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Frp Rebar (Afrp, Cfrp, Gfrp), Purdue Ect Team
Frp Rebar (Afrp, Cfrp, Gfrp), Purdue Ect Team
ECT Fact Sheets
Insufficient concrete cover, poor design or workmanship, and presence of large amounts of aggressive agents including environmental factors all can lead to cracking of the concrete and corrosion of the steel rebar. The problems of steel corrosion are avoided with the use of FRPs because FRP materials are nonmetallic and noncorrosive. In addition, FRP materials exhibit several properties including high tensile strength, that make them suitable for the use as structural reinforcement. Furthermore, codes and design guide provisions have been recently prepared for the use of FRP bars in concrete structures for bridges and buildings.
Post-Tensioned Steel Structure, Purdue Ect Team
Post-Tensioned Steel Structure, Purdue Ect Team
ECT Fact Sheets
Welded steel Moment-Resisting Frames (MRFs) were long considered as one the most earthquake-resistant types of structures. Recently, the idea of applying the post-tensioning technology to achieve moment resistant structural systems has been investigated at the University of California, San Diego. Since 1996, moment-resisting connections using post-tensioning concepts have been developed and tested for precast concrete beam-to-column connections, and concrete shear walls.