EP1624128A1 - Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle - Google Patents

Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle Download PDF

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Publication number
EP1624128A1
EP1624128A1 EP04425595A EP04425595A EP1624128A1 EP 1624128 A1 EP1624128 A1 EP 1624128A1 EP 04425595 A EP04425595 A EP 04425595A EP 04425595 A EP04425595 A EP 04425595A EP 1624128 A1 EP1624128 A1 EP 1624128A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
mats
connection bars
grommets
rods
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.)
Withdrawn
Application number
EP04425595A
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English (en)
French (fr)
Inventor
Giuliano Losi
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.)
Cse Centro Strutture Edili Srl
Original Assignee
Cse Centro Strutture Edili Srl
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 Cse Centro Strutture Edili Srl filed Critical Cse Centro Strutture Edili Srl
Priority to EP04425595A priority Critical patent/EP1624128A1/de
Publication of EP1624128A1 publication Critical patent/EP1624128A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E04C5/203—Circular and spherical spacers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form

Definitions

  • the metal used in these reinforcement structures are of diameter, shape and position which are the fruit of precise structural calculations.
  • connection elements were necessary between the two mats arranged on parallel faces.
  • electro-welded mats which for the structures as above-mentioned are usually flat panels, constituted by longitudinal and transversal rods of a desired diameter, deriving from calculations made, which constitute the reinforcements to be arranged on either face of the vertical element.
  • connection operation of the electrowelded mats with the hooks and pins is done at the worksite, only after having positioned and blocked the electrowelded mat panels one by one. While the transport of the electrowelded mats is easily done, as they are flat structures, the transport of a complete reinforcement would be considerably difficult, as it is a spatial structure having dimensions which are about the same as those of the wall which is to be built, and therefore has a volume, mostly filled by space, which is extremely large.
  • the connecting-up operation of the electrowelded panels with hooks and pins is in any case long and complex; and there is the risk of not respecting the number of connections as required by the statistical calculations.
  • the main aim of the present invention is to obviate the above-indicated drawbacks by providing a metal reinforcement which is easily transportable and at the same time is immediately usable in the worksite, with a smaller need of man-hours, but with greater static and operative safety levels.
  • a considerable advantage of the invention is that it enables an immediate and correct positioning of the reinforcement, which by a single crane operation is arranged with both faces correctly positioned at the correct distance and which provides a correct measure of the concrete cover breadth for application of the forms.
  • a further advantage of the invention is that it provides a metal reinforcement which complete structure is exactly as defined in the structural calculations, especially as regards the connection elements.
  • the metal reinforcement of the invention is used in the work-site realisation of walls in reinforced concrete, in particular for large-dimension vertical structures, such as walls of large sheds, buildings in general, warehouses and the like.
  • the reinforcement of the invention comprises two flat panels of electrowelded mats 1 and 2, which constitute the reinforcement of both faces of the unit, i.e. the lateral walls of the reinforcement, which are made of vertical rods, respectively 1a and 2a, and horizontal rods, respectively 1b and 2b, which are normally made using steel rod elements.
  • the number and diameter of the vertical and horizontal rods are determined using structural calculations relating directly to the unit under construction. Electrowelded units are referred to in the present description as this technology offers greater guarantees with respect to mats built of vertical and horizontal rods connected by mechanical ties; obviously however, nothing would change if mat elements of this type were to be used.
  • the reinforcement of the invention comprises connection bars 3 between the mats 1 and 2 which are conformed and arranged so as to enable, apart from a solid connection between the mats 1 and 2, a reciprocal translation between the mats which is achieved by maintaining the mats themselves on parallel planes even when the mats are being neared and distanced one from another.
  • connection bars 3 to the mats 1 and 2 is about equal to the breadth of the designed opened cage of the reinforcement when in use.
  • connection bars 3 each comprise a metal rod which is provided with two end grommets 3a and 3b which are placed, with a small amount of play, one on a horizontal rod of one of the mats and the other on the corresponding horizontal rod of the other mat.
