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Re: turn of the nut[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: turn of the nut
- From: "Robert Kazanjy" <rkazanjy(--nospam--at)gmail.com>
- Date: Thu, 14 Jun 2007 11:03:00 -0700
Have not used the software but I'll give a look
The whole bolt / screw tightening has give me trouble throughout my career; dry / lubed, K factor,bolt / nut material & finish, etc such a large range. Is it tight enough? Have I over stressed the fastener? (esp a problem with small mechanical fasteners)
I actually did some torque testing of bolt / nut sets using hollow load cells to convince myself that I WAS getting decent tension & not over stress the bolts. But it's still a pretty crude practice.
I got really spoiled when I got to tension Dywidags directly, cuz there's no tensioning them by "turn of the nut" :)
Has anyone used any of the software available from Boltscience? I have been playing with a few of the demos this morning. I am quite impressed and am interested in the opinions of any other users. The demos are downloadable directly from the website: http://www.boltscience.com/pages/download.htm
Michel Blangy, P.E.-----Original Message-----Rainer-
From: Robert Kazanjy [mailto:rkazanjy(--nospam--at)gmail.com]
Sent: Wednesday, June 13, 2007 4:59 PM
Subject: Re: turn of the nut
Here's a link to a pretty good treatment of bolt tightening
On 6/13/07, raincat1(--nospam--at)aol.com < raincat1(--nospam--at)aol.com> wrote:Say I have a tapped hole, and I need full pre-tension on the bolt. How do I apply the "turn of the nut" method? How do I test representative samples as required by AISC? In this connection - I don't have a nut!
Rainier C. Catubig
San Diego, California
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