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16

Release  07/22

Roadside Safety Barrier

8.  

Rails are attached to the Ezy-Carriage using the 
M16x30mm post 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.

9. 

Rails are spliced together at every second post 
using M16x32mm mushroom head bolts and 
oversized nuts. There are 8 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.

10.   Rails are orientated so that no leading edge is 

presented to the traffic face as shown in Figure 18.

11.   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.

12.   Where possible, the barrier should form a smooth 

line vertically and horizontally when viewed along 
the line of the system, free from humps, sags or 
other irregularities.

13.   The Ezy-Guard Smart components are to be free 

from splits, burrs or sharp edges after installation. 
Any minor damage is to be repaired by applying 
two coats of an organic zinc rich paint.

14.   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   Back to Back W-Beam Installation

The Ezy-Guard Smart system can also be used in median 
applications where the W-Beam is installed on both sides 
of the post. This configuration requires a special post with 
resistance tabs on both sides of the post. The installation 
procedure is the same as for a single sided installation with 
steps 8 thru 15 repeated on the opposite side of the post. 
Refer drawing Ezy-SM-035 for further assembly detail.

7.14   Installation Tolerances

• 

The tolerance on height of the barrier shall be 
+25mm/-0mm.

• 

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

8.1   Preventative 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.

Figure 16: Post Bolt

Figure 17: Splice Bolt & Nut

Figure 18: Orientation of Rail Lap

TRAFFIC

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TRAFFIC

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Summary of Contents for Ezy-Guard Smart

Page 1: ...www ezyguard com Release 07 22 ProductManual ...

Page 2: ...and rail stiffening plates This unique connection provides a soft ride down for the occupants and smooth vehicle containment and redirection 2 0 Specifications Ezy Guard Smart Z Post Length 1 600mm Ezy Guard Smart Z Post Mass 12 3kg Ezy Guard Smart System Mass 18 6kg per metre Rail Height Above Ground 730mm Z Post Height Above Ground 720mm Post Spacing 2 000mm Ezy Guard Smart SystemWidth 200mm MAS...

Page 3: ...est matrix requires the following impacts 1100kg car travelling at 100km h and 25 degrees 2270kg pick up travelling at 100km h and 25 degrees Crash test impact conditions are defined by the mass speed and angle of the impacting vehicle Crash test standards and performance levels can be compared by calculating the impact severity IS IS M V sin θ 2 Where IS is the impact severity in joules J M is th...

Page 4: ...ts theZ postsaredesigned to yield by bending near ground level This bending action absorbs impact energy reducing the potential for postfracturing Afracturedorsplitguardrailpostpresents a significant laceration hazard to vulnerable road users TheEzy GuardSmartdesigndoesnotcontainanyelements that become projectiles and there are no aggressive edges Shielded Posts The revolutionary design of Ezy Gua...

Page 5: ...ded NCHRP 350 Test Level 3 or Test Level 4 impacts 5 2 Rapid Installation Repair Ezy Guard Smart installation can be up to twice as fast to install than conventional guardrail barriers and unlike cable barrier systems no concrete is required The Ezy Guard Smart design uses fewer components and features 1 600mm Z posts that are rapidly driven into the ground The Z post embedment depth is just 880mm...

Page 6: ...rcomponentsthanthepublic domain guardrail systems Z posts weighing just 12 3kg are 50 lighter than traditional C posts The lightweight Z post reduces manual lifting by installation crews The rounded edges of the Z post provides a handlelike grip when lifting reducing the possibility of hand lacerations The Z profile allows the installer to maintain a firm grip and facilitates correct lifting techn...

Page 7: ...ffsets is shown in Figure 6 and is derived using a point mass model and assumes maximum steering and a coefficient of friction of 0 7 dry pavement If the deflection needs to be reduced due to the proximity of a road side hazard this can be achieved by reducing the post spacing Refer Table 2 for deflections with post spacing reduced to 1m The reduced post spacing should be initiated 10m upstream an...

Page 8: ...arrier 8mvehicleoffsettobarrier Impact Angle degrees Table 1 Ezy Guard Smart Deflections Speed km h Dynamic Deflection m Post Spacing Test Standard Dynamic Deflection 70 2m MASH TL2 0 90 100 1m MASH TL3 1 05 100 2m MASHTL3 1 65 70 50 60 80 90 100 110 120 130 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 70 50 60 80 90 100 110 120 130 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 m Example Example Speed ...

Page 9: ...cle Theclearzoneisdependantuponthespeedofthevehicle Guidelines are contained with regulatory publications Terminals should be installed in accordance with the proprietor s drawings and specifications Z posts are not to be used in the terminals unless approved by the proprietor The installation of terminals will typically incorporate the use of blocking pieces positioned between the posts and rail ...

