铁道科学与工程学报2017，Vol.14Issue(2)：278-282,5.
GFRP筋混凝土T型梁正截面抗弯承载力研究
Research on flexural capacity of GFRP-reinforced concrete T beams
摘要
Abstract
To study the bearing capacity and design methods for GFRP-reinforced concrete T beams, formulas of bearing capacity were derived by referring to existing theories of GFRP-reinforced concrete rectangular beams and reinforced concrete T beams. It is different from the methods of reinforced concrete beams, the balanced reinforcement ratio is the key to judge the failure mode and carry out the subsequent calculations for GFRP- reinforced concrete beams. Using these formulas with several groups of calculations, the bearing capacity of GFRP-reinforced concrete T beams was taken cross-comparison by considering three different section situations. The above calculation formulas also reflect that because the modulus of elasticity of GFRP bars is relatively low and thus the balanced reinforcement ratio is the same way. Besides, the cross-section for reinforced concrete beams always does not meet the range of balanced damage of GFRP-reinforced concrete beams, which also cannot meet the bearing capacity. The results is consistent with the calculated results also verified the correctness of these formulas on the other hand.关键词
GFRP筋/T型梁/破坏模式/平衡配筋率/抗弯承载力Key words
GFRP bar/T beam/failure mode/balanced reinforcement ratio/flexural bearing capacity分类
建筑与水利引用本文复制引用
陈涛,蔺鹏臻..GFRP筋混凝土T型梁正截面抗弯承载力研究[J].铁道科学与工程学报,2017,14(2):278-282,5.基金项目
国家自然科学基金资助项目(51168030,51208242,51368031) （51168030,51208242,51368031）
甘肃省基础研究创新群体资助项目(1506RJIA029) （1506RJIA029）
长江学者和创新团队发展计划资助项目(IRT1139) （IRT1139）
