Evaluation Method of the Limit State of Collapse for V for V for V for V for Viaduct Columns Subjected to Repetitive Seismicity iaduct Columns Subjected to Repetitive Seismicity iaduct Columns Subjected to Repetitive Seismicity iaduct Columns Subjected to Repetitive Seismicity iaduct Columns Subjected to Repetitive Seismicity earthquake wave of main quake and after quake and examined the dynamic behavior of RC columns. As a result, it is evident that even if seismic response of structures

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... s to the limit value of collapse in the current design standard, structures are not always collapsible, and even if structures prevented from collapsing in a major seismicity, structures may collapse after the quake depending on seismic characteristics. Therefore, we proposed a new verification method using the amplitude of response displacement for the safety performance.