Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
권호 표지
DOI QR코드

DOI QR Code

Dynamic Response Analysis of Twisted High-Rise Structures according to the Core Location Change

코어 위치 변화에 따른 비틀림 초고층 구조물의 동적응답분석

  • 채영원 (영남대학교 일반대학원 건축학과) ;
  • 김현수 (선문대학교 건축학부) ;
  • 강주원 (영남대학교 건축학부)
  • Received : 2021.12.29
  • Accepted : 2022.02.07
  • Published : 2022.03.15
Download PDF
⟨ Previous Next ⟩

Abstract

Currently, the construction trend of high-rise structures is changing from a cube-shaped box to a free-form. In the case of free-form structures, it is difficult to predict the behavior of the structure because it induces torsional deformation due to inclined columns and the eccentricity of the structure by the horizontal load. For this reason, it is essential to review the stability by considering the design variables at the design stage. In this paper, the position of the weak vertical member was analyzed by analyzing the behavior of the structure according to the change in the core position of the twisted high-rise structures. In the case of the shear wall, the shear force was found to be high in the order of proximity to the center of gravity of each floor of the structure. In the case of the column, the component force was generated by the axial force of the outermost beam, so the bending moment was concentrated on the inner column with no inclination.

Keywords

Acknowledgement

이 논문은 2021년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임. (NRF-2020R1A2B5B01002117)

References

  1. Kim, J. H., "Seismic design of high-rise buildings", The Magazine of the Korean Society of Hazard Mitigation, Vol.7, No.2, pp.8~15, 2007
  2. Lee, D. H., Kim, H. S., & Kang, J. W., "Analysis of the static characteristics of high-rise structures with twisted shape", Journal of Korean Association for Spatial Structures, Vol.20, No.4, pp.93~100, 2020 https://doi.org/10.9712/KASS.2020.20.4.93
  3. Jang, I. S., Im, J. E., & Park, S. M., "A study on the core characteristics of irregular-shaped high-rise buildings", Journal of the Architectural Institute of Korea Planning & Design, Vol.35, No.11, pp.13~24, 2019
  4. Kim, J. R., & Kim, J. Y., "Analyses of structural behaviors according to core location in the building with symmetric plan", Journal of the Korea Institute for Structural Maintenance and Inspection, Vol.24, No.1, pp.116~124, 2020 https://doi.org/10.11112/JKSMI.2020.24.1.116
  5. Han, S. W., Kim, T. O., & Ha, S. J., "Seismic performance evaluation of special moment steel frames with torsional irregularities - I seismic design", Journal of Korean Society of Steel Construction, Vol.29, No.5, pp.361~368, 2017 https://doi.org/10.7781/KJOSS.2017.29.5.361
  6. Park, J. H., Kim, T. H., Kim, O. J., & Lee, D. B., "Performance evaluation of outrigger system in tall buildings with eccentric core", Proceedings of the Computational Structural Engineering Institute Conference, pp.561~566, 2009
  7. Architectural Institute of Korea, Korean Design Standard (KDS 41), 2019
  8. Eom, T. S., Lee, H. L., & Park, H. G., "Modal combination method for prediction of story earthquake load profiles", Journal of the Earthquake Engineering Society of Korea, Vol.10, No.3, pp.65~75, 2006 https://doi.org/10.5000/EESK.2006.10.3.065
  9. Kim, J. H., Kim, J. H., Park, H. K., & Hong, S. G., "Reinforced concrete wall under in-plane flexure at ultimate state", Proceeding of the Korea Concrete Institute Conference, pp.891~896, 2001