摘要
通过13根碳纤维板条加固混凝土梁的受力性能试验对碳纤维加固梁的抗剪性能进行研究,比较分析了不同加固量、开槽尺寸、内嵌或外贴碳纤维板条等因素对试验梁受力性能的影响。试验梁为2.3 m跨度的混凝土梁和碳纤维板条加固混凝土梁。试验研究表明,采用内嵌碳纤维板条加固可以有效提高混凝土梁的承载力,减小梁的挠度和裂缝宽度,在试验研究的基础上进行了试验梁的全过程受力分析,与试验结果吻合较好。
Thirteen 2.3 m length reinforced concrete beams strengthened with CFRP laminate were tested to investigate the influence of CFRP parameters on shear behavior of CFRP-strengthened RC beam.Several parameters, including the amount of strengthening CFRP laminate, grooving width, near-surface mounted(NSM ) or external bonded reinforced(EBR) CFRP laminate, were studied.The moment-curvature curves of are comparable with test results.Based on the test and analysis results, it is found that the NSM CFRP laminate can increase the load capacity and decrease the deflection and the crack width.
出处
《混凝土》
CAS
CSCD
北大核心
2007年第11期8-11,共4页
Concrete
基金
河南省高校杰出科研人才创新工程项目(2007KYCZ006)
关键词
内嵌
外贴
碳纤维板条
混凝土梁
near-surface mounted (NSM)
external bonded reinforced ( EBR )
CFRP laminate
concrete beams