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EP0567659B1 - Bridge-strengthening and method for its manufacture - Google Patents

Bridge-strengthening and method for its manufacture Download PDF

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Publication number
EP0567659B1
EP0567659B1 EP92106747A EP92106747A EP0567659B1 EP 0567659 B1 EP0567659 B1 EP 0567659B1 EP 92106747 A EP92106747 A EP 92106747A EP 92106747 A EP92106747 A EP 92106747A EP 0567659 B1 EP0567659 B1 EP 0567659B1
Authority
EP
European Patent Office
Prior art keywords
steel
vault
existing
arch
reinforcement
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 - Lifetime
Application number
EP92106747A
Other languages
German (de)
French (fr)
Other versions
EP0567659A1 (en
Inventor
Joachim Prof. Dr. Risse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAMCO DINSLAKEN BAUSYSTEME GMBH
Original Assignee
Hamco Dinslaken Bausysteme GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hamco Dinslaken Bausysteme GmbH filed Critical Hamco Dinslaken Bausysteme GmbH
Priority to DE59205252T priority Critical patent/DE59205252D1/en
Priority to AT92106747T priority patent/ATE133732T1/en
Priority to EP92106747A priority patent/EP0567659B1/en
Publication of EP0567659A1 publication Critical patent/EP0567659A1/en
Application granted granted Critical
Publication of EP0567659B1 publication Critical patent/EP0567659B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a bridge reinforcement and a method for its production while traffic is running.
  • a bridge reinforcement is known in which the scaffold-free formwork for reinforcing bridge vaults is rigidly connected to the old vault on the underside by means of suspension elements concreted in bores at a distance from the vault reveal corresponding to the reinforcement.
  • the disadvantage of this solution is that the formwork is a simple additive reinforcement of the arch effect. A shear-resistant connection to increase the load-bearing capacity many times after renovation is not possible.
  • the invention seeks to remedy this.
  • the invention specified in claim 1 is based on the problem of making a bridge reinforcement by installing an additional inner reinforced concrete shell, which is connected to the existing vault by dowels.
  • the invention specified in claim 2 is based on the problem of providing a method for both renovation and reinforcement as well as for extension while traffic is running.
  • the bridge reinforcement and the widening of the road is carried out by introducing the steel tube 4, the shape of which is adapted to the existing vault 1 and which is on all sides a distance of 5 to 10 cm from the vault and the length of the intended widening of the road including the new embankment 11 to be produced.
  • the widening of the road can be symmetrical or asymmetrical to the previous center 8 of the road as required.
  • the previous end walls 9 of the vault 1 and the wing walls 10 are showered.
  • the bridge is strengthened by drilling the steel dowels 2 into the existing vault 1 at the calculated grid spacing, through the attached steel reinforcement 3, through the inserted steel pipe 4 and the filled-in concrete 5.
  • the steel pipe 4 is of the arch shape and the base 6 of the passage 7 adapted so that on all sides there is a distance of 5 to 10 cm between the inner wall of the vault and the outer circumferential surface of the steel tube 4, so that the concrete 5 can be well distributed and compacted in the intermediate space.

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  • 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)
  • Ropes Or Cables (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

According to the invention, the aim is achieved by drilling steel pins (2) into the existing arch (1) at a previously calculated grid spacing, a steel reinforcement (3), e.g. reinforcement mats, subsequently being attached to these pins (2), and, by drawing in a steel pipe (4), the shape of which is adapted to the arch and which has on all sides a spacing of 5 to 10 cm from the intrados of the arch, both a steel shell for a reinforced concrete shell to be introduced and a steel arch shell for the earth masses in the slope region being produced. The bridge reinforcement can be used particularly advantageously in the renovation, in increasing the carrying capacity and widening roadways of passages which are bridged by existing arches made of brick or natural stone masonry, it being possible to keep the traffic running. <IMAGE>

Description

Die Erfindung betrifft eine Brückenverstärkung und ein Verfahren zu ihrer Herstellung bei laufendem Verkehr.The invention relates to a bridge reinforcement and a method for its production while traffic is running.

Es ist bekannt, Gewölbe dadurch zu sanieren, daß geschädigte Teile ersetzt, Fugen neu mit Mörtel gefüllt und Entwässerungseinrichtungen wieder hergestellt werden.It is known to renovate vaults by replacing damaged parts, refilling joints with mortar and restoring drainage systems.

Weiter ist bekannt, Gewölbe dadurch zu verstärken, daß innen eine zusätzliche Gewölbeschale eingemauert bzw. außen eine zusätzliche Gewölbeschale aufgemauert wird.
Im ersten Falle wird der Durchflußquerschnitt sehr verengt, es ist eine aufwendige Rüstung erforderlich und das Ausmauern ist sehr schwer zu realisieren. Im zweiten Fall muß das Gewölbe freigelegt werden , wozu die gesamte Fahrbahn abgenommen werden muß.It is also known to reinforce vaults in that an additional vaulted shell is walled in on the inside or an additional vaulted shell is built in on the outside.
In the first case, the flow cross-section is very narrow, complex armor is required and bricking is very difficult to achieve. In the second case, the vault must be exposed, for which the entire roadway must be removed.

