Sizing of mono-pitched truss type 2

[Icon77]

Hello.
I have a question regarding the sizing of a half-hip roof truss type 2.
Can I use Svensktträ Lathunden to calculate a w-truss since the half-hip is just one half?
The span I need is 6m. Can I use the dimensions for 6m or should I calculate for 12m?

 

[klaskarlsson]

Hello.
I have a question regarding the dimensioning of a mono-pitch truss type 2.
Can I use the Svensktträ Lathunden and calculate on a w-truss since the mono-pitch is only half?
The span I need is 6m. Can I use the dimensions for 6m or should I calculate on 12m?

I would have used a "half" 12 m truss for dimensioning.

In reality, it shouldn't be necessary for all elements, for example, the bottom chord is only half as long. However, the top chord is probably the same dimension and so are likely the support beams. But you probably need to calculate the construction to know exactly: Therefore, I would have used the larger dimensions if I wanted to standardize it.