Portable Safety Barrier System For Speeds Up To 100 Km/h [62 … · 2020. 9. 8. · Vulcan Barrier has achieved Test Level 3 (TL-3) as a redi-recting longitudinal safety barrier for

Inst

alla

tion

Man

ual

Portable Safety Barrier SystemFor Speeds Up To 100 Km/h [62 mph] (TL-3)

Vulcan Barrier™

Corporate Offices:35 East Wacker Dr., 11th FloorChicago, IL 60601-2076Telephone: (312) 467-6750FAX: (312) 467-1356

Engineering and Manufacturing Facilities:Rocklin, CAPell City, AL

A Quixote CompanySaving Lives By Design

ENERGY ABSORPTIONSYSTEMS, INC.

http://www.energyabsorption.com/

2

Vulcan Barrier™

ImporImporImporImporImportant Intrtant Intrtant Intrtant Intrtant Introductoroductoroductoroductoroductory Notesy Notesy Notesy Notesy NotesProper design, deployment and maintenance of the VulcanBarrier is essential to assure maximum performance.

It is critical for any users of the Vulcan Barrier to be fullyfamiliar with the manufacturer's instructions for use.

Take the time to review this manual including the Limita-tions and Warnings thoroughly before performing thenecessary work.

Do not attempt to install any longitudinal barrier with-out the proper plans and installation manual from themanufacturer.

If you need additional information, or have questionsabout the Vulcan Barrier, please call Energy AbsorptionSystems’ Customer Service Department. See the backcover for the phone numbers.

SSSSSystem Ovystem Ovystem Ovystem Ovystem OvererererervievievievieviewwwwwVulcan Barrier provides several unique advantages overtraditional portable concrete barriers, or other styles ofportable safety barriers:

* Energy-absorbing

* Quick and easy deployment and retrieval

* Lightweight

* Economical

* Easily repaired after severe impact

* Variety of deployment and end terminal options

Vulcan Barrier is crashworthy and has been thoroughlytested to NCHRP 350 testing procedures.

Vulcan Barrier has achieved Test Level 3 (TL-3) as a redi-recting longitudinal safety barrier for speeds up to 100 km/h.

FFFFFunctionunctionunctionunctionunctionVulcan Barrier functions as a portable longitudinal bar-rier to prevent errant vehicle penetration, vaulting, orunderriding. Traffic is kept from entering the work areaor from hitting exposed objects or excavations. Unlikecones or barricades, Vulcan Barrier provides positive pro-tection for roadside workers.

Impacting vehicles are redirected at a shallow angle inthe vicinity of the impact area, thereby reducing the po-tential for dangerous secondary impacts. Vulcan Barriererabsorbs impact energy and cushions vehicular impactswhile significantly reducing the risk to occupants of theimpacting vehicle.

Table of Contents

Introductory Notes/System Overview…………...System Design………………………..................

Length Of Need…...……………...................End Treatment.………..................................Deflection/Clear Zone..…………...................Other Considerations....................................

Installation..………….........................................Anchoring Instructions ......................................Maintenance and Repair......................................Limitations and Warnings.……………................Standard Drawings.............................................

23889101213161617

3

Vulcan Barrier™

ConstructionConstructionConstructionConstructionConstructionA Vulcan Barrier installation is constructed from a seriesof individual barrier sections. See Figure 1 for approxi-mate physical dimensions and items included with eachsection.

The ends of each section are constructed with knuckles thatinterlock with those of other segments. The end knucklesare vertically aligned to accept a steel connecting pin. Thepin securely joins the sections for maximum impact perfor-mance. The sections can swivel at the pin for easy position-ing around work areas.

Figure 1Vulcan Barrier

4115 m

m [162"]

PIN CEN

TERS

RECOMMENDED MAXIMUM TAPER ANGLE:• 70 km/h [43 mph] 9:1 (6 Degrees)• 100 km/h [62 mph] 13:1 (4 Degrees)

CONNECTING PIN

SSSSSystem Designystem Designystem Designystem Designystem Design

Vulcan Barrier is constructed in a unique shape. The in-wardly sloping ribbed side walls interact with an impact-ing vehicle in a way that resists penetration, vaulting, andunderriding. Sections are also stackable to reduce ship-ping and storage space.

