Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Nonlinear Analysis of Slender Double Skin Composite Walls Subjected to Cyclic Loading

주기하중을 받는 세장한 이중강판합성벽의 비선형해석

  • 엄태성 (대구가톨릭대학교 공과대학 건축학과) ;
  • 박홍근 (서울대학교 공과대학 건축학과)
  • Received : 2008.03.17
  • Accepted : 2008.07.08
  • Published : 2008.08.10
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Abstract

A numerical analysis method was studied to predict the nonlinear behavior of slender double skin composite walls. For convenience in numerical analysis, the model for the double skin composite wall was developed as a macroscopic model that can predict nonlinear behavior with relatively simplified models. For the wall showing flexure-dominant behavior, a multiple layer model was used. Each layer was modeled with composite elements of concrete and steel plate. An X-type truss model was used for coupling beams showing shear-dominant behavior. To describe the cyclic behavior of concrete and steel elements, simplified cyclic models for the materials were proposed. The proposed analysis model was applied to isolated walls and coupled walls with rectangular or T-shaped cross-sections. The analytical results were compared with existing test results.

휨지배 거동을 나타내는 세장한 이중강판합성벽의 비탄성 거동을 예측하기 위하여 비선형 수치해석 모델이 연구되었다. 수치해석의 편리를 위하여, 제안된 모델은 비교적 단순한 모델을 가지고 비탄성 거동을 근사적으로 예측할 수 있는 거시적 모델로 개발되었다. 휨지배 거동을 나타내는 벽체에 대해서는 다중평행요소 모델이 사용되었으며, 깊은 연결보의 전단거동을 위하여 X형 대각요소 모델이 사용되었다. 각 요소의 주기거동을 예측하기 위하여 콘크리트 및 강판 요소에 대한 간략화된 일축의 주기모델을 제안하였다. 제안된 해석모델은 1자형 및 T형 단일벽과 병렬벽에 적용하였으며, 그 결과는 기존의 실험결과와 비교되었다.

Keywords

References

  1. 엄태성, 박홍근, 김진호, 장인화(2008). 주기하중을 받는 이 중강판합성벽의 실험연구, 한국강구조학회 논문집, 20(2). (게재 예정)
  2. Brown, R. H. and Jirsa, J. O.(1971). Reinforced Concrete Beams under Load Reversals, Journal of the American concrete Institute, 68(5), pp. 380-390
  3. Hobbit, Karlsson, and Sorensen Inc.(2002). ABAQUS User Manual, version 6.3, Hobbit, Karlsson, and Sorensen Inc., Rhode Island, USA
  4. Mander, J. B., Priestley, M. J. N., and Park, R. (1988). Theoretical Stress-Strain Model for Confined Concrete, Journal of Structural Engineering, ASCE, 114(8), pp. 1804-1826 https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  5. Orakcal, K., Massone, L. M., and Wallace, J. W. (2006) Analytical Modeling of Reinforced Concrete Walls for Predicting Flexural and Coupled Shear-Flexural Responses, PEER Report 2006/07, Pacific Earthquake Engineering Research Center, University of California, Berkeley, California, USA, 213 pp
  6. Orakcal, K., Wallace, J. W., and Conte, J. P. (2004) Flexural Modeling of Reinforced Concrete Walls-Model Contributes, ACI Structural Journal, 101(5), pp. 688-698
  7. Mansour, M., Lee, J. and Hsu, T. T. C.(2001). Cyclic Stress-Strain of Concrete and Steel Bars in Membrane Elements, Journal of Structural Engineering, ASCE, 127(12), pp. 1402-1411 https://doi.org/10.1061/(ASCE)0733-9445(2001)127:12(1402)
  8. Saenz, I. P.(1964). Discussion of Equation for the Stress-Strain Curve of Concrete, by Desayi and Krishnan, Journal of the American Concrete Institute, Proceedings, 61(9), pp. 1229-1235
  9. Vulcano, A., and Bertero, V. V.(1987) Analytical Models for Predicting the Lateral Response of RC Shear Walls: Evaluation of Their Reliability, EERC Report No. UCB/EERC -87/19, Earthquake Engineering Research Center, University of California, Berkeley, Calif., 99 pp
  10. Zhang, L. X. and Hsu, T. T. C.(1998). Behavior and Analysis of 100 MPa Concrete Membrane Elements, Journal of Structural Engineering, ASCE, 124(1), pp. 24-34 https://doi.org/10.1061/(ASCE)0733-9445(1998)124:1(24)