Nucorhighway.com Nucor Steel Marion, Inc. What makes us special? Simple System Line Posts Cable Hook...
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Transcript of Nucorhighway.com Nucor Steel Marion, Inc. What makes us special? Simple System Line Posts Cable Hook...
Nucor Steel Marion, Inc. nucorhighway.com
What makes us special?
Simple System
Line Posts Cable Hook Bolts Turnbuckles End treatment
Nucor Steel Marion, Inc. nucorhighway.com
Installation Procedure
Nucor Steel Marion, Inc. nucorhighway.com
Layout Run per Plans
Note grade, obstacles, slope
Slope maximum 6:1
Not within 1’ to 8’ center of median
Nucor Steel Marion, Inc. nucorhighway.com
Mark posts locations
5 SPACES @ 6’ - 6” = 32’ - 6” 3 SPACES @ 6’ - 3” = 18’ - 9”
51’ – 3”
3 CRP posts @ 6’-3”
6 End Terminal Posts @ 6’-6”
Line posts (refer to plans)
Nucor Steel Marion, Inc. nucorhighway.com
Mirror End Treatments
Nucor Steel Marion, Inc. nucorhighway.com
Mirror End Treatments
Nucor Steel Marion, Inc. nucorhighway.com
Nucor Steel Marion, Inc. nucorhighway.com
Nucor Steel Marion, Inc. nucorhighway.com
Drill footing holes
Nucor Steel Marion, Inc. nucorhighway.com
String line for line posts
Nucor Steel Marion, Inc. nucorhighway.com
Sockets: 4 step process
Nucor Steel Marion, Inc. nucorhighway.com
2 - #4 dowels
1 - #3 ring
Nucor Steel Marion, Inc. nucorhighway.com
Insert Socket
Use insertion tool
Set depth to string line
Note uneven terrain
Nucor Steel Marion, Inc. nucorhighway.com
Pour CRP Posts
Nucor Steel Marion, Inc. nucorhighway.com
Turnbuckles
Standard Cable = 1 x 750’ (229m)
Nucor Steel Marion, Inc. nucorhighway.com
Cable-ends and Turnbuckles
Slide casting onto cable
Separate tendons and insert wedge
Insert square nut into slot and screw in threaded rod
Nucor Steel Marion, Inc. nucorhighway.com
Nucor Steel Marion, Inc. nucorhighway.com
Turnbuckles
Like This!
NOT like this!
When turnbuckle interferes with post, leave off bolt
Best practice is NOT to install all three turnbuckles in same space
Nucor Steel Marion, Inc. nucorhighway.com
Laying Cable
Have cable reels and posts on trailer
Install cable ends at CRP and strip out cable
Drop posts off while moving
Tractor/Trailer makes one pass
Nucor Steel Marion, Inc. nucorhighway.com
Hanging Cable
Mark holes & hang hook bolt “open”
Lift cable, close hook bolts, nuts only require hand-tighten
Note – top, middle, bottom
Nucor Steel Marion, Inc. nucorhighway.com
Cable Heights
Median& Roadside
Top Middle Bottom
29.5” 25.5” 21.5”
750mm 650mm 545mm
Nucor Steel Marion, Inc. nucorhighway.com
Tensioning Cable
Ratchet Come-Along Hydraulic Cylinder Front End Loader Any other method Fine tune at
turnbuckles
Nucor Steel Marion, Inc. nucorhighway.com
Tensioning Cable
For very long runs, pull cable taut and clamp to post.
Place turnbuckles near upstream post.
NOT like this!
Nucor Steel Marion, Inc. nucorhighway.com
Tensioning Cable
Use cable pull and truck to apply initial tension
Plan to pull approx 1’ per 1000’ from taut to 6000 pounds tension.
Nucor Steel Marion, Inc. nucorhighway.com
Tensioning Cable
Check temp of cable
Use Temp Chart
Standard cable, add 15% to initial tension.
Nucor Steel Marion, Inc. nucorhighway.com
Delineation
Every 100’ or 6th post (16’-8”)
3M High Intensity Prismatic #3931 Reflective Sheeting
3M #94 Primer
Nucor Steel Marion, Inc. nucorhighway.com
Installed and Ready to Save Lives
Nucor Steel Marion, Inc. nucorhighway.com
WARNING! String line, consistent heights Offset, mirror CRP CRP concrete in center L-bracket positioning Cable order to CRPs Grease turnbuckles and end connectors Turnbuckles every 750’ or 1000’ 25 degrees rebar angle Wedge insertion Cable height and tolerances All hook bolts installed Check cable temperature Recheck tensioning
Nucor Steel Marion, Inc. nucorhighway.com
Product Support Engineering & Design Support Material Summaries for Runs Field Supervision Field Train of Installation Crews Installation Manual Specification Sheets Product Literature
Nucor Steel Marion, Inc. nucorhighway.com
Additional information, photos, videos, and
manuals available at
Nucorhighway.com
U.S. High-Tension Cable System
Nucor Steel Marion, Inc. nucorhighway.com
Questions ?
U.S. High-Tension Cable System