지하철 역사구조물 건전성 평가기법개발을 위한 수치해석연구

초록

The station structures in Seoul, which have been being operated since the 1970s, are especially vulnerable to even the medium-level earthquake occurred at Pyungchang city, and they could be also damaged by long-term internal or external vibrations such as ambient train vibrations. For these reason, since 2007, Korean government has made an effort to develop the structural health-monitoring system of station structures, which can monitor the vulnerable structural members in real-time and can evaluate the health-state of station structures as well. The structural health-monitoring system allows to be reinforced the vulnerable structural members timely then, it is expected that the preservation of national properties such as station structures and the safety of passengers are guaranteed. For the evaluation technique on the health-state of station structures from the real-time sensing data measured in the field station structures, authors carried out the numerical simulations to develop the algorithm which can monitor the dynamic behavior of structures based on the strain responses. The numerical results are summarized and its applications are discussed briefly in this paper.