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Composite Floor Slab - Construction Joints

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Greetings and Salutations:
I recently designed a three story building using composite floor beams and girders for the second and third floors.  The bays are 25'-0 square.  The floor is 150'-0 x 200'-0, (30,000 SF / floor).  The floor is a total of 4" thick on 1 1/2" composite deck.  In addition to the mesh, we have #4 x36" at 12"OC placed 3/4" clear top of the slab at all beams and girders.
The question is this:  Are there any rules of thumb or reference materials available to define the type and spacing of floor joints?

Bobby Jenkins, P.E.
Jenkins Engineering, Inc.
PO Box 2101 / 218 S Thomas St  Suite 209
Tupelo, MS  38803
(662)840.1233 V / (662)840.1103 F
E-mail:  jei(--nospam--at)