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<br />-- <br /> <br />BobaI8R8SlERING, INC. <br /> <br />Job Sunnv Isles Restaurant <br /> <br />Consulting Engineers <br /> <br />Sheet No. of <br /> <br />Patricia M. Botas - Florida license # 41829 <br />7875 NW 12th Street, Suite 120 - Miami, Fl33126 <br /> <br />Calculated by DBC Date 5/2010 <br />Checked by PMB Date 5/2010 <br /> <br />3.8. Concrete Border Beam BB-I <br /> <br />- Flexural AnalysIs <br /> <br />- Materials and 5ectlon Data <br /> <br />Cross Section : <br /> <br />Concrete * Masonry: <br /> <br />Width of Beam: b:= 12m <br /> <br />Strength : <br /> <br />fc := 5500pSl <br /> <br />Remforcmq Steel : <br />Yield Strength: fy:= GOKsI <br /> <br />Depth of Beam: dt:= 3Gm <br /> <br />Weight of <br />concrete : <br /> <br />wc := I 50pcf <br /> <br />Clear rebar <br />cover : <br /> <br />cov := 3m <br /> <br />Masonry <br />self-welqht: <br /> <br />wwall := G8pSf <br /> <br />- Beam span * Tributary lenqth : <br /> <br />Beam span: Lbeam:= 25ft + Om Tributary Lenqth at roof: Ltrlb I := 5ft + Gm <br /> <br />- Beam Loads : <br /> <br />Beam's Dead loads <br /> <br />Beam self-weight: <br /> <br />Wbeam.5W := wc . dt . b <br /> <br />Wbeam.5W = 450 plf <br />wbeam.DL I = 550 plf <br /> <br />Slab Dead Load on beam: <br /> <br />Wbeam.DL I := Ltnb I 51abDL <br /> <br />WDL := wbeam.SW + Wbeam.DLI <br /> <br />WDL = I 000 plf <br /> <br />Beam's live loads <br /> <br />Live Load on beam: <br /> <br />Wbeam.LL := Ltnb I FloorLL <br /> <br />Wbeam.LL = 550 plf <br /> <br />WLL := wbeam.LL <br /> <br />WLL = 550 plf <br /> <br />Bendmt3 Moments and Shear <br /> <br />Span moment DL : <br /> <br />M -I L 2 <br />SpanDL:= f I WDL beam <br />M -I L 2 <br />spanLL:= I I WLL beam <br /> <br />MspanDL = 57 Kip ft <br />MspanLL = 3 I Kip ft <br /> <br />Span moment LL : <br /> <br />Mspanu := 1.2' MSpanDL + I.G' MSpanLL <br /> <br />,\;r~' <br /> <br />...,."......-..."'"'-'.~,, .~ <br />f;b.2'\Kt:: ff4 <br />~'~'_i;;:i--..;;~~-~ti{~ <br /> <br />Span Ultimate Moment: <br /> <br /> <br />Support moment DL : <br /> <br />M -I L 2 <br />SUPPDL := 9 wDL beam <br />M -I L 2 <br />SUPPLL := 9 WLL beam <br /> <br />MSUPPDL = G9 Klpft <br /> <br />MSUPPLL = 38 Kip ft <br />~,?/>~-'~'. ,<~X~jo.r.., ',;",- ',r~'F"'<S;' ,~:rF'-~~'~' -t'?;;:. ~, <br />tM;~'~ef1>~~~ ;:1~~1:,~~;'s~f,ti <br /> <br />Support moment LL : <br /> <br />Support Ultimate Moment: <br /> <br />MsupPU := f.2' MSUPPDL + f.G' MSUPPLL <br /> <br />52 <br />