I am considering creating a new doorway in a central load bearing wall in my terraced house on the first floor, as a new entrance to one of the bedrooms. The internal wall is single brick lined about 15cm thick with plaster, and rests on top of a beam which is in my living/dining room. The wall supports the ceiling joists for my bedrooms and also the timber struts for my roof.
This layout is a good example for the above description in my house. https://www.beamcalculation.co.uk/calculations/beam-supporting-internal-wall-roof-ceiling-floor
I want to move my existing staircase which runs in the middle of my living/dining room to run along the side of a wall to open up the space, which is why I would then need to create a new doorway as well.
Firstly the steel beam has been there for a good number of unknown years, and was put in one of the previous owners. It doesn't seem to have any building control signoff.
Now since I want to add a new doorway in this central wall I am not sure if I need to get retrospective BC signoff and structural calcs done before I can consider moving the staircase and adding a new doorway? The above website can give me some calcs but I am unsure if I can anyway check if the beam specifications meet or exceed this.
I do intend to get BC approval for the staircase move and new doorway, but the existing steel beam worries me if this will cause me trouble.
With the new lintel for the doorway do I then need some further structural calculations done for what needs adding here or can a standard 1200mm reinforced steel concrete suffice of this type suffice?
https://www.jewson.co.uk/p/supreme-concrete-prestressed-lintel-r15120-1200-x-140-x-100mm-LNBRN155
I would be grateful if anyone can advise. Thanks.
This layout is a good example for the above description in my house. https://www.beamcalculation.co.uk/calculations/beam-supporting-internal-wall-roof-ceiling-floor
I want to move my existing staircase which runs in the middle of my living/dining room to run along the side of a wall to open up the space, which is why I would then need to create a new doorway as well.
Firstly the steel beam has been there for a good number of unknown years, and was put in one of the previous owners. It doesn't seem to have any building control signoff.
Now since I want to add a new doorway in this central wall I am not sure if I need to get retrospective BC signoff and structural calcs done before I can consider moving the staircase and adding a new doorway? The above website can give me some calcs but I am unsure if I can anyway check if the beam specifications meet or exceed this.
I do intend to get BC approval for the staircase move and new doorway, but the existing steel beam worries me if this will cause me trouble.
With the new lintel for the doorway do I then need some further structural calculations done for what needs adding here or can a standard 1200mm reinforced steel concrete suffice of this type suffice?
https://www.jewson.co.uk/p/supreme-concrete-prestressed-lintel-r15120-1200-x-140-x-100mm-LNBRN155
I would be grateful if anyone can advise. Thanks.