We are planning to reuse parts of our carport and build a deck instead. I wonder if you can help me with the structural integrity of the construction.
The plan is to attach a support beam to the concrete floor in the main body of the house and use the IPE beam that's already there.
See the image below. According to the building permit application that the owner submitted during the construction of the carport, the structure is as follows.
Columns RHS 100x100 attached to concrete posts 0.9 meters deep. IPE 240 beam at the front.
It is about 7 meters wide, and 3 meters from the main body of the house.
In the picture, you can see the structure. So what I'm wondering is if it's okay to use the columns and beam and if it will hold for a deck?
Yes, that is correct. We live in Älmhult, Småland.
The steel holds provided that you brace the beam against tipping. IPE beams buckle easily under high loads, and in this case, instability failure becomes dimensioning. You haven't specified the thickness of the columns, but when I calculate with a 4mm material thickness, the utilization rate is very low.
Even if the steel would hold, it will become a very shaky construction mainly due to the beam's long span. This is easiest solved with a new pillar in the middle. Then the terrace floor must function somewhat like a stiff board since the construction is currently too weak laterally to just lay a deck on it.
@kayen85 I'll make the thickness around 10mm, see attached images. Is there anything else I should measure with?
@bossespecial I can't/won't have a pillar in the middle, it would take away the function of a Carport for us? Can it be reinforced like in my nice picture/explanation? Would that help?
Placing small diagonals in the corners with such a long span is not suitable, mainly because very large restraining forces arise which can be difficult to manage. Also, I am doubtful whether the small diagonals have any significant effect in this particular context.
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