Page 10: ...bedment depth has been modified in accordance with Table 4 Anymodificationcarriedoutafterfabricationwillrequire repair to the galvanized coating A corrosion resistant treatment shall be applied to the freshly cut surface ICP recommend a Zinc metal spray in accordance with ISO 2063 or AS NZS 2312 7 5 Soil Requirements Embedment Depth The Z post is designed to yield by bending near ground level duri...

Page 11: ...direct the errant vehicle The specially engineered Z post dissipates energy by yielding through bending near ground level This means that typical recommendations for the installation of a traditional guardrail post in rock are not applicable to the Z post When rock is encountered the installation guidelines as detailed in Table 4 are applied If required the bottom of the post may be cut onsite by ...

Page 12: ...ered at the surface Drill a 110 300mm diameter hole to a depth of 450mm install the post in the hole and backfill Rock is encountered within 450mm of the surface Drill a 110 300mm diameter hole 450mm into the rock or to a minimum total post embedment depth of 650mm whichever comes first install the post and backfill 450 650 min 0 450 rock soil 450 rock ...

Page 13: ...e rock or to a minimum total post embedment depth of 650mm whichever comes first install the post and backfill Rock is encountered 600mm to 800mm below ground Drill a 110 300mm diameter hole 50mm into the rock or to a minimum total post embedment depth of 800mm whichever comes first and install the post and backfill 200 650 min 450 600 rock soil 50 800 min 600 800 rock soil ...

Page 14: ...shop curved to fit any radius from 2 4m to 45m Convex Curves in excess of 45m do not require shop curving as the rail can be field installed to suit Guardrail may be curved either concave or convex to the traffic face and can be part curved along its length to suit site requirements 7 11 1 Measuring Curvature 1 Mark along the arc of the curve at 4m intervals 2 Measure the corresponding chord lengt...

Page 15: ...t such that it reduces the effective operation of the safety barrier or its design life or introduces sharp tearing edges nor shall it cause damage to pavement IftheEzy Carriagecannotfreelymoveas it is attached to the post as a result of deformation of the post during installation then the post shall be replaced The use of a vibrating post hammer will reduce deformation to the top of the post and ...

Page 16: ... to that of the adjacent surface 7 13 Back to BackW Beam Installation The Ezy Guard Smart system can also be used in median applications where the W Beam is installed on both sides of the post This configuration requires a special post with resistance tabs on both sides of the post The installation procedure is the same as for a single sided installation with steps 8 thru 15 repeated on the opposi...

Page 17: ...red W Beam rail has been disassembled 7 Determine the required lift by measuring the height of overlay The nominal W Beam height of Ezy Guard Smart is 730mm 8 Rails are to be re attached to the Ezy Lift carriage using a M16x30mm post bolts and 75x45mm rectangular washer at each post 9 Rails are overlapped so that no leading edge is presented to the traffic face as shown in Figure 18 10 Rails are s...

Page 18: ...rance from design position of rail 25mm post spacing tolerance measured at top of post rail rail Plan View Side View 15mm Front View 15mm 20mm lateral tolerance from design position of rail 25mm post spacing tolerance measured at top of post rail rail Plan View Side View Height 25mm 0mm 15mm Front View 15mm ...

Page 19: ...Yes No Have the rails been spliced observing the correct lap Yes No Have the rails been spliced with M16x32mm mushroom head bolts Yes No Are all splice bolts and post bolts snug tight Yes No Is Ezy Guard Smart appropriately delineated Yes No Is Ezy Guard Smart suitably anchored with approved terminals Yes No Are the cables in the terminals tensioned to their nominated torque Yes No Has any minor d...

Page 20: ...pose steel structures to anairtemperatureof800 Cforperiodsofupto120seconds however zinc coatings are generally reflective and will not absorb heat at the same rate as an uncoated steel surface Depending on the section thickness of the steel the actual steel surface temperature may not exceed 350 C Typically the bushfire flame duration and intensity are not high enough to compromise the structural ...

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Page 25: ...G 5 26 11 2019 PART LIST AND TITLE BLOCK UPDATED VB BS LG 1 01 04 16 TITLE CHANGE LG SE LG 2 10 04 16 TITLE CHANGE LG SE LG 3 03 12 2015 AU REFERENCE REMOVED LG SE LG 4 02 03 2016 FOOTPRINT DIM ADDED LG SE LG KIT EZY GUARD 4 MEDIAN CONFIGURATION ITEM PART DESCRIPTION QTY 1 10007562 MEDIAN Z POST 1650mm GALV DOUBLE NOTCHED 2 2 10000985 W BEAM 3810mm NLL 2 3 10004115 SMART CARRIAGE 4 4 10001832 M16 ...

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Page 30: ...30 Release 07 22 Notes ...

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Page 32: ...ide NT Brisbane Melbourne Newcastle Perth Sydney Wagga Auckland Christchurch Head Office Sydney 57 65 Airds Road Minto NSW 2566 Ph 61 2 9827 3333 Fax 61 2 9827 3300 Local call within Australia 1300 446 425 Email sales ingalcivil com au For more information V 140817 ...

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