Summary of Large-and Small-Scale Unreinforced Masonry Test Program

摘要

A five-year, large-and small-scale, static and dynamic experimental research program, in which more than 700 tests were conducted, has demonstrated that unreinforced masonry infills are more ductile and resist lateral loads more effectively than anticipated by conventional code procedures. The tests were conducted both in the laboratory and on existing structures at the Department of Energy's Y-12 National Security Complex. The experimental data indicate that the combination of a steel frame and infill material effficiently resists lateral loads - the infilling provides significant lateral stiffness while the surrounding frame adds ductility and confinement to the overall system.