EP0004345A1 - Câble de béton armé précontraint et son utilisation pour la construction d'un pont suspendu - Google Patents

Câble de béton armé précontraint et son utilisation pour la construction d'un pont suspendu Download PDF

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Publication number
EP0004345A1
EP0004345A1 EP79100789A EP79100789A EP0004345A1 EP 0004345 A1 EP0004345 A1 EP 0004345A1 EP 79100789 A EP79100789 A EP 79100789A EP 79100789 A EP79100789 A EP 79100789A EP 0004345 A1 EP0004345 A1 EP 0004345A1
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EP
European Patent Office
Prior art keywords
suspension
reinforced concrete
prestressed reinforced
outer casing
rope
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.)
Granted
Application number
EP79100789A
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German (de)
English (en)
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EP0004345B1 (fr
Inventor
Philipp Dipl.-Ing. Schreck
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of EP0004345A1 publication Critical patent/EP0004345A1/fr
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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
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions

Definitions

  • the invention relates to a prestressed reinforced concrete rope with prestressing steels laid in a concrete body in cladding tubes and also to a method for using prestressed reinforced concrete ropes in the manufacture of a suspension bridge.
  • Such prestressed reinforced concrete ropes are versatile known for bracing or hanging loads and in particular also for the supporting ropes and suspension bars of suspension bridges, since suspension bridges made of prestressed concrete are at least significantly cheaper when it comes to the maintenance of the bridge.
  • the invention has for its object to provide a prestressed reinforced concrete rope in which a part of the support system is a lost formwork, which at the same time largely eliminates the adverse effects of the reinforced concrete due to corrosion. Furthermore, a method for the use of such prestressed reinforced concrete cables for the production of braced or suspended bridges is to be found.
  • this object is achieved according to the invention in that the concrete body is surrounded by an outer casing tube which serves as lost formwork in the production of the concrete body.
  • a further embodiment of the invention consists in the fact that the cladding tubes each consist of a steel tube that can be subjected to tensile and compressive stress, which is optionally made from several steel tube sections connected to one another by screwed sockets. These cladding tubes can be guided in intermediate bulkheads in the outer casing tube. It is also envisaged that the outer casing tube is made of a stainless steel sheet and has tightly closable openings for the section-wise introduction of the concrete.
  • such prestressed reinforced concrete ropes are used for the suspension ropes and suspension ropes of a suspension bridge or for the suspension ropes of cable-stayed bridges.
  • Such pre-stressed reinforced concrete cables manufactured according to the measures of the invention have the advantage that the casing tube and the steel cladding tubes represent the reinforcement for the concrete body, which together with the outer casing tube has a very high buckling stiffness and can practically not bulge.
  • a further advantage is that both the cladding tubes and the prestressing steels drawn into the cladding tubes are very well protected against corrosion and contamination by the use of an outer casing tube and therefore have an intimate connection with the inserted concrete due to the good connecting surfaces.
  • the invention further provides a method for using prestressed reinforced concrete ropes in the manufacture of a suspension bridge, which consists in that for the suspension ropes of the suspension bridge sections of outer casing tubes with bulkhead-guided cladding tubes are suspended from an assembly cable guided over the pylons, the cladding tubes are screwed together and the outer tubes are screwed together or welded so that for the suspension rods of the bridge, the outer casing tubes are suspended from the work platform with bulkhead-guided cladding tubes, that prestressing steels are drawn into the cladding tubes of the suspension cable and suspension rods, and the interior of the outer jacket tube of the suspension cable and, if necessary, the suspension rods are concreted that the suspension ropes and the hanging rods are gradually biased according to the load, that the side members of the bridge either in the free stem or as finished parts are suspended from the hanging bars and serve as assembly webs for the completion of the road surface, and that the suspension cables and the hanging bars are pre-stressed and the cladding pipes are concreted.
  • both the suspension cables and the hanging bars can be pre-stressed to absorb point loads during the manufacture of the longitudinal members and the carriageway slab.
  • FIG. 1 shows a section through a section of a prestressed reinforced concrete rope according to the invention, an assembly state with a retracted prestressing steel and before the introduction of the concrete being shown.
  • annular bulkheads 11 through which cladding tubes 12 are guided along the outer edge region.
  • These cladding tubes are preferably made of steel tubes with a relatively large wall thickness, which are connected in sections to sleeves 14. These sleeves 14 are preferably screwed onto external threads on the cladding tubes.
  • a rod-shaped prestressing steel 16 runs through the cladding tubes in a conventional manner. Depending on the length of the reinforced concrete rope, this is built up in sections, the individual cladding tubes being connected with sleeves and the corresponding sections of the outer jacket tubes being welded. Such a weld is identified by reference number 18.