Es ist weiterhin bekannt, Gewölbe dadurch zu verlängern, daß auf einer Rüstung an das vorhandene Gewölbe in gleicher Weise angemauert wird.
Als nachteilig sind hierbei die aufwendige Rüstung und der schlechte Verbund zum vorhandenen Gewölbe zu nennen.It is also known to extend vaults by bricking up the existing vault on armor in the same way.
A disadvantage here is the complex armor and the poor connection to the existing vault.

Nach DE-C-503 825 ist eine Brückenverstärkung bekannt, bei der die gerüstlose Schalung für das Verstärken von Brückengewölben auf der Unterseite mit dem alten Gewölbe durch in Bohrungen einbetonierte Tragmittel in einem der Verstärkung entsprechenden Abstand von der Gewölbeleibung starr verbunden ist.
Der Nachteil dieser Lösung besteht darin, daß die Verschalung eine einfache additive Verstärkung der Gewölbewirkung darstellt. Eine schubfeste Verbindung zur vielfachen Erhöhung der Tragfähigkeit nach einer Sanierung ist nicht möglich.According to DE-C-503 825, a bridge reinforcement is known in which the scaffold-free formwork for reinforcing bridge vaults is rigidly connected to the old vault on the underside by means of suspension elements concreted in bores at a distance from the vault reveal corresponding to the reinforcement.
The disadvantage of this solution is that the formwork is a simple additive reinforcement of the arch effect. A shear-resistant connection to increase the load-bearing capacity many times after renovation is not possible.

Die Erfindung will hier Abhilfe schaffen. Der im Patentanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, eine Brückenverstärkung durch den Einbau einer inneren zusätzlichen Stahlbetonschale vorzunehmen, die mit dem bestehenden Gewölbe durch Dübel verbunden ist. Der im Patentanspruch 2 angegebenen Erfindung liegt das Problem zugrunde, ein Verfahren sowohl zur Sanierung als auch zur Verstärkung als auch zur Verlängerung bei laufendem Verkehr bereitzustellen.The invention seeks to remedy this. The invention specified in claim 1 is based on the problem of making a bridge reinforcement by installing an additional inner reinforced concrete shell, which is connected to the existing vault by dowels. The invention specified in claim 2 is based on the problem of providing a method for both renovation and reinforcement as well as for extension while traffic is running.

Erfindungsgemäß werden beide Probleme durch die in den Patentansprüchen 1 und 2 angegebenen Merkmale gelöst.According to the invention, both problems are solved by the features specified in claims 1 and 2.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß bei laufendem Verkehr alle bestehenden Ansprüche der Sanierung, der Verstärkung und der Verlängerung des Gewölbes gleichzeitig realisiert werden können. Weiter bewirkt das erfindungsgemäße, zusätzliche Gewölbe aus Stahlbeton, das mit dem vorhandenen Gewölbe durch rechnerisch nachgewiesene Stahldübel schubfest verbunden ist, eine vielfache Erhöhung der Tragfähigkeit.The advantages achieved by the invention are, in particular, that all existing claims for renovation, reinforcement and extension of the vault can be realized simultaneously with ongoing traffic. This further effects additional vaults according to the invention made of reinforced concrete, which is connected to the existing vault in a shear-resistant manner by means of arithmetically proven steel dowels, a multiple increase in the load-bearing capacity.

Die Erfindung wird anhand eines Ausführungsbeispieles näher erläutert. Es zeigen:

  • Figur 1: den Grundriß eines bestehenden Gewölbes unter der Straße mit Angabe der erforderlichen Straßenverbreiterung
  • Figur 2: den Querschnitt eines bestehenden Gewölbes mit den eingebauten Konstruktionselementen zur Verstärkung des Gewölbes
  • Figur 3: den Querschnitt der stählernen Gewölbesschale im Bereich der Böschung
The invention is explained in more detail using an exemplary embodiment. Show it:
  • Figure 1: the floor plan of an existing vault under the street with details of the required widening
  • Figure 2: the cross section of an existing vault with the built-in construction elements to reinforce the vault
  • Figure 3: the cross section of the steel vault shell in the area of the embankment

Nach Figur 1 erfolgt die Brückenverstärkung und die Straßenverbreiterung durch das Einbringen des Stahlrohres 4, dessen Form dem bestehenden Gewölbe 1 angepaßt und das allseitig einen Abstand von 5 bis 10 cm zur Gewölbeinnenleibung hat und dessen Länge der vorgesehenen Straßenverbreiterung einschließlich der neu herzustellenden Böschung 11 entspricht. Die Straßenverbreiterung kann je Erfordernis symmetrisch oder unsymmetrisch zur bisherigen Fahrbahnmitte 8 erfolgen. Die bisherigen Stirnmauern 9 des Gewölbes 1 und die Flügelmauern 10 werden überschüttet.According to Figure 1, the bridge reinforcement and the widening of the road is carried out by introducing the steel tube 4, the shape of which is adapted to the existing vault 1 and which is on all sides a distance of 5 to 10 cm from the vault and the length of the intended widening of the road including the new embankment 11 to be produced. The widening of the road can be symmetrical or asymmetrical to the previous center 8 of the road as required. The previous end walls 9 of the vault 1 and the wing walls 10 are showered.

