Box Culvert Design Calculations Eurocode 2021 =link= -

(V_Ed ≈ 35 kN/m from analysis): ( v_Rd,c = C_Rd,c k (100ρ_1 f_ck)^1/3 b_w d ) ρ₁ = As/(b d) = 565/(1000×204)=0.00277, k=1+(200/204)^0.5=1.99 ≤ 2.0. v_Rd,c ≈ 0.12×1.99×(100×0.00277×30)^1/3×1000×204/1000 = 42.2 kN > 35 kN → OK.

A box culvert is typically a closed-frame structure (single or multiple cells) subjected to earth pressure, hydrostatic pressure, live loads from traffic, and self-weight. The key Eurocodes applied in 2021 are: box culvert design calculations eurocode 2021