Experimental Study of Edge Displacements of Laterally Loaded Window Glass Plates

摘要

Models of window glass response to uniform lateral loads have traditionally incorporated certain assumptions about plate boundary conditions. These assumptions are advanced for several reasons: (1) the desire to limit variables to the glass and its imposed load, (2) the complexities introduced when boundary conditions are other than those traditionally assumed, and (3) the weight of empirical evidence that the assumptions are inherently valid. These assumptions essentially are that glass frames, moldings, and other edge-restraining devices act as simple supports; i.e., they allow free rotation at the edges, free translation in the plane normal to the support, and no displacement at supports in the plane parallel to the applied load. The research described in this report tends to substantiate the aforementioned assumptions, especially when center-of-plate deflections are large (six or more times plate thickness).