EP0590236B1 - Fire-resistant structural member - Google Patents

Abstract

The component has a aluminium core profile (3) with a fire protection glazing. On both core sides is fitted an aluminium shell (6) forming an enclosed chamber on both core sides. The core profile and lateral chambers form a support profile. The chambers are thermally separated in their transverse walls (8) by strap profiles (9) of mechanically strong material of low thermal conductivity. Pref. the chambers are filled by a refractory insulating and support profile (12), positively coupled to the core profile. The transverse walls container U-shaped clamping profiles (10) for the strap profiles.

Description

The present invention relates to a fire-retardant component for the production of fire protection elements such as doors, Windows, wall elements, with an aluminum core profile, which in particular has fire protection glazing, and with at least one arranged on both sides of the core profile Shell profile made of aluminum, each with the core profile forms a closed chamber.

Such a fire-retardant component is from the German Patent 30 09 729 known. This well known fire retardant Component has an aluminum core profile, which in particular wearing fire-resistant glazing, and at least one on both sides the core profile arranged shell profile made of aluminum, the one with the core profile is a closed one Chamber forms. The core profile and both sides of it arranged shell profiles form a load-bearing profile, that in its two transverse walls from web profiles mechanically strong material with low thermal conductivity is thermally separated.

The functionality is based on this this component that the aluminum Fire protection shell melts when fire is applied and thereby has a heat-consuming effect, which influences the heat of the kernel first is significantly reduced. In addition, the aluminum frame used very low thermal conductivity and heat capacity on, so that little thermal energy on the Fire facing away from the aluminum frame becomes. The core profile can be thermal in its transverse walls Separation by non-combustible building materials of the building material classes A1 and A2 according to DIN 4102, Part 1, which with known fasteners between individual core parts are switched. The DIN 4102 refers to Building materials of all kinds with different types mechanical and thermal properties, such as Concrete or wood. The standard also includes powdery ones Building materials and even clothing. The well-known fire retardant Component is especially for the fire resistance class F30 suitable according to DIN 4102.

The present invention is based on the object of the well-known fire-retardant component, this to improve such that it is at least for the fire resistance class F60, but especially F90 according to DIN 4102 is, i.e. that the stability and the temperature reduction be improved in such a way that a two- up to three times the service life of the known one fire-retardant component is reached.

This is according to the invention by the features of the claim 1 reached.

It is also advantageous that the chambers with a heat-resistant Insulating and support profile are filled with the core profile positively or positively and non-positively connected is. Alternatively or additionally, too the core profile with a corresponding insulating and support profile be filled, with a shape also advantageously or force fit with the frame profile (core and / or Shell profile).

Thanks to the thermal web profiles in the transverse walls of the aluminum shells and possibly the core becomes the heat transfer from the fire side over the core to the opposite Chamber significantly reduced, so that the total service life of the supporting profile is increased. Here it is essential that also the away from the fire side Aluminum shell supports in addition to the core profile; because this ensures stability, even if the core is affected by the heat has been pulled. By inside the chambers and / or the core arranged support and insulating profile body is also the influence of heat radiation in the event of fire significantly reduced to or via the core profile. This inner profile also preferably takes over Support functions through the existing positive connection with the core and / or shell profile, which increases the stability is additionally increased.

Further advantageous embodiments of the invention are in the Subclaims included. Overall, according to the invention created a fire-retardant component with which Fire protection elements such as doors, windows or fixed Wall elements can be built, either one Glazing or other refractory filling fire resistance classes F60 to F90.

