang JL,Qiao PZ. Analysis of beam-type fracture speci- mens with crack-tip deformation. International Journal of Fracture,2005,132(3):223-248
[9]  9 Rabinovitch O. Debonding analysis of fiber-reinforced- polymer strengthened beams:Cohesive zone modeling ver- sus a linear elastic fracture mechanics approach. Engineer- ing Fracture Mechanics,2008,75(10):2842-2859
[10]  10 Wang JL. Cohesive zone model of FRP-concrete interface debonding under mixed-mode loading. International Jour- nal of Solids and Structures,2007,44(20):6551-6568
[11]  11 Wang JL,Zhang C. Nonlinear fracture mechanics of flexural{shear crack induced debonding of FRP strength- ened concrete beams. International Journal of Solids and Structures,2008,45(10):2916-2936
[12]  12 Yuan H,Chen JF,Teng JG,et al. Interfacial stress analysis of a thin plate bonded to a rigid substrate and subjected to inclined loading. International Journal of Solids and Structures,2007,44(16):5247-5271
[13]  13 Teng JG,Yuan H,Chen JF. FRP-to-concrete interfaces be- tween two adjacent cracks:Theoretical model for debond- ing failure. International Journal of Solids and Struc- tures,2006,43(18-19):5750-5778
[14]  14 Chen JF,Yuan H,Teng JG. Debonding failure along a softening FRP-to-concrete interface between two adjacent cracks in concrete members. Engineering Structures,2007,29(2):259-270
[15]  15 Chen FL,Qiao PZ. Debonding analysis of FRP-concrete interface between two balanced adjacent flexural cracks in plated beams. International Journal of Solids and Struc- tures,2009,46(13):2618-2628

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133