EP3173547B1 - Coffrage pour l'exécution de pièces coulées horizontales pour fournir des dalles de plancher - Google Patents

Coffrage pour l'exécution de pièces coulées horizontales pour fournir des dalles de plancher Download PDF

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Publication number
EP3173547B1
EP3173547B1 EP16200671.2A EP16200671A EP3173547B1 EP 3173547 B1 EP3173547 B1 EP 3173547B1 EP 16200671 A EP16200671 A EP 16200671A EP 3173547 B1 EP3173547 B1 EP 3173547B1
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EP
European Patent Office
Prior art keywords
cross
members
main frame
formwork
longitudinal
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Active
Application number
EP16200671.2A
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German (de)
English (en)
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EP3173547A1 (fr
Inventor
Guido Faresin
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.)
Faresin Building SpA
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Faresin Building SpA
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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
    • 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
    • E04G11/52—Girders, beams, or the like as supporting members for forms of several units arranged one after another
    • 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
    • E04G11/38—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 for plane ceilings of concrete
    • 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
    • E04G11/54—Girders, beams, or the like as supporting members for forms of extensible type, with or without adjustable supporting shoes, fishplates, or the like

Definitions

  • the present invention relates to a formwork for the execution of horizontal castings for providing floor slabs, according to the preamble of claim 1.
  • conventional formworks are constituted by a series of props that support a frame composed of supporting panels made with metallic profiles, and planks or boards made of wood or plywood are placed and nailed onto this frame.
  • a first drawback of the formworks known today consists in that the panels are inconvenient to handle owing to the weight of their wooden components, to the detriment of the rapidity of assembly of the formwork and of the safety of the operator.
  • a significant portion of the weight is in fact constituted by shaped wooden profiles which are usually integrated into the frame of a supporting panel, and are adapted to receive the nails for fixing the boards, planks or sheets made of wooden material, plywood or solid wood, for the provision of the casting surface.
  • a first solution entails that the panel of the formwork for floor slabs is constituted by a frame that is covered completely by a sheet of plywood, on which nails can be used, and this solution is known and present on the market.
  • a second solution entails that the panel of the formwork for floor slabs is constituted by a frame to which blocks of wood are fixed, in general at its cross-members.
  • the panels for floor slabs are of simple frames without nailable parts, and the latter are provided with additional components that bear the wood block on which to use nails.
  • a further problem of the conventional formworks is represented by the compensations that are necessary in order to cover the entire extent of the floor slab to be provided.
  • the formwork is composed of modular elements, often it does not have the dimensions and precision needed to enable on its own the provision of all of the floor slab, and instead for each specific application of the modular formwork it is necessary to complete the formwork system with elements created to measure in order to cover the distances that need to be covered for the perimetric closure of the floor slab, due both to irregular edges of the floor slab (inclined edges, protruding edges, generally irregular perimeters and the like) and to natural compensations that represent a completion of the formwork, i.e. to fill the spaces that are not reached by the modular formwork elements, such as for example small protruding extensions of floor slab, modest overlaps and other, similar situations.
  • DE 10 2005 031153 A1 discloses a formwork for the execution of horizontal castings for providing floor slabs, having a combination of features as included in the pre-characterizing portion of the appended claim 1.
  • the aim of the present invention is to provide a formwork for the execution of horizontal castings for the provision of floor slabs, which is capable of overcoming the above mentioned drawbacks of conventional formwork systems.
  • Another object of the invention is to devise a formwork that is lighter and easier to handle with respect to conventional formwork systems.
  • a formwork for the execution of horizontal castings for providing floor slabs according to the invention is generally designated with the reference numeral 10.
  • the formwork 10 comprises a series of props, for example 11, 12 and 13 in Figure 1 , and load-bearing heads 14, 15, 16 to be arranged on such props 11, 12, 13 for the support of panels, for example two panels 17 and 27 in Figure 1 , which are designed to define a supporting surface for a covering made of wooden material.
  • Each panel 17 and 27 comprises at least two longitudinal profiles 18 and 19, for resting on the load-bearing heads 14, 15, 16.
  • Each one of the two panels 17 and 27 comprises a main frame 21, for resting on the load-bearing heads 14, 15, 16, and an auxiliary frame 22 that can be extracted reversibly from the main frame 21 in a direction X parallel to the arrangement of the respective panel 17; such auxiliary frame 22 is designed to increase in an adjustable manner the extension of the surface for supporting a covering made of wooden material.
