FI91511C - Hard combustible floor element for shipbuilding - Google Patents

Description

91511

Hardly combustible level element for shipbuilding

The invention relates to a non-combustible planar element for shipbuilding, in particular a roof or wall element for ships or artificial islands used in offshore drilling technology, consisting of light metal profiles with chambers in the form of grooves cut open at the back, as well as at one side of each chamber. an additional chamber that is cut open at the back, with the light metal profile covered with a non-combustible wall plate.

A planar element according to the above is known per se from GB 1 190 033. In addition, U.S. Pat. No. 2,063,115 discloses a planar element with successive chambers of triangular cross-section formed on a profiled plate and lined on each side by wall plates. The chambers are filled with non-combustible material.

In shipbuilding, walls are usually the load-bearing parts of a ship. They consist of sheet metal with regularly spaced welded or beveled stiffeners. All exterior walls are insulated against heat and cold in shipbuilding. Thus, for example, a ship's wall on the market consists of a steel plate and L-profiles welded to it. Both the L-shaped profiles and the myds steel plates themselves are covered with fire-retardant mats, which are held in place by thin mounting plates. The mineral wool thus introduced must then also be provided with plates, interior walls or other protective surfaces. The overall structure has proven to be poor with its easily damaged outer surfaces. In addition, the mounting pins create unwanted heat conduction points.

The object of the invention is to provide a flame-retardant planar element which forms a dense, yet very light building element, which lacks harmful heating points.

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The element according to the invention, which is initially defined, is characterized in that dowel profiles are inserted into the chambers, which are fastened on the open sides of the chambers by means of at least one pin or screw to a non-combustible wall plate against the light metal profile.

The dowel profiles are of a non-combustible material, preferably fibrous silicate, and act as anchors for the fire retardant plates running on both sides of the profile plates. These are attached to the dowel profiles with metal studs, nails or screws without the possibility of heat-forming points.

In this way, walls suitable for shipbuilding are created which are insulated against fire and have considerably lower construction heights than known, comparable walls with corresponding strength values, which results in a considerable saving of space. In addition, the planar elements according to the invention are considerably lighter than the planar elements according to the prior art. They can also be installed quickly, which leads to a reduction in wage costs. As an added advantage, it should be noted that already when installing fire protection panels, smooth and even outer surfaces are created.

Such level elements can be used without problems for the superstructures and residential modules of drilling rigs, but also for the ship's internal structures. Especially on drilling rigs, safety regulations are very strict. For example, at a temperature of 1150 ° C, the wall must be able to bear a full static load for one hour, and on the side away from the fire, the temperature on the surface of the metal interior must not rise above 140 ° C. But since the fire may ignite in the spaces inside the myds, it is valid in the opposite direction at 970 ° C for 60 min. These preconditions are suitable for the level element according to the invention and in addition offer the advantages already described.

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According to a further feature of the invention, the metal interior or the light metal profile has two chambers opening in opposite directions, which are adjacent and delimited by three partitions formed in the profile plates, two of which form shaped cross section. This results in a very stable metal core which keeps the choice of flame retardant plates unchanged and can also be manufactured in a simple manner as an extruded light metal profile. Other embodiments of the light metal profile are described in the dependent claims and have in common that access paths are created for flame retardant dowel profiles which are supported on both sides of the profile and to which nails, screws or similar fasteners can be inserted without nails, screws or similar fasteners. lammonjohtumiskohtia.

In a specific embodiment, care is taken to ensure that the inserted dowel profile is selected from the rear wall of the chamber so that the free ends of the nails or screws end in the cavity and do not touch the light metal interior.

The same beam is served by the operation of making a gutter in the Pera wall of the chamber.

According to another feature of the invention, the width of the planar element according to the invention can be varied in such a way that a gap wall, the length of which can be selected, is arranged between the chute profile and the profile plate forming the chamber.

It has also proved advantageous to use rear-cut chambers for the insertion of known tightening pieces, which help to attach the metal parts to the light metal interior.

