Onur bey cevabınız için teşekkürler, müsaadenizle ben biraz ısrarcı olacağım, ASCE der ki;
"12.2.5.1 Dual System. For a dual system, the moment frames shall be capable of resisting at least 25 percent of the design seismic forces. The total seismic force resistance is to be provided by the combination of the moment frames and the shear walls or braced frames in proportion to their rigidities."
"12.2.5.10 Shear Wall-Frame Interactive Systems. The shear strength of the shear walls of the shear wall-frame interactive system shall be at least 75 percent of the design story shear at each story, The frames of the shear wall-frame interactive system shall be capable of resisting at least 25 percent of the design story shear in every story."
"12.2.5.4 Increased Building Height Limit for Steel Braced Frames and Special Reinforced Concrete Shear Walls. The height limits in Table 12.2-1 are permitted to be increased from 160 ft (50 m) to 240 ft (75 m) for structures assigned to Seismic Design Categories D or E and from 100 ft (30 m) to 160 ft (50 m) for structures assigned to Seismic Design Category F that have steel braced frames or special reinforced concrete cast-in-place shear walls and that meet both of the following requirements:
I. The structure shall not have an extreme torsional irregularity as defined in Table 12.2-1 (horizontal structural irregularity Type lb).
2. The braced frames or shear walls in any one plane shall resist no more than 60 percent of the total seismic forces in each direction, neglecting accidental torsional effects."
Eğer tek aks üzerinde çerçeve için minimum %30 oranını tutturmaya kalkarsak, ortalama bir sistemde çerçeve için zaten başka bir tahkike gerek kalmayacak şekilde overdesign kesitler çıkabilir diye düşünüyorum.
Kolay gelsin.