EP2203597B1 - Formwork configuration for the cantilever construction of bridges - Google Patents
Formwork configuration for the cantilever construction of bridges Download PDFInfo
- Publication number
- EP2203597B1 EP2203597B1 EP08804531.5A EP08804531A EP2203597B1 EP 2203597 B1 EP2203597 B1 EP 2203597B1 EP 08804531 A EP08804531 A EP 08804531A EP 2203597 B1 EP2203597 B1 EP 2203597B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formwork
- bearing
- carrier
- formwork arrangement
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009415 formwork Methods 0.000 title claims description 59
- 238000010276 construction Methods 0.000 title claims description 6
- 229920003023 plastic Polymers 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000969 carrier Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Definitions
- the invention relates to a formwork arrangement for the cantilever construction of bridges.
- the storage of all movable elements usually takes place by means of rollers.
- the formwork arrangement can be advanced to establish the reinforcements for the next section.
- the rails or beams on which the formwork arrangement is mounted can be extended to the last created building section.
- the DE 28 48 536 A1 relates to a similar arrangement in which sliding bearings can be provided. Other formwork arrangements from this area go from the EP 0 004 251 A1 . DE 26 60 087 B1 and US 3,989,218 out.
- the invention has for its object to provide a formwork arrangement for the cantilever construction of bridges with an extended application and / or improved security.
- this has at least one largely horizontal slide bearing, which has at least one bearing part made of plastic, in particular polyethylene.
- plain bearings offers the following advantages over the previously used roller bearings.
- roller bearings even at low bridge radii there is the risk that the rollers get out of the rails intended for them or "on" the support sections which support them and, for example, run up / open on flanges or the like. Taking into account the considerable weight of such formwork arrangements, which may be heavy, for example, several tons. There is a significant security problem to the effect that the formwork arrangement falls back after such a ride a roller bearing in the actually provided "bearing rail".
- roller bearings are on structures with gradients problematic because for advancing the formwork arrangement usually oscillating cylinders are provided, which are supported in a first operating state on a support or a rail, which is attached to an already created building section, and advance the formwork arrangement. In a second operating state, the formwork arrangement remains in place and the cylinders are retracted so that the supports are retightened. In this situation, the usually tons-heavy formwork arrangement is unsecured and can move forward on a gradient due to the roller bearings described, which represents a significant security risk.
- the plastic bearing part according to the invention significantly reduces the risk of the bearing moving out of its rail or from the support provided for storage. Furthermore, a plastic bearing part has proven to be advantageous in that it is self-locking up to a certain gradient. Accordingly, even with structures with gradient, the formwork arrangement safely stay in place and the support, as described, be tightened. In other words, the bearing forces are calculable and can be taken into account for a defined behavior of the entire formwork arrangement during the second operating state described above. Finally, the plastic sliding bearing according to the invention offers a comparison with roller bearings improved, namely area force application.
- the plastic bearing part is arranged according to the invention on a movable part of the formwork arrangement.
- the immovable part of the formwork arrangement for example, one or more Rails or carrier may have a considerable longitudinal extent to ensure a certain range of motion for the formwork arrangement. If you were to provide it plastic bearing parts, they would also extend over a considerable area. In that regard, for reasons of efficiency, it is currently preferred to provide the plastic bearing parts on the comparatively short moving part of the formwork arrangement or only on individual sections thereof.
- a bearing part made of metal, preferably steel proved to be favorable as a further bearing part that cooperates with the plastic bearing part.
- the sliding bearing is self-locking up to a gradient of about 5%, preferably about 6% and more preferably up to 10%. As a result, a wide range of applications can be covered with a particularly secure approach.
- the attachment of the plastic bearing part can be particularly easily and efficiently done in a magnetic manner.
- the plastic bearing part can be provided in an advantageous manner as part of a sliding bearing between any movable components or sections of a formwork arrangement for cantilever construction, in particular of bridges.
- the first attempts were particularly good experiences made when such a plain bearing between an inner shell carriage and / or a side mold on the one hand and a fixed portion of the formwork arrangement on the other hand was provided.
