EP3715555B1 - Supporting structure for a formwork panel - Google Patents

Supporting structure for a formwork panel Download PDF

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Publication number
EP3715555B1
EP3715555B1 EP20160596.1A EP20160596A EP3715555B1 EP 3715555 B1 EP3715555 B1 EP 3715555B1 EP 20160596 A EP20160596 A EP 20160596A EP 3715555 B1 EP3715555 B1 EP 3715555B1
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EP
European Patent Office
Prior art keywords
supporting structure
flange
profile
edge
thickness
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EP20160596.1A
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German (de)
French (fr)
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EP3715555A1 (en
Inventor
Wilfried Häberle
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Peri SE
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Peri SE
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/38—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for plane ceilings of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/486—Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside

Definitions

  • the subject of the invention is a support structure for a formwork panel, which has a support structure and a formlining positioned on the front of the support structure and attached to the support structure, the support structure having an edge support on at least one pair of opposite edges and a plurality of cross supports between these two edge supports, which run transversely to these two edge beams.
  • cross members for formwork panels made from metallic supports are known in a variety of designs.
  • the cross members are often made of sheet metal, which has a cross-sectional shape created by folding the sheet metal.
  • Such cross members can be produced comparatively inexpensively, but from a static point of view, i.e. H. Load capacity based on the cross member weight, not optimal.
  • the KR 2018 0119830 A concerns prefabricated concrete formwork to reduce noise.
  • KR 2015 0116373 A is an environmentally friendly, lightweight molded frame in hybrid construction to absorb noise and shock.
  • the WO 2019/039699 A1 refers to a prefabricated aluminum formwork panel.
  • the object of the invention is to create an improved support structure for a formwork panel.
  • a support structure for a formwork panel which has a support structure and a formlining positioned on the front of the support structure and attached to the support structure, is proposed, the support structure having an edge support on at least one pair of opposite edges and a plurality of cross supports between these two edge supports, which run transversely to these two edge supports, with at least a partial number of the cross supports being designed as profile supports, which has a flange at its first end assigned to the front of the support structure, and a tubular one at its second end remote from the front of the support structure Hollow area, and in between has a, preferably wall-like, web connecting the first end and the second end.
  • the wall thickness of the hollow area is 0.9 to 1.2 times the wall thickness of the web.
  • the two edge beams and/or the cross beams can be made of metal.
  • the cross members are designed as profile beams with the features mentioned in the first paragraph.
  • Such cross members require some manufacturing effort, but the static performance, i.e. H. Load capacity in relation to the cross member weight is very good.
  • the load capacity results primarily from the flange and the tube-like pole area.
  • the wall-like web can be made with a relatively small material thickness.
  • the tubular hollow area leads to good handling of the support structure and the formwork panel produced with this support structure.
  • cross beams means that either only one cross beam or several cross beams or all cross beams of the formwork panel are designed in the manner mentioned in the first paragraph.
  • the cross beams can each be welded to the two edge beams.
  • the at least one profile support is an extruded aluminum profile.
  • “Aluminum” in this application means unalloyed aluminum or aluminum alloy. Extruded aluminum profiles can be produced comparatively easily and cost-effectively. It is possible that the material thickness - seen in the cross section of the profile beam - is not the same everywhere, but can be chosen differently from the point of view of static optimization.
  • the at least one profile support can have a grip hole in the web or several grip holes over the length of the profile support. Due to the handle hole or handle holes, the support structure or the formwork panel produced with the support structure can be gripped and handled particularly easily with the hands.
  • Supporting structures or formwork panels made with them - depending on their size - certainly have a considerable weight, the support structures or formwork panels have to be carried on the construction site for certain distances and that in many cases the formwork panels have to be placed in an overhead position. In all of these aspects, high load-bearing capacity per supporting structure weight or formwork panel weight, aluminum construction and static optimization of the cross beams are advantageous.
  • the handle hole or handle holes mentioned in each case can be elongated in the longitudinal direction of the profile support and to limit it or them on the side adjacent to the hollow area for a large part of its length through the hollow area.
  • the handle hole in question ends on the side in question where the hollow area of the cross member profile begins, or just before. In this way, the handle hole in question merges into the outer outline of the hollow area. The person working finds a gripping situation in which the hand can comfortably and safely grasp an area of the support structure that is comfortable to grip.
  • the flange of the relevant profile beam mentioned in the first paragraph can protrude on one or both sides of the web. It is possible for the flange to have a projection which increases the flange thickness at its projecting end or at its two projecting ends, the projection extending forward towards the front of the supporting structure and/or backwards towards the rear of the supporting structure.
  • the projection or projections introduce additional material into the flange.
  • the flange can therefore be made with a smaller width. More than one projection may be provided per flange arm.
  • the profile carrier hollow area is essentially circular in cross section. Exact circular shape without “essentially” is also possible. Other hollow area cross sections are also possible, specifically rectangular or square, each with rounded corners, triangular with rounded corners, and oval with two axes of unequal length.
  • the edge beams mentioned in the first paragraph can be longitudinal edge beams of the support structure, the support structure being longer in the longitudinal direction of these edge beams than in the transverse direction across them.