Fig. 1

einen Schnitt durch ein erfindungsgemäßes feuerhemmendes Bauteil, das als Rahmen mit einer Festverglasung ausgebildet ist,

Fig. 2

einen Schnitt durch ein erfindungsgemäßes Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloßseite,

Fig. 3

einen Schnitt durch das erfindungsgemäße Bauteil gemäß Fig. 2 an der Tür-Bandseite,

Fig. 4

einen Schnitt durch das Bauteil gemäß Fig. 2 im Bereich des Tür-Fußpunktes,

Fig. 5

einen Schnitt durch ein erfindungsgemäßes Bauteil als zweiflügelige Tür im Bereich des Tür-Mittelstulps,

Fig. 6

einen Querschnitt durch eine alternative Ausführung eines Bauteils, das hier - etwa analog zu Fig. 1 - als Rahmenprofil mit einer Festverglasung ausgebildet ist,

Fig. 7

einen Querschnitt durch eine Anordnung von Bauteilen in einer zu Fig. 3 etwa analogen Ausbildung als Türrahmen- und Türflügel-Profile,

Fig. 7a

eine Teilansicht der Fig. 7 in einer vorteilhaften Weiterbildung,

Fig. 8

einen Querschnitt durch eine Anordnung von Bauteilen im Übergangsbereich von einem eine Festverglasung haltenden Rahmenprofil über ein damit verbundenes Türrahmen-Profil zu einem Türflügel-Profil,

Fig. 9

einen Querschnitt durch eine Anordnung von Bauteilen im Bereich eines Mittelstulpes einer zweiflügeligen Tür etwa entsprechend der Darstellung in Fig. 5,

Fig. 10

eine zur Anordnung gemäß Fig. 8 alternativen Ausführung.

The invention is explained in more detail with reference to the exemplary embodiments illustrated in the accompanying drawings. Show it:

Fig. 1

3 shows a section through a fire-retardant component according to the invention, which is designed as a frame with fixed glazing,

Fig. 2

3 shows a section through a component according to the invention for forming a single-leaf door in the region of the door lock side,

Fig. 3

3 shows a section through the component according to the invention according to FIG. 2 on the door hinge side,

Fig. 4

3 shows a section through the component according to FIG. 2 in the region of the door base,

Fig. 5

FIG. 2 shows a section through a component according to the invention as a double-leaf door in the area of the central door cuff,

Fig. 6

2 shows a cross section through an alternative embodiment of a component, which here is designed - approximately analogously to FIG. 1 - as a frame profile with fixed glazing,

Fig. 7

3 shows a cross section through an arrangement of components in a configuration approximately analogous to FIG. 3 as door frame and door leaf profiles,

Fig. 7a

7 shows a partial view of FIG. 7 in an advantageous development,

Fig. 8

1 shows a cross section through an arrangement of components in the transition area from a frame profile holding a fixed glazing via a door frame profile connected thereto to a door leaf profile,

Fig. 9

5 shows a cross section through an arrangement of components in the area of a central cuff of a double-leaf door, approximately as shown in FIG. 5,

Fig. 10

an alternative to the arrangement shown in FIG. 8.

In the alternative embodiments according to FIGS. 6 to 10 is the load-bearing profile in the cross walls of the shell profile not thermally separated according to the invention.

The same in the different figures of the drawing or functionally corresponding parts always with the provided with the same reference numerals.

In Fig. 1 is an example of a cross section through a fixed glazing with a fire-retardant component according to the invention shown. This fixed glazing consists of one Frame profile 1 and a heat-resistant pane 2. The Frame profile 1 consists of a core profile 3 made of aluminum, preferably as a closed hollow profile with at least is approximately rectangular cross-section. On the longitudinal walls running parallel to the X-X window plane 4 of the core profile 3 are shell profiles 6 Made of aluminum, which is a closed chamber 7 with the core profile 3 include, attached.

