The truss that was braced-creatively-to a telephone pole was the only one to survive this major collapse. Inadequate temporary bracing was
cited as the cause.
Figure 1. Continuous lateral bracing maintains spacing, but allows
all web members to buckle at once.
Figure 2. Trusses can be anchored to a solid end wall to secure
lateral bracing of the web members.
Figure 3. Diagonal bracing in the plane of the web members prevents lateral movement. The diagonal braces are typically
arranged in a crisscross fashion.
Figure 4. Locate ground
braces for first truss
directly in line with all
rows of top-chord
The vast majority
of truss collapse
are due to
bracing. To be
safe, follow these