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《Earthquake Engineering and Engineering Vibration》 2006-05
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Analysis of influence of traveling-wave effect on vibration-suppressing effectiveness of bridge by different vibration control methods

Qi Xingjun~(1),Li Xiaojun~(2),Lu Tao~(1) (1.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China; 2.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China)  
The analysis approach to active,semi-active and passive control for long-span bridges under seismic traveling-wave inputs is presented.The seismic response calculation for a four span continuous rigid-framed bridge under seismic traveling-wave inputs is performed.The vibration-suppressing effectiveness of seismic responses for lognitudinal and transverse bridges is analyzed with eight vibration control methods.The results indicate that traveling-wave effect can evidently reduce the vibration-suppressing effectiveness of seismic responses in longitudinal bridge direction with eight vibration control methods for the continuous rigid-framed bridge.The maximal switch control algorithm is better for the vibration-suppressing effectiveness of longitudinal bridges correspondingly.The maximal damping force passive control algorithm and the maximal switch control algorithm are better for the vibration-suppressing effectiveness of transverse bridges correspondingly.With these two control methods,the traveling-wave effect does not influence the total vibration-suppressing effectiveness of transverse bridges intensively.
【Fund】: 国家自然科学基金重点项目(50439030)
【CateGory Index】: U441
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