- the formwork assembly 10 which may have an extension of a few meters, for example, of five meters, in the cantilever direction, supported on an already created section 30 of a bridge.
- the already created bridge section 30 can cantilever freely, and the formwork arrangement 10 can be provided to create a further, in turn cantilevered section.
- To support the formwork arrangement 10 are in the case already shown four bridge section 30 Support 32 mounted, which essentially serve the storage and support of the formwork arrangement 10.
- the carriers 32 essentially act as rails on which the formwork arrangement 10, as described in more detail below, is displaceably mounted.
- a state is shown in which the formwork arrangement 10, of which any formwork is not shown, has been advanced out of the last created section and is located in the situation shown immediately before the last created section.
- the support of the formwork arrangement 10 on the supports 32 in the case shown by sliding bearings 34, which cooperate substantially with the upper surfaces of the support 32.
- the forward movement is accomplished in the case shown by two hydraulic cylinders 36 which oscillate and alternately, supporting themselves on supports 38, advance the formwork assembly 10 or, while the formwork assembly 10 remains stationary, the supports 38 tighten.
- abutments 40 are provided which can engage, for example, protruding flanges of the supports 32 in order to support the weight of the overhanging formwork arrangement.
- anchor rods may be provided for this purpose.
- the formwork arrangement comprises an upper support arrangement 12, which consists of transverse 20 and longitudinal members 42. About a plurality of rods 16 is suspended from the upper support assembly 12, a lower support assembly 14, which also has transverse 20 and longitudinal members 42. Standardized stages may be attached to the upper 12 and / or lower carrier assembly 14, inter alia because of the possibilities for attaching standard components described below.
- all cross member 20 are designed as a hollow profile carrier, as described below with reference to the Fig. 2 explained in more detail.
- Fig. 1 is complementary to recognize that between the carriers 20, in particular in the case of the upper carrier assembly 12 by additional, for example, diagonally oriented struts 44 stabilization of the carrier assembly can be carried out.
- diagonally downwardly extending supports 46 may be provided to form the upper formwork assembly 12 with truss-like sections. It also follows that the upper support assembly, substantially in the form of the cross member 20, in the vertical direction from the surface of the bridge portion 30 is spaced so that the space located under the upper support assembly advantageously for the required work, such as the introduction of Reinforcements, is kept free. The space available for this purpose is further increased by the fact that the mentioned diagonal struts 44 are arranged in comparatively outer regions, so that the intermediate inner region can be used in a favorable manner for the delivery of reinforcement and the like.
- the suspension of the lower support assembly 14 is carried out in the example shown by a plurality of rods 16, in which the lower support assembly 14 is mounted in a special manner, which will be described in more detail below.
- the respective cross member 20 of the formwork arrangement of Fig. 1 described in more detail.
- the respective carrier 20 seen in cross section, as at the front end ( Fig. 2 ) recognizable, a closed, box-like cross section.
- This is formed in the example shown by different sections, in the case shown by two largely horizontally oriented sections 22.1 and two in the representation largely vertically oriented web sections 22.2.
- Reference Fig. 2 is schematic too recognize that the horizontal sections 22.1 are slightly thicker than the web sections 22.2.
- the grid of fasteners in the form of apertures 26 extending substantially the entire length of the support 20 and in the longitudinal direction thereof.
- a comparatively narrow grid of fastening devices in the form of openings is provided on all laterally projecting flanges 24 of the carrier 20.
- the individual openings of this grid for example, have a distance of about 10 cm and the attachment of "truss components" as the diagonal supports 44 and / or the diagonal supports 46 are used.
- the fastening means 26.2 of a second grid located in the area of the closed box-like area (seen in cross-section) have a greater spacing and a larger diameter of the openings.
- the distance may be, for example, 20 cm and the implementation of bars 16 (see.
- Fig. 1 serve for the suspension of the lower support assembly 14.
- the profile can of the carrier 20 are described as I-profile with double central web, so that in the region of the central web (seen in cross section) closed hollow profile is formed.
