ACI Corbel
4
document.xls - Rev. 1 Page 1 Of 4 07/19/2022 DESIGN CALCULATION SHEET Project No. Date AN9766 19-Jul-22 Sheet No. Computed by of -- A. HASHEM Subject Luanda Water Treatment Plant Checked by Approved by A. Shedid _ Building Corbel Design DESIGN OF MONOLITHIC CORBELS AND BRACKETS ACCORDING TO ACI 318 - 99 SECTION ID Inlet Channel Support Material Properties = 320.00 = 4000 Section Properties Breadth of Section (b) = 80.00 Cm Total Thickness (h) = 100.00 Cm Depth of Section (d) = 94.00 Cm Edge Thickness (h') = 100.00 Cm Load distanse from face of support (20.00 Cm a/d = 0.21 < 1 Straining Actions Ultimate Vertical Force (Vu) = 92.00 t Ultimate Normal Force (Nuc) = 0.00 t (Min. = 0.20 Vu 18.40 = 19.50 m. t ACI - 11.9.3 Shear Strength (Vn) = 359.53 t ACI - 11.9.3.2.1 Reinforcement Calculations = 7.73 Min. to ACI-10.5 = 5.41 ACI - 11.9.3.4 = 19.33 (Concrete Cast MonolithicalACI - 11.7.4.1, Eqn. (11 = 24.06 ACI - 11.9.3.5 & 11.9.5 = 9.33 ACI - 11.9.4 Reinforcement Size = 12 F 16 = 24.13 = 1 Set of closed Stir 1 Row of F 16 Increase Diameter or Number of Sets = ( 2 ) Legs x ( 1 ) Rows x F 16 = 4.02 < 9.33 Unsatisfact Anchorage Details Apply one of the following anchorage method for (As) reinf. Concrete Cylinder Strength (f ' C) Kg/Cm 2 Steel Yield Stress (fY) Kg/Cm 2 t) ACI - 11.9.3.4 Ultimate Moment (MU) Reinforcement for Flexure (A f) Cm 2 Reinforcement for Normal force (A Cm 2 Reinforcement for Shear Friction Cm 2 Main Reinforcement (A s) Cm 2 Total Area of Stirrups (A h) Cm 2 As Cm 2 Ah Cm 2 a A h Closed Stirrups A s (Main Reinf.) anchor bar Nuc bearing plate Vu 2/3 d d h h' tw = db /2 tw = 3/4 db db As 4 db Bent Straight As Loaded Area a - Cross bar weld b - Horiz. Loop 4 db Loaded area D= 6 db c - Vert. Loop
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Transcript of ACI Corbel
document.xls - Rev. 1 Page 1 Of 2 04/17/2023
DESIGN CALCULATION SHEET
Project No. Date
AN9766 17-Apr-23
Sheet No. Computed by
of -- A. HASHEM
Subject Luanda Water Treatment PlantChecked by Approved by
A. Shedid _Building Corbel Design
DESIGN OF MONOLITHIC CORBELS AND BRACKETS ACCORDING TO ACI 318 - 99
SECTION ID Inlet Channel Support
Material Properties
= 320.00
= 4000
Section Properties
Breadth of Section (b) = 80.00 Cm
Total Thickness (h) = 100.00 Cm
Depth of Section (d) = 94.00 Cm
Edge Thickness (h') = 100.00 Cm Load distanse from face of support (a) = 20.00 Cm
a/d = 0.21 < 1
Straining Actions
Ultimate Vertical Force (Vu) = 92.00 t
Ultimate Normal Force (Nuc) = 0.00 t (Min. = 0.20 Vu = 18.40
= 19.50 m. t ACI - 11.9.3
Shear Strength (Vn) = 359.53 t ACI - 11.9.3.2.1
Reinforcement Calculations
= 7.73 Min. to ACI-10.5
= 5.41 ACI - 11.9.3.4
= 19.33 (Concrete Cast Monolithically) ACI - 11.7.4.1, Eqn. (11-25)
= 24.06 ACI - 11.9.3.5 & 11.9.5
= 9.33 ACI - 11.9.4
Reinforcement Size
= 12 F 16 = 24.13
= 1 Set of closed Stirrups, 1 Row of F 16 Increase Diameter or Number of Sets / Rows = ( 2 ) Legs x ( 1 ) Rows x F 16 = 4.02 < 9.33 Unsatisfactory
Anchorage DetailsApply one of the following anchorage method for (As) reinf.
Concrete Cylinder Strength (f 'C) Kg/Cm2
Steel Yield Stress (fY) Kg/Cm2
t) ACI - 11.9.3.4
Ultimate Moment (MU)
Reinforcement for Flexure (A f) Cm2
Reinforcement for Normal force (A n) Cm2
Reinforcement for Shear Friction (Avf) Cm2
Main Reinforcement (A s) Cm2
Total Area of Stirrups (A h) Cm2
As Cm2
Ah
Cm2
a
A h Closed Stirrups
A s (Main Reinf.)
anchor bar
Nuc
bearing plate
Vu
2/3 d
dh
h'
tw = db /2tw = 3/4 db
db
As
4 db Bent
Straight
As
Loaded Area
a - Cross bar weld b - Horiz. Loop bar
4 dbLoaded area
D= 6 db
c - Vert. Loop bar
N22
a/d < 1 according to Aci - 11.9.1
M32
The program is based on Monolithically placed Concrete as m =1.4 l (please refer to ACI-11.7.4.3 for others)
document.xls - Rev. 1 Page 2 Of 2 04/17/2023
a - Cross bar weld b - Horiz. Loop bar c - Vert. Loop bar
