Fire-resistant insert for the assembly shock in the separation area of two adjacent posts of a post-crossbar construction

Abstract

The invention relates to a fire protection insert (2) for the assembly joint in the separation area of ​​two adjacent posts of a post-and-beam construction, wherein the fire protection insert (2) has a central section and two opposing leg sections and is designed to foam up at least partially or in certain areas by the application of heat, wherein the central section of the fire protection insert (2) has a size and shape adapted to the size and shape of a screw groove area of ​​the post.

Description

[0001] The present invention relates generally to a structural arrangement for buildings or pitched roofs, comprising at least one post, at least one beam, and surface support elements framed by these, which are clamped between the inner post profiles and beam profiles and the weather-side post pressure profiles and beam pressure profiles connected to them, wherein the post pressure profiles and beam pressure profiles bear against the surface support elements with their longitudinal side edges and inwardly projecting sealing strips arranged thereon, and in the area of ​​a joint between a beam and a side of the post, a sealing arrangement bearing against the beam pressure profiles or the post pressure profile is arranged, covering the joint between the beam profile and the post profile on the one hand and the gap between the beam-side side edges of the surface elements on their pressure-profile-side outer surface on the other hand.

[0002] Such a construction arrangement is known, for example, from DE 34 195 38 A1. This prior art describes a facade or roof in a metal-glass design, consisting of a metal frame whose frame sections are fitted with glass panes, wherein the metal frame on the building side is composed of main profiles and transverse mullion profiles, and on the outside of cover profiles covering the pane edges and screwed to the main profiles or the mullion profiles, wherein the main profiles, the mullion profiles and the cover profiles have anchoring grooves for sealing strips that are supported on the pane edges.

[0003] In particular, the invention relates to a construction arrangement of the aforementioned type, especially a facade or a skylight, in a fire-resistant design.

[0004] According to one aspect of the invention, this relates to a fire protection insert or insulator for a post-and-beam facade construction consisting of profiles with embedded surface elements, in particular glass panes, preferably fire-resistant glass panes, which can be sealed against the profiles of the beams or posts of the post-and-beam facade construction. The insulating strip or insulator is provided in a gap formed between a first profile serving as a fixed bearing and a second profile serving as a floating bearing.

[0005] In facade construction, it is common to use post-and-beam structures. These typically consist of a metal frame whose panels are fitted with glass panes or other infill or surface elements, such as infill panels. On the building side, the metal frame comprises main profiles (posts) and transverse or diagonal post profiles (beams), as well as cover profiles screwed to the main profiles or post profiles to cover the edges of the glass panes.

[0006] Furthermore, insulators or insulating strips made of a non-metallic material are provided, particularly in the gaps formed between the glass panes, in order to connect thermal bridges from the outside to the inside.

[0007] For example, the publication EP 0 702 114 A relates to such a construction in which an insulator or insulating body is attached to the post between the glass panes which are adjacent to a post and form a gap.

[0008] From the outside, a pressure strip covering the gap is attached to the insulator, which rests on the surface elements and rests on the surface elements with an interposed plastic seal.

[0009] A similar facade construction is also known from publication EP 1 452 657 A, in which an insulating block forming the seal is provided with plastic lips that reduce the lateral free space.

[0010] The present invention is based on the objective of providing a facade or skylight in which, even in the event of a fire, the heat generated by the fire cannot penetrate to the side facing away from the fire, taking into account certain criteria, and in which the post / beam facade construction withstands the heat for at least a longer period of time.

[0011] In particular, a solution should be provided which can optimize the fire resistance of a metal profile frame in an easy-to-implement yet effective manner.

[0012] Since the available interior space of the hollow profiles used in post-and-beam constructions is generally limited, the fire resistance of these profiles cannot be arbitrarily increased. However, for certain requirements, the achievable fire resistance of post-and-beam facade constructions is insufficient.

[0013] The invention is therefore based in particular on the objective of providing a profile frame construction, especially a post / beam construction, in a fire-resistant design which, with the same installation space, has a higher resistance to fire exposure than measures known from the prior art.

