原文传递
Manufacture and Performance Evaluation
of FRP Rebar Featuring Ductility and
Health Monitoring Capability
| 题名： | Manufacture and Performance Evaluation of FRP Rebar Featuring Ductility and Health Monitoring Capability |
| 作者： | Abdeldjelil Belarbl, K. Chandrashekhara and Steve E. Watkins |
| 关键词： | Composite, Ductility, Fiber Reinforced Polymer (FRP), Flexure, Health Monitoring, Reinforced Concrete Beams, Reinforcing Bars (Rebar), Sensors (Strain) |
| 摘要： | The main objective of this study was to develop a new type of FRP rebar with focus on ductility and health-monitoring issues. One approach to provide ductility was the use of a hybrid FRP reinforcing bar consisting of different types of fibers, which foil at different strains during the load history of the rebar, thereby allowing a gradual failure of the rebar. The Manufacturing of the rebar was achieved by pultrusion and filament winding techniques. These techniques have made it possible to embed fiber optic sensors within the reinforcement, for health monitoring, thus protecting the sensor from the harsh concrete environment. Pseudo-ductile behavior was validated through testing of coupon FRP rebar as well as RC beams. Testing of large-scale beams reinforced with theis hybrid FRP rebar exhibited remarkable ductility behavior with ductility indices close to that of beams reinforced with steel rebar. Furthermore, the strain measured from the embedded fibers optics replicates the measurement of Conventional LVDT and was reliable up to failure of the beams. |
| 报告类型： | 科技报告 |
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