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    Drag Force Calculation - kc2

    Uploaded by

    Rajesh Kumar
    The document contains calculations to determine drag force on two building structures due to wind pressure. For the first structure, with dimensions of 13.8m height, 210.73m length, and 65.825m breadth, the drag force is calculated to be 446kN. For the second structure, with dimensions of 13.8m height, 99.97m length, and 65.825m breadth, the drag force is calculated to be 128.5kN. Additional force due to friction drag is determined to be 19kN for the first structure and 11kN for the second structure.

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    Drag Force Calculation - kc2

    Uploaded by

    Rajesh Kumar
    33 views1 page
    The document contains calculations to determine drag force on two building structures due to wind pressure. For the first structure, with dimensions of 13.8m height, 210.73m length, and 65.825m breadth, the drag force is calculated to be 446kN. For the second structure, with dimensions of 13.8m height, 99.97m length, and 65.825m breadth, the drag force is calculated to be 128.5kN. Additional force due to friction drag is determined to be 19kN for the first structure and 11kN for the second structure.

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    Drag force calculation--kc2.docx

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    The document contains calculations to determine drag force on two building structures due to wind pressure. For the first structure, with dimensions of 13.8m height, 210.73m length, and 65.825m breadth, the drag force is calculated to be 446kN. For the second structure, with dimensions of 13.8m height, 99.97m length, and 65.825m breadth, the drag force is calculated to be 128.5kN. Additional force due to friction drag is determined to be 19kN for the first structure and 11kN for the second structure.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    33 views1 page

    Drag Force Calculation - kc2

    Uploaded by

    Rajesh Kumar
    The document contains calculations to determine drag force on two building structures due to wind pressure. For the first structure, with dimensions of 13.8m height, 210.73m length, and 65.825m breadth, the drag force is calculated to be 446kN. For the second structure, with dimensions of 13.8m height, 99.97m length, and 65.825m breadth, the drag force is calculated to be 128.5kN. Additional force due to friction drag is determined to be 19kN for the first structure and 11kN for the second structure.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 1

    Drag force calculation (KC2):

    Height (h) = 13.8m (Eave)

    Length (d) = 210.73 m

    Breadth (b) = 65.825m

    Wind Pressure (Pd) = 1.533kN/m2.

    Drag Force (F’) = Cf’(d-4h)bPd+Cf’(d-4h)2hPd

    Cf’=0.02

    (F’) = 0.02(210.73- (4x13.8)) x65.825x1.533 + 0.02(210.73 – (4x13.8)) x2x13.8x1.533= 446kN

    No of sides in frame and no.of longitudinal bracings in each side (2x2)= 446/ 4 = 111.50 kN.

    No of braced bays = 6 = 111.50/6 = 18.58 kn ~ 19kN.

    Hence a additional force due to friction drag = 19kN.

    Height (h) = 13.8m (Eave)

    Length (d) = 99.97 m

    Breadth (b) = 65.825m

    Wind Pressure (Pd) = 1.533kN/m2.

    Drag Force (F’) = Cf’(d-4h)bPd+Cf’(d-4h)2hPd

    Cf’=0.02

    (F’) = 0.02(99.97- (4x13.8)) x65.825x1.533 + 0.02(99.97 – (4x13.8)) x2x13.8x1.533= 128.5kN

    No of sides in frame and no.of longitudinal bracings in each side (2x2)= 128.5/ 4 = 32.05 kN.

    No of braced bays = 3 = 32.05/3 = 10.68 kn ~ 11kN.

    Hence a additional force due to friction drag = 11kN.

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