Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Behavior of Circular Sectional RC Bridge Columns with Various Lap-splice Lengths - An Experimental Study -

축방향철근 겹침이음길이에 따른 RC원형 교각의 거동특성 - 실험적 연구 -

  • Received : 2012.11.05
  • Accepted : 2012.12.17
  • Published : 2012.12.31
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Abstract

It is known that seismic performance of existing bridges having insufficient lateral confinements and lap-splices of longitudinal reinforcements at the base of column decreases dramatically. In this study, small-scaled model tests have been performed to confirm the seismic behaviors of RC bridge piers with various lap-splice lengths. The 8 test models have circular section with diameters of 0.65 m, 0.8 m, 1.0 m, and lap-splice lengths of B-class or C-class. The test results show that the failure modes of models are not depending on the lap-splice length itself but depend on the ratio of lap-splice length to diameter, and that the displacement ductility is also affected by this ratio.

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References

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  1. Seismic Performance Assessment of Existing Circular Sectional RC Bridge Columns according to Lap-splice Length of Longitudinal Bars vol.18, pp.4, 2014, https://doi.org/10.5000/EESK.2014.18.4.201
  2. Nonlinear Seismic Analysis for Performance Assessment of Hollow RC Bridge Columns with Reinforcement Details for Material Quantity Reduction vol.18, pp.5, 2014, https://doi.org/10.5000/EESK.2014.18.5.221