Structural Performance of a Precast Beam to Column Connection Strengthened with FRP under Monotonic Loading

摘要

Over the years, precast concrete construction has been employed in many parts of the world mainly because it is less labour intensive and rapid. However, its connection remains in many cases an issue that requires careful consideration at both the design and construction stages. More precisely, the ductility and rotational stiffness are often challenging factors that need to be considered. In that perspective, this work focuses on finding the improvement of a precast beam-to-column connection with strengthening from fibre reinforced polymer (FRP). High strength basalt fibre fabric was used in this particular study. The study revealed a net improvement in the connection's rotational stiffness and ductility. It was also found that the addition of a steel plate on top of the FRP contributed to maintaining the strength of the connection under late plastic deformation.