MODELING OF TIME-DEPENDENT BONDING AND DEBONDING IN STRUCTURES EXTERNALLY STRENGTHENED WITH FIBER REINFORCED POLYMER SHEETS
The use of fiber reinforced polymers (FRP) as externally bonded reinforcementshas gained widespread acceptance as an innovative technique for the maintenance,rehabilitation and upgrading of existing concrete structures. Significant enhancements instiffness,strength and seismic performance of the structures can be achieved by this technique.Among extensive research efforts which have been paid worldwide,the authors researchgroup at Ibaraki University in Japan has greatly contributed in this field. Although short-termbehavior of FRP-strengthened structures is intensively reported thus far,their long-termperformance has not thoroughly elucidated yet. This paper present recent development inlong-term behavior of concrete structures externally strengthened with fiber reinforcedpolymer (FRP),particularly focusing on the FRP-concrete interface subjected to sustained andfatigue loads. Some suitable time-dependent models for creep and fatigue loading are alsointroduced. This review paper covers also a comparison between available guidelines andrecommendations with the experimental results of time-dependent loading.
FRP-concrete interface fatigue creep viscoelastic model endurance limit
Zhishen Wu Hesham Diab
Urban and Civil Engineering Department,Ibaraki University,Japan Civil Engineering Department,Assiut University,Egypt
国际会议
The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)
杭州
英文
182-194
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）