EP3795749B1 - Échafaudage et procédé de support de moule de coulée d'un pont - Google Patents

Échafaudage et procédé de support de moule de coulée d'un pont Download PDF

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Publication number
EP3795749B1
EP3795749B1 EP20153082.1A EP20153082A EP3795749B1 EP 3795749 B1 EP3795749 B1 EP 3795749B1 EP 20153082 A EP20153082 A EP 20153082A EP 3795749 B1 EP3795749 B1 EP 3795749B1
Authority
EP
European Patent Office
Prior art keywords
scaffold
structures
truss
vertical
vertical support
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.)
Active
Application number
EP20153082.1A
Other languages
German (de)
English (en)
Other versions
EP3795749A1 (fr
EP3795749C0 (fr
Inventor
Anssi Koivumäki
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.)
Sepa Oy
Original Assignee
Sepa Oy
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Publication date
Application filed by Sepa Oy filed Critical Sepa Oy
Publication of EP3795749A1 publication Critical patent/EP3795749A1/fr
Application granted granted Critical
Publication of EP3795749C0 publication Critical patent/EP3795749C0/fr
Publication of EP3795749B1 publication Critical patent/EP3795749B1/fr
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Classifications

    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
    • E04G1/08—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section secured together by bolts or the like penetrating the members
    • E04G1/10—Timber-work constructions
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • 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

Definitions

  • the invention relates to a scaffold for supporting a casting mould for a cast-in-situ reinforced concrete bridge.
  • This type of a scaffold is also referred to as bridge falsework.
  • the scaffold is assembled for the time of bridge construction and dismantled after the bridge has been cast.
  • the invention relates to a method for supporting a casting mould for a cast-in-situ reinforced concrete bridge.
  • a bridge scaffold or falsework is a structure built for a temporary duration to support the structure of a bridge under construction.
  • the bridge under construction is supported for the time of the construction work.
  • the scaffold comprises scaffold foundations, a large number of vertical posts, diagonal and horizontal supports to prevent the vertical posts from buckling and tilting, and also top beams supported on the upper ends of the vertical posts, on which top beams the bridge casting mould is then built to be supported.
  • the disadvantage of the currently used falsework is the requirement for a large amount of materials and construction work at the installation site.
  • Documents DE1257818B and DE1101477B disclose some scaffold constructions.
  • the idea of the invention is to provide a new and improved support scaffold for a bridge and a method for supporting a casting mould.
  • the scaffold is intended to support a casting mould for a cast-in-situ reinforced concrete bridge and it has been manufactured at least mainly from wood material and comprises vertical and horizontal supports. Further, the scaffold comprises several vertical support structures spaced from each other in the longitudinal direction of the bridge. Between these vertical support structures there are side by side several separate truss structures arranged along the longitudinal direction of the bridge. Said truss structures are wooden. Further, each truss structure is supported to the vertical structures only at support points located at the longitudinal ends of the truss structure, such that no separate vertical supports supported to the ground are arranged in the portions between the support points. In other words, the trusses are only supported by their ends.
  • the advantage of the proposed configuration is that building of the bridge scaffold may become quicker by using prefabricated truss structures.
  • the truss structures may be manufactured under good factory conditions, whereby their quality will be good and their load bearing capacity guaranteed. Due to the truss construction, the bridge scaffold may comprise less timber than before, which lowers the cost of the scaffold.
  • the scaffold as proposed is subject to a lower wind load because of the smaller surface area of the support structures.
  • the upper beam of each of the truss structures is configured to constitute a support surface for the casting mould, such that no separate horizontal support beams are arranged in the scaffold.
  • said truss structure has a triangular structure comprising a horizontal upper beam and two diagonal downwardly oriented side beams providing the triangular shape.
  • the triangular truss structure bears force particularly well, thus providing a structure which is strong in relation to its weight and also simple.
  • the idea of one embodiment is that at the support point between the truss structure and the vertical structure there is a pressure plate to distribute the vertical load over a larger surface area.
  • the pressure plate may be, for example, a piece of plywood plate.
  • the vertical load between the structures i.e. the so-called stamp pressure, may be distributed over a larger surface area by means of nail plates.
  • the triangular truss structure is a roof truss turned upside down.
  • truss structures of various sizes are manufactured for stock at the factory and are applied to bridge construction site scaffolds case-specifically. Already a few different trusses are sufficient to cover a majority of different types of scaffolds.
  • the truss structure is made from normal strength graded sawn timber.
  • the idea of one embodiment is a method of building a support scaffold for the time of bridge construction using several truss structures supported between vertical structures.
  • the idea of one embodiment is that the proposed configuration is suited, in addition to the proposed application to new constructions, also to bridge renovation projects where a support scaffold for the structure is also necessary to be built adjacent to or in connection with an existing bridge.
  • Fig. 1 illustrates a prior art scaffold 1 comprising a large number of vertical posts 2, horizontal posts 3 and diagonal supports 4. The building of this type of a structure is laborious and slow.
  • Fig. 2 illustrates the new scaffold 1, wherein truss structures 6 are arranged between vertical support structures 5 to support an upper casting mould 7.
  • the vertical support structures 5 may be casting towers 8 which are temporary structures.
  • the casting towers 8 may comprise vertical wood planks 10, horizontal wood planks 11, and diagonal supports 12.
  • the truss structures 6 supported between the casting towers 8 comprise an upper beam 13 and diagonal downwardly oriented side beams 14. Between the beams 13 and 14 there are several diagonal and vertical intermediate beams to support the structure.
  • the upper surface of the upper beam 13 functions as a support surface for the casting mould 7, and at the ends of the upper beam 13 there are support surfaces at which the truss structure 6 is supported on support surfaces of the casting towers 8. Between these support surfaces there may be members distributing the surface pressure over a larger surface area.
  • Fig. 4 illustrates a rectangular truss structure 6 supported between vertical support posts 15 which is not part of the present invention.
  • the support posts 15 may be piles which may have been driven into ground 16, and they function as the vertical support structure 5.
  • the truss structure 6 may comprise upper beams 13a, 13b and diagonal supports 17 between the beams. Between the upper ends of the support posts 15 and the truss structure 6 there are support points 18 which may be provided with pressure plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (6)

