Abstract
When an earthquake occurs, the behavior of the ground is significantly influenced by the seismic wave characteristics (waveform) and soil layer conditions. In local and international seismic design standards, it is recommended that the input seismic wave should correspond to the design response spectrum and reflect the fault characteristics. In this study, ground response analysis was performed to satisfy the seismic design standards using modified design seismic waves generated by the Pohang seismic waves measured at the bedrock location. The peak ground acceleration, ground amplification ratio, and natural period of Sejong-si for Pohang-type seismic waves were determined using the Sejong-si 120 site exploration results. From a plotted risk map, a map of floors that could experience relatively large seismic loads during an earthquake was determined. Based on the risk map plotted in this study, it is possible to prepare for earthquake damage in advance by identifying the degree of seismic damage to a structure when an earthquake occurs and selecting the building inspection or seismic reinforcement priority.
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