11 750 m

m [463"]

PIN CEN

TERS

813 mm [32"]546 mm [21 1/2"]

4 M 12 MINSTALLED LENGTH 4.115 m [13'-6"] 11.75 m [38'-6"]SYSTEM HEIGHT 813 mm [32"] 813 mm [32"]SYSTEM WIDTH 546 mm [21 1/2"] 546 mm [21 1/2"]WEIGHT PER MODULE 395 kg [870 lbs] 1200 kg [2645 lbs]

4

Vulcan Barrier™

ApplicationApplicationApplicationApplicationApplicationThe Vulcan Barrier can be used in many applications.Some examples are:

* General road maintenance performed by road au-thorities, contractors, local municipalities etc.

* Road construction

* Lane closures

* Toll plazas

* Road Resurfacing

* Excavation or culvert protection

* Detours

* Bridge repairs

* Temporary or permanent installations

* Median or roadside installations

In order to design the most appropriate Vulcan BarrierSystem for a given site, this manual helps to answer thefollowing questions:

* Is the Vulcan Barrier appropriate for my site?

* What is the application? What warrants the useof the Vulcan Barrier?

* How long must the barrier be? Refer to the lengthof need and beginning of length of need forVulcan Barrier installation options.

* How much clear zone is available, and howmuch is required for the correct functioningof the System?

* Are there curves, slopes or curbs present whichmay not suit the Vulcan Barrier?

* Is a fully tested end treatment available to suitmy particular requirement? Refer to end termi-nal section of this manual.

The purpose of this manual is to supply some basic ap-plication information about the Vulcan Barrier and to de-tail its performance when tested to NCHRP 350.

If you would like further assistance, please contactEnergy Absorption Systems Customer Service Department(phone numbers are listed on back cover).

SSSSSystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)

5

Vulcan Barrier™SSSSSystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)ystem Design (cont'd.)

Figure 2

Vulcan Barrier

Refer to Deflection Table

Taper through clear zoneRecommended Maximum Taper Angle:• 50 km/h [31 mph] & 70 km/h [43 mph] 9:1 (6 degrees)• 100 km/h [62 mph] 13:1 (4 degrees)

23 s

ectio

ns (9

5 m

[312

'])23

sec

tions

(95

m)

Wor

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e as

Req

uire

d

B.L.O.N.

4 se

ctio

ns (1

6 m

[52.

5'])

4 se

ctio

ns (1

6 m

)16

Sec

tions

Min

.

3 se

ctio

ns (1

2 m

[39'

])3

sect

ions

(12

m)

6 Se

ctio

ns M

in.

100

km/h

[62

mph

]

70 k

m/h

[43

mph

]

50 k

m/h

[31

mph

]

mruppeHighlight

mruppeHighlight

mruppeHighlight

mruppeLine

mruppeLine

mruppeText Box-ODOT requires ends of the Vulcan Barrier to be anchored.-Ends of the barrier must be shielded or terminated with an ODOT approved End Treatment

6

Vulcan Barrier™TY

PE

ITY

PE

IITY

PE II

TYPE

IITY

PE I

TYP

E I

TYPE

I

TYPE I

TYPE II

TYPE II

TYPE

IITY

PE I

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Figure 3


Wor

kzon

e as

Req

uire

d

B.L.O.N.

6 BayQuadGuard czwith Transition(8.6 m [28'-3"])

6 BayQuadGuard czwith Transition

Alternate DownstreamOption Bidirectional Trafficand Median Applications

Refer to QuadGuard cz Manual

Vulcan Barrier

4 se

ctio

ns(1

6 m

[52'

-6"]

)

16 S

ectio

ns M

in.

6 Se

ctio

ns M

in.

