IN-PLANE SHEAR RETROFITTING OF TRADITIONALMASONRY WALLS BY NEAR SURFACE MOUNTED METHOD

In this paper, the efficiency of the Near Surface Mounted (NSM) method, for in-plane shearstrengthening of traditional Unreinforced Masonry (URM) walls, is investigated through anexperimental study. In this regard, square solid clay brick masonry wallettes with traditional lime-sandmortar is fabricated and retrofitted with NSM Glass Fiber Reinforced Polymer (GFRP) bars. For ninewallette specimens, diagonal shear tests are conducted to evaluate the in-plane shear behavior of themasonry wallettes. The effects of some key variables including the retrofitted face of the wall and thetype of paste for mounting the reinforcing bars on the efficiency of the retrofitting method areinvestigated. The results of the tests are presented in terms of the lateral shear stress-drift curves.Accordingly, the retrofitting method can enhance the in-plane shear strength and the ultimate lateraldrift capacity of the URM walls

Keywords:

Near Surface Mounted , Unreinforced Masonry , Diagonal Shear Tests , Stress-Drift Curves