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    Project Structure Document Title: Deduruoya Water Supply Project Aerator Design of Pad Footing - F1

    Uploaded by

    risriz
    This document provides the design details of a pad footing (F1) for an aerator structure. It includes the materials properties, dimensions of the base and column, loads, reinforcement details, and shear and punching shear checks. The footing is designed to support a maximum column load of 743 kN from a column that is 0.45 m wide and high, on a 2.1 m wide and deep base. Reinforcement is specified to resist bending and shear stresses, and checks confirm the punching and shear capacities are sufficient.

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    Project Structure Document Title: Deduruoya Water Supply Project Aerator Design of Pad Footing - F1

    Uploaded by

    risriz
    19 views4 pages
    This document provides the design details of a pad footing (F1) for an aerator structure. It includes the materials properties, dimensions of the base and column, loads, reinforcement details, and shear and punching shear checks. The footing is designed to support a maximum column load of 743 kN from a column that is 0.45 m wide and high, on a 2.1 m wide and deep base. Reinforcement is specified to resist bending and shear stresses, and checks confirm the punching and shear capacities are sufficient.

    Original Description:

    GYYJ

    Original Title

    Pad Footing_F31 2.1x2.1

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    This document provides the design details of a pad footing (F1) for an aerator structure. It includes the materials properties, dimensions of the base and column, loads, reinforcement details, and shear and punching shear checks. The footing is designed to support a maximum column load of 743 kN from a column that is 0.45 m wide and high, on a 2.1 m wide and deep base. Reinforcement is specified to resist bending and shear stresses, and checks confirm the punching and shear capacities are sufficient.

    Copyright:

    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd
    Download as xlsx, pdf, or txt
    19 views4 pages

    Project Structure Document Title: Deduruoya Water Supply Project Aerator Design of Pad Footing - F1

    Uploaded by

    risriz
    This document provides the design details of a pad footing (F1) for an aerator structure. It includes the materials properties, dimensions of the base and column, loads, reinforcement details, and shear and punching shear checks. The footing is designed to support a maximum column load of 743 kN from a column that is 0.45 m wide and high, on a 2.1 m wide and deep base. Reinforcement is specified to resist bending and shear stresses, and checks confirm the punching and shear capacities are sufficient.

    Copyright:

    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd
    Download as xlsx, pdf, or txt
    of 4

    Project DEDURUOYA WATER SUPPLY PROJECT

    Structure AERATOR

    Document Title DESIGN OF PAD FOOTING - F1

    DESIGN OF FOOTING - F1

    MATERIALS
    fcu 30 N/mm² Soil 20 kN/m³
    fy 460 N/mm² cover 75 mm
    Densities - Concrete 25 kN/m³ Depth 1 m
    Bearing pressure 175 kN/m² (Gross allowable)

    DIMENSIONS
    BASE COLUMN
    L= 2.1 m h= 0.45 m
    B
    B= 2.1 m b= 0.45 m
    depth H = 0.35 m

    LOADS
    Maximum column axial force (SLS) = 620 kN
    Weight of Base = 39 kN
    Weight of soil = 84 kN
    Total Load = 743 kN

    Soil Bearing Pressure = 168 kN/m2


    ULS pressure due to column load = 204 kN/m2

    REINFORCEMENT .
    Mxx = 145.7 kNm Myy = 145.7
    b= 2100 mm b = 2100
    d= 269 mm d = 257
    As = 1425 mm² As = 1491
    Provide, T 12 @ 150 Provide,T 12 @
    As,provided = 1583 mm² As,provided = 1583
    As, % = 0.280% As, % = 0.293%
    .
    SHEAR ACROSS WIDTH OF BASE
    Shear span= 825 mm Shear span= 825
    4d= 1076 mm 4d= 1028
    Shear check @ (l-c)/4 Shear check @ (l-c)/4
    Shear at (l-c)/4= 413 mm from col face Shear at (b-c)/4= 413
    Vxx = 176.6 kN Vyy = 176.6
    v= 0.313 N/mm² v = 0.327
    vc = 0.457 N/mm² OK vc = 0.469

    PUNCHING SHEAR .
    d ave = 263 mm u crit = 4956
    As prov = 0.287% V= 586
    vc = 0.463 N/mm² v= 0.450
    gc 1.5
    gs 1.15

    b C4

    OK

    .
    kNm
    mm
    mm
    mm²
    150
    mm²

    Vc exceeded
    mm
    mm

    mm from col face


    kN
    N/mm²
    N/mm² OK

    Vc exceeded
    mm
    kN
    N/mm² OK

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