HomeMy WebLinkAbout721 S Harbor Blvd - PlanBldg# 101120880
APPROVALS:
PLNG - CSantana
BLDG - TLe
721 S Harbor Blvd
11/20/2024
721 S Harbor Blvd
11/20/2024
721 S Harbor Blvd
11/20/2024
721 S Harbor Blvd
11/20/2024
ORANGE COUNTY FIRE AUTHORITY
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Project Scope/Business Description
Construction of a new building, a new story, or increase the footprint of an existing building? Changes to roadways,
curbs, or drive aisles? Addition, relocation, or modification of fire hydrants or fences/gates? Construction within
300 feet of an active or proposed oil well? Fire Master Plan (PRJ 45)
2.Q Q Property is adjacent to a wild land area or non-irrigated native vegetation?
Fire Master Plan (PR145); a Fuel Modification Plan may also be required. (PR] 20, PR] 24)
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9 ·00
10 ·00
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sq.ft. for training/adulteducation) or> 49 people? Healthcare/outpatient services for> 5 people who may be unable
to immediately evacuate without assistance? Education for children (academic tutoring for ages 5+ is exempt unless
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721 S Harbor Blvd
11/20/2024
ORANGE COUNTY FIRE AUTHORITY
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Updated: 06/02/2020 rs
721 S Harbor Blvd
11/20/2024
508 Baylor Court, Suite C
Chesapeake, VA 23220
757.436.2070
Charles Town, WV
304.370.3088
Prepared by:
Broyles and Associates, P.C.
508 Baylor Ct, Suite C
Chesapeake, VA 23220
757.436.2070 • 304.370.3088 • dbroyles@broylesandassociates.com • www.broylesandassociates.com
STRUCTURAL CALCULATIONS
COVER SHEET
Starbucks Menu Board Foundations
Santa Ana, CA
Foundation Calculations
July 25, 2024
Prepared for:
RRMM
1317 Executive Blvd,
Chesapeake, VA 23320
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
1
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
DESIGN CRITERIA – ASCE 7-16
Wind Design
Wind Speed V = 115 MPH
Risk Category II
Exposure Category C
Foundation Design
Presumptive Soil Bearing Q = 1500 psf
Concrete Strength fc = 3000 psi
Concrete anchors ASTM F1554 A36 fy = 36 ksi
Dimensional Information
Overall Sign Height (both) h = 6.0 ft
Single Menu Board: Sign Height hs = 4.17 ft
Sign Width bs = 2.5 ft
Height of Centerline hsc = h - hs/2 = 4.0 ft
Double Menu Board: Sign Height hd = 4.17 ft
Sign Width bd = 4.83 ft
Height of Centerline hdc = h - hd/2 = 4.0 ft
Embedment calculation uses ASD loads = 0.6* Ult = 370# * 0.6 = 222#
WIND LOADING DOUBLE MENU BOARD (ASCE7-16)
WIND LOADING
In accordance with ASCE7-16
Using the directional design method
Tedds calculation version 2.1.13
Wall/sign data
Length of wall/sign B = 4.83 ft
Height of wall/sign s = 4.17 ft
Height to top of sign h = 6.00 ft
General wind load requirements
Basic wind speed V = 115.0 mph
Risk category II
Velocity pressure exponent coef (Table 26.6-1) Kd = 0.85
Ground elevation above sea level zgl = 0 ft
Ground elevation factor Ke = exp(-0.0000362 zgl/1ft) = 1.00
Exposure category (cl 26.7.3) C
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
2
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Gust effect factor Gf = 0.85
Minimum design wind loading (cl.27.1.5) pmin_r = 8 lb/ft2
Topography
Topography factor not significant Kzt = 1.0
Velocity pressure
Velocity pressure coefficient (Table 26.10-1) Kz = 0.85
Velocity pressure qh = 0.00256 Kz Kzt Kd Ke V2 1psf/mph2 = 24.5 psf
Area of sign Af = B s = 20.141 ft2
Ratio of solid area to gross area = 1.00
Wall/sign forces – Case A and B
Force coefficient (Figure 29.3-1) Cf_A = 1.64
Resultant force FA = max(16psf, qh Gf Cf_A) Af = 0.7 kips
Embedment calculation uses ASD loads = 0.6* Ult = 690# * 0.6 = 414#
721 S Harbor Blvd
11/20/2024
Project:Sign Designs Proj No:
Prepared By:RSW Date:7/25/24
Checked By: Sheet No:
Subject:
ASCE 7 Wind Loads Last updated:01/30/24
Directional Procedure
Square Footing Loading (at top of ftg)
Vol. of conc.:15.4 ft^3 V ULT=690 # (at center)
w conc=150 pcf V = 0.6 VULT=414 # (at center)134.3
f'c=3000 psi P =300 # (at center)97.3
fy=60000 psi M =1656 ft-# (at center)537.1
