Unreinforced masonry (URM) walls strengthened with composites were tested to failure at a decommissioned building in St. Louis, Missouri. the walls were subjected to out-of-plane loading. Previous work on URM as well as reinforced masonry walls strengthened with fiber reinforced polymer (FRP) laminates has shown remarkable increases in capacity and ductility. However, most of this research work has been conducted in the laboratory, where it is difficult to reproduce real field conditions. in this context, this experimental program offered a unique opportunity for performing field experimentation on URM walls strengthened FRP laminates showing that shear compression led to controlling the failure of either the upper or lower boundary masonry units. an analytical model that provides good agreement with the experimental results is also presented. the model computes the applied concentrated out-of-plane load, midheight deflection, and rotations at the supports. the analytical model can be easily modified to take into account distributed loads acting on the wall.


Civil, Architectural and Environmental Engineering

Keywords and Phrases

Fiber reinforced polymers; Laminates; Masonry; Missouri; Reinforcement; Walls

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version


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Publication Date

01 Aug 2003