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HomeMy WebLinkAboutMS 2021-0003; RACEWAY INDUSTRIAL; STRUCTURAL ANALYSIS CLEANOUT STRUCTURE; 2022-05-02Melrose Drive and Lionshead Ave Page 1 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA STRUCTURAL ANALYSIS Cleanout Structure For: Melrose Drive and Lionshead Ave Storm Drain Improvements Proposed Warehouse Development Carlsbad, CA Governing Codes: AASHTO Bridge Design Specifications, 8th Edition ACI 318-19 Prepared by: 25231 Paseo De Alicia, Suite 260, Laguna Hills, CA. 92653 Joe Dietz, PE, SE Phone: (949) 505-3283 joe.dietz@dscengineering.net Project Number: 01009-22002 May 2, 2022 OSC ENEilNEEi=llNEi STRUCTURAL Et CIVIL ENGINEERS Melrose Drive and Lionshead Ave Page 2 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Table of Contents Page Design Criteria 2 Calculations Load Development 3-4 Top Slab Design 5 Wall Design 6 Bottom Slab Design 7 Design Criteria Design Codes and References: -AASHTO Bridge Design Specifications, 8th Edition. -ACI 318-19 Building Code Requirements for Reinforced Concrete Design Stresses: f'c = 4,000 Reinforcing:Fy = 60 ksi Soil Properties: Passive Pressure:100 pcf Allowable Bearing: Internal Friction: 30 degrees Soil Weight:127 pcf Concrete: Soil Values Based on Geotechnical Engineering Report by Langan, April 16, 2021, Langan Project No. 700086702 3500 psf, Increase for Depth Melrose Drive and Lionshead Ave Page 3 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Loads: Per AASHTO LRFD BDS, Chapter 12, Section 11 Earth Loads: EV gs:127 pcf, soil weight H:4 ft, cover Bc: 6.67 ft, outside width Bd: 10.67 ft, trench width Ku': 0.13 material coefficient, figure 12.11.2.2.1-3 Cd: 0.36 load coefficient, figure 12.11.2.2.1-3 Ft: 1.52 Fe: 1.11994 WE: 5165 plf WE: 774 psf, per foot of width Eqn. 12.11.2.2.1-4 Eqn. 12.11.2.2.1-3 Eqn. 12.11.2.2.1-2 WE =F,y BH S C Melrose Drive and Lionshead Ave Page 4 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Loads: Per AASHTO LRFD BDS, Chapter 12, Section 11 Live Load: HS20 Vehicle, LL IM: =33(1.0 - 0.125H) > 0% Eqn. 3.6.2.2-1 IM: 16.5 Impact Factor LLDF:1.15 Live Load Distribution Factor, Table 3.6.1.2.6a-1 Di:60 in, inside diameter or clear span sw:6 ft, wheel spacing sa:14 ft, axle spacing wt:20 in, tire patch width lt:10 in, tire patch length m: 1.2 mulitple presence factor P: 50 kips, Live Load of all interacting wheels Hint:3.51 ft where H < Hint Eqn. 3.6.1.2.6b-2 ww:6.6 ft, live load patch width where H > Hint Governs Eqn. 3.6.1.2.6b-3 ww:12.6 ft, live load patch width Hint-p:11.4 ft where H < Hint-p Governs Eqn. 3.6.1.2.6b-5 lw:5.4 ft, live load patch length where H > Hint-p Eqn. 3.6.1.2.6b-6 lw:19.4 ft, live load patch length Eqn. 3.6.1.2.6a-1 ALL:68.3 ft2 PL:1024 psf, Vehicle Live Load Pressure Eqn. 3.6.1.2.6b-1 Eqn. 3.6.1.2.6b-4 Eqn. 3.6.1.2.6b-7 s _3__ 0.06D1 w 12 12 H,m = LLDF w D . w =-' +s +LLDF(H )+0.06-' w 1-w 1 I, s --• l ? H = - lm-p LLDF I I = _!_ + UDF(H ) "" 12 I I =....!...+s +LLDF(H ) "" 12 • ( IM ) p !+-(m) p = 100 L Au Melrose Drive and Lionshead Ave Page 5 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Top Slab Design Loads: See Previous Pages Earth: 774 psf Live: 1024 psf Slab Design Parameters: Thickness: 8 inches Span: 5.12 ft, short span f'c: 4 ksi, concrete strength Fy: 60 ksi, rebar strength Bar Size: 5 bar # Spacing:6 inches d:4 inches, rebar depth DC: 100 psf, self weight Design 1' Strip: As:0.62 in2 rbal:0.0285 r:0.0129 Tension Controlled Section a: 0.91 inches Mn:131.84 kip*inches fMn:9.89 kip*ft Load Combinations: Load Factor DC 1.25 EV 1.30 LL 1.75 Strength I Governs: Mu:9.58 kip*ft Status:OK for Loading Melrose Drive and Lionshead Ave Page 6 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Wall Design Lateral Earth Pressure f:30 degrees, angle of internal soil friction Ka:0.33 Rankine Earth Theory Factor Wall Height: 11.5 ft Pressure @ Top: 169 psf Pressure @ Bottom: 656 psf Wall Design Parameters: Thickness: 8 inches Span: 11.5 ft f'c: 4 ksi, concrete strength Fy: 60 ksi, rebar strength Bar Size: 5 bar # Spacing:8 inches d:4 inches, rebar depth Design 1' Strip: As:0.465 in2 rbal:0.0285 r:0.0097 Tension Controlled Section a: 0.68 inches Mn:102.06 kip*inches fMn:7.65 kip*ft Load Combinations: Load Factor EH 1.50 Strength I Governs: Mu:6.92 kip*ft Status:OK for Loading Melrose Drive and Lionshead Ave Page 7 of 7 Storm Drain Improvements 5/2/2022 Cleanout Structure Carlsbad, CA Bottom Slab Design Loads: See Previous Pages Earth: 774 psf Live: 1024 psf Water: 718 psf Dead: 400 psf Slab Design Parameters: Thickness: 8 inches Span: 5.12 ft, short span f'c: 4 ksi, concrete strength Fy: 60 ksi, rebar strength Bar Size: 6 bar # Spacing:8 inches d:5 inches, rebar depth DC: 100 psf, self weight Design 1' Strip: As:0.66 in2 rbal:0.0285 r:0.0110 Tension Controlled Section a: 0.97 inches Mn:178.78 kip*inches fMn:13.41 kip*ft Load Combinations: Load Factor DC 1.25 EV 1.30 LL 1.75 WA 1.00 Strength I Governs: Mu:13.16 kip*ft Status:OK for Loading