1 to 5 are according to the invention the shell profiles 6 in their transverse walls 8 thermally separated, while in the rest of the connection area to Core profile 3 are integrally formed with this. This thermal separation is achieved by web profiles 9 that in the transverse walls 8 of the shell profiles 6 force and / or are positively inserted. For this purpose, the Transverse walls 8 each opposite, U-shaped Clamp profiles 10 formed between the U-legs 11th the web profiles 9 are held. The web profiles 9 are made of a mechanically strong material that is bad is thermally conductive and melts when exposed to heat. As Manufacturing material is in particular polyamide or Cast resin suitable. Through the web profiles 9, the heat flow interrupted from the outside in to the core profile 3. It is also provided that the chambers 7 are supported by a and insulating profile 12 are filled. This support and insulation profile 12 is form-fitting with the core profile 3 or positively and non-positively connected. The supporting and insulating profile 12 is made of heat-resistant material, which accordingly the unit temperature time curve (ETK) at a Temperature of 1000 K over a period of 90 Minutes heat-resistant. This support and insulation profile 12 takes on a supporting function in the event of a fire, if that from the fire each shell profile 6 melts. The supporting and insulating profile 12 is through behind the U-shaped clamping profiles 10 formed rear formations 13 held positively. To the clamping profiles 10 resulting in the breaking lines in the Control and insulating profiles 12 are on the inside U legs 11 lugs 14 formed so that the Risk of breakage is reduced. On the window pane 2 facing transverse side of the frame profile 1 are on both sides the window pane 2 glass retaining strips 21 and cover profiles 22 in a known manner, as can be seen from DE-PS 30 09 729, attached. According to the invention, the glass holding strips are used here 21 by means of steel screws (not shown) in Area in front of the web profiles 9, in each case from the outer longitudinal sides seen the frame profile 1, attached, and a bridge bar 23 made of steel is by means of a steel screw on the window pane 2 facing Side of the core profile 3 attached. The bridge bar 23 connects the glass retaining strips 21 so that their fastening screws also run through the bridge bar 23. Furthermore, it is a fire retardant and heat resistant Sealing in a known manner between the window pane 2 and the frame profile 1 provided.

These basic design features described above of a fire-retardant component according to the invention are all of the invention shown in Figs. 1 to 5 fire retardant components together, being the same Parts have the same reference numbers. Here however, have the individual components according to the invention 1 to 5 due to their further function as fixed glazing frame profile, Door frame profile, door leaf profile or due to special requirements in the gap area between the door frame profile and the door leaf profile or special designs between two door leaf profiles.

Thus, in the embodiment according to FIG. 2 there is between one Door frame profile 5 and a door leaf profile 15 an oblique gap 16 extending to the window plane X-X is formed by that the mutually facing transverse sides of the profiles 5, 15 run essentially at an angle to the window plane X-X, by in each case the associated opposite one another Cross walls 8 of the shell profiles parallel to each other at the same angle to the window plane X-X and the Transverse wall of the core profile 3 perpendicular to the window plane X-X run. Here are the angles to the window plane X-X and dimension the gap width such that an arcuate opening movement of the door leaf 15 on the fixed door frame profile 5 over is possible without hindrance. This configuration has the advantage that the two profiles 5, 15 can be designed with the same profile, being in their Installation position rotationally symmetrical to one in the window plane X-X through the center of the gap 16 axis of symmetry are arranged. It is also provided that in the gap area parallel to the transverse walls of the core profile 3 and the Shell profiles 6 sealing inserts 17 are attached Sealing liners 17 consist of an under the influence of heat swelling material so that in the event of fire the gap 16 is sealed. Furthermore, are in the core profile 3 Anchors for a door latch 18 and an associated latch lock 19 provided.

Furthermore, it can be seen in Fig. 2 that in each case in extension the wider front of the door frame profile 5 or the door leaf profile 15 integrally formed a stop bar 24 which also serves to cover the gap. The Sealing the gap between the door frame profile 5 and a wall W takes place in a known manner with suitable ones heat-resistant materials.

In Fig. 3, the door hinge side of the door frame profile 5 and of the door leaf profile 15 shown in FIG. 2, wherein same parts marked with the same reference numerals as in Fig.2 are. Here are in the cavity of the core profile 3 inner U-shaped steel fittings 26 used which the outer door fitting, the hinge 25, via screw connections 27 is attached. Furthermore, the interior Steel fitting part 26 of the door leaf profile 15 a steel pin 28 on that facing the door frame profile 5 Transverse side of the core profile 3 into a recess 29 the opposite transverse side of the door frame profile 5 protrudes. The steel pin 28 is used in Fire trap when the outer hinge 25 has melted, the door leaf profile 15 in the door frame profile 5 carry.

