FRP Composites for Masonry Retrofitting - Review of Engineering Issues, Limitations, and Practical Applications

May 30, 2009
Publication: Structure Magazine
Author(s): Tumialan, J. Gustavo Vatovec, Milan Kelley, Paul L.

Abstract: Recently, FRP systems have received attention from the repair and rehabilitation industry as a viable methodology that can be employed to address strength, damage, and deterioration issues in masonry. The emerging FRP industry, which had originally focused on retrofitting of concrete structures, has eventually recognized an opportunity to employ high-strength composites to improve structural capacity or stabilize distress in masonry construction, especially walls.|Masonry structures are often in need of help. Because of its material characteristics and exposure conditions, masonry is often prone to damage or deterioration. Temperature changes and exposure to moisture and other environmental factors result in deterioration, weakening, and distress of masonry elements. In addition, masonry construction, especially in unreinforced historic applications, is especially vulnerable and often cannot resist demands due to external loads such as earthquakes, high wind pressures, soil pressure, deformation-driven stresses (e.g. foundation settlement), excessive vibration, etc. FRP materials, if used properly, can be used to address a number of these problems in service and to arrive at more-durable, ductile, and stronger masonry systems.