  1. Échafaudage (1) pour supporter un moule de coulée (7) pour un pont en béton armé coulé sur place ;
    l'échafaudage (1) ayant été fabriqué au moins principalement en bois et comprenant des supports verticaux et horizontaux ;
    et
    l'échafaudage (1) comprenant plusieurs structures de support verticales (5) espacées les unes des autres dans la direction longitudinale du pont ;
    entre les structures de support verticales (5) se trouvant côte à côte plusieurs structures en treillis séparées (6) agencées le long de la direction longitudinale du pont ;
    les structures en treillis (6) sont en bois ; et
    chaque structure en treillis (6) étant supportée sur les structures de support verticales (5) uniquement à des points de support (18) situés aux extrémités longitudinales de la structure en treillis, de sorte qu'aucun support vertical séparé supporté sur le sol (16) ne soit agencé dans les parties entre les points de support (18) ;
    caractérisé en ce que
    chaque structure en treillis (6) présente une structure triangulaire comprenant une poutre supérieure horizontale (13) et deux poutres latérales diagonales orientées vers le bas (14) fournissant la forme triangulaire pour former une ferme de toit retournée.
  2. Échafaudage selon la revendication 1, caractérisé en ce que
    une poutre supérieure (13) de chacune des structures en treillis (6) est configurée pour constituer une surface de support pour le moule de coulée (7), de sorte qu'aucune poutre de support horizontale séparée ne soit agencée dans l'échafaudage (1).
  3. Échafaudage selon la revendication 1 ou 2, caractérisé en ce que
    au point de support (18) entre la structure en treillis (6) et la structure de support verticale (5) se trouve une plaque de pression configurée pour répartir la charge verticale appliquée sur l'échafaudage (1) sur une surface plus importante entre la structure en treillis (6) et la structure de support verticale (5).
  4. Procédé de support d'un moule de coulée (7) pendant la construction d'un pont,
    le procédé comprenant le support du moule de coulée (7) au sol (16) au moyen d'un échafaudage (1) ;
    en ce que l'échafaudage (1) est pourvu de plusieurs structures de support verticales (5) espacées les unes des autres dans la direction longitudinale du pont ;
    l'échafaudage (1) est pourvu de plusieurs structures en treillis en bois (6) ;
    plusieurs structures en treillis (6) séparées sont agencées entre les structures de support verticales (5) côte à côte ;
    les extrémités longitudinales de chacune des structures en treillis (6) sont supportées par les structures de support verticales (5) ; et
    les parties entre les structures de support verticales (5) dans l'échafaudage (1) sont configurées sans supports verticaux séparés supportés au sol (16) ;
    caractérisé par :
    l'utilisation de l'échafaudage (1) selon l'une quelconque des revendications précédentes 1 à 3.
  5. Procédé selon la revendication 4, caractérisé en ce que
    les structures de support verticales (5) sont également fabriquées à partir de matériau de bois, de telle sorte que l'ensemble de l'échafaudage (1) soit fabriqué au moins principalement à partir de bois.
  6. Procédé selon la revendication 4 ou 5, caractérisé en ce que
    l'échafaudage (1) est pourvu d'un passage libre sous la structure en treillis (6).
EP20153082.1A 2019-09-19 2020-01-22 Échafaudage et procédé de support de moule de coulée d'un pont Active EP3795749B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FIU20194120U FI12557U1 (fi) 2019-09-19 2019-09-19 Teline

Publications (3)

Publication Number Publication Date
EP3795749A1 EP3795749A1 (fr) 2021-03-24
EP3795749C0 EP3795749C0 (fr) 2023-09-20
EP3795749B1 true EP3795749B1 (fr) 2023-09-20

Family

ID=69147283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20153082.1A Active EP3795749B1 (fr) 2019-09-19 2020-01-22 Échafaudage et procédé de support de moule de coulée d'un pont

Country Status (4)

Country Link
EP (1) EP3795749B1 (fr)
ES (1) ES2963660T3 (fr)
FI (1) FI12557U1 (fr)
PL (1) PL3795749T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101477B (de) * 1959-06-23 1961-03-09 Gruen & Bilfinger Ag Verfahren zum Ausgleichen der Verformung von Lehrgeruesten
DE1234759B (de) * 1962-12-10 1967-02-23 Polensky & Zoellner Verfahren zum Einschalen der einzelnen UEberbaufelder einer vielfeldrigen Bruecke
DE1257818B (de) * 1964-07-02 1968-01-04 Ast Ed Ing & Co Verfahren zum abschnittweisen Herstellen von Brueckentragwerken od. dgl. langgestreckten Bauwerken aus Ortbeton und Betonfertigbauteil zum Ausueben des Verfahrens
DE9315849U1 (de) * 1993-10-18 1995-02-16 Hüser, Franz-Josef, 48317 Drensteinfurt Traggerüststütze

Also Published As

Publication number Publication date
EP3795749A1 (fr) 2021-03-24
ES2963660T3 (es) 2024-04-01
PL3795749T3 (pl) 2024-03-18
EP3795749C0 (fr) 2023-09-20
FI12557U1 (fi) 2020-01-15

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