EP1146179A2 - Pre-armed formwork building panel - Google Patents
Pre-armed formwork building panel Download PDFInfo
- Publication number
- EP1146179A2 EP1146179A2 EP01107542A EP01107542A EP1146179A2 EP 1146179 A2 EP1146179 A2 EP 1146179A2 EP 01107542 A EP01107542 A EP 01107542A EP 01107542 A EP01107542 A EP 01107542A EP 1146179 A2 EP1146179 A2 EP 1146179A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- building panel
- fact
- meshes
- panels
- formwork building
- 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- Withdrawn
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8658—Walls made by casting, pouring, or tamping in situ made in permanent forms using wire netting, a lattice or the like as form leaves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
- E04B2/845—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising a wire netting, lattice or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
- E04B2/847—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising an insulating foam panel
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
Definitions
- pre-armed formwork building panel in accordance with this invention, comprising two parallel layers (2, 3) of expanded plastic material respectively placed between electro-welded steel wire meshes (6, 7) on the external faces and trussing in electro-welded reinforcement steel bars (8, 9) inserted on the inner faces, all assembled at given distances by crosspieces (10) in electro-welded steel wire on to these meshes (6, 7) and bars (8, 9) as well as pre-shaped brackets (11) in reinforcement steel bars protruding laterally (12) for linear connection with the armature of adjacent panels (1).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Epoxy Compounds (AREA)
Abstract
Description
-
- Sandwich-type building panels in a mesh of steel wire and expanded plastic material are well-known, made up of a core in expanded plastic material, such as polystyrene, caged between two networks of electro-welded steel wire, reciprocally connected again by means of electro-welding to segments of steel wire making up crosspieces perforating the core;
- the enbloc product thus manufactured can be installed in modular fashion and finished with plaster, held by the metal meshes, to construct prefabricated walls with excellent characteristics of strength, seismic resistance, thermal insulation, sound-proofing and fire-proofing.
- Moreover, a twin pair of these panels can be used, with excellent results, as a formwork for so-called "lost applications", i.e. as a container for pouring cement conglomerate between two panels which remain incorporated with it, encompassed to help form the partition, finished for the purpose on the outer faces with plaster, as described above for the single panel.
-
- The meshes of steel wire covering the opposing panels reciprocally assembled in the production of these "double building panels" or "lost formworks" are embedded in the mass of the cement conglomerate, thereby reinforcing it with appreciable results in terms of overcoming the static deficiencies of concrete, i.e. by acting as an armature, since the slenderness of the steel wires making up the meshes is overcome by their high number.
- Despite this, European (Eurocodes EC 2, design rules) and national regulations dictate a minimum section of five millimetres for concrete reinforcing steel bars, so that the said armature with "many wires" for "double panels" or "lost formworks" in accordance with the known technique, although actually feasible and effective, is not in keeping with reference to these compulsory dispositions, since reinforcement armature cross-sections of less than five millimetres are not even taken into consideration as such.
-
- The principal object of this invention is, in this context, to provide a "sandwich" building panel structure having a network of steel wire and expanded plastic material, in a double implementation form with functions as a "lost formwork", such as to satisfy the legislative and regulatory dispositions which require a minimum section of concrete reinforcing steel bars at the same time as not compromising the characteristics of the panels in question as regards pre-assembly, lightness, ease of installation, modularity and all other attributable advantages.
- Other objects of this invention are to achieve the purpose described above and simultaneously:
- ensure armature continuity between consecutive adjacent panels;
- ensure optimal incorporation between cement conglomerate and armature;
- enhance production, assembly and installation modularity as far as possible;
- ensure multi-function structure for various kinds of installation;
- provide a structure which is easily and rapidly implemented, which equally does not involve substantial modifications of the nature and configuration of the artefacts with which it is used;
- ensure a structure suitable for utilisation in the widest possible range of applications, as well as conforming to the multi-function and modularity requirements of components progressively developed in every technological sector and in particular in the building industry;
- provide a structure which readily ensures conformity with the strictest constructional standards in terms of safety.
- A further purpose of this invention is to achieve the foregoing purposes through a simple and functional structure, safe application and relatively economic cost in consideration of the results obtained.
