Blog Archives

LRFD Load Combinations

Choose the combination that results in the highest U, use U in your calculations.

U = 1.4(D+F)

U = 1.2(D+F+T) + 1.6(L+H) + 0.5(L_r or S or R)

 U = 1.2D + 1.6(L_r or S or R) + (1.0L or 0.8W)

 U = 1.2D + 1.6W + 1.0L + 0.5(L_r or S or R)

 U = 1.2DL + 1.0E + 1.0L + 0.2S

U = 0.9D + (1.6W or 1.0E) + 1.6H

D = Dead Load, L = Live Load, T = self-straining, H = earth pressure, L_r = roof live load, S = Snow Load, R = rain load, E = earthquake load

Click here to continue reading