Abstract: A portable floor system has a plurality of modular floor sections each formed by floorboards and a subfloor for support and each having either a tongue or a groove at its periphery. A plurality of spaced-apart floor joists extend downwardly from the subfloor. The tongues and grooves are matingly arranged. Mounted to the undersurface of each floor section are one or more wedging clips configured to cooperate with a clip of an adjacent section to interconnect adjacent floor sections.

Abstract: An earthquake resistant mount is made up of two monoblock elements of a hard rotproof material possessing great resistance to abrasion for supporting buildings and constructions. The earthquake resistant mount is secured to the infrastructure and to the superstructure of the building. A first monoblock element is formed of a preferably circular horizontal rubbing plate including a cone frustrum at its center. A second monoblock element has the shape of a circular cap with a flat blind end and covers the first element so that said blind end of the concavity is in contact with the horizontal plane situated at the top of the cone frustrum, and the horizontal peripheral edge is in contact with the rubbing plate. An annular space is furnished between the internal lateral wall of the circular cap and the lateral wall of the cone frustrum, and the horizontal peripheral edge is in contact with the rubbing plate.