Nach Figur 2 erfolgt die Brückenverstärkung durch das Einbohren der Stahldübel 2 im berechneten Rasterabstand in das vorhandene Gewölbe 1, durch die angeknüpfte Stahlbewehrung 3, durch das eingebrachte Stahlrohr 4 und den eingefüllten Beton 5. Das Stahlrohr 4 ist der Gewölbeform und der Sohle 6 des Durchlasses 7 so angepaßt, daß allseitig ein Abstand von 5 bis 10 cm zwischen der Gewölbeinnenwand und der äußeren Mantelfläche des Stahlrohres 4 entsteht, so daß der Beton 5 in den Zwischenraum gut verteilt und verdichtet eingebracht werden kann.According to FIG. 2, the bridge is strengthened by drilling the steel dowels 2 into the existing vault 1 at the calculated grid spacing, through the attached steel reinforcement 3, through the inserted steel pipe 4 and the filled-in concrete 5. The steel pipe 4 is of the arch shape and the base 6 of the passage 7 adapted so that on all sides there is a distance of 5 to 10 cm between the inner wall of the vault and the outer circumferential surface of the steel tube 4, so that the concrete 5 can be well distributed and compacted in the intermediate space.

In Figur 3 ist der Querschnitt des Stahlrohres 4 im Bereich der Böschung 11 dargestellt.3 shows the cross section of the steel tube 4 in the region of the slope 11.

Claims (2)

  1. Bridge strengthening for an existing vault made from brick or masonry or from concrete or reinforced concrete in which steel dowels (2) are drilled into the existing vault (1) at a previously defined grid distance, a steel reinforcement (3), for instance a bar mat, is attached to said dowels, a steel pipe (4) which has a shape matching the existing vault (1) and a clearance of 5 to 10 cm on all sides from the intrados of the vault (1) is inserted and the space between is filled with concrete (5).
  2. A method for the manufacture of the bridge strengthening according to claim 1 without interrupting traffic in which steel dowels (2) are drilled into the existing vault (1) at a previously calculated grid distance, a steel reinforcement (3), for instance a bar mat, is attached to the dowels (2), whereupon a steel pipe (4) which has a shape matching the existing vault (1) and a clearance of 5 to 10 cm on all sides from the intrados of the vault (1) is inserted and the space between is filled with concrete (5).
EP92106747A 1992-04-21 1992-04-21 Bridge-strengthening and method for its manufacture Expired - Lifetime EP0567659B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59205252T DE59205252D1 (en) 1992-04-21 1992-04-21 Bridge reinforcement and process for its manufacture
AT92106747T ATE133732T1 (en) 1992-04-21 1992-04-21 BRIDGE REINFORCEMENT AND METHOD FOR MANUFACTURE THEREOF
EP92106747A EP0567659B1 (en) 1992-04-21 1992-04-21 Bridge-strengthening and method for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92106747A EP0567659B1 (en) 1992-04-21 1992-04-21 Bridge-strengthening and method for its manufacture

Publications (2)

Publication Number Publication Date
EP0567659A1 EP0567659A1 (en) 1993-11-03
EP0567659B1 true EP0567659B1 (en) 1996-01-31

Family

ID=8209557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106747A Expired - Lifetime EP0567659B1 (en) 1992-04-21 1992-04-21 Bridge-strengthening and method for its manufacture

Country Status (3)

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EP (1) EP0567659B1 (en)
AT (1) ATE133732T1 (en)
DE (1) DE59205252D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845063B1 (en) * 1995-08-18 2002-06-19 Protec Industrial Ltd. Reinforcing masonry structures
GB2304360B (en) * 1995-08-18 1997-07-30 Protec Ind Ltd A method of reinforcing a masonry arch or bridge
CN108708264A (en) * 2018-05-28 2018-10-26 广西路桥工程集团有限公司 A kind of multi-stage construction method of Long-Span Concrete Filled Steel Tubular Arch Bridges filling concrete
CN112813792A (en) * 2021-02-22 2021-05-18 重庆交通大学 Method for reinforcing arch bridge by combination of UHPC injection and bar planting
CN113585107B (en) * 2021-08-23 2022-10-04 武汉科技大学 A repair and reinforcement device for an ancient building covered bridge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE503825C (en) * 1930-07-26 Emil Moersch Dr Ing Scaffold-free formwork for reinforcing arched bridges on the underside during operation
GB439377A (en) * 1934-08-15 1935-12-05 Szerelmey Ltd Improvements in or relating to means for renovating or restoring stonework
FR801924A (en) * 1936-02-15 1936-08-21 Blaw Knox Cie Fse Metal formwork device
FR2523627A1 (en) * 1982-03-22 1983-09-23 Campenon Bernard METHOD FOR CONFORTING ARCHES OR SIMILAR CONSTRUCTIONS

Also Published As

Publication number Publication date
DE59205252D1 (en) 1996-03-14
EP0567659A1 (en) 1993-11-03
ATE133732T1 (en) 1996-02-15

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