EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES AND SEISMIC PROPERTIES OF SANDWICH MASONRY CONSTITUTED BY DIFFERENT GRADES OF INTERNAL & EXTERNAL WALLS

The compression experiments of 12 masonry specimens with 4 different grades of mortar strength were made,it was analyzed its failure behaviors,deformation and other characters.The results show that cracking load and failure load have certain regularities,there is an obvious relationship between the compression strength and mortar.A proposed formula of compression strength is given for the sandwich masonry through data regression analysis.By the experimental investigation of 2 sandwich walls under low cyclic lodging,the failure features and basic seismic behavior such as deformation behavior,strength,ductility relations of this kind of walls have been analyzed.And studies show that this walls seismic behavior is excellent.