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[1]庄芸.预应力碳纤维布加固梁最佳预应力水平的确定[J].武汉工程大学学报,2008,(04):15-19.
 ZHUANG Yun.Determination of the best prestressed level to reinforced concrete beams strengthened with prestressed carbon fiber reinforced polymer [J].Journal of Wuhan Institute of Technology,2008,(04):15-19.
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预应力碳纤维布加固梁最佳预应力水平的确定
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2008年04期
页码:
15-19
栏目:
资源与土木工程
出版日期:
2008-04-30

文章信息/Info

Title:
Determination of the best prestressed level to reinforced concrete
beams strengthened with prestressed carbon fiber reinforced polymer
文章编号:
16742869(2008)04001505
作者:
庄芸
武汉工程大学环境与城市建设学院,湖北 武汉 430074
Author(s):
ZHUANG Yun
School of Environmental and Civil Engineering,Wuhan Institue of Technology,Wuhan 430074,China
关键词:
预应力水平预应力CFRP布加固C程序数值模拟
Keywords:
prestress levelprestressed CFRP sheetsstrengtheningC programthe calculations of numerical simulation
分类号:
TU 375.1
DOI:
-
文献标志码:
A
摘要:
无论是抗裂、减小正常使用状态下的裂缝宽度和挠度、延缓钢筋屈服还是提高构件极限承载力,预应力碳纤维加固梁的性能均优于非预应力碳纤维加固梁,而预应力水平的取值直接影响加固构件的力学性能.在国内外已有的预应力碳纤维布加固一次、二次受力梁试验研究的基础上,对最佳预应力水平的取值进行理论分析,建议碳纤维布最佳的预应力水平在60%εcfu左右.
Abstract:
Whether resisting crack or reducing the normal state of the crack width and the deflection or delaying the yield of reinforced or increasing member ultimate capacity,the strengthening effect of prestressed CFRP sheets contrasting with nonprestressedCFRPsheets is obvious,The value of Prestressed level directly affects the mechanical properties of components . Based on the existing domestic and international experimental studying on primary and secondary load for RC beam is strengthened with prestressed CFRP sheep. This paper analysize the best value of prestress level and propose CFRP Prestressed best level which is about 60% εcfu.

参考文献/References:

1]Lu Z, Boothby T E., Nannies C E.,et al.Transfer and Development Lengths of FRP Prestressing Tendons[J]. PCI Journal,2000,45(2):8495.
[2]尚守平,彭晖,童桦,等.预应力碳纤维布材加固混凝土受弯构件的抗弯性能研究[J].建筑结构学报,2003,24(5):2430.
[3]飞渭,江世永,彭飞飞,等.预应力碳纤维布加固混凝土受弯构件试验研究[J].四川建筑科学研究,2003,29(2):5660.
[4]飞渭,江世永,彭飞飞,等.预应力碳纤维布加固混凝土受弯构件正截面承载力分析[J].四川建筑科学研究,2003,29(3):4245.
[5]彭飞飞,江世永,飞渭,等.预应力CFRP布加固混凝土梁不卸载时的受弯性能试验研究[J].四川建筑科学研究,2003,29(2):3942.
[6]彭飞飞,江世永,飞渭,等.预应力CFRP布加固混凝土梁不卸载时的抗弯承载力[J].四川建筑科学研究,2003,29(3):6062.
[7]张坦贤,吕西林.预应力碳纤维布加固一次二次受力梁抗弯试验研究[J].结构工程师,2005(1):3440.
[8]张坦贤,吕西林.预应力碳纤维布加固一次二次受力梁抗弯试验全过程理论分析[J].结构工程师,2005(4):4349.
[9]庄芸.预应力碳纤维布加固二次受力梁抗弯试验研究[J].武汉工程大学学报,2008(2):6569.
[10]CECS146:2003,碳纤维片材加固混凝土结构技术规程[S].

相似文献/References:

[1]庄芸.预应力碳纤维布加固二次受力梁抗弯试验研究[J].武汉工程大学学报,2008,(02):65.
 ZHUANG Yun.Experimental research on flexural performance of reinforcedconcrete twice loading beams strengthened with prestressedcarbon fiber reinforced polymer[J].Journal of Wuhan Institute of Technology,2008,(04):65.

备注/Memo

备注/Memo:
收稿日期:20071017
作者简介:庄芸(1969),女,湖北武汉人,讲师,硕士.
研究方向:结构工程.
更新日期/Last Update: