There are surely more ways to splice a load-bearing beam (45x225)
Which are the strongest?
It is a visible load-bearing beam resting on posts.
Which are the strongest?
It is a visible load-bearing beam resting on posts.
Yes, I understand that...I was thinking more about what type of cut, or with an extra splice piece...Linnex said:
Byggaren said:Yes, there is. But the core question is: where in the field (between the supports) is the joint located? In other words, will the field moment be max over the joint, or will the joint be where the moment is zero? And what does the continuation look like on the beam in the next and next spans concerning the supports? In other words, is the beam continuously laid over several supports?
Crucial for the joint's design is whether it needs to take moments or not. Different joints can handle moments. Some cannot, but they can handle shear forces. Therefore, it is not possible to directly answer your question.
For example, you could overlap the beam over supports. Then the joint can handle both moments and shear forces.
You can overlap the beam without supports. Then the joint can handle minimal moments and no shear force.
You can butt joint the beam end to end with plates on both sides. This can handle lower or equal moments as the beam (the nail groups take the load and the shear force is crucial) and some shear force.
You can make an angled joint with a slope of 1:8 with or without a square to prevent slipping in the middle. It cannot handle moments and poorly handles shear force.
You can do the same with a plate attached. It handles slightly higher moments and shear force.
You can place a tension strut under the joint (which can be a butt joint or angled joint) that handles both (higher) moments than the beam and shear force.
And so forth.
Ok, a lot of technical jargon for a layman... all my joints are directly above a footing or pillar :-/
So, it's not as critical in that case? (relatively speaking)
The field moment I'll find in my electrical theory