GB1564207A - Roof structure - Google Patents

Description

(54) ROOF STRUCTURE (71) We, FLEXIFORM ELEMENT AB, a Company organised under the laws of Sweden of S810 60 Siidersfors, Sweden do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention relates to a roof structure suitable for use in living quarter containers. It has been found convenient when building living quarters on board ships and on platforms for off-shore oil drilling to construct said quarters as units of the same type as containers for sea transport. In this connection problems have arisen with the roof construction for obtaining drainage of water and heat insulation.The invention has for its purpose to solve these problems by means of a roof construction comprising a girder with a profile that meets the said demands in a simple and efficient way.

In accord with the invention, the girder has a vertical central web, a first flange extending sideways from the lower edge of the central web, a first side web extending upwards from the edge of said first flange, a second flange extending sideways in the opposite direction from the upper edge of said central web and a second side web extending downwards from said second flange. The roof is supported by said first side web, and the groove formed by the first side web, the central web and the first flange form a gutter for water from the roof.

The invention will now be further illustrated by way of example in the following disclosure with appended drawings showing In Figure I, a cross section of a part of a living quarter container with a roof construction according to the invention and in Figure 2, a connection between two roof constructions according to the invention.

Figure 1 shows part of a living quarter container comprising a wall 10, a floor 11 and a roof 12. The roof is carried by a girder 13 composed of two U-sections combined to form an S-section, a first U-groove 14 facing upwards, and a second U-groove 15 facing downwards. The first U-groove 14 is formed by a central web 16, a first side web 17 and between said webs a first flange 21 forming the bottom of the groove. The second U-groove 15 is formed by the central web 16, a second flange 23 forming the bottom of the U-groove and a second web 18. The roof is formed by a roof slab 20 and a ceiling slab 22.

The side web 17 and preferably also the side web 18 are conveniently substantially, about 2 to 3 times higher than the central web 16. The side web 17 that is directed upwards has at its upper edge a small flange 19 which supports the roof slab 20, of for instance corrugated sheet. The ceiling slab 22 is supported by the flange 21 and/or web 17 or possibly by the wall 10. The space between the roof slab 20 and the ceiling slab 22 serves as an insulating space and also as a space for tubes, cables and similar. The U-shaped portion 14 serves as a gutter for water from the roof, said water being led down into the gutter by a dropping fillet 24.

The gutter 14 leads the water to a vertical drain-pipe (not shown), for instance in a corner of the container. The ceiling portion 22 below the girder portion 21 is thinner than the rest of the ceiling in order to led heat through and, if necessary, to melt ice in the gutter 14. The webs 16,17, 18 and the flanges 21 and 23 are preferably plane and all meet at right angles.

The ends of the girder 13 are supported on end walls (not shown) and the girder is unsupported therebetween. The U-shaped portion 15 which is formed by the web 16, the web 18 and the flange 23 enbraces the upper part of the wall 10 and holds the wall in its proper position. The web 18 is terminated by a short horizontal flange 25 which forms a dropping fillet.

Figure 2 shows girders 13 in two adjacent containers, and the two raised portions 15a that are formed by the downwardly open U-section are covered by a sheet 26 that prevents water from leaking down between the walls.

The girder is conveniently made of steel sheet with a thickness of 3 to 5 mms which first is galvanized and coated with plastic and is then bent to the desired profile.

The advantage of the described roof structure is that it utilizes a girder having a simple shape fulfilling several functions simultaneously supporting both roof and ceiling, forming a drain for water and holding the walls in their proper place.

In addition to its use in living quarter containers, the described roof structure can be used also for other simular structures, for instance temporary living quarters such as offices, barracks, and sleeping accomodations.

WHAT WE CLAIM IS: 1. Roof structure comprising a girder having a vertical central web, a first flange extending sideways from the lower edge of the central web, a first side web extending upwards from the edge of said first flange, a second flange extending sideways in the opposite direction from the upper edge of said central web and a second side web extending downwards from said second flange, the roof being supported by said first side web, and the groove formed by the first side web, the central web and the first flange forming a gutter for water from the roof.

2. Roof structure as defined in claim 1, in which the first side web has a horizontal flange supporting a roof slab.

3. Roof structure as defined in claim 1 or 2, in which the second side web and the central web hold between them the upper part of a side wall.

4. Roof structure as defined in any of claims 1 to 3, in which the roof has a ceiling plate which is carried by the first flange and/or the second web.

5. Roof structure as defined in any of claims 1 to 4, in which the side webs have a substantially greater depth than the central web.

6. Roof structure as defined in any of claims 1 to 5, in which the second side web at its lower edge has a horizontal flange.

7. Roof structure as defined in any of claims 1 to 6, in which the webs and flanges are plane and meet at right angles.

8. A roof structure substantially as described herein with reference to the accompanying drawings.

9. A container for use as living quarters having a roof structure as claimed in any one of the preceeding claims.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. terminated by a short horizontal flange 25 which forms a dropping fillet. Figure 2 shows girders 13 in two adjacent containers, and the two raised portions 15a that are formed by the downwardly open U-section are covered by a sheet 26 that prevents water from leaking down between the walls. The girder is conveniently made of steel sheet with a thickness of 3 to 5 mms which first is galvanized and coated with plastic and is then bent to the desired profile. The advantage of the described roof structure is that it utilizes a girder having a simple shape fulfilling several functions simultaneously supporting both roof and ceiling, forming a drain for water and holding the walls in their proper place. In addition to its use in living quarter containers, the described roof structure can be used also for other simular structures, for instance temporary living quarters such as offices, barracks, and sleeping accomodations. WHAT WE CLAIM IS:

1. Roof structure comprising a girder having a vertical central web, a first flange extending sideways from the lower edge of the central web, a first side web extending upwards from the edge of said first flange, a second flange extending sideways in the opposite direction from the upper edge of said central web and a second side web extending downwards from said second flange, the roof being supported by said first side web, and the groove formed by the first side web, the central web and the first flange forming a gutter for water from the roof.

2. Roof structure as defined in claim 1, in which the first side web has a horizontal flange supporting a roof slab.

3. Roof structure as defined in claim 1 or 2, in which the second side web and the central web hold between them the upper part of a side wall.

4. Roof structure as defined in any of claims 1 to 3, in which the roof has a ceiling plate which is carried by the first flange and/or the second web.

5. Roof structure as defined in any of claims 1 to 4, in which the side webs have a substantially greater depth than the central web.

6. Roof structure as defined in any of claims 1 to 5, in which the second side web at its lower edge has a horizontal flange.

7. Roof structure as defined in any of claims 1 to 6, in which the webs and flanges are plane and meet at right angles.

8. A roof structure substantially as described herein with reference to the accompanying drawings.

9. A container for use as living quarters having a roof structure as claimed in any one of the preceeding claims.