e =0 in
Soil Sign Base Steel
k=90 pci Modulus of Subgrade reaction 12 ''x 14" baseplate
Soil angle:30 0.524 rad
Soil weight:110 pcf Footing W min = Pwall/ Qnet = 0.06ft
Q-net allow:1500 psf net allowable bearing Ftg width:2.500 3.083
Soil depth abv:0 in Ftg depth:24 in
Weight:0 plf Weight:750 plf
Cover to ties:3''As tie=0.028 in^2
Increase Soil Bearing Pressure?d=20.8125''0.028
Use soil wt?in Q-net 0 As min long= 1.296 in^2
Soil weight:0 # (per foot)
Use ftg wt?yes 1
Ftg weight:750 # (per foot)
P tot design=847.3 # (per foot)MRESIST = 2647.8ft-#MOT= 2014.3 ft-#
e=M/P tot=0.63 ft (outside kern)MRESIST = 1059.1ft-# / ft MOT= 805.7 ft-#
e > b/6=0.42 :. Q=4/3*P/(L(B-2*e))
Qmax=911 psf < 1800 psf gross +/-
Qmin=0 psf 1800
Assuming soil resulantant is located at "e"
Soil load width x=3(B/2-e)=22.32
Overturning and Sliding
Use soil wt?yes 1
Soil weight:0 # (per foot)
Use ftg wt?yes 1
Ftg weight:750 # (per foot)Footing Design Load factor=1.4
P tot Design=847.3 # (per foot)Bending:Lcr =9''from edge of ftg
2118.3 # total M pressure=222 ft-#
Slide frict=229 # friction Mu=1.4*Mp=311 ft-#
tan(o/2)=0.27 Shear:Lcr =0''from edge of ftg
Slide soil=0 # side soil V pressure=0 #
S Resist Total=229 # / ft length Vu=1.4*Vp=0 #
Slide FS =1.71 > 1.25
M resist=P tot*(width/2)=2647.8 ft-#Reinforced Footing Design:
=1059.1 ft-# / ft ФMoment =0.9 ФShear =0.75
OT FS =1.31 > 1.25 Transverse ties:# 3 at 48'' oc
a=0.055 As tie=0.028 in^2
Unreinforced Footing Design:Ф =0.55 c=0.065 < 0.375*d=7.805
ФMn=Ф*5sqrt(f'c)(b*d^2/6)=10874 ft-# > 311ft-#ФMn=Ф*As*fy*(d-a/2)=2619 ft-# > 311ft-#
ФVn=Ф*4/3*sqrt(f'c)*b*h=11568 # > 0#ФVn=Ф*2*sqrt(f'c)*b*d=20519 # > 0#
0
2.5 ft x 3.083 ft x 24'' column footing is acceptable as an unreinforced footing.
Orig. size = 22''x 29''x 24''
| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| |
E| | E| | E| |E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E
0
9
0
911
544 911
9''
0''
M
P
V
129
24
0
/ft
/ft
/ft
/ft
ft x ft
22.32
NWIND
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
8
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
POST INSTALLED ANCHORS AT MENU BOARD (PRE-SELL BOARD SIMILAR)
ANCHOR BOLT DESIGN
In accordance with ACI318-14
Tedds calculation version 2.1.08
Design summary
Description Unit Required Provided Util. Result
Anchor tensile strength (kips) 2.10 18.70 0.112 PASS
Concrete breakout (kips) 4.20 6.98 0.601 PASS
Bond strength (kips) 4.20 6.06 0.693 PASS
Anchor shear strength (kips) 0.70 9.07 0.077 PASS
Shear breakout (rear) (kips) 0.70 8.70 0.081 PASS
Side shear breakout (rear) (kips) 0.70 22.13 0.032 PASS
Anchor pryout (kips) 0.70 15.09 0.046 PASS
Interaction of forces 1.200 0.773 0.645 PASS
Anchor bolt geometry
Anchor bolt Proprietary bolt Diameter of anchor bolt da = 0.75 in
Number of bolts in x direction Nboltx = 2 Number of bolts in y direction Nbolty = 2
Total number of bolts ntotal = 4 Total No. of bolts in tension ntens = 2
Spacing of bolts in x direction sboltx = 8 in Spacing of bolts in y direction sbolty = 8 in
Effective area of anchor Ase = 0.43 in2 Embed. depth of anchor bolt hef = 12 in
Foundation geometry
Member thickness ha = 36 in
CL baseplate - left edge xce1 = 10 in CL baseplate - right edge xce2 = 10 in
CL baseplate - bot. edge yce1 = 10 in CL baseplate - top edge yce2 = 10 in
Material details
Nom. tensile stress of steel futa = 58 ksi Compressive strength of conc f’c = 3 ksi
Concrete modification factor = 1.00
Mod. factor, concrete failure a = 1.00 Mod. factor, adhesive bond a1 = 1.00
Strength reduction factors
Tension of steel element t,s = 0.75 Shear of steel element v,s = 0.65
Concrete tension t,c = 0.75 Concrete shear v,c = 0.75
Concrete tension for pullout t,cB = 0.70 Concrete shear for pryout v,cB = 0.70
Seismic requirements
Seismic category D
Attachment undergoes ductile yielding - the attachment (not covered in this calculation) will undergo ductile yielding
at a force level corresponding to anchor forces no greater than the calculated design strength of the anchors. Anchor
tensile strengths associated with concrete failure modes will be taken to be 0.75 times the calculated strength.
