Wind Actions On Cable-supported Bridges

Due to the flexibility of cable-supported bridges, the motion-induced wind loads on the structure are of great importance and the design of cable-supported bridges requires advanced dynamic analyses. Typically, the aerodynamic bridge deck data used in these analyses are based on wind tunnel test results.

The physical phenomena caused by motion-induced wind loads, which may occur on badly designed cable-supported bridges, cover buffeting flutter, galloping and vortex shedding. Such phenomena may be crucial for the bridge and it is important to consider these effects during the design phase.

SOH Wind Engineering has specialized knowledge concerning the interpretation of wind tunnel test results and their application in combination with theoretical time domain and spectral analyses in the design of cable-supported long span bridges.

SOH Wind Engineering has been involved in numerous bridge projects all over the world including the United States, Canada, Norway, and Vietnam.

Among the services that SOH Wind Engineering provides regarding bridges are:

  • Estimation of extreme winds at the bridge site
  • Wind tunnel tests
  • Theoretical calculations
  • Structural vibrations
  • Wind-induced traffic accidents on the bridges

SOH Wind Engineering carries out wind tunnel tests with section models investigating buffeting-induced vibrations, vibrations induced by flutter, vortex shedding and galloping, and static load coefficients. Subsequent analysis determining aerodynamic derivatives and aerodynamic admittance functions used in the theoretical wind action predictions are also carried out.

E-mail all requests for testing or calibrations to info@sohwind.com.