Dynamic bridge assessment

“Run-repair-replace” scope and timing decisions are reliant on quality assessment data gathered from in-place measurement of infrastructure.

The information gathered from our monitoring and assessment services is able to inform engineers and managers deciding what course of action is necessary. Often driven by visual inspections or detection of cracks, defects, and large deflections, non-destructive techniques can be readily deployed to seamlessly stream real-world measurements on levels of displacements and accelerations subject to in-service dynamic loading or parameters relevant to slower degradation processes.

Mote is experienced in providing a breadth of technologies used in not only routine inspections and assessments but also in long-term monitoring. Crackmeters can inform on sub-critical crack growth or convergence across surface cracks and joints. Tiltmeters can measure the twist of bridge decks and also the inclination of the pylons of cable-stayed bridges. Vehicular traffic, strong wind, and earthquake may impose dynamic loads on bridge structures. These vibrations are recorded and analysed using high-resolution accelerometers, with pre-analysed, summary, or selected data-sets transmitted. Decision-makers will have improved information on dynamic characteristics of bridges and valuable, quantitative data for further assessment.

Gordonton Bridge Project

Measurement of bridge deflections and crack opening subject to controlled dynamic loading.