  • connection bars 3 which are structural elements of the reinforcement, are realized using steel bars; the diameter of the section of the bars, the number thereof and the length thereof depend on the structural calculations made for the reinforcement element to be built.
  • the manufacture of the connection bars 3 and the connection thereof to the metal mats 1 and 2 is extremely simple as the grommets 3a and 3b are in fact ends of the metal bar used to make the rods, which ends are bent around the horizontal rods of the mat to which the grommets 3a and 3b are to be connected.
  • a plurality of stop elements 4 are also comprised, each of which is fixed to a rod of a mat in proximity of a grommet 3a and 3b of the connection rod 3 in order to prevent any sliding of the grommets 3a and 3b in an axial direction to the rod of the mat to which the grommets 3a and 3b are connected.
  • the stop elements 4 are connected in proximity of the relative grommet so as to fix the grommet against a vertical bar crossing a horizontal bar of the mat 1 and 2 on which the grommet is fixed.
  • the crossing point is also a stop element preventing translation of the connection bar 3 in one direction, and thus only one other element, stopping translation in the other direction, is necessary.
  • the connection bars 3, which are, as has been mentioned, a structural part of the reinforcement element, are constantly kept in the correct position.
  • connection bars 3 are also arranged so that when they are in a perpendicular position to the mats 1 and 2, which is the position of maximum distance between the mats, the lower edges 1c and 2c of the mats 1 and 2 are on a same perpendicular plane as the mats 1 and 2.
  • the connection bars 3 are arranged so that when the whole reinforcement cage is formed, the lower edges 1c and 2c of the mats 1 and 2 constitute a flat rest base for the reinforcement as a whole.
  • At least some of the stop elements 4 project externally of the reinforcement with respect to the plane defined by the mat to which the stop elements 4 are connected.
  • the distance of this projection of the stop elements 4 is the same as the distance which is desired between the reinforcement and the walls of a containment structure, not illustrated, which is destined to contain the drop of concrete.
  • the reinforcement already defines the exact distance between the rods of the reinforcement and the containment structure, i.e. the exact breadth of the concrete which will cover the rods of the metal reinforcement.
  • connection bars 3 The normally-circular-section conformation of the connection bars 3, the grommets of which can rotate on the horizontal rods 1b and 2b, render the reinforcement a hinged structure, in which the lateral walls (mats 1 and 2) can translate, either towards or away from one another, while remaining parallel to each other.
  • the reinforcement which is made in special factories away from the worksite, can easily be transported to the site in the transport position, illustrated in figure 1, in which the mats are resting one on the other. In this position the volume of the reinforcement is extremely contained and is indeed practically the same as a single mat.
  • the reinforcement is raised, for example by a crane which, in figure 2, is schematically represented by a hook 5; during the raising the reinforcement automatically opens, with a movement of the mats in a vertical direction (the only direction allowed by the reinforcement structure) into the use position, illustrated in the figure 2, in which it assumes the shape required by the projected design of the reinforcement.
  • the reinforcement In this position the reinforcement is rested on the foundation of the projected wall and is clad in the form very rapidly and precisely thanks to the projection of the stop elements which guarantee the required reinforcement-external concrete surface thickness.
  • the concrete drop can then be performed with having to perform any operation on the reinforcement, which is in effect ready to use, being structured exactly as projected by calculations.
  • the reinforcement cannot move in any way as horizontal movements are prevented, as are downwards movements due to the fact the reinforcement is resting on the foundations (obviously the reinforcement is unable to move in an upwards direction).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP04425595A 2004-08-03 2004-08-03 Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle Withdrawn EP1624128A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04425595A EP1624128A1 (de) 2004-08-03 2004-08-03 Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425595A EP1624128A1 (de) 2004-08-03 2004-08-03 Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle

Publications (1)

Publication Number Publication Date
EP1624128A1 true EP1624128A1 (de) 2006-02-08

Family

ID=34932692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425595A Withdrawn EP1624128A1 (de) 2004-08-03 2004-08-03 Metallbewehrung für die Herstellung von bewehrten Betonstrukturen auf der Baustelle

Country Status (1)

