DOI QR코드

DOI QR Code

A Proposal for Improved Safety Assessment Procedure of Corrugated Steel Plate Structures Using Measured Displacements

파형강판 구조물의 내공변위를 활용한 개선된 안전도 평가 절차 제안

  • 전세진 (아주대학교 건설시스템공학과) ;
  • 이병주 (한국도로공사 도로교통연구원 구조물연구실)
  • Received : 2019.11.01
  • Accepted : 2020.01.29
  • Published : 2020.02.01

Abstract

A systematic approach to assess the safety of corrugated steel plate structures has not been established yet. Therefore, an improved safety assessment procedure was proposed in this study by considering the characteristics of corrugated steel plate structures in which the dead load of backfill soil is dominant and the live load effect is minimized. The proposed procedure can consider the combined effect of axial force and bending moment on the safety, based on the Soil-Culvert Interaction (SCI) method, and can differentiate the maintenance scheme according to the calculated plasticity index. There is also an advantage in enhancing the accuracy of assessment, utilizing the measured displacements. Furthermore, improved methods were proposed by discussing various ways for reasonably improving the proposed assessment procedure. The safety of an actual structure and a full-scale test specimen was assessed by applying the proposed procedure. The conventional assessment procedure significantly overestimated the load-carrying capacity, whereas the proposed procedure resulted in a reasonable level of safety. Therefore, the procedure proposed in this study is expected to contribute to the establishment of proper maintenance plan such as the quantitative condition assessment and strengthening of corrugated steel plate structure.

파형강판 구조물의 안전도를 평가할 수 있는 체계적인 방법은 아직까지 정립되어 있지 않은 실정이다. 따라서 이 연구에서는 뒤채움 흙의 고정하중이 지배적이고 활하중 효과는 매우 작은 파형강판 구조물의 특성을 고려하여 개선된 안전도 평가 절차를 제안하였다. 제안된 절차는 Soil-Culvert Interaction (SCI) 방법에 기초하여 축력과 휨모멘트의 복합작용이 안전도에 미치는 영향을 고려할 수 있고, 산정된 소성지수에 따라 유지관리 방안을 차별화할 수 있으며, 내공변위 계측값을 활용하여 평가의 정밀도를 더욱 높일 수 있다는 장점이 있다. 또한 제안된 평가 절차를 합리적으로 개선할 수 있는 다양한 방안을 논의하여 개선된 방법을 제안하였다. 제안된 절차를 적용하여 실구조물 및 실대형 실험체의 안전도를 평가하였다. 기존의 교량 내하력 평가 방법은 내하력을 크게 과대평가한 반면 제안된 방법은 합리적인 수준의 안전도를 산출하였다. 따라서 본 연구에서 제안된 절차는 파형강판 구조물의 정량화된 상태 평가 및 보강 등 적절한 유지관리 방안 수립에 기여할 수 있을 것으로 기대된다.

