EP3816370B1 - Vorrichtung und verfahren zur sicherung eines fusses einer struktur, der durch abschneiden entfernt werden kann - Google Patents

Vorrichtung und verfahren zur sicherung eines fusses einer struktur, der durch abschneiden entfernt werden kann Download PDF

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Publication number
EP3816370B1
EP3816370B1 EP20204780.9A EP20204780A EP3816370B1 EP 3816370 B1 EP3816370 B1 EP 3816370B1 EP 20204780 A EP20204780 A EP 20204780A EP 3816370 B1 EP3816370 B1 EP 3816370B1
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EP
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Prior art keywords
securing
foot
link arm
hinge link
hinge
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EP20204780.9A
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English (en)
French (fr)
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EP3816370C0 (de
EP3816370A1 (de
Inventor
Stéphane MOREAU
Maxime GERARD
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.)
RTE Reseau de Transport dElectricite SA
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RTE Reseau de Transport dElectricite SA
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Publication of EP3816370B1 publication Critical patent/EP3816370B1/de
Publication of EP3816370C0 publication Critical patent/EP3816370C0/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • E04H12/348—Arrangements for demolition towers or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2292—Holders used for protection, repair or reinforcement of the post or pole

Definitions

  • the present invention relates to a device for securing a foot of a structure for its dismantling by cutting, as well as a pylon structure comprising at least one such securing device. It also relates to a method for securing and dismantling a foot of a structure.
  • each cutout at the foot of the structure weakens the resulting upper section to be extracted, which is subjected to the winds until it is recovered by the lifting device. This is the reason why such an operation generally requires the prior installation of a device for securing each foot of the structure for its dismantling by cutting.
  • the document KR 101 5369 596 B1 represents the state of the art closest to the subject matter of claim 1.
  • a solution known today for dismantling by cutting in a secure manner a foot of a metal structure shaped as an angle iron, consists in using a set of four steel plates to be bolted to the wings of the angle iron above and below the cutting area.
  • the upper bolts are removed by operators.
  • a pin connected to a cord can be placed on each foot at the location of one of the bolts removed if the weather conditions (i.e. the force of the wind) jeopardize the maintenance of the upper section of the structure to be hoisted.
  • a hinge connection is, in a manner known per se and accepted, a sliding pivot connection, abutting against a base of a hinge connection arm, between this hinge connection arm and a receiving ring into which it fits.
  • a sliding pivot connection abutting against a base of a hinge connection arm, between this hinge connection arm and a receiving ring into which it fits.
  • the integral portion of the hinge link arm includes a hinge base and the hinge link arm that extends up or down from the hinge base.
  • a securing device may further comprise wedges to compensate for an inclination of the foot of the structure with respect to a desired verticality of the main axes of the hinge connecting arm and of a cylindrical hole of the receiving ring.
  • an operating clearance of several millimeters, in particular 6 to 10 mm, is provided between the diameter of the hinge connecting arm and that of the inside of the receiving ring in which it is designed to fit. insert.
  • each of the fastening means comprises at least one bolt.
  • a securing device may further comprise a retaining ring and means for fixing this retaining ring to a portion of the hinge connecting arm extending beyond the retaining ring. reception in which it is inserted for maintaining this insertion.
  • a pylon structure comprising several feet fixed to the ground and, for each foot, at least one securing device according to the invention.
  • a pylon structure according to the invention may more precisely comprise four feet shaped as angle irons and two securing devices according to the invention arranged respectively on the two flanges of each angle iron.
  • the structural foot 10 partially illustrated in the figure 1 is shaped as an angle iron with two longitudinal flanges 12A and 12B. It is for example metallic and constitutes one of the elements of an electric pylon structure for its anchoring to the ground.
  • a first securing device 14A for its removal by cutting is fixed on either side of a cutting zone Z on the wing 12A. More precisely, a lower portion of this securing device 14A, consisting of a hinge base 16A and a hinge connecting arm 18A which extends upwards from the hinge base 16A, is fixed on an outer face of the wing 12A by bolting (not visible on the figure 1 ) of the hinge base 16A below the cutout zone Z.
  • a wedge 20A for example a wedge wedge, may be provided between the wing 12A and the hinge base 16A to adjust the orientation of the latter by so as to ensure the verticality of the 18A hinge link arm.
  • An upper portion of the securing device 14A comprising a receiving ring 22A by insertion of the hinge connecting arm 18A, is fixed to the same outer face of the wing 12A by bolting above the cutout zone.
  • a wedge 24A for example a wedge wedge, may be provided between the wing 12A and the receiving ring 22A to adjust the orientation of the latter in accordance with that of the hinge link arm 18A.
  • the hinge base 16A is a steel part having a lateral foot for fixing to the wing 12A, pressed against the wedge 20A, and an upper hollow part spaced apart from the wing 12A and in profile flattened hollow cylinder to receive a corresponding flattened lower end of the hinge link arm 18A.
  • the lateral foot of the hinge base 16A takes for example the form of a plate integral with lateral reinforcements extending from the hollow profile of the upper receiving part of the hinge connecting arm 18A. This plate is pierced with at least one hole, for example at least two, to achieve the fixing by bolting against the wing 12A.
  • the hinge connecting arm 18A is itself a cylindrical steel tube, the lower end of which is fixed in the upper hollow part of the hinge base 16A by insertion and bolting. It is advantageously sized so that, when it is inserted into the receiving ring 22A, it resists shearing and bending against any pressure exerted by the upper section resulting from a cutout of the foot of the structure 10. It is also sufficiently long above beyond the receiving ring 22A to oppose any tilting of this upper section.
  • the receiving ring 22A is a steel part having a lateral foot for attachment to the wing 12A, pressed against the wedge 24A, and a lower part spaced with respect to the wing 12A comprising the cylindrical hole through which the connecting arm passes of hinge 18A.
  • the lateral foot of the ring 22A takes for example the form of an extension in the form of a plate upwards in which is drilled at least one hole, for example at least two, to carry out the fixing by bolting against the wing 12A.
  • the separated parts of the hinge base 16A and of the receiving ring 22A make it possible to release the cutout zone Z which is situated between the two fixing plates by bolting of the hinge base 16A and of the receiving ring 22A.
  • an operating clearance of several millimeters is provided between the outer diameter of the hinge connecting arm 18A and that of the cylindrical hole intended to receive it in the receiving ring 22A. This play facilitates the separation, by vertical lifting, of the lower and upper portions of the securing device 14A.
  • the securing device 14A comprises a retaining ring 26A and means for fixing this retaining ring 14A by bolting around an upper portion of the hinge connecting arm 18A which extends above beyond the receiving ring 22A.
  • This retaining ring 26A fulfills a function of securing the insertion of the hinge connecting arm 18A into the receiving ring 22A.
  • a second securing device 14B is fixed on either side of the cutout zone Z on the wing 12B. It is identical to the first and comprises elements 16B, 18B, 20B, 22B, 24B and 26B respectively identical to elements 16A, 18A, 20A, 22A, 24A and 26A.
  • picture 2 schematically represents a horizontal section of a pylon structure with several anchoring feet fixed to the ground and at least one securing device such as that of the figure 1 per foot.
  • FIG. 1 it illustrates the case of a metal electrical pylon with four feet anchored to the ground, referenced respectively 10 1 , 10 2 , 10 3 and 10 4 .
  • Each of these feet is identical to foot 10 of the figure 1 , that is to say in the form of an angle iron with two wings: 12A, and 12B 1 for the foot 10 1 , 12A 2 and 12B 2 for the foot 10 2 , 12A 3 and 12B 3 for the foot 10 3 , 12A 4 and 12B 4 for foot 10 4 .
  • Two securing devices identical to those 14A, 14B of the figure 1 are respectively arranged and fixed on the two wings of each foot, i.e.
  • the secure structure illustrated on the figure 2 can be subjected to constraints such as a wind coming from the right and exerting a pressure distributed frontally on the securing devices 14A2, 14B2, 14A3, 14B3 surrounded (ie front face subjected to the wind).
