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Session 4 KY 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 - PowerPoint PPT Presentation
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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
Proper assembly with 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
Drive SYT Post at Post 2-8. Careful SYT Post and SP (Std
Post) look very similar – DO NOT INTERMIX
SYT Post have4 holes nearGround LineDO NOT INTERMIXSYT Post and SP Post
Center of the Yielding Holes in the Post is Approx. @
Finished Grade
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
Tighten AnchorCable – Using Vice Grips on Shank not on the Cable
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
Why use an anchor??? Third Post hit contained
vehicle
50
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 CURVES
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 Type 1 SKT-SP = 12”
Type 4A FLEAT-SP = 48”Type 4AFLEAT-SP48” Flare
Type 1 SKT-SP 12” FlareNext to Roadway/Shoulder
Extrudes GuardrailSKT-SP Away from TrafficFLEAT-SP Towards Traffic
Type 1SKT-SP Away from Traffic
Type 4AFLEAT-SP Towards Traffic
Size of Impact Head and Feeder Chute
Type 1 SKT-SP LongerType 4A FLEAT-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