Combining loads using allowable stress design

Combining factored loads design

D + L

D + H + F + L + T

D + H + F + (L_r or R)

D + H + F + 0.75 (L + T) + 0.75 (L_r or R)

D + H + F + (W or 0.7E)

D + H + F + 0.75 (W or 0.7 E) + 0.75 L + 0.75 (L_r or R)

0.6D + W + H

0.6D + 0.7E + H

1.4 (D + F)

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

1.2D + 1.6 (L_r or R) + (f₁L or 0.8W)

1.2D + 1.6W + f₁L + 0.5 (L_r or R)

1.2D + 1.0E + f₁L

0.9D + 1.6W + 1.6H

0.9D + 1.0E + 1.6H

The alternative basic load combinations

Special case

D + L + (L_r or R)

D+ L + 1.3 W

D+ L + 1.3 W

D + L + 1.3W/2

D + L + E/1.4

0.9D + E/1.4

1.4 (D + F + T) + 1.7 (L + H) + 0.5 (L_r or R)… for concrete structure and masonry construction