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N u c o r h i g h w a y.com Nucor Steel Marion, Inc. TL 3 System 4400 lb Pickup Truck 1800 lb Small Car Impacting at 62 mph 25 degrees.

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Presentation on theme: "N u c o r h i g h w a y.com Nucor Steel Marion, Inc. TL 3 System 4400 lb Pickup Truck 1800 lb Small Car Impacting at 62 mph 25 degrees."— Presentation transcript:

1 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. TL 3 System 4400 lb Pickup Truck 1800 lb Small Car Impacting at 62 mph 25 degrees

2 n u c o r h i g h w a y.com Nucor Steel Marion, Inc.

3 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. 18 wheelers? NOT TESTED

4 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. System Components Simple System Line Posts Cable Hook Bolts Turnbuckles End treatment

5 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Line Posts

6 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Turnbuckles Standard Cable = 1 x 750 (229m)

7 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. 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

8 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. End Treatment = = – 3 3 CRP End Terminal 6-6 Line posts (refer to plans)

9 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. CRP Posts

10 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Delineation 3M #94 Primer 3M High Intensity Prismatic #3931 Reflective Sheeting

11 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Maintenance of System

12 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Common Impacts – SIMPLE REPAIR

13 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. CRP Posts Line Post Repair

14 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Line Post Repair Make SURE: Cable on correct side Hook bolt nuts hand tightened Cable Heights TOP = 29.5 ±1 MIDDLE = 25.5 ±1 BOTTOM = /-2 Check and record tension

15 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Uncommon Impacts

16 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Releasing Tension 1.Loosen turnbuckle(s) 2.Cable grip and winch – pull towards accident 3.Ratchet come-along and 2 cable grips 4.Knock over CRPs 5.LAST CASE – CUT THE CABLE

17 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Quick De-tensioning

18 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. CRP Repair

19 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Re-tensioning – STANDARD CABLE Check Temperature Chart 15% higher 0 to 1.5 years After first major freeze After impact Tension tolerance is % or up to 2500 lbs. Check within first month after installation Periodically over the first year

20 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Checking Tension

21 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Additional information, photos, videos, and manuals available at nucorhighway.com U.S. High-Tension Cable System

22 n u c o r h i g h w a y.com Nucor Steel Marion, Inc. Questions ? U.S. High-Tension Cable System


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