Section 408.40212. Triangle wall bracing system.

   (1) A triangle wall bracing system shall   consist  of   all      of the following elements assembled as shown in figure 3:

(a)   Scaffold grade lumber that is suitable for planking.

(i)   A 16-foot, 2-inch by 10-inch vertical brace.

(ii)   A 16-foot, 2-inch by 10-inch diagonal brace.

(iii)   A 16-foot, 2-inch by 10-inch horizontal brace.

(b)   Two nominal 2 x 4 wood stiffeners.

(c)   Top wall anchor.

(d)  Base of wall or footing anchor.

(e)   Bearing block.

(f)  Cleats.

(2)   The angle of intersection of the diagonal brace and  the  horizontal brace shall be between 35 and 45 degrees. The diagonal brace shall  not intersect the vertical brace below the midpoint height of the masonry wall.

(3)   The triangle wall bracing system shall be aligned on both      sides      of the wall when installed.

(4)   The maximum horizontal spacing for a triangle wall bracing system shall not exceed the values as shown in table 4 for the corresponding maximum wall heights and as illustrated in figure 4.

History: 2010 AACS.