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    • AS1170.2-2021

    Criteria
    Region
    Return Period
    Terrain Category
    s(m) 
    Storey Height (m)
    No. of Storeys
    Total Height H (m)
    Bldg. X Dimension (m)
    Bldg. Y Dimension
    Site Wind Speed Vr
    Damping
    Average Storey Mass (kg)
    M z,cat (H)
    Along-Cross Combo Factor α

    Directional Inputs

    Insert the values for each direction based on building geometry, wind cardinal directions and dynamic properties from analysis model:
    Along Y Direction  
    Building Period (sec)
    CPe Windward
    CPe Leeward
    Combination Factor Kc
    Md Dir Factor +Y
    Md Dir Factor -Y
    Ms Shielding Factor +Y
    Ms Shielding Factor -Y
    Building Aspect Ratio (h:b:d) facing load
    Along X Direction  
    Building Period (sec)
    CPe Windward
    CPe Leeward
    Combination Factor Kc
    Md Dir Factor +X
    Md Dir Factor -X
    Ms Shielding Factor +X
    Ms Shielding Factor -X
    Building Aspect Ratio (h:d:b) perp direction

    Dynamic Factor

    Peak Factor gv
    Turbulence Factor Ih
    Lh Hs
    Y Direction Calcs +Y -Y
    Size Red. Fctr. S
    N
    Et
    Gust Factor
    Dyn Fctr Cdyn
    Peak Factor gR
    Bacground Factor Bs
       
    X Direction Calcs +X -X
    Size Red. Fctr. S
    N
    Et
    Gust Factor
    Dyn Fctr Cdyn
    Peak Factor gR
    Bacground Factor Bs

    Wind Response

    Y Direction +Y -Y
    Total Base Shear
    Overturning Moment
    Resonant Moment
    Crosswind Base Shear
    Crosswind Overturning M
    Reduced Wind Speed
    Log10(Cfs)
    Mode Pwr. Exponent k
    Mode Shape Correction Km
    Along Wind Acceleration
    Crosswind Acceleration
    Combined Acceleration
         
    X Diection +X -X
    Total Base Shear
    Overturning Moment
    Resonant Moment
    Crosswind Base Shear
    Crosswind Overturning M
    Reduced Wind Speed
    Log10(Cfs)
    Mode Pwr. Exponent k
    Mode Shape Correction Km
    Along Wind Acceleration
    Crosswind Acceleration
    Combined Acceleration
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    All values in above form are PEAK, for mean values, divide by the gust factor = Cdyn*(1+2gv*Ih)

    Tables below include Combination factor (Applying peak in one direction, and reduced peak in other - i.e. peak values will not coincide unless user opts otherwise)

    Case +Y (Along + α * Cross)

    Case +Y (Along - α * Cross)

    Case +Y ( α * Along +Cross)

    Case +Y ( α * Along -Cross)

    Case -Y (Along + α * Cross)

    Case -Y (Along - α * Cross)

    Case -Y (α * Along + Cross)

    Case -Y (α * Along - Cross)

    Case +X (Along + α * Cross)

    Case +X (Along - α * Cross)

    Case +X ( α * Along + Cross)

    Case +X ( α * Along - Cross)

    Case -X (Along + α * Cross)

    Case -X (Along - α * Cross)

    Case -X (α *Along + Cross)

    Case -X (α *Along - Cross)