DE503825C - Scaffold-free formwork for reinforcing arched bridges on the underside during operation - Google Patents
Scaffold-free formwork for reinforcing arched bridges on the underside during operationInfo
- Publication number
- DE503825C DE503825C DEM106404D DEM0106404D DE503825C DE 503825 C DE503825 C DE 503825C DE M106404 D DEM106404 D DE M106404D DE M0106404 D DEM0106404 D DE M0106404D DE 503825 C DE503825 C DE 503825C
- Authority
- DE
- Germany
- Prior art keywords
- scaffold
- during operation
- free formwork
- vault
- formwork
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0233—Increasing or restoring the load-bearing capacity of building construction elements of vaulted or arched building elements
-
- 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
- E01D2101/22—Masonry; Bricks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Description
Gerüstlose Verschalung für dkss Verstärken von Brückengewölben auf der Unterseiten während des Betriebes Den Gegenstand der Erfindung bildet eine gerüstlose Verschalung für das Verstärken von Brückengewölben auf der Unterseite während des Betriebes. Das Neue besteht darin, daß die Verschalung mit dem alten Gewölbe durch in Bohrungen dieses Gewölbes einbetonierte Tragmittel in einem der Verstärkung entsprechenden Abstand, von der Gewölbeleitung starr verbunden ist. Man hat bisher bei Gewölbeverstärkungen die Verschalung auf den Boden aufgestellt und den Hohlraum zwischen der Verschalung und dem bereits vorhandenen Mauerbogen oder Pfeiler ausgefüllt oder mit einer Betonmasse ausgepreßt.Wenn aber diese Bogen, wie bei Eisenbalinbrücken beispielsweise, ununterbrochenen ständigen Wechselbeanspruchungen unterworfen sind, so ist es nicht möglich, eine innige Verbindung zwischen der nachträglich vorgelagerten Verstärkungsschicht und dem ursprünglichen Bogen herzustellen, da die elastischen Durchbiegungen des alten Mauerwerks eine innige Verbindung mit dem vorgelagerten neuen Mauerwerk unmöglich machen und das neue Mauerwerk in seinem Gefüge stören, so daß die Voraussetzungen in der statischen Berechnung nicht mehr erfüllt werden. Gemäß der Erfindung ist die Verschalung mit dem zu verstärkenden Mauerwerk fest verbunden, so daß das neue Verstärkungsgewölbe die gesamten Schwingungen und Bewegungen wie das alte Mauerwerk mit ausführt. Auf diese Weise wird eine innige Verbindung des neuen Mauerwerks mit dem alten Mauerwerk während der gesamten Abbindezeit ohne Rücksicht auf die Weiterführung des Betriebes erreicht. Auf der beiliegenden Zeichnung ist ein Ausführungsbeispiel des Gegenstandes dargestellt.Scaffold-free cladding for dkss reinforcement of bridge vaults of the undersides during operation The subject of the invention is a scaffolding-less Formwork for reinforcing bridge vaults on the underside during the Operation. The new thing is that the cladding with the old vault through Concrete in the bores of this vault support means in one of the reinforcement corresponding Distance from which the vault line is rigidly connected. One has so far with vault reinforcements the formwork placed on the ground and the cavity between the formwork and the existing wall arch or pillar filled in or with a concrete mass But if these arches are uninterrupted, as in the case of iron balin bridges, for example are subject to constant alternating stresses, so it is not possible to produce a intimate connection between the subsequently upstream reinforcement layer and to produce the original arch, since the elastic deflections of the old one Masonry an intimate connection with the new masonry in front is impossible make and disturb the structure of the new masonry, so that the requirements are no longer met in the static calculation. According to the invention is the cladding firmly connected to the masonry to be reinforced, so that the new Reinforcing vaults all vibrations and movements like the old masonry with executes. This creates an intimate connection between the new masonry and the the old masonry during the entire setting time regardless of the continuation of the company achieved. An exemplary embodiment is shown in the accompanying drawing of the object shown.
a bezeichnet das alte Mauerwerk mit dem Gewölbe oder Bogen b. Dieses Gewölbe b soll durch die Schicht c verstärkt werden. Zu diesem Zweck werden in das alte Mauerwerk b bzw. a Schraubenbolzen f eingesetzt. Diese Schraubenbolzen f tragen ein Längselement, beispielsweise ein Winkeleisen g. Auf dieses Winkeleisen wird die Verschalung h: in Form von Bohlen entsprechend der gewünschten Verstärkung aufgebracht. Der Zwischenraum zwischen dem alten Bogen b und der Verschalung k wird nun mit Betonmasse oder sonst einer abbindenden Masse ausgefüllt, wobei diese vorteilhaft unter starken Preßdruck gesetzt wird, so daß eine innige Verbindung zwischen dem alten Mauerwerk b und den vorgelagerten Massen c erfolgt. Vorteilhaft werden auch noch Eisenbewehrungen i insbesondere an den Widerlagern eingebaut.a denotes the old masonry with the vault or arch b. This vault b is intended to be reinforced by the layer c. For this purpose, screw bolts f are inserted into the old masonry b or a. These screw bolts f carry a longitudinal element, for example an angle iron g. The cladding h: is applied to this angle iron in the form of planks according to the desired reinforcement. The space between the old arch b and the cladding k is now filled with concrete mass or some other setting mass, which is advantageously placed under strong pressure so that an intimate connection between the old masonry b and the upstream masses c takes place. Iron reinforcements are also advantageously installed, in particular on the abutments.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM106404D DE503825C (en) | Scaffold-free formwork for reinforcing arched bridges on the underside during operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM106404D DE503825C (en) | Scaffold-free formwork for reinforcing arched bridges on the underside during operation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE503825C true DE503825C (en) | 1930-07-26 |
Family
ID=7325906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM106404D Expired DE503825C (en) | Scaffold-free formwork for reinforcing arched bridges on the underside during operation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE503825C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0567659A1 (en) * | 1992-04-21 | 1993-11-03 | Hamco Dinslaken Bausysteme GmbH | Bridge-strengthening and method for its manufacture |
WO1997007289A1 (en) * | 1995-08-18 | 1997-02-27 | Protec Industrial Ltd. | Reinforcing masonry structures |
EP2317030A1 (en) * | 2009-10-27 | 2011-05-04 | M Lefevre | Method for reinforcing a masonry or concrete structure by fixing a tension-reinforcement element comprising a titanium rod, and masonry or concrete structure. |
-
0
- DE DEM106404D patent/DE503825C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0567659A1 (en) * | 1992-04-21 | 1993-11-03 | Hamco Dinslaken Bausysteme GmbH | Bridge-strengthening and method for its manufacture |
WO1997007289A1 (en) * | 1995-08-18 | 1997-02-27 | Protec Industrial Ltd. | Reinforcing masonry structures |
EP2317030A1 (en) * | 2009-10-27 | 2011-05-04 | M Lefevre | Method for reinforcing a masonry or concrete structure by fixing a tension-reinforcement element comprising a titanium rod, and masonry or concrete structure. |
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