Effects of Earthquake on Unreinforced Masonry Buildings
For given direction of earthquake, wall A acts as a shear wall and B acts as flexure wall. If the walls are not tied together wall B overturn (out of plane) and wall A slides (in plane) and collapse occurs. Masonry units should be tied properly. Such type of failure was among the most common, resulting from out-of-plane vibration of the walls. As the wall bends