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...
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Nucor Steel Marion, Inc. n u c o r h i g h w a y .com TL 3 System 4400 lb Pickup Truck 1800 lb Small Car Impacting at 62 mph 25 degrees
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Transcript of 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...
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
TL 3 System4400 lb Pickup Truck
1800 lb Small Car
Impacting at 62 mph
25 degrees
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
18 wheelers? NOT TESTED
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
System Components
Simple System
Line Posts Cable Hook Bolts Turnbuckles End treatment
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Line Posts
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Turnbuckles
Standard Cable = 1 x 750’ (229m)
Nucor Steel Marion, Inc. n u c o r h i g h w a y .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. n u c o r h i g h w a y .com
End Treatment
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. n u c o r h i g h w a y .com
CRP Posts
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Delineation
3M #94 Primer
3M High Intensity Prismatic #3931 Reflective Sheeting
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Maintenance of System
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Common Impacts – SIMPLE REPAIR
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
CRP Posts
Line PostRepair
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Line Post RepairMake SURE:
Cable on correct side
Hook bolt nuts hand tightened
Cable Heights TOP = 29.5” ±1”
MIDDLE = 25.5” ±1”
BOTTOM = 21.5” +0”/-2”
Check and record tension
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Uncommon Impacts
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Releasing Tension
1. Loosen turnbuckle(s)2. Cable grip and winch – pull towards
accident3. Ratchet come-along and 2 cable
grips4. Knock over CRPs5. LAST CASE – CUT THE CABLE
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
QuickDe-tensioning
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
CRP Repair
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Re-tensioning – STANDARD CABLE
Check Temperature Chart 15% higher
0 to 1.5 years After first major freeze After impact
Tension tolerance is +15-20% or up to 2500 lbs.
Check within first month after installation Periodically over the first year
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
CheckingTension
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Additional information, photos, videos, and
manuals available at
nucorhighway.com
U.S. High-Tension Cable System
Nucor Steel Marion, Inc. n u c o r h i g h w a y .com
Questions ?
U.S. High-Tension Cable System
