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Home My WebLink AboutB17-2831 000-000-000• ",fir--°" " •s,, .4 F1 y ; '�• i •' ` • • CIVIL ENGINEERS 6 SUF�/EVORS • r ,' 888 Manzanita Ct., Suite 101, Chico, CA 95926 530-894-3500 Fax 530-894-8955 ►',, _ robe rtsonerickson.com ' re �• z �Y� F j'" •� '. F i December 201.7 _ r 'Retaining Wall Calculations '' ,. ; � I' °` • - - For . - . -. _ .• .. •.. ' ; •.J '_ 5 County Cente' Dr. — Path of Travel •, r - _ . " Oroville, CA, r . BUTTE i COLTIM DEC �'2"201 DEVEL0PMEN1 _ SERVICpq .. t PERMIT #_ �•. BUTTE COUNTY DEVELOPMENT SERVICES s 'REVIEWED FOR 5 "• t CODE COMPLIANCE DATE t i. Use menu item Settings > Printing 8 Title Block to set these five lines of information for your program. Title Butte County Page: -r _w Job # 17-516 Dsgnr: ELR Date: 20 DEC 2017 Description.... 3 ft. Max. Wall This Wall in File: c:.lusers\erobertsonldocumentslretain pro 10 project fileslbutte co 17-516.rpx.RPX RetainPro (c) 1987-2015, Build 11.15.7.02 License: KW -06053878 Cantilevered Retaining Wall Design ;ode: CBC 2013,ACI 318-11,ACI 530-11 License To : Robertson Erickson Civil Engineers & Surveyors 416 psf OK Criteria 1,500 psf I Soil Data ACI Factored @ Toe = 823 psf Retained Height = 3.00 ft Allow Soil Bearing = 1,500.0 psf Footing Shear @ Heel = Wall height above soil = 0.00 ft Equivalent Fluid Pressure Method Sliding Calcs T' Lateral Sliding Force = Slope Behind Wall = 2.00 Heel Active Pressure = 35.0 psf/ft Strength Leve lbs = Moment.... Actual Height of Soil over Toe = 0.00 in Passive Pressure = 350.0 psf/ft ft-# _ . ft-# Water height over heel = 0.0 ft Soil Density, Heel = 110.00 pcf Strength Leve psi = Shear..... Allowable psi = Soil Density, Toe = 0.00 pcf Rebar Depth 'd' in= Masonry Data FootingllSoilFriction = 0.400 Fs psi = Solid Gr t' - Soil height to ignore ti " for passive pressure = 12.00 in =^ - Surcharge Loads Surcharge Over Heel = 0.0 psf Used To Resist Sliding & Overturning Surcharge Over Toe = 0.0 psf Used for Sliding 8 Overturning Axial Load Applied to Stem Axial Dead Load = 0.0 lbs Axial Live Load = 0.0 lbs Axial Load Eccentricity = 0.0 in Design Summary Wall Stability Ratios Overturning = 3.97 OK Slab Resists All Sliding ! Total Bearing Load = 1,505 lbs ...resultant ecc. = 1.31 in Soil Pressure @ Toe = 678 psf OK Soil Pressure @ Heel = 416 psf OK Allowable = 1,500 psf Soil Pressure Less Than Allowable ACI Factored @ Toe = 823 psf ACI Factored @ Heel = 505 psf Footing Shear @ Toe = 0.0 psi OK Footing Shear @ Heel = 4.9 psi OK Allowable = 75.0 psi Sliding Calcs fb/FB + fa/Fa Lateral Sliding Force = 401.8 lbs Lateral Load Applied to Stem Lateral Load = 0.0 #/ft ...Height to Top = 0.00 ft ...Height to Bottom = 0.00 ft The above lateral load Thickness has been increased 1.00 by a factor of Wind on Exposed Stem = 0.0 psf (Strength Level) Stem Construction 3.00 Design Height Above Ftc ft = Wall Material Above "Ht" _ Design Method = Thickness = Rebar Size = Rebar Spacing = Rebar Placed at = Design Data 0.300 fb/FB + fa/Fa = Total Force @ Section Wind, W 1.000 Service Level lbs = Strength Leve lbs = Moment.... Actual Service Level ft-# _ Strength Leve ft-# _ Moment.... Allowable ft-# Shear..... Actual Service Level psi = Strength Leve psi = Shear..... Allowable psi = Wall Weight psf = Rebar Depth 'd' in= Masonry Data fm psi = Fs psi = Solid Gr t' - 2nd Adjacent Footing Load 3.00 Adjacent Footing Load = 0.0 Ib Footing Width = 0.00 ft Eccentricity = 0.00 in Wall to Ftg CL Dist = 0.00 ft Footing Type Line Load Base Above/Below Soil Center _ at Back of Wall - 0.0 ft Poisson's Ratio = 0.300 Bottom f c Stem OK Bar Lap/Emb 3.00 0.00 Concrete Concrete LRFD LRFD 6.00 8.00 # 5 # 5 16.00 18.00 Center Edge 0.000 0.048 267.8 267.8 2,851.7 5,527.6 3.6 75.0 75.0 75.0 100.0 