Modal Parameters Identification of Bridge Structure Based on Excitation of Wind Load

Abstract:

Applying the combination of the natural excitation technique and the Eigen system realization algorithm, a finite element numerical simulation was performed for the dynamic behavior identification of a pre-stressed concrete continuous beam bridge under simulating wind load excitation. The results were validated comparatively using the combined algorithm of random decrement technique and Ibrahim time domain technique as well as the finite element modal analysis. The simulation results show that the wind load as the most common environmental excitation can be used effectively to identify the modal parameters of the concrete bridge.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1660-1663
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1660
• Online since: September 2013
• Authors: Hao Jiang*, Guang Wei Meng, Bao Wei Xiong
• Keywords: Modal Parameter Identification, NExT, Numerical Simulation, Wind Load Excitation

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