EP0514364B1 - Apparatus for carrying out inspection and renovation works or the like on undersides of bridges - Google Patents

Apparatus for carrying out inspection and renovation works or the like on undersides of bridges Download PDF

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Publication number
EP0514364B1
EP0514364B1 EP19920890087 EP92890087A EP0514364B1 EP 0514364 B1 EP0514364 B1 EP 0514364B1 EP 19920890087 EP19920890087 EP 19920890087 EP 92890087 A EP92890087 A EP 92890087A EP 0514364 B1 EP0514364 B1 EP 0514364B1
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EP
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Prior art keywords
cables
bridge
cable
working platform
abutments
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EP19920890087
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German (de)
French (fr)
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EP0514364A1 (en
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Hans Junger
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H Junger Baugesellschaft Mbh und Co KG
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H Junger Baugesellschaft Mbh und Co KG
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges

Definitions

  • the invention relates to a device for use in inspection and renovation work or the like on bridges with a cable car system with at least two ropes tensioned along the bridge and at least one work platform which can be moved by means of these ropes.
  • the object of the invention is to provide a device for use in inspection and refurbishment work or the like on underside of the bridge, which is inexpensive and does not constitute a traffic obstruction.
  • this object is achieved in a generic device in that for inspection and renovation work or the like the lower cableway system in the area of the lower bridge view, that the at least two cables of the cable car system are anchored to the bridge abutments, and that the work platform is at least one working platform suspended from the cables and extending transversely to the bridge. Since the working platform now hangs under the supporting structure, no structural structures are required to support the working platform on the carriageway, and the installation of a cable car system under the supporting structure is easy to carry out.
  • the device is characterized in that the ropes are supporting ropes which are braced on the bridge abutments and which are supported by rope shoes which are attached to the supporting structure of the bridge.
  • the suspension cables can be easily stretched between the bridge abutments and, depending on the length or the radius of the curve of the bridge, supported by any number of rope shoes to minimize the sag of the suspension cable to the required extent and the course of the suspension cable to the curvature to adapt the bridge in the curve area.
  • the working platform can then have rope pulleys according to the invention, by means of which it can be moved on the supporting ropes.
  • the ropes are carrying ropes that support the working platform and are connected to them, which are deflected at the bridge abutments and guided over support rollers, which, compared to the previously described embodiment, may possibly be different. can be more advantageous.
  • base plates are fastened to the bridge abutments and to the structure of the bridge.
  • the base plates on the bridge abutments have known rope anchorings and the base plates on the supporting structure have the rope shoes.
  • the base plates with the cable anchorings or the cable shoes can be left after the work on the bridge, however can also be removed.
  • the base plates can be left on the bridge abutments or on the supporting structure and the rope anchorings and the rope shoes can be removed.
  • suspension cables or the ropes are guided past any supports. This offers the advantage that the transfer of the working platform from a field of the bridge into a further field which is separated from this field by a support can be carried out very simply in a manner which will be explained later.
  • At least one traction rope is tensioned between the bridge abutments, by means of which the working platform can optionally be moved via a winch on the supporting cable.
  • At least one, preferably two, cable winches are arranged on the working platform, by means of which the working platform can be moved vertically by means of holding ropes, by means of which the working platform is suspended from the supporting cables or the driving cables, then the distance between the working platform and the bottom view of the structure can be adjusted as required and it is also possible that the abutments and the support surfaces are accessible from one and the same working platform.
  • a structure 2 of a bridge is shown in cross section.
  • the structure 2 is a concrete structure in the present form, but the device according to the invention can also be used for structures in steel construction or other structures.
  • three support cables 6, 7 and 8 are arranged on the bottom view of the supporting structure 2, which run approximately in the direction of the longitudinal extension of the bridge, and on which a working platform 1 is suspended.
  • three support ropes 6, 7 and 8 are used, but the number of support ropes is essentially dependent on the width of the supporting structure or the shape of the work platform, which can be adapted to the shape of the bottom view.
  • the work platform 1 consists of a horizontal lower part 9, an inclined part 10 and a part 11 projecting over the edge of the supporting structure 2, so that the inspection and the loading of equipment, tools and required material is possible directly from the road surface.
  • the work platform may be inspected or loaded by means of an independently movable access scaffold part to the side of the supporting structure.
  • the anchoring of the supporting cables 6, 7 and 8 takes place as in the embodiment of the device according to the invention shown in FIGS. 2 and 3 on the abutments 3 and 4 of the bridge, the anchoring being able to be carried out, for example, with the cable anchoring shown in FIG. 4.
  • the supporting ropes 6 to 8 are shown by rope shoes 11, which are shown in FIGS. 5 and 6 are supported.
  • the cable anchor 12 is detachably connected to a base plate 13, as shown in Fig. 4, which e.g. is screwed to the abutment 3 via dowels. After completion of the work, the base plate 13 can remain on the abutment 3 and be used again for new work.
  • a tensioning device is fastened to the rope anchorage 12 and consists of a pulley 23, a tensioning rope 14 guided around a deflection roller 21 and a weight 15.
  • the attachment of the suspension cable can be done using a conventional cable attachment, such as a wedge lock, attached to the rope anchor 12.
  • rope shoes 11 are shown, by means of which the supporting rope is supported between the abutments 3 and 4, the rope shoe 11 shown in FIG. 5 being screwed directly to the supporting structure 2, whereas the rope shoe shown in FIG. 6 11 is fastened to the supporting structure 2 by means of a base plate 16 which is firmly connected to the supporting structure 2 and is left after the work on this has been completed.
  • the work platform 1 is suspended via cable rollers 17, which are mounted on a roller holder 18, and holding cables 19 on the supporting cables 6 to 8, and can be moved (FIG. 6).
  • a stationary cable 20 is tensioned parallel to the supporting cables 6, 7, 8, on which a gripping pull attached to the working platform 1 engages.
  • a traction rope can be provided that is coupled to the work platform 1 (or can be coupled if required).
  • Rope winches which are well known in the prior art and are not shown for this reason, are fastened to the work platform 1, by means of which the holding ropes 19 can be wound up and down.
  • the work platform 1 can be raised and lowered vertically, so that the distance between the work platform and the bottom view can be adjusted as required, but also a vertical positioning of the work platform along the bridge abutment and any existing supports is possible.
  • Another very important advantage of the device according to the invention is that the transfer of the work platform 1 from one work (bridge) field into another can be carried out very simply in the following way:
  • the work platform 1 is lowered over the cable winches and the holding cables 19 along a support to the floor and then dismantled to such an extent that it can be moved to the other side of the support.
  • the support rollers can then easily be moved to the correct position in the new structure field on the other side of the support on the support cables.
  • the work platform is then reassembled in the new field and can be raised.
  • suspension cables are arranged so that they are guided past the supports from abutments to abutments.
  • a winch preferably operated by hand, can be used for this purpose, which winds up or unwinds one or, if necessary, two pulling ropes, which are anchored to the abutments or the supports.
  • driving cables guided over deflection pulleys can also be used, in which case the holding cables 19 of the working platform 1 are clamped to the driving cables by suitable devices.
  • the stage is moved by the movable ropes, which can be driven by a common or separate drive.
  • the base plates 13 and 16 can also be attached to the structure by means of bolts which are guided through bores in the concrete parts, for example the webs and the base plate, and possibly screwed in with the interposition of tabs.