  • the support structure according to the invention can each have a, preferably metallic, edge support (which can be a transverse edge support) on a second pair of opposite edges, which extends transversely to the two edge supports of the first pair mentioned in the first paragraph. If the supporting structure has transverse edge beams, the term "cross beam" mentioned in the first paragraph should not also include the transverse edge beams, but only the transverse intermediate beams.
  • Formwork panels that have a support structure with two longitudinal edge beams and two transverse edge beams are usually called frame formwork panels.
  • the edge beams of the supporting structure can be made of aluminum.
  • the edge supports of the supporting structure can be extruded profiles.
  • the support structure according to the invention can be used for formwork panels for pouring concrete are used, especially ceiling formwork panels. But it can also be used for other formwork, e.g. B. for absorbing the lateral load of an earth embankment or for the temporary construction of a ceiling structure during repair work.
  • a further object of the invention is a formwork panel which has a support structure according to the invention, as disclosed in the previous part of the description, and a formlining attached to the support structure on the front side of the support structure.
  • the formwork panel can be a frame formwork panel.
  • the formwork panel can be a ceiling formwork panel.
  • the support structure shown has two longitudinal edge beams 4, two transverse edge beams 6 and seven cross beams 8 distributed over the length of the support structure 2 (which are therefore "transverse intermediate beams" when taking the transverse edge beams 6 into account).
  • the cross beams 8 extend from one longitudinal edge beam 4 to the other longitudinal edge beam 4 in an orientation perpendicular to the longitudinal edge beams.
  • the cross members 8 are each welded to the two longitudinal edge members 4.
  • the transverse edge beams 6 also go from one longitudinal edge beam 4 to the other longitudinal edge beam 4, namely in a perpendicular orientation to the longitudinal edge beams 4, and are welded to the longitudinal edge beams 4 at the four corners of the support structure 2.
  • Fig. 1 If you look at the drawn support structure 2 on the front (that is the one from the viewer). Fig. 1 If you place a formwork skin on the far side and attach it to the support structure 2, you have a frame formwork panel in front of you. The drawing of the Fig. 1 then looks unchanged because the edge supports 4 and 6 each have an outer edge that is pulled forward, so that these four edges cover the four edge edges of the plate-shaped formlining.
  • the seven cross members 8 are all designed the same, as in Fig. 2 drawn.
  • the in Fig. 2 Cross member 8 shown is a profile member which has a flange 10 on the front, a tubular hollow area 12 on the back and a wall-like web 14 in between.
  • the flange 10 protrudes on both sides of the web 14 and is symmetrical to the central plane of the web 14.
  • the flange 10 and the front edge of the web 14 are taken away a bit so that the profile beam 8 fits well there the profiling of the longitudinal edge beams 4 fits in.
  • the profile support 8 is symmetrical to its longitudinal center plane 16, which runs in the middle of the web 14 from the flange 10 to the hollow area 12.
  • the profile carrier 8 is an extruded part or extrusion part made of aluminum. The same applies to the longitudinal edge beams 4 and the transverse edge beams 6.
  • the cross section of the hollow region 12 is circular on the outside (with the exception of the transition into the web 14) and circular on the inside.
  • the web 14 is a narrow rectangle in cross section.
  • the flange 16 is a narrow rectangle in cross section (which is perpendicular to the web 14) each with a projection 18 at the in Fig. 3 left projecting end of the flange 10 and at the in Fig.
  • front surfaces 20 of all flanges 10 of all cross beams 8 are in the same plane as the support surfaces of the longitudinal edge beams 4 and the transverse edge beams 6, so that a formlining attached to the support structure 2 from all of the named beams 4, 6, 8 is supported evenly.
  • the formlining can e.g. B. by means of rivets which are fastened to the support structure 2 through the formlining and through the areas of the flanges 10, which are each located between the two projections 18.
  • the formlining can e.g. B. by means of rivets which are fastened to the support structure 2 through the formlining and through the areas of the flanges 10, which are each located between the two projections 18.
  • Fig. 4 drawn type of formation of the projections 18 creates a wide groove 22 in the front of the flange 10.
  • each profile support 8 has two handle holes 24, which are elongated in the longitudinal direction of the profile support 8 and are both of the same design.
  • the circumferential line of the handle hole 24 in question is straight on the back for almost the entire length of the handle hole and is closely adjacent to the line where the outer circumference of the hollow area 12 leads away from the web 14.
  • the front of the circumferential line 26 is curved with a large radius, so that the respective handle hole 24 is higher in the middle than at the distance from the middle.
  • the rear, straight part and the front, curved part of the outline 26 merge into one another with essentially circular arc-shaped sections.
  • the handle hole 24 in question is so large that a person handling the support structure 2 or the formwork panel produced with it can comfortably reach through the handle hole 24 with one hand and grasp the hollow area 12 with the thumb and fingers.
  • the center of each handle hole 24 is approximately 20% of the length of the profile beam 8 from the adjacent end of the profile beam 8.
  • the longitudinal edge beams 4 and the transverse edge beams 6 each have various holes 26. Some of the holes 26 are finger holes. Other holes are 26 intended for other purposes.
  • the longitudinal edge beams 4 and the transverse edge beams 6 all have the same cross-sectional shape, which, however, differs from the cross-sectional shape of the cross-members 8.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

Gegenstand der Erfindung ist eine Tragstruktur für ein Schalungspaneel, das eine Tragstruktur und eine an der Vorderseite der Tragstruktur positionierte, an der Tragstruktur angebrachte Schalhaut aufweist, wobei die Tragstruktur an mindestens einem Paar entgegengesetzter Ränder je einen Randträger und zwischen diesen zwei Randträgern mehrere Querträger aufweist, die quer zu diesen zwei Randträgern verlaufen.The subject of the invention is a support structure for a formwork panel, which has a support structure and a formlining positioned on the front of the support structure and attached to the support structure, the support structure having an edge support on at least one pair of opposite edges and a plurality of cross supports between these two edge supports, which run transversely to these two edge beams.

