Bearing structure element of a floor for an upgradeable structure with a metal framework for parking vehicles which does not comprise transverse joints

摘要

The element (2) has a base plate (5) fixed on a lower end of a metal post (4). A head (6) supports a floor (10) secured to an upper end of the post. A holding part (7) is fixed on the head and equipped with a fixing unit for fixing an upper support structure element (20). A reservation part partially covers the holding part in a removable manner. The holding part comprises a body (70) that is fixed on the head and prolonged to a turntable (71). The fixing unit includes openings that are formed on the turntable for passing a screw. Independent claims are also included for the following: (1) a method for assembling an installation (2) a method for raising an installation.