We have an attached older (1974) garage measuring 3.5x7.2m where the previous owner built an additional newer (2002) garage of equal size directly side by side. And made a pitched roof above both garages.
I have now opened up the facade on the old garage with the purpose of making a small opening of about 3.5 meters. Since the pitched roof now carries the snow, there is nothing other than the dead load of the old garage and the ceiling of the new one to be supported by the inner wall of the old garage.
Since I still want to store things like planks and skis above the garages and don't want to complicate things for any future owners, I have decided to overdimension the opening and bought myself a gl30c 315x90 and 2 pcs 90x90 gl30h for the opening.
If we now speculate that someone in the future manages to drag up 2.5 tons (including the dead load of the new garage's ceiling), I have calculated that neither the post nor the beam exceeds 40% of its capacity. However, the point load then becomes just under 20 kilonewtons, which brings me to considerations regarding how the new slab handles this pressure.
The only things I know about the slab are:
1. The previous owner's statement that "everything" in the construction is over-dimensioned.
2. The new roof where a carport was also built. To a total area of 9x7 meters whose ridge beam 115x115 goes down and is supported by the new slab. This is the opposite side, and one can then assume that the slab is point-reinforced there. But "should" be seriously built over the entire area...
3. I also change tires on the new slab for our 2-ton car and have point-loaded it for months when a 1.5-ton car was on jack stands. All this seems the slab handles without visible impact.
What does this say? If the slab easily handles a car on jack stands and to avoid having to drill out and reinforce it. What should I place the pillars on to have some suspenders and a belt to avoid risking cracking the slab when the next owner hypothetically drags up the small construction on top of the garage waiting for better weather?
I have now opened up the facade on the old garage with the purpose of making a small opening of about 3.5 meters. Since the pitched roof now carries the snow, there is nothing other than the dead load of the old garage and the ceiling of the new one to be supported by the inner wall of the old garage.
Since I still want to store things like planks and skis above the garages and don't want to complicate things for any future owners, I have decided to overdimension the opening and bought myself a gl30c 315x90 and 2 pcs 90x90 gl30h for the opening.
If we now speculate that someone in the future manages to drag up 2.5 tons (including the dead load of the new garage's ceiling), I have calculated that neither the post nor the beam exceeds 40% of its capacity. However, the point load then becomes just under 20 kilonewtons, which brings me to considerations regarding how the new slab handles this pressure.
The only things I know about the slab are:
1. The previous owner's statement that "everything" in the construction is over-dimensioned.
2. The new roof where a carport was also built. To a total area of 9x7 meters whose ridge beam 115x115 goes down and is supported by the new slab. This is the opposite side, and one can then assume that the slab is point-reinforced there. But "should" be seriously built over the entire area...
3. I also change tires on the new slab for our 2-ton car and have point-loaded it for months when a 1.5-ton car was on jack stands. All this seems the slab handles without visible impact.
What does this say? If the slab easily handles a car on jack stands and to avoid having to drill out and reinforce it. What should I place the pillars on to have some suspenders and a belt to avoid risking cracking the slab when the next owner hypothetically drags up the small construction on top of the garage waiting for better weather?