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


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.


Supported by : 한국시설안전공단


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