Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Shear Capacity of Reinforced Infilled Walls Using Hexagonal Blocks

육각형 블록을 사용한 보강 채움벽의 전단내력

  • 장극관 (서울과학기술대학교 건축학부) ;
  • 고태현 (서울과학기술대학교 건축공학과) ;
  • 서대원 ((주)에코닝, 지진방재기술연구소)
  • Received : 2011.08.29
  • Published : 2012.01.25
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Abstract

Many existing reinforced concrete (RC) frame structures that had designed and constructed in Korea before 1997 do not meet the current seismic design requirements set forth by the Korea Building Code and have an inadequate safety assessment. For those structures constructed with insufficient strength and ductility, the required stiffness was also not provided. The frames of these structures have been designed to resist only gravity loads or gravity and moderate lateral loads and do not have proper reinforcement details needed to ensure ductile behavior. In this study, to improve the seismic capacity of masonry walls, hexagonal blocks were developed and the influence of masonry infilled wall on the seismic performance of RC frames that were designed in accordance with current code provisions were investigated. Four 1/2 scale, single story, single bay, frame specimens were tested. The parameters included that the strength of infilled walls using hexagonal blocks with respect to that of the reinforcemet and lateral load history were investigated. The experimental results were shown that infilled wall could significantly improve the performance of RC frames. The lateral loads developed by the infilled frame specimen were higher than that of the bare frame. It also were indicated that reinforced hexagonal block infilled walls could be potentially used to improve the performance of existing nonductile frames.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. 대한건축학회, 건축구조기준(KBC 2009), 2009
  2. 신종학, 하기주, 이희종, 철근콘크리트 프레임면내 조적벽체의 골조구속에 따른 내진성능 평가 및 개선, 한국구조물진단 학회지, 5(3), 2001
  3. 이정한, 중저층 건축물의 내진성능 및 내진보강, 광운대학교 대학원 박사학위 논문, 2004
  4. 장극관, 서대원, 한태경, 반복하중을 받는 육각형 블록벽체 전단내력평가, 한국구조물진단학회지, 14(6), 2010
  5. Angel, J. E., Abrams, D., Shapiro, D., Uzarski, J. Webster, M., Behavior of reinforced concrete frames with masonry infills, Rep. UILU-ENG-94-2005, Dept. of Civ. Engrg., Univ. of Illinois, Urbana Champaign, Ill. 194
  6. Armin B. Mehrabi, P. Benson Shing, Michael P. Schuller, Experimental Evaluation of Masonry Infilled RC Frames, Journal of Structural Engineering, ASCE, March, 1996
  7. Arturo Tena-Colunga, Artemio Juarez-Angeles, Victor H. Salinas-Vallejo, Cyclic Behabior of Combined and Confined Masonry Walls, Engineerng Structures, 31, 2009
  8. E. Yuksel, H. Ozkaynak, O. Buyukozturk, C. Yalcin, A.A. Dindar, M. Surmeli, D. Tasstan, Performance of alternative CFRP retrofiting schemes used in infilled RC frames, Construction and Building Materials, Elsevier, 24, 2010
  9. G. Michele Calvi, Davide Bolognini, Andrea Penna, Seismic Performance of Masonry Infilled R.C. Frames: Benefits of Slight Reinforcements, 6th Congresso Nacional de Sismolo gia Engenharia Sismica, 2004
  10. Holmes, M, Steel Frames with Brickwork and Concrte Infilling, Proc. Inst. Civ. Engrs. 19, 1961
  11. Marwan T. Shedid, Robert G. Dryadale and Wael W. El- Dakhakhni, Behavior of Fully Grouted Reinforced Concrete Masonry Shear Walls Failing in Flexure: Experimental Results, Journal of Structural Engineering, ASCE, November, 2008
  12. Miha Tomazevic, Earthquake Resistant Design of Masonry Buildings, Imperial College Press, 1999
  13. M. Y. Kaltakci, A. Koken, H. H. Korkmaz, An experiment al study on the behavior of infilled steel frames under reversed cycling loading, Iranian Journal of Science & Technology, 32(B2), 2008
  14. Stafford Smith, B, Lateral Stiffness of Infilled Frames, J. Struct. Div, ASCE, 88(6), 1962
  15. Stafford Smith, B., Behavior of the square infilled frame, J. Struct. Div, ASCE, 92(1), 1966
  16. Stafford Smith, B., Method for predicting the lateral stiffness and strength of Multi-story infilled frames, Build, Sci. Pergamon Press, Oxford, U.K. 2, 1967
  17. T. Paulay, M.J.N. Priestley, Seismic of Reinforced Concrete and Masonry Buildings, John Wiley & Sons, Inc., 1992