[ q_p(z) = \frac12 \rho \cdot v_p^2(z) ]
=IF(AND(h/d>=1, h/d<=5), 1.3 - 0.3*(h/d -1)/4, IF(h/d<1, 1.3, IF(h/d>5, 0.8, "error"))) Better: Use a linear interpolation table for ( c_f ) based on ( h/d ) ratio and wind incidence angle. For buildings with height < 15 m and non-slender, ( c_s c_d ) can be taken as 1.0. For dynamic sensitive structures: wind load calculation excel sheet eurocode
[ q_p(z) = c_e(z) \cdot q_b ]
While commercial software exists, many engineers prefer the transparency, customizability, and cost-effectiveness of a well-structured . An Excel-based wind load calculator allows you to understand every variable, apply national annexes, and avoid "black box" engineering. [ q_p(z) = \frac12 \rho \cdot v_p^2(z) ]