Wind Resistant Design AIJ Recommendations for Wind Loads on ...

<strong>Wind</strong> <strong>Loads</strong> <strong>for</strong> Components
and Cladding
W R (N)
Cˆ
W
C
Ĉ pe
*
C
pi
A
C
= Cˆ
pe
=
− C
q
*
pi
H
Cˆ
C
A
C
: Peak external pressure coefficient
: Coefficient accounting <strong>for</strong> the
effect of the internal pressure
fluctuation
: Tributary area
Equivalent internal
pressure coefficient
Aerodynamic Shape Factors
• External wind pressure coefficients
<strong>for</strong> structural frames:
- Buildings with rectangular sections (H>45m)(
- Buildings with rectangular sections with flat,
shed, or gable roofs (H≤45m)
- Circular arc roofs (H≤45m)(
- Dome roofs
Internal wind pressure coefficients C pi
• Internal wind pressure coefficients
<strong>for</strong> structural frames
- Buildings without dominant openings
C pe
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