Sensitivity analysis in seismic reliability of an urban self-anchored suspension bridge

2022 ◽  
Vol 164 ◽  
pp. 108231
Author(s):  
Zhiyuan Xia ◽  
Ser Tong Quek ◽  
Aiqun Li ◽  
Jianhui Li ◽  
Maojun Duan ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Suspension Bridge ◽  
Seismic Reliability

Optimizing tuned mass damper parameters to mitigate the torsional vibration of a suspension bridge under pulse-type ground motion: A sensitivity analysis

2019 ◽  
Vol 26 (11-12) ◽  
pp. 1054-1067 ◽  
Author(s):  
Seyyed Hossein Hossein Lavassani ◽  
Hamed Alizadeh ◽  
Peyman Homami
Keyword(s):  
Sensitivity Analysis ◽  
Torsional Vibration ◽  
Passive Control ◽  
Suspension Bridge ◽  
Tuned Mass Damper ◽  
Gyration Radius ◽  
Suspension Bridges ◽  
Torsional Mode ◽  
Mass Damper ◽  
Pulse Type

Suspension bridges are structures that because of their long span and high flexibility can be prone to ambient vibrations such as ground motions. They can experience high amplitude vibrations in torsional mode during an earthquake, where a vibration control strategy seems necessary. Recently, control systems have been widely used to mitigate vibration of structures. Tuned mass damper is a passive control system. Its performance and effectiveness have been verified both theoretically and practically. In this study, a tuned mass damper system is used to mitigate the torsional vibration of a suspension bridge. The Vincent Thomas suspension bridge is selected as a case study, and its response is reduced by a tuned mass damper under ten pulse-type records from 10 major worldwide earthquakes. By using sensitivity analysis, a parametric study is carried out to optimize tuned mass damper parameters, namely, mass ratio, gyration radius, tuning frequency, and damping ratio according to the maximum reduction of the response maxima. Finally, the optimum range of each parameter that can give the best performance and provide both operational and economic justification for the implementation of the project is suggested. The numerical results indicate that the optimized tuned mass damper system can substantially reduce the maximum response and vibration time.

Sensitivity Analysis of Model Parameters in Seismic Reliability Assessment Model of Water Supply Systems

2017 ◽  
Vol 17 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Do Guen Yoo ◽  
◽  
Doosun Kang ◽  
Moojong Park ◽  
Jin Gul Joo ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Water Supply ◽  
Reliability Assessment ◽  
Assessment Model ◽  
Water Supply Systems ◽  
Model Parameters ◽  
Seismic Reliability ◽  
Supply Systems

scholarly journals Parametric Sensitivity Analysis on the Buffeting Control of a Long-Span Triple-Tower Suspension Bridge with MTMD

2017 ◽  
Vol 7 (4) ◽  
pp. 395 ◽  
Author(s):  
Tianyou Tao ◽  
Hao Wang ◽  
Chengyuan Yao ◽  
Xuhui He
Keyword(s):  
Sensitivity Analysis ◽  
Suspension Bridge ◽  
Parametric Sensitivity ◽  
Parametric Sensitivity Analysis ◽  
Long Span
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