Session 4KY Type 1 End Treatment

ET-PLUS Slide 6 by Trinity Highway Products

SKT-SP Slide 63 by Road Systems

How do you know which version of a Proprietary Guardrail End

Treatment KY is Using?

Go to the KYTC Div of Design Home Page

http://transportation.ky.gov/Highway-Design On the lower right click on Standard

Drawing Brings up:

Standard Drawings Active Sepia List Approved Shop Drawings - Click

The drawings show the version PLUS, SP, 27 etc.

Basic Info – very useful

http://transportation.ky.gov/Highway-Design Design Home PageStandard Drawings Lower Right

Standard DrawingsActive Sepia ListApproved Shop Drawings

Click

Approved Shop DrawingsClick “Alternate 1 Trinity ET

Plus”

Approved Shop Drawing “Alternate 1 Trinity ET Plus”

The ET-Plus KY Uses is50’, 7 SYT Post & 1 HBA Post

The Title Block Details which ET-Plus Model KY is using

ET-Plus Parts ListYou can learn a lot just looking

at the Parts List and the Drawing

Standard Drawing RBR-020 Guardrail End Treatment

Type 1

Standard Drawing RBI-004Installation of Guardrail End

Treatment Type 1

Installation Instructions for Proprietary Guard Rail End

Terminals This Std Draw Note appears on each Proprietary End

Treatment used in KY - “The Manufacturer SHALL furnish two (2) sets of shop plans to the contractor with each installation”

Each Proprietary End Treatment “see shop drawings” Added to Sect 719.03 of 2012 Std Specs: “Proprietary

end treatments SHALL be installed according to the manufacturer’s assembly or installation instructions”

SHOULD NOT LET THE CONTRACTOR BEGIN INSTALLATION BEFORE SUPPLYING YOU WITH THESE SHOP PLANS & INSTALLATION INSTRUCTIONS – Both you and the contractor need these documents to properly do your jobs of installing and inspection propriety guardrail end terminals

Type 1 Trinity – ET-Plushttp://www.highwayguardrail.com/products/etplus.html

Type 1 ET-PlusStandard Drawing Note

“The Manufacture Shall Furnish Two (2) Sets of Shop Plans to the Contractor with Each Installation”

For the ET-Plus this is on line at http://www.highwayguardrail.com/pro

ducts/pdfs/ETPlus-Manual.pdf Call 1-800-527-7976 if you do NOT Understand Manual

This Manual is cumbersome and somewhat hard to follow

http://www.highwayguardrail.com/products/pdfs/ETPlus-Manual.pdf

ET-Plus - Absorbs Energy by Extruding the Rail Thru Impact Head and Knocking Down Post

Hit ET-Plus with SYT Post that Bend (Yield) upon

Impact

ET-Plushttp://www.highwayguardrail.com/products/etplus.html

Energy Absorbing End Treatment 50 feet long Post 1 - HBA Post (Hinged Break-

Away) Post 2-8 7 SYT Post (Steel Yielding

Terminal) Has a Strut between Post 1&2 No Tube or Soil Plates Standard Guardrail begins at Post 9

ET-Plushttp://www.highwayguardrail.com/products/etplus.html

Do Not attach Guardrail to Post 1 Under no circumstances shall the

guardrail within the ET-Plus Pay Limit be Curved – see Installation Instructions

ET-Plus Installing HBA Post-Bottom

Post 1

Install the Bottom of the HBA Post such that the LARGE HOLE 13/16” is placed downstream (away from the Impact Head)

ET-Plus Installing HBA Post-Top

Post 1 Align the Holes of the Post Plates

(either side of Ears) on the Top and Bottom Post

Insert a 3/8” x 2” Hex Head Bolt through the 7/16” hole in the Post Plates (Ears) with washer and lockwasher under the 3/8” Nut (one bolt assembly on each side of Post)

Note 3/8” Bolts can be installed with nuts inside or outside of Post Plates

ET-Plus Installing HBA - Top Post 1

Are Lock Washer & Washer on??

ET-Plus Installing HBA Post-Top

Post 1 On the side opposite the Strut -

Insert a ¾” x 2 ½ ” Hex Head Bolt through the 13/16” hole in the Post Plates with washer and lockwasher under the ¾” Nut

Note ¾ ” Bolts can be installed with nuts inside or outside of Post Plates

DO NOT install the ¾” Bolt on the Strut Side until installing the Strut

ET-Plus Installing HBA Post - Top Post

1Are Lockwasher & Washers

on??

