ABSTRACT
As the key components of transportation systems, bridges play a pivotal role in social and economic development. However, they are constantly exposed to harsh environments and suffer complex external loadings (e.g., highway traffic, railway traffic, wind, waves, earthquakes, and ship collisions). This induces damage to the structural elements of bridges and degrades their mechanical performances. As a result,
8.1 Introduction ..................................................................................................269 8.2 Structural Health Monitoring System of the Composite Arch Bridge ......... 271
8.2.1 Structural Features of the Composite Arch Bridge .......................... 271 8.2.2 Design and Implementation of the Structural Health Monitoring
System ............................................................................................... 272 8.2.3 Description of FBG-Based Structural Monitoring System .............. 273
8.3 Structural Stress Monitoring Using FBG-Based Strain Sensors .................. 274 8.3.1 Fundamentals of FBG-Based Strain Sensors ................................... 274 8.3.2 Deployment of FBG-Based Strain Sensors ...................................... 275 8.3.3 Analysis of Long-Term Strain Monitoring Data ............................... 278
8.3.3.1 Strain Monitoring Data from Selected FBG Sensors ........ 278 8.3.3.2 Separating Temperature Effect Using Wavelet
Multiresolution Analysis .................................................... 282 8.4 Cable Force Monitoring Using FBG-Based Stress Ring Sensors ................288
