[1]徐秀丽,刘伟庆,蓝宗建,等.碳纤维加固钢筋混凝土受扭梁的试验研究[J].东南大学学报(自然科学版),2001,31(4):67-70.[doi:10.3969/j.issn.1001-0505.2001.04.016]
　Xu Xiuli,Liu Weiqing,Lan Zongjian,et al.Experimental Study on Torsional Reinforced Concrete Beam Strengthened with Carbon Fiber Reinforced Plastics[J].Journal of Southeast University (Natural Science Edition),2001,31(4):67-70.[doi:10.3969/j.issn.1001-0505.2001.04.016]
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碳纤维加固钢筋混凝土受扭梁的试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第4期
页码:
67-70
栏目:
土木工程
出版日期:
2001-07-20

文章信息/Info

Title:
Experimental Study on Torsional Reinforced Concrete Beam Strengthened with Carbon Fiber Reinforced Plastics
作者:
徐秀丽1;  刘伟庆1;  蓝宗建2;  黄卫3
1 南京建筑工程学院土木工程系, 南京 210009; 2 东南大学土木工程学院, 南京 210096; 3 东南大学智能运输系统研究中心, 南京 210096
Author(s):
Xu Xiuli1;  Liu Weiqing2;  Lan Zongjian2;  Huang Wei3
1 Department of Civil Engineering, Nanjing Architectural and Civil Engineering Institute, Nanjing 210009, China; 2 College of Civil Engineering, Southeast University, Nanjing 210096, China; 3 Intelligent Transportation Sys
关键词:
钢筋混凝土;  受扭梁;  碳纤维布;  极限承载力
Keywords:
reinforced concrete;  torsional beam;  carbon fiber reinforced plastics;  ultimate bearing capacity
分类号:
TU32/399-02
DOI:
10.3969/j.issn.1001-0505.2001.04.016
摘要:
介绍了碳纤维加固钢筋混凝土纯扭梁的试验过程和结果,试验研究的主要参数为碳纤维加固量和加固方式.试验结果表明,碳纤维加固后梁的极限承载力得到了较大的提高,但当梁为少筋梁或混凝土强度较低时,最终破坏由梁本身引起,碳纤维强度不能充分发挥,因此增加加固碳纤维量对梁的承载力的提高作用不大; 碳纤维加固抗扭梁时,碳纤维间隔粘贴比满贴效率更高; 此外,碳纤维与混凝土的粘结强度也是影响加固效果的主要因素之一.
Abstract:
The experiment process and results of torsional reinforced concrete beam strengthened with carbon fiber reinforced plastics(CFRP) are introduced. The main parameters studied in the experiment are the amount of CFRP, and the placement of CFRP reinforcement. The investigation shows that the application of CFRP to reinforced concrete torsional beams results in a relative increase in ultimate bearing capacity. The failure of beam with low-reinforcement ratio or quite low concrete strength begins in beam itself, so the strength of CFRP can not be fully used and the bearing capacity of beam strengthened with CFRP doesn’t increase much. The CFRP for torsional beam is more effective when it is separately wrapped rather than fully wrapped. Besides, bonding strength between CFRP and concrete is one of the important factors affecting reinforced results.

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备注/Memo

备注/Memo:
作者简介:徐秀丽,女,1963年生,副教授,博士研究生.
吕志涛.新世纪混凝土结构对新材料的挑战.见:中国首届纤维增强塑料(FRP)混凝土结构学术交流会论文集,2000.1～4.
更新日期/Last Update: 2001-07-20