Hello everyone!
Here is the situation: An older building from around 1923, with rubble stone masonry in the basement and solid brick walls above. The ceiling between the basement and the ground floor was originally a vault ceiling, but sometime in the 1960s it was replaced by a concrete screed of unspecified type. However, this screed is now crumbling and its load-bearing capacity is questionable. As the new owner, I would like to replace it.
The steel beams are 14 cm (5.5 inches) high with a flange width of 7 cm (2.75 inches). We are currently having a structural analysis carried out.
From what I understand, there are three possible ways to replace the ceiling:
1. Install formwork underneath and pour concrete in the gaps. Whether this is feasible depends on the structural assessment, which is not yet clear.
2. Apply a composite ceiling / precast slab above. Here, the finished floor height is an obstacle because there are only 11 cm (4.3 inches) between the top of the steel beams and the finished floor level. Unfortunately, the finished floor height cannot be changed.
3. Use suspended elements, for example made of polystyrene (HOWI), with concrete poured over them. The problem is that the spacing between the beams ranges from 1.10 m to 1.30 m (3.6 ft to 4.3 ft), and as far as I know, no such wide elements are available.
I hope I have explained the situation clearly. Does anyone have good ideas on how the ceiling structure could be realized?
Thanks in advance!
Here is the situation: An older building from around 1923, with rubble stone masonry in the basement and solid brick walls above. The ceiling between the basement and the ground floor was originally a vault ceiling, but sometime in the 1960s it was replaced by a concrete screed of unspecified type. However, this screed is now crumbling and its load-bearing capacity is questionable. As the new owner, I would like to replace it.
The steel beams are 14 cm (5.5 inches) high with a flange width of 7 cm (2.75 inches). We are currently having a structural analysis carried out.
From what I understand, there are three possible ways to replace the ceiling:
1. Install formwork underneath and pour concrete in the gaps. Whether this is feasible depends on the structural assessment, which is not yet clear.
2. Apply a composite ceiling / precast slab above. Here, the finished floor height is an obstacle because there are only 11 cm (4.3 inches) between the top of the steel beams and the finished floor level. Unfortunately, the finished floor height cannot be changed.
3. Use suspended elements, for example made of polystyrene (HOWI), with concrete poured over them. The problem is that the spacing between the beams ranges from 1.10 m to 1.30 m (3.6 ft to 4.3 ft), and as far as I know, no such wide elements are available.
I hope I have explained the situation clearly. Does anyone have good ideas on how the ceiling structure could be realized?
Thanks in advance!
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