Cable or Wire Rope, Minimum Tensile Strength 2

• Jul 11, 2006

1
• #2

JStephen

Mechanical

Aug 25, 2004

8,736

US

I would think you'd either need to test it or locate drawings and mill test reports for the job. You can buy wire rope in different grades, and I would assume that a suspension bridge built 30 years ago could very easily be something beside the standard grades.

 

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• Jul 11, 2006

1
• #3

oldrunner

Structural

May 11, 2001

473

US

Cable is never A36. You will really need to identify the particular type. 6x7 and 6x19 IWRC rope, 1" dia. has a breaking strength of 45.7 tons while galvanized bridge strand has a BS of 46.0 tons. The modulus of elasticity can vary from 13E6 to 21E6.

Refer to the Wire Rope Engineering Handbook published by USS United States Steel. There's also more to the design, such a cable anchorage, sheave diameter etc. Also, factor of saftys vary with the use.

The standard grades that I quoted from the manual was re-published in 1968.

 

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• Jul 11, 2006

• #4

KCRatnayake

Structural

Apr 29, 2006

89

LK

Dear Oldrunner,
You have the link to the Wire Rope Engineering Handbook?

Regards
Clefcon

 

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• Jul 12, 2006

• Thread starter
• #5

Tajudeen

Civil/Environmental

Jul 22, 2003

6

US

Thanks JStephen, Oldrunner and Clefcon for your excellent input. I went into the Sliderule Era website and obtained the Wire Rope Engineering Handbook. Again thanks.

 

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