EP0878581A1 - Elément de support et procédé de fabrication d'un élément de support - Google Patents

Elément de support et procédé de fabrication d'un élément de support Download PDF

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Publication number
EP0878581A1
EP0878581A1 EP98108510A EP98108510A EP0878581A1 EP 0878581 A1 EP0878581 A1 EP 0878581A1 EP 98108510 A EP98108510 A EP 98108510A EP 98108510 A EP98108510 A EP 98108510A EP 0878581 A1 EP0878581 A1 EP 0878581A1
Authority
EP
European Patent Office
Prior art keywords
steel
support element
bodies
element according
concrete
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.)
Withdrawn
Application number
EP98108510A
Other languages
German (de)
English (en)
Inventor
Georg-Andreas Huber
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.)
Noell Stahl- und Maschinenbau GmbH
Original Assignee
Noell Stahl- und Maschinenbau 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
Priority claimed from DE1997119409 external-priority patent/DE19719409C2/de
Application filed by Noell Stahl- und Maschinenbau GmbH filed Critical Noell Stahl- und Maschinenbau GmbH
Publication of EP0878581A1 publication Critical patent/EP0878581A1/fr
Withdrawn legal-status Critical Current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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • 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
    • E01D2101/28—Concrete reinforced prestressed
    • E01D2101/285—Composite prestressed concrete-metal

Definitions

  • the invention relates to a support element according to the preamble of 1. and 2. claim and a procedure for producing a Support element.
  • the invention is applicable wherever support elements, preferably Bridges with a low weight, a low construction height, without additional ones Formwork and without scaffolding, with low investment costs, longer Service life and high security against failure and short Construction times and without concrete post-treatment must be created.
  • Reinforced concrete or solid bridges high dead weight, high formwork costs and thus long construction times, cracking due to hydration, shrinkage and Creeping of the concrete, which results in corrosion of the reinforcement and thus the service life is very limited, with the spans due to the dead weight, are limited, the concrete surface, for the most part exposed, dries out very quickly, which in turn increases shrinkage Consequence.
  • prestressed concrete bridges Due to their high weight, prestressed concrete bridges also have one limited span, with a relatively high effort in production is available. Cracking also occurs with this type of bridge. The Prestressing against the hardened concrete is imprecise and causes problems with the corrosion protection of the reinforcement.
  • the support element is produced using a method according to the 10th claim.
  • the steel body can be in the form of U-shapes lying on the side be formed, it being advantageous for the filling, the lower and / or the upper limit of the U-shape is bent downwards / upwards to execute.
  • the invention is characterized in that create if necessary Reinforcement elements between and above the hollow body or pipes are arranged.
  • the fresh concrete can be compacted by means of external vibrators or vibrating bodies, which on the Shell outer skin is attached, the filling preferably in Field center, d. H. started in the middle between two supports (supports) should be, if the static calculation is no other concreting sequence demands.
  • the steel body can be designed as a hollow body, in particular as a tube Water through a welded inlet or outlet valve on each each pipe end in the tightly welded cavity of the same be initiated.
  • a presetting can be made by introducing water additional traffic loads or a comparison of different ones Temperature expansion when the hydration process begins respectively.
  • the tension wires 3 are fixed in position with each other using a template and with Wedge anchor attached to the respective beam end (Fig. 3).
  • the Formwork profile 5 has the task of steel tubes 1 and transverse bulkheads 2 existing steel structure to seal down and the immediate Pick up and carry the load from the fresh concrete.
  • the Transverse bulkheads 2 have a longitudinal distance of 3 m in the present example.
  • Above the steel tubes 1, the transverse reinforcement 4 is in the construction brought in.
  • the tensioning wires 3 run in the Edge elements obliquely upwards, which is a bracing, especially the middle range, caused upwards.
  • the concrete 10 is filled in by means of Concrete pump from the middle between two supports (supports). Of the Concrete is made by means of vibrating bodies, which are on the shell outer skin attached, shaken or compacted with flat vibrators. By the Introducing the fresh concrete increases the tensile forces in the steel wires 3.
  • the steel wires 3 are designed as ribbed steel wires, which results has that higher bond between the hardened concrete 10 and Tension wires 3 prevail.
  • the steel construction that is created in this way is included a reinforcement 4, 6 provided between the cross beams 11, the steel bodies 1 and the transverse bulkheads 2 is arranged. Will continue a formwork profile 5 is arranged between and under the steel bodies 1, which is used to hold the filling compound.
  • the stators 7 continue to be on the cross members 11 or their holding plates and the side guide 8 arranged for the carrier for Magnetic trains are required.
  • the figure continues to show next to the flaccid reinforcement 4 in the transverse direction also flaccid reinforcement 6 in Longitudinal direction.
  • FIG. 7 shows the support element after it is filled with a filling compound 10 Concrete has been backfilled.
  • This filling compound is in the free cavities backfilled and solidified, after which the concrete hardens within 28 Days.
  • the support element is advantageously provided with a cover 12 provided. After the curing of the support element is done, you can the tension wires 3 are released from the ends of the steel beams.
  • Support elements 8 to 10 show the design of the support element as Lightweight construction element also as a carrier for magnetic railway trains.
  • These Support elements have the transverse bulkhead 2 between the steel bodies 1 much smaller area, with bushings 9 for the Tension wires 3 below the transverse bulkhead 2 are dispensed with, as here executed, a recess is provided in the transverse bulkheads 2.
  • the Cross members 11 are in turn arranged above the steel body 1.
  • FIG. 9 As shown in FIG. 9, side guides 8 are in turn on these cross members 11 and stators 7 are arranged, inside and above the cross member 11 slack reinforcement 4 and create longitudinal reinforcement 6 are introduced. A reinforcement 4 is then only between the steel bodies 1 required, between which the formwork profile 5 is also arranged.
  • This support element which with filling compound 11 and cover 12 in FIG. 10 is shown, brings an essential with the same function Weight saving compared to the support element, which is shown in Fig. 7.
  • the support element shown in FIG. 11 has an open steel body 1 on, which is welded to the formwork profile 5. All carriers manufactured according to this principle are made according to customary methods of the tendon guide. In connection with that Lead wires 3 also depending on the support points 13.
  • Fig. 3 shows a longitudinal view of a support element and the course of the Tension wires (tendon guide) within the element at a Edition with two support points 13 according to the Langer principle Bar.
  • the deflection of the tension wires 9 is advantageously carried out on the Transverse bulkheads 2.
  • the support element according to the invention has a low weight, low Construction height, requires no additional formwork, none Empty scaffolding, with low investment costs and low maintenance costs are connected, whereby the service life increases and increased safety against the failure condition with shorter construction times is guaranteed.
  • a Post-treatment of the concrete does not have to take place, since the concrete outer surfaces do not can dry out, which leads to an activation of the crack formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Bridges Or Land Bridges (AREA)
EP98108510A 1997-05-12 1998-05-11 Elément de support et procédé de fabrication d'un élément de support Withdrawn EP0878581A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19719409 1997-05-12
DE1997119409 DE19719409C2 (de) 1997-05-12 1997-05-12 Tragelement und Verfahren zum Herstellen eines Tragelementes
DE29713336U 1997-07-26
DE29713336U DE29713336U1 (de) 1997-05-12 1997-07-26 Tragelement

