Loading...
REVIEWED BLD2022-1177+Structural_Calculations+9.2.2022_1.15.16_PM+3088726BLD2022-1177:............................................... REVIEWED BY CITY OF EDMONDS RECEIVED BUILDING DEPARTMENT:: ..............................................Sep 06 2022 SFA [lesign Group, LLC DECITY VELO MFEN SEDMOERV CES DEPARTMENT STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PORTLAND, OR I LIVERMORE, CA I SEATTLE, WA 503.641 .831 1 1 www.sfadg.com STRUCTURAL CALCULATIONS Kinnear Residence Underpinning 8523 216th St SW, Edmonds, WA 98026 Matvey Foundation Repair, Inc. EXPIRES: 04/04/24 LIMITATIONS ENGINEER WAS RETAINED IN A LIMITED CAPACITY FOR THIS PROJECT. DESIGN IS BASED UPON INFORMATION PROVIDED BY THE CLIENT WHO IS SOLELY RESPONSIBLE FOR ACCURACY OF SAME. NO RESPONSIBILITY AND/OR LIABILITY IS ASSUMED BY, OR IS TO BE ASSIGNED TO THE ENGINEER FOR ITEMS BEYOND THAT SHOWN ON THESE SHEETS. Project No. MFR22-157 August 30, 2022 5FA Design Group, LLC STRUCTURAL I GLOTLCHNICAL I SPECIAL INSPLCTIONS PROJECT NO. (SHEET NO. M FR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Push Pier Design Requirements MEK Structural Narrative The structural calculations and drawings enclosed are in reference to the design of the foundation underpinning of the 1-story residence located in Edmonds, WA as referenced on the coversheet. The round steel tubes and retrofit brackets are used to stabilize and/or lift settling foundations. The bottom and back portion of the bracket is securely seated against the existing concrete footing. Using the weight of the existing structure, pier sections are continuously hydraulically driven through the foundation bracket and into the soil below until a load bearing stratum is encountered. Lateral earth confinement and a driven external sleeve with a starter pier provide additional stiffness to resist eccentric loading from the foundation. Once all piers are installed, they are simultaneously loaded with individual hydraulic jacks and closely monitored as pressure is applied to achieve desired stabilization and/or lift prior to locking off the pier cap. The piers are required to resist vertical loading from the roof framing, wall framing, floor framing, , and concrete foundation. Underpinning the structure will remove lateral resistance provided by soil friction acting on the concrete foundation. Lateral resistance will be provided by passive earth pressures acting on concrete backfills encasing piers and soil friction acting on the unpiered portions of the concrete footing/concrete slab on grade and passive pressure acting on the buried footings perpendicular to the piered gridlines. There is no ICC-ES report currently approved for underpinning systems within Seismic Design Category D or higher, thus the entire underpinning system has been reviewed and analyzed and is therefore a fully engineered system complying with all current codes and stamped by a licensed design professional. Deep foundation guidelines, load combinations, special inspection and testing requirements per IBC 2018 have been included. Axial and bending capacities of the external sleeve, analysis of the retrofit foundation bracket, design reductions, and corrosion considerations have been incorporated in all required calculations per AISC 360-10. Concrete foundation span capacities have been analyzed per AC1318-14. Bracket fabrication welding has been performed by Behlen Mfg Co. conforming to AWS D1.1 performed by CWB qualified welders certified to CSA Standard W47.1 in Division 2. In addition, Behlen Mfg Co. has received US99/1690 certification meeting ISO 9001:2008 requirements by ANAB accredited SGS. General Building Department City of Edmonds Building Code Conformance (Meets Or Exceeds Requirements) 2018 International Building Code (IBC) 2018 International Residential Code (IRC) 2018 Washington Building Code 2018 Washington Residential Code Dead Loads Roof Dead Load 15.0 psf Floor Dead Load 15.0 psf Wood Wall Dead Load 12.0 psf Interior Wall Dead Load 9.0 psf Concrete 150.0 pcf Live Loads Roof Snow Load Floor Live Load (Residential) 25.0 psf 40.0 psf Pier Layout (See S2.1 for Enlarged Plan) 5 -00 BEAM ABOVE cy LLJ 10 779 ON GRADE (E) CRAWL SPACE 00 BEAM TYP 5FA Design Group, LLC PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Design Loads MEK (Worst Case Vertical Design Loads (Gridline A) Tributary Width To Pier = = 5.00 ft Load Type Design Load Tributary Length Line Load RoofDL = (15 psf) (14.44 ft) = 217 plf RoofSL = (25 psf) (14.44 ft) = 361 plf 1stFloorDL = (15 psf) (4.00 ft) = 60 plf 1 stFloor-L = (40 psf) (4.00 ft) = 160 plf InteriorWallDL _ (9 psf) (4.00 ft) = 36 plf ExteriorWallDL _ (12 psf) (9.00 ft) = 108 plf StemwallDL _ (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf Dead Load 3.520 kips Floor Live Load 0.800 kips Roof Snow Load 1.805 kips Controlling ASD Load Combination: D+0.75L+0.75S Max Vertical Load to Worst Case Pier 5.473 kips Max Unsupported Ftg Span from Arching Action 5.33 ft 5FA Design Group, LLC PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Design Loads MEK (Worst Case Vertical Design Loads (Gridline D) Tributary Width To Pier = = 6.00 ft Load Type Design Load Tributary Length Line Load RoofDL = (15 psf) (14.44 ft) = 217 plf RoofSL = (25 psf) (14.44 ft) = 361 plf 1stFloorDL = (15 psf) (4.00 ft) = 60 plf 1 stFloor-L = (40 psf) (4.00 ft) = 160 plf InteriorWallDL _ (9 psf) (4.00 ft) = 36 plf ExteriorWallDL _ (12 psf) (9.00 ft) = 108 plf StemwallDL _ (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf Dead Load 4.224 kips Floor Live Load 0.960 kips Roof Snow Load 2.166 kips Controlling ASD Load Combination: D+0.75L+0.75S Max Vertical Load to Worst Case Pier 6.568 kips Max Unsupported Ftg Span from Arching Action 5.33 ft [� 5FA Design Group, LLE ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. ISHEET NO. MFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY 2.875 in 0 Push Pier Svstem MEK Design Input Pier System Designation = 2.875 in 0 Pier Material = Black Steel External Sleeve Material = Black Steel Vertical Load to Pier, PTE = 6.568 kips Minimum Installation Depth, L = 10.000 ft Unbraced Length, I = 1.000 ft Eccentricity, e = 4.250 in Friction Factor of Safety, FS = 2 Normal Surface Force, Fn = 3.284 kips Design Load (Vertical), PAL = 6.568 kips Design Moment, MomenI = 27.914 kip -in Sleeve Property Input Sleeve Length = 36.000 in Design Sleeve OD = 3.397 in Design Wall Thickness = 0.169 in r = 1.143 in A= 1.710in2 S = 1.315 in' Note: Sleeve reduces bending stress on main Z = 1.in ' pier from eccentricty I = 2.23434 in E = 29000 ksi Fy = 50 ksi Z/PIER/ REACTION (E) WALL FRAMING (E) SLAB PIER CAP WITH ON GRADE THREADED RODS �IIIIII °lll III -1-1 I BRACKET vP„AEXCAVATION Pier Property y Input IIIw I Design Tube OD = 2.777 in w II IIIIIIIIIIIIIII Design Wall Thickness = 0.138 in J k= 2.10 III r = A= 0.934 in 1.147in2 III PIER Note: Design thickness of pier and sleeve c = 1.388 in based on 93% of nominal thickness perA1SC S = 0721 in' REACTION AT LOAD and the ICC-ES AC358 based on a corrosion Z = . 0.964 in' BEARING STRATUM loss rate of 50 years for zinc -coated steel = 1.001 in Note- Section above is a general representation of piering system, refer E = 29000 ksi to plan for layout and project specific details. Fy = 50 ksi Hyrdraulic Ram Area = 9.620 in' (Pier Output Per AISC 360-10 Doubly and Singly Symmetric Members Subject To Flexure and Axial Force kl/r = 26.98 OK, <200 §E2 Note: Flexural design capacity Fe = 393.103 ksi §(E3-4) based on combined plastic section 4.71 "(E/Fy) 5 = 113.43 §E3 modulous of pier and sleeve For = 47.408 ksi §(E3-2 & E3-3) Pn = 54.4 kips §(E3-1) Safety Factor for Compression, Q, = 1.67 Allowable Axial Compressive Strength, Pn/0, = 32.6 kips §E1 Actual Axial Compressive Demand, Pr = 6.568 kips D/tP1eY = 20.1 OK, <.45E/Fy §F8 Mn = 136.2 kip -in §(F8-1) Safety Factor for Flexure, Ob = 1.67 Allowable Flexural Strength, Mn/fib = 81.5 kip -in §F1 Actual Flexural Demand, Mr = 27.9 kip -in Combined Axial & Flexure Check = 0.51 OK §(H1-la & 1b) Results Max Load To Pier = Design Load = 6568 lb 2.875" Diameter Pipe Pier with 0.165" Thick Wall 3.5"Diameterx36" Long Pipe Sleeve With 0.216"ThickWall Minimum 10'-0" Installation Depth And Minimum 2000 psi Installation Pressure Minimum %" Foundation Lift During Installation 5FA Design Group, LLr STRUCTURAL I CIVIL I LAND USE PLANNING PROJECT Blank Residence Undeminnina SUBJECT SafeBase-LID I Capacity of 3/4"0 GRB7 (125ksi) Threaded Rod Tj=11 D = 0.750 in Ft = 125 ksi At = 0.344 in Capacity = 42.950 kips Block Shear at 1/4" Plate OO TBs= 0.3(58)(1/4)(4.625)+0.5(58)(1/4)(1)� = 27.369 kips Capacity of Weld i0 E70 Electrodes = 70 ksi Size of Fillet = 0.188 in Length of Weld = 6.000 in Capacity of Per Inch of