national association of steel pipe distributors 2010 annual convention february 26, 2010
TRANSCRIPT
National Association of Steel Pipe Distributors
2010 Annual ConventionFebruary 26, 2010
Loading Pipe on Rail
• Safety• Damage• Innovations • Problems• Solutions
Center Beam Cars – Alternative Loads
• Too Many Centerbeams, Building Industry down
• How to better utilize the asset
Challenges for Alternative Products
• Specially designed cars for building products• Load limit considerations• Damage to equipment and future loadings• Load/unload from two sides (tarps)• Centerbeam and height of same cables
TESTING
Railway Assn of Canada
Impact tested – structural steel, small diameter pipe, rebarField Testing – Limited amount account limited shipper interest
BNSF/AAR
VTU test procedures using pipe on Centerbeams
Based on AAR Testing Procedures, AAR Open Top Loading Rules Committee:
- Approved Rigid Pipe of 12”, 16” and 24” - Did not Approve Smaller diameter “flexible” pipe - Got the opportunity to see Cord Strap perform under dynamic testing
More to come.
Pipe Loads in Open TopsUsing Non-Metallic Strapping
• Ductile Pipe with Cord Strap
• Coated Pipe under test
DUCTILE PIPE PERFORMANCE All Shippers - BNSF
YEAR CommoditySetout
Incidence %
2002 CASTING 11.3
2003 CASTING 18.9
2004 CASTING 21.0
2005 CASTING 20.9
2006 CASTING 11.4
2007 CASTING 15.4
2008 CASTING 16.8
Ductile Pipe HISTORY – Band Failures
Examples of “Approved” Devices
Problem not resolved
So How do we solve this?
Answer: John Blackman
“Non-metallic strapping - Strength of steel with someElasticity.”
• Innovative J hook
• Polyester Strapping
• Doesn’t Crack/Break as easily
• Cost competitive
• Virtually eliminated Service Interruptions
• Safer to Use
CordStrap Performance
• Initially tested on over 100 loads – no strap breakage
• ACIPCO using since January 2009, less than 5 loads with broken straps
• ACIPCO Setout Incidence 1st qtr 2009 – 2%
• Steel band ductile pipe shippers – 12.3%
PIPE IN GONS
• Older Figures (pre-1960)• Allows 12-inches of end clearance• Standard Draft Gear Equipment• Setout incidence up to 16%• Impact Test to determine amount of load movement
Impact Test
Impact Test Conclusions
• Pipe moves more than 12 inches• Repeated impacts, even at low speed will produce shift over end of cars• Existing Figures need to be changed in-line with “reality”
Impact Test Conclusions
• A timeline has been established to incorporate changes to Figures
October 2010 is the target date
• AAR TAG is working on the problem
Thank You