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HomeMy WebLinkAboutMiscellaneous - Exception (36)Kanayo Lala, P.E. .............03/03/2014 PROJECT: Merrimack Condominiums F -TYPE BB -Compass Point, N Andover, MA DESIGN FOR - GIRDERS/JOISTS /RAFTERS Third Floor Beam T3-STEEL(Altemative) Su[)aortina Floor & Point Load From T1 & T2 LOADS: DEAD LOAD 20.00 PSF 360.00 PLF Ce= 1 CF= 1.00 SNOW LOAD PSF 0.00 PLF Cq= 1 Cs= LIVE LOAD 30.00 PSF 540.00 PLF qs= 29.10 Cd= 1 TOTAL LOAD 900 PLF 1= 1 Cm= 1 WIND SPEED 100 MPH 29.10 PSF POINT LOAD 16477 LBS 3.25 FT Ra= 13327 LBS 7650 LB =TOTAL REACTION TRIBUTARY WIDTH 18.00 LF E= 29000000 PSI JOIST/GIRDER SPAN 17 LF Fb= 24000 PSI WIDTH- IN 6.50 36KSI W12X30 12.34 IN = d Fv= 16200 PSI ROOF PITCH - N:12 = Fc-- 24000 PSI Fcp= 405 PSI MOMENT= 32513 LB -FT MOMENT2= 43313 LB -FT 38.60 =S provided OK S= 37.91 IN^3 210.00 = Deflection = 0.278 IN = U 392 For Total Load Required U240 Deflection2 = 0.242 IN = U 654 For Live Load Required U360 Fcp'= 359 PSI OK 9.00 In Bearing Length FV= 10,200 PSI OK W 12X30, DEPTH=12.34" AND FLANGE WIDTH=6.5".�� USE 2-LVLs 117/8" FOR BEAM T4. pF i{IINAYC