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The reinforcement of the asphalt strengthens the surfacing in the area where it is most prone to deformation, preventing rutting.
The rubber and steel laminated bearing is designed to support the weight of the structure and to provide post-yield elasticity. Rubber provides the isolation and the re-centring of the bearing after a seismic event.
Tuned mass dampers are used, as passive damping systems, to reduce the natural frequencies of bridges, slabs, platforms and other structures. The optimum combination of mass, frequency and damping can substantially reduce structural vibrations.
The use of a monitoring system can enable the life-cycle cost of an expansion joint to be optimised. Using such a system, the structure’s behaviour can be assessed on the basis of continuously measured parameters, with data viewable online at any time of day or night.