چكيده فارسي :
Structural modern systems have an increasing evolutionary trend, so that with the advancement of science in the structural behavior of constructed structures,Examples of these structures can be Waffle roofs,In this study, by modeling the waffle roof with a framing frame system, and considering the same system for the solid slab and the comparison of these two structural groups together, in addition to obtaining the coefficient of behavior of the wafer ceiling, it was concluded that the ceiling of the waffle, due to its lighter ability to perform better Structured.