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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.

Keywords

Forensic Engineering;Plate Girder;Structure Analysis;Negative Reaction;Overturning

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