Aus metallischen Trägern aufgebaute Tragstrukturen für Schalungspaneele sind in mannigfachen Ausbildungen bekannt. Die Querträger bestehen häufig aus Blech, das eine durch Abkanten des Blechs erzeugte Querschnittsform hat. Derartige Querträger sind vergleichsweise preisgünstig herstellbar, aber in statischer Hinsicht, d. h. Tragfähigkeit bezogen auf das Querträgergewicht, nicht optimal.Support structures for formwork panels made from metallic supports are known in a variety of designs. The cross members are often made of sheet metal, which has a cross-sectional shape created by folding the sheet metal. Such cross members can be produced comparatively inexpensively, but from a static point of view, i.e. H. Load capacity based on the cross member weight, not optimal.

Die KR 2018 0119830 A betrifft eine vorgefertigte Betonschalung zur Lärmreduzierung.The KR 2018 0119830 A concerns prefabricated concrete formwork to reduce noise.

In der KR 2015 0116373 A ist ein umweltfreundlicher, leichter Formrahmen in Hybridbauweise zur Dämpfung von Lärm und Stößen angegeben.In the KR 2015 0116373 A is an environmentally friendly, lightweight molded frame in hybrid construction to absorb noise and shock.

Die WO 2019/039699 A1 bezieht sich auf eine vorgefertigte Schalungsplatte aus Aluminium.The WO 2019/039699 A1 refers to a prefabricated aluminum formwork panel.

Aufgabe der Erfindung ist es eine verbesserte Tragstruktur für ein Schalungspaneel zu schaffen.The object of the invention is to create an improved support structure for a formwork panel.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This task is solved by the features of claim 1.

Erfindungsgemäß wird eine Tragstruktur für ein Schalungspaneel, das eine Tragstruktur und eine an der Vorderseite der Tragstruktur positionierte, an der Tragstruktur angebrachte Schalhaut aufweist, vorgeschlagen, wobei die Tragstruktur an mindestens einem Paar entgegengesetzter Ränder je einen Randträger und zwischen diesen zwei Randträgern mehrere Querträger aufweist, die quer zu diesen zwei Randträgern verlaufen, wobei mindestens eine Teilanzahl der Querträger als Profilträger ausgebildet ist, der an seinem der Tragstruktur-Vorderseite zugeordneten ersten Ende einen Flansch, an seinem von der Tragstruktur-Vorderseite entfernten zweiten Ende einen rohrartigen Hohlbereich, und dazwischen einen das erste Ende und das zweite Ende verbindenden, vorzugsweise wandartigen, Steg aufweist. Die Wanddicke des Hohlbereichs beträgt das 0,9 bis 1,2-fache der Wanddicke des Stegs.According to the invention, a support structure for a formwork panel, which has a support structure and a formlining positioned on the front of the support structure and attached to the support structure, is proposed, the support structure having an edge support on at least one pair of opposite edges and a plurality of cross supports between these two edge supports, which run transversely to these two edge supports, with at least a partial number of the cross supports being designed as profile supports, which has a flange at its first end assigned to the front of the support structure, and a tubular one at its second end remote from the front of the support structure Hollow area, and in between has a, preferably wall-like, web connecting the first end and the second end. The wall thickness of the hollow area is 0.9 to 1.2 times the wall thickness of the web.

Die zwei Randträger und/oder die Querträger können aus Metall sein.The two edge beams and/or the cross beams can be made of metal.

Bei der erfindungsgemäßen Tragstruktur ist hingegen mindestens eine Teilanzahl der Querträger als Profilträger mit den im ersten Absatz genannten Merkmalen ausgebildet. Derartige Querträger erfordern zwar einigen Herstellungsaufwand, aber die statische Leistungsfähigkeit, d. h. Tragfähigkeit bezogen auf das Querträgergewicht, ist sehr gut. Die Tragfähigkeit resultiert primär aus dem Flansch und dem rohrartigen Polbereich. Der wandartige Steg kann in relativ kleiner Materialdicke ausgeführt werden. Der rohrartige Hohlbereich führt zu guter Handhabbarkeit der Tragstruktur und des mit dieser Tragstruktur hergestellten Schalungspaneels.In the support structure according to the invention, however, at least some of the cross members are designed as profile beams with the features mentioned in the first paragraph. Such cross members require some manufacturing effort, but the static performance, i.e. H. Load capacity in relation to the cross member weight is very good. The load capacity results primarily from the flange and the tube-like pole area. The wall-like web can be made with a relatively small material thickness. The tubular hollow area leads to good handling of the support structure and the formwork panel produced with this support structure.

Die Ausdrucksweise "mindestens eine Teilanzahl der Querträger" bedeutet, dass entweder nur ein Querträger oder mehrere Querträger oder alle Querträger des Schalungspaneels in der im ersten Absatz genannten Art ausgebildet sind.The expression "at least a partial number of cross beams" means that either only one cross beam or several cross beams or all cross beams of the formwork panel are designed in the manner mentioned in the first paragraph.

Die Querträger können jeweils an die beiden Randträger angeschweißt sein.The cross beams can each be welded to the two edge beams.

