- 摘 要
-
胡伟红 叶列平 （清华大学土木工程系 北京 100084）
[提要] 列举了国内外有关设计标准、指南和文献中的7种CFRP布加固钢筋混凝土柱受剪承载力的计算方法，对国内外33根柱的试验结果进行了验算，分析了各建议公式计算结果的可靠性和CFRP布对受剪的贡献，在此基础上提出了实用计算建议，供编制有关设计规范和工程设计参考。
[关键词] 碳纤维增强复合材料 钢筋混凝土柱 受剪承载力 纤维有效应变The shear strength calculating methods of RC columns strengthened with CFRP sheets, suggested in seven literatures of design standards, specifications and references, are summarized for comparison with the results of 33 tests. The reliability of the seven calculating methods and the shear contribution provided by the CFRP are analyzed. Based on the comparison with experimental results and the analysis,a practical calculating formula to determine the shear contribution of CFRP with enough reliability and simple calculation is put forward. The suggested calculating method can be referred for editing specification and used for construction design.
Keywords: CFRP; RC column; shear strength; effective strain参 考 文 献
1．碳纤维片材加固修复混凝土结构技术规程．中国工程建设标准化协会标准，2003．
2．叶列平，赵树红等．CFRP布加固混凝土柱的斜截面受剪承载力计算建筑结构学报，2000，(2)
3．谢剑，陈胜云等．碳纤维布增强钢筋混凝土柱受剪承载力的试研究与理论分析．见：第二届全国土木工程用纤维增强复合利料( FRP)应用技术学术交流会论文集，2002,7:144-149.
4．Strengthening reinforcement concrete structures with externally bonded fiber reinforced polymers. Design Manual No.4, Sep. 2001, ISIS CANADA.
5．CEB-FIP. Externally bonded FRP reinforcement for RC structure. Technical report on the design and use of externally bonded fiber reinforced polymer reinforcement for reinforced concrete structure prepared by a working party of the Task Group 9.3 FRP reinforcement for concrete structure, July, 2001.
6．Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures. Reported by ACI Committee 440,Revised 24 May 2000
7．The Japan Building Disaster Prevention Assosiation. Seismic retrofit design and construction guidelines for existing reinforced concrete buildings and steel encased reinforced concrete buildings using continuous fiber remforced materials.Sep. 1999.
8．潘景龙，王陈远等．纤维包裹钢筋混凝土短柱抗震性能试验研究．见：纤维布加固鸿泰结构研究报告，哈尔滨工业大学土木工程学院．2002,10.
9．吴刚，吕志涛等．CFRP布加固钢筋混凝土柱抗震性能的试验研究．见：第二届全国土木工程用纤维增强复合材料( FRP)应用技术学术交流会论文集（昆明），2002,7:137-143.
10．赵 彤，周晓洁等．用CFRP改善RC极端柱抗震性能的试验研究地震工程与工程震动，2002, (1)
11．许成祥，李忠献等．碳纤维布加固钢筋混凝土短柱的受剪承载力计算江汉石油学院学报，2002, (1)
12．赵树红，叶列平等．碳纤维布对混凝土柱抗震加固的试验分析．建筑结构，2001, 31( 12)
13．城 攻等．碳素纖維シ－トを用ぃたRC柱の剪斷補强效果に及ぽす諸要因の影响．コソリ－ト工学年次论文集，1997, 19 (2):237-242.
14．混凝土结构设计规范( GB50010-2002)．中国建筑工业出版社，2002
15. Triantafillou T C, Antonopoulos C P.Design of concrete flexural members strengthened ln shear with FRP. Journal of Composites for Construction ASCE, 2000,4(4)
