Hello all skilled house builders!
I am going to build a single-story house of 150m2 with a basement under the entire house. Now to the dimensioning of the basement wall.
The plan is to build up with 25cm Leca where needed, but the front and interior walls with e.g. 19cm blocks. I have read and calculated a bit according to Finjas' good dimensioning guideline http://se.maxit-cms.com/media/22/pdf/leca/vaggar/murverkkallarytter.pdf. When backfilling at the back (about 2.1-2.3m), 25cm blocks are not enough to handle spans over 3.5m. To increase the spans, you can make buttresses (or, of course, install interior walls). Does anyone know how far into the house a buttress should be to be sufficiently effective?
Or does anyone have other tips on how I can achieve better durability in my case?
Edit: Found a construction guideline that seems very complete. On page 41, it talks about side-supporting wall (=buttress?).
http://www.nystromscement.se/pdf/murverk_proj_konstr.pdf
I am going to build a single-story house of 150m2 with a basement under the entire house. Now to the dimensioning of the basement wall.
The plan is to build up with 25cm Leca where needed, but the front and interior walls with e.g. 19cm blocks. I have read and calculated a bit according to Finjas' good dimensioning guideline http://se.maxit-cms.com/media/22/pdf/leca/vaggar/murverkkallarytter.pdf. When backfilling at the back (about 2.1-2.3m), 25cm blocks are not enough to handle spans over 3.5m. To increase the spans, you can make buttresses (or, of course, install interior walls). Does anyone know how far into the house a buttress should be to be sufficiently effective?
Or does anyone have other tips on how I can achieve better durability in my case?
Edit: Found a construction guideline that seems very complete. On page 41, it talks about side-supporting wall (=buttress?).
http://www.nystromscement.se/pdf/murverk_proj_konstr.pdf
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Well, to be entirely sure (as usual) a constructor should calculate this, but I have a longest wall of 4.5 m, reinforced in every row (every other would have sufficed according to the constructor, but since you're at it...).
I also used 290 mm solid stone below ground level.
http://www.familjenlindstrom.se/images/byggahus/murning/
I also used 290 mm solid stone below ground level.
http://www.familjenlindstrom.se/images/byggahus/murning/