  • the main frame 21 is constituted by the longitudinal profiles 18 and 19, by the cross-members 20 and by optional additional longitudinal reinforcement elements 23, for example tubular profiles, which are fixed below the cross-members 20 with respect to a configuration for use.
  • the auxiliary frame 22 is constituted by cross-members 25, which are fixed at one end to a longitudinal profile 24, with optionally one or more longitudinal reinforcement elements 26 which are fixed below the cross-members 25 with respect to a configuration for use.
  • the cross-members 20 are mutually spaced apart in a longitudinal direction, i.e., in the direction of extension of the longitudinal profiles 18 and 19, by such a distance as to allow the passage between two neighboring first cross-members 20 of the main frame 21 of a second cross-member 25 of the auxiliary frame 21.
  • the auxiliary frame 22 can be extracted with respect to the main frame 21 by virtue of sliding means for the translation of the auxiliary frame 22 on the main frame in the direction X of extension of the cross-members.
  • Such sliding means comprise at least one slider for each one of the second cross-members 25 of the auxiliary frame 22, each one of the sliders, better described below, being adapted to slide in a corresponding guide that is integral with a first cross-member 20 of the main frame 21.
  • each one of the sliders is constituted by a cross-bar 28 fixed to the opposite end of a respective second cross-member 25 with respect to the longitudinal profile 24.
  • the cross-bar 28 takes the form for example of a cylindrical tube with the ends covered by a plug 29 made of plastic material, which is adapted to facilitate sliding in the corresponding guide.
  • Each guide integral with a first cross-member 20 of the main frame 21 is constituted, in the present embodiment, by a sliding slot 30 defined in the direction of the length of each first cross-member 20.
  • Each first cross-member 20 comprises a metallic profile with a cross-section shaped like an isosceles trapezoid 32, with the shorter parallel side on the side of the longitudinal profiles 18 and 19 to which it is fixed.
  • Each one of the second cross-members 25 is constituted by a metallic profile that is substantially identical to the metallic profiles of the first cross-members 20.
  • the first cross-members 20 and the second cross-members 25 have, on their walkable face, which is directed upward in the configuration for use, a plurality of protrusions 36, for example ribbing that extends longitudinally, i.e. in the lengthwise direction of the same cross-member; the function of such protrusions is to increase friction resistance while the cross-members 20 and 25 are being walked on by workers during construction work, thus increasing the level of safety of the formwork system.
  • the longitudinal metallic profiles 18 and 19 of a main frame 21 have an upper flat surface 37, for resting and fixing the flat portion 34 of the first cross-members 20, and a lower flat surface 38, for resting the main frame 20 on supports such as the load-bearing heads 14, 15 and 16.
  • a translation-preventing abutment 40 which is constituted for example by an L-shaped body, for example fixed by welding, as in Figure 6 is fixed to each longitudinal profile 18 and 19, at at least one end; such translation-preventing abutment 40 prevents the unwanted movement of the longitudinal profile 18 and 19 once this is mounted between two load-bearing heads.
  • the coupling of the main frame 21 with the auxiliary frame 22 occurs by way of insertion of the sliders, which are defined by the ends of the cross-bars 28 of the auxiliary frame 22, into the sliding slots 30 defined on the first cross-members 20 of the main frame 21.
  • Such coupling determines a bond between the two panels that prevents vertical movements, with respect to a configuration for use, and allows horizontal translation movements.
  • the formwork according to the invention finds application in several different fields of implementation of formwork systems.
  • the main frame 21 is assembled on a formwork system made up of vertical props 11, 12 and 13 coupled to load-bearing heads 14, 15, 16.
  • the main frame 21 in this case rests directly on the load-bearing heads without the use of any supporting beam.
  • the formwork system without beams thus composed is suitable for mounting auxiliary frames to make up a formwork system for the execution of a floor slab with adjustable extension.
  • the formwork 110 comprises vertical props 111, 112, 113 on which are fixed load-bearing heads 114, 115, 116 between which are placed load-bearing beams 150 and 151; the main frame 21 is therefore mounted on the load-bearing beams 150 and 151.
  • a formwork system with load-bearing beams thus composed is also suitable for mounting main frames 21 to make up a formwork system for the execution of a floor slab with adjustable extension.
  • auxiliary frames 22 can in turn be supported by vertical props, either along their longitudinal profile 24 or along the cross-members 25 thereof.
  • a formwork has been devised that is much more versatile by virtue of panels constituted by a main frame and by an auxiliary frame that can be extracted from the main frame, so as to enable the extension of the surface for supporting a covering made of wooden material, and which at the same time has identical functionality in terms of nailability for the fixing of boards, planks or sheets of wooden material.
  • the level of safety of workers during construction work is increased, by virtue of the particular shape of the cross-section of the cross-members and in particular the presence of anti-slipping upper protrusions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Floor Finish (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Claims (12)

