1 / 31

What makes us special?

What makes us special?. Simple System Line Posts Cable Hook Bolts Turnbuckles End treatment. Installation Procedure. Layout Run per Plans. Note grade, obstacles, slope Slope maximum 6:1 Not within 1’ to 8’ center of median. 51’ – 3”. 5 SPACES @ 6’ - 6” = 32’ - 6”.

neylan
Download Presentation

What makes us special?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. What makes us special? • Simple System • Line Posts • Cable • Hook Bolts • Turnbuckles • End treatment

  2. Installation Procedure

  3. Layout Run per Plans • Note grade, obstacles, slope • Slope maximum 6:1 • Not within 1’ to 8’ center of median

  4. 51’ – 3” 5 SPACES @ 6’ - 6” = 32’ - 6” 3 SPACES @ 6’ - 3” = 18’ - 9” Mark posts locations • 3 CRP posts @ 6’-3” • 6 End Terminal Posts @ 6’-6” • Line posts (refer to plans)

  5. Mirror End Treatments

  6. Mirror End Treatments

  7. Drill footing holes

  8. String line for line posts

  9. Sockets: 4 step process

  10. 2 - #4 dowels 1 - #3 ring

  11. Insert Socket • Use insertion tool • Set depth to string line • Note uneven terrain

  12. Pour CRP Posts

  13. Turnbuckles • Standard Cable = 1 x 750’ (229m)

  14. Cable-ends and Turnbuckles • Slide casting onto cable • Separate tendons and insert wedge • Insert square nut into slot and screw in threaded rod

  15. Turnbuckles • When turnbuckle interferes with post, leave off bolt • Best practice is NOT to install all three turnbuckles in same space NOT like this! Like This!

  16. 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

  17. Hanging Cable • Mark holes & hang hook bolt “open” • Lift cable, close hook bolts, nuts only require hand-tighten • Note – top, middle, bottom

  18. Cable Heights

  19. Tensioning Cable • Ratchet Come-Along • Hydraulic Cylinder • Front End Loader • Any other method • Fine tune at turnbuckles

  20. Tensioning Cable • For very long runs, pull cable taut and clamp to post. • Place turnbuckles near upstream post. NOT like this!

  21. Tensioning Cable • Use cable pull and truck to apply initial tension • Plan to pull approx 1’ per 1000’ from taut to 6000 pounds tension.

  22. Tensioning Cable • Check temp of cable • Use Temp Chart • Standard cable, add 15% to initial tension.

  23. Delineation • Every 100’ or 6th post (16’-8”) • 3M High Intensity Prismatic #3931 Reflective Sheeting • 3M #94 Primer

  24. Installed and Ready to Save Lives

  25. 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

  26. Product Support • Engineering & Design Support • Material Summaries for Runs • Field Supervision • Field Train of Installation Crews • Installation Manual • Specification Sheets • Product Literature

  27. U.S. High-Tension Cable System Additional information, photos, videos, and manuals available at Nucorhighway.com

  28. U.S. High-Tension Cable System Questions ?

More Related