TY - RPRT

T1 - Suspension Bridge Flutter for Girder with Separate Control Flaps

A1 - Huynh,T.

A1 - Thoft-Christensen,Palle

AU - Huynh,T.

AU - Thoft-Christensen,Palle

PB - Dept. of Building Technology and Structural Engineering

PY - 2000///

Y1 - 2000///

N2 - Active vibration control of long span suspension bridge flutter using separated control flaps (SFSC) has shown to increase effectively the critical wind speed of bridges. In this paper, an SFSC calculation based on modal equations of the vertical and torsional motions of the bridge girder including the flaps is presented. The length of the flaps attached to the girder, the flap configuration and the flap rotational angles are parameters used to increase the critical wind speed of the bridge. To illustrate the theory a numerical example is shown for a suspension bridge of 1000m+2500m+1000m span based on the Great Belt Bridge streamlined girder.

AB - Active vibration control of long span suspension bridge flutter using separated control flaps (SFSC) has shown to increase effectively the critical wind speed of bridges. In this paper, an SFSC calculation based on modal equations of the vertical and torsional motions of the bridge girder including the flaps is presented. The length of the flaps attached to the girder, the flap configuration and the flap rotational angles are parameters used to increase the critical wind speed of the bridge. To illustrate the theory a numerical example is shown for a suspension bridge of 1000m+2500m+1000m span based on the Great Belt Bridge streamlined girder.

KW - SFSC

KW - Bridge Girder

KW - Motion-Induced Forces

KW - Modal Analysis

KW - Suspension Bridge

KW - Flutter

KW - CAE

KW - Maple V

KW - Motion-Induced Forces

KW - Modal Analysis

KW - Suspension Bridge

KW - Flutter

KW - CAE

KW - Maple V

KW - SFSC

KW - Bridge Girder

BT - Suspension Bridge Flutter for Girder with Separate Control Flaps

ER -