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Re: Reference for screwed connections in structural steel

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Manufacturers of tekscrews typically provide the shear strength and tensile strength of the screws. Also national standards define minimum strengths for such screws. The cold-formed steel structures code adjusts these values due to the problems of dealing with thin sheet materials: where by bearing on thin sheet, pull-out, and tilt-over are likely to control. For materials over 3mm thick, can typically refer back to the steel structures code.



On 6 December 2011 09:06, Harold Sprague <spraguehope(--nospam--at)hotmail.com> wrote:
Check out the NASA 1228
http://gltrs.grc.nasa.gov/reports/1990/RP-1228.pdf
It will not have the official blessing of the IFI, AISC or the RCSC, but it provides an engineering solution. 

Regards, Harold Sprague
 

Date: Mon, 5 Dec 2011 11:16:07 -0800
From: nma(--nospam--at)nma-se.com
To: seaint(--nospam--at)seaint.org
Subject: Re: Reference for screwed connections in structural steel


Look at the December issue of MSC magazine on page 9.  The topic is "Strength of a Tapped Hole".   We had this situation happened earlier this year and it became a problem of installing and tensioning a Gr 5 bolt into a less than A36 plate with limited thread length.

Neil Moore, PE, SE



On 12/4/2011 5:09 PM, Conrad Harrison wrote:
Seems similar to traditional type build-up of sections using rivets before welding available. Screws typically used with cold-formed steel, so resistances can be checked against cold-formed steel code.


Regards

Conrad Harrison
B.Tech (mfg & mech), MIIE, gradTIEAust
mailto:metamorphs96(--nospam--at)gmail.com
Adelaide
South Australia





--
Regards

Conrad Harrison
B.Tech (mfg & mech), MIIE, gradTIEAust
mailto:metamorphs96(--nospam--at)gmail.com
Adelaide
South Australia