EP0073733A1 - Grid-like girder for the support of underground galleries and shafts - Google Patents

Grid-like girder for the support of underground galleries and shafts Download PDF

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Publication number
EP0073733A1
EP0073733A1 EP82810334A EP82810334A EP0073733A1 EP 0073733 A1 EP0073733 A1 EP 0073733A1 EP 82810334 A EP82810334 A EP 82810334A EP 82810334 A EP82810334 A EP 82810334A EP 0073733 A1 EP0073733 A1 EP 0073733A1
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EP
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Prior art keywords
lattice girder
belt
welded
girder according
bars
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Granted
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EP82810334A
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German (de)
French (fr)
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EP0073733B1 (en
Inventor
Edgar Arnold
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Pantex Stahl AG
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Pantex-Stahl AG
Pantex Stahl AG
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Priority to AT82810334T priority Critical patent/ATE13577T1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches

Definitions

  • the invention relates to a lattice girder for underground track and shaft expansion according to the preamble of claim 1.
  • Welded lattice girders are used for the construction of arched expansion frames and as reinforcement for the subsequent concreting during the expansion of tunnels and pit sections in pressurized mountains.
  • Such a lattice girder is for example in DE-OS 29 51 874 described. It has three or more parallel belt bars which are stiffened in a truss-like manner by means of individual zigzag bars arranged in zigzag fashion. The kink, shape and cross-sectional stability of this lattice girder is relatively small.
  • the belt bars tend to buckle and buckle under load.
  • the infill bars are individually welded to the belt bars, whereby the many welds cause the material to become brittle. The welds can break under heavy use, which leads to the rebars being pulled out.
  • a significant increase in the bending stiffness and load-bearing capacity as well as the torsional strength can be achieved by stiffening elements arranged centrally between the belt bars, as can be seen from DE-OS 27 09 242.
  • Composite sheet metal pressed parts are provided here as inner stiffeners, which have laterally projecting, eyelet-like projections, which encompass the belt bars in a form-fitting manner.
  • the sheet metal parts are complicated to manufacture and accordingly expensive. Your biggest disadvantage is that it raises you liche splash shadow so that the perfect bond of the lattice girder with the concrete is not guaranteed.
  • a lighter lattice girder is sufficient, which is simpler in construction and can be constructed accordingly cheaper.
  • a lattice girder should nevertheless have a sufficiently high level of dimensional stability or cross-sectional stability both against bending stresses and against stresses due to buckling and torsion. It should be possible to use it at least partially load-bearing until it is concreted in and its belt bars form the reinforcement of the final reinforced concrete structure.
  • the infill must be designed so that there are no splash shadows when concreting.
  • the object of the invention is now to provide a lattice girder that meets these requirements. According to the invention, this is done by the features defined in the characterizing part of claim 1.
  • the lattice girder shown in the figures has three parallel belt bars 1, 2, 3, which are normal cut to form a triangle.
  • the two upper chords 1, 2 facing the mountains, which are subjected to tensile stress when loaded, have a smaller cross section than the lower chord 3, which is stressed.
  • the belt bars 1, 2, 3 are spatially fixed to one another by means of inner stiffening elements 4.
  • Each stiffening element 4 is made in one piece from a round steel rod.
  • the round steel rod is first flat, i. H. in the plane, curved, in such a way that two equilateral triangles 5, 6 are formed, the tips 7, 8 of which are connected to one another via two short parallel rod pieces 9.
  • the two ends 10 of the rod are pushed together and then butt welded together.
  • This two-dimensional structure is then deformed in a further work operation to form the three-dimensional stiffening element 4, two kinks occurring at the tips 7, 8.
  • the two triangles 5, 6 of the stiffening element 4 are arranged obliquely to the belt bars 1, 2, 3 and enclose an acute angle a with them.
  • the stiffening element 4 is symmetrical with respect to a central plane 15 perpendicular to the belt rods 1, 2, 3.
  • each lattice girder segment To connect two lattice girder segments, they are joined together at the joints. At the ends of each lattice girder segment, two angle irons 16 are used Welded holes. The segments can then be pushed together at the ends and screwed together.
  • two plates 18 with bores 19 can be welded onto the lattice girder segment on both sides.
  • a V-shaped connecting element 20 with two rows of holes 21 is pushed from below onto the ends of two adjacent lattice girder segments and screwed to the plates 18, as can be seen in FIG. 6.
  • the stiffening elements 4, 19 are inserted at a distance from one another between the belt bars and welded manually or with a welding machine. Then the angle iron or the end plates are attached to the ends.
  • the ferti Lattice girder segments are only finally connected to one another on site to form the expansion frame.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Road Paving Structures (AREA)
  • Railway Tracks (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1. Lattice girder for underground panel lining and shaft lining, with three parallel chord members (1, 2 and 3), which in cross-section form a triangle, being spatially fixed to one another by means of strengthening elements (4), characterised in that each strengthening element (4) consists integrally of a profiled bar bent into two triangles (5 and 6) inclined towards one another and running towards the chords members (1, 2 and 3), and that the corners of the triangles (5 and 6) are welded from the inside to the chord members (1, 2 and 3).

