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매개변수해석을 통한 신개념 복공판의 최적단면 제안

Optimized Cross-section Suggestion of a New Concept Lining Board through Parametric Study

  • 김춘호 (중부대학교 토목공학과) ;
  • 이성태 (인하공업전문대학 토목환경과) ;
  • 김인식 (중부대학교 토목공학과) ;
  • 심태무 ((주)하이드로 코리아 기술연구소)
  • 투고 : 2014.10.17
  • 심사 : 2014.11.10
  • 발행 : 2015.03.30

초록

이 논문에서는 기존 복공판의 단점들을 극복하기 위해 새로이 제안된 신개념 복공판에 대한 안전성 검토와 성능을 검증하기 위한 매개변수해석을 실시했다. 고려된 모든 해석변수와 단부 보강위치 및 크레인 하중에 대해 계산된 강재의 응력이 허용응력 이내의 값을 보여주어 모든 경우가 구조적으로 안전한 복공판인 것으로 확인되었다. 구조적 안정성과 경제성을 고려했을 때 최적의 복공판은 판의 크기가 크고 두께가 얇은 "$3,000{\times}2,000{\times}6t$"로 결정하였으며 보강은 단부 내측을 보강하는 것이 가장 좋을 것으로 판단되었다. 또한, 기존 복공판 대비 단위면적당 강재량을 36%정도 감소시켜 경제적으로도 우수하며, 복공판 개소가 적어 시공속도가 빠르기 때문에 지하철 및 지하차도 복공구조체에 적용이 가능할 것으로 판단된다.

In this paper, to overcome disadvantages of existing lining boards, the parametric studies to evaluate safety and verify performance of newly suggested lining boards was performed. Since the calculated stresses of steel plates are lower than the allowable stress for considered all analytical variables, end reinforcement locations, and crane rail loads, it can be concluded that the suggested lining board is structurally safe. Where, "$3,000{\times}2,000{\times}6t$" was select to be optimized cross-section and the reinforcement from the end to 200mm to the internal direction looks like the best case. In addition, the suggested lining board is economical since the steel amount per unit area compared to existing lining board is reduced by 36% and it can apply to the lining structural system of subway and underpass since construction speed is past due to the less installation number of lining boards.

키워드

참고문헌

  1. Kim, C. H., Yi, S. T., and Kim, I. S. (2015), Flexural Test and Structural Analysis to Develope a Lining Board of New-Concept, Journal of the Korea Institute for Structural Maintenance and Inspection, (accepted).
  2. Kim, D. H., Kim, Y. S. (2004), A Comparative Analysis of Existing Channel-Type Lining Board and New-Type lining Board Models, Journal of the Korean society of safety, 19(3), 78-83 (in Korean).
  3. Kim, I. T., Kim, D. W., Choi, H. S., Cheung, J. H. (2009), A Preliminary Study on the Reused Channel-Type Lining Board with Corrosion-Damage, Journal of the Korea Institute for Structural Maintenance and Inspection, 13(4), 170-179 (in Korean).
  4. Korean Highway Bridge Design Code (2010), Section 2.1, Load, 6-9 (in Korean).
  5. Lee, S. S., Kim, D. H. (2005), An Experimental Study on the Fatigue Behavior of H & Channel-Type Lining Board, Journal of the Korea Institute for Structural Maintenance and Inspection, 9(4), 209-216 (in Korean).
  6. Yoon, W. H., Chung, J. S., Lee, J. S., Yoon, Y. S., Yang, S. D. (2012), A Case study on Effect of Compositeness for Temporary Bridge Integrated Lining Board and Girder, Journal of the Korean society of safety, 27(2), 34-41 (in Korean). https://doi.org/10.14346/JKOSOS.2012.27.2.034

피인용 문헌

  1. Flexural Test and Structural Analysis to Develope a Lining Board of New-Concept vol.19, pp.4, 2015, https://doi.org/10.11112/jksmi.2015.19.4.010