Need a book? Engineering books recommendations...
patented steel tower bracing connections[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org
- Subject: patented steel tower bracing connections
- From: "Dave Evans" <DEVANS(--nospam--at)tnhanc.alaska.net>
- Date: Thu, 23 Oct 1997 17:33:57 -0900
- >received: from tnhanc.alaska.net by tnhanc.alaska.net (UUPC/extended 1.12p/sm2) with UUCP for seaoc(--nospam--at)seaoc.org; Thu, 23 Oct 1997 19:15:03 +0900
- Priority: normal
We recently inspected a self-supporting radio tower suffering from extensive corrosion damage. The diagonal braces were three to four inch diameter steel pipes, galvanized and painted. The pipe ends appeared to be (hot or cold) formed into cones about four inches long, pinched down to a diameter of 3/4 inch or so, with an ID of 3/8". Tear-drop shaped tabs were welded to each side of the cone, for a very compact single-bolt, double-shear connection to the leg knife plates. Apparently, the lower ends eventually plugged (insect debris?) , allowing water to accumulate, leading to severe corrosion and, in some cases, large holes in the braces. Interestingly, some of the holes are at the top end of the braces. I'm guessing that this end connection may be a patented design. Does anyone have any information about who the manufacturer/supplier may have been? Thanks, Dave Evans, P.E. TNH, Inc.
- Prev by Subject: RE: Outlook Express
- Next by Subject: Re: patented steel tower bracing connections
- Previous by thread: Steel Moment Frame Buildings and Strict Product Liability
- Next by thread: patented steel tower bracing connections -Reply