Soil interactions aging effect

Tests may be conducted either on the site or in a laboratory. On-site testing of equipment and components should be hmited to a few quahfication aspects since it proves expensive and often conflicts with accessibility. It represents a rehable strategy for the evaluation of real support, boundary conditions and ageing effects. On-site testing of structures is often the only means of capturing the actual properties of materials, global structural seismic behaviour and the effects of soil-structure interactions, and it should be carried out whenever feasible to provide results as a reference for similar structures. 

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