Mangkoesoebroto, S.P.; Yasa, A.; Zulkifli, E. Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures. Jurnal Teknik Sipil 2023, 30, 33–44, doi:10.5614/jts.2023.30.1.5.
Mangkoesoebroto, S.P.; Yasa, A.; Zulkifli, E. Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures. Jurnal Teknik Sipil 2023, 30, 33–44, doi:10.5614/jts.2023.30.1.5.
Mangkoesoebroto, S.P.; Yasa, A.; Zulkifli, E. Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures. Jurnal Teknik Sipil 2023, 30, 33–44, doi:10.5614/jts.2023.30.1.5.
Mangkoesoebroto, S.P.; Yasa, A.; Zulkifli, E. Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures. Jurnal Teknik Sipil 2023, 30, 33–44, doi:10.5614/jts.2023.30.1.5.
Abstract
This study introduces a new procedure for three-component spectral matching of seismic ground acceleration records. The procedure involves preserving the phase angle and varying the Fourier amplitudes to match the spectra of the recorded records with a provided target spectrum that represents the spectral values of ground motions in three orthogonal directions. Several three-component recorded records were matched against two target response spectra to test the method. An accurate convergence was achieved in the velocity and displacement records. In addition, the scales among the components’ magnitude were maintained, creating realistic three-component ground motions. Such ground motion inputs are important to qualify critical structures sensitive to three-component motions. Our proposed procedure is novel because the present practices are mostly created based on one-component ground motions.
Keywords
spectral matching; three components; component scales; phase angle; critical structures
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
