한국지진공학회:학술대회논문집 (Proceedings of the Earthquake Engineering Society of Korea Conference)
- 한국지진공학회 2003년도 추계 학술발표회논문집
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- Pages.255-262
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- 2003
한정연성도 설계를 위한 소수 겹침이음을 갖는 주철근 상세에 관한 연구
Less amout of lap-spliced longitudinal bars as an alternative of seismic detailing for limited ductility design
초록
In present Korea Highway Bridge Standards the lap splice of longitudinal bars in a potential plastic hinge region is allowed so that large amount of transverse rebar specified in high seismicity regions Is required to prevent brittle bond failure If the brittle failure effects can be completely removed from the conventional designed piers, the amount of transverse rebar will be reduced drastically. In this study scaled models with solid and hollow rectangular sections were tested to investigate the seismic behavior of RC piers with 50% of lap-spliced longitudinal bars in plastic hinge regions. In the tests the typical flexural failure conducting a ductile behavior were observed in both models. It is shown that the 50% of lap-spliced bars can be considered as a good alternative of seismic detailing for longitudinal bars.
키워드