The Damage Identification of Bridges Based on Structural Deflection and Wavelet Transform

Ying Hui Xue; Hai Qing Liu

doi:10.4028/www.scientific.net/AMR.374-377.2533

Paper Titles

Effect of Lap Gap on the Frictional Performance of Shear-Type Friction Damper
p.2513

Cooperation Pullout Test of Double Self-Tapping Screws in Wood Structures
p.2520

State-Space Solution of Estuary Bed Responses Subjected to Extreme Hydrodynamic Conditions. I: Tidal Bore
p.2525

State-Space Solution of Estuary Bed Responses Subjected to Extreme Hydrodynamic Conditions. II: Storm Surge
p.2529

The Damage Identification of Bridges Based on Structural Deflection and Wavelet Transform
p.2533

The Study of Optimal Design Method for Safe Monitoring in Tunnel
p.2538

Seismic Response Reduction of the Hybrid Seismic Isolation System Based on the SMA Rubber Bearing Combined with Magneto Rheological Damper
p.2543

The Damage Evolution of Concrete Structure under Earthquake
p.2548

On Bracing Strut Failure in the Framed Arch Bridge and a New Method for its Restoring & Reinforcing
p.2553

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 374-377The Damage Identification of Bridges Based on...

The Damage Identification of Bridges Based on Structural Deflection and Wavelet Transform

Abstract:

Wavelet transform can characterize the local features of the signal in the time domain and frequency domain, enlarges and identifies the mutation signal of the structural response at different scales as a new signal analysis tools. In this paper, based on the structural deflection curve, propose a wavelet-based method to identify the beam structural damage. Use wavelet function to decompose the deflection curve of the structure after injury. Determine the existence of damage by the change and distribution of wavelet transform coefficients, determine the damage location, and simulate a cantilever bridge to verify this method.