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    Wind Load

    Uploaded by

    vikramjain66
    This document provides calculations for wind load on a structure based on Eurocode standards. It gives the basic wind velocity as 20 m/s based on direction, season and fundamental values. The basic velocity pressure is then calculated as 238.80 N/m2 based on air density and basic wind velocity. Further calculations determine terrain roughness, orography, wind turbulence coefficients based on height and terrain type to finally yield a peak velocity pressure of 0.566 kN/m2.

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    © All Rights Reserved
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    Wind Load

    Uploaded by

    vikramjain66
    172 views1 page
    This document provides calculations for wind load on a structure based on Eurocode standards. It gives the basic wind velocity as 20 m/s based on direction, season and fundamental values. The basic velocity pressure is then calculated as 238.80 N/m2 based on air density and basic wind velocity. Further calculations determine terrain roughness, orography, wind turbulence coefficients based on height and terrain type to finally yield a peak velocity pressure of 0.566 kN/m2.

    Original Description:

    Wind Load Calculation As per NA to SS EN 1991-1-4: 2009

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    This document provides calculations for wind load on a structure based on Eurocode standards. It gives the basic wind velocity as 20 m/s based on direction, season and fundamental values. The basic velocity pressure is then calculated as 238.80 N/m2 based on air density and basic wind velocity. Further calculations determine terrain roughness, orography, wind turbulence coefficients based on height and terrain type to finally yield a peak velocity pressure of 0.566 kN/m2.

    Copyright:

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

    Wind Load

    Uploaded by

    vikramjain66
    This document provides calculations for wind load on a structure based on Eurocode standards. It gives the basic wind velocity as 20 m/s based on direction, season and fundamental values. The basic velocity pressure is then calculated as 238.80 N/m2 based on air density and basic wind velocity. Further calculations determine terrain roughness, orography, wind turbulence coefficients based on height and terrain type to finally yield a peak velocity pressure of 0.566 kN/m2.

    Copyright:

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

    Prepared by: VJ Page: 1

    Checked by: Date: 22/3/2018


    Approved by:
    Project:
    Subject: Wind Load Calculation (SS EN 1991-1-4: 2009)

    Basic Value
    Basic Wind Velocity Vb = Cdir.Cseason.V0,b
    = 20 m/s
    Directional Factor Cdir = 1
    Season Factor Cseason = 1
    Fundamental Value of basic wind Velocity V0,b = 20 m/s

    Basic Velocity Pressure


    Air density (NA.2.16) ƿ air = 1.194 Kg/m3
    Basic Velocity Pressure qb = 1/2 x ƿ air x V0,b
    = 238.80 N/m2

    Terrain Category (Type 2)


    (NA to SS EN 1991-1-4: 2009, Table NA.1) z0 = 0.05 m
    zmin = 2.00 m
    Height of ground z = 12.05 m

    Terrain Roughness
    For zmin < z < zmax cr(z) = kr x In(z/zmin)
    kr = 0.19x(z0/0.05)0.07
    = 0.19

    cr(z) = 1.04

    Terrain Orography
    co(z) = 1.00

    Wind Turbulence
    (NA to SS EN 1991-1-4: 2009, NA.2.16) k1 = 1.00

    When zmin < z < zmax lv(z) = k1 / co(z) x ln(z/z0)


    = 0.18

    Peak Velocity Pressure

    qp(z) = ce(z) x qb

    ce(z) = (1+7lv) x cr(z) x c0(z)


    = 2.37

    Peak Velocity Pressure qp(z) = 0.566 kN/m2

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