FI70964B - TORRMONTERADE GOLV - Google Patents

Description

70964

Dry-installed floors. - Torrmonterade golv.

The invention relates to a dry-installed floor, i.e. a floor of the type in which no wet concrete or the like has been used for the base support structure, but the components have been placed in a prefabricated space.

Dry-installed floors have been known for centuries, and it is still common practice to install boards transversely on floor supports to form such a floor.

However, when a heavy-duty floor has been required, for example in factories, it has been common practice to manufacture solid floors using wet concrete.

In recent years, suspended floors have been installed on concrete or steel beams. A reinforced concrete slab is often cast in place on such beams using a mold between the beams. An example of this type of floor is disclosed in UK Patent Publication No. 2053313.

It is arranged in parallel, upside-down T-shaped beams and panels are mounted between the beams resting on flanges formed by the cross-section of the T.

The wet concrete is then applied to the panels and beams and allowed to harden. The ends of the panels next to the beams are bevelled, forming a triangular portion with each end of each panel and the adjacent vertical wall of the corresponding beam. The resulting gap is filled with concrete to form concrete frames along the beams supporting the concrete floor.

In this prior art patent, the panels forming the mold have been left in place and are made of a material with good thermal insulation properties, preferably foamed polystyrene. Foamed polystyrene supports uncured concrete during floor construction, but has no in the finished floor. The curable concrete shrinks off the panels and the slab is entirely supported by the beams.

An additional to the prior art brought about by the said UK patent publication is the improvement in insulation provided by the insulating elements made of foamed polystyrene around the lower surface of the beams.

It is also common practice to use dry-installed floors supported by beams. Concrete trowels are installed dry on top of beams. Thermal insulation in floors of this type is provided by sheets of foamed polystyrene mounted on top of tiles or beams and with a wood panel covering. Wood panels distribute the load during use and prevent local damage to the polystyrene layer. The polystyrene layer is thin and has no supporting function.

Foamed polystyrene is widely used for insulation purposes in both dry-laid and wet-laid floors. In the finished floor, it is always used for insulation purposes only. The inventor of the floor in question has now made the amazing observation that it is possible to use foamed polyethylene members for load-bearing supports on the floor. This allows dry-laid floors to be built without the use of concrete slabs. The floor is therefore much lighter than conventional floors, much easier to install and much cheaper and the support members also offer initially excellent thermal insulation properties.

The present invention provides a dry-mounted floor comprising 70964 parallel, spaced-apart beams, a plurality of foamed plastic members mounted on top of the beams, and a topsheet thereon, wherein the foamed plastic members are blocks supporting the topsheet and serving as a flooring. . The blocks made of foamed plastic are more suitably polystyrene blocks and the top layer may be formed of boards.

The blocks may be mounted on the top surfaces of the beams or the beams may have flanges below the top surfaces to support the blocks. In the latter case, the blocks also preferably have flanges which extend above the ends of the beams, forming a continuous flat top surface.

The distance between the support surfaces of the blocks of adjacent beams is preferably at most 900 mm and most preferably at most 600 mm. The height of each block above the support surface is preferably at least Θ0 mm and most preferably at least 100 mm.

The invention also includes a method of constructing a dry-mounted floor having parallel, spaced-apart beams, the method comprising mounting blocks made of foamed plastic on the beams as a bridge over an opening between the beams to form load-bearing members. The blocks are preferably polystyrene blocks and their upper surface may be glued with wooden panels or the wooden panels are otherwise mounted on top of the blocks.

Reference is made below to the accompanying drawings, in which:

Figure 1 shows a schematic section of a part of a dry-installed floor according to the invention.

70964 4

Figure 2 shows how the floor edge can be finished.

Figure 3 shows a variation of the floor edge finish.

Figures 4-6 show modifications of the floor shown in Figure 1.

Fig. 7 is a perspective view, partly in section, of a part of a dry-installed floor according to the embodiment of Fig. 1.

Figure 8 shows a schematic section of a part of a second embodiment of a dry-installed floor according to the invention.

