EP1590542B1 - Element de construction en forme de plaque - Google Patents

Element de construction en forme de plaque Download PDF

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Publication number
EP1590542B1
EP1590542B1 EP03701413A EP03701413A EP1590542B1 EP 1590542 B1 EP1590542 B1 EP 1590542B1 EP 03701413 A EP03701413 A EP 03701413A EP 03701413 A EP03701413 A EP 03701413A EP 1590542 B1 EP1590542 B1 EP 1590542B1
Authority
EP
European Patent Office
Prior art keywords
base plate
construction element
element according
areas
construction
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.)
Expired - Lifetime
Application number
EP03701413A
Other languages
German (de)
English (en)
Other versions
EP1590542A1 (fr
Inventor
Josef Peter Kurath-Grollmann
Walter Roland Weiler-Bisig
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.)
SwissFiber AG
Original Assignee
SwissFiber AG
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
Application filed by SwissFiber AG filed Critical SwissFiber AG
Publication of EP1590542A1 publication Critical patent/EP1590542A1/fr
Application granted granted Critical
Publication of EP1590542B1 publication Critical patent/EP1590542B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/153—Platforms made of plastics, with or without reinforcement

Definitions

  • the present invention relates to a structural element according to the preamble of claim 1.
  • facade scaffold Particularly in building construction plate-shaped construction elements are used as part of the facade scaffold. It is distinguished between several use classes, which u.a. describe the dimension (width of the plate), the payload and the purpose. Since a façade scaffold is a temporary device, these scaffoldings are usually modular in design, i. Virtually any scaffolding constructions can be created with a few, uniformly constructed elements (side members, cross members and plates).
  • the plate-shaped construction elements usually have a length of 250 cm and a width between 60 cm and 90 cm. They are usually used for all usage classes. They are predominantly stressed on bending, whereby in addition also individual, concentrated load cases must be covered.
  • panels are made of wood, a composite of wood with aluminum, aluminum or steel.
  • all of these materials have specific disadvantages.
  • Hybrid plates in terms of weight no major differences, but are insensitive to water absorption. However, in addition to the risk of failure of the welds, such plates have very poor fatigue properties, which also results in only a limited service life.
  • the plates currently available on the market also have a low slip resistance, which adversely affects safety.
  • the plates were made of plastic, resulting in lower weights and better environmental resistance over conventional plates.
  • the plastics generally have an unfavorable modulus of elasticity, so that the required properties either could not be achieved or very thick plates resulted.
  • the object of the present invention was now to provide such a plate-shaped construction element in one piece of plastic, which is able to absorb the required bending loads with the lowest possible weight.
  • the element By forming the element with a flat pressure belt and lateral tension straps high bending stiffness can be achieved with low wall thickness, which finally leads advantageously to a low weight of the element with small dimensions.
  • the formation of the element with arranged below the base plate transverse ribs allows the construction of a base plate with a relatively small thickness.
  • corrugations are formed in the surface, which allow the construction of a base plate with relatively small thickness leaving flat transverse regions, which are reinforced by the arranged below the base plate transverse ribs.
  • plastic preferably fiber-reinforced plastic
  • the beads are advantageously only formed so deep that the stiffening effect is sufficient, but no disadvantages arise in terms of serviceability of the structural element. This is understood in particular the accessibility of the construction element, which should not be affected by too deep or upwardly projecting elements.
  • CFRP elements such as CFRP tapes
  • the tensile load of individual areas of the construction element can be specifically increased, without affecting the dimensions or the weight significantly influenced, ie enlarged.
  • These reinforcements are preferably applied in the region of the maximum tensile loads, ie on the undersides of the transverse ribs and the lower regions of the two lateral flanks.
  • connection elements may be attached to the transverse sides of the structural element, according to the intended use and training of the corresponding connecting members, for example, the scaffolding construction.
  • connection elements Preferably in the form of hook-shaped elements, which are connected, for example, with the flanks of the structural element and protrude in the longitudinal direction thereof.
  • FIG. 1 is the supervision and in FIG. 2 the longitudinal section of a design element designed according to the invention shown.
  • the substantially rectangular upper side of the base plate 1 here preferably has a large number of beads 2, which advantageously all have the same length and width.
