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Seismic Behavior and Economic efficiency Analysis of Bridge for PSC I-Shaped Girder of isolated device  

Shin, Yung-Seok (아주대학교 건설교통공학과)
Park, Jang-Ho (아주대학교 건설교통공학과)
Choi, Kwang-Soo (㈜동일기술공사 기술연구소)
Hong, Soon-Ho (㈜동일기술공사 기술연구소)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.21, no.2, 2008 , pp. 145-151 More about this Journal
Abstract
The research so far has primarily analyzed efficiency improvement but in this research, it analyzes the characteristics of earthquake behavior, with changed pier heights, through ordinary and seismic analysis. For this, the kind of bridge bearing has been changed against PSC I-shaped bridge, which is mostly used in practice, and at all times earthquake analysis has been performed with through height of pier. Especially considering sectional power resulting from earthquake analysis, displacement of PSC I-shaped bridge bearing, diameter of pier pillar by earthquake load, and upper spare gap have been analyzed. In case of high-pear, seismic isolated device is decided as proper for cars' driving and for management of bridge since it decreases movement of upper structure, than elastic bearing, reducing size of elastic connect device, and it's been analyzed it is effective for improvement of fine view and economic efficiency reducing section of lower bridge structure. Finally, when design PSC I-shaped bridge bearing, for the proper structure and high-pier side, applying seismic isolated device through precise inner analysis is proper than applying equal elastic bearing.
Keywords
earthquake; PSC I-shaped Girder Bridge; IPC; bridge bearing; seismic isolated device; response spectrum; time history analysis; high-pier;
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