W = 150 kips Problem 4: Given the 3-story, 2-bay, Steel Special Moment Resisting Frame (SMRF), shown to the right, with a fundamental period in the acceleration controlled region of the response spectrum and a seismic base shear of 70 kips, what are the 2nd floor and 1st floor seismic story forces (F2 and F) and F & Fp3 12'-0" W= 140 kips + F & Fp2 12'-0" what are the 2nd floor and 1st floor seismic diaphragm forces (F and F. W = 200 kips F & Fp1 p2 |Fp1) ? Note: You can get C, from the Seismic Base Shear divided by the weight (if needed) and don't forget to check the building code's upper and lower bounds on the diaphragm forces. Also, the weights of each level (which includes the weights tributary to each level) are provided on the figure, shown to the right. 10'-0" 15'-0" 15'-0"