The development of structural health monitoring systems for bridge structures necessitates improvements in the understanding of vehicle-bridge interactions. Direct measurement of the complex coupling that naturally exists between vehicles and bridges is a challenging undertaking due to the limitations of existing sensor technologies. However, the emergence of wireless sensors in the field of st...

Rayleigh, Brillouin and Raman scatterings in fibers result from the interaction of photons with local material characteristic features like density, temperature and strain. For example an acoustic/mechanical wave generates a dynamic density variation; such a variation may be affected by local temperature, strain, vibration and birefringence. By detecting changes in the amplitude, frequency and ...

Abstract Costal bridge systems usually contain tall piers with heights over 40 m, due to the engineering site exposed deep water circumstances. Note that conventional seismic isolation devices (e.g., bearings) are not effective for piers, since their dynamic performance is significantly affected by distributed mass and vibration modes of columns; therefore, base design philosophy could be a pro...

This paper briefly outlines the rationale for structural health monitoring as an integral component of bridge management systems. Two different approaches, system identification and statistical pattern recognition, are summarised and applied in turn to vibration data collected from three scale model-reinforced concrete bridges. The results show that the system identification paradigm can succes...

The accelerometer, laser vibrometer and displacement sensor are used to detect faults and estimate the vibration of large structures such as buildings, bridges and pipes. However, it is difficult to estimate vibration using the existing method of attaching a sensor and measuring radiation exposure at a high temperature and radioactivity where the sensor is applied. Therefore, we need a method t...