Anchor forces
No. of bolt rows in tension NboltN = 1
Axial force in bolts for row 1 N1 = 4.20 kips
Total axial force on bolt group NR = 4.20 kips Max axial force to single bolt Nmax,s = 2.10 kips
Eccentricity of axial load e’N = 0.00 in Shear force to bolt group V = 0.70 kips
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
9
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Steel strength of anchor in tension (17.4.1)
Nom strength of anchor Nsa = 24.94 kips Steel strength of anchor Nsa = 18.70 kips
PASS - Steel strength of anchor exceeds max tension in single bolt
Check concrete breakout strength of anchor bolt in tension (17.4.2)
The anchors are located at less than 1.5hef from 4 edges. Therefore the effective embedded depth has to be limited to
4.00" in accordance with 17.4.2.3
Limiting embedded depth hef,lim = 4.00 in
Coeff for basic breakout kc = 17 Breakout strgth single anchor Nb = 7.45 kips
Proj area - groups of anchors ANc = 240.00 in2 Proj area - single anchor ANco = 144.00 in2
Min dist to edge of concrete ca,min = 6.00 in Ecc. mod factor for groups ec,N = 1.00
Mod factor for edge effects ed,N = 1.00 Mod factor for no cracking c,N = 1.000
Mod factor for cracked conc cp,N = 1.000
Nom conc breakout strength Ncbg = 12.42 kips Concrete breakout strength Ncbg = 6.98 kips
PASS - Breakout strength exceeds tension in bolts
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
10
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Bond strength of adhesive anchor in tension (17.4.5)
Anchor is not subject to sustained tension loading
Stength reduction factor t = 0.65 Char. bond stress of anchor cr =225 psi
Uncracked bond stress anchor uncr = 650 psi Dist to develop full bond str. cNa = 5.77 in
Basic bond str. single anchor Nba = 6.36 kips
Proj area of anchors ANa = 225.2 in2 Full proj area - single anchor ANao = 132.95 in2
Min dist to edge of concrete ca,min = 6 in Ecc. mod factor for groups ec,Na = 1.000
Mod factor for edge effects ed,Na = 1.000 Mod factor for no cracking cp,Na = 1.000
Nom bond strength in tension Nag = 10.78 kips Bond strength in tension Nag = 6.06 kips
PASS - Bond strength exceeds tension in bolts
Steel strength of anchor in shear (17.5.1)
Nom strength of anchor Vsa = 13.95 kips Steel strength of anchor Vsa = 9.07 kips
PASS - Steel strength of anchor exceeds shear in bolts
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
11
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Concrete breakout strength in shear perpendicular to edge - Case 2. All shear resisted by rear bolts (17.5.2)
Applied shear Vapp = 0.35 kips Edge dist x near corner ca1 = 14.00 in
Edge dist y near corner ca2 = 6.00 in Load bearing length of anchor le = 6 in
Basic conc breakout strength Vb = 25.82 kips Proj area - single anchor AVco = 882.00 in2
Proj area - group of anchors AVc = 420.00 in2 Mod factor for edge effect ed.V = 0.9
Eccentricity of loading e’V = 0.00 in Mod factor of eccentricity ec,V = 1.00
Mod factor for cracking c,V = 1.2 Mod factor for edge distance h,V = 1.0
Nom conc breakout strength Vcbg = 11.59 kips Conc break out strength Vcbg = 8.70 kips
PASS - Shear breakout perpendicular to edge strength exceeds shear in bolts
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
12
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Concrete breakout strength in shear - Case 1. Half of shear resisted by front bolts (17.5.2)
Applied shear Vapp = 0.35 kips Edge dist x near corner ca1 = 6.00 in
Edge dist y near corner ca2 = 6.00 in Load bearing length of anchor le = 6 in
Basic conc breakout strength Vb = 7.24 kips Proj area - single anchor AVco = 162.00 in2
Proj area - group of anchors AVc = 180.00 in2 Mod factor for edge effect ed.V = 0.9
Eccentricity of loading e’V = 0.00 in Mod factor of eccentricity ec,V = 1.00
Mod factor for cracking c,V = 1.2 Mod factor for edge distance h,V = 1.0