4, the door leaf profile 15 according to FIG. 2 is in the area of the door foot, the same parts as in Fig. 2 are identified by the same reference numerals. It is provided that the groundbreaking from the interior Shell profile 6 in the angular range between its Front and a transverse side facing a floor 34 L-shaped flue gas protection profile 31 is attached, the Leg 32 running parallel to the transverse wall 8 over a Web profile 33, which corresponds in terms of material to web profile 9, with the core profile 3 for thermal decoupling connected is. Here is a fastening of the web profile 33 provided that the web profile 9 is adapted to the design is. On the side of the leg facing the floor 34 32, a sealing lip 30 is attached. The flue gas protection profile 31 rests on one parallel to it trained leg to the window plane X-X Nose 42 in a profile opening 43 of the door leaf profile 15 from.

5 is a cross section through the door leaf profile 15 2 when using the same with a double wing Door shown, the same parts as in Fig. 2 are identified by the same reference numbers. Here is a non-load-bearing metal center profile in a door middle faceplate 35 36 used and on one of the door leaf profiles 15 attached to the core profile 3. Das Middle profile 36 is also an aluminum three-chamber profile, according to the frame profile 1, in adaptation to the course of the door center cuff 35 is formed. Here have the outer shell profiles 37, one on both sides hollow core profile 38 are arranged inside each a supporting and insulating profile 12 with which they are form-fitting are connected. They have in their transverse walls Shell profiles 37 each have a separating slot 39 for thermal Separation.

To the inside of the double-leaf door in the area of Door center cuffs 35 a temperature reduction from the door center cuff 35 to get away are on the inside Shell profiles insulating shells 40 placed. These insulating shells 40 broaden the frame profile in both Pages and have a right-angled extension 41, with which they rest against the window pane 2. These insulating shells 40 are heat-resistant inside Material filled. On the exposed transverse sides of the door center profile 36 are sealing inserts 17 for gap sealing installed in the event of fire.

The fire-retardant component according to the invention in the previously Described embodiments according to FIGS. 1 to 5 is suitable due to its design for the fire resistance class F90, i.e. it has a stability of at least 90 minutes in the event of fire, Fire away side a maximum of an average temperature of 140 ° is present during this period.

In the embodiments illustrated in FIGS. 6 to 10 a fire retardant component is now provided that the core profile 3 in its at least approximately perpendicular transverse walls 45 extending to the X-X pane plane is thermally separated by web profiles 9, analogously to the transverse walls 8 of the shell profiles forming the chambers 7 6 according to FIGS. 1 to 5. Thus, with regard to the Design, the material and the support of the web profiles 9 in full on the relevant explanations 1 to 5, especially since 6 to 10 the same parts with the same reference numerals are provided.

6 to 10 in each case the cavity formed by the core profile 3 with an insulating profile 12 filled, also on the related Description parts to FIGS. 1 to 5 is referred. However, it should be mentioned that the profile 12 above all has a thermal insulation function, it being additional mechanically load-bearing, but also non-load-bearing, trained can be.

The embodiments illustrated in FIGS. 6 to 10 of a fire retardant component are at least suitable for a fire resistance class F60 according to DIN 4102 (service life at least 60 minutes in the event of fire). But it should be emphasized that an increase in fire resistance class at least can be reached on F90 if the in FIG to 10 shown thermal separation of the core profile 3rd and optionally the filling of the core profile 3 with the Insulating profile 12 in combination with that in FIGS. 1 to 5 illustrates thermal separation of the shell profiles 6 or chambers 7 and, if appropriate, their filling with the insulating and support profiles 12 is provided.

The following are special features of each Embodiments of FIGS. 6 to 10 explained in more detail will.