Fillet = 2.784 kli Capacity of Fillet = 16.705 kips Capacity of 3/s" PlateO At = 1.125 in Ft = 21.600 ksi T = 24.300 kips I = 0.844 in° A = 1.125 in r = 0.866 in k = 1.00 I = 7.387 in kl/r = 9.0 Fa = 20.350 ksi S = 3.410 in Fb = 27.000 ksi RMAX = 30.857 kips Fv = 14.400 ksi VALLOW = 10.800 kips t Limiting System Factor Results 0/2 " Capacity of System (2 Sides) = 10.800(2)=21.600kips (Bracket Only) PROJECT NO. ISHEET NO. E L 16-004 DATE 5/3/2017 BY JPN 5FA Design Group, LLC PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Design Loads MEK (Worst Case Vertical Design Loads (Pin Pile) Tributary Width To Pier = = 5.50 ft Load Type Design Load Tributary Length Line Load Dead Load 2.746 kips ROOfDL = (15 psf) (4.00 ft) = 60 plf Floor Live Load 0.440 kips RoofSL = (25 psf) (4.00 ft) = 100 plf Roof Snow Load 0.550 kips 1stFloorDL = (15 psf) (2.00 ft) = 30 plf Controlling ASD Load Combination: 1 stFloor-L = (40 psf) (2.00 ft) = 80 plf D+0.75L+0.75S InteriorWallDL _ (9 psf) (2.00 ft) = 18 plf ExteriorWaIIDL _ (12 psf) (9.00 ft) = 108 plf StemwallDL _ (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf Max Vertical Load to Worst Case Pier 3.489 kips Max Unsupported Ftg Span from Arching Action 5.33 ft 5FA Design Group, LLC PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear 8/30/2022 SUBJECT BY Foundation Su000rtworks 2.375" in O Pin Pile Svstem MEK (Design Input Pin Pile System Designation = Standard, Sch 40 Vertical Load to Pier, PTL = 3.489 kips < 4 kips, OK Minimum Installation Depth, L = 10.000 ft Unbraced Length, I = 0.500 ft �/PILE/ REACTION Eccentricity, e = 4.250 in Friction Factor of Safety, FS = 2 (E) STEMWALL AND FOOTING Design Load (Vertical), PDL = 3.489 kips a (E) GRADE Design Moment, MomentPierDL = 14.828 kip -in PILE CAP ISleeve Property Input Sleeve Length = 0.000 in — EXCAVATION (- Design Sleeve OD = 2.822 in Design Wall Thickness = 0.176 inI- r = 0.937 in e A = 1.465 in2 �IIIIIII S= 0.912in' Note: Sleeve reduces bending stress on main Z = 0.000 in , _� _ _ 1 I Pier from eccentricty I = 1.287 iD° z -I I - —� ' FOUNDATION BRACKET �� E = Fy = 29000 ksi 50 ksi W I -III-I I I- z I —III— PNEUMATICALLY DRIVEN PILE (Pier Property Input z _—I s p I -I I I—' & EXTERNAL SLEEVE Design Tube OD = 2.328 in I I I I- Design Wall Thickness = 0.131 in I _—I HIM I k = 2.10 ` r = 0.778 in _ ` A = 0.902 in Note: Design thickness of pier and sleeve c = 1.164 in based on 93% of nominal thickness per A/SC S = 0.470 in, and the ICC-ES AC358 based on a corrosion Z = 0.632 in' loss rate of 50 years for zinc -coated steel I = 0.547 in REACTION AT LOAD BEARING STRATUM E = 29000 ksi Note: Section above is a general representation of pin pile system, Fy = 60 ksi refer to plan for layout and project specific details. (Pier Output Per AISC 360-10 Doubly and Singly Symmetric Members Subject To Flexure and Axial Force kl/r = 16.19 OK, <200 §E2 Note: Flexural design capacity Fe = 1091.880 ksi §(E3-4) based on combined plastic section 4.71 `(E/Fy) 5 = 103.55 §E3 modulous of pier and sleeve Fcr = 58.636 ksi §(E3-2 & E3-3) Pn = 52.9 kips §(E3-1) Safety Factor for Compression, nc = 1.67 Allowable Axial Compressive Strength, Pn/Oc = 31.7 kips §E1 Actual Axial Compressive Demand, Pr = 3.489 kips D/tP1er = 17.8 OK, <.45E/Fy §F8 Mn = 37.9 kip -in §(F8-1) Safety Factor for Flexure, Ob = 1.67 Allowable Flexural Strength, II = 22.7 kip -in §F1 Actual Flexural Demand, Mr = 14.8 kip -in Combined Axial & Flexure Check = 0.71 OK §(H1-la & 1b) Results Max Load To Pier = Design Load = 3489 Ib 2.375" Diameter Pipe Pier with 0.154" Thick Wall Minimum 10'-0" Installation Depth Drive Until Less Than 1" Movement is Observed in a 1 min Time Span With a 110LB (OR 1401-13) Pneumatic Hammer [� 5FA Design Group, LLC ®� PROJECT NO. SHEET NO. STRUCTURAL i GEOTECHNICAL i SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear 8/30/2022 SUBJECT BY Foundation Surmortworks FS238B Bracket MEK I Capacity of 5/8"0 GRB7 025ksi) Threaded Rod ]I=11 D = 0.625 in Ft = 125 ksi At = 0.226 in2 Capacity = 28.250 kips Block Shear at %" Plate i0 and i0 to i0 TBs = 0.3(58)(%)(6)+0.5(58)(%)(1) = 50.025 kips Capacity of %" Plate t0 At = 1.781 in Ft = 21.600 ksi T = 38.475 kips I = 0.004 in° A = 0.188 in r = 0.144 in k = 1.00 1=6.563in kl/r = 46.0 Fa = 20.350 ksi S = 0.431 in' Fb = 27.000 ksi RMAx = 7.714 kips Fv = 14.400 ksi VAt_t_ow = 29.025 kips IResults 1/4" FATE %" RAT E t Limiting System Factor Capacity of System (2 Sides) = 7.71(2)=15.42kips (Bracket Only) RATE 20 5FA Design Group, LLC PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Desion Loads MEK (Worst Case Vertical Design Loads (Floor Stabilizer) Tributary Width To Pier = = 6.00 ft Load Type Design Load Tributary Length Line Load Dead Load 1.152 kips 1stFloorDL = (15 psf) (8.00 ft) = 120 plf Floor Live Load 1.920 kips 1stFloon-L = (40 psf) (8.00 ft) = 320 plf Roof Snow Load 0.000 kips InteriorWallDL _ (9 psf) (8.00 ft) = 72 plf Controlling ASD Load Combination: D+L Max Vertical Load to Worst Case Pier 3.072 kips Steel Beam Description : Supplemental Steel Beam Calcs CODE REFERENCES Calculations per AISC 360-16, IBC 2018, CBC 2019, ASCE 7-16 Load Combination Set: ASCE 7-16 Material Properties Analysis Method: Allowable Strength Design Fy : Steel Yield : 50.0 ksi Beam Bracing : Completely Unbraced E: Modulus: 29,000.0 ksi Bending Axis: Major Axis Bending HSS3-1 /2x3-1 = 1.0 Applied Loads Beam self weight calculated and added to loading Loads on all spans... HSS3-1 /2x3-1 /2x3/8 Span = 8.0 ft 1/2x3-1/2x3/8 = 1.0 Service loads entered. Load Factors will be applied for calculations. Uniform Load on ALL spans : D = 0.0240, L = 0.040 ksf, Tributary Width = 8.0 ft DESIGN SUMMARY Maximum Bending Stress Ratio = 0.338 : 1 Section used for this span HSS3-1/2x3-1/2x3/8 Ma: Applied 3.950 k-ft Mn / Omega: Allowable 11.702 k-ft Load Combination +D+L Location of maximum on span 4.000ft Span # where maximum occurs Span # 2 Maximum Deflection Maximum Shear Stress Ratio = Section used for this span Va : Applied Vn/Omega : Allowable Load Combination Location of maximum on span Span # where maximum occurs Max Downward Transient Deflection 0.146 in Ratio = 655>=360 Max Upward Transient Deflection -0.056 in Ratio = 425 >=360 Max Downward Total Deflection 0.241 in Ratio = 398 -240 Max Upward Total Deflection -0.093 in Ratio = 258 >=240 Vertical Reactions 0.068 HSS3-1 /2x3-1 /2x3/8 2.107 k 30.758 k +D+L 8.000 ft Span # 2 Support notation : Far left is #1 Values in KIPS Load Combination Support 1 Support 2 Support 3 Support 4 Overall MINimum 0.620 0.620 D Only 1.033 1.033 +D+L 2.633 2.633 +D+0.750L 2.233 2.233 +0.60D 0.620 0.620 L Only 1.600 1.600 see comments in dwgs [� sFA Design Group, LLC PROJECT NO. SHEET NO. �] STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS IMFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Safebase Crawlspace Stabilizer Svstem MEK (E) FLOOR SHEATHING (E) FLOOR FRAMING TYP L(E) FLOOR BEAM (4'/2"W MIN) --TOP PLATE PER GENERAL NOTES W/ (4) JgXY WOOD SCREWS "THREADED ROD PER GENERAL NOTES THREADED CAP PER GENERAL NOTES \—MAIN TUBE PER GENERAL NOTES LIGHTFOOT FOOTING PER GENERAL NOTES (E) INTERIOR GRADE Note: Section above is a general representation of Stabilizer system, refer to plan for layout and project specific details. Tube Properties Safebase Crawlspace Stabilizer System = SB350 Pma. = 3.072 kips Maximum Tube Unbraced Length, dt = 3.000 ft Maximum Threaded Rod Unbraced Length, dtr = 3.000 in Eccentricity, e,ax = 1.000 in Moment = 3.072 in -kips Design Tube = 3.500 in Design Wall Thickness = 0.1196 in k = 1.00 r = 1.380 in A = 1.261 in c = 1.750 in S = 1.373 in 1 = 2.402 in E = 29000 ksi Fy = 50 ksi Tube Output Threaded Rod Properties Threaded Rod Output Bearing Capacity of LightFoot Base Results kl/r = 26.09 Cc = 107.00 F'e = 219.35 ksi Fa = 27.62 ksi fa = 2.44 ksi Fb = 33.00 ksi fb = 2.24 ksi Cm = 1.00 fa/Fa = 0.09 Eq H1-1 NA Eq H1-2 NA Eq H1-3 0.16 Threaded Rod Dia. = 1.250 in k = 1.00 r = 0.313 in A = 1.227 in c = 0.625 in S = 0.192 in 1 = 0.120 in E = 29000 ksi Fy = 70 ksi kl/r = 9.60 Cc = 90.43 F'e = 1619.74 ksi Fa = 40.79 ksi fa = 2.50 ksi Fb = 46.20 ksi fb = 16.02 ksi Cm = 1.00 fa/Fa = 0.06 Eq H1-1 NA Eq H1-2 NA Eq H1-3 0.41 Slenderness OK Eq H1-3 may be used Pier OK Slenderness OK Eq H1-3 may be used Tube OK Footing Depth = 5.50 in Footing Width = 18 in Footing Length = 18 in Soil Bearing Capacity = 1500 psf Capacity = 3.375 k OK MAX LOAD TO STABILIZER = 3072LB 3.5 IN DIAMETER SAFEBASE TUBE WITH 0.1196 IN. THICK WALL AND MAX HEIGHT OF 3FT 1.25 IN DIAMETER SOLID THREADED ROD WITH MAX HEIGHT OF 3 IN 24 IN SQR SAFEBASE LIGHT FOOT XL STABILIZER BASE EMBED THREADED ROD A MINIMUM OF 3/4 IN INTO CONFINING RING AND THREADED INSERT [� 5FA Design Group, LLC ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. ISHEET NO. MFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT JBY (Seismic Design Criteria IMEK ASCE 7-16 Chapters 11 & 13 Soil Site Class = D Tab. 20.3-1, (Default = D) Response Spectral Ace. (0.2 sec) SS = 128.20%g = 1.282g Figs. 22-1, 22-3, 22-5, 22-6 Response Spectral Ace.