Die Erfindung sieht die Möglichkeit vor, dass der mindestens eine Profilträger ein Strangpressprofil aus Aluminium ist. "Aluminium" steht in dieser Anmeldung für unlegiertes Aluminium oder für Aluminiumlegierung. Strangpressprofile aus Aluminium lassen sich vergleichsweise einfach und kostengünstig produzieren. Dabei besteht die Möglichkeit, dass die Materialdicke - im Querschnitt des Profilträgers gesehen - nicht überall gleich ist, sondern unter dem Gesichtspunkt der statischen Optimierung unterschiedlich gewählt werden kann.The invention provides for the possibility that the at least one profile support is an extruded aluminum profile. “Aluminum” in this application means unalloyed aluminum or aluminum alloy. Extruded aluminum profiles can be produced comparatively easily and cost-effectively. It is possible that the material thickness - seen in the cross section of the profile beam - is not the same everywhere, but can be chosen differently from the point of view of static optimization.

Bei der erfindungsgemäßen Tragstruktur, wie sie im bisherigen Teil der Beschreibung offenbart worden ist, kann der mindestens eine Profilträger im Steg ein Griff- loch oder über die Länge des Profilträgers mehrere Grifflöcher aufweisen. Aufgrund des Grifflochs bzw. der Grifflöcher lässt sich die Tragstruktur bzw. das mit der Tragstruktur hergestellte Schalungspaneel besonders gut mit den Händen greifen und handhaben. Um den Wert dieser Aussage richtig einzuordnen, muss man sich vor Augen halten, dass Tragstrukturen bzw. damit hergestellte Schalungspaneele - je nach Größe - durchaus ein beträchtliches Gewicht haben, das die Tragstrukturen bzw. die Schalungspaneele an der Baustelle für gewisse Strecken getragen werden müssen und dass die Schalungspaneele in vielen Fällen in eine Über-Kopf-Einsatzpositiongebracht werden müssen. Bei all diesen Gesichtspunkten sind hohe Tragfähigkeit pro Tragstrukturgewicht bzw. Schalungspaneelgewicht, Aluminium-Bauweise und statische Optimierung der Querträger von Vorteil.In the support structure according to the invention, as disclosed in the previous part of the description, the at least one profile support can have a grip hole in the web or several grip holes over the length of the profile support. Due to the handle hole or handle holes, the support structure or the formwork panel produced with the support structure can be gripped and handled particularly easily with the hands. In order to properly understand the value of this statement, one must keep in mind that Supporting structures or formwork panels made with them - depending on their size - certainly have a considerable weight, the support structures or formwork panels have to be carried on the construction site for certain distances and that in many cases the formwork panels have to be placed in an overhead position. In all of these aspects, high load-bearing capacity per supporting structure weight or formwork panel weight, aluminum construction and static optimization of the cross beams are advantageous.

Es besteht die Möglichkeit, das genannte Griffloch, oder die genannten Grifflöcher jeweils, in Längserstreckungsrichtung des Profilträgers länglich auszubilden und es bzw. sie an der dem Hohlbereich benachbarten Seite für einen Großteil seiner bzw. ihrer Länge durch den Hohlbereich zu begrenzen. In anderen Worten, das betreffende Griffloch endet an der betreffenden Seite dort, wo der Hohlbereich des Querträger-Profils beginnt, oder kurz davor. Auf diese Weise geht gleichsam das betreffende Griffloch in den Außenumriss des Hohlbereichs über. Die arbeitende Person findet eine Griffsituation vor, bei der die Hand einen Griff-angenehmen Bereich der Tragstruktur bequem und sicher umgreifen kann.It is possible to design the handle hole or handle holes mentioned in each case to be elongated in the longitudinal direction of the profile support and to limit it or them on the side adjacent to the hollow area for a large part of its length through the hollow area. In other words, the handle hole in question ends on the side in question where the hollow area of the cross member profile begins, or just before. In this way, the handle hole in question merges into the outer outline of the hollow area. The person working finds a gripping situation in which the hand can comfortably and safely grasp an area of the support structure that is comfortable to grip.

Der im ersten Absatz angesprochene Flansch des betreffenden Profilträgers kann einseitig oder beidseitig des Stegs vorragen. Es ist möglich, dass der Flansch an seinem Vorrageende oder an seinen zwei Vorrageenden jeweils, einen die Flanschdicke vergrößernden Vorsprung hat, wobei der Vorsprung nach vorn in Richtung zur Tragstruktur-Vorderseite und/oder nach hinten in Richtung der Tragstruktur-Rückseite. Der Vorsprung bzw. die Vorsprünge bringen zusätzliches Material in den Flansch. Der Flansch kann demzufolge mit geringerer Breite ausgeführt werden. Es können mehr als ein Vorsprung pro Flanscharm vorgesehen sein.The flange of the relevant profile beam mentioned in the first paragraph can protrude on one or both sides of the web. It is possible for the flange to have a projection which increases the flange thickness at its projecting end or at its two projecting ends, the projection extending forward towards the front of the supporting structure and/or backwards towards the rear of the supporting structure. The projection or projections introduce additional material into the flange. The flange can therefore be made with a smaller width. More than one projection may be provided per flange arm.

Bei der erfindungsgemäßen Tragstruktur, wie sie im bisherigen Teil der Beschreibung offenbart worden ist, ist der Profilträger-Hohlbereich im Querschnitt im Wesentlichen kreisförmig. Auch genaue Kreisform ohne "im Wesentlichen" ist möglich. Auch andere Hohlbereich-Querschnitte sind möglich, wobei hier konkret rechteckig oder quadratisch, jeweils mit abgerundeten Ecken, dreieckig mit abgerundeten Ecken, und oval mit zwei Achsen ungleicher Länge genannt werden sollen.In the support structure according to the invention, as disclosed in the previous part of the description, the profile carrier hollow area is essentially circular in cross section. Exact circular shape without “essentially” is also possible. Other hollow area cross sections are also possible, specifically rectangular or square, each with rounded corners, triangular with rounded corners, and oval with two axes of unequal length.