In these embodiments, there are usually no separate ones Glass holding strips are provided, but these will be on the one hand, directly from the respective frame profile 1 (or 5 or 15) formed by the core profile 3 a corresponding Extension 46 parallel to the X-X disc plane has, which is also filled with the insulating profile 12 is. The shell profile 6 and that of this chamber 7 also formed over the area of the extension 46 of the core 3. On the opposite side A holding profile 47 takes over the glass holding function, whereby this holding profile 47 preferably latching with the frame profile 1, 5 or 15 connected (clipped) and analog to the shell profiles 6 also a chamber (cavity) forms. Between the extension 46 or the holding profile 47 and the disc 2 are each elastic profile sealing strips 48 arranged. The one with the insulating profile 12 have filled profile extensions 46 of the core profiles 3 the very positive effect for a fire-retardant component, that on the one hand - with a fire on the opposite Side - a heat transfer in the fire prevent remote space and on the other hand - with one Fire on the same side - thermal insulation towards effect on the opposite side.

In Fig. 8 it is indicated that in addition glass holding strips 21 with corresponding bridge strips 23 made of steel can be provided, preferably the glass holding and bridge strips 21, 23 in one piece e.g. of a bent steel sheet formed and in particular only one-sided on the frame profile, preferably in Area of the extension 46 of the core profile 3, attached are. In this case, the holding profiles 47 have at the same time also the function of the cover profiles 22 described above.

In Fig. 7 - approximately according to Fig. 3 - a door frame profile 5 and one with this over the hinge 25 shown pivotally connected door leaf profile 15, but here the gap formed between them 16 substantially straight and perpendicular to the disc plane X-X runs. Here, too, they are already in the gap area described sealing inserts 17 from exposure to heat foaming material arranged. Because of the filling the core profiles 3 is the hinge in this version 25 - instead of the U-shaped fittings 26 in Core - attached via steel fittings 26a, which in the hollow chambers 7 of the shell profiles 6 are arranged. According to 7a can also be used here - likewise analogously to FIG. 3 - The already described steel pin 28 in the gap area be arranged; but this is on a parallel to the transverse wall 45 of the core profile 3 held on the door leaf profile 15 Bridge bar 49 fastens and engages - when closed Door - in a recess 29 one at the opposite core profile transverse wall 45 of the door frame profile 5 held bridge bar 50 a. The gap 16 is on both sides of the stop bars already described 24 covered, each with an elastic Profile seal 51 are provided with a sealing lip for contact with the adjacent frame or sash profile 5 or 15 arrives.

In Fig. 8 are a door frame profile 5 and a door leaf profile 15 shown in the area of the lock side, the Door frame profile 5 with connection profiles 52 with a a fixed glazing supporting frame profile 1 is connected. In the gap between frame profile 1 and the door frame profile 5 is preferably a sealing insert 17 - like already described above - arranged. In this version it is now essential that an actuator 53 (lock) arranged on the door leaf profile 15 Door latch 18 in a recess within the Core profile 3 arranged insulating profile 15 arranged is. At core profile 3 of the opposite door frame profile 5 is then the associated latch lock 19 (strike plate opening) attached for the door latch 18.

In Fig. 9, the area of a middle cuff is a two-winged one Door with two adjacent door leaf profiles shown. One door leaf profile 15 with the door latch 18 and its actuating device 53 corresponds to the embodiment 8. The other door leaf profile 15 contains in the area of the core profile 3 in the direction of the profile extending bolt 54, which is used to lock one wing serves the double-leaf door. This runs through the insulating profile arranged within the core profile 3 12 through a guide tube (mounting tube) 55 for receiving of the latch 54. The guide tube 55 is preferably additionally on the inside of a longitudinal wall of the core profile 3 attached, and advantageously with a guide bar, which is held in guide grooves of the ker profile 3. Of the Bolt 54 has at least one cross pin (not shown), which is used to move the Riegel 54 can be reached.

The actuating device 53 are thus advantageously the door latch 18 and / or the latch 54 each in the thermal insulation zone, i.e. arranged within the insulating profiles 12, whereby to avoid heat transfer between the thermally separated via the web profiles 9 Core halves only on one side, i.e. on only one core half, are attached.

In Fig. 10 it is also illustrated that on a door frame profile 5 fixed glazing can also be arranged can. For this purpose, there are advantageously mounting profiles 56 provided, each on the one hand with a profile plug section 57 inserted into a receptacle of the frame profile 5 and each have a glass holding section 58 have. These bracket profiles 56 are in front all as a transition to fixed side panels and so-called Suitable for skylight parts.

