Term Details

Display Hierarchical | Alphabetical | KWOC | KWIC


Top Terms > Facilities > Structures > Structural parts > Structural members > Structural supports > Breakaway supports

Find related records

Search with TRT term only:

TRB Publications Index
Research in Progress
TRID

Expanded search with
narrower TRT terms:

TRB Publications Index
Research in Progress
TRID

Breakaway supports (Pbpbvc)

Definition
Design features which allow a device such as a sign, luminaire, or traffic signal support to yield or separate upon impact. The release mechanism may be a slip plane, plastic hinges, fracture elements, or a combination of these. Also, a structural element at or near the bottom of a post or pole which will allow release of the post from its base upon impact while resisting wind loads. (Source: AASHTO Glossary)
Use For
Slip bases
Broader Term
Structural supports (Pbpbv)
Related Terms (Hierarchical)
Bents (Pbpbva)
Brackets (Pbpbvb)
Buttresses (Pbpbvd)
Concrete forms (Pbpbve)
Falsework (Pbpbvf)
Lateral supports (Pbpbvg)
Horizontal supports (Pbpbvh)
Tie rods (Pbpbvr)
Timbering (Pbpbvt)
Vertical supports (Pbpbvv)