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嵌入式CFRP加固预裂钢筋混凝土T形梁的试验研究
引用本文:徐明磊,朱浮声,盛国华,刘红涛.嵌入式CFRP加固预裂钢筋混凝土T形梁的试验研究[J].东北大学学报(自然科学版),2011,32(6):879-882.
作者姓名:徐明磊  朱浮声  盛国华  刘红涛
作者单位:东北大学资源与土木工程学院,辽宁沈阳,110819
基金项目:辽宁省交通厅重点科研项目(200920)
摘    要:对于带裂缝工作的混凝土适筋梁进行嵌入式CFRP板抗弯、剪加固,研究不同预裂程度和抗剪加固参数对T形梁加固性能的影响.通过9根T形梁试验,研究了构件的破坏形态、内力和变形特征,讨论了不同预裂程度和抗剪加固参数对加固梁性能的影响.结果表明,采用CFRP板嵌入式加固可以显著地提高裂缝梁的极限承载力.在细微裂缝条件下,带裂缝工...

关 键 词:钢筋混凝土  T形适筋梁  表层嵌贴法加固  CFRP板条  承载力与变形  抗剪加固影响参数

Experimental Study of T-section Pre-cracked Reinforced Concrete Beams Strengthened with Near Surface Mounted CFRP
XU Ming-lei,ZHU Fu-sheng,SHENG Guo-hua,LIU Hong-tao.Experimental Study of T-section Pre-cracked Reinforced Concrete Beams Strengthened with Near Surface Mounted CFRP[J].Journal of Northeastern University(Natural Science),2011,32(6):879-882.
Authors:XU Ming-lei  ZHU Fu-sheng  SHENG Guo-hua  LIU Hong-tao
Institution:XU Ming-lei,ZHU Fu-sheng,SHENG Guo-hua,LIU Hong-tao(School of Resources & Civil Engineering,Northeastern University,Shenyang 110819,China.)
Abstract:In order to recognize the effects of the pre-cracked degree and the shear strengthening parameters on the performance of the reinforced concrete beams,9 T-section pre-cracked reinforced concrete beams strengthened with near surface mounted CFRP sheets are tested.The failure modes,internal force and deflections of the strengthened concrete beams are analyzed.The results show that the reinforcement by embedding the CFRP sheets remarkably improves the flexural ultimate bearing capacity.Under the micro-crack co...
Keywords:reinforced concrete  T-section beams  near surface mounted(NSM) strengthening method  CFRP sheets  bending bearing capacity and deflection of the beams  shear strengthening parameters  
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