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http://dx.doi.org/10.5000/EESK.2014.18.4.193

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

Kang, Seung Woo (Department of Civil Engineering, Dong-a University)
Choi, Kwang Kyu (Department of Civil Engineering, Dong-a University)
Bae, Byung Ho (Korea Infrastructure Safety Corporation)
Ko, Jae Sang (Korea Infrastructure Safety Corporation)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.18, no.4, 2014 , pp. 193-200 More about this Journal
Abstract
This paper examines the pounding problem between adjacent decks subjected to strong earthquakes. The elastomeric bearings in an isolated bridge reduce the stresses on the superstructure and cushion the impact by transferring smaller seismic forces to the substructure. 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 numerical analysis. In the analysis, decision making is conducted whether the collision took place or not and, the magnitude of pounding force and the duration time of collision are obtained and the results are discussed.
Keywords
Pounding; Pounding force; Adjacent decks; Soil condition; Frequency ratios;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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