23 s

ectio

ns (9

5 m

[312

'])

4 se

ctio

ns (1

6 m

[52'

-6"]

)

3 se

ctio

ns (1

2 m

[39'

])

100

km/h

[62

mph

]

70 k

m/h

[43

mph

]

50 k

m/h

[31

mph

]

7


Figure 4

Refer to TRITON CET Manual


TRIT

ON E

nd T

reat

men

t

Wor

kzon

e as

Req

uire

d

Vulcan Barrier

B.L.O.N. for 100 km/h [62 mph]

75 m

[246

']

15 s

ectio

ns (6

2 m

[203

'-5"]

)10

0 km

/h [6

2 m

ph]

70 k

m/h

[43

mph

]

50 k

m/h

[31

mph

]

16 S

ectio

ns M

in.

6 Se

ctio

ns M

in.

B.L.O.N. for 70 km/h [43 mph] &50 km/h [31 mph]

23 s

ectio

ns (9

5 m

[312

'])

4 se

ctio

ns (1

6 m

[52'

-6"]

)

3 se

ctio

ns (1

2 m

[39'

])

mruppeLine

mruppeLine

mruppeText BoxTriton is not an ODOT approved end treatment

8

Vulcan Barrier™

Length Of NeedLength Of NeedLength Of NeedLength Of NeedLength Of NeedLength of need (L.O.N.) is defined as the total length of alongitudinal barrier needed to shield an area of concern.It is also described as that part of a longitudinal barrieror terminal designed to contain and redirect an errantvehicle.

The beginning of length of need (B.L.O.N.) differs de-pending on how the Vulcan Barrier is deployed.

If the Vulcan Barrier is deployed as a safety barrier whichcan be tapered through the clear zone without the need foran approved end terminal, the B.L.O.N. is 95 m [311'-8"]from the beginning of the system.

If the Vulcan Barrier is deployed longitudinally and incor-porates the TRITON CET as an end terminal, then theB.L.O.N. is 75 m [246'] from the beginning of the TRI-TON end terminal.

If the Vulcan Barrier is deployed longitudinally and incorpo-rates the QuadGuard cz as an end terminal, which is an-chored to the ground, then the B.L.O.N. is at the very begin-ning of the QuadGuard crash cushion.

The B.L.O.N. sections have greater deflection than the L.O.N.sections.

End End End End End TTTTTreatmentreatmentreatmentreatmentreatmentA terminal is defined by NCHRP 350 as:

"A device designed to treat the end of a longitudinal bar-rier. A terminal may function by (a) decelerating a vehicleto a safe stop within a relatively short distance, (b) per-mitting controlled penetration of a vehicle behind the de-vice, (c) containing and redirecting the vehicle, or (d) acombination of (a), (b) and (c)."

The Vulcan Barrier has been crash tested to NCHRP 350as a Test Level 3 (TL-3/100 km/h [62 mph]) redirectivelongitudinal barrier, and when deployed and taperedthrough the clear zone, does not require a separate endtreatment.

If the site specific conditions require a longitudinal bar-rier and won't allow tapering of the end, then the follow-ing fully tested end terminals may be considered:

The QuadGuard cz end terminal is suitable for postedspeeds up to TL-3/100 km/h [62 mph]. As this terminalrequires anchoring to the pavement, it will offer the short-est Vulcan Barrier deployment. The QuadGuard cz is suit-able for use where the length of need occurs at or nearthe beginning of the terminal. Refer to the QuadGuardmanual for specific detail.


mruppeLine

mruppeLine

mruppeText Box-ODOT Length of Need Requirements are calculated by designers per the Location and Design Manual Volume 1 Figure 602-1-ODOT requires ends of the Vulcan Barrier to be anchored.-Ends of the barrier must be shielded or terminated with an ODOT approved End Treatment

9


The TL-3 results for the 2000P @ 25 degrees are taken directly from NCHRP 350 test results and represent the maximumdynamic deflection experienced. Deflections shown for smaller impact angles and for lower speeds are calculated valuesbased on nominal impact severities of the lower test speeds. No actual test for this vehicle mass and impact angle wascarried out on this system.

