Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Response Investigation of Traffic Signal-Supporting Structures Including Soil-Foundation Effects

지반-기초 영향을 고려한 교통신호등주의 지진응답 분석

  • Kim, Taehyeon (Department of Civil Engineering, Jeonbuk National University) ;
  • Jeon, Jong-Su (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Roh, Hwasung (Department of Civil Engineering, Jeonbuk National University)
  • 김태현 (전북대학교 토목공학과) ;
  • 전종수 (한양대학교 건설환경공학과) ;
  • 노화성 (전북대학교 토목공학과)
  • Received : 2023.07.26
  • Accepted : 2023.08.17
  • Published : 2023.11.01
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Abstract

This study analyzes the seismic response of traffic light poles, considering soil-foundation effects through nonlinear static and time history analyses. Two poles are investigated, uni-directional and bi-directional, each with 9 m mast arms. Finite element models incorporate the poles, soil, and concrete foundations for analysis. Results show that the initial stiffness of the traffic light poles decreases by approximately 38% due to soil effects, and the drift ratio at which their nonlinear behavior occurs is 77% of scenarios without considering soil effects. The maximum acceleration response increases by about 82% for uni-directional poles and 73% for bi-directional poles, while displacement response increases by approximately 10% for uni-directional and 16% for bi-directional poles when considering soil-foundation effects. Additionally, increasing ground motion intensity reduces soil restraints, making significant rotational displacement the dominant response mechanism over flexural displacement for the traffic light poles. These findings underscore the importance of considering soil-foundation interactions in analyzing the seismic behavior of traffic light poles and provide valuable insights to enhance their seismic resilience and safety.

Keywords

References

  1. Caracogila L, Jones NP. Numerical and experimental study of vibration mitigation for highway light poles. Engineering Structures. 2007; 29(5):821-831. https://doi.org/10.1016/j.engstruct.2006.06.023
  2. Sherman RJ, Connor RJ. Development of a fatigue design load for high-mast lighting towers. Journal of Structural Engineering. 2019;145(1):4018228.
  3. Magenes L. Fatigue assessment of high mast illumination polesusing field measurements. Ph.D. dissertation, Dept. of Civil and Architectural Engineering, Univ. of Texas at Austin, c2011.
  4. Connor RJ, Colicott SH, Deschepper AM, Sherman RJ, Ocampo JA. Development of fatigue loading and design methodology for high-mast light poles. 2012; NCHRP Rep. No. 718. Washington, DC:Transportation Research Board.
  5. Izuno K, Tsushima Y, Iida T, Kawano K. Dynamic response of highway bridge-lighting pole system for level 1 earthquake. Journal of Applied Mechanics. 2018;11:1039-1046. https://doi.org/10.2208/journalam.11.1039
  6. Salib S. Dynamic Behaviour and seismic response of FRP light poles in high seismic zones. 2012; Corpus ID: 216051321.
  7. Siringoringo DM, Fujino Y, Nagasaki A, Matsubara T. Seismic performance evaluation of existing light poles on elevated highway bridges. Sturucture and Infrastructure Engineering. 2020;13(5): 649-663. https://doi.org/10.1080/15732479.2020.1760894
  8. Kim TH, Hong SH, Oh JW, Roh HS. Investigation of Seismic Response of Single- and Bi-Directional Traffic Light Poles. Earthquake Engineering. 2022;26(6):219-226. https://doi.org/10.5000/EESK.2022.26.6.219
  9. Korea Road Traffic Facility Industry Cooperative. Multi-Traffic Signal Structure. c2018.
  10. Seoul Metropolitan Government Transportation Management Division. Traffic Signal Supporting Structures Stability Assessment. c2017.
  11. ABAQUS Version 6.6 Documentation. ABAQUS/CAE User's Manual 15.14.1.2009.
  12. Lee EH, Kim JM, Jung DR, Joo KH. Evaluation of the Response of BRM Analysis with Spring-Damper Absorbing Boundary Condition according to modelling Extent of FE Region for the Nonlinear SSI Analysis. Computational Structural Engineering Institute of Korea. 2016;29(6):499-512. https://doi.org/10.7734/COSEIK.2016.29.6.499
  13. Due XI, Zhao M, Wang JT. A Stress Artificial Boundary in FEA for Near-Field Wave Problem. Chinese Journal of Theoritical and Applied Mechanics. 2006;38(1):49-56.
  14. Zhao M. Explicit Finite Element Artificial Boundary Scheme for Transient Scalar Waves in Two Dimensional Unbounded Waveguide. International Journal for Numerical Methods in Engineering. 2011; 11(87):1074-1104. https://doi.org/10.1002/nme.3147
  15. Liu J, Lu YA. Direct Method for Analysis of Dynamic Soil-Structure Interaction Based on Interface Idea. Developments in Geotechnical Engineering. 2006;261-276.
  16. Conniff DE, Kiousis PD. Elastoplastic Medium for Foundation Settlements and Monotonic Soil-Structure Interaction under Combined Loadings. International Journal for Numerical and Analytical Methods in Geomechanics. 2007;31(6):789-807. https://doi.org/10.1002/nag.556
  17. Von EO, Pais AL, Kausel E. Some Observation on Time Domain and Frequency Domain Boundary Elements. International Journal for Numerical Methods in Engineering. 2005;29:785-800.
  18. Korean National Police Agency. Traffic Signal Installation Manual. c2020.
  19. Yoshinaka R. Lateral coefficient of subgrade reaction. Civil Engineering Journal. 1968;10(1):32-37.
  20. Dunham JW. Pile foundation for buildings. Proc. ASCE, Soil Mechanics and Foundations Division; 1958;80(285).
  21. Gang B, Hwang B, Cho W. Empirical Estimations of Soil Constants Using Standard Penetration Test N Value. Journal of the Korean Geo-Environmental Society. 2018;19(6):5-12.
  22. Hooman T, Mohammad TR. Three Dimensional Finite Element Modeling of Seismic Soil-Structure Interaction in Soft Soil. Computers and Geotechnics Engineering. 2014;60:9-19. https://doi.org/10.1016/j.compgeo.2014.03.014
  23. Uesugi M, Kishida H, Uchikawa Y. Friction Between Dry Sand and Concrete Under Monotonic and Repeated Loading. Japanese Society of Soil Mechanics and Foundation Engineering. 1990;30(1):115-128. https://doi.org/10.3208/sandf1972.30.115