Description

Die Erfindung betrifft eine Vorrichtung zur Verwendung bei Inspektions- und Sanierungsarbeiten od. dgl. an Brücken mit einem Seilbahnsystem mit wenigstens zwei entlang der Brücke gespannten Seilen und wenigstens einer mittels dieser Seile verfahrbaren Arbeitsplattform.The invention relates to a device for use in inspection and renovation work or the like on bridges with a cable car system with at least two ropes tensioned along the bridge and at least one work platform which can be moved by means of these ropes.

Zur Zeit gibt es für Revisions- und Sanierungsarbeiten an Brückentragwerksuntersichten im wesentlichen drei grundsätzliche Methoden. Die Errichtung eines Standgerüstes, was bei hohen Brückenkonstruktionen sehr aufwendig ist, die Verwendung abgehängter Gerüstbrücken, die bei großen Brückenbreiten aufwendig sind und bei denen sich das Umsetzen der Gerüstbrücke von einem Feld in ein weiteres, vom ersten Feld durch eine Stütze getrenntes Feld sehr aufwendig gestaltet, und die Verwendung eines Brückeninspektionsgerätes, das sehr teuer ist und einen hohen Platzbedarf auf der Fahrbahn bedingt, was in der Folge Verkehrsbehinderungen mit sich bringt. Außerdem sind Brückeninspektionsgeräte nur für sehr geringe Nutzlasten ausgelegt.At the moment, there are essentially three basic methods for revision and renovation work on bridge structure undersides. The erection of a stand scaffolding, which is very expensive for tall bridge constructions, the use of suspended scaffold bridges, which are complex for large bridge widths, and for which the transfer of the scaffold bridge from one field to another, separated from the first field by a column, is very complex , and the use of a bridge inspection device, which is very expensive and requires a lot of space on the road, which in turn results in traffic disruptions. In addition, bridge inspection devices are only designed for very low payloads.

