Framing and Sub-Flooring - Attaching an I-beam to a wall

Hi all,

I hope that this is the right forum for my question. I've never worked with I-beams before, so I am unfamiliar with fittings/hardware that's available for them. I've been googling but with no success. I'm asking here because I figured people who know about framing would know about I-beams.

I'm considering using a small I-beam for a DIY project: I'd like to build a pullup bar that attaches to studs in a wall, and sticks out of the wall about 3'.

Here's a picture of what I have in mind:

http://www.antunkarlovac.com/stuff/pullup.jpg

What I'm trying to find out is:


Is there any kind of flange fitting that would allow me to attach an I-beam to a wooden board in a perpendicular manner as shown? If so, what's it called? (The purpose of the wooden board would be to distribute the force against the wall).
If there isn't such a fitting, is there another way of attaching the beam?
Would a small (say 3") I-beam ~ 3' long be able to take the stress of a person doing pullups at one end? (I assume so, since I've seen commercial pullup bars of a similar design).
Any ideas on how I'd go about attaching a steel bar between the two I-beams?


Thanks for any tips!

-Antun

I beams are overkill for a chinning bar.

What's going support the weight at the end where you are doing the exercise? Supports are needed from the floor up, on both ends, if you were to do it that way.

I used to put the bar between a door frame. If you don't want it in a door frame, I would use 4x4s against the wall or a few inches away, where you show the wood. Brace them to the wall & hang the bar between them.