Progressive finite element model calibration of a long-span suspension bridge based on ambient vibration and static measurements

2010 ◽  
Vol 32 (9) ◽  
pp. 2546-2556 ◽  
Author(s):  
Hao Wang ◽  
Ai-qun Li ◽  
Jian Li
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Calibration ◽  
Suspension Bridge ◽  
Element Model ◽  
Ambient Vibration ◽  
Long Span ◽  
Finite Element Model Calibration

scholarly journals Wind-driven damage localization on a suspension bridge

2016 ◽  
Vol 11 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Marco Domaneschi ◽  
Maria Pina Limongelli ◽  
Luca Martinelli
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Damage Identification ◽  
Structural Response ◽  
Suspension Bridge ◽  
Element Model ◽  
Damage Localization ◽  
Damage Scenarios ◽  
Long Span Bridges ◽  
Long Span

The paper focuses on extending a recently proposed damage localization method, previously devised for structures subjected to a known input, to ambient vibrations induced by an unknown wind excitation. Wind induced vibrations in long-span bridges can be recorded without closing the infrastructure to traffic, providing useful data for health monitoring purposes. One major problem in damage identification of large civil structures is the scarce data recorded on damaged real structures. A detailed finite element model, able to correctly and reliably reproduce the real structure behavior under ambient excitation can be an invaluable tool, enabling the simulation of several different damage scenarios to test the performance of any monitoring system. In this work a calibrated finite element model of an existing long-span suspension bridge is used to simulate the structural response to wind actions. Several damage scenarios are simulated with different location and severity of damage to check the sensitivity of the adopted identification method. The sensitivity to the length and noise disturbances of recorded data are also investigated.

Finite Element Model Calibration for Ares I-X Flight Vehicle

2011 ◽  
Vol 51 (8) ◽  
pp. 1251-1263
Author(s):  
L. G. Horta ◽  
M. C. Reaves ◽  
R. D. Buehrle ◽  
J. D. Templeton ◽  
D. R. Lazor ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Calibration ◽  
Element Model ◽  
Flight Vehicle ◽  
Finite Element Model Calibration ◽  
Ares I

Modal Experiment and Analysis of a Self-Anchored Suspension Bridge

2014 ◽  
Vol 530-531 ◽  
pp. 284-288
Author(s):  
Jian Rong Yang ◽  
He Xian Su ◽  
Zheng Chong Lai
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Suspension Bridge ◽  
Element Model ◽  
Ambient Vibration ◽  
Original Design ◽  
Element Analysis ◽  
Actual Structure ◽  
3D Finite Element ◽  
Finite Element Package

Modal experiment and 3D finite element analysis are performed on a newly-built self-anchored suspension bridge. The structural modal parameters are identified under ambient vibration excitation. Before that, a 3D finite element model of the bridge is generated using a commercially available finite element package. The measured data as well as the calculated are compared carefully. It illustrates that both of them are in reasonable concordance. The natural frequency of the actual structure is relatively higher than that of finite element model which means the actual bridge is much stiffer than its original design model.

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