Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_dslr_mirrorlesss_winners.thumb.jpg.9deb4a8db27e7485a7bb99d98667c94e.jpg

fifeskies

Pillar for mounting a metal pier

Recommended Posts

l have an area of raised deck in my garden that has good sky views.

I plan to install an Altair Astro metal pier on the deck for convenient use. 

(the pier will be permanent and have a cover over it, perhaps even evolving to a full mini observatory with a roll off enclosure)

 

I will not be mounting direct to the deck as there will be vibrations as I (and others) move around. As I can get under the deck I will cut a hole in the deck for the pier and create an mounting pillar under the deck so the pier is isolated from vibrations.

The ground below is solid (bedrock) so I am wondering how wide the pillar should be. The pier is 300 wide so I need at least that diameter for the fixing bolts.

The pillar will be around 2.1 metres high and probably a concrete mix into a mould ,I will drill long rawlbolt anchors into the bedrock to secure the column at the base and will use rebar in the actual column to reinforce it. I don't want to build anything too huge as I expect a solid column will be largely vibration free , but it is a high column so it needs to be wide enough not to suffer vibrations.

I was thinking I could use some kind of large diameter drain pipe (agricultural type) as a mould.

 

Has anyone done anything similar , or has ideas as to how big the pillar needs to be.

 

I have a photo from elsewhere showing the pier used by another astronomer on a deck.

I hope to do as tidy a job , but need a high column under the deck to the ground far below.

 

Deck_mount.jpg

 

I am thinking of some of the kind of pipe shown below for a mould , If I can source an offcut from local agricultural suppliers.

It is available in many sizes up to 600mm diameter, though I was thinking something around 300 or 400mm may do.

Either that or make a plywood mould for the pour and have it flared wider at the base.

The column wont be on view , hidden below the deck , so it doesn't need to be terribly aesthetic , merely functional

 

 

Twinwall_pipes.jpg

Edited by fifeskies

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.