I have building with 20 storey. The lift core started from the Base. I have another lift core which is started from third storey.
Can I model this core as a shear wall from third storey.
What I need to consider for irregularities
Are these columns circular or rectangle.
If these are circular then spacing of spiral looks OK. If rectangular, check ACI
Soil on these areas normally hard to soft rock categories, which have good bearing capacity.
Please keep in mind that all joints should be detailed properly. And casting should be inspected thoroughly
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Sure for uplift , it requires, yes the foundation which is not backfilled for longer period shrinkage can be provided. But for shorter period no need to provide topr/f
I am not prefer to provide temperature reinforcement in foundation. Because foundation are under the soil and there is very minimal temperature variation isnide the soil
First make slab as 6ft deep rib type beams at 2 ft interval both side and concrete these rib first than after some days pour the remaining slab. These may help to the distribution of load on formwork.
Use steel prop's and plates