3.00 6.19 Vertical component of active lateral soil pressure IS ou mg Modular Ratio 'n' - _ considered in the calculation of soil bearing pressures. Short Term Factor = Load Factors Equiv. Solid Thick. _ Building Code CBC 2013 -,ACI Masonry Block Type = Medium Weight Dead Load 1.400 Masonry Design Method = ASD Live Load 1.700 Concrete Data Earth, H 1.700 f c psi = 2,500.0 2,500.0 Wind, W 1.000 Fy psi = 60,000.0 60,000.0 Seismic, E 1.000 L!pe rnenu item Settings > Printing & Title Block Title Butte County Page: to set these five lines of information Job # 17-516 Dsgnr: ELR Date: 20 DEC 2017 for your program. Description.... 3 ft. Max. Wall This Wall in File: c:luserslerobertsonldocumentsVetainpro 10 project fileslbutte co 17-516.rpx.RPX RetainPro (c)1987-2015, Build 11.15.7.02 License : KW -06053878 Cantilevered Retaining Wall Design ;ode: CBC 2 License To: Robertson Erickson Civil Engineers & Surveyors .013,ACI 318-11,ACI 530-11 Footing Dimensions &Strengths Footing Design Results Toe Width = 0.50 ft Too Heel Heel Width = 2.25 Factored Pressure = 823 505 psf Total Footing Width = 2.75 Mu': Upward = 100 710 ft-# Footing Thickness = 12.00 in Mu': Downward = 26 1,485 ft-# Key Width = 12.00 in Mu: Design = 74 775 ft-# Key Depth = 0.00 in Actual 1 -Way Shear = 0.00 4.89 psi Key Distance from Toe = 0.92 ft Allow 1 -Way Shear = 75.00 75.00 psi 641.8 Stem Weight(s) = Toe Reinforcing = None Spec'd Pc = 2,500 psi Fy = 60,000 psi Heel Reinforcing = # 5 @ 18.00 in Footing Concrete Density = 150.00 pcf Key Reinforcing = # 5 @ 12.00 in Min. As % = 0.0018 Cover @Top 2.00 @ Btm: 3.00 in Other Acceptable Sizes & Spacings 1.42 Toe: Not req'd: Mu < phi'5'lambda'sgrt(Pc)'Sm 200.9 2.75 552.3 Heel: Not req'd: Mu < phi'5'lambda'sgrt(Pc)'Sm 1,504.8 lbs R.M.= 2,546.0 Key: Slab Resists Sliding - No Force on Key of Overturning & Resisting Forces & Moments Item Heel Active Pressure = Surcharge over Heel = Surcharge Over Toe = Adjacent Footing Load = Added Lateral Load = Load @ Stem Above Soil = Force Distance Moment lbs ft ft-# 401.8 1.60 Total 401.8 O.T.M. Resisting/Overturning Ratio = 3.97 Vertical Loads used for Soil Pressure = 1,504.8 lbs Force Distance Moment lbs ft ft-# 641.8 Soil Over Heel = 522.5 1.96 1,023.2 Sloped Soil Over Heel = 68.9 2.22 153.2 Surcharge Over Heel = Adjacent Footing Load = Axial Dead Load on Stem = ' Axial Live Load on Stem = Soil Over Toe = Surcharge Over Toe = 641.8 Stem Weight(s) = 300.0 0.83 250.0 Earth @ Stem Transitions = Footing Weight = 412.5 1.38 567.2 Key Weight = 1.42 Vert. Component = 200.9 2.75 552.3 Total = 1,504.8 lbs R.M.= 2,546.0 ' Axial live load NOT included in total displayed or used for overtuming resistance, but is included for soil pressure calculation. Vertical component of active lateral soil pressure IS considered in the calculation of Sliding Resistance. Vertical component of active lateral soil pressure IS considered in the calculation of Overturning Resistance. Tilt Horizontal Deflection at Toa of Wall due to settlement of soil (Deflection due to wall bending not considered) Soil Spring Reaction Modulus 250.0 pci Horizontal Deft @ Top of Wall (approximate only) 0.021 in The above calculation is not valid If the heel soil bead Q oressure exceeds that of the toe because the.wall would then tend to rotate into the retained'soil f s Restrain 6° 2-3o �•'' #518'• , - , • "' � •, .. . ' Q Heel Butte County Department of Development Services TIM SNELLINGS, DIRECTOR PETE CALARCO, ASSISTANT DIRECTOR 7 County Center Drive Oroville, CA 95965 Butte County 530.538.7601 Office DEVEIOPMENf SERVICES 530.538.7785 Fax www.buttecounty.net December 18, 2017 Thomas Cowles F 2081 2nd St Oroville, CA 95965 Assessor Parcel Number: 031-040-039 Building Permit Number: B17-2831 Plan Check #1 Description: