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Title |
Seismic-performance Experiments of Circular Shear Piers Considering Effects of Rebar Corrosion, Lap splice and Axial load
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Authors |
이수형(Soo-Hyung Lee) ; 이승건(Seung-Geon Lee) ; 이혜린(Hyerin Lee) ; 홍기증(Kee-Jeung Hong) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.6.143 |
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Abstract |
The corroded pier that has corrosion of the tranverse steel, main steel and lapsplice directly affects the seismic performance. The corrosion of the tranvese and main steel directly reduce the shear strength and bendig strength. If steel corrosion occurs in lap splice, the flexural strength and flexibility of existing corroded pier that are not seismic design are significantly reduced. In addition, as the axial force acting on the pier increase the shear strength. Considering these effects. In this stuydy, we cosidered steel corrosion, lap splice and axial force, for a reasonable evaluation of seismic-performance. It is confirmed that flexular failure occurs at pies where shear failure is expected to occur due to corrosion of reinforcement. These failure modes and their reason are analyzed, and necessary considerations are presented for seismic reinforcement.
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