- the horizontal sections 22.1 and the web sections 22.2 of the carrier 20 and the end plates 48 may be welded together, for example.
- the in Fig. 2 shown carrier has a height dimension (in the direction of the web portions 22.2) of about 40 cm.
- a drive unit which essentially comprises a sliding bearing 34, a hydraulic cylinder 36 and a support 38.
- the operation of the drive unit has been described above with reference to Fig. 1 explained.
- the slide bearing 34 in the exemplary embodiment shown has two skids 52, which are slidably provided on the upper sides of the carriers 32 attached to the completed bridge section 30.
- the runners 52 have lateral boundaries 54 largely in the form of plates and plastic bearing parts 28.
- the plastic bearing parts 28 may be matched to the other bearing part, in the case shown the carrier 32, such that the storage is self-locking up to a certain slope.
- the plastic bearing parts can be interchangeable and / or magnetically attached to the runners 52.
- drive unit is further provided a substantially in the longitudinal direction, ie in the free-trimmer direction extending axis 56 to which the upper support assembly may be rotatably mounted about a substantially horizontal axis.
- Fig. 4 shows a detail of in an overall view in Fig. 1 to be recognized hinged suspension of the lower support assembly 14 to the upper support assembly 12 (see. Fig. 1 ).
- a longitudinal member 42 and an adjoining housing 18 can be seen.
- the housing is attached to a cross member 20.
- the articulated suspension More specifically, it is attached to a rod 16, at its lower end, which may have a thread for this purpose, for example by means of a nut 58, a spherical cap 60 is attached.
- the spherical cap 60 has a spherical surface and cooperates in the embodiment shown with a ring-like cut counterpart 62 with a spherical inner surface 64.
- the section of the counterpart 62 is larger than the diameter of the rod 16, so that an inclination of the lower support assembly, in which the in Fig. 4 shown housing 18 is mounted to all axes is possible.
- the carrier arrangement can be adapted in a particularly flexible manner to inclined bridge geometries and other special applications.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Description
Die Erfindung betrifft eine Schalungsanordnung für den Freivorbau von Brücken.The invention relates to a formwork arrangement for the cantilever construction of bridges.
Beim Freivorbau von Brücken aus Beton müssen diejenigen Schalungen, zwischen welche die notwendigen Bewehrungen eingebracht werden und der das nächste Teilstück bildende Beton eingegossen wird, über den bereits erstellten und ausreichend ausgehärteten Abschnitt der Brücke abgestützt werden. Zu diesem Zweck werden am Ende des bereits erstellten Brückenabschnitts im Wesentlichen Träger oder Schienen angebracht, in denen eine obere Trägeranordnung beweglich gelagert ist. Die obere Trägeranordnung kann in der Freivorbaurichtung und/oder über den seitlichen Rand des bereits erstellten Brückenabschnitts auskragen. An Abschnitten der oberen Trägeranordnung können Schalungen für den oberen Bereich der Brücke angebracht sein. Ferner kann an der oberen Trägeranordnung eine untere Trägeranordnung abgehängt sein, die zur gegebenenfalls verschieblichen Lagerung weiterer Schalungen für untere Bereiche der Brücke und/oder Innenschalungen im Fall eines Hohlkastenprofils der Brücke vorgesehen sind. Die Lagerung sämtlicher verschiebbarer Elemente erfolgt üblicherweise mittels Rollen. Nachdem ein neuer Bauwerksabschnitt erstellt wurde, kann die Schalungsanordnung vorangeschoben werden, um die Bewehrungen für den nächsten Abschnitt einzurichten. In diesem Zusammenhand können die Schienen oder Träger, auf denen die Schalungsanordnung gelagert ist, auf den zuletzt erstellten Bauwerksabschnitt verlängert werden.In the case of cantilevered concrete bridges, those formwork between which the necessary reinforcements are inserted and the concrete forming the next section shall be poured over the already established and sufficiently hardened section of the bridge must be supported. For this purpose, essentially carriers or rails are mounted at the end of the bridge section already created, in which an upper support assembly is movably mounted. The upper carrier arrangement can protrude in the free-living direction and / or over the lateral edge of the already created bridge section. Formwork for the upper area of the bridge may be attached to portions of the upper beam assembly. Further, a lower support assembly may be suspended from the upper support assembly, which are provided for optionally displaceable storage of other formwork for lower portions of the bridge and / or inner formwork in the case of a hollow box section of the bridge. The storage of all movable elements usually takes place by means of rollers. After a new building section has been created, the formwork arrangement can be advanced to establish the reinforcements for the next section. In this context, the rails or beams on which the formwork arrangement is mounted, can be extended to the last created building section.
