Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

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

DOI QR Code

A Study on the Shape Modeling and Structural Stability of an Icosahedron-typed Modular Dome

정20면체 모듈러 돔의 형상모델링 및 구조안정성에 관한 연구

  • Shon, Su-Deok (School of Arch. Eng., Korea Univ. of Tech. & Education) ;
  • Woo, Hyo-Jun (School of Arch. Eng., Korea Univ. of Tech. & Education) ;
  • Lee, Seung-Jae (School of Arch. Eng., Korea Univ. of Tech. & Education)
  • 손수덕 (한국기술교육대학교 건축공학부) ;
  • 우효준 (한국기술교육대학교 건축공학부 대학원) ;
  • 이승재 (한국기술교육대학교 건축공학부)
  • Received : 2014.12.29
  • Accepted : 2015.03.02
  • Published : 2015.06.15
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a shape design and an analysis considering structural stability were investigated to develop an icosahedron-based hemispherical modular dome. To design this modular dome, a program that can perform icosahedron shape modeling, modularization of joint connection members, and the analysis of structural stability was developed. Furthermore, based on the adopted numerical model, the eigen buckling mode, unstable behavior characteristics according to load vector, and the critical buckling load of the modular dome under uniformly distributed load and concentrated load were analyzed, and the resistance capacities of the structure according to different load vectors were compared. The analysis results for the modular dome suggest that the developed program can perform joint modeling for shape design as well as modular member design, and adequately expressed the nonlinear behaviors of structured according to load conditions. The critical buckling load results also correctly reflected the characteristics of the load conditions. The uniformly distributed load was more advantageous to the structural stability than concentrated load.

Keywords

References

  1. Kim, J.H. and Park, I.M. (2013) The Practical Application of Modular Construction for Residential Facilities, Journal of the Korean Housing Association, Vol. 24(3), 19-26 https://doi.org/10.6107/JKHA.2013.24.3.019
  2. Hong, S.G., Cho, B.H., Chung, K.S. and Moon, J.H. (2011) Behavior of framed modular building system with double skin steel panels, Journal of Constructional Steel Research, Vol. 67, 936-946 https://doi.org/10.1016/j.jcsr.2011.02.002
  3. Ha, T.H., Cho, B.H., Kim, T.H., Lee, D.Y. and Eom, T.S. (2013) Earthquake Resistance of Modular Building Unit Using Load-Bearing Steel Stud Panels, Journal of Korean Society of Steel Construction, Vol. 25(5), 519-530 https://doi.org/10.7781/kjoss.2013.25.5.519
  4. Lee, S.S., Bae, K.W., Park, K.S. and Hong, S.Y. (2013) An Experimental Evaluation of Structural Performance for the Beam to Column Joint in Unit Modular System, Journal of Korean Society of Steel Construction, Vol. 25(3), 255-265 https://doi.org/10.7781/kjoss.2013.25.3.255
  5. Choong, K.K. and Hangai, Y. (1993) Review on methods of bifurcation analysis for geometrically nonlinear structures, Bulletin of the International Association for Shell and Spatial structures, Vol. 34(112), 133-149
  6. Choong, K.K. and Kim, J.Y. (2001) A numerical strategy for computing the stability boundaries for multi-loading systems by using generalized inverse and continuation method, Engineering Structures, Vol. 23, 715-724 https://doi.org/10.1016/S0141-0296(00)00071-7
  7. Shon, S.D., Kim, S.D., Lee, S.J. and Kim, J.S. (2011) A study on the critical point and bifurcation according to load mode of dome-typed space frame structures, Journal of Korean Association for Spatial Structures, Vol. 11(1), 121-130 https://doi.org/10.9712/KASS.2011.11.1.121
  8. Shon, S.D. and Lee, S.J. (2013) Critical load and effective buckling length factor of dome-typed space frame accordance with variation of member rigidity, Journal of Korean Association for Spatial Structures, Vol. 13(1), 87-96 https://doi.org/10.9712/KASS.2013.13.1.087
  9. El-Sheikh, A. (1998) Design of space truss structures, Structural Engineering and Mechanics, Vol. 6(2), 185-200 https://doi.org/10.12989/sem.1998.6.2.185
  10. Huseyin, K. (1973) The multi-parameter perturbation technique for the analysis of nonlinear system, International Journal of Nonlinear Mechanics, Vol. 8(5), 431-443 https://doi.org/10.1016/0020-7462(73)90035-8
  11. Bergan, P.G. (1980) Solution algorithms for nonlinear structural problems, Computers and Structures, Vol. 12, 497-509 https://doi.org/10.1016/0045-7949(80)90125-X
  12. Kim, J.K. and Han, S.E. (1998) The geometrically nonlinear analysis of single layer latticed domes by mode superposition method, Journal of Architectural Institute of Korea - Structure & Construction, Vol 14(4), 317-325
  13. Jung, H.M. (1997) An effect of equipment-loading on the buckling characteristics of single-layer latticed domes, Journal of Korean society of steel construction, Vol 9(3), 323- 332
  14. Lee, S.J. and Shon, S.D. (2014) A study on regular traingular mesh modeling of network dome using differential evolution algorithm", Journal of Architecture Institute of Korea (Structure), Vol. 30(5), 13-20
  15. Abedi, K. and Parke, G.A.R. (1991) Progressive collapse of single-layer braced domes, International Journal of Space Structures, Vol. 11(3), 291-306
  16. Kato, S., Mutoh, I. and Shomura, M. (1994) Effect in joint rigidity on buckling strength of single layer lattice dome, Bulletin of the International Association for Shell and Spatial Structures, Vol. 35(115), 101-109
  17. Bulenda, Th. and Knippers, J. (2001) Stability of grid shells, Computers and Structures, Vol. 79, 1161-1174 https://doi.org/10.1016/S0045-7949(01)00011-6
  18. Lopez, A., Puente, I. and Serna, M.A. (2007) Numerical model and experimental tests on single-layer latticed domes with semi-rigid joints, Computers and Structures, Vol. 85, 360-374 https://doi.org/10.1016/j.compstruc.2006.11.025
  19. Yamada, S., Matsumoto, Y., Sakamoto, A. and Croll, J.G.A. (2011) Design estimation method of buckling load and the associated mode for single layer lattice dome roof with square plan, Proceeding of the IABSE-IASS 2011 symposium, London, 72
  20. Kim, N.S., Shon, S.D. and Kim, S.D. (2008) A study on the Unstable behavior according to load and boundary condition of shelled space frame structures, Proceedings of KASS symposium 2008, Vol 5(1), 80-85