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HomeMy WebLinkAboutMiscellaneous - Exception (32)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 T1 Supporting Floor, Wall, Attic & Point Load From T5 LOADS: DEAD LOAD 22.54 PSF 323.00 PLF Ce= 1 CF= 1.00 SNOW LOAD PSF 0.00 PLF Cq= 1 Cs= LIVE LOAD 30.00 PSF 429.90 PLF qs= 29.10 Cd= 1 TOTAL LOAD 753 PLF 1= 1 Cm= 1 WIND SPEED 100 MPH 29.10 PSF POINT LOAD 3510 LBS 3.25 FT Ra= 2925 LBS 7341 LB =TOTAL REACTION TRIBUTARY WIDTH 14.33 LF E= 2000000 PSI JOIST/GIRDER SPAN 19.5 LF Fb= 2900 PSI WIDTH- IN 10.50 PSULVL 11.875 IN = d Fv= 285 PSI ROOF PITCH - N:12 = Fc-- 2700 PSI Fcp= 750 PSI MOMENT= 35786 LB -FT MOMENT2= 9506 LB -FT 246.78 =S provided OK S= 187.42 IN^3 1465.24 = I Deflection = 0.836 IN =U 240 For Total Load Required U240 Deflection2 = 0.139 IN =U 421 For Live Load Required LJ360 Fcp'= 652 PSI OK 1.50 In Bearing Length Fv'= 123 PSI OK USE BETTER HEADER#65 (FLITCH BEAM) 2-LVLs 117/8- WITH 1/2"STEEL PLATE �x OF BOLTED WITH 5/8"DIA@12"O.C. IN TWO ROWS. yyo