Engineering Tools

Crane Wind Load Calculator

Wind force on suspended loads and crane structures per AS 5222:2021. In-service operating wind (§5) and out-of-service storm wind with height-varying profile (§6). Runs entirely in your browser.

Wind speed

Category preset Manual v_s

Secured / light winds — 14 m/s

Cranes ordinarily secured against wind, or designed for light winds only

p = 125 N/m²

Normal outdoor — 20 m/s

All normal types of crane installed in the open

p = 250 N/m²

Process / continuous — 28.5 m/s

Cranes in process applications that must continue working in high winds

p = 500 N/m²

Suspended load

Wind area A_H (m²)

Shape coefficient c_H (see AS 5222 §5.4 Table 2)

Results

Wind speed v_s 20.00 m/s

Wind pressure p 250.00 N/m²

Shape coefficient c_H 1.20

Wind area A_H 6.00 m²

Wind force F_w 1.80 kN

F_w = c_H × A_H × p (AS 5222 eq 3)

Engineering aid only. Calculator implements the formulas of AS 5222:2021 (Cranes — Wind load assessment, ISO 4302:2016 MOD). Shape coefficients (C_f), shielding factors (η), and reference storm wind speeds (v_ref) are user inputs — refer to AS 5222 Tables 2 & 4, and to AS 1418.1 for Australian regional storm wind speeds. Final design responsibility rests with the engineer of record. Verify all results independently.