Aus der DE-B-1 119 317 ist eine Vorrichtung zur Inspektion und Sanierung von Tragkabeln und Hängeseilen von Hänge- oder Zügelgurtbrücken bekannt, die aus zwei Arbeitskabinen besteht, die auf zwei Tragseilen aufgehängt und über Zugseile auf den Tragseilen verfahrbar sind.From DE-B-1 119 317 a device for the inspection and refurbishment of suspension cables and suspension ropes of suspension or rein strap bridges is known, which consists of two working cabins which are suspended on two suspension ropes and can be moved on the suspension ropes via pull ropes.

Aus der US-A-4 854 419 ist eine Arbeitsplattform zum Sanieren einer Brückenuntersicht bekannt, die statisch über Ketten vom Tragwerk der Brücke abgehängt ist.From US-A-4 854 419 a work platform for the rehabilitation of a bridge underside is known, which is suspended statically by chains from the structure of the bridge.

Aufgabe der Erfindung ist es, eine Vorrichtung zur Verwendung bei Inspektions- und Sanierungsarbeiten od. dgl. an Brückenuntersichten anzugeben, die kostengünstig ist und keine Verkehrsbehinderung darstellt.The object of the invention is to provide a device for use in inspection and refurbishment work or the like on underside of the bridge, which is inexpensive and does not constitute a traffic obstruction.

Gemäß der Erfindung wird diese Aufgabe bei einer gattungsgemäßen Vorrichtung dadurch gelöst, daß für Inspektions- und Sanierungsarbeiten od.dgl. an Brückenuntersichten das Seilbahnsystem im Bereich der Brückenuntersicht angeordnet ist, daß die wenigstens zwei Seile des Seilbahnsystems an den Brückenwiderlagern abgespannt sind, und daß die Arbeitsplattform wenigstens eine von den Seilen abgehängte, sich quer zur Brücke erstreckende Arbeitsbühne ist. Da die Arbeitsbühne nunmehr unter dem Tragwerk hängt, sind keine konstruktiven Aufbauten zur Abstützung der Arbeitsbühne auf der Fahrbahn mehr erforderlich und das Anbringen eines Seilbahnsystems unter dem Tragwerk ist einfach durchführbar.According to the invention, this object is achieved in a generic device in that for inspection and Renovation work or the like the lower cableway system in the area of the lower bridge view, that the at least two cables of the cable car system are anchored to the bridge abutments, and that the work platform is at least one working platform suspended from the cables and extending transversely to the bridge. Since the working platform now hangs under the supporting structure, no structural structures are required to support the working platform on the carriageway, and the installation of a cable car system under the supporting structure is easy to carry out.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Vorrichtung dadurch gekennzeichnet, daß die Seile Tragseile sind, die an den Brückenwiderlagern abgespannt sind und die durch Seilschuhe, die am Tragwerk der Brücke befestigt sind, unterstützt werden. Die Tragseile können dabei auf einfache Weise zwischen den Brückenwiderlagern gespannt werden und in Abhängigkeit von der Länge bzw. dem Kurvenradius der Brücke durch beliebig viele Seilschuhe abgestützt werden, um den Durchhang des Tragseiles auf das erforderliche Maß zu minimieren und den Verlauf des Tragseiles an die Krümmung der Brücke im Kurvenbereich anzupassen.
Die Arbeitsbühne kann dann erfindungsgemäß Seilrollen aufweisen, über welche sie auf den Tragseilen verfahrbar ist.According to a preferred embodiment of the invention, the device is characterized in that the ropes are supporting ropes which are braced on the bridge abutments and which are supported by rope shoes which are attached to the supporting structure of the bridge. The suspension cables can be easily stretched between the bridge abutments and, depending on the length or the radius of the curve of the bridge, supported by any number of rope shoes to minimize the sag of the suspension cable to the required extent and the course of the suspension cable to the curvature to adapt the bridge in the curve area.
The working platform can then have rope pulleys according to the invention, by means of which it can be moved on the supporting ropes.

Gemäß einer weiteren Ausführungsform der Erfindung sind die Seile die Arbeitsbühne tragende und mit dieser verbundene Fahrseile, die an den Brückenwiderlagern umgelenkt und über Stützrollen geführt werden, was gegenüber der vorhin beschriebenen Ausführungsform u.U. vorteilhafter sein kann.According to a further embodiment of the invention, the ropes are carrying ropes that support the working platform and are connected to them, which are deflected at the bridge abutments and guided over support rollers, which, compared to the previously described embodiment, may possibly be different. can be more advantageous.

