Hello, I am wondering if someone can provide guidance on the load-bearing capacity of a tie beam for a carport. The dimensions will be 3.6 wide and 6m long with a pent roof. On one side, it works with 4 posts in total, but on the other side, I would like to have 3 posts, thus making it wider between the footing. So how far can the tie beam extend past the last post to be able to bear the load?
I have tested the wood guide's template and got 45x195, but that is with posts at the outer edges. Snow zone 2 - Alingsås 5-degree angle on the roof Roofing felt with sedum
Hope someone can help.
I have tested the wood guide's template and got 45x195, but that is with posts at the outer edges. Snow zone 2 - Alingsås 5-degree angle on the roof Roofing felt with sedum
Hope someone can help.
I suspect that 45x195 C 24 is too weak for that task. I would choose laminated timber. You can also get beams that are 6 meters long.
If you calculate with 2 kN/sqm for the weight of the green roof, I arrive at a line load on the edge beams (a more relevant term, I think) of 7.2 kN/m. Then the maximum suitable span (distance between the posts) would be 1.8 m.
If you calculate with 2 kN/sqm for the weight of the green roof, I arrive at a line load on the edge beams (a more relevant term, I think) of 7.2 kN/m. Then the maximum suitable span (distance between the posts) would be 1.8 m.
If you screw glue (PU glue or similar) a standing 45x220 with a lying 45x120 symmetrically, you get an extremely stiff construction. It corresponds to a stud that is 45x307 mm. It can handle a distance between posts of 2.8 meters.
The posts are glued 2 pieces of 45x120mm with PU glue and screwed with 80mm screws cc300mm
So nice to hear that it's possible to have the outer 3rd post further in than I had considered.
Or have I misunderstood this
will get back with a sketch
So nice to hear that it's possible to have the outer 3rd post further in than I had considered.
Or have I misunderstood this
will get back with a sketch
It depends a bit on the distance you have between the rafters. If the c/c distance is 1200 mm, you can go up to an overhang of 1200 mm without any problem. However, there are reasons to be cautious. Even if it holds, it might not look good over time.
What size were you thinking for the extrusion?
Size?J justusandersson said:
The same as the top plate or do you mean length beyond the post?
This is exactly what I would like help with.
So how many xxxx mm can the top plate extend beyond the 3rd post.
If 45x220 can support for example 1500mm??
It's not just a matter of building statics but also a stability issue. A corner in the air on an outdoor structure where a ledge beam meets a roof beam may over time decide to take its own path. Additionally, post constructions like a carport are not stable without wall sections or different kinds of diagonals. Therefore, I suggest that you show a picture of how you envision the construction in its entirety.