Calculation Glulam Beam

[freddap123]

Hello,
I have some questions about demolishing a load-bearing interior wall.
There are 4 roof trusses currently resting on a wooden beam measuring 100x100mm.

When I used Setra and Moelven's dimensioning programs, I found that I need a glulam beam with dimensions 90x405, 140x315, or 115x360.
The problem is that I would prefer not to have such high glulam beams as it restricts ceiling height.
Could I instead install 2 glulam beams next to each other with dimensions 90x270 and 90x180 to achieve the same strength?
I was also considering placing an additional glulam beam of 90x180 in the middle of the roof trusses.

I am not an expert in this and I don't want the roof to collapse.

Thank you in advance..

/Fredrik

 

[andersmc]

If the roof collapses, I can't say, but without calculating it, I can say that your two beams in width do NOT correspond to any of the other options.

 

[Mikael_L]

Look at the steel beam.
HEA, HEB and then there is probably an even better profile.

You could probably roughly halve the beam height, compared to glulam.

 

[Enk Projektet]

Look at steel beam. HEA, HEB and then there is probably an even better profile.

Guessingly, you can roughly halve the beam height compared to glulam.

Absolutely and probably the price too...

 

[PCLarsson]

Don't you have the possibility to put it in the attic?