Replace VKR 90x90 with wood?

[sponken]

Hello

Maybe not the easiest question to answer but I'll throw it out there anyway.

I have an extension underway and according to the construction drawing, the roof will be supported by a steel beam.
This beam will in turn rest on two VKR columns 90x90 with 5mm thickness.

Would it be possible to replace the standing columns with wood? It would significantly ease the construction process.

Does anyone have input on this?


/T

 

[Rabbithole]

A drawing measuring 90x90x5 sounds very rough for a house

 

[Lulaua]

Probably going with glulam pillars, but more input is needed to answer, like what loads will come down on the beam.

 

[sponken]

Here's a picture.

 

[sponken]

Here comes an image depicting the facade from the front and the side.

 

[justusandersson]

VKR 90x90 5 mm material corresponds quite precisely to a glulam column that is 140x140 mm. One that is 2.5 m high can handle a centric load of just over 200 kN, i.e., 20 tons, which is hardly the case. I guess the dimension of the VKR columns is chosen from an aesthetic point of view. I would replace them with 90x90 glulam, which admittedly can "only" handle 50 kN at 2.5 m height, but which must still be sufficient.

 

[witten]

Quick mental calculation suggests that it is no more than 40 kN, so Justus's suggestion works. There are also tables on träguiden for 3 nailed together beams if I remember correctly.

 

[sponken]

Super thanks for the answers!

I also suspect that the choice of VKR is for aesthetic reasons, but for me, it is easier to attach a glued laminated timber column to the existing construction.

Thanks