Es gibt Ausführungsformen der Erfindung, wie sie im bisherigen Teil der Beschreibung offenbart worden ist, bei denen das Querträger-Profil mit den nachfolgenden Dimensionierungen ausgeführt ist:

  1. (a) der Steg hat eine Dicke im Bereich 0,8 bis 2,5 mm oder im Bereich 0,8 bis 2,0 mm, und/oder
  2. (b) der Steg hat eine Höhe im Bereich 50 bis 110 mm, und/oder
  3. (c) der Flansch hat eine Breite im Bereich 15 bis 40 mm, und/oder
  4. (d) der Hohlbereich hat, gemessen außen und rechtwinklig zur Mittelebene des Stegs, eine Dicke im Bereich 15 bis 30 mm, und/oder
  5. (e) die Dicke des Flanschs, ggf. abgesehen von dem mindestens einen Vorsprung, beträgt das 0,7 bis 1,2-fache der Wanddicke des Stegs.
There are embodiments of the invention, as disclosed in the previous part of the description, in which the cross member profile with the following Dimensioning is carried out:
  1. (a) the web has a thickness in the range 0.8 to 2.5 mm or in the range 0.8 to 2.0 mm, and / or
  2. (b) the web has a height in the range 50 to 110 mm, and/or
  3. (c) the flange has a width in the range 15 to 40 mm, and/or
  4. (d) the hollow area, measured outside and perpendicular to the central plane of the web, has a thickness in the range 15 to 30 mm, and / or
  5. (e) the thickness of the flange, possibly apart from the at least one projection, is 0.7 to 1.2 times the wall thickness of the web.

Diese Dimensionierungen sind unter den Gesichtspunkten guter Herstellbarkeit, guter Materialausnutzung und guter Formhaltung des betreffenden Querträgers, insbesondere aus Aluminium, beim Abkühlen des Querträgers nach dem Extrudieren mit erhöhter Temperatur ermittelt worden. Diese Dimensionierungen machen besonders Sinn, wenn der betreffende Profilträger aus Aluminium stranggepresst bzw. extrudiert wird.These dimensions have been determined from the aspects of good manufacturability, good material utilization and good shape retention of the cross member in question, in particular made of aluminum, when the cross member cools down after extrusion at an elevated temperature. These dimensions make particular sense if the profile beam in question is extruded or extruded from aluminum.

Die im ersten Absatz genannten Randträger können Längs-Randträger der Tragstruktur sein, wobei die Tragstruktur in Längsrichtung dieser Randträger länger ist als in der Querrichtung quer dazu. Die erfindungsgemäße Tragstruktur kann an einem zweiten Paar entgegengesetzter Ränder je einen, vorzugsweise metallischen, Randträger (der ein Quer-Randträger sein kann) aufweisen, der sich quer zu den zwei Randträgern des im ersten Absatz genannten, ersten Paars erstreckt. Wenn die Tragstruktur Quer-Randträger aufweist, soll der im ersten Absatz genannte Begriff "Querträger" nicht auch die Quer-Randträger umfassen, sondern nur die Quer-Zwischenträger. Schalungspaneele, die eine Tragstruktur mit zwei Längs-Randträgern und zwei Quer-Randträgern besitzen, werden normalerweise Rahmenschalungspaneele genannt.The edge beams mentioned in the first paragraph can be longitudinal edge beams of the support structure, the support structure being longer in the longitudinal direction of these edge beams than in the transverse direction across them. The support structure according to the invention can each have a, preferably metallic, edge support (which can be a transverse edge support) on a second pair of opposite edges, which extends transversely to the two edge supports of the first pair mentioned in the first paragraph. If the supporting structure has transverse edge beams, the term "cross beam" mentioned in the first paragraph should not also include the transverse edge beams, but only the transverse intermediate beams. Formwork panels that have a support structure with two longitudinal edge beams and two transverse edge beams are usually called frame formwork panels.

Die Randträger der Tragstruktur können aus Aluminium sein. Die Randträger der Tragstruktur können Strangpressprofile sein.The edge beams of the supporting structure can be made of aluminum. The edge supports of the supporting structure can be extruded profiles.

Die erfindungsgemäße Tragstruktur kann für Schalungspaneele für das Gießen von Beton eingesetzt werden, insbesondere Deckenschalungspaneele. Sie kann aber auch für andere Schalungen eingesetzt werden, z. B. für das Abfangen der seitlichen Last einer Erdböschung oder für das temporäre Unterfangen einer Deckenkonstruktion bei Reparaturarbeiten.The support structure according to the invention can be used for formwork panels for pouring concrete are used, especially ceiling formwork panels. But it can also be used for other formwork, e.g. B. for absorbing the lateral load of an earth embankment or for the temporary construction of a ceiling structure during repair work.

Weiterer Gegenstand der Erfindung ist ein Schalungspaneel, das eine erfindungsgemäße Tragstruktur, wie sie im bisherigen Teil der Beschreibung offenbart worden ist, und an der Tragstruktur-Vorderseite eine an der Tragstruktur angebrachte Schalhaut aufweist. Das Schalungspaneel kann ein Rahmenschalungspaneel sein. Das Schalungspaneel kann ein Deckenschalungspaneel sein.A further object of the invention is a formwork panel which has a support structure according to the invention, as disclosed in the previous part of the description, and a formlining attached to the support structure on the front side of the support structure. The formwork panel can be a frame formwork panel. The formwork panel can be a ceiling formwork panel.