( 1.0 sec) S, = 45.10%g = 0.451g Figs. 22-2, 22-4, 22-5, 22-6 Site Coefficient Fa = 1.000 Tab. 11.4-1 Site Coefficient F = 1.850 Tab. 11.4-2 Max Considered Earthquake Ace. SMs = F,Sa = 1.282g (11.4-1) Max Considered Earthquake Ace. SM, = F,.S, = 0.834g (11.4-2) @ 5% Damped Design SDs = 2/3(SMs) = 0.855g (11.4-3) SD, = 2/3(SM,) = 0.556g (11.4-4) Risk Category = 11, Standard Tab. 1.5-1 Flexible Diaphragm §12.3.1 Seismic Design Category for 0.1 sec D Tab. 11.6-1 Seismic Design Category for 1.0 sec D Tab. 11.6-2 S1 < 0.75g N/A §11.6 Since Ta < .8Ts (see below), SDC =0 Exception of §11.6 does not apply §12.8 Equivalent Lateral Force Procedure A. BEARING WALL SYSTEMS Tab. 12.2-1 Seismic Force Resisting System (E-W) 15. Light -framed (wood) walls sheathed with wood structural panels rated for shear resistance or steel sheets A. BEARING WALL SYSTEMS Tab. 12.2-1 Seismic Force Resisting System (N-S) 15. Light -framed (wood) walls sheathed with wood structural panels rated for shear resistance or steel sheets C, = 0.02 x = 0.75 Tab. 12.8-2 Structural height h = 14.0 ft Structural Height Limit = 65.0 ft Tab. 12.2-1 C = 1.400 for Sp, of 0.556g Tab. 12.8-1 Approx Fundamental period, T. = C,(hn)" = 0.145 (12.8-7) TL = 12 sec Figs. 22-14 through 22-17 Calculated T shall not exceed <_ Cja = 0.203 Use T = 0.14 sec 0.8Ts = 0.8(SD1/SDs) = 0.521 Exception of §11.6 does not apply Is structure Regular & 5 5 stories ? Yes §12.8.1.3 Response Modification Coefficient R Over Strength Factor n. Importance factor la Seismic Base Shear V CS or need not to exceed, CS or Cs Min Cs Use Cs Design base shear V E-W = 6.5 = 2.5 = 1.00 = Cs W = Snc = 0.131 R/le Sn' = 0.591 (R/Ie)T SnIT, N/A TZ(R/Ie) 0.5S,1a/R N/A 0.131 0.131 W Max S ds <_ 1.0 N-S 6.5 2.5 1.00 CS W S" = 0.131 R/le S 1 = 0.591 (R/la)T S ,T N/A T2(R/le) 0.5S11a/R N/A 0.131 0.131 W Tab. 12.2-1 (foot note g) Tab. 11.5.1 (12.8-1) (12.8-2) For T <_ TL (12.8-3) For T > TL (12.8-4) =or S, >_ 0.6g (12.8-6) ® 5FA Design Group, LLC ®� STRUCTURAL I GEo7ECENicau I SPEP6 CAL iM"OI15 PROJECT NO. SHEET NO. MFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Wind Design Criteria MEK Wind Analysis for Low-rise Building, Based on ASCE 7-16 1 INPUT DATA Exposure category (26.7.3) B Basic wind speed (26.5.1) V = 97 mph Topographic factor (26.8 8 Table 26.8-1) KA = 1.00 Flat Building height to eave he = 9 ft r d Building height to ridge hr = 14 ft ` Building length L = 65 ft Building width B = 55 ft Ground Elevation Above Sea Level E = 457 ft Velocity pressure qh = 0.00256 Kh Kzt Kci Ke V^2 = 14.33 psf where: qh = velocity pressure at mean roof height, h. (Eq. 26.10-1 & Eq. 30.3-1) Kh = velocity pressure exposure coefficient evaluated at height, h, (Tab. 26.10-1) = 0.700 Kd = wind directionality factor. (Tab. 26.6-1, for building) = 0.85 Ke = ground elevation factor. (Tab. 26.9-1) = 1.00 h = mean roof height = 11.50 ft < 60 ft, Satisfactory (ASCE 7-10 26.2.1) Design pressures for MWFRS p = qh [(G Cpf)-(G CP; A Amin = 16 psf for wall area (28.3.4) where: p = pressure in appropriate zone. (Eq. 28.3-1). pmin = 8 psf for roof area (28.3.4) G Cp f = product of gust effect factor and external pressure coefficient, see table below. (Fig. 28.3-1) G Cp i = product of gust effect factor and internal pressure coefficient. (Tab. 26.13-1, Enclosed Building) 0.18 or -0.18 a = width of edge strips, Fig 28.3-1, note 9, MAX[ MIN(0.1B, 0.1L, 0.4h), MIN(0.04B, 0.04L), 31 = 4.60 ft INet Pressures (psf), Load Case A Roof angle 6 = 10.40 G Cp f Net Pressure with Surface (+GCp i) (-GCp i ) 1 0.45 8.98 3.82 2 -0.69 -7.31 -12.47 3 -0.41 -3.29 -8.45 4 -0.34 -2.30 -7.46 1E 0.68 12.30 7.14 2E -1.07 -12.76 -17.91 3E -0.65 -6.76 -11.92 4E -0.51 -4.67 -9.83 Roof angle 6 = 10.40 G Cp f Net Pressure with Surface (+GCp i) (-GCp i ) 1 -0.45 -3.87 -9.03 2 -0.69 -7.31 -12.47 3 -0.37 -2.72 -7.88 4 -0.45 -3.87 -9.03 5 0.40 8.31 3.15 6 -0.29 -1.58 -6.74 1 E -0.48 -4.30 -9.46 2E -1.07 -12.76 -17.91 3E -0.53 -5.02 -10.18 4E -0.48 -4.30 -9.46 5E 0.61 11.32 6.16 6E -0.43 -3.58 -8.74 s : 2E 5 �Ehtl UItl�S !