Nonlinear analysis of plate–truss composite steel girders

An efficient approach to the nonlinear analysis of plate–truss composite steel girders is presented in this paper. Using finite strip elements in transverse direction, a spatial displacement field in consideration of local buckling of a plate–truss composite structure is constructed. The updated Lag...

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Bibliographic Details
Published in:Engineering structures 2003-09, Vol.25 (11), p.1377-1385
Main Authors: Wang, R.H., Li, Q.S., Luo, Q.Z., Tang, J., Xiao, H.B., Huang, Y.Q.
Format: Article
Language:English
Subjects:
Applied sciences
Bridges
Building structure
Buildings. Public works
Construction (buildings and works)
Exact sciences and technology
Finite strip element
Local buckling
Metal bridges
Metal structure
Nonlinear finite element
Plate–truss
Stresses. Safety
Structural analysis. Stresses
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Summary:An efficient approach to the nonlinear analysis of plate–truss composite steel girders is presented in this paper. Using finite strip elements in transverse direction, a spatial displacement field in consideration of local buckling of a plate–truss composite structure is constructed. The updated Lagrangian formulation of the finite strip element is introduced based on the incremental virtual work principle of the three-dimensional continuum, and the effect of large deformation is taken into account with the Euler coordinate transformation. The effect of material nonlinear behavior is considered with inner-force plastic coefficients of cross section. As an illustrating example of the application of the presented approach, the nonlinear behavior of a plate–truss composite steel bridge model is studied, and the computational results are verified with test data.
ISSN:0141-0296
1873-7323
DOI:10.1016/S0141-0296(03)00107-X