Parking /W Accessible Stalls And Lighting Occupancy Classification: B/U Construction Type: ? Stories: 1 Fire Sprinklers: No " Thank you for submitting permits for your building project. The permit documents have been reviewed and " comments are listed below. Please respond in writing to each comment. Complete and clear responses will expedite the re -check and approval of this project. Please provide two complete revised sets of plans for re- check. I 4 GENERAL COMMENTS: 1. Add the following Code references on the cover sheet: (Items added to cover sheet) _ 3 A. 2016 California Building Code (CBC) ' B. 2016 California Plumbing Code (CPC) ' C. 2016 California Electrical Code (CEC) D. 2016 California Fire Code (CFC) r . E. 2016 California Energy Code (CEnC) ! F. 2016 California Green Building Standards Code. I r 2. Please provide a Scope of Work on the cover sheet of the plans. (Scope added to cover sheet) ' NON-STRUCTURAL COMMENTS: 3. Update detail 2 on Sheet C3 to indicate required weep screed clearance of 4" to earth or 2" to concrete. 2016 CBC Section 2512.1.2 (Detail updated on C3) 4. Detail 3/E101 is not legible. Provide legible detail. (resubmitted) 1 , 4 % ACCESSIBILITY COMMENTS: AC 1. Where the "ADA" is being used on the plans, update to "Accessible" or "Accessibility". NO "ADA" found in plans AC2. Indicate landing at top of curb ramps to be a minimum of 48"' in path of travel. CBC Section 1 l B- 406.5.3 Top of curb ramp note added to Sheet C3.0 I AC3. Indicate the new accessible parking stall shown on Sheet C2 shall comply with details on Sheet C6, or provide dimensions and slopes per CBC Section 11 B. Stall in the North side by the Public Works yard. The accessible parking stall and loading area are being changed to regular parking stalls by the public works yard. AC4. Update Detail 2 on Sheet C6 to indicate International Symbol of Accessibility to be minimum of 36"X36". Changed detail 2 on sheet C6.0 to show International Symbol of Accessibility, to be minimum of 36"06". ACS. Provide an additional sign per 2016 CBC Section 11 B-502.8: "Unauthorized vehicles parked in designated accessible spaces not displaying distinguishing placards or special license plates issued for persons with disabilities will be towed away at owner's expense. Towed vehicles may be reclaimed at or by telephoning ." Sign is already in place on the back of the stop sign at the southwest return of the driveway and County Center Drive. AC6. Clarify curb ramp shown on West side of the building shows a vertical curb of 6" high, but this should actually have a ramp leading to the new path of travel leading to ramp under Permit B 17-2831. The curb ramp that runs east to west will slope down to the landing with the curb on the north side staying at 6" height similar to Case "F" shown on Caltrans Std. A88A. ACT Indicate path of travel slope at sidewalk to be 1:20, 5% max, unless it is a curb Path of travel note added to sheet C3.0. AC8. ramp. T-24 ENERGY COMPLIANCE COMMENTS: Tl. Please provide the outdoor lighting compliance energy documentation. (2016-NRCC-LTO) (submitted on plans) CGBSC "CALGREEN" COMPLINACE COMMENTS: CG 1. Provide a Construction Waste Management form. (Obtain from Building Department Counter) 2016 CalGreen Section 5.408. The Department of Development Services is currently open to the public from 8:00 am to 3:00 pm. If you wish to discuss these plan check comments, please call during our business hours or contact us by e-mail at the address below. Permit status can be tracked by logging on to http://www;buttecounly.net/dds and clicking Building Permits Status. Efrain Ruvalcaba Plans Examiner 530.538.2875 eruvalcaba@buttecounty.net Philo Hunt, P.E. Plan Check Engineer 530.538.2130 phunt@buttecounty. net 0 V