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http://dx.doi.org/10.21289/KSIC.2022.25.6.1231

Behavior Characteristics of Compression-Only Bridge Seismic Reinforcement Method Using SSI Analysis  

Jang, Yoo-Sik (Mi-Ho Engineering Corporation)
Yoon, Won-Sub (LINC 3.0, Won-Kwang University)
You, Kwang-Ho (Dept. Civil Engineering, The University of Suwon)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.6_3, 2022 , pp. 1231-1238 More about this Journal
Abstract
In this study, the reinforcement effect of the compression-only bridge seismic reinforcement method, which is mainly applied to old bridges, was studied through SSI analysis. As the analysis conditions, acceleration magnitudes of 0.1g, 0.15g, and 0.2 g were applied, and long-period and short-period seismic waves were applied. As a result of the analysis according to the assumed ground characteristics and structure size, the horizontal displacement at the reinforced section was reduced by about 9%, and the long-period seismic wave had a 95% larger displacement than the short-period seismic wave. In addition, an increase in acceleration of 0.1g resulted in a displacement of about 50%, and a large increase in displacement was observed in long-period seismic waves. As a result of the analysis, in the case of the compression-only bridge seismic reinforcement method, there was a reinforcing effect, so the field applicability was excellent.
Keywords
Bridge; Compression-Only; Seismic; SSI Analysis;
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