Trinity Highway QuadGuard II, Product Description Manual

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TrinityHighway.com 10 Revision H November 2019
Transitioning
Quad-Beam™ End Shoe
Transition Panel
The Quad-Beam™ End Shoe Panel transitions the QuadGuard
®
II system to vertical faced
concrete structures whether it is a concrete Backup or concrete barrier wall (p. 13) . An Extended
End Shoe is also available. In cases where the corners of the hazard are not chamfered, it may
be necessary to add wheel deflectors to the structure in order to prevent wheel interaction.
Quad-Beam
™
to Guardrail Transition Panel (W-Beam and Thrie-Beam)
The Quad-Beam™ to W-Beam and Quad-Beam™ to Thrie-Beam Transition Panels transition the
QuadGuard
®
II system to new and existing runs of standard guardrail (p. 13).
Quad-Beam™ to Safety Barrier Transition Panel
There are several options available when transitioning the QuadGuard
®
II system to safety shape
barrier depending on the shape and position of the barrier.
When transitioning to barriers with a “New Jersey” style profile, the 4" offset Transition Panel is
most commonly used (p.
13). For transitioning to barriers that are in line with the side of the
system, use transition assembly 616041B or 616044B. For transitioning a wide system to barrier
that runs parallel to the centerline of the system, transition assembly 616048B or 616049B is
used. A 9” offset Transition Panel is also available for transitioning to barriers that are in line with
the side of the system.
When transitioning the Single Slope style barriers and parapets, 6” and 8” offset Transition Panels
are available. For transitioning a wide system to barrier that runs parallel to the centerline of the
system, a 6” offset panel is available.
How do you determine the Transition Panel offset?
Transition Panel offset is determined by measuring the distance between the face of the barrier
and the top edge of the Backup Diaphragm at 32” above ground level (Figure 7). Remember,
when assembling the QuadGuard
® II that the correct Transition Panel offset must be achieved in
order for the offset bracket to nest between the barrier and Transition Panel ensuring proper
performance of the transition.
Figure 7
Transition Panel Offset