Description

Die Erfindung betrifft einen Gitterträger für den Untertag-Strecken- und Schachtausbau gemäss dem Oberbegriff des Patentanspruches 1.The invention relates to a lattice girder for underground track and shaft expansion according to the preamble of claim 1.

Beim Ausbau von Tunnel und Grubenstrecken in druckhaftem Gebirge werden geschweisste Gitterträger verwendet zur Herstellung gewölbter Ausbaurahmen und als Bewehrung bei der anschliessenden Betonierung.Welded lattice girders are used for the construction of arched expansion frames and as reinforcement for the subsequent concreting during the expansion of tunnels and pit sections in pressurized mountains.

Ein solcher Gitterträger ist beispielsweise in der DE-OS 29 51 874 beschrieben. Er weist drei ober mehr parallele Gurtstäbe auf, die mittels zickzackförmig angeordneter, einzelner Ausfachungsstäbe fachwerkartig versteift sind. Die Knick-, Form- und Querschnittsstabilität dieses Gitterträgers ist jedoch relativ klein. Die Gurtstäbe neigen unter Belastung zum Einbeulen und seitlichem Ausknicken. Die Ausfachungsstäbe sind einzeln an den Gurtstäben angeschweisst, wobei die vielen Schweissstellen eine Versprödung des Materials verursachen. Unter starker Beanspruchung können die Schweissstellen brechen, was zum Ausscheren der Ausfachungsstäbe führt.Such a lattice girder is for example in DE-OS 29 51 874 described. It has three or more parallel belt bars which are stiffened in a truss-like manner by means of individual zigzag bars arranged in zigzag fashion. The kink, shape and cross-sectional stability of this lattice girder is relatively small. The belt bars tend to buckle and buckle under load. The infill bars are individually welded to the belt bars, whereby the many welds cause the material to become brittle. The welds can break under heavy use, which leads to the rebars being pulled out.

Eine wesentliche Erhöhung der Biegesteifigkeit und Biegetragfähigkeit sowie auch der Torsionsfestigkeit kann durch mittig zwischen den-Gurtstäben angeordnete Aussteifungselemente erzielt werden, wie dies aus der DE-OS 27 09 242 hervorgeht. Hier werden als innere Aussteifung zusammengesetzte Blechpressteile vorgesehen, die seitlich vorkragende, ösenartige Ansätze aufweisen, die die Gurtstäbe formschlüssig umgreifen. Die Blechpressteile sind kompliziert in der Herstellung und entsprechend teuer. Ihr grösster Nachteil liegt aber darin, dass sie einen erheblichen Spritzschatten bilden, so dass der einwandfreie Verbund der Gitterträger mit dem Beton nicht gewährleistet ist.A significant increase in the bending stiffness and load-bearing capacity as well as the torsional strength can be achieved by stiffening elements arranged centrally between the belt bars, as can be seen from DE-OS 27 09 242. Composite sheet metal pressed parts are provided here as inner stiffeners, which have laterally projecting, eyelet-like projections, which encompass the belt bars in a form-fitting manner. The sheet metal parts are complicated to manufacture and accordingly expensive. Your biggest disadvantage is that it raises you liche splash shadow so that the perfect bond of the lattice girder with the concrete is not guaranteed.