Die Erfindung und konkretere Ausführungen der Erfindung werden nachfolgend anhand zeichnerisch dargestellter Ausführungsbeispiele noch näher erläutert. Es zeigt:

Fig. 1
eine Tragstruktur für ein Schalungspaneel, in perspektivischer Darstellung und in Blickrichtung schräg auf ihre Rückseite;
Fig. 2
einen der Querträger der Tragstruktur von Fig. 1, in perspektivischer Darstellung schräg auf seine Vorderseite;
Fig. 3
den Querträger von Fig. 2, im Querschnitt bzw. Stirnansicht und in größerem Maßstab;
Fig. 4
einen abgeänderten Querträger-Querschnitt.
The invention and more specific embodiments of the invention are explained in more detail below using exemplary embodiments shown in the drawings. It shows:
Fig. 1
a support structure for a formwork panel, in perspective view and looking obliquely towards its back;
Fig. 2
one of the cross members of the supporting structure Fig. 1 , in perspective view diagonally on its front;
Fig. 3
the cross member from Fig. 2 , in cross section or front view and on a larger scale;
Fig. 4
a modified cross member cross section.

Die in Fig. 1 gezeichnete Tragstruktur weist zwei Längs-Randträger 4, zwei Quer-Randträger 6 und sieben über die Länge der Tragstruktur 2 verteilte Querträger 8 (die also bei Berücksichtigung der Quer-Randträger 6 "Quer-Zwischenträger" sind) auf. Die Querträger 8 erstrecken sich von dem einen Längs-Randträger 4 zu dem anderen Längs-Randträger 4 in zu den Längs-Randträgern rechtwinkliger Ausrichtung. Die Querträger 8 sind jeweils mit den beiden Längs-Randträgern 4 verschweißt. Die Quer-Randträger 6 gehen ebenfalls von dem einen Längs-Randträger 4 zu dem anderen Längs-Randträger 4, und zwar in zu den Längs-Randträgern 4 rechtwinkliger Ausrichtung, und sind an den vier Ecken der Tragstruktur2 mit den Längs-Randträgern 4 verschweißt.In the Fig. 1 The support structure shown has two longitudinal edge beams 4, two transverse edge beams 6 and seven cross beams 8 distributed over the length of the support structure 2 (which are therefore "transverse intermediate beams" when taking the transverse edge beams 6 into account). The cross beams 8 extend from one longitudinal edge beam 4 to the other longitudinal edge beam 4 in an orientation perpendicular to the longitudinal edge beams. The cross members 8 are each welded to the two longitudinal edge members 4. The transverse edge beams 6 also go from one longitudinal edge beam 4 to the other longitudinal edge beam 4, namely in a perpendicular orientation to the longitudinal edge beams 4, and are welded to the longitudinal edge beams 4 at the four corners of the support structure 2.

Alle genannten Träger 4, 6, 8 sind aus Aluminium.All of the carriers 4, 6, 8 mentioned are made of aluminum.

Wenn man auf die gezeichnete Tragstruktur 2 an deren Vorderseite (das ist die von dem Betrachter der Fig. 1 entferntere Seite) eine Schalhaut auflegt und an der Tragstruktur 2 befestigt, hat man ein Rahmenschalungspaneel vor sich. Die Zeichnung der Fig. 1 sieht dann unverändert aus, weil die Randträger 4 und 6 jeweils einen äußeren, nach vorn vorgezogenen Rand haben, so dass diese vier Ränder die vier Randkanten der plattenförmigen Schalhaut abdecken.If you look at the drawn support structure 2 on the front (that is the one from the viewer). Fig. 1 If you place a formwork skin on the far side and attach it to the support structure 2, you have a frame formwork panel in front of you. The drawing of the Fig. 1 then looks unchanged because the edge supports 4 and 6 each have an outer edge that is pulled forward, so that these four edges cover the four edge edges of the plate-shaped formlining.

Die sieben Querträger 8 sind alle gleich ausgebildet, und zwar so, wie in Fig. 2 gezeichnet. Der in Fig. 2 gezeichnete Querträger 8 ist ein Profilträger, der vorderseitig einen Flansch 10, rückseitig einen rohrartigen Hohlbereich 12 und dazwischen einen wandartigen Steg 14 aufweist. Der Flansch 10 ragt beidseitig des Stegs 14 vor und ist symmetrisch zur Mittelebene des Stegs 14. In den beiden Längs-Endbereichen des Profilträgers 8 sind der Flansch 10 und der vorderseitige Rand des Stegs 14 ein Stück weit weggenommen, damit der Profilträger 8 dort gut in die Profilierung der Längs-Randträger 4 hineinpasst.The seven cross members 8 are all designed the same, as in Fig. 2 drawn. The in Fig. 2 Cross member 8 shown is a profile member which has a flange 10 on the front, a tubular hollow area 12 on the back and a wall-like web 14 in between. The flange 10 protrudes on both sides of the web 14 and is symmetrical to the central plane of the web 14. In the two longitudinal end regions of the profile beam 8, the flange 10 and the front edge of the web 14 are taken away a bit so that the profile beam 8 fits well there the profiling of the longitudinal edge beams 4 fits in.

