Unsure concrete footing and roof truss

[Andreas_Evelina]

As I mentioned in previous posts, I will attempt to build a garage with a carport this spring. For the tasks I don't feel capable of handling myself, I have requested prices.
No. 1: Roof Trusses
I have requested prices from several suppliers, and all have quoted W-trusses except for one that only includes a brace in the middle from the top to the bottom chord. The span is approximately 7.2 m. I asked them if it really holds, what do you think? I should add that there are sheathing, roof tiles, and double gypsum boards inside. Snow load zone 2.0
No. 2: Foundation
The garage roof is extended to create a carport. The carport will be supported via four trusses to a glulam beam (calculated by the supplier above) down to four posts/pillars (2 on each side). One of the ground contractors says that the largest pre-made pillar with an adjustable saddle is sufficient for the purpose. Digging down and placing on leveled gravel is adequate. What do you think? I am afraid that the carport could "lift" in strong winds, or?
Drawing below.

 

[fahlis]

Number 1: Roof trusses
… one that only has a single brace in the middle from the upper frame to the bottom frame. The span is about 7.2 m. I asked them if it really holds, what do you think?

7.2 m is probably on or slightly above the limit for such a roof truss. But it naturally also depends on how it is designed …

 

[Andreas_Evelina]

45*145 c24 I believe

 

[Andreas_Evelina]

No one has any answer to this?
I have decided to cast the plinths using the largest pipes available and fairly deep, just to be on the safe side.

 

[MathiasS]

If the constructor says the truss will hold, it probably does. It's not difficult to size this for someone doing it all day long.

I would personally feel more secure with a W-supported truss, I don't think I've ever seen anything else for these spans.

Here's an example with a 27-degree angle:

http://www.lundqvisttakstolar.se/sites/default/files/7245-27.pdf

http://www.lundqvisttakstolar.se/takstolar

By the way, there's a good drawing there to build from, so why not go for it yourself......!

 

[Gizer]

No one has an answer to this?
I have decided to cast the plinths using the largest pipes available and quite deep, to be on the safe side.

Otherwise, you can look at plinths of this type: http://www.blixbocement.se/produkter/plintarfundament/
I used these when I built a dormer with an extended roof, perfect for casting adjustable post bases in.

 

[Andreas_Evelina]

Otherwise, you can look at plinths of this type: [link] I used those when I built a dormer with an extended roof, perfect for casting adjustable post shoes into.

You, these were not bad! They must remain, even for Gudrun.

 

[Andreas_Evelina]

Otherwise, you can check out plinths of this type: [link]
I used those when I built a dormer with an extended roof, perfect for casting adjustable post shoes into.

Hey, these weren't bad! They must remain, even for Gudrun

 

[olotor]

Check the old trusses, use them as a template and make similar ones yourself. Use construction timber.

 

[Andreas_Evelina]

Check the old roof trusses, use them as a template, and make similar ones yourself. Use construction timber.

What do you mean by "de gamla takstolar a"?

 

[Jonas Kenntoft]

Did you manage with the roof trusses? I have the roof truss book software if you want me to calculate anything.

 

[Andreas_Evelina]

The garage is in place (there's a thread about the entire build) so now it's just a matter of keeping our fingers crossed. I chose trusses because I got a really good price. Regarding the pillars, I went with pre-cast pillars.