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

document.xls - Rev. 1 Page 2 Of 2 04/17/2023

a - Cross bar weld b - Horiz. Loop bar c - Vert. Loop bar