Country Link
EP (1) EP1624128A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050487A3 (es) * 2009-10-29 2011-08-11 Pastorini, Carlos Alberto Discos alivianadores, mallas diseñadas especialmente y el método que los incluye para realizar estructuras alivianadas, como ser losas, prelosas, plateas, tabiques y vigas
CN102363994A (zh) * 2011-11-11 2012-02-29 宿迁华夏建设(集团)工程有限公司 一种环形垫块
US10344477B2 (en) 2010-09-10 2019-07-09 Ricardo Horacio Levinton Weight-reducing discs, specially designed meshes and the method that includes the aforesaid, for producing weight-reduced structure such as slabs, pre-slabs, floors, partitions and beams
US11286633B2 (en) * 2018-08-09 2022-03-29 Asc Grupo Ersi, S.L.U. System with markers for placing a retaining pile with asymmetrical reinforcement and method for using same
PL442146A1 (pl) * 2022-08-29 2024-03-04 Soley Spółka Z Ograniczoną Odpowiedzialnością Sposób wykonywania zbrojonej ściany szczelinowej gruntobetonowej metodą ciągłego mieszania gruntu ze spoiwem hydraulicznym i element zbrojenia ściany

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB184050A (en) * 1921-07-27 1922-08-10 Horace John Nowlan Improvements relating to reinforcements for use in floor slabs, roads and the like
GB212328A (en) * 1922-12-15 1924-03-13 Major & Company Ltd Improvements in reinforced concrete road foundations
DE2342979A1 (de) * 1973-08-25 1975-03-13 Paul Merrettig Abstandhalter fuer obere bewehrung
US4989388A (en) * 1989-02-24 1991-02-05 Hawkeye Concrete Products Co. Spacer for spacing reinforcing mesh wire from the form in the manufacture of concrete pipe and the like
US4999965A (en) * 1990-04-18 1991-03-19 Hawkeye Concrete Products Co. Spacer for double cage reinforcement wire mesh for concrete products
US6691486B1 (en) * 1999-10-22 2004-02-17 Philippe Durand Reinforcement for concrete wall

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB184050A (en) * 1921-07-27 1922-08-10 Horace John Nowlan Improvements relating to reinforcements for use in floor slabs, roads and the like
GB212328A (en) * 1922-12-15 1924-03-13 Major & Company Ltd Improvements in reinforced concrete road foundations
DE2342979A1 (de) * 1973-08-25 1975-03-13 Paul Merrettig Abstandhalter fuer obere bewehrung
US4989388A (en) * 1989-02-24 1991-02-05 Hawkeye Concrete Products Co. Spacer for spacing reinforcing mesh wire from the form in the manufacture of concrete pipe and the like
US4999965A (en) * 1990-04-18 1991-03-19 Hawkeye Concrete Products Co. Spacer for double cage reinforcement wire mesh for concrete products
US6691486B1 (en) * 1999-10-22 2004-02-17 Philippe Durand Reinforcement for concrete wall

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050487A3 (es) * 2009-10-29 2011-08-11 Pastorini, Carlos Alberto Discos alivianadores, mallas diseñadas especialmente y el método que los incluye para realizar estructuras alivianadas, como ser losas, prelosas, plateas, tabiques y vigas
US10344477B2 (en) 2010-09-10 2019-07-09 Ricardo Horacio Levinton Weight-reducing discs, specially designed meshes and the method that includes the aforesaid, for producing weight-reduced structure such as slabs, pre-slabs, floors, partitions and beams
CN102363994A (zh) * 2011-11-11 2012-02-29 宿迁华夏建设(集团)工程有限公司 一种环形垫块
US11286633B2 (en) * 2018-08-09 2022-03-29 Asc Grupo Ersi, S.L.U. System with markers for placing a retaining pile with asymmetrical reinforcement and method for using same
PL442146A1 (pl) * 2022-08-29 2024-03-04 Soley Spółka Z Ograniczoną Odpowiedzialnością Sposób wykonywania zbrojonej ściany szczelinowej gruntobetonowej metodą ciągłego mieszania gruntu ze spoiwem hydraulicznym i element zbrojenia ściany

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