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Title |
A Study on Algorithm for Determining Seismic Improvement Priority of Highway Bridges
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Authors |
김형규(Hyung-Gyu Kim) ; 장일영(Il-Young Jang) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.6.138 |
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Keywords |
내진보강 우선순위 ; 내진 ; 우선순위 ; 알고리즘 Seismic retrofit priority ; Seismicity ; Priority Ranking ; Algorithm |
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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 safe zone for earthquakes and that we need to be prepared for them. In addition, bridges built prior to the introduction of seismic design concepts remain without adequate seismic reinforcement measures, and earthquake reinforcement should be performed efficiently considering economic and structural safety. Preliminary assessment of seismic performance of existing bridges is divided into four seismic groups, taking into account seismicity, vulnerability and 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, importance coefficient of the bridge including the zone coefficient and the Importance, vulnerability index of the bridge including the soil condition and the elapsed years, detail coefficient of the bridge including the superstructure form, the span length, the width, the height, the design load, and the daily traffic volume. The calculated score items will be weighted and grouped according to the results. Using this, a simpler and more efficient algorithm was proposed to determine the priority of seismic reinforcement on a bridge.
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