� Load Case A ( ransxerse) Load Case B (LongRudinol) Basic Land Cases 5FA Design Group, LLC STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT PROJECT NO. SHEET NO. MFR22-157 DATE SUBJECT BY Existino Lateral Resistance Alono Gridline B MEK Footing/Foundation Wall Section Properties Foundation Width, b = 6 in Foundation Depth, d = 32 in Int Buried Footing Depth, df = 8 in AS OCCi iRc rninr Ext Exposed Footing Depth, dexp = 14 in CONSID Cross Sectional Area, A = 192 in MOMI Section Modulus, S. = 192 in SHEAR Gross Moment of Inertia, Ig = 16384 in4 AssumedConcjc= 2000 psi Footing/Foundation Wall Moment & Shear Capacity Per ACI318-14 Conc Modulus of Rupture, fr = 335 psi §19.2.3.1 Cracking Moment, Mcr = S*fr = 5.4 k-ft Flexure Reduction Factor, tp = 0.65 §21.2.2 Design Moment, (Mcr = 3.5 k-ft Shear Strength, Ve = 17173 Ibs §22.5.5.1 Shear Reduction Factor, (� = 0.75 §21.2.1 Design Shear, 0.5(�Vc = 6440 Ibs Note: Footing and foundation wall capacities are based on a worst case scenario of having no steel reinforcement Passive Pressure From Perpendicular Return Walls (Along Gridline B) T—�r-r Effective Friction Angle = 29' Passive Coefficient, Kip = tanA2*(45+0'/2) Kip = 2.88 Soil Unit Weight, y = 110 pcf STEMWALL p= Passive Pressure, P KpY=317pcf * EXT GRADE Ext Buried Soil Depth, de = d-12"-dexp = 0.5 ft 11I FOOTING INT GRADE Int Buried Soil Depth, di = df-12" = 0.0 ft 11 A = Pp*(de) = 79 psf a — — B = Pp*(di) = 0 psf RPext , Rpnt Y' Wext= A*de/2 = 40 Ofq = g Wint = B*di/2 = 0 plf Footina/Foundation Wall Loadin Note: Reference design Wert loads page of calculation package for load - 1 combinations. Wint L IV Exterior Length Due to Moment, Lea = �(8*�*fr*IgeA/(yt*We)Q)/2 = 5.00 ft Interior Length Due to Moment, Lint=A8*Vfr*Igint/(yt*weM)/2 = 0.00 ft Exterior Length Due to Shear, LeA = 0.5(�V"/we)d = 5.00 ft Interior Length Due to Shear, Lint = 0.& /taint = 0.00 ft Rpe#— wext*Lext = 198 Ibs Rpint= Wint*Lint = 0 Ibs Lateral Capacity, Rp= RpeA+Rpint = 198 Ibs Slab on Grade Frictional Resistance Slab Along This Line = No Soil Friction VRESiST= 0lbs Footing Frictional Resistance Along Gridline B Unpiered Portion of Gridline B = Yes Coeficient of Soil Friction = 0.30 Length of Resisting Line = 8 ft Dead Load Above = 0 plf Soil Friction VRESiST= 0 Ibs Note: Section about is a general representation of a concrete footing. Refer to plans for specific details Total available resistance along Gridline B = 198lbs + Olbs + Olbs + Olbs = 198lbs [� 5FA Design Group, LLC ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. ISHEET NO. M FR22-157 PROJECT DATE Kinnear Residence Underpinning 9/2/2022 SUBJECT BY Lateral Desian Loads Alona Gridline B IMEK Lind Base Shear Along Gridline B Loading Direction: Longitudinal End Zone (5E+6E) = 16.0 psf Tributary Width = 4.60 ft Tributary Height = 9.00 ft Design base shear VWIND = ASD(60%) base shear VWIND = Zone (5+6) = Tributary Width = Tributary Height = a= 2419 Ibs 1451 Ibs Seismic Controls 12E 2 p 1 M 1E 1E we {MLCIM �0 IM 01MMM Load Case A (ransrer9e) Load Cage B (Longiludlmil) Basic Lood 03as Seismic Base Shear Along Gridline B 16.0 psf 7.84 ft 14.00 ft 4.60 ft RoofDL = (15 psf) (14.44 ft) = 217 plf Base shear = 1 st FloorDL _ (15 psf) (12.44 ft) = 187 plf Trib Length = WalIDL = (12 psf) (4.50 ft) = 54 plf StemwallDL = (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf PerpWallsDL = (12 psf) (4.50 ft) (24.88 ft) = 1344 lb Design base shear VsEISMIC = 2757 Ibs ASD(70%) base shear VSEIS = 1930 Ibs /Seismic Controls Worst Case Lateral Load Along Gridline B = 1930 Ibs Total Available Lateral Resistance Along Gridline B = 198 Ibs Additional Lateral Resistance < 500 Ibs, OK By Inspection 0.131 W 27 ft ® 5FA sign Group, uc ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT SUBJECT Existino Lateral Resistance Alono Gridline D Footing/Foundation Wall Section Properties Foundation Width, b = 6 in Foundation Depth, d = 32 in Int Buried Footing Depth, df = 8 in OCCURS (NOT Ext Exposed Footing Depth, dexp = 14 in Cross Sectional Area, A = 192 in' COO NSIDERED F Section Modulus, S. = 192 in MOMENT OR Gross Moment of Inertia, Ig = 16384 in" SHEAR CAPACI AssumedConcjc= 2000 psi Footing/Foundation Wall Moment & Shear Capacity Per ACI318-14 Conc Modulus of Rupture, fr = 335 psi §19.2.3.1 Cracking Moment, Mcr = S*fr = 5.4 k-ft Flexure Reduction Factor, tp = 0.65 §21.2.2 Design Moment, (Mcr = 3.5 k-ft Shear Strength, Ve = 17173 