摘要
讨论了钢筋混凝土梁表层嵌入(NSM)纤维增强材料(FRP)抗弯加固后的破坏形态,基于平截面假定和规程推荐的材料应力-应变关系,分析了T形截面加固梁弯曲破坏时的各种极限状态,提出了相应的极限承载力计算公式和界限破坏发生条件,其计算结果与作者及国外已有试验实测值吻合较好。
The failure modes are discussed for reinforced concrete beams strengthened with near - surface - mounted fiber - reinforced - plastics. The ultimate limit states are analyzed for the T - shaped beams failing in flexure. The expressions are derived for their flexural capacities based on the “plane sections remain plain ” assumption and the stress -strain relationship recommended in the standard. The predicted results are in good agreement with the measured ones from tests of the author and other investigators abroad.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2005年第4期50-53,共4页
Journal of Railway Science and Engineering
基金
湖南省自然科学基金资助项目(05JJ30101)
关键词
FRP
内嵌
加固
钢筋混凝土
抗弯承载力
破坏形态
fiber reinforced plastics
near surface mounted
strengthening
reinforced concrete
flexural capacity
failure mode
