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Re: split washer seismic performance

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Posted by BJH (64.45.143.248) on December 31, 2002 at 08:24:53:

In Reply to: split washer seismic performance posted by brad on December 23, 2002 at 19:13:27:

: is there any information of the behavior of split (lock) washers in seismic zone 4. I am working with a constant tension application using machine screws treaded into structural steel.

Brad,
I am not familiar with the "seismic zone 4" requirements, however I would have to assume that it deals with vibration. I have done some research and some experimentation with regards to the use split-locks. Many do not recommend these for use on new designs. They recommend other types of washers or lock-nuts or serrated head screws and such.
Please review the Bolt Science link and the article regarding vibration loosening.
www.boltscience.com and www.boltscience.com/pages/vibloose.htm

I hope this info is helpful. Good luck.
BJH

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Subject: Re: Re: split washer seismic performance

Comments:
: : is there any information of the behavior of split (lock) washers in seismic zone 4. I am working with a constant tension application using machine screws treaded into structural steel. : Brad, : I am not familiar with the "seismic zone 4" requirements, however I would have to assume that it deals with vibration. I have done some research and some experimentation with regards to the use split-locks. Many do not recommend these for use on new designs. They recommend other types of washers or lock-nuts or serrated head screws and such. : Please review the Bolt Science link and the article regarding vibration loosening. : www.boltscience.com and www.boltscience.com/pages/vibloose.htm : I hope this info is helpful. Good luck. : BJH

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