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16of32 <br />LONGITUDE <br />ONE TWENTY° <br />ENGINEERING & DESIGN <br />PROJECT <br />PROJECT NO. SHEET NO. <br />1:1 ' <br />4230 Grand Ave, Everett, WA 98203 <br />SUBJECT Foundation Stabilization/Jacking <br />BY NJ DATE 9/13/22 <br />LOAD ANALYSIS: IBC 2018 - 2-STORY <br />BUILDING <br />Typical Pile 8'-0" Span(Piles 3-7): <br />Roof LL (snow ground): 25 psf <br />Floor LL: 40psf <br />Floor/Roof DL: 15psf <br />Wall DL: 12psf <br />Deck LL: 60psf <br />Stemwall DL: 100 psf (8" wall) <br />Roof Trib: 0.5*25' span = 12.5' <br />Floor Trib: 0.5*20' max span = 10' <br />Typical Flr Ht: 10' *1 story =10'-0" <br />Case 2: Uniform Load: <br />WDL = <br />15 p sf* (12.5'+ 10' )+ 12 psf* (10')=0.458 klf <br />WDL (Stemwall) = 100pSf* 2.5ft= .25k1f <br />WSL=25psf*(12.5')= 0.313 klf <br />WLL=40psf*(10')= 0.4 klf <br />WTL= DL+SL+LL = <br />0.458klf+0.313klf+.4klf = 1.17 klf (wlo <br />stemwall) <br />0.458klf+0.313kif+0.25klf+.4kif= 1.42k1f <br />(w/ stemwall) <br />Case 1: Point Load (8'-0" span): <br />PDL= 0.458klf*8'-0" = 3.7 kips <br />PDL (stemwall)= 0.25klf*8'-0" = 2 kips <br />PSL= 0.313klf*8'-0" = 2.5 kips <br />PLL= .4klf*8'-0" = 3.2 kips <br />PTL (wlo stemwall DL) = 1.17k1f*8'-0"= 9.36k <br />PTL (wl stemwall DL) = 1.42*8'-0"= 11.36k <br />Refer to attached calculations for <br />analysis. <br />---------------------- I ------------ --- <br />L/2 te L/2 <br />NOTES: <br />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 />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 />geometry and through conservative assumptions regarding span lengths and support <br />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 />8'-0". <br />L120 ENGINEERING & DESIGN <br />