Diagnosis of NSM FRP reinforcement in concrete by using mixed-effects models and EMI approaches
نویسندگان
چکیده
The use of fibre reinforced polymer (FRP) in civil construction applications with near-surface mounted (NSM) method has gained considerable popularity worldwide as suitable for strengthening existing concrete structures. However, there is very little experience the implementation methods able to give a reliable prediction about health this type structures even although sudden and brittle failure modes are likely happen. Because it, more contributions on topic really needed order prevent possible catastrophic failures. In paper, novel approach based linear mixed effects models implemented results from experimental tests performed beams strengthened NSM FRP been explored. spite their rapid growth other areas, have barely applied structural problems. Impedance measurements captured PZT sensors embedded externally bonded beam used quantitative qualitative analysis. This research shows that evolution progressive damage kind repairing can be effectively monitored using proposed approach.
منابع مشابه
Proposed Design Procedure of Nsm Frp Reinforcement for Flexural and Shear Strengthening of Rc Beams
Near-surface mounted (NSM) fiber-reinforced polymer (FRP) reinforcement has been found to perform efficiently as a flexural/shear strengthening technology for reinforced concrete (RC) members, while offering some additional practical advantages with respect to the most widespread technique of externally bonded laminates. This paper presents a design procedure for flexural and shear strengthenin...
متن کاملA Sample of International Production FRP Reinforcement for Concrete Structures
fi ber reinforced plastic (FRP) re. nforcement is one of the most promising new developments for concrete structures. FRP reinforcing elements provide lighter, easier to assemble, and more durable structures that are free of the deterioration caused by corrosion of steel. FRPs consist of synthetic or organic highstrength fibers, most of which are impregnated with a resin matrix. They are availa...
متن کاملNorth American Design Guidelines for Concrete Reinforcement and Strengthening Using Frp: Principles, Applications, and Unresolved Issues
This paper reports on the North American state-of-the-art in the use of FRP composites in concrete structures. FRP bars have been used as the internal reinforcement in concrete members to replace conventional steel rebars for a host of reasons. The principles for design and construction have been established and proposed to industry by the American Concrete Institute (ACI). The fundamental prin...
متن کاملExperimental and Numerical Investigation of Two Fixed-End RC Beams Strengthened With CFRP Bars in NSM Method
Fiber reinforced polymer (FRP) material is currently being produced in different configurations and widely used to strengthen and retrofit concrete structures and bridges. It is also possible to apply other strengthening methods without changing the appearance or the dimensions of the structure. Near Surface Mounted (NSM) is a recent strengthening method using CFRP bars (rods or laminate strips...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Composite Structures
سال: 2021
ISSN: ['0263-8223', '1879-1085']
DOI: https://doi.org/10.1016/j.compstruct.2021.114322