Effect of cable vibration on aerostatic response and dynamics of a long span cable-stayed bridge

Rujin Ma, Xinzhong Chen, Airong Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, the static response and dynamic modal properties of a cable-stayed bridge with a main span of 1088m under strong winds are addressed focusing on the effect of cable vibration on overall bridge behavior. Two modeling systems for stay cables are considered in the finite element modeling of the overall bridge, i.e., one element cable system (OECS) and multiple element cable system (MECS). The aerostatic analysis under varying wind speeds and angles of attack is conducted with an iterative procedure taking into account the nonlinearities of wind forces and cables. The modal analysis is then performed under the statically deformed conditions to quantify the changes in bridge modal properties with increasing wind speed. The analysis results are further compared with the measurements using a full aeroelastic bridge model in a wind tunnel. The results of this study revealed the importance of using the MECS for accurate modeling and response prediction of long span cable-stayed bridges to strong winds.

Original languageEnglish
Title of host publicationNew Horizons and Better Practices
DOIs
StatePublished - 2007
Event2007 Structures Congress: New Horizons and Better Practices - Long Beach, CA, United States
Duration: May 16 2007May 19 2007

Publication series

NameNew Horizons and Better Practices

Conference

Conference2007 Structures Congress: New Horizons and Better Practices
CountryUnited States
CityLong Beach, CA
Period05/16/0705/19/07

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  • Cite this

    Ma, R., Chen, X., & Chen, A. (2007). Effect of cable vibration on aerostatic response and dynamics of a long span cable-stayed bridge. In New Horizons and Better Practices (New Horizons and Better Practices). https://doi.org/10.1061/40946(248)80