Hello,
I'm working on a new construction project and have a problem with the slightly longer span for the floor structure between the ground floor and the upper floor (the image is of the ground floor of a 2-story house, showing the living room and parts of the surrounding rooms). The contractor wants to use "standard" construction timber, so Kerto beams or similar are not an option. The contractor is also not keen on embedding any beam, so the beams will be visible.
How could this be solved and what alternatives are there? I have included two proposals but I'm not sure if those solutions meet the required standards. There is also a bathroom on the upper floor, so there absolutely cannot be any risk of underdimensioning the floor structure.
I would appreciate any good ideas, and as an option (depending on the solution), I would also like to hear how it could work with a steel beam (if it is visible) as support, i.e., dimension and type. If the steel beam were to be embedded, what would that look like?
Thanks in advance.
Sunemangs
I'm working on a new construction project and have a problem with the slightly longer span for the floor structure between the ground floor and the upper floor (the image is of the ground floor of a 2-story house, showing the living room and parts of the surrounding rooms). The contractor wants to use "standard" construction timber, so Kerto beams or similar are not an option. The contractor is also not keen on embedding any beam, so the beams will be visible.
How could this be solved and what alternatives are there? I have included two proposals but I'm not sure if those solutions meet the required standards. There is also a bathroom on the upper floor, so there absolutely cannot be any risk of underdimensioning the floor structure.
I would appreciate any good ideas, and as an option (depending on the solution), I would also like to hear how it could work with a steel beam (if it is visible) as support, i.e., dimension and type. If the steel beam were to be embedded, what would that look like?
Thanks in advance.
Sunemangs
With that span, I would probably consider choosing a steel beam for the purpose. It keeps the size of the beam down, and if it is visible, you can just cover it with the desired material. Whether the contractor is eager or not is irrelevant. The construction should work, and if the contractor finds it difficult, it's their problem, not yours.
Hello daije and thank you for your reply.
If I could now get the contractor to use a steel beam, the question remains what construction and dimension. I included two suggestions; would either of these be a possibility? Is option number two even a possibility? What dimension and type of beam would be necessary? More detailed information would be super great to have
sunemangs
If I could now get the contractor to use a steel beam, the question remains what construction and dimension. I included two suggestions; would either of these be a possibility? Is option number two even a possibility? What dimension and type of beam would be necessary? More detailed information would be super great to have
sunemangs
Kertubalkar would solve your problems, play a little with http://www.iat.inadire.se/WebLagerbalk/Lagerbalk.aspx
Then you'll get an idea about dimensions.
As for whether a steel beam or glulam beam would be better as a support, I don't know, but I think wood is preferable from a fire safety perspective since steel can deform earlier during a fire.
Why doesn't the contractor want to consider alternatives?
Then you'll get an idea about dimensions.
As for whether a steel beam or glulam beam would be better as a support, I don't know, but I think wood is preferable from a fire safety perspective since steel can deform earlier during a fire.
Why doesn't the contractor want to consider alternatives?
This is how we did it in case it can be of any help; the floor joist was cut in the middle and rests on the lower flange of a steel beam (HEA 180), the joists are held together at the bottom with perforated band (I later saw there are ready-made brackets, I think they're called joist hangers). On top, there is a 45 nailed on the side as support for the floor. The steel beam rests on the outer walls and two partition walls, so it goes along the entire house in the intermediate floor. We have about 6.50 m span on the floor and about 5.50 m in length in the largest room.
This way, you avoid having any visible beams or columns in the rooms. I've received approval from a structural engineer for this, but it's probably best to check yourself, especially if you have wet rooms with tiles on the upper floor.
This way, you avoid having any visible beams or columns in the rooms. I've received approval from a structural engineer for this, but it's probably best to check yourself, especially if you have wet rooms with tiles on the upper floor.
Hello Nybbygarn,
Thank you for your post. Does this mean you have a 5.5-meter-long staalbalk without support legs except on the sides? For my part, I would need to go up to a 6.5-meter-long balk without support legs according to option two, I wonder if it works?
Thank you for your post. Does this mean you have a 5.5-meter-long staalbalk without support legs except on the sides? For my part, I would need to go up to a 6.5-meter-long balk without support legs according to option two, I wonder if it works?
I put up a beam in the attic; I have 8 meters, then there are 3 pillars going down through the 2nd floor, where the floor of the 2nd floor hangs in. The pillars will then end up inside an inner wall. These will be hefty constructions... 2 pieces of 95x650
Yep, I have 5.5 meters between the supports without any side legs but the beam rests on more supports which helps (the person who helped me calculate the beam was very particular that it should not be cut). If you're only going to support it on the outer ends, you might have to increase the size, but check with a designer, this is simple for them, and if you're going to have 220 joists, you can easily have a 220 beam.