VALTIR QuadGuard, Инструкция по сборке

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Valtir.com 18 Revision D November 2022
Site Preparation/Foundation
A QuadGuard
®
should be assembled only on an existing or freshly placed and cured concrete
base (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 Valtir concrete foundation drawings, supplied with the system. The system may be
assembled on a non-reinforced concrete roadway (minimum 8” [200 mm] thick). Deployment
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 30” [760 mm]. Position the Backup
so that the rear ends of the last Fender Panels are a minimum of 30” [760 mm]
forward of objects that would otherwise interfere with movement of the rearmost
Fender Panels. Failure to comply with this requirement will result in impaired
system performance offering motorists less protection and component damage.
Figure 6
Cross-Slope