Home / Loads & Seismic / TS 498 Snow Load B · v1.0
TS 498 Snow Load
Characteristic ground snow load Sk by region and altitude · Roof snow load S = μ₁·Sk · Wind + snow combination coefficient
📝 TS 498:2021 metninde bulunan dizgi ve aritmetik hataları: düzeltme önerileri.
Inputs
Sk from TS 498:2021 Çizelge 3 (zone × altitude; stepped — the next higher row is used)
Results
Bölgenin 0–200 m değeri (karşılaştırma) [kN/m²]—
Sk (Çizelge 3, zone × altitude) [kN/m²]—
μ₁ (shape factor)—
S = μ₁·Sk [kN/m²]—
Kar + rüzgâr (Madde 12.1): a) S + W/2 · b) W + S/2—
Birikme notu—
Citations
Çizelge 3Sk from TS 498:2021 Çizelge 3, zone × altitude (stepped table). v351: the EN 1991-1-3 altitude formula Sk0·(1+A/917)² previously quoted here is not TS 498 — the engine has used the table since v338.
Md. 12.1S = μ₁ · Sk. Tek eğimli çatı: 0° ≤ α ≤ 30° → μ₁=0.8; 30° < α ≤ 60° → μ₁=0.8·(60−α)/30; α>60° → μ₁=0.
Md. 12.1Snow + wind: S + W/2 and W + S/2, the more unfavourable governs (TS 498 §12.1; the printed "S+ = W/2" is a typesetting error — see the TS 498 notes page).
VERIFYZone 2, A = 500 m → Çizelge 3: Sk = 0.75 kN/m². α = 20° → μ₁ = 0.8 → S = 0.60 kN/m².
Preliminary calculation tool. Results are for preliminary sizing and cross-check only. Final design, sealed responsibility, and permit submissions require the full official text of the referenced regulations and the review of a licensed engineer.