In Fig. 3 sieht man den Querschnitt des Profilträgers 8 in größerem Maßstab. Der Profilträger 8 ist symmetrisch zu seiner Längsmittelebene 16, die in der Mitte des Stegs 14 vom Flansch 10 zum Hohlbereich 12 verläuft. Der Profilträger 8 ist ein Strangpressteil bzw. Extrusionsteil aus Aluminium. Das Gleiche gilt für die Längs- Randträger 4 und die Quer-Randträger 6. Der Hohlbereich 12 ist im Querschnitt außen kreisförmig (mit Ausnahme des Übergangs in den Steg 14) und innen kreisförmig. Der Steg 14 ist im Querschnitt ein schmales Rechteck. Der Flansch 16 ist im Querschnitt ein schmales Rechteck (welches rechtwinklig zu dem Steg 14 liegt) mit jeweils einem Vorsprung 18 am in Fig. 3 linken Vorrageende des Flanschs 10 und am in Fig. 3 rechten Vorrageende des Flanschs 10. Die Vorsprünge 18 vergrößern dort die Flanschdicke. In Fig. 3 springen die Vorsprünge nach unten, d. h. nach hinten bezogen auf die Gesamt-Tragstruktur bzw. zur Rückseite der Tragstruktur 2 hin gerichtet vor. Bei der Abwandlung des Profilträgers 8, wie sie in Fig. 4 gezeichnet ist, springen die zwei Vorsprünge 18 stattdessen nach vorn vor.In Fig. 3 you can see the cross section of the profile beam 8 on a larger scale. The profile support 8 is symmetrical to its longitudinal center plane 16, which runs in the middle of the web 14 from the flange 10 to the hollow area 12. The profile carrier 8 is an extruded part or extrusion part made of aluminum. The same applies to the longitudinal edge beams 4 and the transverse edge beams 6. The cross section of the hollow region 12 is circular on the outside (with the exception of the transition into the web 14) and circular on the inside. The web 14 is a narrow rectangle in cross section. The flange 16 is a narrow rectangle in cross section (which is perpendicular to the web 14) each with a projection 18 at the in Fig. 3 left projecting end of the flange 10 and at the in Fig. 3 right projecting end of the flange 10. The projections 18 increase the flange thickness there. In Fig. 3 the projections jump downwards, ie directed backwards in relation to the overall support structure or towards the rear of the support structure 2. In the modification of the profile support 8, as shown in Fig. 4 is drawn, the two projections 18 instead project forward.

Der Profilträger 8 hat bei der gezeichneten Ausführungsform die folgenden Dimensionierungen:

  • Dicke des Stegs 14: 1,6 mm;
  • Höhe des Stegs 14 von Hohlbereich 12 zu Flansch 10: 73 mm;
  • Breite des Flanschs 10 in Fig. 3: 25 mm;
  • Außenbreite des Hohlbereichs 12 in Fig. 3: 20 mm;
  • Wanddicke des Hohlbereichs 12: 1,7 mm.
In the embodiment shown, the profile carrier 8 has the following dimensions:
  • Thickness of the bar 14: 1.6 mm;
  • Height of the web 14 from the hollow area 12 to the flange 10: 73 mm;
  • Width of flange 10 in Fig. 3 : 25mm;
  • Outside width of the hollow area 12 in Fig. 3 : 20mm;
  • Wall thickness of the hollow area 12: 1.7 mm.

Es wird betont, dass die Vorderflächen 20 aller Flansche 10 aller Querträger 8 sich in der gleichen Ebene wie die Auflageflächen der Längs-Randträger 4 und der Quer-Randträger 6 befinden, so dass eine auf der Tragstruktur 2 angebrachte Schalhaut von allen genannten Trägern 4, 6, 8 gleichmäßig abgestützt wird.It is emphasized that the front surfaces 20 of all flanges 10 of all cross beams 8 are in the same plane as the support surfaces of the longitudinal edge beams 4 and the transverse edge beams 6, so that a formlining attached to the support structure 2 from all of the named beams 4, 6, 8 is supported evenly.

Die Schalhaut kann z. B. mittels Nieten, die durch die Schalhaut und durch die Bereiche der Flansche 10, die sich jeweils zwischen den zwei Vorsprüngen 18 befinden, an der Tragstruktur 2 befestigt werden. Die in Fig. 4 gezeichnete Art der Ausbildung der Vorsprünge 18 schafft eine breite Rinne 22 in der Vorderseite des Flanschs 10. Dort kann man z. B. eine Kleberschicht hineingeben, um die Schalhaut mit den Querträgern 8 zu verkleben.The formlining can e.g. B. by means of rivets which are fastened to the support structure 2 through the formlining and through the areas of the flanges 10, which are each located between the two projections 18. In the Fig. 4 drawn type of formation of the projections 18 creates a wide groove 22 in the front of the flange 10. There you can z. B. add a layer of adhesive to glue the formlining to the cross members 8.

