锚固装置对碳纤维布抗剪加固钢筋混凝土T型梁承载力的影响  

EFFECT OF ANCHORING DEVICES ON BEARING CAPACITY OF REINFORCED CONCRETE T-SECTION BEAM SHEAR-STRENGTHENED WITH CFRP SHEETS

作　　者：陈光明[1] 张政[1] 李云雷 周朝阳[3] 

机构地区：[1]广东工业大学土木与交通工程学院,广州510006 [2]深圳华诺建筑规划设计院有限公司,广东深圳518111 [3]中南大学土木工程学院,长沙410075

出　　处：《工业建筑》2015年第11期181-186,共6页Industrial Construction

基　　金：国家自然科学基金项目(51378130;51108097);广东省自然科学基金自由申请项目(S2013010013293);广东省高等学校优秀青年教师培养计划资助项目(Yq2013056);中南大学教师研究基金(2013JSJJ019)

摘　　要：通过对带锚固装置碳纤维加强材料(CFRP)抗剪加固钢筋混凝土梁进行试验研究。共测试6根梁,其中1根为控制梁,1根为U型CFRP箍加固梁,其余4根均为带端部锚固装置的U型CFRP箍加固梁。基于试验结果,首先从破坏模式、抗剪效果等方面分析不同类型锚固装置对碳纤维布抗剪加固钢筋混凝土梁的影响;并将试验结果与GB 50608—2010《纤维增强材料建筑工程应用技术规范》中抗剪承载力计算式进行对比,讨论该计算式的不足。This paper introduced an experimental study on RC beams shear-strengthened with CFRP sheets with different anchoring devices. A total number of 6 beams were tested,among which,one beam served as control beam without any strengthening,another beam with CFRP U-strips was used for comparison,while the rest were shear strengthened with CFRP U-strips with different anchoring devices. First,the failure modes and shear enhancement effects of different anchoring devices were discussed based on test results; then comparisons were made between the experimental shear capacities of the beams and those predicted by shear strength formulas in the existing codes,based on which the deficiency of the existing codes was discussed.

关 键 词：抗剪加固 锚固装置 碳纤维布 破坏模式 受剪承载力 

分 类 号：TU375.1[建筑科学—结构工程]