Zur Befestigung des Seilbahnsystems am Tragwerk und an den Brückenwiderlagern kann vorgesehen sein, daß an den Brückenwiderlagern und am Tragwerk der Brücke Grundplatten befestigt sind. Dabei kann vorgesehen sein, daß die Grundplatten an den Brückenwiderlagern an sich bekannte Seilverankerungen und die Grundplatten am Tragwerk die Seilschuhe aufweisen. Die Grundplatten mit den Seilverankerungen bzw. den Seilschuhen können nach Durchführung der Arbeiten an der Brücke belassen, aber auch abmontiert werden.To fasten the cable car system to the structure and the bridge abutments, it can be provided that base plates are fastened to the bridge abutments and to the structure of the bridge. It can be provided that the base plates on the bridge abutments have known rope anchorings and the base plates on the supporting structure have the rope shoes. The base plates with the cable anchorings or the cable shoes can be left after the work on the bridge, however can also be removed.

Wenn jedoch gemäß einer bevorzugten Ausführungsform der Erfindung die Seilverankerungen und die Seilschuhe lösbar mit den Grundplatten verbunden sind, dann können die Grundplatten an den Brückenwiderlagern bzw. am Tragwerk belassen und die Seilverankerungen und die Seilschuhe abmontiert werden. Dies bietet den Vorteil, daß bei neuerlichen Arbeiten die Grundplatten am Widerlager und am Tragwerk benutzt werden können, was die Montage der erfindungsgemäßen Vorrichtung erleichtert.If, however, according to a preferred embodiment of the invention, the rope anchors and the rope shoes are detachably connected to the base plates, then the base plates can be left on the bridge abutments or on the supporting structure and the rope anchorings and the rope shoes can be removed. This offers the advantage that the base plates on the abutment and on the supporting structure can be used for new work, which facilitates the assembly of the device according to the invention.

Erfindungsgemäß kann vorgesehen sein, daß die Tragseile bzw. die Fahrseile an gegebenenfalls vorhandenen Stützen vorbeigeführt sind. Dies bietet den Vorteil, daß das Umsetzen der Arbeitsbühne auf eine später noch zu erläuternde Weise von einem Feld der Brücke in ein weiteres, von diesem Feld durch eine Stütze getrenntes Feld sehr einfach durchgeführt werden kann.According to the invention it can be provided that the suspension cables or the ropes are guided past any supports. This offers the advantage that the transfer of the working platform from a field of the bridge into a further field which is separated from this field by a support can be carried out very simply in a manner which will be explained later.

Um die Arbeitsbühne verfahren zu können, kann vorgesehen sein, daß zwischen den Brückenwiderlagern wenigstens ein Zugseil gespannt ist, mittels dem die Arbeitsbühne gegebenenfalls über eine Winde am Tragseil verfahren werden kann.In order to be able to move the working platform, it can be provided that at least one traction rope is tensioned between the bridge abutments, by means of which the working platform can optionally be moved via a winch on the supporting cable.

Wenn gemäß einer besonders vorteilhaften Ausführungsform der Erfindung an der Arbeitsbühne wenigstens eine, vorzugsweise zwei Seilwinden angeordnet sind, mittels welcher die Arbeitsbühne über Halteseile, über welche die Arbeitsbühne an den Tragseilen bzw. den Fahrseilen abgehängt ist, vertikal verfahrbar ist, dann ist der Abstand zwischen der Arbeitsbühne und der Untersicht des Tragwerkes nach Bedarf einstellbar und es ist weiter möglich, daß auch die Widerlager und die Stützenflächen von ein- und derselben Arbeitsbühne aus zugänglich sind.If, according to a particularly advantageous embodiment of the invention, at least one, preferably two, cable winches are arranged on the working platform, by means of which the working platform can be moved vertically by means of holding ropes, by means of which the working platform is suspended from the supporting cables or the driving cables, then the distance between the working platform and the bottom view of the structure can be adjusted as required and it is also possible that the abutments and the support surfaces are accessible from one and the same working platform.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung unter Bezugnahme auf die Zeichnungen.Further features and advantages of the invention will become apparent from the following description with reference to the drawings.