[0014] This problem is solved in particular by the subject matter of independent claim 1.

[0015] Accordingly, the invention relates in particular to a fire protection insert for the assembly joint in the separation area of ​​two adjacent posts of a post / beam construction, wherein the fire protection insert has a central section and two opposing leg sections and is designed to expand, at least partially or in certain areas, through the application of heat. The central section of the fire protection insert has a size and shape adapted to the size and shape of a screw groove area of ​​the post.

[0016] In particular, the size and shape of the central section of the fire protection insert are chosen so that, in a mounted state of the fire protection insert, the screw groove area of ​​the post is at least partially and preferably completely covered.

[0017] The two opposing leg sections of the fire protection insert preferably each have a size and shape adapted to the size and shape of a groove area for receiving a sealing strip of the post.

[0018] In particular, according to implementations of the fire protection insert according to the invention, it is provided that, viewed from above, the fire protection insert has a base body that is at least substantially T-shaped, wherein the T-shaped base body has a first arm area extending in a first direction and a second arm area extending perpendicular to the first arm area, which is in particular integrally connected to the first arm area in a central area of ​​the first arm area.

[0019] The fire protection insert or base body, in particular the at least substantially T-shaped base body of the fire protection insert, has a relatively small thickness. Specifically, the base body has a thickness between 1.0 mm and 3.0 mm, and preferably about 2.0 mm.

[0020] The first arm section of the fire protection insert can have at least one area projecting forward in the first direction. Alternatively or additionally, the first arm section of the fire protection insert can have at least one area recessed in the first direction.

[0021] In this way, the fire protection insert can be optimally adapted to the shape of a joint between two adjacent post sections of the post / rail construction. A first post section forms a fixed bearing, while the second post section adjacent to the first post section has a floating bearing. The fire protection insert according to the invention is preferably also retrofitted in the joint between the first and second post sections. Due to the low thickness of the fire protection insert, in particular approximately 2.0 mm, an existing post / rail construction can also be retrofitted with the fire protection insert in order to improve fire resistance and, in particular, to effectively extend the service life of the post sections designed as hollow profiles.

[0022] According to implementations of the fire protection insert according to the invention, the fire protection insert comprises a fire protection material that foams up when exposed to heat.

[0023] Alternatively, the fire protection insert can also consist of a fire-resistant material that foams up when exposed to heat.

[0024] The fire protection insert, which consists of a fire-resistant material that foams up when exposed to heat, is in particular an intumescent material which, at a temperature development of at least 120°C and preferably at a temperature development of at least 140°C, responds and expands in such a way that the gap between two adjacent post sections of the post / beam construction is automatically sealed and preferably completely filled.

[0025] Preferably, the intumescent material of the fire protection insert should have a stability up to a temperature of approximately 1000°C.

[0026] In principle, it is also conceivable that the fire protection insert has a base body which is at least partially or in certain areas coated with an intumescent fire protection coating.

[0027] In particular, the base body of the fire protection insert can therefore be provided with a suitable intumescent fire protection coating, at least partially or in certain areas, and especially coated.

[0028] Intumescent fire protection coatings are primarily fire-resistant coatings based on substances that foam and carbonize in the event of a fire, film-forming binders, blowing agents, and common auxiliary and additive materials. These intumescent fire protection coatings, also known as intumescent coatings, are characterized by their ability to foam up under appropriate temperature conditions in the event of a fire. This foaming action prevents or at least hinders the transfer of heat to the components of the post-and-beam construction.

[0029] In particular, the intumescent fire protection coating of the last-mentioned design variants of the fire protection insert is a fire protection coating with which the longest possible fire resistance times can be achieved with the smallest possible application quantities.

[0030] To achieve this, it is conceivable to reduce the specific density of the dried film of the fire-retardant coating. Since this may be accompanied by a reduction in fire protection performance, it is therefore preferable to use a fire-retardant coating whose reaction begins below 180°C.

[0031] In this context, it is conceivable, for example, that the intumescent fire protection coating contains a flame retardant mixture which contains a phosphorus-nitrogen flame retardant and a phosphinic acid salt and / or a difosphinic acid salt and / or their polymers.

