6- A 1-story fire station is to be constructed of 6-inch thick reinforced concrete tilt-up exterior walls with a wood framed roof and wood structural panel roof diaphragm assigned to Seismic Design Category (SDC) D, SDS = 0.76, SD = 0.44, and Site Class C. Use a concrete density of 145 pounds per cubic foot. Roof 0 Section Determine the strength design bending moment (at the roof level) for the design of the 4-foot tall cantilever parapet shown.