Dynamic deflection represents the maximum amount of lateral movement of the system. Testing has confirmed thatthe permanent static deflection is approximately 10% less than the dynamic deflection.

Actual deflections may vary from expected values due to site conditions.

Speed Zone 5 Degrees 10 Degrees 15 Degrees 20 Degrees 25 Degrees Test Level50 km/h [31 mph] 0.25 0.25 0.25 0.50 0.75 TL-160 km/h [37 mph] 0.25 0.25 0.50 0.75 1.0070 km/h [43 mph] 0.25 0.50 0.50 1.00 1.25 TL-280 km/h [50 mph] 0.25 0.50 0.75 1.25 1.7590 km/h [56 mph] 0.25 0.50 0.75 1.50 2.00

100 km/h [62 mph] 0.25 0.50 1.00 1.75 2.10 TL-3

Speed Zone 5 Degrees 10 Degrees 15 Degrees 20 Degrees 25 Degrees Test Level50 km/h [31 mph] 0.25 0.25 0.50 0.75 1.00 TL-160 km/h [37 mph] 0.25 0.25 0.75 1.00 1.5070 km/h [43 mph] 0.25 0.50 0.75 1.50 2.00 TL-280 km/h [50 mph] 0.25 0.50 1.00 2.00 2.7590 km/h [56 mph] 0.25 0.75 1.25 2.25 3.25

100 km/h [62 mph] 0.25 0.75 1.50 3.00 4.00 TL-3

For speeds and angles listed above, the deflection will be less than 0.4 m [1'-4"] when properly anchored.

Vulcan with CZ on Both Ends

Expected Deflection of Vulcan Barrier when Impacted with a 2 Ton Pickup

Unanchored Vulcan

Anchored Vulcan

All deflection calculations are based on the TL-3 BLON

mruppeHighlight

mruppeHighlight

10

Vulcan Barrier™

Other ConsiderationsOther ConsiderationsOther ConsiderationsOther ConsiderationsOther ConsiderationsCertain conditions may effect the performance of the Vulcan Barrier. Since every job site is unique, the designer needsto consider the following conditions when incorporating the Vulcan Barrier in the design.

6O MAX.

Figure 5

5% (3 DEG.)

Figure 6

Figure 7

IMPORTANT!In order to limit system deflection in critical areassuch as past the work zone or other hazards,installation of the limiting spacers between thebarrier segments is required.

SlopesSlopesSlopesSlopesSlopesCross slopes

The Vulcan Barrier may be placed on cross slopes up to5% (3 deg.) (Figure 6).

Longitudinal slopes

The Vulcan Barrier may be placed on longitudinal slopesup to 5%(3 deg.) (Figure 7).

CurCurCurCurCurvvvvvesesesesesThe ends of each section are constructed with knucklesthat interlock with those of other segments. The endknuckles are vertically aligned to accept a steel connect-ing pin. The pin securely joins the sections for maximumimpact performance. The sections can swivel up to 6 de-grees at the pin for easy positioning around work areasor following road contours. See Figure 5.

5% (3 DEG.)


MINIMUM CURVE RADIUSR38m [124'-8"]

11

Vulcan Barrier™

CrestCrestCrestCrestCrestThe Vulcan Barrier has the ability to conform to a hill upto 20:1 (see Figure 8). Please note the maximum longi-tudinal slope in Figure 7.

Figure 8

Figure 9

It is important to consider the roadway's cross sectionas it can affect traffic barrier performance. Curbs, slopes,shoulders, and stepped medians can cause errant vehiclesto vault or submarine a barrier or to strike a barrier sothat the vehicle overturns. Optimum barrier performanceis provided by relatively level surface in front of and be-hind the barrier. Where a barrier is to be installed in thevicinity of an existing curb and the cost of removing thecurb cannot be justified, the designer should locate thebarrier so that the effects of the curb are minimized.

