6,093 views ·
25 replies
6k views
25 replies
Cutting and "restoring" reinforcement in basement floor?
Self-builder
· Arvika
· 1 527 posts
I don't really know what you want to know. Often the entire slab is made "thicker" instead of making recesses for load-bearing walls. It has happened that someone has made it 150mm, but that is very unusual.B bossespecial said:
Self-builder
· Arvika
· 1 527 posts
Then you haven't done many standard villa slabs on ground..
You are speaking against better knowledge. I would say that at least 95% of houses built today have a 100mm slab with a 200mm edge beam.C C.Lundin said:
It sounds like you're talking about multi-family houses.
Self-builder
· Arvika
· 1 527 posts
Exactly, you can't compare apples with pears
I have done groundwork for many slabs, both residential slabs and school buildings.
The common factor is a 100mm slab. The difference is the number of recesses, where a residential building mostly just has edge beams, and larger buildings have recesses in the slab where load-bearing walls are placed.
Some industrial buildings have had 120mm floors, but then the last 20mm is some type of fine finish to achieve a smooth, denser surface on the floor.
Of course, sometimes thicker slabs are cast, but the usual is 100mm.
The common factor is a 100mm slab. The difference is the number of recesses, where a residential building mostly just has edge beams, and larger buildings have recesses in the slab where load-bearing walls are placed.
Some industrial buildings have had 120mm floors, but then the last 20mm is some type of fine finish to achieve a smooth, denser surface on the floor.
Of course, sometimes thicker slabs are cast, but the usual is 100mm.
Apartment buildings are a bit more extensive than that and they definitely don't have slabs that thin.V vectrex said:
I've never made a house slab that thin, and I've never seen plans that would suggest it either. Are they module houses that don't require more than that?
PS. Apologies to TS for going very OT now.
Self-builder
· Arvika
· 1 527 posts
Simply put, it fundamentally concerns the loads you have and the condition of the ground. In this case, small loads but poorer ground condition. However, in a pile-supported house, the slab is thicker ~200mm since the slab does not rest on the ground but spans between the piles.
I had thought once and twice about different alternatives to avoid having to dig up the entire basement and just wanted you to do it too. (strange when you think about it)
Replacing wells and adding some new connections in itself I don't think is a reason to replace everything, now of course I don't know the condition of it.
Relining is a question in itself and can be a solution, I know too little myself and have only 1 good result nearby. (2 floors + KV from early 40s)
What I wrote last was if the new construction didn't need drainage on the basement level, you could just dig up a square for connection and then run it visibly in the basement.
Best regards, a work-shy person.
Replacing wells and adding some new connections in itself I don't think is a reason to replace everything, now of course I don't know the condition of it.
Relining is a question in itself and can be a solution, I know too little myself and have only 1 good result nearby. (2 floors + KV from early 40s)
What I wrote last was if the new construction didn't need drainage on the basement level, you could just dig up a square for connection and then run it visibly in the basement.
Best regards, a work-shy person.
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