Offset trusses

[fillefjonken]

Hello!

Wondering if anyone has implemented a solution as described below, and if it is a proven solution?
Briefly:

1.8 linear meters of interior wall (95mm) will be demolished in favor of a more open floor plan.
Single-story house with insulated ceiling joists and trusses c/c 1200, so no living spaces above.
Span between exterior walls about 8m.

To avoid visible beams and columns, I am considering suspending the trusses that lose their support using a transverse beam mounted on top of the truss frame. Surely this must be possible to solve in this way?

Here's how it currently looks:



And this is the desired position of the interior wall:


This means that truss 4 & 5 lose their middle supports, but truss 3 & 6 will instead handle these loads.
What do you think? Feasible, provided it is correctly dimensioned?

 

[Tompafix]

Hello!

I wonder if anyone has made a solution as follows, and if it is a proven solution?
Briefly:

1.8 linear meters of interior wall (95mm) will be torn down in favor of a more open floor plan.
Single-story house with insulated attic ceiling and trusses c/c 1200, so no living spaces above.
Span between exterior walls about 8m.

To avoid a visible beam and column, I am considering hanging the trusses that lose their supports, using a transverse beam mounted on top of the truss frames. Surely it must be possible to solve it this way?

So this is how it looks now:

[image]

And this is the desired position of the interior wall:
[image]

This means that trusses 4 & 5 lose their middle supports, but then trusses 3 & 6 will instead handle these loads.
What do you think? Feasible provided it is correctly dimensioned?

What type of trusses are they?

 

[fillefjonken]

What kind of trusses are they?

Unsure if they are trusses or frames. Do not have access to the house quite yet.

 

[fillefjonken]

Unsure if it is a truss or a framework. Don't have access to the house just yet.

It's a truss.

 

[Tompafix]

Then they should be self-supporting, but consult with a structural engineer when you have access to the drawings.

 

[fillefjonken]

Then they should be load-bearing, but check with a designer when you have access to the drawings.

Interesting! What makes you think that?
I don't know if the interior wall is load-bearing, just something I assumed.
I have access to quite a few drawings, but there are also some missing, so I have information that says both one thing and the other. Hence my confusion simply..

 

[fillefjonken]

Attached is the drawing of the roof trusses. If the supports should be shown here, the wall is not load-bearing. The pens mark truss 4 & 5 according to the images above.

 

[Tompafix]

Attached is a drawing of the roof trusses. If the supports should be shown here, then the wall is not load-bearing.
The pens mark trusses 4 & 5 according to the pictures above.
[image]

Those trusses are usually self-supporting as mentioned. @justusandersson usually can answer these questions

 

[justusandersson]

Is there any explanatory text on the truss drawing that states what "FP78K-T1-2.0" stands for?

 

[fillefjonken]

Is there any explanatory text on the truss drawing that says what "FP78K-T1-2,0" stands for?

Unfortunately, I only have this schematic diagram of the trusses.

 

[justusandersson]

Such trusses rest only on the outer walls. There are no load-bearing interior walls. The exception can be at house angles where the trusses change direction. Above the bay windows, there are glulam beams that take up the truss load, as shown in the roof plan.