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21 of 30 <br /> PROJECT NO. SHEET NO. <br /> S221213-1XR <br /> PROJECT 4504 Evergreen Way, Everett, WA 98203 <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY° <br /> ENGINEERING&DESIGN BY NJ DATE 8/27/23 <br /> LOAD ANALYSIS: IBC 2018 2-STORY V <br /> BUILDING <br /> Typical Pile 6'-0"Span(Helical Pile 1-4): L/2 L/2 k <br /> Roof LL(snow ground):25 psf <br /> Floor LL:40psf <br /> Floor/Roof DL: 15psf I <br /> Wall DL: 12psf - - - - <br /> Stemwall DL: 100 psf(8"wall) <br /> Roof Trib: 0.5*28'span=14' <br /> 1st Floor Trib:=10' <br /> 2nd Floor Trib: 10' <br /> Typical Fir Ht: 10'*2 story=20'-0" <br /> 2-2 <br /> Case 2:Uniform Load: <br /> wo = (18"+ 8") <br /> 15psf*(14'+10'+10')+12psf*(20')=0.75k1f <br /> y <br /> WSL=25psf*(10')=0.25 klf <br /> WLL=40psf*(20')=.8 klf <br /> Pile and connection requirements per Pile and connection requirements per <br /> WrL=DL+SL+LL= contractor contractor <br /> 0.75k1f+0.25k1f+.8klf=1.8 klf(who stemwall) <br /> Case 1:Point Load(6'-0"span): 6r-0 max i <br /> Pot=0.75kif*6'-0"=4.5 kips <br /> Psa=0.25k1f*6-0"=1.5 kips <br /> NOTES: <br /> PLL=.8klf*6'-0"=4.8 kips 1. Both uniform and point loads analyzed in the following calculations.Uniform loads are <br /> assumed to be standard due to load distribution from bearing walls,however,the additional <br /> PTL lwto stemwall oil=1.8k1r6'-0"=10.8k point load is conservatively considered here for any major beam supports from above. <br /> 2. Maximum loading on the grade beam was determined by inspection of the building <br /> Refer to attached calculations for geometry and through conservative assumptions regarding span lengths and support <br /> analysis. wall/foundation. All concrete walls assumed full tributary span of floor and roof members. <br /> Conclusion: <br /> Based on the loading and geometry of the structure we conclude that the foundation <br /> may be stabilized through the use of piles and connections per R&R. These are to be <br /> attached to the stem-wall (grade-beam)at an on-center(o.c.)spacing no greater than <br /> 6'-0". <br /> LI20 ENGINEERING&DESIGN <br />