Precast Slab - Transverse Reinforcement Question 1

[astructurale]

I am designing a 12" deep precast slabs that span over a creek at a residence to resist HS20-44. (2-10ft wide, 20ft span, 2" composite topping) I have designed it for flexural capacity and shear, and it meets the deflection and crack criteria. How do I specify the transverse steel? Is there a minimum required by ACI 318-99? The only examples I can find are for transverse slab design when you have stems supporting the slab, and this is not a stemmed member. Or is stripping and handling the only case I need to design for in the transverse direction?

 

[swine]

Try the "Bridge engineering" forum.

 

[tincan]

For main reinf parallel to traffic % bottom slab transverse reinf = [100/(span)^0.5]amt main reinf
.....span in feet...so for a 20' span use 23% of the main reinf

This is 1992 AASHTO, but its all I have at Home, Use nominal T&S in top of slab.

Best, Tincan