Wind-induced Nonlinearities of Super Long Stay Cables

DOI

10.2991/icseee-15.2016.45How to use a DOI?

Keywords

Stay cable; Effective elastic modulus; Fundamental frequency; Parametric vibration; Aerostatic loading.

Abstract

Effects of aerostatic wind loads on effective elastic modulus and fundamental frequencies of stay cables in bridge are studied by finite element method (FEM). Dynamic responses of stay cables under supports’ excitations are calculated through theoretical method and FEM. Results show that the in-plane fundamental frequency of a cable is higher than the corresponding out-plane frequency. With external excitations, stay cables can be excited to exhibit large amplitude vibration. Parametric vibrations of cables are not perfectly symmetrical about the equilibrium curves. Under the combined supports’ excitation and aerostatic wind action, a stay cable will vibrate around its deformed curve under self weight and aerostatic load.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mingjie Zhang
AU  - Fuyou Xu
PY  - 2016/04
DA  - 2016/04
TI  - Wind-induced Nonlinearities of Super Long Stay Cables
BT  - Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 252
EP  - 256
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-15.2016.45
DO  - 10.2991/icseee-15.2016.45
ID  - Zhang2016/04
ER  -