Wind‐Induced Nonlinear Lateral‐Torsional Buckling of Cable‐Stayed Bridges
- 1 February 1994
- journal article
- research article
- Published by American Society of Civil Engineers (ASCE) in Journal of Structural Engineering
- Vol. 120 (2), 486-506
- https://doi.org/10.1061/(asce)0733-9445(1994)120:2(486)
Abstract
A finite element approach to calculate directly the critical wind velocity for the nonlinear lateral‐torsional buckling instability of long‐span cable‐stayed bridges under the displacement‐dependent wind loads is presented. An analytical modeling of wind‐induced lateral‐torsional buckling is formulated taking into account the three components of displacement‐dependent wind loads as well as geometric nonlinearity. A combination of the eigenvalue analysis and the updated bound algorithm for wind velocity is applied to automatically calculate the critical wind velocity. The results show that the incorporation of the three components of displacement‐dependent wind loads as well as the geometric nonlinearity in the analytical modeling of the lateral‐torsional buckling instability results in significant reduction in the critical wind velocity compared with both the conventional non‐linear torsional divergence and linearized lateral‐torsional buckling.Keywords
This publication has 7 references indexed in Scilit:
- Wind design and analysis for the Normandy BridgePublished by Informa UK Limited ,2017
- Consistent Frame Buckling Analysis by Finite Element MethodJournal of Structural Engineering, 1991
- Three-dimensional nonlinear static analysis of cable-stayed bridgesComputers & Structures, 1990
- Natural approach for geometric non‐linear analysis of thin‐walled framesInternational Journal for Numerical Methods in Engineering, 1990
- Stiffness Matrix for Geometric Nonlinear AnalysisJournal of Structural Engineering, 1986
- On the geometrical stiffness of a beam in space—a consistent V.W. approachComputer Methods in Applied Mechanics and Engineering, 1979
- Buckling of Cable-Stayed Girder BridgesJournal of the Structural Division, 1976