[0032] The phosphorus / nitrogen flame retardants may include, in particular, ammonium hydrogen phosphate, ammonium dihydrogen phosphate and / or ammonium polyphosphate.

[0033] Of course, other compositions are also suitable for the intumescent fire protection coating, such as a multi-component epoxy resin coating compound with a first component containing at least one epoxy resin, a hardening component containing at least one hardener for the epoxy resin, and an intumescent component containing at least one acid component, at least one carbon source, and at least one gas former.

[0034] In the case of such an intumescent multi-component epoxy resin coating compound, it is advantageous for the component containing the epoxy resin and the hardener component to be present separately in a reaction-inhibiting manner and to only react upon mixing under polymerization.

[0035] According to a further embodiment of the fire protection insert according to the invention, the base body of the fire protection insert comprises at least one insert made of a fire-resistant material that foams up when exposed to heat. Instead of an insert made of a fire-resistant material that foams up when exposed to heat, a fire protection insert made of a heat-absorbing, hydrophilic adsorber with a high water content can also be used.

[0036] The advantages achievable with the solution according to the invention are obvious: by providing a corresponding fire protection insert in the joint area between two adjacent post sections of a post / beam construction, the disintegration of the construction can be delayed for a relatively long time in the event of a fire, since the fire protection insert foams up under the influence of heat and, as a heat shield, delays the disintegration process of the construction in the event of a fire.

[0037] Of course, it is also conceivable that the base body of the fire protection insert is provided with an intumescent fire protection coating, for example by spray coating, dipping coating or by painting.

[0038] This design variant has the advantage that the basic body of the fire protection insert can be provided with an extremely small footprint.

[0039] The invention further relates to a post of a post / beam construction, wherein the post has a screw groove area from which an insulating strip can be received, and wherein the post has a fire protection insert of the aforementioned type according to the invention.

[0040] The invention is described in more detail below with reference to the accompanying drawings.

[0041] They show: FIG. 1 schematically and in an isometric exploded view the joint area of ​​a post profile of a profile frame construction with an exemplary embodiment of the fire protection insert according to the invention; FIG. 2 schematically and in an isometric exploded view the joint area of ​​a further post profile of a profile frame construction with a further exemplary embodiment of the fire protection insert according to the invention; and FIG. 3 schematically and each in a top view exemplary embodiments of the fire protection insert according to the invention.

[0042] In FIG. 1 and FIG. 2 Each isometric exploded view shows the joint area of ​​a mullion profile in a profile frame construction. The mullion profiles shown are, for example, components of facade constructions composed of mullion and transom profiles.

[0043] In the joint area of ​​the post profile lies a post profile section designed as a loose bearing (in FIG. 1 and FIG. 2 (not shown) rests on the end face of a post profile section 1 designed as a fixed bearing and is connected there to the post profile section 1 serving as a fixed bearing. The post profile serving as a floating bearing is also commonly referred to as a top profile. The post profile has grooves for receiving seals or sealing strips 3 as well as a post pressure profile.

[0044] The post profile consists of two post profile pieces placed vertically next to each other, wherein in FIG. 1 and FIG. 2 Only one post profile piece is shown in each case, namely post profile piece 1 designed as a fixed bearing.

[0045] In the profile joint between the two adjacent post profile pieces, a continuous, mat-shaped fire protection insert 2 is sandwiched in place.

[0046] The fire protection insert 2 has a thickness of preferably 1.0 mm to 10.0 mm and in particular of about 2.0 mm to 4.0 mm and, viewed from above, has a substantially T-shaped base body, as can be seen in particular in the illustrations in FIG. 3 can be extracted.

[0047] In detail, the fire protection insert 2 has a central section 6 and two opposing leg sections 9 and is designed to foam up at least partially or in certain areas through the application of heat, wherein in particular the central section 6 of the fire protection insert 2 has a size and shape adapted to a size and shape of a screw groove area of ​​the post.