Es zeigt:

  • Fig. 1 einen Querschnitt durch ein Brückentragwerk mit einer Arbeitsbühne,
  • Fig. 2 eine schematische, teilweise Ansicht einer Brücke und einer zwischen den Widerlagern verfahrbaren Arbeitsbühne,
  • Fig. 3 eine schematische Draufsicht auf die Seilanordnung von Fig. 2 ohne die Arbeitsbühne,
  • Fig. 4 eine beispielhafte Ausführungsform einer Seilverankerung an einem Widerlager,
  • Fig. 5 eine Darstellung eines an der Untersicht eines Tragwerkes befestigten Seilschuhes und
  • Fig. 6 die Ansicht einer weiteren Ausführungsform eines Seilschuhes mit einer Seilrolle, an der die Arbeitsbühne aufgehängt ist.
It shows:
  • 1 shows a cross section through a bridge structure with a working platform,
  • 2 shows a schematic, partial view of a bridge and a working platform which can be moved between the abutments,
  • 3 shows a schematic top view of the cable arrangement from FIG. 2 without the working platform,
  • Fig. 4 shows an exemplary embodiment of a cable anchor on an abutment,
  • Fig. 5 is an illustration of a rope shoe attached to the bottom view of a supporting structure and
  • Fig. 6 is a view of another embodiment of a cable shoe with a pulley on which the work platform is suspended.

In Fig. 1 ist ein Tragwerk 2 einer Brücke im Querschnitt dargestellt. Das Tragwerk 2 ist in der vorliegenden Form ein Betontragwerk, jedoch ist die erfindungsgemäße Vorrichtung auch für Tragwerke im Stahlbau oder andere Tragwerke verwendbar. An der Untersicht des Tragwerks 2 sind im vorliegenden Fall drei Tragseile 6, 7 und 8 angeordnet, die etwa in Richtung der Längserstreckung der Brücke verlaufen, und an denen eine Arbeitsbühne 1 aufgehängt ist. Im dargestellten Fall werden drei Tragseile 6, 7 und 8 verwendet, die Anzahl der Tragseile ist jedoch im wesentlichen von der Breite des Tragwerkes bzw. der Form der Arbeitsbühne, die an die Form der Untersicht angepaßt sein kann, abhängig.In Fig. 1, a structure 2 of a bridge is shown in cross section. The structure 2 is a concrete structure in the present form, but the device according to the invention can also be used for structures in steel construction or other structures. In the present case, three support cables 6, 7 and 8 are arranged on the bottom view of the supporting structure 2, which run approximately in the direction of the longitudinal extension of the bridge, and on which a working platform 1 is suspended. In the illustrated case, three support ropes 6, 7 and 8 are used, but the number of support ropes is essentially dependent on the width of the supporting structure or the shape of the work platform, which can be adapted to the shape of the bottom view.

Die Arbeitsbühne 1 besteht aus einem waagrechten Unterteil 9, einem schrägen Teil 10 und einem über den Rand des Tragwerkes 2 auskragenden Teil 11, so daß die Begehung sowie die Beschikkung mit Gerät, Werkzeug und erforderlichem Material direkt von der Fahrbahnoberfläche möglich ist.The work platform 1 consists of a horizontal lower part 9, an inclined part 10 and a part 11 projecting over the edge of the supporting structure 2, so that the inspection and the loading of equipment, tools and required material is possible directly from the road surface.

Es ist jedoch auch möglich, daß die Begehung bzw. Beschickung der Arbeitsbühne mittels eines selbständig verfahrbaren Einstieggerüstteils seitlich des Tragwerkes erfolgt.However, it is also possible for the work platform to be inspected or loaded by means of an independently movable access scaffold part to the side of the supporting structure.

Die Verankerung der Tragseile 6, 7 und 8 erfolgt wie bei der in Fig. 2 und 3 dargestellten Ausführungsform der erfindungsgemäßen Vorrichtung an den Widerlagern 3 und 4 der Brücke, wobei die Verankerung beispielsweise mit der in Fig. 4 näher dargestellten Seilverankerung durchgeführt werden kann. Zwischen den Widerlagern 3 und 4 werden die Tragseile 6 bis 8 durch Seilschuhe 11, die in Fig. 5 und 6 näher dargestellt sind, unterstützt.The anchoring of the supporting cables 6, 7 and 8 takes place as in the embodiment of the device according to the invention shown in FIGS. 2 and 3 on the abutments 3 and 4 of the bridge, the anchoring being able to be carried out, for example, with the cable anchoring shown in FIG. 4. Between the abutments 3 and 4, the supporting ropes 6 to 8 are shown by rope shoes 11, which are shown in FIGS. 5 and 6 are supported.

