Arnonühm
2014-01-28 15:29:24
- #1
Hi,
I am planning to convert a barn/shed into a residential house with a workshop (hobby).
The barn was planned and probably built in 1966. The barn stands on a strip foundation (900mm thick), the floor is poured with 100 mm concrete. At a height of 4 m, a ring beam runs on the 300 mm thick outer wall, 500 mm high, 300 mm wide.
This barn has 203 m² (16 m wide, 13 m deep) usable space and is to be converted, with a workshop and garage in the front part, and additional rooms in the back. For this purpose, additional strip foundations and load-bearing walls will probably be added.
On this then 4 m high structure, another floor with ~130 m² is to be built. Due to the existing conditions (which will be explained at some point when the project presentation takes place), it is best to build the floor across the entire width of 16 m, with a depth of 8.5 m. A shed roof with a 5° pitch towards the front of the house is planned, so that the main roof load rests on the front wall. The outer walls on the right and left would thus rest on the old masonry including the ring beam and concrete ceiling, the rear outer wall stands on a load-bearing interior wall to be constructed, and the wall at the front is the reason for this post. For design reasons, I would like not to set the front wall flush with the existing wall, as otherwise there would be a 16 m wide and 7.5 m high continuous house front. I am envisioning a cantilevered overhang (free-standing, not supported) of the upper floor.
Now the question is, can one roughly estimate at which thickness of the concrete ceiling which overhang is feasible? The wall thickness of the outer wall of the upper floor, i.e. 36.5 cm, should be the minimum in my view, since shear forces are probably the least problem for a concrete ceiling, right?
Greetings from the Rhineland
I am planning to convert a barn/shed into a residential house with a workshop (hobby).
The barn was planned and probably built in 1966. The barn stands on a strip foundation (900mm thick), the floor is poured with 100 mm concrete. At a height of 4 m, a ring beam runs on the 300 mm thick outer wall, 500 mm high, 300 mm wide.
This barn has 203 m² (16 m wide, 13 m deep) usable space and is to be converted, with a workshop and garage in the front part, and additional rooms in the back. For this purpose, additional strip foundations and load-bearing walls will probably be added.
On this then 4 m high structure, another floor with ~130 m² is to be built. Due to the existing conditions (which will be explained at some point when the project presentation takes place), it is best to build the floor across the entire width of 16 m, with a depth of 8.5 m. A shed roof with a 5° pitch towards the front of the house is planned, so that the main roof load rests on the front wall. The outer walls on the right and left would thus rest on the old masonry including the ring beam and concrete ceiling, the rear outer wall stands on a load-bearing interior wall to be constructed, and the wall at the front is the reason for this post. For design reasons, I would like not to set the front wall flush with the existing wall, as otherwise there would be a 16 m wide and 7.5 m high continuous house front. I am envisioning a cantilevered overhang (free-standing, not supported) of the upper floor.
Now the question is, can one roughly estimate at which thickness of the concrete ceiling which overhang is feasible? The wall thickness of the outer wall of the upper floor, i.e. 36.5 cm, should be the minimum in my view, since shear forces are probably the least problem for a concrete ceiling, right?
Greetings from the Rhineland