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21 J2°1 <br /> PROJECT NO. SHEET NO. <br /> ri—'iti, S221012-3XR <br /> 41.00� 1213 Hoyt Ave Everett WA 98201 <br /> PROJECT y <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY° <br /> ENGINEERING&DESIGN BY JT DATE 12/02/2022 <br /> Maximum loading on grade beam determined <br /> based on building geometry,and through <br /> \il/conservative assumptions regarding span <br /> lengths and support walls/foundation. Basically, <br /> all concrete walls assumed full tributary span of X L/2 L/2 <br /> floor members and roof members. 11/ <br /> Design code: IBC 2018 I <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 1' <br /> Conc Wall DL: 150pcf x 240 in2=250 plf <br /> *see following pages for area calc <br /> Helical Pile#10-11,14 2-2rr (18r, + 8") <br /> Roof Trib=0.5*26'= 13' <br /> Floor Trib=0.5*10'=5' <br /> Typical FIr Ht= 10' y <br /> Concentric Pile#1-2 <br /> Roof Trib=0.5*10'=5' <br /> Floor Trib=0.5*20'= 1 0' \ Pile and connection requirements per Pile and connection requirements per <br /> Typical Fir Ht= 15' contractor contractor <br /> Concentric Pile#3 — <br /> Roof Trib=0.5*26'+8'=21' <br /> Floor Trib=0.5*(8'+16')= 12' <br /> Typical Fir Ht= 15' i 6'-0"MAX <br /> Helical Pile #10-11,14 Concentric Pile #1-2 Concentric Pile #3 <br /> Case 1: Point Load(6'Span) Case 1: Point Load(8'Span) Case 1: Point Load(6'Span) <br /> Pile Reaction=915 plf*6'=5.5 k Pile Reaction=930 plf*8'=7.5 k Pile Reaction= 1680 plf*6'= 10.1 k <br /> Pile Reaction w/SW= 1165 plf*6'=7.0 k Pile Reaction w/SW=1180 plf*8'=9.5 k Pile Reaction w/SW= 1930 plf*6'= 11.6 k <br /> Case 2: Uniform Load Case 2: Uniform Load Case 2: Uniform Load <br /> -DL= 12*10+15*(13+5)=390 plf -DL=12*15+15*(5+10)=405 plf -DL= 12*15+15*(21+12)=675 plf <br /> -LL=40*5=200 plf -LL=40*10=400 plf -LL=40*12=480 plf <br /> -SL(snow)=25*13=325 plf -SL(snow)=25*5=125 plf -SL(snow)=25*21 =525 plf <br /> Total load=DL+LL+SL=915 plf Total load= DL+LL+SL=930 plf Total load=DL+LL+SL= 1680 plf <br /> Total load w/SW=DL+LL+SL= 1165 plf Total load w/SW=DL+LL+SL= 1180 plf Total load w/SW= DL+LL+SL= 1930 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 6'-0"o.c.. <br /> LI20 ENGINEERING&DESIGN <br />