STRENGTHENING OF URM WALLS FOR DIRECT SHEAR

摘要

Many older masonry buildings exist in earthquake prone regions. In most cases these buildings contain shear walls which are constructed of unreinforced masonry. The majority of these buildings were built before any provision for earthquake loading was required. Therefore, seismic retrofitting of these structures has attracted many researchers and practitioners in recent years to develop effective strengthening techniques. The study reported in this paper examines the suitability of composite overlays bonded to the surface of solid clay bricks. The variables in the test included the strength of the fabric, fiber orientation, and anchorage length. The specimens were tested under static loading. The results showed that this technique can significantly improve both the strength and ductility of tested specimens.