Final Assembly @ Base of Post 1

From ET-Plus Shop Drawing

Final Assembly @ Base of Post 1

Washer but does not have Lockwasher

Washer & LockWasher

ET-PlusPost 2 – 8 SYT Post

If properly Graded, drive all the 6’ SYT Post to the optimum depth where centers of the 4 Yielding Holes through the Flanges are at the Ground Line

Note: Post 2 does NOT have an offset block

Note: Post 3-8 receive 8” offset blocks

ET-PlusInstalling the Strut Post 1

Place Angle Strut on the Flange of the HBA Post 1 with ¾” Hex Head Bolt placed through the top and bottom Post Plates and connect with a ¾” Washer and Lockwasher under the ¾” Nut.

Note: Strut can be placed with one of the leg flat or leg edge on the ground

Note: Strut can be installed on traffic side or field side of the Post

Installing the Strut Post 1Again where is the Washer &

Lockwasher??

ET-PlusInstalling the Strut Post 2

Place 2 – 7/16” Hex head Bolts with Washer into the two Slotted Holes of the Strut

Place a Lockwasher and Nut on the ends of each of the Inserted Bolts

Tighten Nuts to snug position

ET-PlusInstalling the Strut Post 2

Washers are Important

Incorrect - Loose Fit Without Washer & Lockwasher

CorrectTight Fit With Washer

ET-PlusInstall Offset Blocks & Rail

PanelsPost 3 - 8

25’ or 12’6” Rail Panels are acceptable Splice the rail Panels with 8 - 5/8” x 1

¼” HGR Splice Bolts and Nuts Do NOT connect Rail Panel @ Post 1 NO Offset Blocks @ Post 1 or 2 Post 3-8 Insert 5/8” x 10” HGR Bolt thru

Rail Panel, 8” Offset Block and SYT Post Connect with 5/8” Round Washer and

HGR Nut

Post 2 No Offset BlockPost 3-8 8” Offset Block

Composite or Wood

ET-Plus Installing Rail Panel to Post

2 NO Offset Block @ post 2 Insert 5/8” x 1 ¼” HGR Bolt

through the Rail Panel and SYT Post @ Post 2

Connect with 5/8” Round Washer and HGR Nut

ET-Plus Installing Rail Panel to Post

2

ET-PlusInstalling the Cable Anchor

Assembly Secure Cable Anchor Assembly to the

Rail by Inserting the Square Protruding Hooks/Lugs into Square Holes in Rail Panel toward Post 1. Secure by pulling the Bracket toward the Impact head insuring the Hooks/Lugs are well Seated into the Square Holes.

Protruding Hooks /Lugs on ET-Plus Cable bracket

ET-PlusInstalling the Cable Anchor

AssemblyCable Bracket

Protruding Hooks /Lugs on ET-Plus Cable bracket

Post 1

ET-PlusInstalling the Cable Anchor

Assembly Slide one end of Cable into the Cable

Anchor Bracket and the other end into Post 1

Place a 1” Washer and Hex Nut on the Bracket End near Post 2 and tighten until at least 2 Threads are showing

Place Bearing Plate on Impact Side of Post 1 where Cable extends through Post 1

Bearing Plate must have Long Dimension (5”) Up

Bearing Plate with Tabs on both sides to keep Bearing Plate Oriented with 5” UP

ET-PlusInstalling the Cable Anchor

Assembly Place 1” Washer and Hex Nut on the

end of the Cable extending through Post 1

Restrain the Cable with locking pliers at the end of the Cable being tightened

Tighten the Hex Nuts on the Cable Ends until TAUT – it is considered TAUT when Cable does not deflect more than 1” when pressure is applied

TightenAnchorCable – Using Vice Grips

ET-PlusInstalling the Cable Anchor

Assembly Shank portion of Anchor Cable MUST BE

positioned so it bears on the bottom edge of the web of the HBA Post (Post 1)

Shank portion of Cable must also be centered Horizontally so the Bearing Plate bears uniformly on both Fingers of Post 1

Shank Portion of the Cable Bears on Bottom Edge of HBA

Post

ET-PlusInstalling the Cable Anchor

Assembly

47

What happened here???Impacting Vehicle NOT

Contained

What happened here???WHAT is on the ground &

WHY?

