Page 286 - Design of Reinforced Masonry Structures

h′ ft
Fixed at base, free at top K = 2.0 K = 2.10
Effective h′ = 2h

Assumed buckled shape of columns, walls, and pilasters is shown by dashed lines.

Brace Effective h′ Height to roof or floor h′ ft between supports
Wall thickness Column Thickness Fixed top and bottom K = 0.6

∗ AISC recommended values of K [5.9] Effective height of a column, wall, or a pilaster for practical end conditions. (Adapted from Ref. [5.6].)

Fixed top and bottom K = 0.6 K = 0.65
h′ ft
Effective h = 0.6 h′ 0.2 h′
0.2 h′

Fixed at base, pinned at top K = 0.8 K = 0.8
h′ ft
0.2 h
Effective h = 0.8 h′

h′
Effective h = h′
Pinned at supports K = 1.0 K ∗ = 1.0
FIGURE 5.6

5.6