Question

The structural steel framing plan of the figure represents a floor system for a narrow commercial building. The floor is to support a 6 in. thick reinforced concrete slab, a live load of 150 psf and an additional future load of 20 psf. Use the Allowable Stress Design (as per the class reference materials) and ASTMA36 steel for all members, use 0.6 Fy as the allowable stress for bending and 0.4 Fy for shear. Maximum deflection on beams and girders must not exceed L/200 (L in inches). Use a column height of 15 ft for design a) Design beams Bl, B2, b) Design girders Gl, G2, and G3 c) Design columns C1, C2, C3, C4, C5 and C6 d) Compute the beam and girder deflections and compare to the deflection limit above. Prepare shear and bending moment diagrams, label design output (beam and girder reactions), flexure checks (compared to allowable load), shear check (compared to allowable load) and show all calculations. Notes: 1. 2. 3. 4. 5. 6. 7. Do not design any connections or column base plates, just use the reactions from the beams and girders as the loads for the girders and columns. This is an extension of Homework No.1 which we went over in class. We went over the deflection analysis and column analysis in the last class. Use Appendix J to check the capacity of the column you select. Please select only one column that can carry the largest loading. Remember that the weak axis governs for column design. Do not consider eccentricity of the connections in the column connections. C1 C2 Exterior wall Gi B1 15-0 G2 C4 B2 C5 7-0 7-0 T-07-0 Exterior wall
seeking structural engineering help. please answer the entire question, showing all steps. thank you very much!

Answer 1

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