Eine Schalungsanordnung für den Freivorbau von Brücken, bei der Rollenlagerungen vorgesehen sind und eine Schalung unabhängig von einer äußeren Schalung beweglich ist, ist aus der
Die
Der Erfindung liegt die Aufgabe zugrunde, eine Schalungsanordnung für den Freivorbau von Brücken mit einem erweiterten Einsatzgebiet und/oder einer verbesserten Sicherheit zu schaffen.The invention has for its object to provide a formwork arrangement for the cantilever construction of bridges with an extended application and / or improved security.
Die Lösung dieser Aufgabe erfolgt durch die im Anspruch 1 beschriebene Schalungsanordnung.The solution to this problem is achieved by the formwork arrangement described in claim 1.
Demzufolge weist diese zumindest ein weitgehend horizontales Gleitlager auf, das zumindest ein Lagerteil aus Kunststoff, insbesondere Polyethylen, besitzt. Die Verwendung von Gleitlagern bietet gegenüber den bislang verwendeten Rollenlagerungen folgende Vorteile. Bei Rollenlagern besteht bereits bei geringen Brückenradien die Gefahr, dass die Rollen aus den für sie vorgesehenen Schienen oder "auf" die sie lagernden Trägerabschnitte geraten und beispielsweise auf Flanschen oder dergleichen auflaufen/aufreiten. Unter Berücksichtigung des erheblichen Gewichts derartiger Schalungsanordnungen, die beispielsweise mehrere Zigtonnen schwer sein können. Besteht ein erhebliches Sicherheitsproblem dahingehend, dass die Schalungsanordnung nach einem derartigen Aufreiten einer Rollenlagerung in die eigentlich vorgesehene "Lagerschiene" zurückfällt. Ferner sind Rollenlagerungen bei Bauwerken mit Gefälle problematisch, weil zum Voranbewegen der Schalungsanordnung üblicherweise oszillierende Zylinder vorgesehen sind, die sich in einem ersten Betriebszustand an einem Träger oder einer Schiene abstützen, die an einem bereits erstellten Bauwerksabschnitt befestigt ist, und die Schalungsanordnung voranbewegen. In einem zweiten Betriebszustand bleibt die Schalungsanordnung an Ort und Stelle, und die Zylinder werden eingezogen, so dass die Abstützungen nachgezogen werden. In dieser Situation ist die üblicherweise tonnenschwere Schalungsanordnung ungesichert und kann sich bei Gefälle aufgrund der beschriebenen Rollenlagerungen voranbewegen, was ein erhebliches Sicherheitsrisiko darstellt.Accordingly, this has at least one largely horizontal slide bearing, which has at least one bearing part made of plastic, in particular polyethylene. The use of plain bearings offers the following advantages over the previously used roller bearings. In roller bearings, even at low bridge radii there is the risk that the rollers get out of the rails intended for them or "on" the support sections which support them and, for example, run up / open on flanges or the like. Taking into account the considerable weight of such formwork arrangements, which may be heavy, for example, several tons. There is a significant security problem to the effect that the formwork arrangement falls back after such a ride a roller bearing in the actually provided "bearing rail". Furthermore, roller bearings are on structures with gradients problematic because for advancing the formwork arrangement usually oscillating cylinders are provided, which are supported in a first operating state on a support or a rail, which is attached to an already created building section, and advance the formwork arrangement. In a second operating state, the formwork arrangement remains in place and the cylinders are retracted so that the supports are retightened. In this situation, the usually tons-heavy formwork arrangement is unsecured and can move forward on a gradient due to the roller bearings described, which represents a significant security risk.