  • the beads 2 are each arranged in groups parallel to each other at regular intervals over the entire width of the base plate 1. Between the longitudinal direction of the base plate 1 spaced groups of beads 2 transverse regions 3 are formed free of beads or other elevations or depressions.
  • flanks 5 show outside projecting connecting elements, here in the form of downwardly open profile struts 6.
  • profile struts 6 can now be hung, for example in cross struts of scaffolding structures (not shown) resp. be hung up.
  • these profile struts 6 can be arranged cross-over, and thus, for example, connected together with a cross member.
  • transverse ribs 7 are formed, which extend over the entire width of the base plate 1. The ends of these transverse ribs 7 go directly into the flank surfaces 4 via resp. are connected with these. This prevents bulging of the flank surfaces 4 under load of the base plate 1.
  • This design of the construction element can be made of relatively thin material, a rigid plate-shaped element.
  • the base plate 1 with the beads 2 serves as a pressure belt and the two flank surfaces 4 as a tension belt of the element.
  • such a construction element is made of plastic, which on the one hand leads to an advantageous weather resistance and on the other hand has a high rigidity with low weight due to the shaping according to the invention. This makes it possible to handle such construction elements particularly well and are particularly suitable for use as support plates for scaffolding.
  • FIG. 3 is shown in more detail a longitudinal section of the structural element in the region of the transverse ribs 7. From the illustration, the formation of the remaining transverse region 3 can be seen, which extends over the entire width of the plate 1. Below this transverse region 3, the transverse rib 7 is arranged, which is on the one hand directly connected to the underside of the base plate 1 and is connected at its two ends directly to the flank surface 4.
  • the transverse rib 7 has a porous core 8, for example with a honeycomb structure.
  • This core may be enveloped by a cover layer 9, preferably made of plastic.
  • This layer can be simple or multiple.
  • a CFK reinforcement 10 may be applied, advantageously on the underside of the transverse rib 7, as in FIG FIG. 3 shown.
  • the transverse rib 7 has a trapezoidal cross-section, which, on the one hand, ensures optimum force transmission and reception and, on the other hand, is also simple and therefore inexpensive to produce.
  • flank surfaces 4 can also have CFRP reinforcements, in particular in the lower region, for increasing the rigidity and tensile strength.
  • CFRP reinforcements in particular in the lower region, for increasing the rigidity and tensile strength.
  • FIG. 4 is still a cross section through an inventively designed construction element shown, from which the formation of the beads 2 is particularly well.
  • the flank surfaces 4 in the lower region an additional kink, in the present case directed to the outside, have.
  • the kink resp. Beulsteifmaschine the flank surfaces significantly increased, resulting in greater stability and rigidity of the structural element. Due to the training with kink, the scaffolding floors can continue to be easily stacked on each other.
  • the outer, lower flank area ensures on the one hand for a Lüarretmaschine in the transverse direction and on the other hand allows the stackability.
  • the construction element may be formed without the beads 2, with a substantially flat surface 1.
  • the surface can now be preferably equipped with a slip-resistant coating, which significantly increases the safety of the structural element, especially in scaffolding.
  • FIG. 5 the longitudinal section through such a structural element shown, in which the surface 1 is formed substantially flat and below the transverse ribs 7 are arranged at regular intervals from each other.
  • the formation of the connecting element in the form of a hook 11 is shown schematically here.
  • This hook 11 is advantageous Made of metal and connected to the flank surface 4.
  • any connection element which is adapted to be connected to the corresponding support structure.
  • the specific connection systems of different scaffolding systems attached to the end face of the element, respectively. be incorporated into it.
  • the inventive combination of longitudinal and transverse elements, a simple, rigid and lightweight construction element is provided, which is advantageously produced in fiber-reinforced plastic. These materials are easy to process and show particularly good weathering and corrosion properties with high stability and light weight.
  • flooring elements for facade scaffolding such structural elements are characterized by their advantageous properties in terms of stackability and transport, as well as by rapid handling. Further areas of application are therefore the exhibition construction, the stage construction or the use in the facade area of buildings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Panels For Use In Building Construction (AREA)
  • Revetment (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Emergency Lowering Means (AREA)