  • This wind is likely to tilt the structure at an angle ⁇ illustrated in the picture 3 (according to side view A of the figure 2 ) after cutting anchoring feet along a horizontal plane P chosen in the cutout zone Z of each foot.
  • the picture 3 makes it possible to visualize an angle ⁇ defining the angular difference of each ground anchor foot with respect to the vertical.
  • This gap is generally referred to as the "fruit" of the pylon. It is this gap that justifies the addition of wedge wedges for each securing device, the hinge connecting arm and the inner axis of the receiving ring must advantageously be oriented vertically to facilitate dismantling by vertical lifting, possibly by helicopter .
  • the cutting zone Z is selected on the foot of the angle structure 10. Two holes are dug on the first wing 12A of the angle iron above the cutout zone Z, two on the second wing 12B of the angle iron above the cutout zone Z, two on the first wing 12A of the angle iron below the Z cutout area and two on the second wing 12B of the angle iron below the Z cutout area.
  • the two hinge bases 16A and 16B are respectively fixed by bolting to the two wings 12A and 12B of angles under the cut-out zone Z thanks to the four holes previously drilled under this zone Z, if necessary with interposition of wedges 20A and 20B corners.
  • the two receiving rings 22A and 22B are respectively fixed by bolting to the two wings 12A and 12B of angles above the cut-out zone Z thanks to the four holes previously drilled above this zone Z if necessary with the interposition of corner wedges 24A and 24B.
  • the two receiving rings 22A and 22B are positioned above the two hinge bases 16A and 16B so that their respective holes intended to receive the two hinge connecting arms 18A and 18B are coaxial.
  • the two hinge connecting arms 18A and 18B are respectively inserted into the coaxial holes of the elements 16A, 22A and 16B, 22B. They are respectively fixed by bolting their lower ends into the two hinge bases 16A and 16B.
  • the positioning and fixing of the securing devices 14A and 14B above and below the cutout zone Z can be considered as completed.
  • the next step 108 is a step of cutting the foot of the structure in the cutting zone Z while the securing devices 14A and 14B are put in place and fixed so that their two receiving rings 22A and 22B are respectively crossed by their two hinge link arms 18A and 18B.
  • step 110 the two fasteners are secured by respective bolting of the two retaining rings 26A and 26B around the portions of the hinge connecting arms 18A and 18B extending beyond the receiving rings 22A and 22B in which they are inserted.
  • This optional step is proposed after step 108 of cutting, but it could also be executed before. It makes it possible to pass from a "stacked" state of the two sections of the structure foot 10 after cutting such as that illustrated for step 108, to a "secure" state of the two sections of the structure foot 10 after cutting such as that shown for step 110.
  • the two retaining rings 26A and 26B are unbolted and removed if necessary by at least one operator during an optional step 112
  • the maintenance of the latter is not jeopardized thanks to the cooperation between the hinge link arms 18A, 18B and the retaining rings 22A and 22B in which they remain engaged during the arrival of the helicopter.
  • step 114 can begin. Dismantling is done in such a way as to disengage the hinge connecting arms 18A, 18B from the receiving rings 22A, 22B by vertical elevation of the latter with the upper section.
  • a securing device such as the one described above makes it possible to envisage the effective and secure dismantling of any heavy structure to be cut in sections which must successively be removed using a machine connected to the ground such as a crane or a flying machine such as a helicopter.
  • a securing device can also be limited in weight, in manufacturing costs and be reused on several construction sites.
  • the securing devices 14A and 14B could be mounted in an inverted direction on the outer faces of the wings 12A and 12B of the foot of the structure 10 in angle iron.
  • the base and the hinge connecting arm 16A, 18A respectively the base and the hinge connecting arm 16B, 18B
  • the receiving ring 22A respectively the receiving ring 22B
  • This configuration is however less advantageous because the upper section which is airlifted and evacuated is generally then placed on the ground without any particular precautions. This has the effect of risking rapid damage to the male part of the securing device (ie the hinge connecting arm), whereas in the configuration of the figure 1 , 3 And 4 this risk does not exist and allows reuse of the security device.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Foundations (AREA)
  • Ladders (AREA)

