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• • 18 of 27 <br /> A PROJECT NO. SHEET NO. <br /> S230726-1 XR <br /> PROJECT 1049 Crown Dr Everett WA 98203 <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY° <br /> ENGINEERING&DESIGN BY JT DATE 09/17/2023 <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, I <br /> all concrete walls assumed full tributary span of 4 L/2 L/2 <br /> floor members and roof members. �I1 <br /> Design code:IBC 2018 <br /> Roof LL(snow ground):25 psf <br /> Floor LL:40 psf <br /> Patio/Deck LL:60 psf <br /> Floor/Roof DL:15 psf <br /> Wall DL: 12 psf <br /> Conc Wall DL: 150pcf x 240 in2=250 plf <br /> *see following pages for area calc <br /> Helical Pile#1-2,8-10 2'-2" (18" + 8") <br /> Roof Trib=0.5*32'=16' <br /> Floor Trib=0.5*20'=10' <br /> Typical Fir Ht=10' <br /> Helical Pile#3-7 <br /> Roof Trib=2'trib+2'overhand=4' <br /> Floor Trib=0.5*12'=6' \ Pile and connection requirements per Pile and connection requirements per / <br /> Typical Fir Ht=10' contractor 1 contractor - J <br /> 7'-0"MAX <br /> Helical Pile#1-2,8-10 Helical Pile #3-7 <br /> Case 1:Point Load(7'Span) Case 1:Point Load(7'Span) <br /> Pile Reaction=1310 plf*7'=9.2 k Pile Reaction=610 plf*7'=4.3 k <br /> Pile Reaction w/SW=1560 plf*7'=11.0 k Pile Reaction w/SW=860 plf*7'=6.1 k <br /> Case 2:Uniform Load Case 2:Uniform Load <br /> -DL=12*10+15*(16+10)=435 plf -DL=12*10+15*(4+6)=270 plf <br /> -LL=40*10=400 plf -LL=40*6=240 plf <br /> -SL(snow)=25*16=400 plf -SL(snow)=25*4=100 plf <br /> Total load=DL+LL+SL=1310 plf Total load=DL+LL+SL=610 plf <br /> Total load w/SW=DL+LL+SL=1560 plf Total load w/SW=DL+LL+SL=860 plf <br /> Refer to attached calculations for analysis. Refer to attached calculations for analysis. <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 7'-0"o.c.. <br /> L120 ENGINEERING&DESIGN <br />