Critical Buckling Load and Nonlinear Post-Buckling Response of Guyed Towers
The lateral resistance provided by the inclined cables to pylons of cable stayed bridges and communication tower masts is approximated by means of the equivalent spring method, proposed in the literature by several researchers. At first, a simple pylon is considered supported laterally by a set of two symmetrically arranged inclined cables. The concept of substituting the cables with a spring of equivalent stiffness is employed and the critical buckling load of the pylon is calculated analytically, based on linear buckling theory. Then, the above substitution is used in order to investigate the stability of such structures by means of nonlinear finite element analyses. Namely, the analytical solution is compared to numerical results, which are generated through linearized buckling analysis (LBA) of the spring-supported pylon as well as geometrically nonlinear analysis with initial imperfections (GNIA) of the actual cable-supported pylon, employing finite element software ADINA. The unstable nature of the post-buckling response and the imperfection sensitivity of such structures are highlighted and design implications are discussed.
No Supplementary Data
No Article Media
Document Type: Research Article
Publication date: December 1, 2014
More about this publication?
- The Journal of the IASS is the peer-reviewed, quarterly journal of the International Association for Shell and Spatial Structures. The journal mainly presents technical papers and project reports submitted by members or nonmembers of the IASS. Typically, one issue per year focuses on a special topic arranged by guest editors. Additional articles annually include the four Hangai Prize winning papers and Tsuboi Proceedings Award contribution from the IASS annual symposium. Finally, additional content includes announcements of events and memorial statements of distinguished IASS members.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites