Advanced Inelastic Analysis of Frame Structures Considering Shearing and Warping Deformations

Abstract:

The paper addresses the derivation of a concentrated plastic-hinge finite element modelling for nonlinear analysis of space steel frames. The interpolation functions considering shearing deformation are adopted and cubic polynomial interpolation functions based on Kollbrnner-Dajdin modified constraint torsion theory are used to consider the warping deformation, with these functions the effect of the secondary shear stress can be taken into account. With the expanded Orbison’s yielding surface, the plastic-hinge method used to do nonlinear analysis of space steel frames is derived by introducing elastic-plastic hinge parameter of element cross section. Numerical examples are presented to illustrate the validity and the universality of the proposed approach and the results show the new model is accurate and suitable for the nonlinear analysis of steel frameworks.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 268-273
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.268
• Online since: May 2011
• Authors: Lian Kun Wang
• Keywords: Advanced Analysis, Concentrated Plastic-Hinge Model, RC Frame Structure, Shearing Deformation, Warping Deformation

References

[1] Y.R. Hu, B.Z. Chen: Computational Structural Mechanics and its Application Vol.15 (1988), p.19(in Chinese)

[2] Y.B. Yang, W. McGuire: Journal of Structural Engineering Vol.112 (1986), p.853

[3] M.H. Wang: Advanced analysis theory of steel structure in three dimension space and its application PHD thesis, Xi'an University of Architecture and Technology (2003) (in Chinese)

[4] L.K. Wang, M.H. Wang and J.P. Hao: Journal of Guangxi University Vol.35 (2010), p.560(in Chinese)

[5] Y.B. Yang, S.R. Kuo: Theory and Analysis of Nonlinear Frame Structure (Prentice Hall, Singapore1994)

[6] L.K. Wang: Advanced Analysis Method Study of Space Steel Frames Based on Thin-walled Member Theory PHD thesis, Xi'an University of Architecture and Technology (2008) (in Chinese)

[7] L.K. Wang, J.P. Hao and J.F. Zhang: Journal of Xi'an University of Architecture & Technology Vol. 40 (2008), p.53(in Chinese)

[8] A. Conci, M. Gattass: International Journal for Numerical Methods in Engineering Vol.29 (1990), p.1653

[9] G.Q. Li, Y.S. Liu and X. Zhao: Advanced analysis and system reliability design of steel structural frames (China Architecture & Building Press, Beijing 2006 ) (in Chinese)

[10] Y.B. Yang, W. McGuire: Journal of Structure Engineering Vol.112 (1986), p.879

[11] J.Y.R. Liew, H. Chen, N.E. Shanmugam, et al: Engineering Structures Vol.22 (2000), p.1324