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
Inputs
Sk = Sk0·(1 + A/917)² for A > 250 m
Results
Sk₀ (region base) [kN/m²]—
Sk (altitude corrected) [kN/m²]—
μ₁ (shape factor)—
S = μ₁·Sk [kN/m²]—
Snow + Wind combination—
Drift factor (α info)—
Citations
Md. 11.1Sk = Sk0 · (1 + A/917)² (A ≥ 250 m); TS 498:2021 Çizelge 3 bölge değerleri.
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. 12.3Rüzgâr ve kar kombinasyonu: S+0.6W veya 0.7S+W, büyük alınan.
VERIFYBölge 2, A=500 m → Sk=1.00·(1+500/917)²=1.298 kN/m². α=20° → μ₁=0.8 → S=1.038 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.