2 wind

Wind Load Calculator — IS 875 (Part 3):2015

Location (choose city or zone)

Pick a city (autocomplete) to auto-fill the basic wind speed V_b. Values are illustrative — verify with IS 875 map for your site.

City (autocomplete)

Wind Zone Selection (m/s) Zone 1 — 33 m/s Zone 2 — 39 m/s Zone 3 — 44 m/s Zone 4 — 47 m/s Zone 5 — 50 m/s Zone 6 — 55 m/s

Basic wind speed V_b (m/s)

k₁ — Risk coefficient

k₂ — Terrain/height factor

k₃ — Topography factor

k₄ — Importance / Cyclonic factor

External pressure coefficient C_r (use sign conv.)

Internal pressure coefficient C_p (use sign conv.)

Tributary area A (m²)

Design wind speed (V_z)

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Design wind pressure (p_z)

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Net surface pressure (p_net)

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Member / joint load (F)

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Calculation log

No calculations yet.

Note: City lookup table is illustrative. Always verify V_b with IS 875:2015 map or official sources for exact project site.