A five story auditorium building (with occupant load of 300) in Calstate LA campus has a steel special moment-resisting frame for a lateral force resisting system. The soil profile is Site Class D. Based on USGS map, spectral response acceleration parameters, Ss (short period) and S1 (long period) are 2.4g and 0.8g, respectively. 1. Determine site coefficients (modification factors) Fa and Fv 2. Determine MCE spectral response acceleration parameters, Sms and Sm1, adjusted for soil class effect 3. Determine design spectral response acceleration parameters, Sds and Sd1. 4. Find the approximate fundamental period of structure based on IBC 2018 method. 5. Determine base shear, V of the building. 6. Find vertical distribution exponent, k. Refer to 3/22/21 lecture) 7. Determine vertical distribution factor Cvx and lateral seismic force Fx at each level. (Example is included in 3/22/21 lecture) The following information is given. 2,500 kips R 8 30' 30' 3 Level Story Weight Ie 1.25 5th 384 k %3D 4th 500 k Зrd 511 k 2nd 540 k 1st 565 k 81
A five story auditorium building (with occupant load of 300) in Calstate LA campus has a steel special moment-resisting frame for a lateral force resisting system. The soil profile is Site Class D. Based on USGS map, spectral response acceleration parameters, Ss (short period) and S1 (long period) are 2.4g and 0.8g, respectively. 1. Determine site coefficients (modification factors) Fa and Fv 2. Determine MCE spectral response acceleration parameters, Sms and Sm1, adjusted for soil class effect 3. Determine design spectral response acceleration parameters, Sds and Sd1. 4. Find the approximate fundamental period of structure based on IBC 2018 method. 5. Determine base shear, V of the building. 6. Find vertical distribution exponent, k. Refer to 3/22/21 lecture) 7. Determine vertical distribution factor Cvx and lateral seismic force Fx at each level. (Example is included in 3/22/21 lecture) The following information is given. 2,500 kips R 8 30' 30' 3 Level Story Weight Ie 1.25 5th 384 k %3D 4th 500 k Зrd 511 k 2nd 540 k 1st 565 k 81
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A five story auditorium building (with occupant load of 300) in Calstate LA campus has a steel
special moment-resisting frame for a lateral force resisting system. The soil profile is Site Class
D. Based on USGS map, spectral response acceleration parameters, Ss (short period) and S1
(long period) are 2.4g and 0.8g, respectively.
1. Determine site coefficients (modification factors) Fa and Fv
2. Determine MCE spectral response acceleration parameters, Sms and Sm1, adjusted for
soil class effect
3. Determine design spectral response acceleration parameters, Sds and Sd1.
4. Find the approximate fundamental period of structure based on IBC 2018 method.
5. Determine base shear, V of the building.
6. Find vertical distribution exponent, k. Refer to 3/22/21 lecture)
7. Determine vertical distribution factor Cvx and lateral seismic force Fx at each level.
(Example is included in 3/22/21 lecture)
The following information is given.
2,500 kips
R
8.
30'
30'
= 3
Level
Story Weight
Ie
1.25
5th
384 k
%3D
4th
500 k
Зrd
511 k
2nd
540 k
1st
565 k
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