The floor-to-floor height is 15ft. The plan dimensions are 72ft108ft. The main structural system is a steel frame structure. The floor is to be concrete on metal deck supported on joists and girders. The roof is flat and made of metal decking. Use X-braces for the LFRS. Use A992 steel for all structural members. Design Tasks: 1. Layout: Architectural considerations determine that columns are uniformly spaced 36 ft center-to- center along the longer direction and 24 ft center-to-center along the shorter direction, and that the lateral bracing is at the perimeter in the middle bays in both directions. In each floor, a. Determine a joist spacing based on maximum deck spans [you have to come back to this after having determined loadings on the roof and floor slabs in step 2] b. Determine the directions for the joists and girders and provide reasoning. C. What is the orientation of the columns made of W sections