URM Walls Strengthened with Fabric-Reinforced Cementitious Matrix Composite Subjected to Diagonal Compression
Source abstract
Abstract
Unreinforced masonry (URM) walls have been constructed for the past millennia and are still widely used today. URM walls have proven to have low shear strength and are prone to brittle failure when subjected to in-plane loads caused by earthquake or wind. Retrofitting URM walls is accomplished internally and externally using current techniques, such as placing steel bars in the cavities and grouting, posttensioning with steel tendons, stitching, and adhering fiber-reinforced polymers (FRP) to increase capacity and enhance pseudoductility. In this study, a fabric-reinforced cementitious matrix (FRCM) system is applied to URM walls to determine its feasibility as an alternative external strengthening technology. The experimental program consists of testing a total of nine clay brick walls under diagonal compression. Two FRCM strengthening reinforcement schemes are applied, namely, one and four reinforcement fabrics. An analytical model is used to calculate the shear capacity of strengthened URM walls and compare its results with the experimental database. The effect of limitations in design approach on shear capacity of strengthened walls is discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Masonry and Concrete Structural Analysis · Building materials and conservation · Polymer composites and self-healing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ph.D. Student, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, 1251 Memorial Dr., Room MEB 315, Coral Gables, FL 33146 (corresponding author).
Lecturer, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami,1251 Memorial Dr., Room MEB 308, Coral Gables, FL 33146.
Lester and Gwen Fisher Endowed Scholar, Professor and Chair, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, 1251 Memorial Dr., Room MEB 325, Coral Gables, FL 33146.
References (31)
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