  • the outer casing tube 10 serves as lost formwork and is filled with concrete in its entirety.
  • the cladding tubes are made of relatively thick walled steel pipes together with the bulkheads 11 represent a reinforcement that already gives the reinforced concrete rope an extraordinary strength and buckling stiffness. After prestressing the prestressing steels 16, the cladding tubes are then injected in a conventional manner, which completes the prestressed reinforced concrete rope.
  • a stainless steel is advantageously used for the outer casing tube, so that after the prestressed prestressed concrete rope is finished, it is optimally protected against corrosion and requires no maintenance to suppress corrosion.
  • the outer jacket pipe can of course also be made of normal steel, which is subsequently coated with a corrosion protection.
  • the use of the outer casing pipe as lost formwork and as protection against corrosion-triggering influences results in a prestressed reinforced concrete rope of extremely high quality, whereby the cladding pipes and prestressing steel are already very well protected against dirt and corrosion during the construction period, so that good connection surfaces are preserved and Concreting a perfect connection between concrete and steel is guaranteed.
  • the outer casing pipes are provided at certain intervals with openings through which the concrete is poured. These openings are closed with a lid, which is preferably screwed on.
  • a side view of a suspension bridge is shown in perspective, in which the prestressed reinforced concrete cables according to the invention are used for the support cables and the suspension rods.
  • the outer casing tubes are provided with a connecting piece 20 for welding or screwing on the outer casing tubes of the hanging rods.
  • an opening 24, which can be closed with a cover 22, is provided, through which an adapter head 26 can be inserted.
  • This clamping head 26 can be provided with an annular shoulder 28 which rests on a collar 30 of a ring 32 which is preferably welded into the outer casing tube.
  • the production of a suspension bridge using the prestressed reinforced concrete cables according to the invention enables the production of a prestressed concrete suspension bridge with relatively simple means for the first time.
  • the pylons are first created and in a conventional manner over the pylons a mounting rope tensioned on which a work platform is suspended.
  • the outer casing tube 10 is suspended in sections with the cladding tubes mounted inside the bulkheads 11 and the cladding tubes are screwed together at the butt joints by means of sleeves.
  • the joint of the outer casing pipe sections is welded. In this way, all metal parts of the suspension cable are mounted, with outer jacket pipe sections being attached to the nodes according to the structure according to FIG. 4.
  • the cladding tubes consisting of steel tubes and their sealing and the welding of the individual outer jacket tube sections, a very stable structure suspended from the pylons is created which is already capable of absorbing considerable loads.
  • the prestressing steels are either inserted into the cladding tubes in sections when the outer jacket tube sections are assembled or, after the outer jacket tube has been completed, are threaded into the cladding tubes which are jointed together.
  • the outer jacket tube provided for the hanging rods with the bulkhead-guided cladding tubes is then suspended and screwed onto the connecting piece 20.
  • the cladding tubes running in this section of the outer jacket tube are screwed into the clamping head 26.
  • the suspended outer casing pipes of the hanging rods are closed at the bottom, so that after the metal parts have been assembled, the outer casing pipe of the suspension cable and that of the hanging rods can now be concreted.
  • suspension cable will be partially pretensioned or the pretension will be increased further.
  • both the suspension cables and the suspension rods are pre-tensioned and the prestressing bars are concreted in by injecting concrete.
  • a suspension bridge manufactured according to the method according to the invention using the prestressed reinforced concrete ropes with an outer casing tube offers the advantage of extraordinary economy due to the lowest maintenance costs when using stainless steel for the outer casing pipes, since the outer casing pipes have an influence on the concrete, be it due to weather conditions or due to other influences such as B. salt water prevented.
  • the process also offers the possibility of producing such a prestressed concrete suspension bridge extremely economically, since the outer casing pipes are used as lost formwork for the supporting cable and the hanging rods .
  • the diameter of the suspension cables in the order of 0.8 to about 1, 2 m and the hanging rods with a diameter of about 0.4 to Can move 0.7 m for such bridge constructions of medium size.
  • a bulkhead 40 is attached, through which the cladding tubes 12 at such a distance from the outside jacket pipe 10 run that the two adjacent bulkheads 40 two sections can be screwed together with bolts 42.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
EP19790100789 1978-03-17 1979-03-15 Câble de béton armé précontraint et son utilisation pour la construction d'un pont suspendu Expired EP0004345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782811759 DE2811759A1 (de) 1978-03-17 1978-03-17 Vorgespanntes stahlbetonseil und verfahren zur anwendung von vorgespannten stahlbetonseilen bei der herstellung einer haengebruecke
DE2811759 1978-03-17

