Elevated Concrete Floor Ibc

Photos and figures by magnusson klemencic associates inc.

Elevated concrete floor ibc.

Floor levelness can affect finishes like this office door. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Floors in garages of buildings used for the storage of motor vehicles shall be designed for the uniformly. First floor upper floors wholesale all floors walkways and elevated platforms other than exit ways yards and terraces pedestrian 20 0 96n 100 4 79 same as occupancy served as approved by authority having jurisdiction 5 0 24 nonreducible 5 0 24 nonreducible and based on the tributary area of the roof supported by the frame 20 0 96.

Deflection of form w o r k and s h o r ing during concrete p l a c e m e n t deflection of unshored stru c t u ra l members during concre t e. Its more than just forms and pouring concrete. 5 beam camber can be taken out of the steel from preloading and the level floor finish can be more feasible. Built based upon the design floor to floor height fig.

Additional support for the floor joists is achieved by nailing the ends of the joists into headers. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Variables affecting floor pitch. Section r502 10 of the international residential code states that header joists can be the same size as the floor joists when the header joist span isn t greater than 4 feet but if the header joist span is more than 4 feet you ll need to double the header joist and ensure that it s capable of.

The ibc international building code specifies a uniformly distributed live load of 40 pounds per square foot psf which would be the same as non sleeping areas of a residence for garage floors along with the requirement of. L is not to be specified for elevated unshored construction. Effects of concrete placing and fin ishing operations on floor flatness will be discussed in a subsequent a rt i c l e. The slab has to be at least 3 5 thick and possibly thicker for expansive or other difficult soils.

The dead load break down for such a floor is as follows. 5 regular weight concrete worse case 60 psf 12 0 psf in thickness. Contractor and engineer responsibilities an out of level elevated slab may be caused by. Preloading two bays with concrete prior to screeding has been used to achieve the level floor finish in elevated slab construction.