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http://dx.doi.org/10.5000/EESK.2007.11.3.087

A Study on the Seismic Performance of Energy-Dissipating Sacrificial Devices for Steel Plate Ginder Bridges  

Cho, Kwang-Il (연세대학교 사회환경시스템공학부)
Gwak, Pil-Bong (연세대학교 사회환경시스템공학부)
Mha, Ho-Seong (호서대학교 토목공학과)
Kim, Sang-Hyo (연세대학교 사회환경시스템공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.11, no.3, 2007 , pp. 87-96 More about this Journal
Abstract
A new Energy-Dissipating Sacrificial Device (EDSD) is developed for steel plate girders, which can effectively dissipate the energy stored in the structures during seismic actions. To verify the performance of the EDSD, various seismic responses of a sample bridge with the EDSD are analyzed in terms of energy, member forces and deformation. The full scale model tests are conducted to certify the performance of the EDSD when it is applied on existing bridges. Using the improved hysteretic model of the sacrificial member, the seismic analysis for an example bridge is performed. The results show that the proposed EDSD under seismic excitations can significantly decrease the energy stored in the bridge structures and reduce the relative displacements of each superstructure to the ground. The EDSD is also found to function as a structural fuse under strong ground motions, sacrificing itself to absorb the excessive energy. Consequently, economical enhancement of the seismic performance of bridges can be achieved by employing the newly developed energy-dissipating sacrificial device.
Keywords
Energy-dissipating sacrificial device (EDSD); Seismic retrofit; Pseudo dynamic test; Enhancement of seismic performance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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