• Journal of Korean Society of societal Security
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• v.2 no.2
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• pp.63-68
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• 2009

Seismic design of newly built bridges can be considered and carried out during construction process according to the revised road bridge design standard issued recently. While for the existing reinforced concrete bridge priers under service before new standard implements, their resistance capacity against lateral seismic loading is inferior. In this research, seismic reinforcing for existing bridge piers by nickel-chrome alloy bar has been analyzed. Based on the established model by MIDAS program, the behaviors of bridge piers including deformation and stress with and without nickel-chrome alloy reinforcing bars have been compared and discussed under lateral seismic loading. And the advantages of using nickel-chrome alloy bar as seismic reinforcement over other materials, such as good performance, good economy etc. have been demonstrated by comparison with other researches. Also the anti-seismic efficiency of nickel-chrome alloy reinforcing bars has been confirmed by MIDAS modeling analysis.

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.131-132
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• 2010

Seismic design for new built bridges has been considered which is being used now. However, before the revised code for seismic design is issued, the reinforced concrete bridge piers which has been built and being used are pretty weak under the lateral seismic load. experiments of bridge piers are done under iterative lateral load, according to experimental results, the influence of Nikon-Chrome alloy steel barson performance of bridge piers is analyzed, also the shape effect of anti-seismic reinforcement on pier behavior is discussed.