Ein anderer bekannter Gitterträger mit mittig angeordneten Aussteifungselementen in Form von geknickten Rundstäben, die je in einem zentralen Knoten miteinander verbunden sind, ist in der DE-OS 30 14 402 beschrieben. Durch die Verwendung von Rundeisen für die Aussteifung können Spritzschatten beim Betonieren vermieden werden. Die mittige Anordnung des zentralen Verbindungsbereiches jedes Aussteifungselementes innerhalb des Querschnittes der Gurtprofile trägt zur hohen Belastbarkeit dieses Gitterträgers bei. Die Konstruktion ist relativ aufwendig, so dass solche Gitterträger zweckmässigerweise nur dort einzusetzen sind, wo infoigen von hohem Gebirgsdruck, Geröll oder losem Gestein die Anforderungen und Beanspruchungen entsprechend gross sind.Another known lattice girder with centrally arranged stiffening elements in the form of kinked round bars, which are each connected in a central node, is described in DE-OS 30 14 402. By using round bars for the reinforcement, spray shadows can be avoided when concreting. The central arrangement of the central connection area of each stiffening element within the cross section of the belt profiles contributes to the high load-bearing capacity of this lattice girder. The construction is relatively complex, so that such lattice girders are expediently only to be used where the requirements and stresses are correspondingly high due to high rock pressure, rubble or loose rock.

Für verhältnismässig standfeste Gebirge, z. B. für Ausbaustrecken in Sandstein oder Lehm, genügt ein leichterer Gitterträger, der einfacher im Aufbau ist und entsprechend billiger konstruiert werden kann. Ein solcher Gitterträger sollte aber trotzdem eine ausreichend hohe Formsteifigkeit bzw. Querschnittsstabilität sowohl gegenüber Biegebeanspruchungen als auch gegenüber Beanspruchungen auf Knickung und Torsion aufweisen. Er sollte mindestens teilweise tragend eingesetzt werden können bis zum Zeitpunkt, wo er einbetoniert wird und seine Gurtstäbe die Bewehrung des endgültigen Stahlbetonausbaus bilden. Die Ausfachung muss so gestaltet sein, dass keine Spritzschatten beim Betonieren entstehen.For relatively stable mountains, e.g. B. for expansion lines in sandstone or clay, a lighter lattice girder is sufficient, which is simpler in construction and can be constructed accordingly cheaper. However, such a lattice girder should nevertheless have a sufficiently high level of dimensional stability or cross-sectional stability both against bending stresses and against stresses due to buckling and torsion. It should be possible to use it at least partially load-bearing until it is concreted in and its belt bars form the reinforcement of the final reinforced concrete structure. The infill must be designed so that there are no splash shadows when concreting.

Aufgabe der Erfindung ist es nun, einen Gitterträger zu schaffen, der diese Anforderungen erfüllt. Erfindungsgemäss erfolgt dies durch die in der Kennzeichnung des Patentanspruches 1 definierten Merkmale.The object of the invention is now to provide a lattice girder that meets these requirements. According to the invention, this is done by the features defined in the characterizing part of claim 1.

Nachfolgend wird anhand der Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigen:

  • Fig. 1 eine perspektivische Ansicht eines Gitterträgersegmentes, vom Stoss aus gesehen,
  • Fig. 2 eine Draufsicht auf das Gitterträgersegment gemäss Figur 1,
  • Fig. 3 eine Stirnansicht durch das Gitterträgersegment gemäss Figur 1,
  • Fig. 4 eine Draufsicht auf ein Versteifungselement,
  • Fig. 5 eine Seitenansicht des Gitterträgersegmentes gemäss Figur 1,
  • Fig. 6 eine Seitenansicht auf die Stossstellen zweier Gitterträgersegmente, die mittels Verbindungselementen miteinander zusammengeschraubt sind, und
  • Fig. 7 einen Schnitt nach der Linie VI - VI gemäss Figur 1 durch die Stossstelle der Gitterträgersegmente.
An exemplary embodiment of the invention is explained in more detail below with reference to the drawings. Show it:
  • 1 is a perspective view of a lattice girder segment, seen from the joint,
  • 2 shows a plan view of the lattice girder segment according to FIG. 1,
  • 3 shows an end view through the lattice girder segment according to FIG. 1,
  • 4 is a plan view of a stiffening element,
  • 5 shows a side view of the lattice girder segment according to FIG. 1,
  • Fig. 6 is a side view of the joints of two lattice girder segments, which are screwed together by means of connecting elements, and
  • 7 shows a section along the line VI-VI according to FIG. 1 through the abutment of the lattice girder segments.

