Damage Identification of Arch Bridge Based on Curvature Mode Wavelet Analysis

De Qing Guan; Xiao Lin Zhong; Hong Wei Ying

doi:10.4028/www.scientific.net/AMM.166-169.1176

Paper Titles

Study on Accumulated Ductility Coefficient of Concrete Filled Steel Tubular Columns Based on Experimental Results
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Finite Element Investigation on Ultimate Strength of Bolted Connections
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Optimal Sensors Placement Based on Modal Strain Energy
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A Multi-Hierarchical Damage Identification Method for Jacket Platform Using BP Neural Network
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Damage Identification of Arch Bridge Based on Curvature Mode Wavelet Analysis
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Deformation Monitoring Data De-Noising Processing Based on Wavelet Packet
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Mechanism and Dynamic Behavior of a Novel Hydraulic Force Pulse Generator
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Sensibility Analysis on the Shearing Strength Parameters of Sliding Surface
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Experimental Study of Two-Dimensional Elastic Thin Plate Damage Identification Method Based on Modal Curvature
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Damage Identification of Arch Bridge Based on Curvature Mode Wavelet Analysis

Abstract:

Based on the curvature modal damage identification of wavelet analysis principle, the finite element method was applied to analyze the vibration characteristics of the damaged deck arch bridge. Take Haar wavelet as the mother wavelet, through the continuous wavelet transform of curvature mode and then identified the damaged position by the maximum of wavelet coefficients. analyze the damage identification problem under three different damaged conditions (condition 1: only the arch 1 contained one damaged location; condition 2: the arch 1 and the arch 2 contained one damaged location respectively; condition 3: the arch 1 contained two damaged locations and the arch 2 contained one damaged location).This paper provided a valuable reference of damage identification and diagnosis for arch bridge.