铁道科学与工程学报2016，Vol.13Issue(5)：943-949,7.
HPFL加固受火RC柱正截面承载力研究
Study on the normal section bearing capacity of RC colu mn strengthened with HPFL after fire
摘要
Abstract
Based on the domestic and foreign research on the mechanical properties of reinforced concrete(RC) after fire,this paper combined the triaxial compression strength theory of concrete with the assumption of flat sec-tion,neglected the bond-slip between the concrete of column strengthened and the high performance ferroce-ment laminate(HPFL)as well as the restraint effect of stirrup in reinforced column,and then proposed a calcula-tion model.The theoretical derivation of the normal section bearing capacity of RC column strengthened by HPFL after fire was presented,and the rationality of the theoretical formula was verified with experiment data and engi-neering examples.The analysis results show that the theoretical formula yield results that agree well with the ex-perimental data,and that strengthening the reinforced concrete column after fire by HPFL could improve its bear-ing capacity of normal section significantly,thus meeting the practical engineering requirements.关键词
HPFL/火灾/三轴受压/加固Key words
HPFL/fire/triaxial compression/strengthening分类
建筑与水利引用本文复制引用
曾令宏,秦元帅..HPFL加固受火RC柱正截面承载力研究[J].铁道科学与工程学报,2016,13(5):943-949,7.基金项目
国家自然科学基金青年基金资助项目 （）