Der in den Figuren dargestellte Gitterträger weist drei parallele Gurtstäbe 1, 2, 3 auf, die im Normalschnitt ein Dreieck bilden. Die beiden dem Gebirge zugekehrten Obergurte 1, 2, die bei Belastung auf Zug beansprucht werden, weisen einen kleineren Querschnitt auf als der Untergurt 3, der auf Druck beansprucht wird. Es wäre aber auch möglich, die Querschnitte aller Gurtstäbe gleich auszubilden. Die Gurtstäbe 1, 2, 3 sind mittels innerer Versteifungselemente 4 räumlich zueinander fixiert.The lattice girder shown in the figures has three parallel belt bars 1, 2, 3, which are normal cut to form a triangle. The two upper chords 1, 2 facing the mountains, which are subjected to tensile stress when loaded, have a smaller cross section than the lower chord 3, which is stressed. However, it would also be possible to design the cross sections of all of the belt rods in the same way. The belt bars 1, 2, 3 are spatially fixed to one another by means of inner stiffening elements 4.

Jedes Versteifungselement 4-ist einstückig aus einem Rundstahlstab hergestellt. Wie aus der Figur 4 hervorgeht, wird der Rundstahlstab zuerst flach, d. h. in der Eben, gebogen, derart, dass zwei gleichseitige Dreiecke 5, 6 entstehen, deren Spitzen 7, 8 über zwei kurze parallele Stabstücke 9 miteinander verbunden sind. Die beiden Enden 10 des Stabes werden zusammengestossen und dann stumpf zusammengeschweisst. Dieses zweidimensionale Gebilde wird anschliessend in einer weiteren Arbeitsoperation zum dreidimensionalen Versteifungselement 4 verformt, wobei an den Spitzen 7, 8 zwei Knicke entstehen.Each stiffening element 4 is made in one piece from a round steel rod. As can be seen from Figure 4, the round steel rod is first flat, i. H. in the plane, curved, in such a way that two equilateral triangles 5, 6 are formed, the tips 7, 8 of which are connected to one another via two short parallel rod pieces 9. The two ends 10 of the rod are pushed together and then butt welded together. This two-dimensional structure is then deformed in a further work operation to form the three-dimensional stiffening element 4, two kinks occurring at the tips 7, 8.

Die Ecken 7, 11, 12 bzw. 8, 13, 14 der Dreiecke 5, 6 werden nun innen an den Gurtstäben 1, 2, 3 angeschweisst, wobei die Spitzen 7, 8 mit dem Verbindungsstück 9 am inneren Gurtstab 3, befestigt und die beiden Basisecken 11, 12 bzw. 13, 14 an den äusseren Gurtstäben 1, 2 angeschweisst werden.The corners 7, 11, 12 and 8, 13, 14 of the triangles 5, 6 are now on the inside of the belt bars 1, 2, 3 welds, the tips 7, 8 being fastened with the connecting piece 9 to the inner belt rod 3, and the two base corners 11, 12 and 13, 14 being welded to the outer belt rods 1, 2, respectively.

Die beiden Dreiecke 5, 6 des Aussteifungselementes 4 sind schräg zu den Gurtstäben 1, 2, 3 angeordnet und schliessen mit diesen einen spitzen Winkel a ein. Das Versteifungselement 4 ist symmetrisch ausgebildet in bezug auf eine zu den Gurtstäben 1, 2, 3 senkrechte Mittenebene 15.The two triangles 5, 6 of the stiffening element 4 are arranged obliquely to the belt bars 1, 2, 3 and enclose an acute angle a with them. The stiffening element 4 is symmetrical with respect to a central plane 15 perpendicular to the belt rods 1, 2, 3.

