12.8 Given five-story building, that weighs a 100kips and has concrete shear walls and special moment-resisting frames: a) Determine Response Modification Factor, R, from ASCE 7, Table 12.2-1 for Dual System of Special Moment Frame and Special reinforced concrete shear wall (Type D-3) b) Calculate Seismic Base Shear (V) using the following ASCE 7 equations and building information: SDS (R/1) V=C₂W where C, is the lesser of Accelerations (USGS maps): SDs = 1.1 SD1 = 0.6 Cs = and Cs = SD1. I T. R Building Period: T= 0.5 sec Importance Factor: le=1.0 (commercial building) c) The architect has decided to eliminate the moment frames because the deep beams along the building perimeter reduce window openings. Determine the percent increase in base shear if the moment frames were eliminated and lateral resistance was provided with only a special reinforced concrete shear wall system (Type B-4 in ASCE Table 12.2-1)
12.8 Given five-story building, that weighs a 100kips and has concrete shear walls and special moment-resisting frames: a) Determine Response Modification Factor, R, from ASCE 7, Table 12.2-1 for Dual System of Special Moment Frame and Special reinforced concrete shear wall (Type D-3) b) Calculate Seismic Base Shear (V) using the following ASCE 7 equations and building information: SDS (R/1) V=C₂W where C, is the lesser of Accelerations (USGS maps): SDs = 1.1 SD1 = 0.6 Cs = and Cs = SD1. I T. R Building Period: T= 0.5 sec Importance Factor: le=1.0 (commercial building) c) The architect has decided to eliminate the moment frames because the deep beams along the building perimeter reduce window openings. Determine the percent increase in base shear if the moment frames were eliminated and lateral resistance was provided with only a special reinforced concrete shear wall system (Type B-4 in ASCE Table 12.2-1)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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part b, c please
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