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ISSN : 1226-525X(Print)
ISSN : 2234-1099(Online)
Journal of the Earthquake Engineering Society of Korea Vol.18 No.4 pp.193-200
DOI : https://doi.org/10.5000/EESK.2014.18.4.193

지반강성 및 고유진동수비에 따른 교량의 지진충돌해석

강승우1), 최광규1)*, 배병호2), 고재상2)
1)동아대학교 토목공학과, 2)한국시설안전공단

Seismic Pounding Analysis of Bridge According to Soil Stiffness and Natural Frequency Ratio

Kwang Kyu Choi1)*, Kang, Seung Woo1), Bae, Byung Ho2), Ko, Jae Sang2)
1)Department of Civil Engineering, Dong-a University
1)Department of Civil Engineering, Dong-a University, 2)Korea Infrastructure Safety Corporation
(Received 4 February 2014; Revised 9 May 2014; Accepted 9 May 2014)

Abstract

This paper examines the pounding problem between adjacent decks subjected to strong earthquakes. The elastomeric bearings in anisolated bridge reduce the stresses on the superstructure and cushion the impact by transferring smaller seismic forces to thesubstructure. On the other hand, these bearings also allow large horizontal displacement of the superstructure due to seismic forces.Bridges having various supporting soil conditions and different frequency ratios between adjacent decks are investigated by numericalanalysis. In the analysis, decision making is conducted whether the collision took place or not and, the magnitude of pounding force andthe duration time of collision are obtained and the results are discussed.
Pounding,Pounding force,Adjacent decks,Soil condition,Frequency ratios

 

Reference

Journal Abbreviation J. Earthq. Eng. Soc. Korea
Frequency Bimonthly
Doi Prefix 10.5000/EESK
Year of Launching 1997
Publisher Earthquake Engineering Society of Korea
Indexed/Tracked/Covered By