Claims (10)

  1. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur für dessen Abbau durch Abschneiden, Folgendes beinhaltend:
    - einen unteren Abschnitt (16A, 18A, 16B, 18B), der mit Befestigungsmitteln am Fuß der Struktur unterhalb eines Abschneidebereichs (Z) des Fußes der Struktur versehen ist; und
    - einen oberen Abschnitt (22A, 22B), der mit Befestigungsmitteln am Fuß der Struktur oberhalb des Abschneidebereichs (Z) versehen ist;
    wobei diese beiden Abschnitte zwei unterschiedliche Teile sind, und:
    - einer der unteren und oberen Abschnitte (16A, 18A, 16B, 18B, 22A, 22B) fest mit einem Angelverbindungsarm (18A, 18B) durch Befestigen eines Endes des Angelverbindungsarmes an diesem unteren oder oberen Abschnitt verbunden ist;
    und
    - der andere der unteren und oberen Abschnitte (16A, 18A, 16B, 18B, 22A, 22B) fest mit einem Aufnahmering (22A, 22B) des Angelverbindungsarmes verbunden ist, wobei der Angelverbindungsarm und der Aufnahmering für ein Einführen und Abnehmen durch Gleiten des Angelverbindungsarmes im Aufnahmering gestaltet sind.
  2. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur nach Anspruch 1, wobei der fest mit dem Angelverbindungsarm (18A, 18B) verbundene Abschnitt eine Angelbasis (16A, 16B) und den Angelverbindungsarm (18A, 18B) beinhaltet, der sich aus der Angelbasis nach oben oder nach unten erstreckt.
  3. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur nach Anspruch 1 oder 2, welche weiter Winkelkeile (20A, 20B, 24A, 24B) beinhaltet, um eine Neigung (β) des Fußes der Struktur (10) in Bezug auf eine gewünschte Vertikalität der Hauptachsen des Angelverbindungsarmes (18A, 18B) und eines zylindrischen Loches des Aufnahmeringes (22A, 22B) auszugleichen.
  4. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur nach einem der Ansprüche 1 bis 3, wobei ein betriebliches Spiel von mehreren Millimetern, insbesondere von 6 bis 10 mm, zwischen dem Durchmesser des Angelverbindungsarmes (18A, 18B) und jenem des Inneren des Aufnahmeringes (22A, 22B), in den eingeführt zu werden er gestaltet worden ist, vorgesehen ist.
  5. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur nach einem der Ansprüche 1 bis 4, wobei jedes der Befestigungsmittel mindestens einen Bolzen beinhaltet.
  6. Vorrichtung (14A, 14B) zur Sicherung eines Fußes (10) einer Struktur nach einem der Ansprüche 1 bis 5, welche weiter einen Haltering (26A, 26B) und Mittel zum Befestigen dieses Halteringes an einem Abschnitt des Angelverbindungsarmes (18A, 18B) beinhaltet, der sich über den Aufnahmering (22A, 22B) hinaus erstreckt, in den er zum Halten dieser Einführung eingeführt ist.
  7. Standpfeilerstruktur, welche mehrere Füße (101, 102, 103, 104) beinhaltet, die am Boden befestigt sind, und für jeden Fuß mindestens eine Vorrichtung zur Sicherung (14A1, 14B1, 14A2, 14B2, 14A3, 14B3, 14A4, 14B4) nach einem der Ansprüche 1 bis 6.
  8. Standpfeilerstruktur nach Anspruch 7, welche vier als Winkeleisen ausgeführte Füße (101, 102, 103, 104) und zwei Vorrichtungen zur Sicherung (14A1, 14B1, 14A2, 14B2, 14A3, 14B3, 14A4, 14B4) nach einem der Ansprüche 1 bis 6 beinhaltet, die jeweils auf den beiden Flügeln (12A1, 12B1, 12A2, 12B2, 12A3, 12B3, 12A4, 12B4) eines jeden Winkeleisens angeordnet sind.
