Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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A Discussion on the Definitions of Seismic Coefficient for Gravity Quay Wall in Korea

국내 중력식 안벽의 수평지진계수 산정 방법에 대한 고찰

  • Received : 2016.10.04
  • Accepted : 2016.12.14
  • Published : 2017.03.01
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Abstract

Pseudo-static approach has been conventionally applied for the design of gravity quay walls. In this method, the decision to select an appropriate seismic coefficient ($k_h$) is an important one, since $k_h$ is a key variable for computing an equivalent pseudo-static inertia force. Nonetheless, there is no unified standard for defining $k_h$. Likewise, port structure designers in Korea have a difficulty in choosing an appropriate $k_h$ definition, as there are conflicts in how $k_h$ is defined between the existing seismic code of port structures and the proposed new one. In this research, various seismic design codes for port structures were analyzed to compare the definitions of the seismic coefficient. The results were used for the proposing a unified seismic coefficient definition. Further, two dynamic centrifuge tests were performed with different wall heights (5 m, 15 m) to clarify the reference point of peak acceleration used in determination of $k_h$ according to the wall height. Results from dynamic centrifuge experiments showed that correction factors for the peak ground acceleration considering both the wall height and allowable displacement are needed to calculate $k_h$.

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References

  1. Ministry of Construction and Transportation. Research of Seismic Design Criterea (II). Earthquake Engineering Society of Korea. c1997.
  2. Ministry of Oceans and Fisheries. Seismic Design Standards of Harbor and Port. Earthquake Engineering Society of Korea. c1999.
  3. Seo HY, Park KS, Kim IH, Kim DS. A discussion on the improvement of seismic design criteria of infrastructures. Journal of the Earth quake Engineering Society of Korea. 2014;18(5):231-240. https://doi.org/10.5000/EESK.2014.18.5.231
  4. Jo SB, Ha JG, Lee JS, Kim DS. A Discussion on the Improvement of Pseudo-Static Seismic Design Criteria of Retaining Wall in Domestic. Journal of the Earthquake Engineering Society of Korea. 2015; 19(2):45-53. https://doi.org/10.5000/EESK.2015.19.2.045
  5. Ministry of Land, Transport and Maritime Affairs. Seismic Performance evaluation & improvement revision of existing structures (Harbors). Korea Infrastructures Safety and Technology Corporation. c2012.
  6. International Navigation Association. Seismic Design Guidelines for Port Structures. c2001.
  7. Noda S, Uwabe T, Chiba T. Relation between seismic coefficient and ground acceleration for gravity quay wall. Report of Port and Harbour Research Institute. 1975;14(4):67-111.
  8. Ministry of Transport. Technical standards for Ports and Harbour Facilities in Japan. c1999 translated version of 港灣の施設物の技術 上の基準‧同解說(日本港灣協會, 1999)
  9. Comite Europeen de Normalisation. Eurocode 8: Design of Structures for Earthquake Resistance. Part 5: Foundations, Retaining Structures. geotechnical Aspects. CEN, Brussels. c2004.
  10. Overseas Coastal Area Development institute of japan. Technical Standards and Commentaries for Port and Harbour Facilities in Japan. c2009.
  11. Kramer, Steven L. Geotechnical Earthquake Engineering. Pearson Education India. 1996;466-505.
  12. Jo SB, Ha JG, Yoo MT, Choo YW, Kim DS. Seismic behavior of an inverted T-shape flexible retaining wall via dynamic centrifuge tests. Bulletin of earthquake engineering. 2014;12(2):961-980. https://doi.org/10.1007/s10518-013-9558-9
  13. Kim SR, Jang IS, Chung CK, Kim MM. Evaluation of Seismic Displacements of Quay Walls. Soil Dynamics and Earthquake Engineering. 2005;25:451-459. https://doi.org/10.1016/j.soildyn.2005.03.002
  14. Kim DS, Kim NR, Choo YW, Cho GC. A newly developed state-ofthe- art geotechnical centrifuge in Korea. KSCE Journal of Civil Engineering. 2013;17(1):77-84. https://doi.org/10.1007/s12205-013-1350-5
  15. Lee SH, Choo YW, Kim DS. Performance of an Equivalent Shear Beam (ESB) Model Container for Dynamic Geotechnical Centrifuge Tests. Soil Dynamics and Earthquake Engineering. 2013;44:102-114. https://doi.org/10.1016/j.soildyn.2012.09.008
  16. Zeng X. Seismic Response of Gravity Quay Walls. I: centrifuge modeling. Journal of geotechnical and geoenvironmental engineering. 1998; 124(5):406-417. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:5(406)