In specifications for fabrication o 1

[krishna1975]

In specifications for fabrication of steel structures,I find one clause -" Bolted bracing length to be reduced by 1/1000 for draw", I did not understand this meaning.Kindly elaborate anybody ?

 

[BUGGAR]

What is this specification from? I remember from a long time ago about specifying shims to limit the amount of "draw" required in a face-plate bolted connection. Draw meaning the pull together in tension of the joint on the bolted member. Your spec seems to limit this pull-up on the brace to the brace length divided by 1000. What kind of connection is this? The note may have been applied without the appliers knowing what it meant.

 

[krishna1975]

dear buggar,
thanks for quick reply
actually its just a sentence typed in specifications of fabrications.
but you have given me a better insight into this.
Good job. If I come across anything further in this regards, I will share.
Thank again. Marry Christmas Brother.
Enjoy.

 

[PersonalProfile]

Apparently similar to that already offered by others, though I have seen an apparently similar requirement that was in theory to induce a "minimum preload" in members to control vibration/rattling etc.

I believe the source was:

http://steel.org.au/bookshop/australian-steel-detailers-handbook/

Apparently this is a double post:

http://www.eng-tips.com/viewthread.cfm?qid=400995

Regards,
Lyle