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<br />BOTAS ENGINEERING, INC. <br /> <br />Job Sunny Isles Restaurant <br /> <br />Consulting Engineers <br /> <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 /> <br />Checked bv PMB Date 5/2010 <br /> <br />3.2. Concrete Beam RTB-2 - Flexural AnalysIs <br /> <br />- Materials and 5ectlon Data <br /> <br />Width of Beam: 1z..:= 12m <br /> <br />Concrete * Masonry: <br />Strength: ~:= 5500pSl <br /> <br />Remforcmq Steel : <br />Yield Strenqth : ~:= GOKsI <br /> <br />Cross Section : <br /> <br />Depth of Beam: ~:= 241n <br /> <br />Welqht of <br />concrete : <br /> <br />iIIJiv..:= 1 50pcf <br /> <br />Clear rebar <br />cover : <br /> <br />~:=2m <br /> <br />- Beam span.. Tributary lenqth <br /> <br />Beam span : <br /> <br />~.:= 20ft+Om <br /> <br />Tnbutary Length at roof: <br /> <br />Ltrlb := Gft + 10m <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 = 300 plf <br />WRoof.DL = 171 plf <br /> <br />Roof DL on beam : <br /> <br />WRoof.DL := Ltr,b RoofDL <br /> <br />:J::/J)J.,.,.:= Wbeam.5W + WRoof.DL <br /> <br />WDL = 47 1 plf <br /> <br />Beam's live loads <br /> <br />Roof Live Load on beam: <br /> <br />WRoof.LL := Ltr,b' RoofLL <br /> <br />WRoof.LL = 137 plf <br />WLL = 13G.7 plf <br /> <br />~:= wRoof.LL <br /> <br />Bendm'3 Moments and Shear <br /> <br />Span moment DL : ~:= I I - I wDL Lbeam 2 <br /> <br />S L I\A - I L 2 <br />pan moment L: ~:= I I wLL beam <br /> <br />Span Ultimate Moment: ~.:= 1.2' MspanDL + I.G' MspanLL <br /> <br />MspanDL = 17 Kip ft <br />MspanLL = 5 Klpft <br /> <br />j_,'j,~~!m~;'~*'!r~r;(k~~'~"-d: ,,,;~,;3M!~ <br />M" .'0.' .....PN." .I('......,.ri! <br />spanLJ;",=~ 28.5:'''-Ie,~"n~ <br />t~~~~A~~,m~$h~a <br /> <br />S DL I\A - I L 2 <br />upport moment: .~:= 9 wDL beam <br />S LL I\A - I L 2 <br />upport moment: ,~:= 9 wLL beam <br /> <br />Support Ultimate Moment: .~:= 1.2' MsuPPDL + I.G' MsuPPLL <br /> <br />MsuPPDL = 2 I Kip ft <br />MsuPPLL = G Kip ft <br /> <br />,;,,'-~i}-:"~:"t_~:.;~,~~~ ~.-?&~;.,:,:,,~:~~;~~~ <br />Msu . o'b 4'34.8 Ki";'. re <br />". ,'. J~RU,.'1 . ..... ....':0>>.. B>...,., <br />%"~~'" ~~~:'~<!'t..,.~~%,.,~~t:'\f ~~;.~.;;. ..~'""*,.;~~ <br /> <br />26 <br />