If I was to build a house 88 feet x 54 feet with a full size basment. Would there be away to support the house without having support beams going down the middel of the house? I would like to put a small theater in the basement, but the support beams would mess up the atmosphere. Here is the site with the house I want and all the info on it, http://details.coolhouseplans.com/details.html ?pid=chp-30174&FoundID=64&sid=chp23
You need to pay a structural engineer for a proper answer.
For a non-proper answer (ie; don't go and try 'cos I said!) it might be possible, but unlikely (and expensive). You'll need to use some very deep steel beams running transversely across the house. Even then, it's possible that you won't be able to get them stiff enough within the space available, so the upper floors will sag towards the centre of the house under the weight of the furnishings and interior fit out.
you need a structural engineer to do the business. really you do!! I'm doing civil engineering and common sense says to me that you're going to need columns or a wall running at least down the middle to cut the span in half if not into three. as well as this you would have to use some big steel i beams instead of some pretty timber. you won't get a bit of timber much bigger than 6m long at best thats 18ft.
as in the first post imagine the sag of the wall above.