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Precast Slab - Transverse Reinforcement Question

Precast Slab - Transverse Reinforcement Question

Precast Slab - Transverse Reinforcement Question

(OP)
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?

RE: Precast Slab - Transverse Reinforcement Question

Try the "Bridge engineering" forum.

RE: Precast Slab - Transverse Reinforcement Question

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

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