Additional advantages, features and details of the invention will become apparent from the following description of the preferred embodiments, as well as from the drawing, in which Fig. 1 shows a longitudinal section of a multilayer wall of a ship or rig, Fig. 2 shows as a perspective view of the light metal profile, Fig. 4 shows a second light metal profile in schematic cross-section, Fig. 5 shows Figs. 1-4. Fig. 6 shows a reduced section of Fig. 5 along the line VI-VI, Fig. 7 shows a reduced section of Fig. 5 along the line VII-VII.

The inner wall 10 of the ship or rig, not shown in more detail in Fig. 1, has flame-retardant wall plates 12 with a thickness e of 12 mm on both sides of the light metal profile 11 interior - a cross-sectional length α of 600 mm and a cross-sectional width b of 45 mm. fibrous silicate or similar material, weighing about 10.5 kg per square meter.

In Fig. 1, reference numeral 14 shows a joint between two wall plates 15, in which it is necessary to use a pair of screws 31. Reference numeral 35 denotes a weld between the first light metal profile 11 5 91511 gutter edge 36 and the longitudinal edge 37 of the pressed second light metal profile 11.

After the insertion of the dowel profiles 30, non-combustible mineral wool mats 40 are inserted into the cavities of the dividing wall.

The light metal profile 11 of Figure 4 has a profile plate 1 $ a.

partitions adjacent to slot 16 17. 18 in the cross-section a a are staggered with each other and form two shoulder 42 acting in response and one main wall 43 displaced relative thereto; there are also the central axes of the cross-section and the axes of symmetry of the cross-sections of the M2 chambers.

15 of the chambers adjacent to the chamber opening into the profile plate 15

£ L

the mold 26 is bounded on one side by a T-shaped extension 45 of the partition 18, as is the side bending 46 in the partition 18; this bend 46 forms on the other side of the axis of symmetry M2 a second wall 26, the rear wall 43e of which is 16 mm from the profile plate 15 at a distance t. The end portion 47 of the T-shaped extension 45 then forms a abutment surface with the bend 46 at a distance corresponding to the profile width b. to the profile-Vysta 15.

Otherwise, the distances s1 and s2 of the profile heads 36 and 37 from the nearest central axes and M2 are different, namely about 50 mm and 110 mm.

This light metal profile 11 is formed in cross-section from a profile plate 15 »having three longitudinal slits 16 (e.g. 30 mm) of width i and rectangularly bent partitions 17, 18 on both sides of that longitudinal slit 16, which have a cross-sectional width b 615 connected to a transverse wall 20 in the direction of the profile plate 15. The latter extends past the second partition wall 18 and is in line with the shoulder 22 of the third partition wall 19; the shoulder 22 and the free edge 21 of the transverse wall 20 in turn delimit the width i of the gap 23. The widths of the slots 16 and 23 are dimensioned here as being the same, but they can also be different.

The partition walls 17 and 19 define two adjacent chambers 25 and 26 with opposite inlet openings in the form of slots 16 and 23. The distance h between the central axes and Mg of the cross-section of the adjacent chambers 25 »26 is 56 mm, the distance f between the central axes and Mg of the cross-sections of the parallel chambers 25 and 26 is 200 mm. The inner width m of the chambers is about 52 mm, the depth of the chamber is about 37 mm.

In the inner cross-section of the chamber, ribs 28 are aligned from each of the delimiting partitions 17 and 18 or 18 and 19 at a distance (e.g. 6 mm) from the rear wall 20 or 15 of each chamber, delimiting the front wall 15 »or 20, 22 of the chamber 26 or 27 (distance qg = 27 mm) for the entry profile of the fibrous silicate dowel profile 30; the latter pass through the screws 31 »which engage it through the wall plate 12 as well as through the slots 16, 23. The ends 32 of the screws 31 extend into the end space delimited by said ribs 28.