DitcDitcDitcDitcDitchhhhhThe Vulcan Barrier has the ability to conform to a ditchup to 20:1 (see Figure 9). Please note the maximum lon-gitudinal slope in Figure 7.

Figure 10


201

120

12

Vulcan Barrier™InstallationInstallationInstallationInstallationInstallation

PPPPPreparationreparationreparationreparationreparationBegin preparing for the installation by thoroughly review-ing the specified barrier location, layout and orientationas per the approved traffic management plan.

Determine the number of segments required for the in-stallation. The installed length of each Vulcan Barrier seg-ment is 4 m [13'-1"] or 12 m [39'-4"]. Consideration mustbe given to determine if an end treatment is required andallow for the length of the treatment in determining seg-ments required. A visual inspection should be carried outto confirm the suitability of all segments. Should visibledamage be evident in any segments, they should be sentfor inspection and refurbishment prior to use.

WARNING!The correct safety equipment and approved trafficmanagement must be used as required for anyinstallation using the Vulcan Barrier.

ReqReqReqReqRequired uired uired uired uired TTTTToolsoolsoolsoolsoolsFor a typical installation, the recommended tools andequipment are:

1. Vulcan Barrier Installation Manual

2. Traffic control plan and approval (as required)

3. Traffic control equipment (as required)

4. A truck mounted crane or forklift suited to a mini-mum 1500 kg lift rated to handle the load ex-pected and appropriate slinging gear. Each VulcanBarrier is fitted with a central lifting point, sopositioned as to centrally balance the barrier seg-ment. When lifting 12 m [39'-4"] segments, it isadvised to tether the unit at both ends so as toaid stability. See photo.

Caution: Refer the the minimum installedlengths as illustrated in this manual to ensurecompliance to NCHRP 350.

The Vulcan Barrier is designed to stack up to 3segments in height so provision must be madeto lift from a height of 2.4 metres plus the trayheight.

DeploDeploDeploDeploDeploymentymentymentymentyment1. Begin deployment at the upstream traffic end of the site

and work downstream. Work from the non-traffic sideof the installation whenever possible. Unloading pro-ceeds much faster if one person remains on the truckand two people work on the ground. If site conditionspermit, a fourth person can drive the truck so that seg-ments can be unloaded continuously as the installationis progressing.

Note: When deploying 12 m [39'-4"] Vulcan Bar-rier sections, it is suggested that attention be paidto ensuring the lap of the thrie beam goes with thedirection of travel. This is not critical to the redi-rective properties of the Vulcan Barrier. It has beenfully crash tested to confirm that panel lap is notrelevant to the Vulcan Barrier, however, to saveconfusion, following this advice will prevent un-necessary questions from people confusing VulcanBarrier with Guardrail.

2. Align the segments according to the specified con-figuration and layout in the traffic control plan.

Caution: Refer to the deflection graph con-tained in this manual when determining mini-mum clearance between barrier and hazard.

Caution: The existence of any cross slopes inexcess of 5% (3 deg.) or curbs may create avaulting effect on the impacting vehicle.

3. Bring the segments together and insert a connectingpin through the overlapping end knuckles at eachjoint. Push the pin in until it is flush with the top ofthe segments.

13

Vulcan Barrier™

IMPORTANT!Ensure that the deflection limiting spacers are installedbetween all segments where the minimum deflectionof the system is desired i.e. Beginning of Length OfNeed (B.L.O.N.).

Caution: When deploying the Vulcan Barrier,care must be taken not to exceed the maxi-mum recommended taper angle as detailed inthis manual.

4. If an end treatment is specified for the layout, followthe instructions provided by the manufacturer andinstall it at this time.

Caution: A crashworthy end treatment must besupplied where warranted to ensure propercrash performance.

Deployment is now complete. Take the time to doublecheck the integrity of the system so as to confirm func-tionality.

RetrieRetrieRetrieRetrieRetrievvvvvalalalalalRetrieval is a reverse of the instructions for deployment.

Installation (cont'd.)Installation (cont'd.)Installation (cont'd.)Installation (cont'd.)Installation (cont'd.)

