Replace parts of posts on carport

[Markus8558]

Hello!

It's like this, our carport at home needs a little love and care. And what better time for that now that summer is soon approaching

The posts that go from the roof down to the ground seem to be built from three beams consisting of 2 pieces 170*45 and 1 piece 45*70. The latter is the middle part of the post, with the other two nailed on either side of it. It's the larger beams that need to be replaced because the ends that meet the concrete base at the bottom are starting to get quite "rotten" (see picture). My question, friends, is how load-bearing do you think these "outer parts" are? I assume they can't be very load-bearing considering what the ends look like on the post I sent a picture of. I'm not a carpenter and I like to do things myself, but with some caution ;-)

Do you think one can replace them without the help of a jack and such? The beams are nailed with quite thick nails, so it might be that they are nailed to each other from either side. I hope I've been clear enough in my question. I've attached three pictures so you can see a bit of how it looks. Let me know if you need more information!

/Markus

 

[holmberg87]

Those just hold the upper beam in place so it should be easy to replace one at a time.
But if your middle one is only a 45x70, it's very weak and others should help.
I would replace one of the outer ones at a time.

 

[holmberg87]

What does it look like on top of the hammarband?

 

[Markus8558]

Holmberg 87:

Here is a picture of how it looks at the top


The 45*70 regel rests in one of those plintsko down by the plint a bit above where the 170*45 reglarna end.

 

[holmberg87]

Okay! Yes, 45x170 that you want to replace does help support the construction to some extent. But it's not a problem to replace them. Remove one at a time and screw-glue the new ones in place and lay tar paper underneath against the concrete.

If you have the option, it's good to provide support, but I absolutely think it's fine to replace it anyway.

 

[olofh]

Otherwise, it only costs a couple of tens per day to rent a stämp so you won't have to worry

 

[Markus8558]

Thanks holmberg87!

can try to detach a beam and support it against the hammarband in the meantime I'm replacing it just to be safe!

 

[Markus8558]

not a bad idea either olofh

 

[Daniel 109]

I would definitely use a domkraft. No beefy things are needed.

 

[justusandersson]

I agree with what holmberg87 wrote. It is the center post that bears the load. The outer one's task is to stabilize the center post. Alone, a 45x70 post has too short a buckling length in the weak direction to do the job.
Those interested can read more on the wood guide according to the following link:
https://www.traguiden.se/konstrukti...avor-av-konstruktionsvirke/?previousState=100

 

[Markus8558]

I agree with what holmberg87 wrote. It's the center post that bears the load. The outer posts' task is to stabilize the center post. Alone, a 45x70 post has too short a buckling length in the weak direction to do the job.
Those interested can read more on the wood guide according to the following link:
[link]

But with that said justusandersson, should it then be possible to replace one at a time? I could also get a support post just to be safe.

 

[justusandersson]

Change one at a time. I don't think you need any stämp. A 45x170 is actually enough. There are probably two for symmetry's sake.

 

[Markus8558]

Okay, thanks for the feedback. Nice to get some feedback when you're a bit unsure. Silly to do something rash!