So the conclusion is that it is self-supporting?
Yes.
What is a stiffening in this case? As the drawing shows, 1, 7, and 5 are stiffening. It seems obvious that there should be support under 1 and 5, but to me, it looks like 7 should also have it in this case, even though W usually is self-supporting.
It also looks like this in the table (if I interpret it correctly), i.e., the bottom chord is 145mm high, and it says "stiffening <4300mm," which I interpret (perhaps incorrectly) as stiffening is required a maximum of 4.3m from the outer supports.
It also looks like this in the table (if I interpret it correctly), i.e., the bottom chord is 145mm high, and it says "stiffening <4300mm," which I interpret (perhaps incorrectly) as stiffening is required a maximum of 4.3m from the outer supports.
There are also partitions on top. These are simply beams along the ceiling that prevent the roof truss from buckling sideways.
We have similar trusses with a span of 6.7 m 170 in the upper chord, 145 as a floor structure, and 70 in the props. Purchased and constructed by an authorized truss manufacturer.
They are supposed to be self-supporting..
They are supposed to be self-supporting..
Ahaa, then I believe I understand. Thank you
But now I'm confused on my drawing it says "bracing: 800" on the top beams. What does that mean? On the construction drawings it's raw wood planks.. and so in reality as well.D Daniel 109 said:
I have now spoken with the manufacturer, it is self-supporting.