Abstract
A performance based design method of three-dimensional steel arch bridges using practical inelastic nonlinear analysis is presented. In this design method, separate member capacity checks after analysis are not required, because the stability and strength of the structural system and its component members can be rigorously treated in analysis. The geometric nonlinearity is considered by using the stability function for beam-column members and the geometric stiffness matrix for truss members. The Column Research Council (CRC) tangent modulus is used to account for gradual yielding due to residual stresses. A parabolic function is used to represent the transition from elastic to zero stiffness associated with a developing hinge of beam-column members. The load-displacements predicted by the proposed analysis compare well with those given by other approaches. A case study has been presented for the steel arch bridge with 61 m span. The analysis results show that the proposed method is suitable for adoption in practice.
| Original language | English |
|---|---|
| Pages (from-to) | 91-108 |
| Number of pages | 18 |
| Journal | Journal of Constructional Steel Research |
| Volume | 59 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2003 |
Keywords
- Geometric nonlinearity
- Inelastic nonlinear analysis
- Material nonlinearity
- Performance based design
- Steel arch bridge