In Fig. 5, the second chamber 25 ^ at the slit 16 of the profile plate 15 corresponds approximately in cross section to the chamber 25 in Fig. U. » wherein the rear walls U3 of the chamber are in the shape of a semi-circle. Here. in the embodiment, the distance between the central axes M 1 and Mg of the cross-section is so large - 100 mm - that the chambers 26 opening in the opposite direction cannot be formed by the walls delimiting the second chamber 25; rather, a chute profile 50 is used for delimiting the chamber, which is fitted to the inner surface of the profile plate 15 by casting a rib 51 on the central axis M2 of the cross-section. The shape of the chamber 26 corresponds to the shape of the chamber 25, the parts 47 '48 formed also being in line with each other and delimiting the gap 23. The width b of the profile is 70 mm, the thicknesses e and e of the wall plate 12 being different.

The chamber accommodates a parallelepiped-shaped plate-like clamping piece 53 »having a width c less than the width i of the slot 23 and which can therefore be introduced into and rotated in the chamber 26 until the end position shown in Fig. 7 is reached, where the screw 54 can be tightened to secure the steel connector 60 to the light metal profile 11 ^.

Claims (10)

A non-combustible planar element for shipbuilding, in particular a roof or wall element for ships or artificial islands used in offshore drilling technology, consisting of light metal profiles (11, 11a, lib) with chambers 25 (25) in the form of open grooves at the rear ), as well as at least one additional rear-cut chamber (26, 26a, 26b) opening to the opposite side in the vicinity of each chamber, the light metal profile being covered with a shatterproof wall plate (12), characterized in that the chambers (25, 26, 25a, 26a, , 25b, 26b) are filled with dowel profiles (30) which are fastened on the open sides of the chambers to the non-combustible wall plate (12) against the light metal profile (11, 11a, lib) by means of at least one pin (31) or screw. A planar element according to claim 1, characterized in that in each case two chambers (25, 26) opening in opposite directions are adjacent to each other and are delimited by three partitions (17, 18, 19) projecting from the profile plate (15), two of which (18, 19 ) have L-shaped bends (21, 22) in the same line at the far end of the plate, which form a gap (23), while the projections (15a) of the plate form an opening of the chamber (25) open in the direction of the plate. Level element according to Claim 2, characterized in that the partitions (17, 18, 19) are provided with ribs (28) which together form the rear walls (20, 20a) of the chambers (25, 26) and / or their projections (20). 15a) or similar bends (21, 22) with the included path. A planar element according to claim 1, characterized in that in each case two chambers (25a, 26a) opening in opposite directions are adjacent and are delimited by three partitions (17a, 18a, 19a), two of which (17a, 18a) project from the profile plate (15). ) and one (19a) protrudes from one of the two former partitions. 9 91511 Planar element according to Claim 4, characterized in that the two partitions (17a, 18a) projecting from the profile plate (15) are connected to the chambers (25a, 26a) by abutment shoulders (42) and provided with an extension (T-shaped) in cross section. 45), which in turn has a T-shaped end (46) of the third partition wall (19a), which also forms a stop shoulder (42). A planar element according to claim 1, characterized in that the chambers (26b) opening outwards from the profile plate (15) are formed by trough profiles (50) separate from the plate and connected to the plate by ribs (51). Planar element according to one of Claims 4 to 6, characterized in that a groove (43; 43a, 43b) is formed in the rear wall of the chamber (25a, 26a; 25b, 26b). Level element according to one of Claims 1 to 7, characterized in that the chamber (25, 26, 25a, 26a, 25b, 26b) or the ribs (28) and the rudder walls (20, 20a) or the outer projections (15a) or bends (21, 22) the cross-section of the entrance path between (q1 # q2) is filled with a dowel profile (30), in particular of fibrous silicate. 8 91511 Level element according to one of Claims 1 to 8, characterized in that the cavities between the fire-retaining wall plates (12) in the light-metal profile (11, 11a, lib) are filled with a fire-retardant mat (40). Level element according to one of Claims 1 to 9, characterized in that a plate-shaped clamping body (53) is inserted into one of the chambers (50) and a steel connector (60) is fastened to it by a screw (54). 10 91511