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Evaluation of the Structure Stability of a Plate Girder Bridge Using MIDAS Structure Analysis

MIDAS를 활용한 플레이트 거더교 구조 안정성 평가에 관한 연구

  • Received : 2013.12.31
  • Accepted : 2014.02.11
  • Published : 2014.04.01

Abstract

Recently, as a means of resolving the issue of legal liability in the event of an accident or a disaster, a wide variety of simulation techniques, such as structural and structure-fluid interaction analysis, have been used in the field of forensic engineering. The plate girder bridge discussed in this paper was being constructed between a pier and an abutment to expand an existing bridge, but an accident whereby the bridge overturned occurred at the end of the concrete laying process for a protective wall. This accident was caused by additional loads not being considered at the time of the design as well as the actual construction being different from the design. The additional loads ultimately generated a negative support force. In this study, we determined the cause of the accident by comparing the structural stability of the original design with that of the additional, non-conforming construction using MIDAS structural analysis.

최근에는 법공학 분야에 구조해석 및 구조-유동 연성해석을 이용한 다양한 시뮬레이션 기법을 활용하여 안전사고 및 재난사고에 대한 법적 책임문제를 해명하고, 보다 정확한 원인분석을 통해 원인을 규명하고 있는 추세이다. 본 연구에서 다룬 플레이트 거더교 사고는 교각과 교대 사이의 기존 교각에 대하여 확장 교각을 신설하던 중 방호벽 콘크리트 타설이 완료되는 시점에 전도 추락되어 발생되었다. 본 사고는 설계와 다른 시공 작업과 설계 시 고려되지 않은 추가 하중 등으로 인해 확장 교량에 부반력이 발생하여 구조적 불안정을 가져와 붕괴된 사고로 MIDAS 구조 해석을 통해 설계와 실제 시공 시 작업 하중에 대한 구조적 안정성을 비교 평가하여 정확한 공학적 사고의 원인을 규명하고자 한다.

Keywords

References

  1. Sam, B., 2007, "Forensic Engineering : Reduction of Risk Improving Technology," Engineering Failure Analysis, Vol. 14, pp. 1019-1037. https://doi.org/10.1016/j.engfailanal.2006.11.065
  2. Brian, H. and Mohamed, T. K., 2007, "Non-Destructive Testing Techniques for the Forensic Engineering Investigation of Reinforced Concrete Buildings," Forensic Science International, Vol. 167, pp. 167-172. https://doi.org/10.1016/j.forsciint.2006.06.065
  3. Kim, E. S., Kim, E., S., Kim, S., H., Kim, D., H. and Park, N., K., 2007, "Cause Analysis and Measure for Accidents of Door Detachment in Elevator Platform," Journal of the Korean Society of Safety, Vol. 22, No. 2, pp. 1-6.
  4. Kim, E., S., Kim, J., P., Park, N., K. and Kim, Y., H., 2008, "A Forensic Engineering Study on Bursting Accident of Composite Pressure Vessel in CNG BUS," Journal of the Korean Society of Safety, Vol. 23, No. 5, pp. 15-21.
  5. Kim, E., S., 2009, "A Study on Cause Analysis of the Crash for the Ski Lift," Journal of the Korean Society of Safety, Vol. 24, No. 2, pp. 13-16.
  6. Kim, E., S., Kim, J., H. and Kim, M., G., 2011, "Forensic Engineering Study on the Explosion Accidents Investigation of the Centrifugal Casting Machine using ADINA FSI," Journal of the Korean Society of Safety, Vol. 26, No. 4, pp. 27-33.
  7. Kim, E. S. and Kim, J. H., 2013, "Evaluation of Buckling in Prestressed Composite Truss Girder using ADINA Structure Analysis," Trans. Korean Soc. Mech. Eng. A., Vol.37, No.11, pp. 1415-1421. https://doi.org/10.3795/KSME-A.2013.37.11.1415