Development of a new type of GRP pole guard
Abstract:Many roadside utility poles are covered with steel guards to protect them from car collision damage and to make them more visible at night. But steel has its disadvantages in this application: It is difficult to handle during installation, and rust causes poor appearance and, ultimately, failure of the part. A new GRP pole guard has been developed and is already in use in Japan. This new pole guard takes advantage of GRP's elasticity to offer better durability and easier handling. The new GRP pole guard is self-attaching; thus it can be installed and removed without bolts or belts. In addition, posters and fliers will not adhere to the GRP's textured surface. We studied the optimum design to capitalize on GRP's properties. We used curved beam theory and finite element analysis to design the shape, and studied fiber structures to improve strength and rigidity. This specially shaped GRP pole guard is made using the pultrusion molding method.
Document Type: Research Article
Publication date: January 1, 1997