Nom conc breakout strength Vcbg = 8.69 kips Conc break out strength Vcbg = 6.52 kips
PASS - Shear breakout perpendicular to edge strength exceeds shear in bolts
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
13
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Concrete breakout strength in shear parallel to edge - Case 2. All shear resisted by rear bolts ( parallel to edge - Case
2. All shear resisted by rear bolts)
Applied shear Vapp = 0.35 kips Edge distance x for shear ca1,p = 14 in
Edge distance y for shear ca2,p = 6 in Load bearing length of anchor le = 6 in
Basic conc breakout strength Vb,p = 25.82 kips Proj area of single anchor AVco,p = 882 in2
Proj area of group of anchors AVc,p = 420 in2 Mod factor for edge effect ed,V,p = 1.000
Eccentricity of loading e’V,p = 0 in Mod factor of eccentric load ec,V,p = 1.000
Mod factor for cracking c,V = 1.200 Mod factor for edge distance h,V,p = 1.000
Nom breakout strength shear Vcbg,p = 29.51 kips Concbreak out strength shear Vcbg,p = 22.13 kips
PASS - Shear breakout strength parallel to edge exceeds shear in bolts
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
14
Calc. by
RSW
Date
2021/30/2024
4
Chk'd by
Date
App'd by
Date
Concrete breakout strength in shear parallel to edge - Case 1. Half of shear resisted by front bolts ( parallel to edge -
Case 1. Half of shear resisted by front bolts)
Applied shear Vapp = 0.35 kips Edge distance x for shear ca1,p = 6 in
Edge distance y for shear ca2,p = 6 in Load bearing length of anchor le = 6 in
Basic conc breakout strength Vb,p = 7.24 kips Proj area of single anchor AVco,p = 162 in2
Proj area of group of anchors AVc,p = 180 in2 Mod factor for edge effect ed,V,p = 1.000
Eccentricity of loading e’V,p = 0 in Mod factor of eccentric load ec,V,p = 1.000
Mod factor for cracking c,V = 1.200 Mod factor for edge distance h,V,p = 1.000
Nom breakout strength shear Vcbg,p = 19.32 kips Concbreak out strength shear Vcbg,p = 14.49 kips
PASS - Shear breakout strength parallel to edge exceeds shear in bolts
Pryout strength of anchor in shear (17.5.3)
Coefficient of pryout strength kcp = 2.0 Nom pryout strength of anchor Vcpg = 21.55 kips
Pryout strength of anchor Vcpg = 15.09 kips
PASS - Pryout strength of anchor exceeds shear in bolts
Interaction of tensile and shear forces
Crit design strength tension Nn = 6.06 kips Crit applied tensile force Nua = 4.20 kips
Crit design strength shear Vn = 8.70 kips Crit applied shear force Vua = 0.70 kips
Nua / Nn = 0.693 Vua / Vn = 0.081
As Vua / Vn <= 0.2,Full strength in tension is permitted
Pass - Applied tension is less than tension capacity
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
1
Calc. by
RSW
Date
2024
Chk'd by
Date
App'd by
Date
WIND LOADING SINGLE MENU BOARD (PRE-SELL BOARD) (ASCE7-16)
WIND LOADING
In accordance with ASCE7-16
Using the directional design method
Tedds calculation version 2.1.13
Wall/sign data
Length of wall/sign B = 2.50 ft
Height of wall/sign s = 4.17 ft
Height to top of sign h = 6.00 ft
General wind load requirements
Basic wind speed V = 115.0 mph
Risk category II
Velocity pressure exponent coef (Table 26.6-1) Kd = 0.85
Ground elevation above sea level zgl = 0 ft
Ground elevation factor Ke = exp(-0.0000362 zgl/1ft) = 1.00
Exposure category (cl 26.7.3) C
Gust effect factor Gf = 0.85
Minimum design wind loading (cl.27.1.5) pmin_r = 8 lb/ft2
Topography
Topography factor not significant Kzt = 1.0
Velocity pressure
Velocity pressure coefficient (Table 26.10-1) Kz = 0.85
Velocity pressure qh = 0.00256 Kz Kzt Kd Ke V2 1psf/mph2 = 24.5 psf
Area of sign Af = B s = 10.425 ft2
Ratio of solid area to gross area = 1.00
Wall/sign forces – Case A and B
Force coefficient (Figure 29.3-1) Cf_A = 1.69
Resultant force FA = max(16psf, qh Gf Cf_A) Af = 0.4 kips
721 S Harbor Blvd
11/20/2024
Broyles And Associates
508 Baylor Court, Suite C
Chesapeake, Virgnia 23320
PH: 757-436-2070
Project
Starbucks
Job Ref.