Die vorstehend beschriebene Konstruktion des Gitterträgers weist folgende Vorteile auf:

  • - Das Rundmaterial ist einfach erhältlich und verursacht keine Spritzschatten beim Ausbetonieren. Dies ist wichtig, da der Gitterträger voll im Beton eingegossen wird und als Bewehrung dient.
  • - Die Konstruktion ist sehr stabil trotz sehr geringen Materialaufwandes. Die einzelnen Fachwerk-Aussteifungsstrecken sind sehr kurz, da das Aussteifungselement innen an den Gurtstäben angeschweisst wird.
  • - Da das Versteifungselement einstückig ausgebildet ist, erfolgt dessen Verbindung mit den Gurtstäben an relativ wenigen Schweissstellen, was eine entsprechend geringe Versprödung des Material durch das Schweissen bewirkt.
  • - Infolge der einstückigen Ausbildung ist es auch nicht notwendig, einzelne Ausfachungsstäbe vorzusehen, die einzeln verschweisst werden und bei starker Belastung leicht ausbrechen können.
  • - Die Enden des Versteifungselementes sind gegeneinandergestossen und stumpf verschweisst, so dass auch hier kein überschüssiges Material durch Ueberlappungen entsteht.
The construction of the lattice girder described above has the following advantages:
  • - The round material is easily available and does not cause splash shadows when concreting. This is important because the lattice girder is fully cast in the concrete and serves as reinforcement.
  • - The construction is very stable despite very little material. The individual half-timbered Bracing distances are very short because the bracing element is welded to the inside of the belt bars.
  • - Since the stiffening element is formed in one piece, its connection to the belt rods takes place at relatively few welding points, which causes a correspondingly low embrittlement of the material by the welding.
  • - As a result of the one-piece design, it is also not necessary to provide individual infill bars, which are welded individually and can easily break out under heavy loads.
  • - The ends of the stiffening element are butted against one another and butt welded, so that here too there is no excess material due to overlaps.

Zum Verbinden zweier Gitterträgersegmente werden diese an den Stössen miteinander verbunden. An den Enden jedes Gitterträgersegmentes werden zwei Winkeleisen 16 mit Bohrungen angeschweisst. Die Segmente können sodann an den Enden zusammengestossen und zusammengeschraubt werden.To connect two lattice girder segments, they are joined together at the joints. At the ends of each lattice girder segment, two angle irons 16 are used Welded holes. The segments can then be pushed together at the ends and screwed together.

Um einen Längenausgleich zu erzielen, können anstatt der Winkeleisen 16 zwei Platten 18 mit Bohrungen 19 beidseitig am Gitterträgersegment angesschweisst werden. Ein V-förmig gebogenes Verbindungselement 20 mit zwei Bohrungsreihen 21 wird von unten auf die Enden zweier benachbarter Gitterträgersegmente aufgeschoben und mit den Platten 18 verschraubt, wie dies aus der Figur 6 hervorgeht.In order to achieve a length compensation, instead of the angle iron 16, two plates 18 with bores 19 can be welded onto the lattice girder segment on both sides. A V-shaped connecting element 20 with two rows of holes 21 is pushed from below onto the ends of two adjacent lattice girder segments and screwed to the plates 18, as can be seen in FIG. 6.

Zur rationellen Herstellung der Gitterträgersegmente empfiehlt es sich, die Versteifungselemente in speziellen Lehre vorzufertigen. Sodann werden die oberen und unteren Gurtstäbe mit dem gewünschten Krümmungsradius vorgebogen und ebenfalls in eine Lehre gelegt, um sie räumlich zueinander zu fixieren. Nun werden die Versteifungselemente 4, 19 im Abstand voneinander zwischen die Gurtstäbe eingelegt und manuell oder mit einer Schweissmaschine verschweisst. Anschliessend werden an den Enden die Winkeleisen oder die Endplatten befestigt. Die fertigen Gitterträgersegmente werden erst an Ort und Stelle miteinander definitiv verbunden, um den Ausbaurahmen zu bilden.For the rational manufacture of the lattice girder segments, it is advisable to prefabricate the stiffening elements in a special teaching. Then the upper and lower belt rods are pre-bent with the desired radius of curvature and also placed in a jig to fix them spatially to each other. Now the stiffening elements 4, 19 are inserted at a distance from one another between the belt bars and welded manually or with a welding machine. Then the angle iron or the end plates are attached to the ends. The ferti Lattice girder segments are only finally connected to one another on site to form the expansion frame.