  1. Coffrage (10) pour réaliser des pièces coulées horizontales afin de fournir des dalles de plancher, du type comprenant une série d'étais (11, 12, 13) et de têtes de support de charge (14, 15, 16) agencées sur lesdits étais (11, 12, 13) pour le support de panneaux (17) conçu pour former une surface de support pour un revêtement réalisé à partir de matériau en bois, ledit coffrage (10) comprenant lesdits panneaux (17), chaque panneau (17) comprenant au moins deux profilés longitudinaux (18, 19) pour s'appuyer sur lesdites têtes de support de charge (14, 15, 16) qui sont mutuellement raccordées par des traverses (20), au moins un panneau (17) comprenant un bâti principal (21), pour s'appuyer sur lesdites têtes de support de charge (14, 15, 16), ledit bâti principal (21) étant constitué par lesdits au moins deux profilés longitudinaux (18, 19) et lesdites traverses (20),
    ledit au moins un panneau (17) comprenant en outre un bâti auxiliaire (22) qui peut être extrait de manière réversible dudit bâti principal (21) dans une direction (X) parallèle à l'agencement du panneau (17) respectif, ledit bâti auxiliaire (22) étant adapté pour augmenter, d'une manière ajustable, l'extension de la surface pour supporter un revêtement réalisé à partir de matériau en bois, ledit bâti auxiliaire (22) étant constitué par des traverses (25) qui sont fixées, au niveau d'une extrémité à un profilé longitudinal (24), ledit bâti auxiliaire (22) pouvant être extrait par rapport au bâti principal (21) en vertu de moyens de coulissement pour la translation du bâti auxiliaire (22) sur le bâti principal dans la direction (X) d'extension des traverses, caractérisé en ce que lesdits moyens de coulissement comprennent au moins une glissière pour chacune desdites traverses (25) du bâti auxiliaire (22), chacune desdites glissières étant adaptée pour coulisser dans un guide correspondant qui est solidaire avec une traverse (20) du bâti principal (21).
  2. Coffrage selon la revendication 1, caractérisé en ce que ledit bâti principal (21) est constitué par lesdits profilés longitudinaux (18, 19), par les traverses (20) et par des éléments de renforcement longitudinaux (23) supplémentaires qui sont fixés au-dessous des traverses (20) par rapport à une configuration d'utilisation.
  3. Coffrage selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit bâti auxiliaire (22) comprend en outre un ou plusieurs éléments de renforcement longitudinaux (26) qui sont fixés au-dessous des traverses (25) par rapport à une configuration d'utilisation.
  4. Coffrage selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites traverses (20) du bâti principal (21) sont mutuellement espacées dans une direction longitudinale, c'est-à-dire dans la direction d'extension des profilés longitudinaux (18, 19), selon une distance telle qu'elle permet le passage entre deux traverses (20) voisines du bâti principal (21) d'une traverse (25) du bâti auxiliaire (21).
  5. Coffrage selon une ou plusieurs des revendications précédentes, caractérisé en ce que chacune desdites glissières est constituée par une barre transversale (28) fixée sur l'extrémité opposée d'une traverse (25) respective dudit bâti auxiliaire (22) par rapport au profilé longitudinal (24) dudit bâti auxiliaire (22).
  6. Coffrage selon la revendication 5, caractérisé en ce que ladite barre transversale (28) est constituée par un tube cylindrique avec les extrémités recouvertes par un bouchon (29) en matière plastique, qui est adapté pour faciliter le coulissement dans le guide correspondant.
  7. Coffrage selon la revendication 6, caractérisé en ce que chaque guide qui est solidaire avec une première traverse (20) du bâti principal (21), est constitué par une fente de coulissement (30) définie dans la direction de la longueur de chaque première traverse (20).
