Evolution of the L-shaped spandrel beam

摘要

Numerous PCI-sponsored research projects over the years have endeavored to improve the design of precast concrete components. One such component is the beam with an integral ledge. Beams with ledges may be inverted-T shaped or L shaped. This Research Corner will describe research funded by PCI pertaining to the L-shaped beam, also called an L beam. The PCI-funded research had a profound impact on the evolution of design procedures for such beams.