ReqReqReqReqRequired uired uired uired uired TTTTToolsoolsoolsoolsools1. Vulcan Barrier Installation Manual

2. Traffic control plan and approval (as required)

3. Traffic control equipment (as required)

4. Rebar Cutting Bit

5. 22 mm (7/8") Concrete Drill Bit (*Two Fluted)

6. Grinder, Hacksaw or Torch (optional)

7. Drill Motor

* Energy Absorption Systems recommends usingtwo fluted drills to achieve optimum tensilestrength when installing the MP-3 anchoringsystem.

8. 1/2" drive sockets: 1 1/8", 1 1/4"

9. Ratchet for the above sockets

10. Torque Wrench: 200 ft-lbs.

12. Safety Glasses

13. Gloves

14. Nylon bottle brush for cleaning 7/8" drilled holes

15. Rags, Water, and Solvent for Touch-up

Note: The above list of tools is a general recommen-dation. The actual number of tools required willdepend on specific site conditions and the com-plexity of the installation.

AncAncAncAncAnchoring Instructionshoring Instructionshoring Instructionshoring Instructionshoring Instructions

InspectionInspectionInspectionInspectionInspectionA visual inspection of each barrier segment is requiredprior to shipping.

Barrier segments which show evidence of prior impactshould be thoroughly inspected for any sign of distortionor disfigurement.

Should any Vulcan Barrier segment show signs if dam-age as listed, it must be refurbished prior to reuse.

14

Vulcan Barrier™

Figure 11Anchor Strap Locations

Locate anchor straps at panelconnection points as shown. 4.13 m [13.5']

AncAncAncAncAnchored hored hored hored hored VVVVVulcan Barrierulcan Barrierulcan Barrierulcan Barrierulcan BarrierFFFFFoundationsoundationsoundationsoundationsoundationsThe Vulcan Barrier may be installed on any of the followingFoundations using the specified anchorage:

Foundation A: Concrete Pad or Roadway

Foundation: 150 mm [6"] minimum depthPortland Cement Concrete (P.C.C.)

Anchorage: MP-3® with 180 mm [7"] studs140 mm [5.5"] embedment

Foundation B: Asphalt over P.C.C.

Foundation: 75 mm [3"] minimum Asphalt Concrete(A.C.) over 75 mm [3"] minimum (P.C.C.)

Anchorage: MP-3 with 460 mm [18"] studs420 mm [16.5"] embedment

Foundation C: Asphalt over Subbase

Foundation: 150 mm [6"] minimum (A.C.) over150 mm [6"] minimum Compacted Sub-base (C.S.)


Foundation D: Asphalt Only

Foundation: 200 mm [8"] minimum (A.C.)


Note:

Walk-up inspections are recommended at leastonce every six months for installations on asphalt.

Foundation Specifications

For foundations A, B, C and D mentioned above

A. C. (Asphalt Concrete)

AR-4000 A. C. (per ASTM D3381 '83) .75" Maximum,Medium (Type A or B) aggregate

Sieve Size Operating Range (%)Pass-ing

1" 100

3/4" 95-100

3/8" 65-80

No. 4 49-54

No. 8 36-40

No. 30 18-21

No. 200 3-8

P.C.C. (Portland Cement Concrete)

Stone aggregate concrete mix

4000 psi minimum compressive strength

(Sampling per ASTM C31-84 or ASTM C42-84a, test-ing per ASTM C39-84)

C.S. (Compacted Subbase)

150 mm [6"] minimum depth 95% compaction

Class 2 aggregate

Sieve Size Moving Average % Passing

3" 100

2 1/2" 90-100

No. 4 40-90

No. 200 0-25

AncAncAncAncAnchoring Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)

ANCHOR STRAP ANCHOR STRAP

15

Vulcan Barrier™

Use MP-3 Polyester Anchoring System supplied byEnergy Absorption Systems, Inc. or approved equal.

