A5074476719- Structural Health Monitoring Techniques
- Fatigue and fracture mechanics
- Railway Engineering and Dynamics
- Seismic Waves and Analysis
- Structural Engineering and Vibration Analysis
- Wind and Air Flow Studies
- Structural Load-Bearing Analysis
- Infrastructure Maintenance and Monitoring
Zhejiang University of Technology
2020
A Markov chain model was introduced to study the crack propagation law of butt welds in U-ribs orthotropic steel decks a long-span box girder suspension bridge, such as Xihoumen Bridge. First, time–frequency characteristics long-term strain monitoring data Bridge were analyzed. wavelet wave analysis used separate stress–time history bridge deck structure caused by environmental temperature. Moreover, eliminate low-amplitude stress variation random excitation and measurement noise,...
Structural health monitoring systems provide many advantages for full-scale measurements in bridge monitoring. In this study, a strong landing typhoon event recorded at the Jintang Bridge (Zhejiang Province, China) 2019 was selected to study nonstationary wind and cable vibration characteristics. To characteristics of typhoon, time-varying mean extracted based on adaptive method wavelet-matrix transform. The Typhoon Lekima, including turbulence intensity, gust factor, fluctuating power...
The research is based on a composite large-span double-tower single plane cable stayed bridge with the span of (54 m+108 m+340 m+54 m) in Zhejiang Ningbo Zhoushan port, main girder which faces problem complex large aspect ratio and remarkable shear lag effect. To study effect cable-stayed influence width-variant effect, we studied mechanical behavior stress distribution by combining mixed finite element method field measurement, obtained coefficient top bottom slab finished state. results...