Beam to support basement wall?

[Vermilion]

I have a long basement wall, just over 8m long, entirely underground. Right now, I have a partition wall there that most likely provides support to the outer wall so it doesn't collapse. Many say there's most likely no risk in removing the wall, but I thought I'd be on the safe side and install a beam between the floor and ceiling.

Now the question is what dimensions this wooden beam should have. Can you, for example, build it from 3 studs of the same thickness as the ceiling is built from? Kind of like how you build a carport, or does it have to be a glulam beam?

 

[justusandersson]

What is the material in the basement wall? The most logical thing is to stabilize it at the top along its length. Alternatively, place a beam in the ceiling across the basement. However, the execution of the basement wall determines whether it needs to be stabilized at all.

 

[Vermilion]

What is the material of the basement wall? The most logical thing is to stabilize it at the top along its length. Alternatively, place a beam across the ceiling of the basement. However, the construction of the basement wall determines if it needs to be stabilized at all.

Concrete perforated bricks, I think they're called. I was thinking of just putting a beam from top to bottom KIND OF like the current partition wall is.

 

[justusandersson]

If there is a concrete arch between the basement and the ground floor (which I suspect since the basement wall is built with concrete hollow blocks), you don't need to consider supporting the wall.