Vulcan Barrier Sections installed on asphalt mustbe inspected to ensure the anchors are still properlyset following each impact. Re-anchor as necessary.

Position the Vulcan Barrier sections.

Locate anchor straps at panel connection points as shownin Figure 11.

Use the Anchor Straps as templates to drill anchor holes.Refer to figures 12 & 13 and instructions contained inthe MP-3 Polyester Anchor box supplied with the systemfor detailed anchoring instructions.

Figure 13Anchoring the System

ANCHOR STRAP

18" THREADED ROD MP-3

A

B or C

---76mm [3"]76mm [3"]

152mm [6"]203mm [8"] --- ---

A B C---

152mm [6"]460mm [18"]460mm [18"]460mm [18"]

Materials:

A- Asphaltic Concrete (per ASTM D3381)Asphalt Binder AR-4000Asphalt Aggregate 3/4" [19 mm] Max. Med A B

B- 28 MPa [4000 PSI] P.C Concrete(Sampling per ASTM C31-84 or ASTM C42-B4A,testing per ASTM C39-84)

C- Sub-base, prepared and compactedClass 2 Aggregate95% compaction, minimum layer

AncAncAncAncAnchoring Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)horing Instructions (cont'd.)

CAUTION:40 mm [1.50"]

MAX. STUD HEIGHT

Figure 12

MP-3 ANCHOR

BACKUP OR MONORAIL

ROADWAY

Proper Stud Height

16

Vulcan Barrier™

The Vulcan Barrier has been fully tested and evaluated asper the recommendations of NCHRP 350.

The Vulcan Barrier is capable of decelerating and redi-recting an errant vehicle (820 kg and 2000 kg [1808 lbsand 4409 lbs]) at speeds up to 100 km/h [62 mph] (TestLevel 3) and angles up to 25 degrees with maximumslope/cross slope of 3 degrees in deployment.

To ensure adequate performance in the event of an im-pact, the Vulcan Barrier must be deployed and maintainedin accordance with the manufacturer's instructions,NCHRP 350, and local authority guidelines.

Impacts that exceed the design capabilities described inthis manual (vehicle weight, speed and impact angle) maynot result in acceptable crash performance as describedin NCHRP 350 relative to structural adequacy, occupantrisk and vehicle trajectory factors.

Higher than reported deflections can be expected in theBLON section.

Should attachments be added to increase the height ofthe Vulcan Barrier such as Anti Debris Panels or AntiGawking panels, the following should be considered. IfPanels are fitted, Anchor Straps as detailed (pages 13through 15) must be affixed every 48 m [157'-6"] to pre-vent high winds or impacts from high bumper heightvehicles toppling the system. If Shade Cloth is added toprovide anti gawking properties, a maximum of 56% lighttransmission is recommended.

LimitationsLimitationsLimitationsLimitationsLimitationsand and and and and WWWWWarningsarningsarningsarningsarnings

MaintenanceMaintenanceMaintenanceMaintenanceMaintenanceand Repairand Repairand Repairand Repairand RepairEach Vulcan Barrier segment is made up of eleven maincomponents, all of which are fully replaceable as designedto ensure a long service life.

The Vulcan Barrier is bolted together using standardguardrail bolts so any individual component can be eas-ily removed and replaced.

Barriers which show evidence of impact will require closeinspection of all struts, braces and supports showingparticular attention to weld point integrity.

It is not recommended to self-repair any components asthis will compromise the integrity of the barrier in regardto its original design specification. Any damaged sectionsmust be replaced with original modular sections suppliedby the manufacturer. Failure to do so will negate themanufacturer's guarantees in regard to the tested per-formance of the Vulcan Barrier.

Details and specifications for the Vulcan Barrier are con-tained in the System Assembly Drawings at the end ofthis manual.

17

Vulcan Barrier™

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23

Vulcan Barrier™NotesNotesNotesNotesNotes

Customer Service Department

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http://www.energyabsorption.com/ ©2008 Energy Absorption Systems, Inc.Rev. 1/28/08Part No. 2750581-0000

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