Durch das erfindungsgemäße Kunststoff-Lagerteil besteht eine deutlich geringere Gefahr, dass sich die Lagerung aus ihrer Schiene oder von dem zur Lagerung vorgesehenen Träger bewegt. Ferner hat sich ein Kunststoff-Lagerteil dahingehend als vorteilhaft erwiesen, dass es bis zu einem gewisse Gefälle selbsthemmend ausgeführt ist. Dementsprechend kann auch bei Bauwerken mit Gefälle die Schalungsanordnung sicher an Ort und Stelle bleiben und die Abstützung, wie beschrieben, nachgezogen werden. Mit anderen Worten sind die Lagerkräfte berechenbar und können für ein definiertes Verhalten der gesamten Schalungsanordnung auch während des oben beschriebenen zweiten Betriebszustandes, berücksichtigt werden. Schließlich bietet das erfindungsgemäße KunststoffGleitlager eine gegenüber Rollenlagern verbesserte, nämlich flächige Krafteinleitung.The plastic bearing part according to the invention significantly reduces the risk of the bearing moving out of its rail or from the support provided for storage. Furthermore, a plastic bearing part has proven to be advantageous in that it is self-locking up to a certain gradient. Accordingly, even with structures with gradient, the formwork arrangement safely stay in place and the support, as described, be tightened. In other words, the bearing forces are calculable and can be taken into account for a defined behavior of the entire formwork arrangement during the second operating state described above. Finally, the plastic sliding bearing according to the invention offers a comparison with roller bearings improved, namely area force application.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Schalungsanordnung sind in den weiteren Ansprüchen beschrieben.Advantageous developments of the formwork arrangement according to the invention are described in the further claims.
Das Kunststoff-Lagerteil wird erfindungsgemäß an einem beweglichen Teil der Schalungsanordnung angeordnet. Hierbei ist zu berücksichtigen, dass der unbewegliche Teil der Schalungsanordnung, beispielsweise eine oder mehrere Schienen oder Träger eine erhebliche Längserstreckung aufweisen können, um einen gewissen Bewegungsbereich für die Schalungsanordnung zu gewährleisten. Wenn man daran Kunststoff-Lagerteile vorsehen würde, müssten sich diese ebenfalls über einen erheblichen Bereich erstrecken. Insoweit wird derzeit aus Gründen der Effizienz bevorzugt, die Kunststoff-Lagerteile an dem vergleichsweise kurzen beweglichen Teil der Schalungsanordnung oder lediglich an einzelnen Abschnitten desselben vorzusehen.The plastic bearing part is arranged according to the invention on a movable part of the formwork arrangement. It should be noted that the immovable part of the formwork arrangement, for example, one or more Rails or carrier may have a considerable longitudinal extent to ensure a certain range of motion for the formwork arrangement. If you were to provide it plastic bearing parts, they would also extend over a considerable area. In that regard, for reasons of efficiency, it is currently preferred to provide the plastic bearing parts on the comparatively short moving part of the formwork arrangement or only on individual sections thereof.
Für die Materialpaarung im Rahmen des Gleitlagers der erfindungsgemäßen Schalungsanordnung hat sich als weiteres Lagerteil, dass mit dem Kunststoff-Lagerteil zusammenwirkt, ein Lagerteil aus Metall, vorzugsweise Stahl als günstig erwiesen. Durch eine derartige Materialpaarung können besonders gut kalkulierbare, beispielsweise selbsthemmende Lagereigenschaften realisiert werden.For the material pairing in the context of the plain bearing of the formwork arrangement according to the invention, a bearing part made of metal, preferably steel proved to be favorable as a further bearing part that cooperates with the plastic bearing part. By such a combination of materials particularly well calculable, for example, self-locking storage properties can be realized.