  9. Verfahren zur Sicherung und zum Abbauen eines Fußes (10) einer Struktur, die folgenden Schritte beinhaltend:
    - Auswählen (100) eines Abschneidebereichs (Z) an dem Fuß (10) der Struktur;
    - Anbringen und Befestigen (102, 104, 106, 110) mindestens einer Vorrichtung zur Sicherung (14A, 14B) oberhalb und unterhalb des ausgewählten Abschneidebereichs (Z) ;
    - Abschneiden (108) des Fußes (10) der Struktur in dem ausgewählten Abschneidebereich (Z);
    - Abbauen (112, 114) durch Anheben des Teils des Fußes (10) der Struktur, der sich oberhalb des Abschneidebereichs (Z) befindet;
    - das Befestigen (102, 104, 106, 110) erfolgt mithilfe mindestens einer Vorrichtung zur Sicherung (14A, 14B) nach einem der Ansprüche 1 bis 6, derart, dass der Aufnahmering (22A, 22B) von dem Angelverbindungsarm (18A, 18B) durchquert wird; und
    - das Abbauen (112, 114) erfolgt derart, dass der Angelverbindungsarm (18A, 18B) durch Gleiten des Angelverbindungsarmes in dem Aufnahmering aus dem Aufnahmering (22A, 22B) herausgezogen wird.
  10. Verfahren zur Sicherung und zum Abbauen eines Fußes (10) einer Struktur nach Anspruch 9, durch Verwenden mindestens einer Vorrichtung zur Sicherung (14A, 14B) nach Anspruch 6, wobei:
    - das Befestigen (102, 104, 106, 110) der Vorrichtung zur Sicherung (14A, 14B) das Befestigen (110) durch Verschrauben des Halteringes (26A, 26B) mit dem Abschnitt des Angelverbindungsarmes (18A, 18B), der sich über den Aufnahmering (22A, 22B) hinaus erstreckt, in den er eingeführt ist, beinhaltet; und
    - das Abbauen (112, 114) einen vorab durchgeführten Schritt des Abnehmens (112) des Halteringes (26A, 26B) durch Abschrauben, beispielsweise innerhalb einer vorbestimmten Frist vor dem Anheben des Teils des Fußes (10) der Struktur beinhaltet, der sich oberhalb des Abschneidebereichs (Z) befindet.
EP20204780.9A 2019-10-30 2020-10-29 Vorrichtung und verfahren zur sicherung eines fusses einer struktur, der durch abschneiden entfernt werden kann Active EP3816370B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1912211A FR3102780B1 (fr) 2019-10-30 2019-10-30 Dispositif et procédé de sécurisation d’un pied de structure à démonter par découpe

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Publication Number Publication Date
EP3816370A1 EP3816370A1 (de) 2021-05-05
EP3816370B1 true EP3816370B1 (de) 2023-07-12
EP3816370C0 EP3816370C0 (de) 2023-07-12

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750662A (en) * 1987-02-10 1988-06-14 Larry And Associates Pipe welding alignment tool
JPH08163729A (ja) * 1994-12-01 1996-06-21 Kansai Electric Power Co Inc:The 鋼管鉄塔の主柱材取替装置
KR101539596B1 (ko) * 2015-03-04 2015-07-28 배재범 가공 배전선로의 전신주 교체 방법이 적용된 장치

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EP3816370C0 (de) 2023-07-12
EP3816370A1 (de) 2021-05-05
FR3102780B1 (fr) 2021-12-03

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