Claims (11)

  1. Elément de construction en matière plastique en forme de plaque, comportant une plaque de base (1) globalement rectangulaire, étant précisé que des surfaces latérales (4) dépassent des deux côtés longitudinaux de la plaque de base (1), vers le bas, et qu'il est prévu au moins une nervure transversale (7) qui dépasse de la face inférieure de la plaque de base (1), vers le bas, et qui est reliée à ladite face inférieure et aux zones de la surface latérale (4) qui sont adjacentes,
    caractérisé en ce que les surfaces latérales (4) sont conçues comme des membrures tendues, la hauteur des surfaces latérales (4) étant supérieure à la hauteur de la nervure transversale (7), et la nervure transversale (7) présentant une section transversale trapézoïdale qui va en rétrécissant vers le bas.
  2. Elément de construction selon la revendication 1, caractérisé en ce qu'il est prévu dans la face supérieure de la plaque de base (1), parallèlement au grand côté de la plaque (1), un grand nombre de moulures (2), de préférence espacées régulièrement les unes des autres et parallèles dans le sens transversal de la plaque (1), et également espacées régulièrement les unes des autres dans le sens longitudinal, de manière à former dans le sens longitudinal de la plaque de base (1) des zones transversales (3) espacées, continues d'un côté à l'autre et globalement planes.
  3. Elément de construction selon la revendication 2, caractérisé en ce que la largeur des moulures (2) représente au maximum environ 5% de la largeur de la plaque de base, la longueur des moulures (2) représente au maximum environ 20% de la longueur de la plaque de base (1) et la profondeur des moulures (2) représente au maximum 50% de la profondeur des nervures transversales (7).
  4. Elément de construction selon l'une des revendications 1 à 3, caractérisé en ce que les surfaces latérales (4) dépassent de la plaque de base (1) suivant un angle situé entre 60° et 90°, de préférence de 70°, et leurs zones d'angle sont arrondies.
  5. Elément de construction selon l'une des revendications 1 à 4, caractérisé en ce que les surfaces latérales (4) présentent des garnitures ou des renforcements en matière plastique renforcée par des fibres de carbone ou des bandes en matière plastique renforcée par des fibres de carbone.
  6. Elément de construction selon l'une des revendications 1 à 5, caractérisé en ce qu'il est prévu sur les petits côtés et dans le sens longitudinal de la plaque de base (1) des éléments de liaison saillants (6) qui dépassent de ladite plaque (1).
  7. Elément de construction selon la revendication 6, caractérisé en ce que les éléments de liaison (6) se composent de supports profilés qui présentent globalement une section transversale semi-circulaire ouverte vers le bas et qui sont formés de préférence sur toute la largeur de la plaque de base (1).
  8. Elément de construction selon la revendication 6, caractérisé en ce que les éléments de liaison (6) se composent d'éléments métalliques (11) en forme de crochets qui sont reliés de préférence aux surfaces latérales (4).
  9. Elément de construction selon l'une des revendications 1 à 8, caractérisé en ce que les nervures transversales (7) comportent un renforcement (10) en matière plastique renforcée par des fibres de carbone et présentent de préférence une structure sandwich avec un coeur (8) poreux.
  10. Elément de construction selon l'une des revendications 1 à 9, caractérisé en ce que la face supérieure de la plaque de base (1) présente au moins par zones une surface rugueuse ou structurée, de préférence antidérapante, et est de préférence recouverte d'un revêtement antidérapant.
  11. Elément de construction selon l'une des revendications 1 à 10, caractérisé en ce que les surfaces latérales (4) présentent un coude.
EP03701413A 2003-02-06 2003-02-06 Element de construction en forme de plaque Expired - Lifetime EP1590542B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000092 WO2004070135A1 (fr) 2003-02-06 2003-02-06 Element de construction en forme de plaque

