Wind Load on Open Signs and Single-Plane Open Frames

Output:

Definitions
• q_z = velocity pressure at height z
• G = Gust factor from Section 26.11
• C_f = Force coefficient from Figure 29.4-2
• A_f = Open sign net area
• K_d = 0.85 (Table 26.6-1 Open signs)
• F, M = Force and Moment at center base, respectively
Determine Velocity Pressure, Area, and Force Coefficient
• psf
• ft²
• ft²
• in
Flat-sided Members
• C _f = 1.60 (from Figure 29.4-2)
• lb
• ft-lb
Rounded Members with D_typ ≤ 8.2 in
• C _f = 1.50 (from Figure 29.4-2)
• lb
• ft-lb
Rounded Members with D_typ > 8.2 in
• C _f = 1.10 (from Figure 29.4-2)
• lb
• ft-lb
User Notes:
User notes