Q: It looks that the displacements, as measured under the loading point 1, include the settlement of the supports. This means not only the elastomer bearings but also the testing supporting system. What is the reference of this measurement? It may be the testing floor, loading frame, etc.... Please confirm.

A: This is indeed the case, the deflection includes the displacement of the elastomeric bearings. The displacement is measured by a laser placed on the lab floor, so this can also taken as the measure reference.