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 Frameand Special reinforced concrete shear wall (Type D-3)b) Calculate Seismic Base Shear (V) using the following ASCE 7 equations and building information:V = C, Wwhere Cs is the lesser ofAccelerations (USGS maps):SDs = 1.1SD1 = 0.6Cs=SDS(R/₂)and Cs=SD1. 1T. RBuilding Period: T= 0.5 secImportance Factor: le = 1.0 (commercial building)c) The architect has decided to eliminate the moment frames because the deep beams along the building perimeter reducewindow openings. Determine the percent increase in base shear if the moment frames were eliminated and lateralresistance was provided with only a special reinforced concrete shear wall system (Type B-4 in ASCE Table 12.2-1)

Story -5 Building weight - 100 kips To determine- 1) Response modification factor (R) for a) Dual…

2.8 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 and (R/₂) V=CW where C, is the lesser of Cs Accelerations (USGS maps): SDs = 1.1 SD1 = 0.6 = Cs = SD1. I T. R Building Period: T= 0.5 sec Importance Factor: le=1.0 (commercial building)

2.8 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 and (R/₂) V=CW where C, is the lesser of Cs Accelerations (USGS maps): SDs = 1.1 SD1 = 0.6 = Cs = SD1. I T. R Building Period: T= 0.5 sec Importance Factor: le=1.0 (commercial building)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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For each of the building properties listed below, identify which parameter from the base shear equations shall apply. Building occupancy and function Seismic Base Shear In accordance ASCE-7 code, buildings must be designed to withstand lateral forces that are generated during a severe earthquake. The minimum required design force is given in several equations. Design Base Shear, V= C, W Seismic response coefficient, C,, is the smaller value from two equations: In these equations: C₂ = C₂ < Sp! R Spy R Sor & Spare Seismic Acceleration Parameters from USGS maps is Importance Factor Tis Period of Vibration, (depends on building height & must be calculated) Ris Response Modification Factor from ASCE Table Wis the Effective Seismic Weight of the building. SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these
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For each of the building properties listed below, identify which parameter from the base shear equations shall apply. Story height (or distance from floor to floor) Seismic Base Shear In accordance ASCE-7 code, buildings must be designed to withstand lateral forces that are generated during a severe earthquake. The minimum required design force is given in several equations. Design Base Shear, V= C₂W Seismic response coefficient, C,, is the smaller value from two equations: In these equations: C₂ = Sor & Sare Seismic Acceleration Parameters from USGS maps Iis Importance Factor Spil TR Sp₂! Tis Period of Vibration, (depends on building height & must be calculated) Ris Response Modification Factor from ASCE Table Wis the Effective Seismic Weight of the building. SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these
or each of the building properties listed below, identify which parameter from the base shear equations shall apply. Building occupancy and function Question 6 options: SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these
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Single choice question : 8. Which of the following statements about the setting of seismic joints is incorrect （A）When the structure type of both sides is the same, the width of the seismic joint should be determined by the height of the lower houses on both sides（B）When the house height on both sides is the same, the width of the seismic joint should be determined by the structure type of a larger seismic joint as required（C）The width of the seismic joints is independent of the structural type of the house（D）The width of the seismic joints is related to the height of the house
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1.Explain the LRFD (Load and Resistance Factor Design) method.