Patent ID: 6385930
Filing Date: 2002-05-14
Classification: E04B,E04C

Abstract:
Concrete flat slab structure supported horizontally on at least one substantially vertical column (1), said slab structure having a body of cast concrete with a bottom surface and a top surface opposite thereto, a bottom flexural reinforcement net (7) embedded in said body adjacent the bottom surface, a top flexural reinforcement net (7â€²) embedded in said body adjacent the top surface, and, in an area immediately surrounding each column, a stirrup cage arrangement (3, 3â€²) made up of vertically oriented U-shaped bars (4) interconnected in spaced relationship by longitudinally extending horizontal bars (5), as well as two or more bent bars (8) laid substantially at right angles to each other over the column end, each of said bent bars (8) running substantially along said bottom flexural reinforcement net (7) except at the columns where the bent bars run substantially along said top flexural reinforcement net (7â€²), characterized in that the longitudinally extending horizontal bars (5) of the stirrup cage arrangement (3,3â€²) are disposed in a non-interlocking manner on top of the bottom flexural reinforcement net (7) and that said top flexural reinforcement net is disposed in a non-interlocking manner on top of the stirrup cage arrangement.