Experimental Research on Structural Damage Alarming of Benchmark Structure Based on Empirical Mode Decomposition

Li Lin Cao; Ai Qun Li; Yang Deng

doi:10.4028/www.scientific.net/AMR.243-249.61

Paper Titles

Experimental Analysis of the Slip Phenomenon of Sewage Sludge
p.41

The Compressive Behavior of Horizontally Casted Concrete Filled Steel Tubular Members with Consideration of the Process of Concrete Casting
p.45

Finite Element Analyze for a Connection between Steel Reinforced Concrete Filled with Steel Tube Column and Steel Beam
p.51

Modeling of Rock and Soil Aggregate under the Condition of Uniaxial Compression
p.55

Experimental Research on Structural Damage Alarming of Benchmark Structure Based on Empirical Mode Decomposition
p.61

Time History Analysis of Seismic Response of Novel Core-Tube Vibration-Reduction Suspended Structures
p.67

Design of Long-Span and Wave-Shaped Steel Canopy Structure of Ningxia Helan Mountain Stadium
p.72

Two-Dimensional Capacity Spectrum Method and Seismic Damage Assessment for RC Structures
p.79

Inverse Heat Conduction Problem of the Temperature Field with Artificial Ground Freezing Method
p.89

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Experimental Research on Structural Damage...

Experimental Research on Structural Damage Alarming of Benchmark Structure Based on Empirical Mode Decomposition

Abstract:

A structural damage alarming method is proposed using empirical mode decomposition. The basic idea of this method is that with respect to the intact model and damaged models, the energy redistribution of the intrinsic mode functions decomposed from the structural response can represent the variation of the structural dynamic characteristics caused by the structural damage. By taking the Benchmark test model as the research object, the structural dynamic responses from the hammer-impact tests are collected then the damage alarming parameters and the damage alarming indices are evaluated. The experimental results reveal that the structural damage alarming indices based on empirical mode decomposition is able to effectively detect the structural initial damage with preferable damage alarming capacity.