Die Seilverankerung 12 ist wie in Fig. 4 näher dargestellt, lösbar mit einer Grundplatte 13 verbunden, die z.B. über Dübel mit dem Widerlager 3 verschraubt ist. Nach Abschluß der Arbeiten kann die Grundplatte 13 am Widerlager 3 verbleiben und für neuerliche Arbeiten wieder verwendet werden.The cable anchor 12 is detachably connected to a base plate 13, as shown in Fig. 4, which e.g. is screwed to the abutment 3 via dowels. After completion of the work, the base plate 13 can remain on the abutment 3 and be used again for new work.

An der Seilverankerung 12 ist eine Spanneinrichtung befestigt, die aus einem Flaschenzug 23, einem um eine Umlenkrolle 21 geführten Spannseil 14 und einem Gewicht 15 besteht. An der gegenüberliegenden Seite am Widerlager 4 kann die Befestigung des Tragseiles mittels einer üblichen Seilbefestigung, wie z.B. einem Keilschloß, an der Seilverankerung 12 befestigt sein.A tensioning device is fastened to the rope anchorage 12 and consists of a pulley 23, a tensioning rope 14 guided around a deflection roller 21 and a weight 15. On the opposite side of the abutment 4, the attachment of the suspension cable can be done using a conventional cable attachment, such as a wedge lock, attached to the rope anchor 12.

In den Fig. 5 und 6 sind Seilschuhe 11 dargestellt, mittels derer das Tragseil zwischen den Widerlagern 3 und 4 abgestützt wird, wobei der in Fig. 5 dargestellte Seilschuh 11 direkt mit dem Tragwerk 2 verschraubt ist, wogegen der in Fig. 6 dargestellte Seilschuh 11 über eine Grundplatte 16, die mit dem Tragwerk 2 fest verbunden ist und nach Beendigung der Arbeiten an diesem belassen wird, am Tragwerk 2 befestigt ist.5 and 6, rope shoes 11 are shown, by means of which the supporting rope is supported between the abutments 3 and 4, the rope shoe 11 shown in FIG. 5 being screwed directly to the supporting structure 2, whereas the rope shoe shown in FIG. 6 11 is fastened to the supporting structure 2 by means of a base plate 16 which is firmly connected to the supporting structure 2 and is left after the work on this has been completed.

Die Arbeitsbühne 1 ist über Seilrollen 17, die an einer Rollenhalterung 18 gelagert sind, und Halteseile 19 an den Tragseilen 6 bis 8 aufgehängt, und verfahrbar (Fig. 6). Um die Arbeitsbühne 1 entlang der Tragseile 6, 7, 8 zu verfahren, ist parallel zu den Tragseilen 6, 7, 8 ein stillstehendes Seil 20 gespannt, an dem ein an der Arbeitsbühne 1 befestigter Greifzug angreift. Alternativ kann auch ein mit der Arbeitsbühne 1 gekuppeltes (oder bei Bedarf kuppelbares) Zugseil vorgesehen sein.The work platform 1 is suspended via cable rollers 17, which are mounted on a roller holder 18, and holding cables 19 on the supporting cables 6 to 8, and can be moved (FIG. 6). In order to move the working platform 1 along the supporting cables 6, 7, 8, a stationary cable 20 is tensioned parallel to the supporting cables 6, 7, 8, on which a gripping pull attached to the working platform 1 engages. Alternatively, a traction rope can be provided that is coupled to the work platform 1 (or can be coupled if required).

An der Arbeitsbühne 1 sind im Stand der Technik hinlänglich bekannte und aus diesem Grund nicht dargestellte Seilwinden befestigt, mittels derer die Halteseile 19 auf- und abgespult werden können. Auf diese Weise kann die Arbeitsbühne 1 vertikal hochgehoben und abgesenkt werden, so daß der Abstand zwischen der Arbeitsbühne und der Untersicht je nach Bedarf eingestellt werden kann, aber auch ein vertikales Positionieren der Arbeitsbühne entlang der Brückenwiderlager und eventuell vorhandener Stützen möglich wird.Rope winches, which are well known in the prior art and are not shown for this reason, are fastened to the work platform 1, by means of which the holding ropes 19 can be wound up and down. In this way, the work platform 1 can be raised and lowered vertically, so that the distance between the work platform and the bottom view can be adjusted as required, but also a vertical positioning of the work platform along the bridge abutment and any existing supports is possible.

