Thạc Sĩ A Study of Ground Motion Scaling Methods for Three Dimensional Analysis of Building Systems

TABLE OF CONTENTS
Acknowledgements .i
Abstract . ii
List of Figures .vi
List of Tables x
1. Chapter 1 1
1.1. Motivation of study .1
1.2. Thesis objectives .2
1.3. Outline .3
2. Chapter 2 4
2.1. Code method .4
2.2. Sa(T1) method 5
2.3. Other methods .5
3. Chapter 3 7
3.1. Estimation of structure elastic peak responses from acceleration response
spectra using RSA and CQC combination rule .7
3.1.1. Estimation of peak base shear 8
3.1.2. Estimation of peak story displacement . 9
3.2. MMS procedures using elastic modal characteristics (Elastic-based MMS
methods) 10
3.2.1. Scaling factor for symmetric building cases 11
3.2.2. Scaling factor for asymmetric building cases . 11
iv
3.3. MMS procedures considering the effects of structural inelasticity (Inelasticbased
MMS methods) 12
4. Chapter 4 14
4.1. Ground motion ensemble 14
4.2. Example building 16
4.3. Evaluation of MMS, Code and Sa(T1) methods 19
4.3.1. Analysis procedures 19
4.3.2. Peak elastic demands 20
4.3.3. Peak inelastic demands . 22
4.4. Summary .24
5. Chapter 5 38
5.1. Example building 38
5.2. Evaluation of MMS, Code and Sa(T1) methods 38
5.2.1. Analysis procedure . 38
5.2.2. Peak elastic demands 39
5.2.3. Peak inelastic demands . 41
5.3. Summary .42
6. Chapter 6 54
6.1. Summary and relevant findings 54
6.1.1. The development of MMS methods for using in 3-D structures include
both symmetric and asymmetric ones . 54
6.1.2. The concept of incorporating inelastic structural parameters in
computing of scaling factors . 54
v
6.1.3. Evaluation of MMS methods 55
6.2. Limitations 55
6.3. Suggested researches 56
7. References .57
A Appendix A .61
A.1. Coefficient of variance (COV) 61
A.2. Normalized Root Mean Square Error (NRMSE) 62