help with construction calculation.

[Ribons]

I need help calculating what stress my concept can withstand.
I want to use C14 lumber with C/C spacing of 400mm in floor/wall studs and build on 2 levels.
Is there anyone who can help me?

 

[larsbj]

Without calculation, one can say that in walls C14 is fully sufficient. In joists, the span is limited to approximately 3.5-3.8 m with 45x220. More input data are needed for calculation.

 

[Ribons]

The fog that I want to use is 50*200

 

[Ribons]

The house's width will be 8 m external dimensions and approximately 20 m long, with a heart wall centered in the property (4 m from the outer wall). The ceiling height will be 2.7 m.

 

[larsbj]

Dim that I want to use is 50*200

calculate with a maximum span of 3.5m.

 

[Ribons]

for what? the wall studs or the floor joists, and is this a number I can use or more just an educated guess?

 

[larsbj]

for what? the wall studs or the floor joists, and is this a number I can use or more just a qualified guess?

3.5m is for floor/inter-floor beams. For the wall studs, there is a good margin.

The number is an estimate, on the lower side of what a calculation would give.

 

[Ribons]

Okay, so if I understood you correctly, it should work if I have 4 M from the outer wall to the heart wall as an intermediate support, a quick calculation that is?

 

[larsbj]

ok so if I understood you correctly it should work if I have 4 M from the outer wall to the core wall as an intermediate support, a quick calculation that is?

Yes, if the external dimensions of the house are 8 m, the free span should be approximately 3.6-3.7, so with s400 and cross-bracing it should work.
Is it a residence or what type of load is it? heated?

 

[Ribons]

Yes, it's housing, not quite sure which load you mean, guessing you mean climate zone, I believe it's 1-2 (Mälardalen
Then what is a krysskolvning?

 

[hempularen]

I believe that larsbj with belsatning refers to the area of use. For residential buildings, floor joists should be designed for 200kg/sqm (plus the weight of the construction itself). In addition, there are requirements for it to withstand certain point loads.

The corresponding requirement for, for example, office buildings is 400kg/sqm. Naturally, one may need even higher requirements for special premises, parking garages, workshops, etc.

 

[hempularen]

Cross-bracing involves regularly connecting the studs with crosspieces of slimmer studs. This means that the load on a floor joist is partially distributed to surrounding joists.

 

[Ribons]

ok like a kortling roughly?

 

[larsbj]

ok like a kortling approximately?

Previously, thinner studs were set as an x, hence the name.
Now it is usually done by using kortlar with the same dimension as the floor joists.

 

[Ribons]

Ok. You learn something new every day