Trinity Highway QuadGuard Elite M10, Product Description Assembly Manual

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TrinityHighway.com 18 Revision C September 2021
Site Preparation/Foundation
A QuadGuard ® Elite M10 should be assembled on an existing or freshly placed and cured
concrete foundation (4000 psi [28 MPa] minimum). Location and orientation of the concrete base
and attenuator must comply with project plans or as otherwise determined by the resident project
engineer.
Recommended dimension and reinforcement specifications for new concrete foundations are
provided in Trinity Highway Concrete Foundation drawing, supplied with the system. The system
may only be assembled on reinforced concrete roadway (minimum 6” [150 mm] thick). Assembly
cross-slope shall not exceed 8% and should not twist more than 2% over the length of the system;
the foundation surface shall have a light broom finish.
Caution:
Accurate placement of all steel rebar is critical to avoid interference with
the concrete anchor bolts.
Warning:
Location of the Backup in relation to nearby objects will affect the
operation of the attenuator. Upon impact, the Fender Panels telescope rearward
and extend beyond the rigid Backup as much as 25” [635 mm]. Position the Backup
so that the rear ends of the last Fender Panels are a minimum of 25” [635 mm]
forward of objects that would otherwise interfere with movement of the rearmost
Fender Panels. Failure to comply with this requirement is likely to result in system
performance which has not been crash tested pursuant to MASH criteria and may
also cause component damage which will necessitate maintenance or
replacement of the system.
Warning:
Ensure that there is proper site grading for the QuadGuard ® Elite M10
placement as dictated by the state or specifying agency pursuant to the AASHTO
Roadside Design Guide.
Figure 6
Cross-Slope
8% (5 ○ ) (12:1)
MAXIMUM
LEVELING PAD
(SHOWN EXAGGERATED FOR
CLARITY)