Das Gleitlager ist bis zu einem Gefälle von etwa 5%, bevorzugt etwa 6% und weiter bevorzugt bis zu 10% selbsthemmend. Hierdurch kann eine große Bandbreite von Anwendungsfällen mit einer besonders sicheren Vorgehensweise abgedeckt werden.The sliding bearing is self-locking up to a gradient of about 5%, preferably about 6% and more preferably up to 10%. As a result, a wide range of applications can be covered with a particularly secure approach.
Unter Berücksichtigung des Aufwands, der sich aus einem Verschleiß der Lagerteile ergibt, erweist es sich ferner als vorteilhaft, zumindest ein Lagerteil, bevorzugt das Kunststoff-Lagerteil austauschbar vorzusehen.Taking into account the effort resulting from wear of the bearing parts, it also proves to be advantageous to provide at least one bearing part, preferably the plastic bearing part interchangeable.
Die Befestigung des Kunststoff-Lagerteils kann besonders einfach und effizient in magnetischer Art und Weise erfolgen.The attachment of the plastic bearing part can be particularly easily and efficiently done in a magnetic manner.
Ferner kann das Kunststoff-Lagerteil in vorteilhafter Weise als Teil eines Gleitlagers zwischen jeglichen beweglichen Komponenten oder Abschnitten einer Schalungsanordnung für den Freivorbau, insbesondere von Brücken vorgesehen sein. Bei ersten Versuchen wurden jedoch besonders gute Erfahrungen gemacht, wenn ein derartiges Gleitlager zwischen einem Innenschalwagen und/oder einer Seitenschalung einerseits und einem feststehenden Abschnitt der Schalungsanordnung andererseits vorgesehen war.Furthermore, the plastic bearing part can be provided in an advantageous manner as part of a sliding bearing between any movable components or sections of a formwork arrangement for cantilever construction, in particular of bridges. However, the first attempts were particularly good experiences made when such a plain bearing between an inner shell carriage and / or a side mold on the one hand and a fixed portion of the formwork arrangement on the other hand was provided.
Nachfolgend wird die Erfindung anhand beispielhaft in den Zeichnungen dargestellter Ausführungsformen näher erläutert.The invention will be explained in more detail with reference to exemplary embodiments shown in the drawings.
Es zeigen:
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen Schalungsanordnung;
- Fig. 2
- eine perspektivische Ansicht eines Hohlprofil-Trägers in der Schalungsanordnung von
Fig. 1 ; - Fig. 3
- eine perspektivische Unteransicht eines Gleitlagers in der Schalungsanordnung von
Fig. 1 ; und - Fig. 4
- eine perspektivische, teilweise geschnittene Ansicht eines Details aus
Fig. 1 .
- Fig. 1
- a perspective view of a formwork arrangement according to the invention;
- Fig. 2
- a perspective view of a hollow profile carrier in the formwork arrangement of
Fig. 1 ; - Fig. 3
- a perspective bottom view of a sliding bearing in the formwork arrangement of
Fig. 1 ; and - Fig. 4
- a perspective, partially sectioned view of a detail
Fig. 1 ,
Wie in