In den Fig. 1 und 2 sieht man, dass jeder Profilträger 8 zwei Grifflöcher 24 besitzt, die in Längsrichtung des Profilträgers 8 länglich sind und beide gleich ausgebildet sind. Die Umfangslinie des betreffenden Grifflochs 24 ist rückseitig nahezu für die gesamte Griffloch-Länge geradlinig und eng benachbart der Linie, wo der Außenumfang des Hohlbereichs 12 von dem Steg 14 wegführt. Die Vorderseite der Umfangslinie 26 verläuft mit großem Radius geschwungen, so dass das jeweilige Griffloch 24 in der Mitte höher ist als im Abstand von der Mitte. An den Enden des betreffenden Grifflochs 24 gehen der rückseitige, geradlinige Teil und der vorderseitige, gewölbte Teil der Umrisslinie 26 mit im Wesentlichen kreisbogenförmigen Abschnitten ineinander über. Insgesamt ist das betreffende Griffloch 24 so groß, dass eine die Tragstruktur 2 bzw. das damit hergestellte Schalungspaneel handhabende Person mit einer Hand bequem durch das Griffloch 24 greifen und den Hohlbereich 12 mit dem Daumen und den Fingern umgreifen kann. Die Mitte jedes Grifflochs 24 liegt etwa 20 % der Länge des Profilträgers 8 von dem benachbarten Stirnende des Profilträgers 8 entfernt.In the Fig. 1 and 2 you can see that each profile support 8 has two handle holes 24, which are elongated in the longitudinal direction of the profile support 8 and are both of the same design. The circumferential line of the handle hole 24 in question is straight on the back for almost the entire length of the handle hole and is closely adjacent to the line where the outer circumference of the hollow area 12 leads away from the web 14. The front of the circumferential line 26 is curved with a large radius, so that the respective handle hole 24 is higher in the middle than at the distance from the middle. At the ends of the relevant handle hole 24, the rear, straight part and the front, curved part of the outline 26 merge into one another with essentially circular arc-shaped sections. Overall, the handle hole 24 in question is so large that a person handling the support structure 2 or the formwork panel produced with it can comfortably reach through the handle hole 24 with one hand and grasp the hollow area 12 with the thumb and fingers. The center of each handle hole 24 is approximately 20% of the length of the profile beam 8 from the adjacent end of the profile beam 8.

Man sieht in Fig. 1, dass auch die Längs-Randträger 4 und die Quer-Randträger 6 jeweils diverse Löcher 26 haben. Ein Teil der Löcher 26 sind Grifflöcher. Andere Löcher 26 sind für andere Zwecke vorgesehen. Die Längs-Randträger 4 und die Quer-Randträger 6 haben alle die gleiche Querschnittsform, die sich aber von der Querschnittsform der Querträger 8 unterscheidet.You see in Fig. 1 that the longitudinal edge beams 4 and the transverse edge beams 6 each have various holes 26. Some of the holes 26 are finger holes. Other holes are 26 intended for other purposes. The longitudinal edge beams 4 and the transverse edge beams 6 all have the same cross-sectional shape, which, however, differs from the cross-sectional shape of the cross-members 8.

Claims (13)

  1. Supporting structure (2) for a formwork panel having a supporting structure (2) and a formwork skin positioned on the front of the supporting structure (2) and attached to the supporting structure (2),
    wherein the supporting structure (2) has a respective edge girder (4,6) on at least one pair of opposite edges and a plurality of transverse girders (8) between these two edge girders (4,6) which run transversely to these two edge girders (4,6),
    wherein at least some of the transverse girders (8) are designed as a profile girder (8), comprising a flange (10) at its first end arranged at the front of the supporting structure, a tubular hollow section (12) having a substantially circular cross-section at its second end away from the front of the supporting structure, and between them a preferably wall-like member (14) connecting the first end and the second end,
    characterized in that
    the wall thickness of the hollow section (12) is 0.95 to 1.2 times the wall thickness of the member (14).
  2. Supporting structure (2) according to claim 1,
    characterized in that the at least one profile girder (8) is an extruded profile made of aluminum.
  3. Supporting structure (2) according to claim 1 or 2,
    characterized in that the at least one profile girder (8) has a finger hole (24) in the member or a plurality of finger holes (24) over the length of the profile girder (8).
  4. Supporting structure (2) according to claim 3,
    characterized in that the finger hole (24), or the finger holes (24) respectively, is or are elongated in the longitudinal extension direction of the profile girder (8) and is or are delimited on the side adjacent to the hollow section (12) by the hollow section (12) for a large part of its or their length.
  5. Supporting structure (2) according to one of claims 1 to 4,
    characterized in that the at least one profile girder (8) has a flange (10) projecting on both sides of the member (14).
  6. Supporting structure (2) according to one of claims 1 to 5,
    characterized in that the flange (10) has, at its projecting end, or its projecting ends, a projection (18) which increases the thickness of the flange, with the projection (18) projecting forward towards the front of the supporting structure (2) and/or backward towards the rear of the supporting structure.
  7. Supporting structure (2) according to one of claims 1 to 6,
    characterized in that the member (14) has a thickness in the range 0.8 to 2.5 mm or in the range 0.8 to 2.0 mm.
  8. Supporting structure (2) according to one of claims 1 to 7,
    characterized in that the member (14) has a height in the range 50 to 110 mm.
  9. Supporting structure (2) according to one of claims 1 to 8,
    characterized in that the flange (10) has a width in the range 15 to 40 mm.
  10. Supporting structure (2) according to one of claims 1 to 9,
    characterized in that the hollow section (12), measured on the outside and perpendicular to the central plane of the member (14), has a thickness in the range 15 to 30 mm.
  11. Supporting structure (2) according to one of claims 1 to 10,
    characterized in that the thickness of the flange (10), if applicable aside from the at least one projection (18), is 0.7 to 1.2 times the wall thickness of the member (14).
  12. Supporting structure (2) according to one of claims 1 to 11,
    characterized in that it has, on a second pair of opposite edges, one edge girder each extending transversely to the two edge girders (4,6) of the first pair.
  13. Formwork panel,
    characterized in that it has a supporting structure (2) according to one of claims 1 to 12 and a formwork skin attached to the supporting structure (2) at the supporting structure front side.
EP20160596.1A 2019-03-22 2020-03-03 Supporting structure for a formwork panel Active EP3715555B1 (en)

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CN111719854A (en) 2020-09-29
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US20200325693A1 (en) 2020-10-15
EP3715555A1 (en) 2020-09-30
US11519187B2 (en) 2022-12-06

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