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<br />BOTAS ENGINEERING, INC. <br /> <br />..... <br /> <br />Job Sunny Isles Restaurant <br /> <br />- <br />Sheet No. of <br /> <br />Consulting Engineers <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 />Flexure DeSign-Bottom Reinforcement <br /> <br />Dldll'<-~' of f. ot'o~ed bottom lonqltudlnal reinforcement: <br />Bar := G dr := Bar. 8- 'm dr = 0.8m Abar:= 0.0122' (Barln)2 <br /> <br />Distance from exterior compressive fiber to d := dt _ O. 5dr _ dst _ cov <br />centroId of tensional reinforcement : <br /> <br />( fc - 4KsIJ <br />pi := If fc < 4KsI ,0.85 ,0.85 - 0.05 . <br />f OOOpSI <br />~:= 0.9 <br />0.85 . fc ( 2 . MspanU ) <br />P t'= . I - l- <br />ac . 2 <br />fy 0.85. fc. ~ . b. d <br />'_ (0.85 . pI. fc 87000PSIJ <br />Pmax .- 0.75 . . <br />fy 87KsI + fy <br /> <br />Factor ~ I : <br /> <br />ReSistance factor <br /> <br />Remforcement ratio : <br /> <br />MaXimum reinforcing ratio: <br /> <br />Max. remforcement checkmg MaxRemfCheck:= If( Pact < P max' "OK" , "error" ) <br /> <br />2 <br />Abar = 0.44 m <br /> <br /> <br />P I = 0.77 <br /> <br />Pact = 0.0008 <br /> <br />Pmax = 0.02G8 <br /> <br />(*yi/.~~ '''''~~i:0>va~f'~tr0:/~\'~~~' <br />MaxRelnfChecK";:;;~ <br />," .,';0' ~), -'~.';1;-'~k.,' ,_.':;O-*"'M"->-i....).-':<"~:,~~<Ai' <~ <br /> <br />~. <br /> <br />2 <br />Area of Steel needed: As := Pact' b. d As = '.10 In <br />A f[ 3 . ..jfc . pSI 200 . pSI 3, ..jfc . pSI 200 . pSI J 2 <br />Min. steel area Smm:= I > , , ASmln = 4.83 m <br />fy fy fy . (b . d) - I fy. (b . d) - , <br />Reinforcement steel Asteel:= 'f( As < Asmln, If( As. I .33 < Asmln, As. 1 .33 , Asmln) , As) <br />to provide : <br /> <br />No. of bars to provide <br /> <br />(Asteel) <br />n := ceil - <br />Abar <br /> <br />Rebar's size : <br /> <br /> <br /> <br /> <br />Bottom Reinf. --> 4-#6 <br /> <br />61 <br />