摘要
分别通过对酸、碱、氯盐溶液腐蚀60d后的玄武岩纤维布加固钢筋混凝土梁进行的静力抗弯试验,研究了三种溶液对玄武岩纤维布加固既有损伤钢筋混凝土梁抗弯性能的影响。结果表明:三种溶液均降低了试验梁承载能力,粘贴相同层数纤维布时,随溶液浓度增加,试验梁承载能力有降低趋势,且随纤维布粘贴层数增加,此种降低趋势越加明显;三种溶液中氯盐溶液影响最小;三种溶液对试验梁的破坏形态影响较小。
Through static bending tests of basalt fiber cloth strengthening reinforced concrete beams corroded by acid solution,alkaline solution and chlorine salt solution for 60 d respectively,effects of three kinds of solutions on flexural behavior of damaged concrete beam strengthened by basalt fiber cloth were studied. The results show that all of three kinds of solution reduce the bearing capacities of test beams. When the same number of fiber cloth layer was pasted the bearing capacity of test beam has a decreasing tendency with the increase of solution concentration,and with the increase of fiber cloth layer,the above increasing trend is more obvious. The effect of chlorine salt solution in three solutions is the minimum. The effects of three solutions on failure pattern of test beam are minor.
出处
《建筑结构》
CSCD
北大核心
2015年第9期81-85 55,55,共6页
Building Structure
基金
天津市自然科学基金重点项目(12JCZDJC28900)
天津市科技兴海项目(KJXH2012-19)
关键词
玄武岩纤维布
酸溶液
碱溶液
氯盐溶液
既有损伤梁
加固
basalt fiber cloth
acid solution
alkaline solution
chlorine salt solution
damaged beam
strengthening