Ein weiterer, sehr wesentlicher Vorteil der erfindungsgemäßen Vorrichtung liegt darin, daß das Umsetzen der Arbeitsbühne 1 von einem Arbeits- (Brücken-)feld in ein nächstes sehr einfach auf folgende Weise durchgeführt werden kann:Another very important advantage of the device according to the invention is that the transfer of the work platform 1 from one work (bridge) field into another can be carried out very simply in the following way:

Die Arbeitsbühne 1 wird über die Seilwinden und die Halteseile 19 entlang einer Stütze bis zum Boden abgesenkt und dann so weit demontiert, daß ein Umsetzen auf die andere Seite der Stütze möglich ist. Die Stützrollen können dann ohne weiteres auf den Tragseilen in die richtige Position im neuen Tragwerksfeld auf der anderen Stützenseite verfahren werden. Anschließend wird die Arbeitsbühne im neuen Feld wieder zusammengebaut und kann hochgefahren werden.The work platform 1 is lowered over the cable winches and the holding cables 19 along a support to the floor and then dismantled to such an extent that it can be moved to the other side of the support. The support rollers can then easily be moved to the correct position in the new structure field on the other side of the support on the support cables. The work platform is then reassembled in the new field and can be raised.

Dabei ist es wesentlich, daß die Tragseile so angeordnet sind, daß sie an den Stützen vorbei von Widerlager zu Widerlager geführt werden. Dazu kann eine vorzugsweise von Hand bediente Seilwinde dienen, die ein oder bei Bedarf zwei Zugseile auf- bzw. abhaspelt, die an den Widerlagern oder den Stützen verankert sind.It is essential that the suspension cables are arranged so that they are guided past the supports from abutments to abutments. A winch, preferably operated by hand, can be used for this purpose, which winds up or unwinds one or, if necessary, two pulling ropes, which are anchored to the abutments or the supports.

Gemäß einer weiteren in den Zeichnungen nicht dargestellten Ausführungsform können statt der Tragseile 6, 7, 8 auch über Umlenkrollen geführte Fahrseile verwendet werden, wobei in diesem Fall die Halteseile 19 der Arbeitsbühne 1 durch geeignete Einrichtungen an den Fahrseilen festgeklemmt sind. Das Verfahren der Bühne erfolgt durch die beweglichen Fahrseile, die durch einen gemeinsamen oder getrennte Antriebe angetrieben werden können.According to a further embodiment, not shown in the drawings, instead of the carrying cables 6, 7, 8, driving cables guided over deflection pulleys can also be used, in which case the holding cables 19 of the working platform 1 are clamped to the driving cables by suitable devices. The stage is moved by the movable ropes, which can be driven by a common or separate drive.

Es ist noch erwähnenswert, daß die Grundplatten 13 und 16 bei aufgelösten Konstruktionen auch über Schraubbolzen am Tragwerk befestigt werden können, die durch Bohrungen in den Betonteilen, z.B. den Stegen und der Bodenplatte, geführt sind, und eventuell unter Zwischenfügung von Laschen festgeschraubt werden.It is also worth mentioning that the base plates 13 and 16 can also be attached to the structure by means of bolts which are guided through bores in the concrete parts, for example the webs and the base plate, and possibly screwed in with the interposition of tabs.

Claims (10)

  1. Apparatus for use in inspection and renovation works or the like on bridges, with a cable-way system having at least two cables (6, 7, 8) tensioned along the bridge and at least one working stage (1) transportable by means of these cables (6, 7, 8), characterized in that the cable-way system is arranged in the region of the underside of the bridge for inspection and renovation works or the like on the undersides of the bridge, in that the at least two cables (6, 7, 8) of the cable-way system are stayed to the bridge abutments (3, 4) and in that the working stage is at least one working platform (1) suspended from the cables (6, 7, 8) and extending transverse to the bridge.
  2. Apparatus according to claim 1, characterized in that the cables (6, 7, 8) are carrying cables which are stayed to the bridge abutments (3, 4) and are supported by cable shoes (11) which are fixed to the supporting structure (2) of the bridge.
  3. Apparatus according to claim 2, characterized in that at least one pull cable (20) is tensioned between the bridge abutments (3, 4) and the working platform (1) can be moved by means of this cable, if desired by way of a winch or a traction gripper, on the carrying cable (6, 7, 8).
  4. Apparatus according to claim 2 or 3, characterized in that the working platform (1) has cable pulleys (17) by means of which it moves on the carrying cables (6, 7, 8).
  5. Apparatus according to claim 1, characterized in that the cables carrying the working platform (1) and attached thereto are pull cables which are turned around at the bridge abutments (3, 4) and are guided over support pulleys.
  6. Apparatus according to any of claims 1 to 5, characterized in that base plates (13, 16) are fixed to the bridge abutments (3, 4) and to the supporting structure (2) of the bridge.
  7. Apparatus according to claim 6 and any of claims 2 to 4, characterized in that the base plates (13) on the bridge abutments (3, 4) comprise cable anchors (12) known per se and the base plates (16) on the supporting structure (2) comprise the cable shoes (11).
  8. Apparatus according to claim 7, characterized in that the cable anchors (12) and the cable shoes (11) are releasably attached to the base plates (13, 16).
  9. Apparatus according to any of claims 1 to 8, characterized in that the cables (6, 7, 8) or the support cables or the pull cables are led past possibly existing supports.
  10. Apparatus according to any of claims 1 to 9 and 2 or 5, characterized in that at least one and preferably two cable winches are arranged on the working platform (1), by means of which the working platform can be moved vertically by retaining cables (19) through which the working platform is suspended on the carrying cables or the pull cables.
EP19920890087 1991-04-16 1992-04-09 Apparatus for carrying out inspection and renovation works or the like on undersides of bridges Expired - Lifetime EP0514364B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT798/91 1991-04-16
AT79891A AT402748B (en) 1991-04-16 1991-04-16 DEVICE FOR USE IN INSPECTION AND RESTORATION WORK OR THE LIKE. ON BRIDGE VIEWS

