Seismic Fragility Analysis of Curved Bridge Structure by Girder Section Shape

doi:10.15683/kosdi.2019.12.31.626

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2019 Vol.15, Issue 4 Preview Page Next Page

Research Article

Seismic Fragility Analysis of Curved Bridge Structure by Girder Section Shape 거더 단면형상 변화에 따른 곡선교량의 지진 취약도 분석: 전준태¹ㆍ주부석²*ㆍ손호영³
Juntai Jeon¹, Buseog Ju²*, Hoyoung Son³; ¹Professor, Department of Civil&Environmental Engineering, Inha Technical College, Incheon, Republic of Korea
²Professor, Department of Civil Engineering, Kyunghee University, Yongin, Republic of Korea
³Ph.D Candidate, Department of Civil Engineering, Kyunghee University, Yongin, Republic of Korea

31 December 2019. pp. 626-633

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Abstract

Purpose: The primery objecting of this paper is to explore the seismics fragility of curved bridge based on the change of girder section. Method: The cross section of the bridge structure was constructed with I, T, and Box shapes and then, in order to perform the seismic fragility 24 seismic ground motions were used, including Gyeongju Pohang Earthquake. Result: Fist, T-Shape of the bridge strucrue was much fragility in terms of the stress on girder section, in comparison to the other shapes. The seismic fragilies of the structures with respect to displacement(drift ratio), however, were shown simialr. Conclusion: In other to wvaluation the seismic fragility of curved structure using different girder shapes, analytical models of the structure were constructed and then, the probability failure of box-shape girder was shown lower probability. In further, Parametric studies of curved structures must be conducted.

Keywords

Curved Bridge

Seismic Fragility

Section Shape

Finite Element Model

Gyeongju and Pohang

연구목적 : 동일한 단면 2차 모멘트를 갖는 곡선 거더의 형상 변화에 따른 곡선 교량의 확률론적 안전성 평가인 지진 취약도 평가를 수행하고자 한다. 연구방법 : I, T, Box Shape 단면을 갖는 곡선 교량을 유한요소 모델로 구축하였으며 경주 및 포항지진을 포함하여 24개의 입력지진을 적용하여 지진 취약도 평가를 수행하였다. 연구결과 : 거더의 응력에 대한 지진 취약도의 경우 T-Shpae 거더에서 가장 큰 파괴확률이 나타났으며 수평변위에 대한 지진 취약도의 경우 3개의 곡선 교량에서 비슷하게 발생하는 것으로 나타났다. 결론 : 3개의 곡선 교량에 대한 지진 취약도 분석을 수행하였으며 비틀림 저항이 가장 큰 Box-Shape 거더의 파괴확률이 가장 낮은 것으로 나타났다. 추후 연구에서는 추가적인 매개변수를 고려하여 지진 취약도 평가를 수행하고자한다.

키워드

곡선교량

지진 취약도

단면형상

유한요소모델

경주 및 포항지진

References

ABAQU S Ver. 2017, Dassault Systems.
Dong, J., Sause, R. (2010). "Finite Element Analysis of Curved Steel Girder with Tubular Flange." Engineering Structures, Vol. 32, pp. 319-327.10.1016/j.engstruct.2009.09.018
Dutta, A. (1999). On Energy Based Seismic Analysis and Design of Highway Bridge. Ph.D. Thesis, State University of New York at Buffalo, USA.
Hwang, H., Liu, J.B., Chiu, Y.H. (2001). Seismic Fragility Analysis of Highway Bridge, Mid-America Earthquake Center Technical Report MAEC RR-4.
Jeon, J.T. (2018). "Seismic Performance Evaluation of Curved Bridge by Gyeong-Ju Earthquakes." Journal of the Society of Disaster Informantion, Vol. 14, No. 1, pp. 43-50.
Jeon, J.T., Ju, B.S., Son, H.Y. (2018). "Seismics Fragility Analysis of Curved Beam with I-Shape Section." Journal of the Korea Society of Disaster Informantion, Vol. 14, No. 3, pp. 379-386.
Kennedy, R.P., Ravindra, M.K. (1984). "Seismic Fragilities for Nuclear Power Plant Risk Studies." Nuclear Engineering and Design, Vol. 79, pp. 47-68.10.1016/0029-5493(84)90188-2
Kim, B.G., Sause, R. (2005). "High Performance Steel Girders with Tubular Flanges." International Journal of Steel Structure, Vol. 5, No. 3, pp. 253-263.
Lee, W.H., Jeon. J.T. (1993). "A Study on the Torsional Constant Ratio of Continuous Curved Girder Bridges by Transfer Matrix Method." Magazine and Journal of Korean Society of Steel Construction, Vol. 5, pp. 169-180.
Ministry of Land, Transport and Maritime Affairs (2012), Korean Highway Bridge Design Code.
Tanaka, S., Kameda, H., Nojima, N., Shunsyke, O. (2000). "Evaluation of Seismic Fragility for Highway Transportation Systems", World Conference on Earthquake Engineering, Vol. 4, pp. 1-6.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 15
No :4
Pages :626-633
DOI :https://doi.org/10.15683/kosdi.2019.12.31.626

[1] ABAQU S Ver. 2017, Dassault Systems.

[2] Dong, J., Sause, R. (2010). "Finite Element Analysis of Curved Steel Girder with Tubular Flange." Engineering Structures, Vol. 32, pp. 319-327.10.1016/j.engstruct.2009.09.018

[3] Dutta, A. (1999). On Energy Based Seismic Analysis and Design of Highway Bridge. Ph.D. Thesis, State University of New York at Buffalo, USA.

[4] Hwang, H., Liu, J.B., Chiu, Y.H. (2001). Seismic Fragility Analysis of Highway Bridge, Mid-America Earthquake Center Technical Report MAEC RR-4.

[5] Jeon, J.T. (2018). "Seismic Performance Evaluation of Curved Bridge by Gyeong-Ju Earthquakes." Journal of the Society of Disaster Informantion, Vol. 14, No. 1, pp. 43-50.

[6] Jeon, J.T., Ju, B.S., Son, H.Y. (2018). "Seismics Fragility Analysis of Curved Beam with I-Shape Section." Journal of the Korea Society of Disaster Informantion, Vol. 14, No. 3, pp. 379-386.

[7] Kennedy, R.P., Ravindra, M.K. (1984). "Seismic Fragilities for Nuclear Power Plant Risk Studies." Nuclear Engineering and Design, Vol. 79, pp. 47-68.10.1016/0029-5493(84)90188-2

[8] Kim, B.G., Sause, R. (2005). "High Performance Steel Girders with Tubular Flanges." International Journal of Steel Structure, Vol. 5, No. 3, pp. 253-263.

[9] Lee, W.H., Jeon. J.T. (1993). "A Study on the Torsional Constant Ratio of Continuous Curved Girder Bridges by Transfer Matrix Method." Magazine and Journal of Korean Society of Steel Construction, Vol. 5, pp. 169-180.

[10] Ministry of Land, Transport and Maritime Affairs (2012), Korean Highway Bridge Design Code.

[11] Tanaka, S., Kameda, H., Nojima, N., Shunsyke, O. (2000). "Evaluation of Seismic Fragility for Highway Transportation Systems", World Conference on Earthquake Engineering, Vol. 4, pp. 1-6.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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