Claims (9)

1. Gitterträger für den Untertag-Strecken- und Schachtausbau, wobei drei parallele, im Querschnitt ein Dreieck bildende Gurtstäbe mittels innerer Versteifungselemente räumlich zueinander fixiert sind, dadurch gekennzeichnet, dass jedes Versteifungselement (4) einstückig aus einem mehrfach gebogenen Profilstab besteht, und dass.das Versteifungselement (4) von innen an die Gurtstäbe (1, 2, 3) angeschweisst ist.1. Lattice girder for underground track and shaft expansion, whereby three parallel belt bars, which form a triangle in cross section, are spatially fixed to one another by means of inner stiffening elements, characterized in that each stiffening element (4) consists in one piece of a multi-curved profile bar, and that. the stiffening element (4) is welded to the belt rods (1, 2, 3) from the inside. 2. Gitterträger nach Anspruch 1, dadurch gekennzeichnet, dass die Enden des Profilstabes gegeneinander gestossen und stumpf miteinander verschweisst sind.2. Lattice girder according to claim 1, characterized in that the ends of the profile bar are butted against each other and butt welded together. 3. Gitterträger nach Anspruch 1, dadurch gekennzeichnet, dass das Versteifungselement (4) aus zwei Dreiecken (5, 6) besteht, die geneigt zueinander angeordnet sind, dass jedes Dreieck (5, 6) schräg zu den Gurtstäben (1, 2, 3) verläuft, und dass die Ecken der Dreiecke (5, 6) an den Gurtstäben angeschweisst sind.3. Lattice girder according to claim 1, characterized in that the stiffening element (4) consists of two triangles (5, 6) which are arranged inclined to one another, that each triangle (5, 6) obliquely to the belt bars (1, 2, 3rd ) runs, and that the corners of the triangles (5, 6) are welded to the belt bars. 4. Gitterträger nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Spitzen (7, 8) der Dreiecke (5, 6) über ein Verbindungsstück (9) miteinander verbunden sind.4. Lattice girder according to claim 3, characterized in that the two tips (7, 8) of the triangles (5, 6) are connected to one another via a connecting piece (9). 5. Gitterträger nach Anspruch 4, dadurch gekennzeichnet, dass die Spitzen (7, 8) der Dreiecke (5, 6) am inneren Gurtstab (3) und die Basisecken (11, 12 bzw. 13, 14) an den äusseren Gurtstäben (1, 2) befestigt sind.5. Lattice girder according to claim 4, characterized in that the tips (7, 8) of the triangles (5, 6) on the inner belt rod (3) and the base corners (11, 12 or 13, 14) on the outer belt rods (1 , 2) are attached. 6. Gitterträger nach Anspruch 1, dadurch gekennzeichnet, dass das Versteifungselement (4) in bezug auf eine senkrecht zu den Gurtstäben (1, 2, 3) verlaufende Mittenebene (15) symmetrisch ist.6. Lattice girder according to claim 1, characterized in that the stiffening element (4) with respect to a perpendicular to the belt bars (1, 2, 3) extending center plane (15) is symmetrical. 7. Gitterträger nach Anspruch 1, dadurch gekennzeichnet, dass er aus Gitterträgersegmenten zusammengebaut ist, deren Stossenden je zwei an den Gurtstäben seitlich angeschweisste Winkeleisen (16) aufweisen, und dass je zwei benachbarte Winkeleisen (19) miteinander verschraubt sind.7. Lattice girder according to claim 1, characterized in that it is assembled from lattice girder segments, the butt ends of which each have two angle irons (16) welded to the side of the belt rods, and that two adjacent angle irons (19) are screwed together. 8. Gitterträger nach Anspruch 1, dadurch gekennzeichnet, dass er aus Gitterträgersegmenten zusammengebaut ist, deren Stossenden je zwei an den Gurtstäben seitlich angeschweisste Lochplatten (18) aufweisen, und dass ein V-förmiges Verbindungselement (20) im Stossbereich auf die Gurtstäbe (1, 2, 3) aufgeschoben ist und mit den Lochplatten (18) verschraubt ist.8. Lattice girder according to claim 1, characterized in that it is assembled from lattice girder segments, the butt ends of which each have two perforated plates (18) welded to the side of the belt bars, and that a V-shaped connecting element (20) in the joint area on the belt bars (1, 2, 3) is pushed on and screwed to the perforated plates (18). 9. Gitterträger nach Anspruch 8, dadurch gekennzeichnet, dass das Verbindungselement zwei Lochreihen (21) aufweist, die wahlweise für die Verschraubung verwendbar sind.9. Lattice girder according to claim 8, characterized in that the connecting element has two rows of holes (21) which can optionally be used for the screw connection.
EP82810334A 1981-09-01 1982-08-09 Grid-like girder for the support of underground galleries and shafts Expired EP0073733B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82810334T ATE13577T1 (en) 1981-09-01 1982-08-09 LATTICE CARRIER FOR UNDERGROUND RAIL AND SHAFT EXTENSION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818125375U DE8125375U1 (en) 1981-09-01 1981-09-01 Lattice girder for the underground track and shaft expansion
DE8125375U 1981-09-01