Publications (2)

Publication Number Publication Date
EP0514364A1 EP0514364A1 (en) 1992-11-19
EP0514364B1 true EP0514364B1 (en) 1994-08-03

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Application Number Title Priority Date Filing Date
EP19920890087 Expired - Lifetime EP0514364B1 (en) 1991-04-16 1992-04-09 Apparatus for carrying out inspection and renovation works or the like on undersides of bridges

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EP (1) EP0514364B1 (en)
AT (1) AT402748B (en)
CZ (1) CZ116992A3 (en)
DE (1) DE59200342D1 (en)
DK (1) DK0514364T3 (en)
ES (1) ES2063573T3 (en)
HU (1) HUT66050A (en)
SK (1) SK116992A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1314773B1 (en) * 2000-01-20 2003-01-16 Giancarlo Perazzini VIADUCT MAINTENANCE APPARATUS
CN103255712B (en) * 2013-05-29 2015-04-08 株洲时代新材料科技股份有限公司 Method suitable for inspecting and maintaining different steel arch bridge arches
PL235194B1 (en) * 2015-08-10 2020-06-01 Escort Spolka Z Ograniczona Odpowiedzialnoscia A set for mounting a measuring device, preferably the sonar, for monitoring the bottom relief features around the bridge piers, method for mounting of the measuring device by means of such a set and the suspension gear for mounting of the measuring device
CN105926438B (en) * 2015-09-10 2017-07-21 乔永礼 Bridge machinery structure and its detection method
CN106436566A (en) * 2016-09-30 2017-02-22 济南城建集团有限公司 Moving device for bridge inspection and reinforcement
CN108221719B (en) * 2018-03-14 2023-09-19 北京市市政四建设工程有限责任公司 Sliding basket type bridge overhauling system and installation method thereof
CN109797649B (en) * 2019-01-31 2021-09-24 中铁桥隧技术有限公司 Maintenance vehicle hoisting scheme without influence on bridge floor traffic

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2067344A (en) * 1936-06-13 1937-01-12 William H Ringe Bridge span inspection and maintenance traveler
DE1119317B (en) * 1958-07-12 1961-12-14 Stahlbau Albert Liesegang Device for carrying out maintenance work on suspension cables and hanging ropes of hanging and pulling belt bridges
DE1100068B (en) * 1959-06-19 1961-02-23 Maschf Augsburg Nuernberg Ag Bridge inspection car for deck bridges with variable main support height and large console projection
DE1230061B (en) * 1960-12-23 1966-12-08 Zarges Leichtmetallbau K G Examination trolley that can be moved on the upper chords of a bridge
US4854419A (en) * 1988-12-19 1989-08-08 Lyras Louis G Particulate containment control method and platform device

Also Published As

Publication number Publication date
ES2063573T3 (en) 1995-01-01
CZ116992A3 (en) 1993-03-17
DK0514364T3 (en) 1994-09-12
DE59200342D1 (en) 1994-09-08
SK116992A3 (en) 1994-07-06
HUT66050A (en) 1994-09-28
ATA79891A (en) 1996-12-15
EP0514364A1 (en) 1992-11-19
HU9201251D0 (en) 1992-07-28
AT402748B (en) 1997-08-25

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