  8. Coffrage selon la revendication 7, caractérisé en ce que chaque traverse (20) dudit bâti principal (21) comprend un profilé métallique avec une section transversale formée comme un trapèze isocèle (32), avec le côté parallèle plus court du côté des profilés longitudinaux (18, 19) auquel il est fixé, au-dessous, dans la configuration d'utilisation, le profilé métallique avec une section transversale trapézoïdale isocèle (32) ayant également une partie qui a une section transversale plus étroite (33), qui définit deux fentes de coulissement opposées et symétriques (30), et une partie de base plate (34) qui s'élargit avec des rabats latéraux (35) pour rigidifier la section transversale et améliorer la stabilité du raccordement de ladite traverse (20) avec les profilés longitudinaux (18, 19) respectifs.
  9. Coffrage selon la revendication 8, caractérisé en ce que lesdites traverses (25) dudit bâti auxiliaire (22) sont chacune constituées par un profilé métallique qui est sensiblement identique aux profilés métalliques des traverses (20) dudit bâti principal (21).
  10. Coffrage selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites traverses (20) dudit bâti principal (21) et lesdites traverses (25) dudit bâti auxiliaire (22) ont, sur leur face sur laquelle on peut marcher, qui est dirigée vers le haut dans la configuration d'utilisation, une pluralité de saillies (36), la fonction desdites saillies étant d'augmenter la résistance à la friction alors que l'on marche sur lesdites traverses (20, 25).
  11. Coffrage selon la revendication 8, caractérisé en ce que lesdits profilés longitudinaux (18, 19) d'un bâti principal (21) sont réalisés à partir de métal, lesdits profilés longitudinaux (18, 19) ont une surface plate supérieure (37), pour supporter et fixer la partie plate (34) des traverses (20) dudit bâti principal (21), et une surface plate inférieure (38) pour supporter le bâti principal (20) sur des supports tels que des têtes de support de charge (14, 15, 16).
  12. Coffrage selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'une butée anti-translation (40) est fixée, au niveau d'au moins une extrémité, à chaque profilé longitudinal (18, 19) dudit bâti principal (20).
EP16200671.2A 2015-11-27 2016-11-25 Coffrage pour l'exécution de pièces coulées horizontales pour fournir des dalles de plancher Active EP3173547B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A005967A ITUB20155967A1 (it) 2015-11-27 2015-11-27 Struttura perfezionata di casseratura per l'esecuzione di getti orizzontali per la realizzazione di solai

Publications (2)

Publication Number Publication Date
EP3173547A1 EP3173547A1 (fr) 2017-05-31
EP3173547B1 true EP3173547B1 (fr) 2018-08-22

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EP16200671.2A Active EP3173547B1 (fr) 2015-11-27 2016-11-25 Coffrage pour l'exécution de pièces coulées horizontales pour fournir des dalles de plancher

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EP (1) EP3173547B1 (fr)
DE (1) DE202015106999U1 (fr)
IT (1) ITUB20155967A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10487521B2 (en) * 2017-07-10 2019-11-26 Doka Gmbh Formwork support system and method of installing a formwork support system
CN107724672A (zh) * 2017-10-18 2018-02-23 中国五冶集团有限公司 一种钢结构高层建筑现浇楼盖模板支撑结构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234445A1 (de) * 2002-07-29 2004-02-12 Peri Gmbh Deckenschalungselement eines Deckenschalungssystems
DE102005031153A1 (de) * 2005-07-04 2007-01-18 Peri Gmbh Deckenschalungssystem

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Publication number Publication date
ITUB20155967A1 (it) 2017-05-27
DE202015106999U1 (de) 2016-11-30
EP3173547A1 (fr) 2017-05-31

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