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An Application of Dynamic Loading Test of Precast Module Concrete Decks

프리캐스트 모듈 바닥의 동하중 재하시험

  • Sung, Ikhyun (Department of Civil Engineering, Hanseo University)
  • Received : 2017.02.08
  • Accepted : 2017.03.20
  • Published : 2017.03.31

Abstract

In this study, the panel joint behavior by the vehicle load moving on precast panel is analyzed. The frame was made for loading and the behavior was determined by using each measuring device. The static response of the panel was examined and compared with the theoretical value, and it was found that the characteristics were very reasonable. In addition, acceleration, velocity, and displacement were measured for dynamic impact evaluation, and the characteristics of moving load were analyzed in the test. The vibration frequency of the panel was measured for the dynamic response by the moving load, and the vibration characteristic was considered to be sensitive to the range of the load. As a result, it is considered that the dynamic response of the connection part should be careful in design because the characteristics are different according to the connection method.

이 논문에서는 프리캐스트 바닥판 위를 이동하는 차량하중에 의한 바닥판 접합거동 특성을 분석하였다. 하중 재하를 위하여 프레임을 제작하였고 각 측정 장치를 활용하여 거동을 파악하였다. 바닥판의 정적응답을 검토하여 이론값과 비교하였고 그 특성은 매우 합리적임을 알 수 있었다. 또한, 동적영향 평가를 위하여 가속도, 속도 및 변위를 측정하여 시험에서 이동하중의 특성을 분석하였다. 이동하중에 의한 동적응답을 위하여 바닥판 진동수를 측정한 결과 하중 범위 변화에 따라 진동 특성도 민감하게 반응하는 것으로 나타났다. 결과적으로 연결부의 동적 응답은 연결방법에 따라 특성이 다르므로 설계에 주의를 기울여야 할 것으로 판단된다.

Keywords

References

  1. Culmo, P. M. (2000), Rapid Bridge Deck Replacement Using Full Depth Precast Concrete Slabs, Paper No., TRB00-1220.
  2. Talley, N., (1998), Design of Modern Highway Bridges, McGraw-Hill, New York.
  3. Willy, F. Grimmke, Kyle, M. Vanderwater, (2004), Design, Fabrication, and Erection of Precast Concrete Deck Panels, Washington County.
  4. AASHTO LRFD Bridge Design Specification (1998),Live Load Distribution Factor for a Three Span Continuous Precast Girder Bridge, 2nd Edition.
  5. Chang, P. S., Chang, S. S., (2001) Continuous Composite Bridges with Precast Decks, Steel Stuctures I ,pp. 123-132.
  6. Virginia Transportation Research Council (2004), Structural Load Testing and Flexure analysis of the Route 701 Bridge I Louisa county, virginia, VTRC 04-R12.

Cited by

  1. 교량 내하력 평가를 위한 정적재하시험 및 동적재하시험 특성 vol.16, pp.4, 2017, https://doi.org/10.15683/kosdi.2020.12.31.638