Help with interpreting construction drawing

[Rickie]

Hello!

Moved my thread to the correct sub-forum

I would need some assistance from you.

I have recently bought a house, a split-level villa, built in '64.

2 things, I believe we have a self-supporting roof, can this be confirmed just through drawings? It looks like the one below in the document I received from the municipality


And, the garage. On the drawings, I think I can see that there should be 2 pillars in the middle of the garage. But as you can see in the picture, these are not there? No traces either as far as I can see? How should this be interpreted?



Sincerely,
Rickard

 

[surfarn]

I am not an expert in the field, but I don't think just from your pictures one can answer your questions. I believe more information is needed about the spans of the roofs and the type of roof truss on the garage. If it's a gable roof on the garage and there is a hidden beam according to the picture, then I do believe posts are needed. Is it possible to see if the roof is sagging? You can draw a masonry string between the walls and see if it touches the roof.

 

[Matti_75]

If it is a construction drawing you have uploaded, the partition wall is load-bearing. Concerning the garage, you lack pillars and a beam in the middle. What is on top of the garage?

 

[Rickie]

Hi,

Thank you for the responses,

Here is the entire "drawing" that I received from the municipality.



On top of the garage is our living room...

View attachment Solbacken_15.pdf

 

[Rickie]

Got a response from a Civil Engineer I emailed, saying that the drawings I received are architectural drawings/building permit drawings. So I need to get hold of the construction drawings or get a carpenter out for an assessment.

I'm going to chase up the municipality a bit, if they don't have them, is it impossible to get hold of the K-Ritningarna then?

 

[surfarn]

The municipality probably doesn't have any construction drawings. But regarding the garage, I wonder why it hasn't already caved in? The span looks to be around 7 meters with a hidden beam of 8 meters supporting the floor structure. And furthermore, there's a floor above.

 

[Satsuki]

In the garage picture/photo, I think it looks like the ceiling is sagging near the windows, but it could be an optical illusion...
Could it be that the supports in the garage have been removed and the load-bearing capacity increased with an extra beam?

In our house, the upper floor is supported by approximately 11 m long glued laminated beams and 2 supports inside the house per beam. I know people with similar houses where 1-2 supports have been removed, causing the ceiling to sag downwards, but the upper floor has (yet) not collapsed. In other houses, an extra beam has been installed when the supports are removed, and there is no impact on the ceiling...

 

[Rickie]

no, I am "quite" sure that it doesn't hang. What you see in the picture is more of an optical illusion due to the light. But I should measure and see.

No one reacted to it during the viewing anyway, and like I said. There are no traces of old supports?

I should probably get a carpenter to take a look at it, it's certainly not impossible to put in 2 supports.

 

[Satsuki]

Is it a "dropped" ceiling in the garage? Maybe you can open a small hatch in the ceiling where the beam should be and see what it looks like inside? Maybe you'll find an extra beam and then you'll know what's going on

 

[Rickie]

Realized I've forgotten a detail. The roof is concrete... Does that have any impact?

 

[fahlis]

Yes, the construction has been altered, the slab reinforced in such a way that the columns are no longer needed.

 

[Johve]

Yes, then you have changed the construction, reinforced the slab in such a way that the columns are not needed.

But you don't just reinforce more and thus get rid of a column or load-bearing wall. It could very well be that a previous owner removed the column/wall out of pure stupidity.