REHABILITATION OF DAMAGED CIRCULAR HOLLOW SECTION(CHS)STEEL COLUMNS UNDER COMPRESSION USING CFRP AND GROUT

摘要：

　　This paper presents an experimental evaluation of axially loaded damaged steel Circular hollow Section(CHS)columns rehabilitated by Carbon Fibre Reinforced Polymers(CFRP)or high-strength grout,respectively.A total of 10 specimens were axially loaded to investigate their compressive behavior.Two types of repairing methods are adopted.One of the methods is external wrapping CFRP sheets,and the other is jacketeing with high-strength grout.The failure modes were presented together with load–deformation behavior of specimens.The test results confirmed that the behavior of damaged CHS steel columns was effectively restored whether by CFRP or grout jackets.The local buckling of the internal steel tube was either delayed by fibres or suppressed by the surrounding grout,leading to an improvement in loading capacity.

关键词： steel CHS CFRP grout compression

作者: C.Huang T.Chen X.Wang

作者单位: Department of Structural Engineering,Tongji University,Shanghai 200092,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: 1-5

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）