In all illustrated embodiments of Figures 1 to 10 it may be advantageous if the fire protection glazing consists of an at least two-layer disc 2, the at least one swelling at the edge of the pane under the influence of heat and thereby the gap to the respective frame profile 1, 5 and 15 sealing intermediate layer (in the drawings not recognizable) in particular from water glass. Alternatively or in addition to this, it can also be advantageous be if - as exemplified in FIG. 10 is - in the gap area between the frame profile and the fire protection glazing from a sealing strip 59 a swelling or foaming under the influence of heat Material is arranged. These sealing strips 59 correspond functionally essentially the sealing inserts 17. These measures also help in the event of a fire additional mechanical holding forces to hold the Fire protection glazing produced.

The invention is not based on the illustrated and described Embodiments limited, but includes all designs within the meaning of the invention according to claim 1, in particular designs according to the dependent claims, in which a combination of thermal separation of the load-bearing profile in transverse walls 8 of the shell profile 6 with the features of that in FIG. 6 to 10 versions shown.

Claims (20)

1. Fire-resistant structural member for the production of fireproof elements such as doors, windows and the like, with an aluminium core profile (3), which carries, in particular, fireproof glazing, and with at least one aluminium shell profile (6) which is arranged on both sides of the core profile (3) and which in each case forms with the core profile (3) a closed chamber (7), the core profile (3) and the shell profiles (6) arranged on both sides of the core profile (3) forming a load-bearing profile (1), and the load-bearing profile (1) being thermally separated, in its two transverse walls (8, 45), by web profiles (9) integrated into the transverse walls (8) of the respective shell profile (6) and consisting of mechanically strong material of low thermal conductivity.
2. Fire-resistant structural member according to Claim 1, characterized in that the core profile (3) is thermally separated in its transverse walls (45).
3. Fire-resistant structural member according to Claim 1 or 2, characterized in that the chambers (7) are filled with a heat-resistant insulating and supporting profile (12) which is connected positively or positively and non-positively to the core profile (3).
4. Fire-resistant structural member according to one of Claims 1 to 3, characterized in that the core profile (3) is filled with a heat-resistant insulating profile (12).
5. Fire-resistant structural member according to one of Claims 1 to 4, characterized in that U-shaped clamping profiles (10) for receiving the web profiles (9) are designed, for thermal separation, in each case opposite one another, in the transverse walls (8) of the shell profiles (6) and/or in the transverse walls (45) of the core profile (3), the web profiles (9) being held with a clamping effect between the U-legs (11) of the said clamping profiles.
6. Fire-resistant structural member according to Claim 5, characterized in that undercuts (13) are designed, in each case behind the U-shaped clamping profiles (10), in the chambers (7) formed by the shell profiles (6) and/or within the core profile (3), in such a way that the supporting and insulating profiles (12) are connected positively to the load-bearing profile (1) consisting of the core profile (3) and shell profiles (6).
7. Fire-resistant structural member according to one of Claims 1 to 6, characterized in that glass-holding battens (21) are fastened in the region in front of the web profiles (9) by means of steel screws, on both sides of the window plane on that transverse side of the load-bearing profile (1) which faces the window pane (2), and a bridge batten (23) consisting of steel is fastened by means of a steel screw to that transverse side of the core profile (3) which faces the window pane (2).
8. Fire-resistant structural member according to one of Claims 1 to 7, characterized in that a stop batten (24) is integrally formed in the extension of the wider front side of the load-bearing profile which is designed as a door-frame profile (5) or as a door-wing profile (15), the said stop batten serving at the same time for covering the gap between the door-frame profile (5) and the door-wing profile (15).
9. Fire-resistant structural member according to one of Claims 1 to 8, characterized in that one load-bearing profile is designed as a door-frame profile (5) and a further load-bearing profile is designed as a door-wing profile (15) of a door, and between the door-frame profile (5) and the door-wing profile (15) is formed a gap (16) which runs perpendicularly or obliquely to the window plane (X-X) and in which the mutually facing transverse walls (8) of the shell profiles (6) run parallel to one another and at right angles to or obliquely to the window plane (X-X) and the transverse walls of the core profile (3) run perpendicularly to the window plane (X-X).
