Joints shear control

[aet]

Consider a building (with 1 or more basement floors) surrounded by rigid basement shears. We define basement rigidity when analyzing. Structural site is ductile. (for the basement) ide calculates the earthquake loads according to the modes for the static basement. For basement floors, the force coming to the basement floors is calculated by taking R:1.5 according to the formula defined in the regulation. For frames with high ductility level, it is ok to secure the column-beam junctions for upper floors. Why does it do it for basements. Basements are not ductile, so when calculating the earthquake load on this floor by considering the rigid body behavior, I think that the shear safety calculation for basement floors is unnecessary. In buildings surrounded by basement curtains, we use beamless flooring on basement floors, while we use frames with high ductility on the upper floors. If we use beams, we will be penalized to ensure siege security in the basement floors. Imagine that there are beams with large spans in the basements of a building, let's imagine that the upper reinforcement is excessive, the cross-sections of the columns that do not continue to the superstructure only in the basement floors are small. In such a case, the program gives an error. ... EEC