The Brew Cabin

Posted: **Sun Feb 14, 2010 5:14 pm**

Hi all, I am designing a seating area for a college project, it has a wooden frame rear screen and glass side panels. The wooden frame is held off the floor possibly by galvanised steel feet, to anchor the whole seating area to the ground I thought about using stainless steel rod which passes up into the wooden frame through the feet and down into the ground about 500mm.

My questions are:

1: will simple threaded rod be enough to secure the panel, as they are simply straight rods into concrete?
2: Should the rods be bent to give added anchorage?
3: What sort of mix of concrete should I be using for this?

I would appreciate any advice even if its contradictory to what I have done. Thanks a million. Love the site

Posted: **Sun Feb 14, 2010 5:50 pm**

Finding it hard to visualise is the seat held up by the back panel only or does it have 4 points of contact. Maybe post a rough sketch if you have one handy.

Posted: **Sun Feb 14, 2010 6:04 pm**

They'd be L-shaped rods at the very simplest, to give resistance to pull-out.

More likely, they'd be tied-in to a reinforcement beam, but without knowing much, much ore about the design, it's impossible to say what form the beam might take.

As for the concrete, a buried foundation for a relatively lightweight structure would normally be 20 Newton concrete

Posted: **Wed Feb 17, 2010 6:00 pm**

I am unsure how to post an image, despite clicking image it doesn't seem to work so I am obviously doing something wrong

Posted: **Wed Feb 17, 2010 6:13 pm**

it sounds like you are overcomplicating this to me
lf there is an existing screed/oversite then get the installers to use 150mm resin anchors into this
if the seat has to take any great load then you need to speak to a structural engineer
but it sounds unnecessary to me
cheers LLL

The Brew Cabin

Foundation query - Seating area foundations required?