Hello!
I would like to get help from someone knowledgeable regarding an assessment of HEB beam 160 mm. Unfortunately, I do not get any answers from the suppliers about what loads the beams can withstand.
Today, I have an extension from the main building with a flat roof. Currently, the flat roof is supported by 170 mm roof joists with a span of 4700 mm, which is a very weak construction.
I am attaching a dimensioning calculation that is made with accurate measurements.
We have low ceiling height and would therefore like to use a steel beam.
On top of the pent roof, we want to build a terrace with decking and railing, where I estimate the distributed load to be 70 kg/m2 (1750 kg).
The span of the beam will be 5300 mm and rests on two posts mounted in the wall. There, I will cut the existing roof beams (2350 mm) and attach them to the beam.
Will a HEB 160 mm beam handle the loads and what will the deflection be?
Gratefully accepting help
Regards,
Christian
I would like to get help from someone knowledgeable regarding an assessment of HEB beam 160 mm. Unfortunately, I do not get any answers from the suppliers about what loads the beams can withstand.
Today, I have an extension from the main building with a flat roof. Currently, the flat roof is supported by 170 mm roof joists with a span of 4700 mm, which is a very weak construction.
I am attaching a dimensioning calculation that is made with accurate measurements.
We have low ceiling height and would therefore like to use a steel beam.
On top of the pent roof, we want to build a terrace with decking and railing, where I estimate the distributed load to be 70 kg/m2 (1750 kg).
The span of the beam will be 5300 mm and rests on two posts mounted in the wall. There, I will cut the existing roof beams (2350 mm) and attach them to the beam.
Will a HEB 160 mm beam handle the loads and what will the deflection be?
Gratefully accepting help
Regards,
Christian
When it becomes a patio/balcony, the norm says that one should also consider a live load of 3.5 kN/m2 (approx. 350 kg/m2) in addition to the dead weight of the building materials you mentioned in your post. I can take a quick look on Monday when I am at work, but I suspect that deflection might be a problem with that span and that dimension of the steel beam.
Hello! Yes, I'm aware that I will have difficulty meeting the building standard. The idea is that the family of four will be on the balcony a few times during the summer. I think that the snow load calculation offsets our family in the summer. Previously, there was a balcony that was used with the current inadequate roof joists. The idea is to find a solution that can work and is much better than the current one. Best regards, ChristianAron Roger said: