Welded wire in Composite Slab

[puszka]

Hi,

I have designed a Can-am P-3615 composite slab for a project save for the specification of the wire mesh. I used the can-am techical guide for my design, but it states at the end that the design engineer is responsible for specifying the welded wire fabric.

I can't find anything pertaining to composite slabs within the Concrete Design Handbook. From my understanding, the moment and shear resistance comes from the deck and concrete working together, not the wire. Is the wire simply needed as temperature/shrinkage reinforcement? In that case, do I need to specify the type which would provide 0.002Ag as for a slab?

Thanks for the help!

 

[OldDawgNewTricks]

The deck manufacturers that I am familiar with recommend minimum wire mesh reinforcement equal to 0.00075 times the concrete area, but not less than 6x6-W1.4xW1.4. This is the minimum for temperature and shrinkage and also for diaphragm shear. However, you often need to provide additional reinforcement at negative moment regions over supports for crack control. In recent years, manufacturers have started to allow fiber reinforcement as an alternative to wire mesh.

 

[puszka]

Thanks @OldDawgNewTricks!