1. When attempting to qualify a two-stage analysis (ASCE 7-10, Sect. 18.104.22.168) for a 2-story building that has one SFRS stacked on top of another:
2. Are there design equations that can be used to approximate the stiffness of light gauge shear wall systems? I understand that stiffness can be determined by dividing the story shear by the total story drift, but how can that be done if have not yet determined your seismic forces?