Publications (2)

Publication Number Publication Date
EP1590542A1 EP1590542A1 (fr) 2005-11-02
EP1590542B1 true EP1590542B1 (fr) 2009-07-22

Family

ID=32831654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03701413A Expired - Lifetime EP1590542B1 (fr) 2003-02-06 2003-02-06 Element de construction en forme de plaque

Country Status (7)

Country Link
US (1) US7886873B2 (fr)
EP (1) EP1590542B1 (fr)
AT (1) ATE437275T1 (fr)
AU (1) AU2003203108A1 (fr)
DE (1) DE50311738D1 (fr)
ES (1) ES2330092T3 (fr)
WO (1) WO2004070135A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2814216A1 (fr) 2010-10-14 2012-04-19 Inova Ltd. Vibrateur sismique ayant une plaque de base composite
CN102817470A (zh) * 2012-08-06 2012-12-12 中建三局建设工程股份有限公司 新型脚手板

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592109A (en) * 1922-02-23 1926-07-13 Frederick L Jacobs Stepladder
US2261831A (en) * 1941-01-16 1941-11-04 Budd Wheel Co Scaffolding structure
US3042453A (en) * 1959-02-13 1962-07-03 Lyon Inc Wheel cover
US3434567A (en) * 1966-12-09 1969-03-25 Midland Ross Corp Work platform for scaffolds
CH529276A (de) * 1971-05-06 1972-10-15 Aebi Robert Ag Belagsplatte
US3884328A (en) * 1973-10-01 1975-05-20 Chester I Williams Scaffold plank
GB2033290B (en) * 1978-11-10 1982-12-01 Wycombe Marsh Paper Mills Ltd Attaching reinforcement to substrates
DE2918574C2 (de) * 1979-05-09 1981-09-10 Furnier- Und Sperrholzwerk J.F. Werz Jr. Kg Werzalit-Pressholzwerk, 7141 Oberstenfeld Palette
AU86019S (en) * 1981-12-09 1983-01-14 Chadwick Man Services Pty Limited a scaffold plank
DE3401189A1 (de) * 1983-01-25 1984-07-26 Westland PLC, Yeovil, Somerset Verbund-hubschrauberrumpf
NL8501367A (nl) * 1985-05-13 1986-12-01 Bouwhuis Hendrik Paneel, in het bijzonder steigerligger.
FR2602739B1 (fr) * 1986-07-28 1988-11-18 Aerospatiale Pale en materiaux composites, a structure bilongeron et bicaisson, et a revetement stratifies a sandwich de nid d'abeilles, et son procede de fabrication
DE3705566A1 (de) 1987-02-21 1988-09-01 Mueller & Baum Fassadengeruest
FR2633582A1 (fr) * 1988-07-01 1990-01-05 Jean Marc Auge Renfort de structure en resine synthetique armee de fibres
EP0491768B1 (fr) * 1989-09-13 1995-07-05 KEYS, Gary Engin d'exercice nautique
USD337211S (en) * 1989-12-11 1993-07-13 Baby Bjorn Ab Child stool
DE4135888C2 (de) * 1991-10-31 1994-03-24 Thyssen Huennebeck Gmbh Bord für Baugerüste
US5161640A (en) * 1991-12-24 1992-11-10 Orville R. Holbrooks Mechanic's lift
US5749555A (en) * 1995-08-09 1998-05-12 Composite Structures International, Inc. Height compensating device
US6467117B1 (en) * 2000-09-12 2002-10-22 General Electric Company Light weight work platform with crane

Also Published As

Publication number Publication date
ES2330092T3 (es) 2009-12-04
US20060207216A1 (en) 2006-09-21
WO2004070135A1 (fr) 2004-08-19
ATE437275T1 (de) 2009-08-15
DE50311738D1 (de) 2009-09-03
US7886873B2 (en) 2011-02-15
AU2003203108A1 (en) 2004-08-30
EP1590542A1 (fr) 2005-11-02

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