CONCRETE COVER SEPARATION FAILURE OF COMPOSITE RC BEAMS WITH CFRP U-SHAPE ANCHORAGE

摘要：

　　Anchorage system can help the FRP strengthened beams achieve higher levels of FRP utilization prior to premature debonding failure and improve the load bearing capacity.While the majority of studies have focused on the effect of anchorage system on intermediate crack(IC)debonding and end debonding,very few studies have been devoted to the commonly faced concrete cover separation.The aim of this study is to develop an analytical approach for the flexural strengthening RC beams with U-shape CFRP anchorage and predict the debonding failure of concrete cover separation.The present paper designed seven specimens with different width and height of U-shape end anchorage to investigate the effect of relevant parameters on concrete cover separation by artificial tooth test of strengthened RC element.The height of U-anchorage was proved to be more efficient than its width to improve the debonding strength.

关键词： CFRP RC elements concrete cover separation Cantilever U-anchorage

作者: H.F.Shi D.W.Zhang W.L.Jin T.Ueda

作者单位: Institute of Structural Engineering,Department of Civil Engineering,ZheJiang University,Room A608,An Institute of Structural Engineering,Department of Civil Engineering,ZheJiang University,Room A603,An

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-4

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）