Cable Stayed Bridge Standards 1

[aspick]

I anticipate to soon begin a project on a small cable stayed footbridge.

Does anyone know of a standard for cables or strand in cable stayed bridge applications? Or perhaps a more general standard or reference literature that would contain information on safety factors for cable?

Thanks so much.

 

[Lutfi]

Try Mark Ketchum's web site or at least ask him. He is a great bridge designer and I have lots of respect for his expertise. His web site is

http://www.ketchum.org/

Good luck.

 

[JAE]

The American Iron and Steel Institute published book called "Manual for Structural Applications of Steel Cables for Buildings" in 1973. I don't know if they ever updated it or abandoned it. It was somewhat helpful.

You might try their website:

http://www.steel.org

 

[JAE]

You might also try DSI:

http://www.dywidag-systems.com

 

[radair]

Communication tower manufacturers such as PiROD and ROHN list breaking strengths of EHS and Bridge Strand cables in their catalogs. I don't know about bridge applications, but in telecommunications the EIA/TIA standard requires a factor of safety of 2.0 for guys and components.

 

[Rich2001]

Here is some information from the Federal Highway Administration.

http://www.fhwa.dot.gov/legsregs/directives/techadvs/t514025.htm

 

[bridgebuster]

I worked on the design of a short span cable-stayed bridge four years ago. Bethlehem Steel/Williamsport Wirerope Works provided us with catalogs for strand, rope, and socket details. (I assume they're still in business). They're in Williamsport PA; 570-326-5146.

Also, you need to consider corrosion protection. If you're going to have exposed strands you'll need to select from Class A, B, or C galvanizing. And remember to find out about the lead time for strand fabrication and galvanizing.