Ibs §22.5.5.1 Shear Reduction Factor, (� = 0.75 §21.2.1 Design Shear, 0.5(�Vc = 6440 Ibs PROJECT NO. (SHEET NO. MFR22-157 DATE 8/30/ BY MEK b Note: Footing and foundation wall capacities are based on a worst case scenario of having no steel reinforcement Passive Pressure From Perpendicular Return Walls (Along Gridline D)� Effective Friction Angle = 29' Passive Coefficient, Kip = tanA2*(45+0'/2) Kip = 2.88 Soil Unit Weight, y = 110 pcf STEMWALL p= Passive Pressure, P KPY=317pcf * ExT GRADE Ext Buried Soil Depth, de = d-12"-dexp = 0.5 ft FOOTING I NT GRADE =III Int Buried Soil Depth, di = df-12" = 0.0 ft =1 A = Pp*(de) = 79 psf v — — — a -LIT I I-' B = Pp*(di) = 0 psf RPext r- I f2 a Pt we,,= A*de/2 = 40 OfA = _ = 6 wint = B*di/2 = 0 plf Footina/Foundation Wall Loadin Note: Reference design Wert loads page of calculation package for load - 1 combinations. Wint L IV Exterior Length Due to Moment, Lea = �(8*�*fr*IgeA/(yt*we)Q)/2 = 5.00 ft Interior Length Due to Moment, Lint=A8*Vfr*Igint/(yt*weM)/2 = 0.00 ft Exterior Length Due to Shear, LeA = 0.5(�V"/we)d = 5.00 ft Interior Length Due to Shear, Lint = 0.& /`^tint = 0.00 ft RPe#— wext*Lext = 198 Ibs RPint= wint*Lint = 0 Ibs Lateral Capacity, Rp= RpeA+Rpint = 198 Ibs Slab on Grade Frictional Resistance Slab Along This Line = No Concrete Weight = 150.0 pcf Soil Friction VREsiST= 0lbs Footing Frictional Resistance Along Gridline D Unpiered Portion of Gridline D = Yes Coeficient of Soil Friction = 0.30 Length of Resisting Line = 25 ft Dead Load Above = 704 plf Soil Friction VREsiST= 5280lbs Note: Section about is a general representation of a concrete footing. Refer to plans for specific details Total available resistance along Gridline D = 198lbs + Olbs + 5280lbs + Olbs = 5478lbs ® 5FA Design Group, LLC �7 STRUCTURAL I GEGTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. ISHEET NO. M FR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Lateral Desian Loads Alona Gridline D IMEK Lind Base Shear Along Gridline D Loading Direction: Longitudinal End Zone (5E+6E) = 16.0 psf Tributary Width = 4.60 ft Tributary Height = 9.00 ft Design base shear VWIND = ASD(60%) base shear VWIND = Zone (5+6) = 16.0 psf Tributary Width = 27.84 ft Tributary Height = 14.00 ft a = 4.60 ft 6899 Ibs 4139 Ibs Seismic Controls .Y 3 s a 1E i�ti s 1E 1 1E �EIIEI Od�IGt !O� �w0 awtr N 2' 7f �EC70 Load Case A (ransvorse) Load Gape B (Longiludirlol) Baaia Load Cases Seismic Base Shear Along Gridline D RoofDL = (15 psf) (34.44 ft) = 517 plf Base shear = 0.131 W 1st FloorDL _ (15 psf) (32.44 ft) = 487 plf Trib Length = 50 ft WallDL = (12 psf) (4.50 ft) = 54 plf StemwallDL _ (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf PerpWallsDL _ (12 psf) (4.50 ft) (64.88 ft) = 3504 lb Design base shear VsEISMIC = 9274 Ibs ASD(70%) base shear VSEIS = 6492 Ibs /Seismic Controls Worst Case Lateral Load Along Gridline D = 6492 Ibs Total Available Lateral Resistance Along Gridline D = 5478 Ibs Additional Lateral Resistance of 1014 Ibs Required 5FA Design Group, ux STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. SHEET NO. MFR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Concrete Backfill(s) Alono Gridline D MEK Effective Friction Angle = 29* Passive Coefficient, Kp = tanA2*(45+0'/2) 'SEE +"LE Kp = 2.88 nWH QPADE Passive Pressure, Pp= 2.88 * 110 = 317 pcf z� II ,Y--------- --. Cohesion, c' = 1500 psf Soil Unit Weight, y = 110 pcf III—IIII�III-11 III-11�11111— an iMc Depth of Backfill, d = 2.0 ft — — — —I . lll--Ill sImo- Width of Backfill, w = 1.5 ft �I I I—1III k { I— I I EI I Depth to Backfill, r = 2.0 ft o { f: Soil Neglected = 1.0 ft Backfill Depth Below Grade = 4.0 ft Passive Lateral Resistance Acting on Concrete Backfill Passive Pressure at Base, ap' = Pp*(d+r) 317pcf * (4 ft) = ap' = 1268 psf Lateral Capacity/Pier, Rp = ((A+B)/2)*d Rp=((A+B)/2)*d=((951 plf+1902 plf)/2)*2 ft = 2853 Ibs 1 ft NEGLECTED Depth to Backfill - 1 ft = 1 ft Depth of Backfill d = 2 ft Lateral Resistance per Pier (Kp*y*r)*w = 951 plf Rp = 2853 Ibs - _ (Kp*y*(r+d))*w = 1902 plf ap' = 1268 psf LOADING DIAGRAM PER PIER Concrete Backfill Spacing = 0.0 ft (013) P-Multiplier 1st Backfill = 1.00 Per AASHTO TABLE BELOW P-Multiplier 2nd Backfill = N/A (INTERPOLATION OK) P-Multiplier Other Backfills = N/A Number of Piers to Be Backfilled = 1 pier(s) Lateral Resistance of 1st Backfill = 1 * 2853 Ibs = 2853 Ibs Lateral Resistance