Study on Cable-Stayed Bridge Flutter Active Control by a Single ADM

Abstract:

Wind-induced vibration of long span bridges mainly as flutter, buffeting and vortex induced vibration. Buffeting and vortex-induced vibration will not cause the devastating destruction of the bridge, while the chatter is the elastic system in the air of self-excited vibration, when the vibration system from the air flow in the absorption of energy and the energy is greater than the energy damping When consumed, they cause divergence of the self-excited aerodynamic flutter vibration. If the critical flutter wind speed is less than in the bridge office potential wind speed, the bridge flutter may occur caused devastating damage. According to modern control theory, a theoretical analysis is conducted on the active control of cable-stayed bridge flutter, it is established that the controlled equation of cable-stayed bridge controlled by a single active mass damper and the motion equation of a single AMD to determine the calculation method of the critical flutter velocity under the controlled status of the cable-stayed bridge. An example shows that a single ADM is a good means to prevent the flutter damage of long-span cable-stayed bridges.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 5071-5075
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.5071
• Online since: November 2011
• Authors: Su Qi, Xing Xing Chen, Qing Xu
• Keywords: Active Control, Cable-Stayed Bridge, Damage, Flutter, Wind Velocity

References

[1] De-Wei Chen. Cable nonlinear analysis and engineering control. Tongji University doctoral dissertation. (1990).

[2] L. Meirovitch and Ghosh, Control of Flutter in Bridge, the Journal of Engineering Mechanics . 1987, 113(5). ASCE Table1 Related Parameters of Some Cable-Stayed Bridg serial numbr main girder 1.

[17] 467.

[5] 86 2613. 34.

[10] 762.

[3] 421.

176 2.

[13] 268.

[1] 931 1734. 82.

[2] 4923.

[3] 421.

176 cable 1.

00608.

[8] 4.

3 2.

00577 3.

00523 4.

00469 5.

00462 6.

00369 7.

00319 8.

00273 main column pile 1.

[52] 98.

[14] 88 2427. 4 1591. 1.

[2] 5.

167 assisted columns and piles 1.

[6] 0.

[4] 704.

[2] 0.

[4] 5.

[2] 5.

167 2.

[7] 064.

[1] 984.

[28] 256.

[28] 256.

[2] 5.

167 3.

[7] 064.

[2] 5.

167 side column and piles 1.

[3] 2.

51.

[9] 333.

[1] 066.

[2] 5.

167 2.

[10] 6.

[2] 976.

[42] 38 113. 02.

[2] 5.

167 3.

[10] 6.

[2] 5.

167 columns 1.

[18] 0.

[70] 56.

[67] 5.

[30] 0.

[2] 5.

167 2.

[24] 0.

[72] 56.

[72] 0.

[32] 0.

[2] 5.

167 3.

[24] 0.

[2] 5.

167 link rod 1.

0005.

[8] 4.

3.