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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, FL 33126 <br /> <br />Calculated by DBC Date 5/2010 <br /> <br />Checked bv PMB Date 5/2010 <br /> <br />3.3. Concrete Beam RTB-3 - Flexural AnalysIs <br /> <br />- Materials and 5ectlon Data <br /> <br />Cross Section : <br /> <br />Width of Beam: 1zv:= 8m <br /> <br />Concrete " Masonry: <br />Strength: ~:= 5500pSI <br /> <br />Remforcmq Steel : <br />Yield Strenqth : ~:= GOKsI <br /> <br />Depth of Beam: ~:= 12m <br /> <br />Weight of <br />concrete : <br /> <br />~:= 150pcf <br /> <br />Clear rebar <br />cover : <br /> <br />~:= 2m <br /> <br />- Beam span * Tributary lenqth <br /> <br />Beam span : <br /> <br />.~.:= 12ft + 2m <br /> <br />Tnbutary Length at roof: <br /> <br />~:~ Gft + 2m <br /> <br />- Beam Loads : <br /> <br />Beam's Dead loads <br /> <br />Beam self-weight: <br /> <br />~:=wc'dt.b <br />~};JJ".:= Ltrlb RoofDL <br /> <br />Wbeam.5W = Jooplf <br />WRoof.DL = /54 plf <br /> <br />Roof DL on beam : <br /> <br />~:= Wbeam.5W + WRoof.DL <br /> <br />WDL = 254 plf <br /> <br />Beam's live loads <br /> <br />Roof Live Load on beam: <br /> <br />~:= Ltrlb' RoofLL <br /> <br />WRoof.LL = 123 plf <br />wLL = 123.3 plf <br /> <br />~:= WRoof.LL <br /> <br />Bendmq Moments and Shear <br /> <br />Span moment DL : ~:= , I - I WDL Lbeam 2 <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 = 3 Kip ft <br />MspanLL = 2 Kip ft <br /> <br />~~~~~,~~~~~~~~~~ <br />MSl?anif;::::::C;;8 KJt?~;::f6 <br /><{:,~~_ ~J~:\"M-: ._,,_'C*, --",:~,-", cL~~;,<;~~r:;f~!,,-;:,,;'f_! <br />~'~'~-~""l--^"""',;;~_""_": 1lrJ.:' ~~~ <br /> <br />S DL I\A - I L 2 <br />upport moment: .~:= 9 wDL beam <br />S I\A - I L 2 <br />upport moment LL : ~:= 9 wLL beam <br /> <br />Support Ultimate Moment: ~:= 1.2' MsuPPDL + /.G' MsuPPLL <br /> <br />MsuPPDL = 4 Kip ft <br />MsuPPLL = 2 Kip ft <br /> <br />'''t!,,~'''~~~~' .~"1-._:~<(?'/\~+')'~q1<""'f:g;~'~a <br /> <br />~>~~g~.~; ~}:t~Ef1j ~~ <br /> <br />30 <br />