도로교 내진보강 우선순위 결정을 위한 알고리즘에 관한 연구

Abstract

With the recent series of damage caused by earthquakes in Korea, such as Gyeongju and Pohang, we know that Korea is no longer a safezone for earthquakes and that we need to be prepared for them. In addition, bridges built prior to the introduction of seismic design concepts remainwithout adequate seismic reinforcement measures, and earthquake reinforcement should be performed efficiently considering economic and structuralsafety. Preliminary assessment of seismic performance of existing bridges is divided into four seismic groups, taking into account seismicity, vulnerabilityand Impact, considering the magnitude of the existing bridge's seismic, and prioritization for further evaluation of seismic performance. In this study,unlike the existing anti-seismic reinforcement priority method, scores are calculated based on the seismic design criteria applied to bridges, importancecoefficient of the bridge including the zone coefficient and the Importance, vulnerability index of the bridge including the soil condition and the elapsedyears, detail coefficient of the bridge including the superstructure form, the span length, the width, the height, the design load, and the daily trafficvolume. The calculated score items will be weighted and grouped according to the results. Using this, a simpler and more efficient algorithm was proposedto determine the priority of seismic reinforcement on a bridge.