Browse > Article

Numerical Analysis of Shear Stresses in Framed Tube Structures with Internal Tube(s)  

Lee, Kang-Kun (한양대학교 초대형 구조시스템 연구센터)
Lee, Lee-Hyung (한양대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.15, no.3, 2002 , pp. 511-521 More about this Journal
Abstract
A simple numerical modelling technique is proposed for estimating the shear stress distribution in beams of framed tube structures with multiple internal tubes. The structures arc analysed using a continuum approach in which each tube is individually modelled by a tube beam that accounts for the flexural and shear deformations, as well as the shear lag effects. The numerical analysis of shear stress is based on the mathematical analogy in conjunction with the elastic theory By simplifying assumptions regarding the form of strain distributions in external and internal tubes, the shear stress distributions are expressed in terms of a series of lineal functions of the second moments of area of the structures and the corresponding geometric and material properties, as well as the applied loads. Previous studies for axial stresses and shear lag phenomenon are further developed lot the numerical analysis of shear stresses in the tubes. The simplicity and accuracy of the proposed method are demonstrated through the solutions of throe numerical examples.
Keywords
tube structures; continuum beam analogy; strain distribution; shear lag; unknown strain function;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Coull, A. and Bose, B., 'Simplified analysis of framed-tube structures', Journal of Structural Engineering, ASCE, Vol. 101, No. 11, 1975, pp.2223-2240
2 Kwan, A. K. H., 'Shear lag in shear/core walls', Journal of Structural Engineering, ASCE, Vol. 122, No. 9, 1996, pp.1097-1104   DOI   ScienceOn
3 Lee, K. K. and Lee, L. H., 'Shear Lag in Framed Tube Structures with Multiple Internal Tubes', Journal of the Computational Structural Engineering Institute of Korea, Vol. 13, No. 3, 2000, pp.351-360
4 Coull, A., and Abu El Magd, S. A., 'Analysis of wide-flanged shearwall structures', Reinforced concrete structures subjected to wind and earth-quake forces, ACI Spec. Publ. 63, Paper No. SP63-23, Concrete Institute, Detroit, Mich., 1980, pp.575-607
5 Kwan, A. K. H., 'Simple method for approximate analysis of framed tube structures', Journal of Structural Engineering, ASCE, Vol. 120, No. 4, 1994, pp.1221-1239   DOI   ScienceOn
6 ETABS(1996), Three Dimensional Analysis of Building System, Computers and Structures Inc., Berkerly, California, U.S.A.
7 Lee, K. K., Loo, Y. C. and Guan, H., 'Simple Analysis of Framed Tube Structure with Multiple Internal Tubes', Journal of Structural Engineering, ASCE, Vol. 127, No. 4, 2001, pp.450-460   DOI   ScienceOn
8 Chang, P. C., 'Analytical modelling of tube-in-tube structure', Journal of Structural Engineering, ASCE, Vol. 111, No. 6, 1985, pp. 1326-1337   DOI   ScienceOn