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Home My WebLink AboutMiscellaneous - Exception (38)Kanayo Lafa, P.E. .............03/03/2014 PROJECT: Merrimack condominiums F -TYPE EE -Compass Point, N Andover, MA DESIGN FOR - GIRDERS/JOISTS /RAFTERS Third Floor Beam ETI Supporting Floor & Wall LOADS: DEAD LOAD 23.78 PSF 237.80 PLF Ce= 1 CF= 1.00 SNOW LOAD PSF 0.00 PLF Cq= 1 Cs= LIVE LOAD 33.00 PSF 330.00 PLF qs= 29.10 Cd= 1 TOTAL LOAD 568 PLF 1= 1 Cm= 1 WIND SPEED 100 MPH 29.10 PSF POINT LOAD LBS FT Ra= 0 LBS 5181 LB =TOTAL REACTION TRIBUTARY WIDTH 10.00 LF E= 2000000 PSI JOIST/GIRDER SPAN 18.25 LF Fb= 2900 PSI WIDTH- IN 12.25 PSL/LVL 9.25 IN = d Fv= 285 PSI ROOF PITCH - N :12 = Fc-- 2700 PSI Fcp= 750 PSI MOMENT= 23639 LB -FT MOMENT2= 0 LB -FT 174.69 =S provided OK S= 97.82 IN^3 807.94 = I Deflection = 0.877 IN = U 250 For Total Load Required L/240 Deflection2 = 0.000 IN = U 430 For Live Load Required U360 Fcp'= 282 PSI OK 1.50 In Bearing Length Fv'= 69 PSI OK USE BETTERHEADER #60 (FLITCH BEAM) 2-LVLs 9 1/4" WITH 5/8" STEEL PLATE BOLTED WITH 5/8" DIA BOLTS @ 12" O.C. IN TWO ROWS.