Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Cyclic Loading Tests for Prefabricated Composite Columns Using Steel Angle and Reinforcing Bar

PSRC 합성기둥의 반복가력 실험

  • Received : 2013.07.15
  • Accepted : 2013.10.28
  • Published : 2013.12.27
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Abstract

PSRC composite column is a concrete encased steel angle column. In the PSRC composite column, the steel angles placed at the corner of the cross-section resists bending moment and compression load. In the present study, using the performance criteria in KBC 2009, cyclic lateral loading test was performed for PSRC columns to verify the seismic performance. The test parameters were the column type, the use of continuous hoop, and the use of studs for steel angle. 2/3 scale specimens of a conventional composite column and three PSRC columns were tested. The test results showed that the load-carrying capacity predicted by KBC 2009 correlated well with the test results. The specimens also exhibited good deformation and energy dissipation capacities. After concrete cover spalling under cyclic loading, the load-carrying capacity were decreased by buckling of longitudinal bars and steel angles. When continuous hoop was used, the deformability of the PSRC column was improved, preventing early buckling of the steel angles.

PSRC 기둥은 앵글을 콘크리트에 매입시킨 기둥으로, 단면의 외곽 코너에 배치되는 앵글이 기둥의 휨-압축에 저항한다. 본 연구에서는 KBC 2009에 따라 압축력을 가한 기둥에 대하여 횡방향 반복가력 실험을 통하여 내진성능을 검증하였다. 기둥 종류, 연속후프근 적용, 앵글에 스터드 적용을 실험 변수로 고려하였으며, 2/3 스케일을 갖는 한 개의 SRC 합성기둥과 세 개의 PSRC 합성기둥을 실험하였다. 실험결과, KBC 2009로 예측한 PSRC 합성기둥의 하중재하능력은 실험결과와 잘 일치하였으며, 변형능력과 에너지 소산에 있어서 우수한 성능을 보여주었다. PSRC 합성기둥은 반복하중으로 인한 콘크리트 피복 탈락 이후, 앵글 및 주철근의 좌굴에 의해 실험체의 하중재하능력이 감소하였다. 특히, 연속후프근을 적용한 PSRC 합성기둥은 앵글의 조기 국부좌굴이 억제되어 기존 PSRC 합성기둥에 비해 연성능력이 향상되었다.

Keywords

References

  1. Morino, S. (1997) Recent Developments in Hybrid Structures in Japan-Research, Design and Construction Engineering Structures, Elsevier, Vol. 20, No. 4, pp.336-346.
  2. 김형근, 김명한, 조남규, 김상섭, 김상대(2009) yLRC 합성기둥의 압축강도에 관한 실험 연구, 한국강구조학회논문집, 한국강구조학회, 제21권, 제5호, pp.545-552. Kim, H.G., Kim, M.H., Cho, N.G., Kim, S.S., and Kim, S.D. (2009) Experimental Study on the Compressive Strength of yLRC Composite Columns, Journal of Korean Society of Steel Construction, KSSC, Vol. 21, No. 5, pp.545-552 (in Korean).
  3. 김보람, 강성덕, 김형근, 김명한, 김상대(2008) 강재 영구거푸집을 사용한 yLRC 합성기둥의 내화성능 연구, 한국강구조학회논문집, 한국강구조학회, 제20권, 제3호, pp. 365-375. Kim, B.R., Kang, S.D., Kim, H.G., Kim, M.H., and Kim, S.D. (2008) A Study on the Fire Resistance of yLRC Composite Columns with Steel Sheet Forms and Angles, Journal of Korean Society of Steel Construction, KSSC, Vol. 20, No. 3, pp.365-375 (in Korean).
  4. Campione, G. (2010) R/C Columns Strengthend by Means of Steel Angles and Battens: Testing, Modeling and Design, Studies and Researches, Politecnico di Milano, Vol. 30, pp.42-72.
  5. Monturi, R., and Piluso, V. (2009) Reinforced Concrete Columns Strengthened with Angles and Battens Subjected to Eccentric Load, Engineering Structures, Elsevier, Vol. 31, No. 2, pp.539-550. https://doi.org/10.1016/j.engstruct.2008.10.005
  6. 황현종, 엄태성, 박홍근, 이창남, 김형섭(2012) 고강도 앵글을 적용한 선조립 합성기둥의 압축 실험, 한국강구조학회논문집, 한국강구조학회, 제24권, 제4호, pp.361-369. Hwang, H.J., Eom, T.S., Park, H.G., Lee, C.N., and Kim, H.S. (2012) Compression Test for Prefabricated Composite Columns Using High-Strength Steel Angles, Journal of Korean Society of Steel Construction, KSSC, Vol. 24, No.4, pp.361-369 (in Korean). https://doi.org/10.7781/kjoss.2012.24.4.361
  7. 엄태성, 황현종, 박홍근, 이창남, 김형섭(2012) 앵글과 철근을 조립한 PSRC 합성기둥의 휨 실험, 한국강구조학회논문집, 한국강구조학회, 제24권, 제5호, pp.535-547. Eom, T.S., Hwang, H.J., Park, H.G., Lee, C.N., and Kim, H.S. (2012) Flexural Test for Prefabricated Composite Columns Using Steel Angle and Reinforcing Bar, Journal of Korean Society of Steel Construction, KSSC, Vol. 24, No.5, pp.535-547 (in Korean). https://doi.org/10.7781/kjoss.2012.24.5.535
  8. 김창수, 박홍근, 이호준, 최인락(2013) 800MPa 강재 및 100MPa 콘크리트를 적용한 ㄱ형 강재매입형 합성기둥의 편십압축실험, 한국강구조학회논문집, 한국강구조학회, 제25권, 제2호, pp.209-222. Kim, C.S., Park, H.G., Lee, H.J., and Choi, I.R. (2013) Eccentric Axial Loading Test for Concrete-Encased L-section Columns using 800MPa Steel and 100MPa Concrete, Journal of Korean Society of Steel Construction, KSSC, Vol. 25, No. 2, pp.209-222 (in Korean). https://doi.org/10.7781/kjoss.2013.25.2.209
  9. 엄태성, 최태우, 박홍근, 강수민, 진종민(2013) 연속후프로 보강된 철근콘크리트 기둥의 내진실험, 대한건축학회논문집, 대한건축학회, 제29권, 제2호, pp.29-37. Eom, T.S., Choi, T.W., Park, H.G., Kang, S.M., and Jin, J.M. (2013) Seismic Tests on Reinforced Concrete Columns Confined with Continuous Hoops, Journal of Architectural Institute of Korea, AIK, Vol. 29, No. 2, pp.29-37 (in Korean).
  10. 대한건축학회(2009) 건축구조설계기준 및 해설(KBC 2009) 기문당. AIK (2009) Korea building code and commentary-structural, Architectural Institute of Korea (in Korean).
  11. AISC 360 (2010) Specification for Structural Steel Buildings, American Institute of Steel Construction, USA.
  12. Park, R. (1988) State-of-the-Art Report on Ductility Evaluation from Laboratory and Analytical Testing, Proceedings of 9th World Conference on Earthquake Engineering, Tokyo-Kyoto, Japan, Vol. 8, pp.605-616.
  13. Hoshikuma, J., Kawashima, K., Nagaya, K., and Taylor, A.W. (1997) Stress-Strain Model for Confined Reinforced Concrete in Bridge Piers, Journal of Structural Engineering, ASCE, Vol. 123, No. 5, pp.624-633. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:5(624)

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