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21 of 35 <br /> PROJECT NO. SHEET NO. <br /> S220725-3XR <br /> PROJECT 1612 Rockefeller Ave Everett WA 98201 <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY° <br /> ENGINEERING&DESIGN BY JT DATE 09/22/2022 <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 L/2 111L/2 <br /> 11/ <br /> floor members and roof members. �I <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#9 2'-2" (18" + 8") <br /> Roof Trib=2'trib+2'overhang=4' <br /> Floor Trib=0.5*20'=10' <br /> Typical FIr Ht=15' <br /> Helical#11-12 <br /> Roof Trib=0.5*30'=15' <br /> Floor Trib=0.5*20'=10' \ Pile and connection requirements per Pile and connection requirements per <br /> Typical FIr Ht=15' contractor contractor <br /> Helical#13-14 <br /> Roof Trib=2'trib+2'overhang=4' <br /> Floor Trib=0.5*20'=10' <br /> Deck Trib=0.5*10'=5' <br /> Typical Fir Ht=15' 8'-0"MAX <br /> Helical #9 Helical #11-12 Helical #13-14 <br /> Case 1:Point Load(8'Span) Case 1:Point Load(6'Span) Case 1:Point Load(6'Span) <br /> Pile Reaction=890 plf*8'=7.2 k Pile Reaction=1330 plf*6'=8.0 k Pile Reaction=1265 plf*6'=7.6 k <br /> Pile Reaction w/SW=1140 plf*8'=9.2 k Pile Reaction w/SW=1580 plf*6'=9.5 k Pile Reaction w/SW=1515 plf*6'=9.1 k <br /> Case 2:Uniform Load Case 2:Uniform Load Case 2:Uniform Load <br /> -DL=12*15+15*(4+10)=390 plf -DL=12*15+15*(15+10)=555 plf -DL=12*15+15*(4+10+5)=465 plf <br /> -LL=40*10=400 plf -LL=40*10=400 plf -LL=40*10+60*5=700 Of <br /> -SL(snow)=25*4=100 plf -SL(snow)=25*15=375 plf -SL(snow)=25*4= 100 plf <br /> Total load=DL+LL+SL=890 plf Total load=DL+LL+SL=1330 plf Total load=DL+LL+SL=1265 plf <br /> Total load w/SW=DL+LL+SL= 1140 plf Total load w/SW=DL+LL+SL=1580 plf Total load w/SW=DL+LL+SL=1515 plf <br /> Refer to attached calculations for analysis. 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 8'-0"o.c.. <br /> L12O ENGINEERING&DESIGN <br />