Re: Reference for screwed connections in structural steel

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@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
 

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Date: Mon, 5 Dec 2011 11:16:07 -0800
From: nma@nma-se.com
To: seaint@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@gmail.com
Adelaide
South Australia

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Regards

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