Section
115 MPH Sign Foundation Design
Sheet no./rev.
2
Calc. by
RSW
Date
2024
Chk'd by
Date
App'd by
Date
Embedment calculation uses ASD loads = 0.6* Ult = 370# * 0.6 = 222#
721 S Harbor Blvd
11/20/2024
Project:Sign Designs Proj No:
Prepared By:RSW Date:7/25/24
Checked By: Sheet No:
Subject:
ASCE 7 Wind Loads Last updated:01/30/24
Directional Procedure
Square Footing Loading (at top of ftg)
Vol. of conc.:9 ft^3 V ULT=370 # (at center)
w conc=150 pcf V = 0.6 VULT=222 # (at center)148.0
f'c=3000 psi P =300 # (at center)200.0
fy=60000 psi M =888 ft-# (at center)592.0
e =0 in
Soil Sign Base Steel
k=90 pci Modulus of Subgrade reaction 12 ''x 14" baseplate
Soil angle:30 0.524 rad
Soil weight:110 pcf Footing W min = Pwall/ Qnet = 0.13ft
Q-net allow:1500 psf net allowable bearing Ftg width:3.000 1.500
Soil depth abv:0 in Ftg depth:24 in
Weight:0 plf Weight:900 plf
Cover to ties:3''As tie=0.028 in^2
Increase Soil Bearing Pressure?d=20.8125''0.028
Use soil wt?in Q-net 0 As min long= 1.555 in^2
Soil weight:0 # (per foot)
Use ftg wt?yes 1
Ftg weight:900 # (per foot)
P tot design=1100.0 # (per foot)MRESIST = 4950ft-#MOT= 2664.0 ft-#
e=M/P tot=0.54 ft (outside kern)MRESIST = 1650ft-# / ft MOT= 888.0 ft-#
e > b/6=0.5 :. Q=4/3*P/(L(B-2*e))
Qmax=764 psf < 1800 psf gross +/-
Qmin=0 psf 1800
Assuming soil resulantant is located at "e"
Soil load width x=3(B/2-e)=34.56
Overturning and Sliding
Use soil wt?yes 1
Soil weight:0 # (per foot)
Use ftg wt?yes 1
Ftg weight:900 # (per foot)Footing Design Load factor=1.4
P tot Design=1100.0 # (per foot)Bending:Lcr =12''from edge of ftg
3300.0 # total M pressure=338 ft-#
Slide frict=297 # friction Mu=1.4*Mp=473 ft-#
tan(o/2)=0.27 Shear:Lcr =0''from edge of ftg
Slide soil=0 # side soil V pressure=0 #
S Resist Total=297 # / ft length Vu=1.4*Vp=0 #
Slide FS =2.01 > 1.25
M resist=P tot*(width/2)=4950.0 ft-#Reinforced Footing Design:
=1650 ft-# / ft ФMoment =0.9 ФShear =0.75
OT FS =1.86 > 1.25 Transverse ties:# 3 at 48'' oc
a=0.055 As tie=0.028 in^2
Unreinforced Footing Design:Ф =0.55 c=0.065 < 0.375*d=7.805
ФMn=Ф*5sqrt(f'c)(b*d^2/6)=10874 ft-# > 473ft-#ФMn=Ф*As*fy*(d-a/2)=2619 ft-# > 473ft-#
ФVn=Ф*4/3*sqrt(f'c)*b*h=11568 # > 0#ФVn=Ф*2*sqrt(f'c)*b*d=20519 # > 0#
0
3 ft x 1.5 ft x 24'' column footing is acceptable as an unreinforced footing.
Orig. size = 36''x 18''x 24''
| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| |
E| | E| | E| |E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E| | E
0
12
0
764
499 764
12''
0''
M
P
V
1212
24
0
/ft
/ft
/ft
/ft
ft x ft
34.56
NWIND
721 S Harbor Blvd
11/20/2024