Abstract: A wedge set for use in fastening floor joists consists of two interslidable wedge members (1, 2) adapted to abut each other along cooperating first abutment surfaces (3, 10), each wedge member (1, 2) having a second abutment surface (4, 11) forming an acute angle with the corresponding first abutment surface. The second abutment surfaces (4, 11) on the two wedge members (1, 2) of the wedge set extend substantially parallel to each other. The wedge members (1, 2) have cooperating locking means (6, 7, 13, 14), which are adapted for retaining them from a mutual displacement so that the distance between their second abutment surfaces (4, 11) is reduced, and retaining means (9, 15), which are adapted for retaining the first abutment surfaces (3, 10) in abutment with each other. The first abutment surfaces (3, 10) are plane and the locking means (6) consist of ratchets.

Abstract: A wedge set for use in fastening floor joists consists of two interslidable wedge members (1, 2) adapted to abut each other along cooperating first abutment surfaces (3, 10), each wedge member (1, 2) having a second abutment surface (4, 11) forming an acute angle with the corresponding first abutment surface. The second abutment surfaces (4, 11) on the two wedge members (1, 2) of the wedge set extend substantially parallel to each other. The wedge members (1, 2) have cooperating locking means (6, 7, 13, 14), which are adapted for retaining them from a mutual displacement so that the distance between their second abutment surfaces (4, 11) is reduced, and retaining means (9, 15), which are adapted for retaining the first abutment surfaces (3, 10) in abutment with each other. The first abutment surfaces (3, 10) are plane and the locking means (6) consist of ratchets.

Abstract: A floor structure comprises a flooring arranged on top of a lower and an upper layer of parallel joists with a uniform mutual distance, the joists of one layer extending substantially perpendicular to the joists of the second layer. The lower layer of joists are arranged on chocks, at least one of which is located below the center between the upper joists arranged thereabove. Resilient spring elements are provided at the intersections between the two layers of joists. The layers of joists include prefabricated identical members fitting in one another, each member comprising a predetermined number of joists. The joists of the lower layer are equally long and project by half the joist distance of the upper layer of joists beyond the outermost joist at the adjacent end of the upper layer of joists.