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Happy Independence Day All

You may obtain your desired information from the following link: http://www.pec.org.pk/schedule_first.aspx# Regards.

WAA. From field point of view, it is better to keep the column reinforcement percentage to about 50% of maximum allowed by the code, as in the normal practice column main bar splicing is mostly done at one location, and at that location actual bar area would be doubled & it must not be more than the maximum permitted by the code. However, splicing may be staggered as well in compelling circumstances. I order to limit reinforcement percentage to desired level, you may need to increase the column sizes in the affected floors, or add shear walls at suitable places. You will need to model elevators to act as shear walls. Some people model stairs as well. I don't model stairs normally. Regards.

I would also add that you need to place the foundation on competent strata so that settlements are within acceptable limit. Settlement governs foundation burial depth too at times. Thanks.

As it is a reinforced concrete structure, the sliding should not be a concern due to the self-weight of the structure; same goes for overturning moment. The consideration of the frost penetration will govern the depth, if applicable. IF there is SOG, it can also govern the minimum possible depth of the footing. Why would you ask that? How can a retaining wall transfer any thrust to the foundation? There is no need to split the structure of this size in three portions. What is dynamic stiffness? I have not come across this term before in relation to the structural design of a building.