Keywords

References

  1. American Association of State Highway and Transportation Officials (AASHTO) (2017). AASHTO LRFD bridge design specifications (8th Ed.), AASHTO, Washington, D.C.
  2. American Iron and Steel Institute (AISI) (2002). Handbook of steel drainage & highway construction products (2nd Canadian Ed.), AISI, Washington, D.C.
  3. American Society for Testing and Materials (ASTM) (2017). Standard practice for structural design of corrugated steel pipe, pipe-arches, and arches for storm and sanitary sewers and other buried applications (ASTM A796/A796M-17a), ASTM, West Conshohocken, Pennsylvania.
  4. Beben, D. and Manko, Z. (2008). "Static load tests of a corrugated steel plate arch with relieving slab." Journal of Bridge Engineering, ASCE, Vol. 13, No. 4, pp. 362-376. https://doi.org/10.1061/(ASCE)1084-0702(2008)13:4(362)
  5. Canadian Standards Association (CSA) (2006). Canadian highway bridge design code (CHBDC), CSA, Toronto, Ontario, Canada.
  6. Daewoo Engineering & Construction and Ajou University (2017). Safety assessment, repair and strengthening method of corrugated steel plate structures, Korea Expressway Corporation (KEC) Research Institute (in Korean).
  7. Duncan, J. M. (1978). "Soil-culvert interaction method for design of metal culverts." Transportation Research Record, TRB, Vol. 678, pp. 53-59.
  8. Federal Highway Administration (FHWA) (1986). Culvert inspection manual, FHWA-IP-86-2, FHWA, Washington, D.C.
  9. Kim, K. S., Yeau, K. Y., Park, Y. H., Park, S. I. and Kim, S. H. (2010). "Case study of stability analysis of deformed circular corrugatedmetal culvert." Proc. of KSCE 2010 Convention, Korean Society of Civil Engineers, pp. 2188-2191 (in Korean).
  10. Kim, S. H., Jeon, S. J., Kim, I. G. and Lee, B. J. (2018). "Analytical study on structural behavior of bolted connections in corrugated steel plate structures." Journal of the Korean Society of Hazard Mitigation, KSHM, Vol. 18, No. 7, pp. 345-357 (in Korean). https://doi.org/10.9798/KOSHAM.2018.18.7.345
  11. Korea Concrete Institute (KCI) (2010). Safety assessment criteria and examples for concrete bridges in service, KCI (in Korean).
  12. Korea Expressway Corporation (KEC) Research Institute (2001). Guidelines of design and construction of soil-steel structures, KEC Research Institute (in Korean).
  13. Korea Expressway Corporation (KEC) Research Institute (2010). Revision of design guidelines of soil-steel bridge and suggestion of maintenance method, KEC Research Institute (in Korean).
  14. Korea Road and Transportation Association (KRTA) (2010). Design code for highway bridges, KRTA (in Korean).
  15. Korea Road and Transportation Association (KRTA) (2015). Design code for highway bridges (Limit state design), KRTA (in Korean).
  16. Korean Agency for Technology and Standards (KATS) (2017). Corrugated steel pipes and sections (KS D 3590), Korean Standards Association (KSA) (in Korean).
  17. Korean Society of Steel Construction (KSSC) (2014). Korean steel structure design code (Load and resistance factored design), KSSC (in Korean).
  18. Lee, B. J., Yoon, J. Y. and Shim, C. S. (2015). "Deformation measurement of corrugated steel plate culvert using laser scanning." Proc. of the Korea Concrete Institute, Korea Concrete Institute, Vol. 27, No. 1, pp. 281-282 (in Korean).
  19. Lee, B. J., Yoon, J. Y., Nam, M. S. and Park, Y. H. (2014). "Development of performance evaluation method for structures based on 3D geometric information and image processing." Magazine of the Korea Institute for Structural Maintenance and Inspection, KSMI, Vol. 18, No. 2, pp. 17-25 (in Korean).
  20. Manko, Z. and Beben, D. (2005). "Static load tests of a road bridge with a flexible structure made from Super Cor steel corrugated plates." Journal of Bridge Engineering, ASCE, Vol. 10, No. 5, pp. 604-621. https://doi.org/10.1061/(ASCE)1084-0702(2005)10:5(604)
  21. MIDAS Information Technology Co., Ltd. (2019). MIDAS information technology Co., Ltd., Available at: http://www.midasit.com (Accessed: December 31, 2019).
  22. Min, G. H., Lee, B. J. and Kim, I. B. (2017). "Behavior characteristic analysis of corrugated steel structures by load test." Proc. of the Korea Concrete Institute, Korea Concrete Institute, Vol. 29, No. 1, pp. 287-288 (in Korean).
  23. Ministry of Land, Transport and Maritime Affairs (MOLTMA) and Korea Infrastructure Safety & Technology Corporation (KISTEC) (2012). Guidelines for safety inspection and detailed safety assessment (Bridges), MOLTMA and KISTEC (in Korean).
  24. Ontario Ministry of Transportation (1983). Ontario highway bridge design code (OHBDC), Ontario Ministry of Transportation, Toronto, Ontario, Canada.
  25. Sezen, H., Fox, P. P. and Yeau, K. Y. (2009). Verification of ODOT's load rating analysis programs for metal pipe and arch culverts, Ohio Department of Transportation, Columbus, Ohio.
  26. Spangler, M. G. (1941). The structural design of flexible pipe culverts, Bulletin 153, Iowa Engineering Experiment Station, Iowa State College of Agriculture and Mechanic Arts, Ames, Iowa.
  27. Transportation Research Board (TRB) (2002). Recommended specifications for large-span culverts, National Cooperative Highway Research Program (NCHRP) Report 473, TRB, Washington, D.C.
  28. Walton, H. J., Davids, W. G., Landon, M. E. and Clapp, J. D. (2016). "Simulation of buried arch bridge response to backfilling and live loading." Journal of Bridge Engineering, ASCE, Vol. 21, No. 9, 04016052. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000893
  29. White, D. W. and Clarke, M. J. (1997). "Design of beam-columns in steel frames. II: Comparison of standards." Journal of Structural Engineering, ASCE, Vol. 123, No. 12, pp. 1565-1575. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:12(1565)
  30. Yeau, K. Y. and Sezen, H. (2012). "Load-rating procedures and performance evaluation of metal culverts." Journal of Bridge Engineering, ASCE, Vol. 17, No. 1, pp. 71-80. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000213
  31. Yeau, K. Y., Kim, K. S., Lee, S. R. and Park, Y. H. (2010). "Inspection of in-service corrugated steel culverts." Proc. of KSCE 2010 Convention, Korean Society of Civil Engineers, pp. 449-452 (in Korean).