The floor shown in Figures 1 and 7 comprises parallel, spaced beams 11, only two of which are shown. These beams are made of reinforced concrete and are essentially inverted T-shaped with the T-prongs forming the flanges 12. Closed cell foam blocks 13 are placed in a row between the beams over the flanges 12 to form a bridge over the gap between the beams. Each block 13 is tightly fitted between the beams. The blocks do not have reinforcing elements or reinforcing padding.

Each block has opposing edge flange portions 14 that extend partially over the top portion of each flange 11. On the opposite side of each beam, the second blocks 13a, 13b have flange portions 14a, 14b which end up against the flange portion 14 to form a continuous flat top surface. The U-panels 26 are mounted on the blocks together with a thin plastic film mounted between the panel and the blocks (not shown in Figure 1) to act as a vapor barrier.

5 70964 In this particular example, the distance between the flanges 12 is about Θ00 mm and the total width of each block, including the flange portion 14, is about 900 mm. The height of each block is about 140 mm, with about 40 mm above the top surface of the beams.

Special-edged foamed plastic blocks 20 can be used at the floor edges (Figure 2). In these blocks, the flange part 21 on the other side extends to cover the entire edge of the beam 11.

Figure 3 shows an alternative arrangement in which the flange part is omitted on one side and the block 23 has a nail 22 instead. The nail extending over the beam 11 can be filled with a panel made of foamed plastic (not shown).

Figure 4 shows a floor arrangement in which the flange parts are completely omitted and the blocks 25 extend only on the beams 11. Panels and wooden panels 26 made of foamed plastic are mounted transversely on the surface defined by the beams and blocks.

Fig. 5 shows an alternative arrangement similar to the arrangement of Fig. 1, but in which the block 30 extends to the bottom of the beams 11. This provides a flat lower surface 31 together with the bottoms of the beams, which surface can be finished as an internal ceiling.

Fig. 6 shows a similar modification of the arrangement shown in Fig. 4, in which the blocks 35 and the beams 11 form flat top and bottom surfaces 37, 3Θ.

The blocks do not have to end in the same plane as or above the bottom surfaces of the beams, but may extend below the beams.

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Instead of coating with wood, a concrete or other leveling compound can also be applied over the blocks.

Blocks made of expanded foamed plastic are more suitably polystyrene, but other foamed plastics may also be used, for example polyurethane.

Beams do not need to have flanges and the beams can be, for example, wood or steel, although beams made of prestressed concrete or reinforced concrete are most preferred. Fig. 8 shows an alternative embodiment comprising flangeless beams 111 with top surfaces 112. Blocks 113, 113a, 113b are mounted on the top surfaces 11e with the end faces substantially in contact to form a thick continuous layer of foamed plastic on the beams. The top layer 126 is mounted on the blocks.

Claims (10)

A dry-mounted floor comprising parallel, separately mounted beams (11), a plurality of foam-forming members (13, 13a, 13b) mounted on top of the beams, and an outer layer (26) located thereon, characterized in that they are made of foam plastic. The constituent members are blocks (13, 13a, 13b) which support the outer layer (26) and act as floor supporting members. Dry-mounted floor according to claim 1, characterized in that the blocks consist of foam polystyrene, Dry-mounted flooring according to claim 1 or 2, characterized in that boards (26) which are placed on top of the blocks (13, 13a, 13b) belong to the outer layer. 4. Dry-mounted floor according to one of claims 1 to 3, characterized in that the beams (11) are made of reinforced concrete or prestressed concrete. 5. Dry-mounted floor according to any preceding claim, characterized in that the beams have flanges below their outer surfaces, the blocks rest on the flanges and the blocks have upper flange parts (14, 14a, 14b), which are above the outer surface of at least one adjacent beam (11). , and they have been arranged so that the blocks form a continuous smooth upper surface, on top of which the outer layer (26) is supported. 6. Dry-mounted flooring according to any preceding claim, characterized in that the distance between the flanges of the adjacent beams adjacent to each other is not more than 900 mm.