FATIGUE TEST ON CFRP PLATE REPAIRED RECTANGULAR HOLLOW SECTION(RHS)STEEL BEAMS WITH INITIAL CRACKS

摘要：

　　This paper presents the fatigue test on rectangular hollow section(RHS)steel beams with an initial crack.The crack was artificial cut on the bottom of the mid-span with certain depth.They were patched with normal modulus and high modulus carbon fibre reinforced polymer(CFRP)plates.It was recognized that prestressed CFRP plate can increase the utilization efficiency of the materials.Therefore,prestressed CFRP plates were prepared with self-balanced instrumentation and patched to the cracked specimens.Crack propagation,failure modes and number of cycles were recorded during the fatigue test.The results were discussed with modulus and prestressing level.It was found that both the patching and prestressing technique can improve the fatigue performance.

关键词： Fatigue test CFRP rectangular hollow section (RHS) steel beam initial crack prestressing

作者: T.Chen M.Qi

作者单位: Department of Structural Engineering,Tongji University,China

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）