Answer Happy

Problem 3: A partial plan of an office building is shown. All structural steel is A36 steel. A typical column is 9 feet high. Draw and write neatly to receive full credits. Use a rule to make a drawing. Loads: a. Concrete floor: 6 in with C.U.W - 150 pcf b. 1-inch wood floor: 2.5 pcf c. Suspended fire-resistant ceiling 3.0 psf. d. Live Load - 80 psf e. Curtain Wall - 400 lb/ft (on girder) Find: 1. Design for Safety. Design loads on beams. (Use preliminary design tools tables) 2. Design for Safety: Design loads on girders. (Use preliminary design tools tables) 3. Model floor plan using STAAD Pro. 4. Draw the shear and moment of the girder or spandrel beam. 5. Design for Serviceability: Check deflection by hand calculations (for the girder between C4.C2 using Table 8.2 below), note that the maximum deflection due to LL on the beam should be less than Span/360, and the maximum deflection due to LL, on the girder should be less than Span/240). Find the deflection of the girders between C2 and i and C5, and C4 using STAAD PRO 6. Design all the steel beams and girders given the structures in Figure 3. Use STAAD Pro software for this task to practice using the design and analysis commands in this software. 7. Design for Safety: Design columns using STAAD Pro software and verify the STAAD design by hand solution using Method-3. Based on the preliminary design criteria, assume that the columns have an initial section of W14X90, 1 3 cs 4 C4 I -60 ft C2 1 -15--1- 1 -32 ft. 1 SZ B--- I- I- H H C3 Figure 3