How should I attach the glulam beam?

[EmilKBerg]

Hi!
I'm planning to demolish a load-bearing wall and instead have a glulam beam in the attic. How do you attach the rafters to the beam? I've seen different variations and here are two examples.
What are these different variations called and which one is actually best?
Thanks in advance😊

 

[MathiasS]

The first picture is from my attic. It's some sort of angle iron I've used. I took something that happened to be at home, but if you google "vinkeljärn" or "vinkelprofil," you'll find many options.

 

[optimizer]

Why attach to the rafters? The beam is well supported at the ends downward with posts to replace the wall's load-bearing. Possibly something to prevent the beam from twisting. What does the engineer say and what is stated in the drawings included in the building notification?

 

[egge80]

Why attach to the rafters? The beam is supposed to be supported at the ends downwards with posts to replace the wall's bearing. Possibly something to prevent the beam from twisting. What does the designer say, and what is stated in the drawing included in the building notification?

well, he wants to bind the underframes to the rafters, you mean if the beam supports from underneath BIG difference

 

[mexitegel]

Depending on the dimensions, you can use fork anchors or ridge fasteners.

I would probably have gone to the blacksmith and got some flat iron bent to go under the rafter and over the beam.

 

[optimizer]

Oh, so TS is wondering how to hang the joist that is under the beam into the actual beam. Now I get it. I think the option with threaded rods seems clearly the most sensible. But again, this should be indicated in the drawing.

 

[myrstack]

The second option is a threaded rod with base plates that are either manufactured or purchased ready-made. If you have a normally framed ceiling, the bolts and stub ends that protrude won't be a problem, but if you've already maximized the ceiling height, these likely extend 3cm downwards. The advantage for me is that you can really tighten the truss against its beam

https://butik.stockholmtrailer.se/b...d-batvagn/produkt/fastplatta-bredd-80-100-mm/

 

[witten]

In the lower picture, what is stabilizing the top of the beam? It's a very tall beam with a risk of instability.

 

[Plupp 405730]

Hey!
I am going to demolish a load-bearing wall and instead have a glulam beam in the attic. How do you attach the roof trusses to the beam? I've seen different variants and here are two examples.
What are the different variants called and which is really the best?
Thanks in advance😊

The one with the threaded rods is probably strong, but the question is if you need it to be that strong..
I would have gone with fork anchors and anchor screws...

 

[optimizer]

Is the joist under the beam spliced over the heart wall that is to be removed? Then I don't believe in forks. How wide is the joist that is to be lifted? What is the length of the glulam beam?

 

[Liljeros]

I interpret it as intended to be a DIY solution, but I would say that this is something one should still bring in a structural engineer for. They will then prescribe the attachment method; it should also be reported if you plan to demolish the load-bearing wall. Otherwise, there is a risk of problems when selling the house in the future.