Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
RE: RE: 2 Story 24

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Rick Crockett on September 16, 2000 18:31:59 UTC

I belive that could be some improvement. Just remember as you add weight to a structure, it gets weaker, especially it that weight is all load and no bearing. The sand will lower the frequency of vibrations and it should dampen them as well but it cannot bear its own weight and actually places a load upon the structure you want to stiffen. This load is not biased nor structural as would be the tie down rods I previousely mentioned. A crossed braced structure tied together just under the floor and a short steel pier bolted on top and going through but not touching floor might be best. Sort of like an electrical tower structure. Actually a well designed floor may work reasonably well in your case. A local college had a C-14 mounted on a portable tripod in a roof top observatory. The roof has a concrete surface and the observatory sits on top. If somebody jumped up and down you could see the image wiggle but for the most part it performed better than a poorly engineered pier.

If you put in the pier and find it doesn`t work you could then add the secondary structures, especially if you pre-plan and add tie points.

Good Luck,
-Rick

Follow Ups:

Login to Post
Additional Information
Google
 
Web www.astronomy.net
DayNightLine
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2020 John Huggins All Rights Reserved
Forum posts are Copyright their authors as specified in the heading above the post.
"dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
are trademarks of John Huggins