CMCE 2416 Elements of Structural Design - Concrete Assignment 2: Slab Design as a part of floor system Purpose: To apply techniques learned to the design of a reinforced concrete slab for moment. Directions: The proposed building is a two-story commercial office building. At this stage as an engineer, you should design a one-way slab as a part of floor system at roof for just one span, according to the information provided in the following: Design Criteria: Roof area is 60'x80'. In 60' direction, there are 4 columns, which have divided the width of the roof to 3 equal spans. In 80' direction, there is just one span (No column in between). There are beams at 80' direction; therefore, the slab is supported at all sides. Concrete construction is normal weight concrete with f'c = 4000 psi. Reinforcing steel is new and conforming to ASTM A615 grade 60 (fy=60,000 psi). Assume that each span is separate from others, and simply supported. You can ignore the width of columns, in order to find the L of span. The slab is supported in all four sides. Roof Loads: 310 lb/ft2 dead load