The bridge dynamic properties monitoring

Dynamic Bridge Substructure Evaluation and Monitoring

FOREWORD This research project was performed to investigate the possibility that, by measuring the dynamic response characteristics of a bridge substructure, it might be possible to determine the condition and safety of the substructure and identify its foundation type (shallow or deep). Determining bridge foundation conditions with this approach may be applied to quantify losses in foundation ...

An Investigation Into the Vehicle-Curved Bridge Dynamic Interaction

Monitoring Bridge Dynamic Responses Using Fiber Bragg Grating Tiltmeters

In bridge health monitoring, tiltmeters have been used for measuring rotation and curvature; however, their application in dynamic parameter identification has been lacking. This study installed fiber Bragg grating (FBG) tiltmeters on the bearings of a bridge and monitored the dynamic rotational angle. The dynamic features, including natural frequencies and mode shapes, have been identified suc...

Dynamic properties of molecular motors in burnt-bridge models

Abstract. Dynamic properties of molecular motors that fuel their motion by actively interacting with underlying molecular tracks are studied theoretically via discretestate stochastic “burnt-bridge” models. The transport of the particles is viewed as an effective diffusion along one-dimensional lattices with periodically distributed weak links. When an unbiased random walker passes the weak lin...

Dynamic Properties of a Radiometric Monitoring System

On-line radiometric monitors (nuclear meters) have been in use in the industry for many years. They have been utilised for coal quality monitoring, in the control systems for coal blending, or for separating coals in the heavy media separation process. Their operation is based on the scattering or the absorption of incident gamma radiation, and the derived density or ash value is the result of ...