The floor plan shown defines the column locations and floor framing layout for Level 2 of...

   

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The floor plan shown defines the column locations and floor framing layout for Level 2 of a building. For member B1, your colleague selected a noncomposite W24x68 (A992 steel). Required: a) Show that your colleague's selection is inadequate for the applied loads. b) Select a cover plate (A36 or A572 steel) that will be welded onto the bottom flange to retrofit B1 and make it adequate for the applied loads. d) c) Design the fillet welds that will be used to attach the cover plate to the beam. Check the local slenderness of the cover plate and indicate in which region it falls (compact, noncompact or slender). Are you concerned about local buckling occurring in this cover plate? e) Calculate the maximum live load deflection for B1 with the chosen cover plate (but no contribution from the concrete slab). Notes: Loads: Dead = 80 psf (65 concrete/steel + 15 superimposed); Live = 125 psf. Assume all beams and girders are noncomposite (slab only provides load). Assume all beams and girders are fully braced at top flange. ● N 20' B 10' C 10' 20' E 10' F) 26' *H -I- 22' I * (w) B1 C $1 G3 28' Framing Plan - Level 2 4 14' G1 G2 19 14' -I The floor plan shown defines the column locations and floor framing layout for Level 2 of a building. For member B1, your colleague selected a noncomposite W24x68 (A992 steel). Required: a) Show that your colleague's selection is inadequate for the applied loads. b) Select a cover plate (A36 or A572 steel) that will be welded onto the bottom flange to retrofit B1 and make it adequate for the applied loads. d) c) Design the fillet welds that will be used to attach the cover plate to the beam. Check the local slenderness of the cover plate and indicate in which region it falls (compact, noncompact or slender). Are you concerned about local buckling occurring in this cover plate? e) Calculate the maximum live load deflection for B1 with the chosen cover plate (but no contribution from the concrete slab). Notes: Loads: Dead = 80 psf (65 concrete/steel + 15 superimposed); Live = 125 psf. Assume all beams and girders are noncomposite (slab only provides load). Assume all beams and girders are fully braced at top flange. ● N 20' B 10' C 10' 20' E 10' F) 26' *H -I- 22' I * (w) B1 C $1 G3 28' Framing Plan - Level 2 4 14' G1 G2 19 14' -I