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<br />BOT AS ENGINEERING, INC. <br /> <br />Job <br /> <br />Sunny Isles Restaurant <br /> <br />- <br />Sheet No. <br /> <br />of <br /> <br />Consulting Engineers <br /> <br />Calculated by DBC Date 5/2010 <br /> <br />Patricia M. Botas - Florida license # 41829 <br />7875 NW 12th Street, Suite 120 - Miami, FL 33126 <br /> <br />Checked by PMB Date 5/2010 <br /> <br />3. Concrete Beams DeSign <br />3. I . Concrete Beam RTB- I - Flexural AnalysIs <br /> <br />- Materials and 5ectlon Data <br /> <br />Width of Beam: b:= 8m <br /> <br />Concrete * Ma5onry: <br />Strenqth : fc := 5S00psI <br /> <br />R.emforcmq Steel : <br />Yield Strenqth : fy:= GOKsI <br /> <br />Cro55 Section : <br /> <br />Depth of Beam: ~:= 241n <br /> <br />Welqht of <br />concrete : <br /> <br />wc := I sopcf <br /> <br />Clear rebar <br />cover : <br /> <br />eov := 2m <br /> <br />Masonry <br />self-welqht: <br /> <br />wwall := G8psf <br /> <br />- Beam span 4: Tributary len'3th : <br /> <br />Beam span : <br /> <br />Lbeam := 1 7ft + I om <br /> <br />Tributary Length at roof: <br /> <br />Ltrlb I := Gft + .Iom <br /> <br />Beam'5 Dead load5 <br /> <br />Roof Dead Load on beam: <br /> <br />Wrbeam.5W := we. dt. b <br />Wbeam. DL I := Ltrlb I RoofDL <br /> <br />wrbeam.5W = 200 plf <br />Wbeam.DL I = 171 plf <br /> <br />Beam self-weight: <br /> <br />WDL := Wrbeam.5W + Wbeam.DL I <br /> <br />WDL=37Iplf <br /> <br />Beam'5 live load5 <br /> <br />Live Load on beam: <br /> <br />Wbeam.LL := Ltrlb I RoofLL <br /> <br />Wbeam.LL = 13G.7 plf <br />WLL = 13G.7 plf <br /> <br />WLL := Wbeam.LL <br /> <br />Bendmt3 Moments and Shear <br /> <br />Span moment DL : <br /> <br />M - I L 2 <br />spanDL := 1 I wDL beam <br />M - I L 2 <br />spanLL:= I I wLL beam <br /> <br />MspanDL = I I Kip ft <br />MspanLL = 4 Kip ft <br /> <br />Span moment LL : <br /> <br />Span Ultimate Moment: <br /> <br />Mspanu := 1.2' MspanDL + I.G' MspanLL <br /> <br /> <br />21 <br />