EP2884024B1 - Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier - Google Patents

Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier Download PDF

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Publication number
EP2884024B1
EP2884024B1 EP13197088.1A EP13197088A EP2884024B1 EP 2884024 B1 EP2884024 B1 EP 2884024B1 EP 13197088 A EP13197088 A EP 13197088A EP 2884024 B1 EP2884024 B1 EP 2884024B1
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EP
European Patent Office
Prior art keywords
corner post
ancillary
compressive force
accordance
corner
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Active
Application number
EP13197088.1A
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German (de)
English (en)
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EP2884024A1 (fr
Inventor
Heinrich Dr. Pohlmann
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.)
SAG GmbH
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SAG GmbH
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Publication date
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Priority to EP13197088.1A priority Critical patent/EP2884024B1/fr
Publication of EP2884024A1 publication Critical patent/EP2884024A1/fr
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Classifications

    • 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
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures

Claims (12)

  1. Procédé destiné à la rénovation de pylônes (1) fabriqués en charpente métallique, notamment de pylônes de lignes électriques aériennes haute tension, avec des montants d'angle (2) et au moins une semelle (3), au moins un montant d'angle (4) supplémentaire étant placé à la parallèle ou sensiblement à la parallèle d'un montant d'angle (2), sur ses extrémités (5, 6) ou dans la région de ses extrémités (5, 6), le montant d'angle (4) supplémentaire étant relié par complémentarité de force avec le montant d'angle (2),
    caractérisé en ce
    qu'une force de pression de précontrainte est introduite dans le montant d'angle (4) supplémentaire et la force de pression de précontrainte est appliquée par au moins un système d'application de force (7) agissant sur une extrémité (5, 6) du montant d'angle (4) supplémentaire, après l'application de la pression sur le montant d'angle (4) supplémentaire, le raccourcissement en longueur qui en résulte du montant d'angle (4) supplémentaire étant fixé avec au moins un système de fixation (11) et après l'application de la pression sur le montant d'angle (4) supplémentaire et après la fixation du raccourcissement en longueur du montant d'angle (4) supplémentaire, le système d'application de force (7) étant retiré.
  2. Procédé selon la revendication 1, la force de pression de précontrainte étant appliquée sur l'extrémité inférieure (5) du montant d'angle (4) supplémentaire.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, lors duquel on travaille avec un montant d'angle (4) supplémentaire qui comporte un réceptacle (9) ou un système de réception pour la réception ou pour le montage d'un système d'application de pression (7).
  4. Procédé selon l'une quelconque des revendications 1 à 3, un force de précontrainte comprise entre 20 kN et 1500 kN étant appliquée sur le montant d'angle (4) supplémentaire.
  5. Procédé selon l'une quelconque des revendications 1 à 4, au moins pendant l'application de la pression, le montant d'angle (4) supplémentaire étant maintenu ou guidé à l'aide d'au moins un système de serrage et/ou de retenue (10) sur le montant d'angle (2) associé.
  6. Procédé selon l'une quelconque des revendications 1 à 5, lors de l'application de la pression sur le montant d'angle (4) supplémentaire, l'axe passant par le centre de gravité (S) du montant d'angle (4) supplémentaire se situant dans l'axe médian ou dans l'axe médian longitudinal L du système d'application de force (7) ou du cylindre d'application de force ou se situant sensiblement dans l'axe médian ou dans l'axe médian longitudinal L du système d'application de force ou du cylindre d'application de force.
  7. Procédé selon l'une quelconque des revendications 1 à 6, le système de fixation (11) comportant au moins un tourillon fileté (12) raccordé sur le montant d'angle (4) supplémentaire ou sur une extrémité (5, 6) du montant d'angle (4) supplémentaire, sur le tourillon fileté (12) étant placé au moins un écrou (13) ou un contre-écrou (14) à l'aide desquels on fixe la variation de longueur Δl ou le raccourcissement de longueur.
  8. Procédé selon l'une quelconque des revendications 1 à 7, le système d'application de pression (7) ou le cylindre d'application de pression étant inséré ou placé entre une plaque inférieure (15) de précontrainte et une plaque supérieure (16) de précontrainte, de préférence le tourillon fileté (12) traversant la plaque supérieure (16) de précontrainte.
  9. Procédé selon l'une quelconque des revendications 1 à 8, après l'application de la pression sur le montant d'angle (4) supplémentaire, le montant d'angle (4) supplémentaire avec le montant d'angle (2) associé présent étant assemblés par l'intermédiaire d'éléments d'assemblage tels que des tôles d'assemblage (17) ou similaires.
  10. Procédé selon l'une quelconque des revendications 1 à 9, le montant d'angle (4) supplémentaire inséré présentant le même module d'élasticité et/ou le même coefficient de dilatation thermique que le montant d'angle (2) associé présent.
  11. Procédé selon l'une quelconque des revendications 1 à 10, la force de précontrainte pouvant être vérifiée ou vérifiée ultérieurement à l'aide d'un système d'application de pression (7) ou similaires.
  12. Procédé selon l'une quelconque des revendications 1 à 11, lors duquel on place sur le montant d'angle (4) supplémentaire un système anti-traction (22), lequel système anti-traction (22) comprenant de préférence un écrou (23) et un contre-écrou (24).
EP13197088.1A 2013-12-13 2013-12-13 Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier Active EP2884024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13197088.1A EP2884024B1 (fr) 2013-12-13 2013-12-13 Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13197088.1A EP2884024B1 (fr) 2013-12-13 2013-12-13 Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier

Publications (2)

Publication Number Publication Date
EP2884024A1 EP2884024A1 (fr) 2015-06-17
EP2884024B1 true EP2884024B1 (fr) 2017-02-15

Family

ID=49765370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13197088.1A Active EP2884024B1 (fr) 2013-12-13 2013-12-13 Procédé d'assainissement de mâts fabriqués dans une structure de grille en acier

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EP (1) EP2884024B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865360C (de) * 1940-11-12 1953-02-02 Siemens Ag Zusatz-Versteifung von einseitig belasteten Gittermasten fuer elektrische Leitungen,insbesondere fuer Bahnfahrleitungen
JP3736979B2 (ja) * 1998-12-25 2006-01-18 高周波熱錬株式会社 コンクリート棒状構造体の補強器具および補強方法
SI1335083T1 (sl) * 2002-02-09 2005-12-31 Sag Energieversorgungsloesunge Postopek za saniranje jeklenih visokonapetostnih stebrov, izdelanih iz predalcnih konstrukcij

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2884024A1 (fr) 2015-06-17

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