铁道标准设计2016，Vol.60Issue(9)：71-73,74,4.DOI:10.13238/j.issn.1004-2954.2016.09.016
膨胀剂对钢管混凝土徐变及承载力的影响研究
Research on Effects of Expansive Agent on Bearing Capacity and Creep of CFST
摘要
Abstract
In order to study the effects of expansion agent on the bearing capacity and creep of CFST, mathematical method is used to calculate the creep of core-concrete filled steel tube based on the theory of CEB/FIP. In the experiment, the size of experimental specimen remains unchanged and the effects of expansive agent on CFST are analyzed with variable amount of expansive agent in concrete. Finally, the ultimate bearing capacity of the components is tested. To the conclusion, the calculated value by CEB/FIP method is consistent with experimental value. There exists a best dosage of the expansive agent to the bearing capacity and creep and the creep can slightly improve the ultimate bearing capacity of the CFST.关键词
钢管混凝土/徐变/承载力/膨胀剂Key words
CFST/Creep/Bearing capacity/Expanding agent分类
交通工程引用本文复制引用
葛勇,王起才,耿江伟,杨芳,刘屺阳..膨胀剂对钢管混凝土徐变及承载力的影响研究[J].铁道标准设计,2016,60(9):71-73,74,4.基金项目
长江学者和创新团队发展计划(IRT1139) （IRT1139）