10. Fire-resistant structural member according to Claim 9, characterized in that sealing inserts (17), which consist of a material which swells up under the influence of heat, are fastened, parallel to the transverse walls, in the region of the gap (16) between the door-frame profile (5) and the door-wing profile (15).
11. Fire-resistant structural member according to one of Claims 8 to 10, characterized in that a U-shaped steel furniture part (26) for fastening an outside door-hinge plate (25) is provided in each case in a cavity formed by the core profile (3) of the door-frame profile (5) and of the door-wing profile (15).
12. Fire-resistant structural member according to Claim 11, characterized in that at least one steel pin (28) is designed on the steel furniture part (26) of the door-wing profile (15), in such a way that the said steel pin projects through that transverse side of the core profile (3) which faces the door-frame profile (5), into a recess (29) of the opposite transverse side of the door-frame profile (5).
13. Fire-resistant structural member according to one of Claims 8 to 10, characterized in that a steel furniture part (26a) for fastening an outside door-hinge plate (25) is arranged in each case in one of the hollow shell profiles (6) of the door-frame profile (5) and of the door-wing profile (15), the said shell profiles forming the chambers (7).
14. Fire-resistant structural member according to one of Claims 8 to 13, characterized in that at least one steel pin (28) is fastened to the door-wing profile (15), in particular to a bridge batten (49) held, parallel to the transverse wall (45) of the core profile (3), on the door-wing profile (15), in such a way that the said steel pin projects into a recess (29) of the door-frame profile (5), in particular of a bridge batten (50) held on the opposite core-profile transverse wall (45) of the door-frame profile (5).
15. Fire-resistant structural member according to one of Claims 8 to 14, characterized in that an L-shaped smoke-gas protection profile (31) is fastened in the angular region between the longitudinal and the transverse side of the door-wing profile (15) in the region of the door foot of the latter, of which smoke-gas protection profile the leg (32) running parallel to the transverse wall (8) is connected to the core profile (3) via a web profile (33) for thermal uncoupling.
16. Fire-resistant structural member according to one of Claims 8 to 15, characterized in that a non-load-bearing middle profile (36) is inserted in the region of the door middle fore-end (35) of a two-wing door and is fastened to one of the door-wing profiles (15), the middle profile (36) being shaped out as a three-chamber profile, and there being, on both sides of a hollow core profile, outer shell profiles (37), in which a supporting and insulating profile (12) is arranged positively in each case and in the transverse walls of which there are separating slits (39) for thermal separation.
17. Fire-resistant structural member according to one of Claims 8 to 16, characterized in that a door latch (18) with an associated actuating device (53) is arranged in the region of the core profile (3) of one door-wing profile (15) of a single-wing or two-wing door and an associated latch lock (19) is arranged on the core profile (3) of an opposite frame profile (1) or a door-frame profile (5), and if an insulating profile (12) is arranged within the core profile (3), the said insulating profile has a recess for the door latch (18) or the actuating device (53) of the latter.
18. Fire-resistant structural member according to one of Claims 8 to 17, characterized in that a bolt (54) running in the profile direction is arranged in the region of the core profile (3) of one of the door-wing profiles (15) of a two-wing door, and, if an insulating profile (12) is arranged within the core profile (3), a guide tube (55) receiving the bolt (54) runs through the said insulating profile and is held in the core profile (3) preferably on the inside.
19. Fire-resistant structural member according to one of Claims 1 to 18, characterized in that the fireproof glazing consists of an at least double-layer pane (2) which has at least one intermediate layer, consisting particularly of water glass, which swells out under the effect of heat at the pane edge and which thereby seals off the gap relative to the load-bearing profile (1, 5, 15).
20. Fire-resistant structural member according to one of Claims 1 to 19, characterized in that a sealing strip (59) consisting of a material which swells up or foams under the effect of heat is arranged in the gap region between the frame profile (1, 5, 15) and the fireproof glazing.

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