of 2nd Backfill = N/A Lateral Resistance of Other Backfills = N/A Table 1a7.a4-1—r1Ie P-1H.K06rm6 P— f w M Mpk Raw shooing (avffafea from Hanmlga et al.. W" P1le =spacing (in the direcdon Df loadlao P-MuhS ers, P,e Row 1 Row 2 Row 3 and higher 3B 0.8 O.9 0.3 5B 1.0 0.85 0.7 Total Lateral Resistance of Piering System Total Lateral Resistance = 1 st Backfill + 2nd Backfill + Other Backfills + Slab on Grade + Unpiered Resistance + Passive Pressure on Footing Total Lateral Resistance = 2853lbs + Olbs + Olbs + 0 Ibs + 5280 Ibs + 198 Ibs = 8331 Ibs Factor of Safety = 1.1 Allowable Resistance = 7573 Ibs >6492 Ibs OK ® 5FA sign Group, uc ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT SUBJECT Existino Lateral Resistance Alono Gridline 1 Footing/Foundation Wall Section Properties Foundation Width, b = 6 in Foundation Depth, d = 32 in Int Buried Footing Depth, df = 8 in AS OCCURS (NOT Ext Exposed Footing Depth, dexp = 3 in CONSIDERED F Cross Sectional Area, A = 192 in3 MOMENT Section Modulus, S. = 192 in Gross Moment of Inertia, Ig = 16384 in" SHEAR CAPACI AssumedConcjc= 2000 psi Footing/Foundation Wall Moment & Shear Capacity Per ACI318-14 Conc Modulus of Rupture, fr = 335 psi §19.2.3.1 Cracking Moment, Mcr = S*fr = 5.4 k-ft Flexure Reduction Factor, tp = 0.65 §21.2.2 Design Moment, (Mcr = 3.5 k-ft Shear Strength, Ve = 17173 Ibs §22.5.5.1 Shear Reduction Factor, (� = 0.75 §21.2.1 Design Shear, 0.5(�Vc = 6440 Ibs PROJECT NO. (SHEET NO. MFR22-157 DATE 8/30/ BY MEK b Note: Footing and foundation wall capacities are based on a worst case scenario of having no steel reinforcement Passive Pressure From Perpendicular Return Walls (Along Gridline 1)� Effective Friction Angle = 29' Passive Coefficient, Kip = tanA2*(45+0'/2) Kip = 2.88 Soil Unit Weight, y = 110 pcf STEMWALL p= Passive Pressure, P KPY=317pcf * ExT GRADE Ext Buried Soil Depth, de = d-12"-dexp = 1.4 ft FOOTING I NT GRADE =III Int Buried Soil Depth, di = df-12" = 0.0 ft =1 A = Pp*(de) = 225 psf v — — — a -LIT I I-' B = Pp*(di) = 0 psf RPext r- I f2 a Pt wext= A*de/2 = 318 plf q = _ = 6 Wint = B*di/2 = 0 plf Footina/Foundation Wall Loadin Note: Reference design Wert loads page of calculation package for load - combinations. Wint L IV Exterior Length Due to Moment, Led = �(8*�*fr*IgeA/(yt*we)d)/2 = 5.00 ft Interior Length Due to Moment, Lint=A8*Vfr*Igint/(yt*`Nett)/2 = 0.00 ft Exterior Length Due to Shear, LeA = 0.5(�Vn/we)d = 5.00 ft Interior Length Due to Shear, Lint = 0.5VAint = 0.00 ft Rpe)d= weM*Lett = 1591 Ibs RPint= wint*Lint = 0 Ibs Lateral Capacity, Rp= RpeA+Rpint = 1591 Ibs Slab on Grade Frictional Resistance Slab Along This Line = No Concrete Weight = 150.0 pcf Soil Friction VREsiST= 0lbs Footing Frictional Resistance Along Gridline 1 Unpiered Portion of Gridline 1 = No Soil Friction VRESiST= 0 Ibs Note: Section about is a general representation of a concrete footing. Refer to plans for specific details Total available resistance along Gridline 1 = 1591lbs + Olbs + Olbs + Olbs = 1591lbs ® 5FA Design Group, LLC �7 STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. ISHEET NO. M FR22-157 PROJECT DATE Kinnear Residence Underpinning 8/30/2022 SUBJECT BY Lateral Desian Loads Alona Gridline 1 IMEK Lind Base Shear Along Gridline 1 Loading Direction: Transverse End Zone (1E+4E) = 16.0 psf Tributary Width = 9.20 ft Tributary Height = 9.00 ft End Zone (2E+3E) 16.0 psf Tributary Width = 9.20 ft Tributary Height = 9.00 ft Design base shear VWIND = ASD(60%) base shear VWIND = Seismic Base Shear Along Gridline 1 Zone (1+4) = 16.0 psf Tributary Width = 3.80 ft Tributary Height = 9.00 ft Zone (2+3) 8.0 psf Tributary Width = 3.80 ft Tributary Height = 9.00 ft a = 4.60 ft 3470 Ibs 2082 Ibs /Wind Controls j2E 1E IOaD�i Load Case A (Transverse) Load Case B (Longiludrnal) Basic Lood Cases ROofDL = (15 psf) (15.00 ft) = 225 plf Base shear = 0.131 W 1 st FloorDL _ (15 psf) (13.00 ft) = 195 plf Trib Length = 25 ft WallDL = (12 psf) (4.50 ft) = 54 plf StemwallDL _ (150 pcf) (6.00 in) (24.00 in) = 150 plf FootingDL = (150 pcf) (8.00 in) (16.00 in) = 133 plf PerpWallsDL _ (12 psf) (4.50 ft) (26.00 ft) = 1404 lb Design base shear VSEISMIC = 2662 Ibs ASD(70%) base shear VSEIS = 1864 Ibs Wind Controls Worst Case Lateral Load Along Gridline 1 = 2082 Ibs Total Available Lateral Resistance Along Gridline 1 = 1591 Ibs Additional Lateral Resistance < 500 Ibs, OK By Inspection