Die Abstützung der Schalungsanordnung 10 an den Trägern 32 erfolgt in dem gezeigten Fall durch Gleitlager 34, die im Wesentlichen mit den oberen Flächen der Träger 32 zusammenwirken. Die Vorwärtsbewegung wird bei dem gezeigten Fall durch zwei Hydraulikzylinder 36 bewerkstelligt, die oszillieren und abwechselnd, sich an Abstützungen 38 abstützend, die Schalungsanordnung 10 voranbewegen oder, während die Schalungsanordnung 10 ortsfest bleibt, die Abstützungen 38 nachziehen. Neben den beschriebenen Gleitlagern 34 sind Gegenlager 40 vorgesehen, die beispielsweise überstehende Flansche der Träger 32 untergreifen können, um das Gewicht der auskragenden Schalungsanordnung abzustützen. Ferner können für diesen Zweck Ankerstäbe vorgesehen sein.The support of the
Allgemein gesprochen weist die Schalungsanordnung eine obere Trägeranordnung 12 auf, die aus Quer- 20 und Längsträgern 42 besteht. Über mehrere Stäbe 16 ist von der oberen Trägeranordnung 12 eine untere Trägeranordnung 14 abgehängt, die ebenfalls Quer- 20 und Längsträger 42 aufweist. An der oberen 12 und/oder der unteren Trägeranordnung 14 können, unter anderem aufgrund der nachfolgend beschriebenen Möglichkeiten zur Anbringung von Standardbauteilen, standardisierte Bühnen angebracht sein. Bei dem gezeigten Beispiel sind sämtliche Querträger 20 als Hohlprofil-Träger ausgeführt, wie nachfolgend unter Bezugnahme auf die
Unter Bezugnahme auf
Dies gilt in ähnlicher Weise für die Raster von Befestigungseinrichtungen in Form von Öffnungen 26, die sich im Wesentlichen über die gesamte Länge des Trägers 20 und in Längsrichtung desselben erstrecken. In dem gezeigten Fall ist an sämtlichen seitlich überstehenden Flanschen 24 des Trägers 20 ein vergleichsweise enges Raster von Befestigungseinrichtungen in Form von Öffnungen vorgesehen. Die einzelnen Öffnungen dieses Rasters können beispielsweise einen Abstand von etwa 10 cm aufweisen und der Befestigung von "Fachwerkkomponenten" wie den Diagonalstützen 44 und/oder den Diagonalträgern 46 dienen. Bei dem gezeigten Ausführungsbeispiel weisen die Befestigungseinrichtungen 26.2 eines zweiten Rasters, das sich im Bereich des (im Querschnitt gesehen) geschlossenen, kastenartigen Bereichs befindet, einen größeren Abstand und einen größeren Durchmesser der Öffnungen auf. Der Abstand kann beispielsweise 20 cm betragen und kann der Durchführung von Stäben 16 (vgl.
In
Claims (5)
- Formwork assembly (10) for cantilever construction, in particular of bridges, having at least one formwork component, at least one fixed beam (32) and at least one movable part (20, 42), characterised by at least one largely horizontal plain bearing (34) having at least one bearing portion (28) made of plastic which is provided on the movable part of the formwork assembly and between the fixed beam (32) and the movable part, wherein the plain bearing (34) is self-locking up to a gradient of about 5%, preferably about 6%, further preferably about 10%.
- Formwork assembly according to claim 1, characterised in that the plain bearing (34) further has at least one bearing portion (32) made of metal, preferably steel.
- Formwork assembly according to either of the preceding claims, characterised in that at least one bearing portion, preferably the plastic bearing portion (28), is provided replaceably.
- Formwork assembly according to any of the preceding claims, characterised in that at least one bearing portion, preferably the plastic bearing portion (28), is attached magnetically.