[0048] The size and shape of the central section 6 of the fire protection insert 2 are chosen such that, in a mounted state of the fire protection insert 2, the screw groove area of ​​the post is at least partially and preferably completely covered.

[0049] On the other hand, the two opposing leg sections 9 of the fire protection insert 2 each have a size and shape adapted to a groove area for receiving a sealing strip 3 of the post.

[0050] The fire protection insert 2 consists of a fire protection material that foams up when exposed to heat.

[0051] Alternatively, it is also conceivable that the fire protection insert 2 is at least partially or in certain areas coated with an intumescent fire protection coating.

[0052] As can be seen in particular in the depictions in FIG. 3The fire protection insert 2 has a base body that is at least substantially T-shaped, wherein the base body that is at least substantially T-shaped has a first arm area 9 extending in a first direction and a second arm area 6 extending perpendicular to the first arm area, which is in particular integrally connected to the first arm area 9 in a central area of ​​the first arm area 9.

[0053] The first arm section 9 of the fire protection insert 2 can have at least one section 7 projecting forward with respect to the first direction and / or at least one section 8 recessed with respect to the first direction. Overall, the first arm section 9 is designed to be mirror-symmetrical with respect to the second arm section 6 of the fire protection insert 2.

[0054] The invention is not limited to the embodiments shown in the drawings, but results from a combination of all the features disclosed herein.

[0055] In particular, the invention relates to a post profile composed of at least two vertically joined post profile sections, wherein a continuous, mat-shaped fire protection insert 2 is sandwiched between two adjacent post profile sections at the profile joint. This fire protection insert 2 can also be a seal coated with a suitable intumescent fire-resistant coating. Reference symbol list

[0056] 1 Post profile piece 2 Fire protection insert 3 Sealing strip 6 Second arm section of the fire protection insert 7 Projecting section 8 Recessed section 9 First arm section of the fire protection insert

Claims

1. Fire protection insert (2) for the assembly joint in the separation area of ​​two adjacent posts of a post-beam construction, wherein the fire protection insert (2) has a central section and two opposing leg sections and is designed to foam up at least partially or in certain areas through the application of heat, wherein the central section of the fire protection insert (2) has a size and shape adapted to the size and shape of a screw groove area of ​​the post.

2. Fire protection insert (2) according to claim 1, wherein the size and shape of the central section of the fire protection insert (2) are selected such that, in a mounted state of the fire protection insert (2), the screw groove area of ​​the post is at least partially and preferably completely covered.

3. Fire protection insert (2) according to claim 1 or 2, wherein the two opposing leg sections of the fire protection insert (2) each have a size and shape adapted to a size and shape of a groove area for receiving a sealing strip of the post.

4. Fire protection insert (2) according to one of claims 1 to 3, wherein the fire protection insert (2) consists of a fire protection material which foams up when exposed to heat.

5. Fire protection insert (2) according to one of claims 1 to 3, wherein the fire protection insert (2) is coated at least partially or in certain areas with an intumescent fire protection coating.

6. Fire protection insert (2) according to one of claims 1 to 5, wherein - viewed in a top view of the fire protection insert (2) - the fire protection insert (2) has a base body that is at least substantially T-shaped, wherein the base body that is at least substantially T-shaped has a first arm area (9) extending in a first direction and a second arm area (6) extending perpendicular to the first arm area (9), which is in particular integrally connected to the first arm area (9) in a central region of the first arm area (9).

7. Fire protection insert (2) according to claim 6, wherein the first arm area (9) of the fire protection insert (2) has at least one area (7) projecting in the first direction.

8. Fire protection insert (2) according to claim 6 or 7, wherein the first arm area (9) of the fire protection insert (2) has at least one area (8) that is recessed with respect to the first direction.

9. Fire protection insert (2) according to one of claims 6 to 8, wherein with regard to the second arm area (6) of the fire protection insert (2) the first arm area (9) is designed in a mirror-symmetrical manner.

10. Post of a post-and-beam construction, wherein the post has a screw groove area from which an insulating strip can be received, and wherein the post has a fire protection insert (2) according to one of claims 1 to 9.

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