For the slab of Problem 12-3, assume that double 2 × 10 stringers spaced 5 ft-0 in. o.c. will support the joists. Determine the maximum shore spacing. Draw a sketch of the formwork. (Neglect shore capacity)
Problem 12-3
A 6-in.-thick concrete slab is to be formed using plywood supported on 2 × 8 (S4S) joists that are spaced 1 ft-6 in. on center. Find the maximum allowable stringer spacing if maximum allowable deflection is 1/240 of the span. Draw a sketch of the formwork.