- Formwork assembly according to any of the preceding claims, characterised in that it has an inner formwork carriage and/or a side formwork component, and in that at least one plain bearing is provided between the inner formwork carriage and/or the side formwork component on the one hand and the fixed beam of the formwork assembly on the other hand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL08804531T PL2203597T3 (en) | 2007-10-04 | 2008-09-22 | Formwork configuration for the cantilever construction of bridges |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007047443A DE102007047443A1 (en) | 2007-10-04 | 2007-10-04 | Formwork arrangement for the cantilever construction of bridges |
PCT/EP2008/062605 WO2009043749A1 (en) | 2007-10-04 | 2008-09-22 | Formwork configuration for the cantilever construction of bridges |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2203597A1 EP2203597A1 (en) | 2010-07-07 |
EP2203597B1 true EP2203597B1 (en) | 2015-10-28 |
Family
ID=40120199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08804531.5A Active EP2203597B1 (en) | 2007-10-04 | 2008-09-22 | Formwork configuration for the cantilever construction of bridges |
Country Status (6)
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---|---|
EP (1) | EP2203597B1 (en) |
BR (1) | BRPI0817512A2 (en) |
DE (1) | DE102007047443A1 (en) |
ES (1) | ES2557887T3 (en) |
PL (1) | PL2203597T3 (en) |
WO (1) | WO2009043749A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2435505B1 (en) | 2011-11-30 | 2014-09-23 | Rubrica Ingenieria Y Arquitectura, S.L. | WORK FOR EXECUTION OF WORKS |
CN106836012A (en) * | 2017-03-14 | 2017-06-13 | 中铁二十四局集团有限公司 | A kind of automatic advancing device of Hanging Basket |
DE102019104548A1 (en) * | 2019-02-22 | 2020-08-27 | Peri Gmbh | LIFT DRIVE FOR A RAIL-GUIDED FREE-FRAME DEVICE |
DE102019203959A1 (en) | 2019-03-22 | 2020-09-24 | Hünnebeck GmbH | Structural system for the manufacture of structures |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1170440B (en) * | 1963-01-26 | 1964-05-21 | Esslingen Maschf | Plain bearings for bridges u. like structures |
DE1658587B1 (en) * | 1967-10-30 | 1970-11-05 | Dyckerhoff & Widmann Ag | Device for producing multi-span supporting structures, in particular bridge superstructures, made of reinforced or prestressed concrete |
US3989218A (en) | 1973-07-17 | 1976-11-02 | Societe D'etudes De Genie Civil Et De Techniques Industrielles (Ge.C.T.I.) | Cantilever form used in bridge construction |
DE2555311C3 (en) * | 1975-12-09 | 1980-06-12 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Device for the section-by-section, free pre-construction of bridge structures made of reinforced or prestressed concrete |
DE2660087C2 (en) | 1976-02-26 | 1980-05-22 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Device for the section-by-section, free front construction of multi-span bridge structures made of reinforced or prestressed concrete |
CH621594A5 (en) * | 1977-09-16 | 1981-02-13 | Proceq Sa | Sliding bearing |
CH628940A5 (en) | 1978-02-28 | 1982-03-31 | Montan Castell Ag | METHOD FOR PRODUCING A STRUCTURE AND DEVICE FOR CARRYING OUT THIS METHOD. |
DE2848536A1 (en) | 1978-11-09 | 1980-05-22 | Zueblin Ag | Concrete bridge phased advance section form carriage - has sliding side pieces linking height adjustable transverse frame, between flanges |
NO150289C (en) | 1982-06-01 | 1984-09-19 | Oestlandske Spennbetong As | DEVICE FOR SECTIONAL CASTING OF TENSIONED CONCRETE BRIDGES AFTER THE FRONT BUILDING METHOD |
DE3247326C2 (en) * | 1982-12-21 | 1984-11-22 | Emil Steidle Gmbh & Co, 7480 Sigmaringen | Process and falsework for the construction of reinforced concrete bridges in sections |
DE3620587C1 (en) * | 1986-06-19 | 1987-08-13 | Bilfinger Berger Bau | Method and device for the construction of reinforced-concrete or prestressed-concrete bridge superstructures in sections |
-
2007
- 2007-10-04 DE DE102007047443A patent/DE102007047443A1/en not_active Withdrawn
-
2008
- 2008-09-22 WO PCT/EP2008/062605 patent/WO2009043749A1/en active Application Filing
- 2008-09-22 BR BRPI0817512A patent/BRPI0817512A2/en not_active Application Discontinuation
- 2008-09-22 EP EP08804531.5A patent/EP2203597B1/en active Active
- 2008-09-22 ES ES08804531.5T patent/ES2557887T3/en active Active
- 2008-09-22 PL PL08804531T patent/PL2203597T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2557887T3 (en) | 2016-01-29 |
PL2203597T3 (en) | 2016-06-30 |
BRPI0817512A2 (en) | 2019-01-02 |
WO2009043749A1 (en) | 2009-04-09 |
EP2203597A1 (en) | 2010-07-07 |
DE102007047443A1 (en) | 2009-04-16 |
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