Publications (2)

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EP0073733A1 true EP0073733A1 (en) 1983-03-09
EP0073733B1 EP0073733B1 (en) 1985-05-29

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EP82810334A Expired EP0073733B1 (en) 1981-09-01 1982-08-09 Grid-like girder for the support of underground galleries and shafts

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EP (1) EP0073733B1 (en)
AT (1) ATE13577T1 (en)
DE (2) DE8125375U1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604743A1 (en) * 1986-10-03 1988-04-08 Pantex Stahl Ag CONNECTING ELEMENT FOR LATTICE SUPPORT OF UNDERGROUND WORKS, AND THREE-MEMBERED SUPPORT PROVIDED WITH SUCH ELEMENTS
EP0302243A1 (en) * 1987-07-09 1989-02-08 Tunnel Ausbau Technik GmbH Lining arch for tunnels
US5054964A (en) * 1989-02-01 1991-10-08 Pantex-Stahl Ag Stiffening element for a lattice girder
GB2287729A (en) * 1994-07-07 1995-09-27 Tunnel Ausbau Technik Gmbh Connecting element and lattice girder interconnected with a plurality thereof
DE19616444A1 (en) * 1995-07-29 1997-02-27 Seiz Rudolf Lattice beam with bars and bracing, especially for tunnelling
DE19711627A1 (en) * 1996-12-02 1997-08-07 Seiz Rudolf Lattice girder frame for tunnel development
EP1505253A2 (en) * 2003-08-07 2005-02-09 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Beam with parallel belt, in particular for the extension of underground galleries and tunnels
EP1921251A1 (en) 2006-11-08 2008-05-14 Tunnel-Ausbau-Technik GmbH Device for mutual connection of the long ends of at least two formwork girders used in tunnel construction
EP2372082A3 (en) * 2010-03-31 2015-07-29 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Formwork girder
DE102014010212B3 (en) * 2014-07-10 2015-12-24 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Girder connection
CN113503173A (en) * 2021-07-12 2021-10-15 内蒙古工业大学 Mine roadway support steel arch frame and mounting method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19835557B4 (en) * 1998-08-06 2008-05-29 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Stackable lattice girder removal frame and stiffeners for this frame
DE102012108479A1 (en) * 2012-09-11 2014-03-13 Bochumer Eisenhütte Heintzmann GmbH & Co. KG girder
DE102012108471B3 (en) 2012-09-11 2013-09-26 Bochumer Eisenhütte Heintzmann GmbH & Co. KG girder
DE102014103477A1 (en) 2014-03-14 2015-09-17 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Removal system for underground tunnels or lines, expansion unit and arch segment

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US2140313A (en) * 1937-10-28 1938-12-13 Dellenbarger Metal stud and joist
FR1098003A (en) * 1948-07-01 1955-07-15 Ridge
GB816059A (en) * 1955-05-18 1959-07-08 Fritz Grebner Lattice girders and structural steel lattice framework
AT253183B (en) * 1964-07-24 1967-03-28 Avi Alpenlaendische Vered Lattice girder without lower chords
DE1990316U (en) * 1968-08-01 August Thyssen Hütte Aktiengesellschaft 4100 Duisburg-Hamborn Supports, especially lattice supports for underground work
DE6807538U (en) * 1967-11-22 1969-05-06 S H Heywood & Company Ltd COMPOSITE CARRIER
DE1608527B1 (en) * 1964-10-13 1970-05-21 Aug Kloenne Fa Underground expansion
DE1953348A1 (en) * 1969-10-23 1971-05-06 Bayer Ag Process for the preparation of modified anionic emulsion polymers
CH547410A (en) * 1972-11-15 1974-03-29 Baustoff & Handels Ag CEILING BEAM.
GB1479435A (en) * 1973-06-13 1977-07-13 Rheinische Filigranbau Gmbh Co Braced girders for steel-reinforced concrete construction
DE8020051U1 (en) * 1980-07-25 1980-11-06 Filigranbau Stefan Keller Kg, 8192 Geretsried SPACIOUS GRID RACK

