This is a multi-part message in MIME format.
--part0_889729093_boundary
Content-ID: <0_889729093@inet_out.mail.aol.com.1>
Content-type: text/plain; charset=US-ASCII
Here's the real skinny, folks.
--part0_889729093_boundary
Content-ID: <0_889729093@inet_out.mail.aol.com.2>
Content-type: message/rfc822
Content-transfer-encoding: 7bit
Content-disposition: inline
Return-Path: <bhorn@hornucopia.com>
Received: from relay13.mx.aol.com (relay13.mail.aol.com [172.31.109.13]) by
air17.mail.aol.com (v40.7) with SMTP; Thu, 12 Mar 1998 11:43:35 -0500
Received: from smtp02.primenet.com (smtp02.primenet.com [206.165.6.132])
by relay13.mx.aol.com (8.8.5/8.8.5/AOL-4.0.0)
with ESMTP id LAA23899 for <K7LXC@aol.com>;
Thu, 12 Mar 1998 11:43:32 -0500 (EST)
Received: (from daemon@localhost)
by smtp02.primenet.com (8.8.8/8.8.8) id JAA25023
for <K7LXC@aol.com>; Thu, 12 Mar 1998 09:43:31 -0700 (MST)
To: <towertalk@contesting.com>
Date: Thu, 12 Mar 1998 09:43:31 -0700 (MST)
Received: from ip-63-149.bur.primenet.com(207.218.63.149), claiming to be
"[192.168.0.4]"
via SMTP by smtp02.primenet.com, id smtpd024946; Thu Mar 12 09:43:20 1998
X-Sender: bhorn#netcom15.netcom.com@192.168.0.1
Message-Id: <v03007800b12d512195e5@[192.168.0.4]>
In-Reply-To: <92e55fef.35080213@aol.com>
To: K7LXC <K7LXC@aol.com>
From: Bruce Horn <bhorn@hornucopia.com>
Subject: Re: [TowerTalk] Elevated Guy Anchors
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
Hi Steve,
You wrote:
> IMO putting concrete in a pipe is superfluous and doesn't add any
>appreciable added strength to the pipe.. Say you have a column of concrete 4
>inches in diameter and it's 3 feet tall standing vertically. What happens
when
>you let go and the concrete column hits the ground? Right - it shatters.
>That's what it'll do if there's any compression when it's inside a pipe. It
>doesn't really do anything.
Looking briefly at the tables in the AISC Manual of Steel Construction, it
appears that concrete filled pipe is about 35% stronger than the same pipe
unfilled for axial loads.
73 de Bruce, WA7BNM (bhorn@hornucopia.com)
--part0_889729093_boundary--
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search
|