Code Requirements for the Design of Precast Concrete Diaphragms for Earthquake Motions (ACI 550.5-18) and Commentary (ACI 550.5R-18)
|Publication Date:||1 June 2018|
This standard shall apply to precast concrete diaphragms and collectors that are part of the seismic-forceresisti
This standard shall apply to precast concrete diaphragms, including a) through c):
a) Diaphragms that consist of a cast-in-place composite topping slab with a thickness of less than 3 in. on precast concrete members
b) Diaphragms that comprise precast concrete members with end strips formed by either a cast-in-place composite topping or edge beams
c) Diaphragms of interconnected precast concrete members without cast-in-place concrete topping.