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• 19 of 24 <br /> A PROJECT NO. SHEET NO. <br /> S200831-1 <br /> Ti <br /> PROJECT 4514 Seahurst Ave, Everett, WA 98203 <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY° <br /> ENGINEERING&DESIGN BY ZT DATE 11/20/2020 <br /> Maximum loading on grade beam determined <br /> based on building geometry,and through <br /> conservative assumptions regarding span <br /> lengths and support walls/foundation.Basically, <br /> all concrete walls assumed full tributary span of <br /> floor members and roof members. L/2 11' L/211/ <br /> Design code:IBC 2015 <br /> Roof LL(snow ground):25 psf - - - - <br /> Floor LL:40 psf <br /> Floor/Roof DL:15 psf <br /> Wall DL:10 psf <br /> Conc Wall DL: 150pcf x 240 in2=250 plf <br /> *see following pages for area calc <br /> Roof Trib =0.5*35'=17.5' 2'-2" (18" + 8") <br /> Floor Trib=0.5*15'=7.5' <br /> Deck Trib=4' <br /> Typical Fir Ht=20' <br /> Typical Piles <br /> Case 1:Point Load(8'Span) \ Pile and connection requirements per Pile and connection requirements per <br /> contractor contractor <br /> Reaction=1712.5 plf*8'=13.7 k <br /> Reaction w/SW=1962.5 plf*8'=15.7 k <br /> Case 2:Uniform Load <br /> � 8'-0"MAX <br /> -DL=200+15*(17.5+7.5+4)=635 plf TRIB WIDTH <br /> -LL=40*7.5+60*4=540 plf <br /> -SL(snow)=25*(17.5+4)=537.5 plf <br /> Total load=DL+LL+SL=1712.5 plf <br /> Total load w/SW=DL+LL+SL=1962.5 plf <br /> Refer to attached calculations for analysis. <br /> NOTE: Window and door headers will distribute <br /> the loading to the piles.Therefore additional <br /> concrete beam calculations are required to <br /> determine foundation spanning capacity. <br /> Conclusion: <br /> Based on the loading and geometry of the structure we conclude that the foundation may be stabilized through the use of piles and <br /> connections per R&R.These are to be attached to the stem-wall(grade-beam)at an on-center(o.c.)spacing no greater than 8'-0"o.c.. <br /> L12O ENGINEERING&DESIGN <br />