Trinity Highway QuadGuard M Wide, Product Description Assembly Manual

Page: 17 / 64

TrinityHighway.com 16 Revision D March 2021
Foundation/Anchoring
Important:
It is the responsibility of the local DOT or appropriate highway
authority to ensure that this assembly conforms to the AASHTO Roadside Design
Guide.
Warning:
It is the responsibility of the installer to ensure that your assembly
procedure meets all appropriate Occupational Safety and Health Administration
(“OSHA”) and local standards.
Concrete Installations
For concrete installations, the QuadGuard ® M Wide should be installed only on an existing or
freshly placed and cured concrete base (4000 psi [28 MPa] minimum). Orientation of the concrete
base and the attenuator must comply with the project plans or as otherwise determined by the
resident project engineer or appropriate highway authority.
Recommended dimension and reinforcement specifications for new concrete pads can be found
on the standard drawings.
The QuadGuard ® M Wide may be installed on any of the following foundations using the specified
anchorage:
Foundation A: Reinforced Concrete Pad or Roadway
Foundation: 6” [152 mm] (reinforced) with Anchor Block minimum thickness P.C.C.
Anchorage: Approved adhesive with 7” [ 178 mm] studs 5 1/2” [140 mm] embedment
Foundation B: Reinforced or Non-Reinforced Concrete Pad or Roadway
Foundation: 8” [203 mm] minimum thickness P.C.C.
Important:
To prevent sliding during impact, the pad must be placed against or
tied to an existing structure. Additional below grade supports may also be
necessary as the project engineer directs.
Anchorage: Approved adhesive with 7” [ 178 mm] studs 5 1/2” [140 mm] embedment