Publications (1)

Publication Number Publication Date
EP0878581A1 true EP0878581A1 (fr) 1998-11-18

Family

ID=26036413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98108510A Withdrawn EP0878581A1 (fr) 1997-05-12 1998-05-11 Elément de support et procédé de fabrication d'un élément de support

Country Status (2)

Country Link
EP (1) EP0878581A1 (fr)
DE (1) DE29713336U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113981829A (zh) * 2021-11-12 2022-01-28 王壹帆 一种预应力砼企口缝的施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343320A (en) * 1965-06-23 1967-09-26 Krajcinovic Peter Construction of channeled steel beams
DE1931431A1 (de) * 1969-06-20 1970-12-23 Hoesch Ag Fahrbahntafel,insbesondere fuer Stadthochstrassen
DE2203126A1 (de) * 1972-01-24 1973-08-09 Polensky & Zoellner Bauteil, insbesondere brueckenueberbau aus spannbeton
EP0010733A1 (fr) * 1978-10-27 1980-05-14 Stephen Parazader Eléments de voie de guidage pour voies surélevées

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343320A (en) * 1965-06-23 1967-09-26 Krajcinovic Peter Construction of channeled steel beams
DE1931431A1 (de) * 1969-06-20 1970-12-23 Hoesch Ag Fahrbahntafel,insbesondere fuer Stadthochstrassen
DE2203126A1 (de) * 1972-01-24 1973-08-09 Polensky & Zoellner Bauteil, insbesondere brueckenueberbau aus spannbeton
EP0010733A1 (fr) * 1978-10-27 1980-05-14 Stephen Parazader Eléments de voie de guidage pour voies surélevées

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113981829A (zh) * 2021-11-12 2022-01-28 王壹帆 一种预应力砼企口缝的施工方法

Also Published As

Publication number Publication date
DE29713336U1 (de) 1997-09-25

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