Publications (2)

Publication Number Publication Date
EP0004345A1 true EP0004345A1 (fr) 1979-10-03
EP0004345B1 EP0004345B1 (fr) 1981-12-09

Family

ID=6034775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100789 Expired EP0004345B1 (fr) 1978-03-17 1979-03-15 Câble de béton armé précontraint et son utilisation pour la construction d'un pont suspendu

Country Status (3)

Country Link
EP (1) EP0004345B1 (fr)
AT (1) ATA186279A (fr)
DE (1) DE2811759A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073170A2 (fr) * 1981-08-21 1983-03-02 Freyssinet International (Stup) Dispositif de raccordement incurvé entre deux portions rectilignes d'un câble tendu
WO1998040561A1 (fr) * 1997-03-12 1998-09-17 Eps Schaub Gmbh Dispositif de protection anticorrosion destine a un cable
CN103498589A (zh) * 2013-08-20 2014-01-08 青岛中天斯壮科技有限公司 跨越式柔性拉杆液压张拉器
CN110593124A (zh) * 2019-10-11 2019-12-20 中交二公局第五工程有限公司 一种悬索桥锚碇前锚室顶盖板及其施工方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343352C1 (de) * 1983-11-30 1985-06-05 Max 8228 Freilassing Aicher Verbundkabel für Spannbetonbauwerke, vorzugsweise für Schrägkabelbrücken
CN109654295B (zh) * 2018-12-26 2023-10-20 中交第二公路勘察设计研究院有限公司 弯头接入点临时止推块及其施工方法和设计方法
CN109811657B (zh) * 2019-01-23 2021-11-19 南昌大学 一种预制混凝土构件湿接段预应力管道施工方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2114863B1 (de) * 1971-03-27 1972-08-03 Dyckerhoff & Widmann AG, 8000 München Verankerung eines gespannten Zugglieds für große Belastungen in einem Betonbauteil, z.B. eines Schrägseils einer Schrägseilbrücke
DE2425866A1 (de) * 1974-05-28 1975-12-18 Zueblin Ag Kabel fuer schraegkabelbruecken aus spannbeton

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2114863B1 (de) * 1971-03-27 1972-08-03 Dyckerhoff & Widmann AG, 8000 München Verankerung eines gespannten Zugglieds für große Belastungen in einem Betonbauteil, z.B. eines Schrägseils einer Schrägseilbrücke
DE2425866A1 (de) * 1974-05-28 1975-12-18 Zueblin Ag Kabel fuer schraegkabelbruecken aus spannbeton

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073170A2 (fr) * 1981-08-21 1983-03-02 Freyssinet International (Stup) Dispositif de raccordement incurvé entre deux portions rectilignes d'un câble tendu
EP0073170A3 (en) * 1981-08-21 1983-10-12 Freyssinet International (Stup) Arched connecting element between two rectilinear portions of a tensional cable
WO1998040561A1 (fr) * 1997-03-12 1998-09-17 Eps Schaub Gmbh Dispositif de protection anticorrosion destine a un cable
CN103498589A (zh) * 2013-08-20 2014-01-08 青岛中天斯壮科技有限公司 跨越式柔性拉杆液压张拉器
CN110593124A (zh) * 2019-10-11 2019-12-20 中交二公局第五工程有限公司 一种悬索桥锚碇前锚室顶盖板及其施工方法

Also Published As

Publication number Publication date
EP0004345B1 (fr) 1981-12-09
DE2811759A1 (de) 1979-09-20
ATA186279A (de) 1982-12-15

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