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AT362739B (en) * 1978-12-27 1981-06-10 Evg Entwicklung Verwert Ges REMOVAL FRAME FOR TUBES, TUNNEL OR THE LIKE.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1990316U (en) * 1968-08-01 August Thyssen Hütte Aktiengesellschaft 4100 Duisburg-Hamborn Supports, especially lattice supports for underground work
US2140313A (en) * 1937-10-28 1938-12-13 Dellenbarger Metal stud and joist
FR1098003A (en) * 1948-07-01 1955-07-15 Ridge
GB816059A (en) * 1955-05-18 1959-07-08 Fritz Grebner Lattice girders and structural steel lattice framework
AT253183B (en) * 1964-07-24 1967-03-28 Avi Alpenlaendische Vered Lattice girder without lower chords
DE1608527B1 (en) * 1964-10-13 1970-05-21 Aug Kloenne Fa Underground expansion
DE6807538U (en) * 1967-11-22 1969-05-06 S H Heywood & Company Ltd COMPOSITE CARRIER
DE1953348A1 (en) * 1969-10-23 1971-05-06 Bayer Ag Process for the preparation of modified anionic emulsion polymers
CH547410A (en) * 1972-11-15 1974-03-29 Baustoff & Handels Ag CEILING BEAM.
GB1479435A (en) * 1973-06-13 1977-07-13 Rheinische Filigranbau Gmbh Co Braced girders for steel-reinforced concrete construction
DE8020051U1 (en) * 1980-07-25 1980-11-06 Filigranbau Stefan Keller Kg, 8192 Geretsried SPACIOUS GRID RACK

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604743A1 (en) * 1986-10-03 1988-04-08 Pantex Stahl Ag CONNECTING ELEMENT FOR LATTICE SUPPORT OF UNDERGROUND WORKS, AND THREE-MEMBERED SUPPORT PROVIDED WITH SUCH ELEMENTS
GB2195677B (en) * 1986-10-03 1991-02-06 Pantex Stahl Ag Improved lattice girder
EP0302243A1 (en) * 1987-07-09 1989-02-08 Tunnel Ausbau Technik GmbH Lining arch for tunnels
US5054964A (en) * 1989-02-01 1991-10-08 Pantex-Stahl Ag Stiffening element for a lattice girder
GB2287729B (en) * 1994-07-07 1997-07-23 Tunnel Ausbau Technik Gmbh Connecting element and lattice girder interconnected with a plurality of said elements
GB2287729A (en) * 1994-07-07 1995-09-27 Tunnel Ausbau Technik Gmbh Connecting element and lattice girder interconnected with a plurality thereof
DE19616444A1 (en) * 1995-07-29 1997-02-27 Seiz Rudolf Lattice beam with bars and bracing, especially for tunnelling
DE19616444C2 (en) * 1995-07-29 1998-02-12 Seiz Rudolf Lattice girders for track and tunnel construction as well as stiffening elements for the manufacture of a lattice girder
DE19711627A1 (en) * 1996-12-02 1997-08-07 Seiz Rudolf Lattice girder frame for tunnel development
EP1505253A2 (en) * 2003-08-07 2005-02-09 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Beam with parallel belt, in particular for the extension of underground galleries and tunnels
EP1505253A3 (en) * 2003-08-07 2005-04-20 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Beam with parallel belt, in particular for the extension of underground galleries and tunnels
EP1921251A1 (en) 2006-11-08 2008-05-14 Tunnel-Ausbau-Technik GmbH Device for mutual connection of the long ends of at least two formwork girders used in tunnel construction
EP2372082A3 (en) * 2010-03-31 2015-07-29 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Formwork girder
DE102014010212B3 (en) * 2014-07-10 2015-12-24 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Girder connection
CN113503173A (en) * 2021-07-12 2021-10-15 内蒙古工业大学 Mine roadway support steel arch frame and mounting method thereof

Also Published As

Publication number Publication date
DE3263900D1 (en) 1985-07-04
DE8125375U1 (en) 1982-01-21
EP0073733B1 (en) 1985-05-29
ATE13577T1 (en) 1985-06-15

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