If you make the right and left arms of the elevator curtains, you will make the structure more rigid in the Y direction. Thus, you solve the relative story drift problem. In this way, you have the opportunity to reduce some column sizes. In such a structure, square columns instead of 80/40 columns reduce the dimensions and increase the bearing capacity. S1 column dimensions are incorrect in the ground and basement. The S60 column is not connected in the x direction. The necessity of S58, 59 columns is discussed. The direction of all the columns on the E (or O) axis is in the x direction. As such, you had to bring the dimensions up to 80/40. Examine the roof beam and floor loads. Include stair loads in my site. ..........
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