Though the real seismic waves are full three dimensional and incoming at an arbitrary angle, currently, only vertically propagating shear waves are considered on seismic numerical analysis due to the various limitations such as lack of knowledge, and expensive computation costs.
Using the Domain Reduction Method (DRM) developed by Bielak et al. (2003) and Yoshimura et al. (2003), large domain problems can be reduced to manageable size one and also, inclined wave propagation in three dimensional space can be considered.
However, no verification has been made for the domain reduction methods with realistic three dimensional input waves. Thus, herein, three different approaches such as analytic solution, integral equation, and numerical solution using FEM are made to generate seismic input motion. Then, for verification purpose, generated motions are applied on finite element models and DRM finite element analyses are performed.
Generation of seismic input motion is conducted by developed codes in here and using frequency wavenumber integration equation program fk developed by Zhu and Rivera (2002). The finite element analyses using the generated input motions are performed by NRC ESSI simulator (Jeremic, 2013).
|Commitee:||Kunnath, Sashi, Sukumar, N.|
|School:||University of California, Davis|
|Department:||Civil and Environmental Engineering|
|School Location:||United States -- California|
|Source:||MAI 52/03M(E), Masters Abstracts International|
|Subjects:||Geotechnology, Civil engineering, Environmental engineering|
|Keywords:||Domain reduction method, Finite element method, Inclined wave propagation, Seismic motion input, Verification|
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