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...

疲劳荷载下碳纤维薄板加固RC梁变形计算

, PP. 88-91

Keywords: 桥梁工程,纤维薄板,RC梁,变形,疲劳

Full-Text   Cite this paper   Add to My Lib

Abstract:

首先分析了碳纤维薄板(CarbonFiberLaminates简称CFL)加固梁在静载作用下的变形,提出了静载下加固梁挠度的计算公式,该公式在表达方式上与普通钢筋混凝土梁的截面计算刚度相似,同时与试验结果比较具有较高精度。在疲劳载荷下加固梁的疲劳变形分为3个阶段快速增长、平稳增加和失稳扩展。残余挠度也随循环次数的增加而增加,初期和后期增长快,而中间阶段发展较慢。通过考虑试验梁在疲劳荷载作用下的残余变形和瞬时变形,运用递推的方法,提出了在常幅和随机载荷下,碳纤维薄板加固梁挠度的计算公式。通过与试验结果的对比表明,计算结果能够很好地反映梁的挠度变化趋势。

References

[1]  [S].
[2]  INOUE S,NISHIBAYASHI S,YOSHINO A,et al.Strength and Deformation Characteristics of Reinforced Concrete Beam Strengthened with Carbon Fiber-reinforced Plastics Plate Under Static and Fatigue Loading
[3]  [J].工业建筑,2001,31 (9):1-4.YANG Yong-xin,YUE Qing-rui.Calculation of Sectional Stiffness of RC Beams Strengthened with Carbon Fiber Sheets
[4]  [J].Industrial Construction,2001,31 (9):1-4.
[5]  LOVEGROVE J B,SALAH EI,DIN A S.Deflection and Cracking of Reinforced Concrete Under Repeated Loading Fatigue
[6]  王瑞敏.混凝土结构的疲劳性能
[7]  中国工程建设标准化协会,碳纤维片才加固修复混凝土结构技术规程 (2002)
[8]  [S].China Association for Engineering Construction,Technical Specification for Strengthening Concrete Structures with Carbon Fiber Reinforced Polymer Laminate (2002)
[9]  [J].Journal of the Society of Materials Science,1994,43 (491):1004-1009.
[10]  MEIER U,DEURING M,MEIER H,et al.Strengthening of Structures with CFRP Laminates:Research and Applications in Switzerland
[11]  [J].Canadian Society for Civil Engineering,1992:243-252.
[12]  姚国文,黄培彦,牛鹏志,等.循环载荷下碳纤维薄板增强RC梁的疲劳性能试验研究
[13]  [J]实验力学,2005,20 (3):349-353.YAO Guo-wen,HUANG Pei-yan,NIU Peng-zhi,et al.Experimental Study on Fatigue Behavior of RC Beam Strengthened with Carbon Fiber Laminate under Cycle Loading
[14]  [J].Journal of Experimental Mechanics,2005,20 (3):349-353.
[15]  GB50010-2001,混凝土结构设计规范
[16]  [S].GB50010-2001,Code for Concrete Structure Design
[17]  [S].
[18]  杨勇新,岳清瑞.碳纤维布加固混凝土梁截面刚度计算
[19]  [M].ACI Publication,198 2:133-152.
[20]  DENG Yong.Static and Fatigue Behavious of RC Beams Strengthened with Carbon Fiber Sheets Bonded by Organic and Inorganic Mattices
[21]  [D].Alabama:University of Alabama,2002.
[22]  CEB Committee.Euro-international Du Beton.CEB-FIP Model Code 1990
[23]  [S].
[24]  [D].大连:大连理工大学,1989.WANG Rui-min.Fatigue Property of Concrete Structure
[25]  [D].Dalian:Dalin University of Technology,1989.
[26]  贡金鑫,赵尚传,赵国藩.随机反复荷载下钢筋混凝土受弯构件变形的计算及可靠度分析
[27]  [J],工业建筑,2002,32 (2):24-27.GONG Jin-xin,ZHAO Shang-chuan,ZHAO Guo-fan.Calculation and Reliability Analysis of Long-term Deformation of Reinforced Concrete Bending Members Subjected to Random Repeated Load
[28]  [J].Industrial Construction,2002,32(2):24-27.
[29]  黄培彦,赵琛,陈翠峰.随机载荷下碳纤维薄板增强RC梁试验研究
[30]  [J]实验力学,2006,24 (4):491-497.HUANG Pei-yan,ZHAO Chen,CHEN Cui-feng.Research on RC Beams Strengthened with Carbon Fiber Laminateunder Random Load
[31]  [J].Journal of Experimental Mechanics,2006,24 (4):491-497.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133