Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Evaluation of Structural Performance the Hollow PC Column Joint Subjected to Cyclic Lateral Load

반복 횡하중을 받는 유공 PC 기둥 접합부의 구조성능 평가

  • Seo, Soo-Yeon (Dept. of Architectural Engineering, Chungju National University) ;
  • Yoon, Seong-Joe (Dept. of Architectural Engineering, Chungju National University) ;
  • Lee, Woo-Jin (KOLAS Center, Chungju National University)
  • 서수연 (충주대학교 건축공학과) ;
  • 윤승조 (충주대학교 건축공학과) ;
  • 이우진 (충주대학교 국제공인시험연구센터)
  • Published : 2008.06.30
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Abstract

In order to improve the workability in erecting Precast Concrete (PC) members and enhance the seismic resistance capacity of the joints in PC moment frames, a new PC column and its construction process are introduced in this paper. This column is manufactured by centrifugal force in keeping the hollow tube inside; the hollow is little bit wide and the grout can be poured from top to bottom after erection at site so that more compact grouting is possible in horizontal joint. The repeated cyclic loading test for four full scaled specimens was conducted to evaluate the seismic resistance capacity of the joint designed by the proposed system. For the continuity of main reinforcements in column, two connecting methods are used in designing specimens; one is to use mechanical connector and other is lab splice. From the cyclic lateral loading test, it was found that the seismic capacity of the developed PC column joint is comparable to that of monolithic joint.

본 연구는 프리캐스트 콘크리트 모멘트 골조 시스템의 시공 성능 향상과 접합부 내진성능 향상을 위하여 새로운 개념의 PC 기둥 부재와 시공 공정을 개발하였다. 이 PC 기둥은 원심력으로 제조되어 내부에 공간이 비워있는 중공관 PC 부재로서, 이 기둥을 활용할 경우, 중공관을 통하여 현장타설 콘크리트와 동일한 일체성을 확보할 수 있다. 본 연구는 제안된 PC 기둥 접합부의 내진성능을 평가하기 위하여 반복가력 시험을 수행하였다. 실험체는 기둥 주철근의 연속성을 확보하기 위하여 기계적 이음과 겹침이음을 활용한 2가지 이음 방법을 적용하였으며, PC 기둥의 띠철근 배근 형태를 고려하여 실물 크기의 4개 실험체를 계획 실험하였다. 반복 횡력 시험 결과, 제안된 HPCC 기둥을 활용할 경우, 현장타설 RC 시스템의 접합부 내진성능을 충분히 확보할 수 있는 것으로 나타났다.

Keywords

References

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  2. Seismic Resistance of Cast-In-Place Concrete-Filled Hollow PC Columns vol.26, pp.1, 2014, https://doi.org/10.4334/JKCI.2014.26.1.035
  3. Compressive Behavior of Precast Concrete Column with Hollow Corresponding to Hollow Ratio vol.26, pp.4, 2014, https://doi.org/10.4334/JKCI.2014.26.4.441
  4. Seismic performances of centrifugally-formed hollow-core precast columns with multi-interlocking spirals vol.20, pp.6, 2016, https://doi.org/10.12989/scs.2016.20.6.1259
  5. Cyclic Lateral Loading Test for Cast-In-Place Concrete-Filled Hollow PC Columns Using Permanent Inner form vol.28, pp.2, 2016, https://doi.org/10.4334/JKCI.2016.28.2.129
  6. Cyclic Loading Test for Concrete-Filled Hollow Precast Concrete Columns Produced by Using a New Fabrication Method vol.143, pp.4, 2017, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001703
  7. Development of a steel-guide connection method for composite precast concrete components vol.23, pp.1, 2017, https://doi.org/10.3846/13923730.2014.975740