ET-PlusInstalling the Extruder Head

Rail feeds out the Extruder Head away from traffic – Arm points away from traffic

Push the Extruder Head as far as it will go on the Rail panel, making sure the Rail is in the Channel Chute

Place the Extruder head against the HBA Post (Post 1) parallel to the ground

ET-PlusProperly Installed Extruder

HeadPushed all the way on

Improper Installation - Extruder Head not Pushed all the way on (very old ET) Would Spear Vehicle

Improper Installation - Extruder Head not Pushed all the way on

ET-PlusInstalling the Extruder Head

Top and Bottom Flanges on the side of the Extruder Head each has 3 holes – use the hole that best aligns with the holes in top and bottom of the HBA Post & Extruder Head parallel to the rail panels

Place a 3/8” washer on a 3/8” x 1 ½” Hex Head Bolt – Insert Bolt through Flange of Extruder Head and Flange of HBA Post

Place 3/8” Fender Washer Under 3/8” Nut on the end of the inserted Bolt

Tighten until snug

ET-PlusInstalling the Extruder Head

3 Holes in Extruder Head Flanges

Fender Washer

Properly Installed Extruder Head

Extruder Head should be Parallel to the Guardrail – Not dipping down like this

Extruder Head should be Parallel to the Guardrail –

Not dipping down like these

Energy Absorbing End TreatmentsSTRAIGHT FLARE / NOT CURVED

NO C

URVES

From the ET-PlusInstallation Checklist

Extruder Head is pushed on as far as it will go on the rail panel ensuring the panels fully engage with the feeder chute

The Extruder Channel is approximately parallel to finished grade

Cable Anchor Bracket is locked into place, by pulling the bracket toward Post 1 making sure the Hooks/Lugs are well seated into the Square Holes

From the ET-PlusInstallation Checklist

Shank portion of Cable Anchor positioned against bottom web of top portion HBA Post 1

Hex Nuts on ends of Anchor Cable are tightened taut (Cable deflects less than 1”)

Cable Bearing Plate Oriented such that 5” dimension is up

Properly Installed ET-Plus

SKT-SP Road Systems Sequential Kinking Terminal –

Standard Post

SKT-SP Road Systems http://roadsystems.com/pdf/fleat/SP-Installation-Manual.pdf

SKT-SP & FLEAT-SP

A very easy to follow“Assembly Instructions”With Drawings and Photos

Approved Shop Drawing SKT-SP 37’ 6” System

Except for 5 Differences the SKT-SP and the FLEAT-SP are

Identical Please note: To Avoid duplication

the Installation for the Type 1 SKT-SP is Covered with the Type 4A FLEAT-SP of this Training

5 Differences Type 1 SKT-SP

Type 4A FLEAT-SP 1. Flare

SKT-SP: 12” FLEAT-SP: 48” 2. Extrudes Guardrail

SKT-SP Away from Traffic FLEAT-SP Towards Traffic

3. Size of Impact Head & Feeder Chute SKT-SP Longer FLEAT-SP Shorter

5 Differences Type 1 SKT-27

Type 4A FLEAT-27 4. Cable Fed Inside/Outside Feeder

Chute SKT-SP Cable Fed thru Feeder Chute FLEAT-SP Cable Fed Outside Feeder

Chute 5. Bolt or No Bolt Connection to

Post 3 SKT-SP Guardrail IS Bolted to Post 3 FLEAT-SP Guardrail is NOT Bolted to

Post 3

Flare SKT-SP: 12” FLEAT-SP:

48”

FLEAT-SP48” FlareSKT-SP 12” Flare

Next to Roadway/Shoulder

Extrudes GuardrailSKT-SP Away from TrafficFLEAT-SP Towards Traffic

SKT-SP Away from Traffic FLEAT-SP Towards Traffic

Size of Impact Head and Feeder Chute

SKT-SP LongerFLEAT-SP Shorter

SKT-SP LongerImpact HeadFeeder Chute

FLEAT-SP ShorterImpact HeadFeeder Chute

Feeder Chute Ends

SRT-SP Cable feed inside/thru the Feeder Chute FLEAT-SP cable does NOT

The KYTC Pay Limits for the Type 1 End Treatment SKT-SP is 50’ even though the SKT-SP Shop Drawing says 12’ 6” for the

37’ 6” System

KYTC Type 1 Guardrail End treatment Pay Limits 50 FeetStandard Drawing RBR-020 Guardrail End Treatment Type 1

Road Systems SKT-SPPay Limits 12’ 6”

Manufactures Installation Info

SKT-SP Road Systems http://roadsystems.com/fleat.html http://roadsystems.com/pdf/fleat/SP-Installation-Manual.pdf 1-432-263-2435

ET-Plus Trinity Highway Products http://www.highwayguardrail.com/products/pdfs/ETPlus-Manual.pdf 1-800-282-7668 Elizabethtown KY

Both have a short Section on Repairs

ET-PLUS and SKT-SP Installation manuals

ET-PLUS SKT-SP & FLEAT-SP