| Title |
Evaluation of Design Response Spectrum in Sejong City Using Gyeongju and Pohang Type Seismic Waves |
| Authors |
오현주(Oh HyunJu);이성현(Lee SungHyun);박형(Park HyungChoon) |
| DOI |
https://doi.org/10.12652/Ksce.2024.44.4.0503 |
| Keywords |
지반응답해석;응답스펙트럼;설계응답스펙트럼;설계지진파 Ground response analysis;Response spectrum;Design response spectrum;Design seismic wave |
| Abstract |
In the seismic design standard, input waves for different levels of seismic performance are proposed in the form of design response spectra. At the time of establishing these standards, measured records of significant earthquakes that occurred domestically, such as the 2016 Gyeongju earthquake and the 2017 Pohang earthquake, were not included. Additionally, for the ground response analysis, shear wave velocities representing ground amplification characteristics were derived from the results of standard penetration tests (N-values) and applied in empirical formulas. This approach may not adequately capture sufficient information about the characteristics of domestic ground properties. Therefore, in this study, seismic records from the Gyeongju and Pohang earthquakes were modified to adjust the bedrock standard design response spectra. Ground response analyses were conducted using shear wave velocity profiles obtained from borehole tests in the Sejong City area. The shape of the response spectrum and ground amplification coefficient obtained from the ground response analysis were then compared with those from existing studies and seismic design standard. |