CFRP加固混凝土柱受剪承载力计算方法的分析
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摘要
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 3 3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。
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.
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.
引文
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验研究与理论分析.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,2002,7:144149.
4Strengtheningreinforcementconcretestructureswithexternally bondedfiberreinforced polymers.DesignManualNo.4,Sep.2001,ISISCANADA .
5CEB FIP .ExternallybondedFRPreinforcementforRCstructure.TechnicalreportonthedesignanduseofexternallybondedfiberreinforcedpolymerreinforcementforreinforcedconcretestructurepreparedbyaworkingpartyoftheTaskGroup93FRPreinforce mentforconcretestructure,July,2001.
6GuideforthedesignandconstructionofexternallybondedFRPsys temsforstrengtheningconcretestructures.ReportedbyACICom mittee440,Revised24May2000.
7TheJapanBuildingDisasterPreventionAssosiation.Seismicretrofitdesignandconstructionguidelinesforexistingreinforcedconcretebuildingsandsteelencasedreinforcedconcretebuildingsusingcon tinuousfiberreinforcedmaterials.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),2002,7:137143.
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.碳素纤维シ-トを用ぃたRC柱の剪断补强效果に及ぽす诸要因の影响.コソリ-ト工学年次论文报告集,1997,19(2):237242.
14混凝土结构设计规范(GB50010—2002).中国建筑工业出版社,2002.
15TriantafillouTC ,AntonopoulosCP .DesignofconcreteflexuralmembersstrengthenedinshearwithFRP .JournalofCompositesforConstructionASCE ,2000,4(4).
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验研究与理论分析.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,2002,7:144149.
4Strengtheningreinforcementconcretestructureswithexternally bondedfiberreinforced polymers.DesignManualNo.4,Sep.2001,ISISCANADA .
5CEB FIP .ExternallybondedFRPreinforcementforRCstructure.TechnicalreportonthedesignanduseofexternallybondedfiberreinforcedpolymerreinforcementforreinforcedconcretestructurepreparedbyaworkingpartyoftheTaskGroup93FRPreinforce mentforconcretestructure,July,2001.
6GuideforthedesignandconstructionofexternallybondedFRPsys temsforstrengtheningconcretestructures.ReportedbyACICom mittee440,Revised24May2000.
7TheJapanBuildingDisasterPreventionAssosiation.Seismicretrofitdesignandconstructionguidelinesforexistingreinforcedconcretebuildingsandsteelencasedreinforcedconcretebuildingsusingcon tinuousfiberreinforcedmaterials.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),2002,7:137143.
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.碳素纤维シ-トを用ぃたRC柱の剪断补强效果に及ぽす诸要因の影响.コソリ-ト工学年次论文报告集,1997,19(2):237242.
14混凝土结构设计规范(GB50010—2002).中国建筑工业出版社,2002.
15TriantafillouTC ,AntonopoulosCP .DesignofconcreteflexuralmembersstrengthenedinshearwithFRP .JournalofCompositesforConstructionASCE ,2000,4(4).
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