Release 08/21
High-Containment Roadside Safety Barrier
16
HIGHWAY
9. Rails are attached to the Ezy-HC-Carriage using the
M16x30mm carriage bolts. The post bolts are identified
by the socket recess located in the head of the bolt.
The bolts are tightened to snug tight using a 10mm
hex. key.
10. Rails are spliced together at every second post using
M16x32mm mushroom head bolts and oversized nuts.
There are 12 bolts required per splice connection. A
pinch bar may be used to assist in the alignment of
splice holes. The use of a driving pin to elongate the
slots is NOT to be used since this may cause tearing of
the rail at the slot location. The bolts are tightened to
snug tight.
11. Rails are orientated so that no leading edge is
presented to the traffic face as shown in Figure 15.
12. It is recommended that posts be installed only a few
metres ahead of rail assembly to ensure correct post
spacing and alignment. On curves, the rails can be used
as a template and laid on the ground to determine
post locations.
13. The construction of Ezy-Guard HC shall form a smooth
line vertically and horizontally when viewed along
the line of the system, free from humps, sags or other
irregularities.
14. The Ezy-Guard HC components are to be free from splits,
burrs or sharp edges after installation. Any minor damage
is to be repaired in accordance with section 7.4.
15. Any disturbed pavement or material around a post
shall be left dense, tight, and smooth so that resistance
to water penetration is similar to that of the adjacent
surface.
7.13 Installation Tolerances
•
The tolerance on height of the barrier shall be plus or
minus 20mm.
•
The tolerance for the line of the barrier shall be plus or
minus 20mm in plan view.
•
The tolerance for departure from the upright axis shall be
plus or minus 15mm at the top of the barrier.
•
The tolerance on post spacing shall be plus or minus 25mm.
8.0 mAIntenAnce
It is recommended that annual inspections be performed to
ensure the following;
•
The system is appropriately delineated;
•
Debris has not accumulated around the system that may
impede the performance of the barrier or the trajectory of
an impacting vehicle;
•
The system is suitably anchored with appropriate
terminals and/or transitions. If the system is anchored with
terminals, the cable assembly shall be taut and tensioned
to its recommended value; and
•
All splice bolts and post bolts are snug tight.
9.0 product StorAGe
All posts and rails are hot dip galvanized in accordance
with AS/NZS 4680. It is important that stored galvanized
work is stacked so that each item is well ventilated and can
adequately drain rainwater from its surfaces.
Poor storage can give rise to wet storage stain (white rust)
which is caused by water (rain or condensation) in badly
drained or ventilated conditions. This can occur very quickly,
particularly in warm, humid conditions.
Figure 13: Carriage Bolt
Figure 14: Splice Bolt & Nut
Figure 15: Orientation of Rail Lap
TRAFFIC DIRECTION
Содержание Ezy-Guard HC
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