- These and other purposes are all achieved with the pre-armed formwork building panel, in accordance with this invention, comprising two parallel layers (2, 3) of expanded plastic material respectively placed between electro-welded steel wire meshes (6, 7) on the external faces and trussing in electro-welded reinforcement steel bars (8, 9) inserted on the inner faces, all assembled at given distances by crosspieces (10) in electro-welded steel wire on to these meshes (6, 7) and bars (8, 9) as well as pre-shaped brackets (11) in reinforcement steel bars protruding laterally (12) for linear connection with the armature of adjacent panels (1).
-
- Other characteristics and advantages of the structure in
accordance with this invention will be more readily
appreciated in the following detailed description of a
preferred but not exclusive embodiment, exemplified by but
not limited to the six drawings enclosed, in which:
- figure 1 is a perspective view of a panel in accordance with this invention;
- figure 2 is a perspective view of a panel in accordance with this invention in partial cross-section;
- figure 3 is a plan view;
- figure 4 is a profile view;
- figure 5 is a plan view omitting certain components;
- figure 6 is a profile view omitting certain components.
-
- With reference to these figures and in particular to the
first figure, 1 depicts a "double building panel" or
"formwork panel" in accordance with this invention,
comprising two
panels -
Panels 2 and 3 (see in particular fig. 3) haverelief undulations 4 on the external faces and offset reliefs 5 on the respective linked internal faces, spaced out for the functions illustrated in more detail below. - The
undulation reliefs 4 on the external faces ofpanels 2 and 3 (see also figure 2) are respectively in contact with galvanised metallic meshes indicated with 6 and 7, formed by a dense network at right angles made up of electro-welded steel wires, for example and preferably with a cross-section of 2.5 mm. - The offset reliefs 5 on the inner faces linking with
panels steel reinforcement bars 8, for example and preferably with a cross-section of 5 mm, electro-welded to identicalhorizontal bars 9, spaced by a series of crosspieces 10 (see in particular figures 3 and 4) made up of segments of steel wire, for example and preferably with a cross-section of 2.5 mm, electro-welded to these as well as passing throughpanels - The
crosspieces 10, between the trusses made up of right-angled bars section 12 externally to one side of the formwork panel 1 when placed flush with the other, where they are equipped with anattachment 13 designed to be fitted into the body ofpanels -
- Having thus completed the Static Description of a
preferred implementation example of the structure in
accordance with this invention, there follows a dynamic
description relating to:
the "double building panel" or "formwork panel" in accordance with this invention is pre-assembled in its structure as described in static terms above, so that the device for the production of electro-welded metallic meshes and the device for inserting and cutting of crosspieces in metallic wire for the manufacture of building panels already covered by patents owned by the present applicant are suitable. - The double building panel 1 thus emerges from the
production line complete in every part, as shown in figure
1, lacking only the
brackets 11 therein illustrated, and in view of its permanent characteristics of lightness can be easily transported, handled and installed by operators in the walls of the building under construction. - Having installed two consecutive formwork panels 1, on
the one hand one of these may be fitted with a number of
overlapping
brackets 11, inserted until flush with the insertion side and clamped with the perforating link ofattachment 13 within apanel - in this way, on the other side, the
brackets 11 protrude bysection 12 within the adjacent formwork panel 1, and thus for the length of wall to be built. - At this stage, cement conglomerate may be pouted into the
gap or the formwork defined by
panels vertical steel bars 8 electro-welded to identicalhorizontal steel bars 9 flush withpanels - in this context, the discontinuity of the armature
imposed by the prefabricated nature of the panels is
overcome by the
brackets 11, and in particular by therelative portions 12 inserted into the adjacent panel, thus ensuring seamless continuity of the armature always in keeping with legal requirements. - The square-network
plaster support meshes -
- Evidently, in alternative forms of implementation, while always in keeping with the solution concept in the implementation example illustrated above and below in relative claims, the pre-armed formwork panel structure in accordance with this invention may also be implemented and installed in other ways, with technical and mechanical equivalents or integrative adaptations while always in keeping with the descriptions outlined above and detailed below in the conceptual solution claims.
-
- As evidenced by the above detailed description of a preferred but not exclusive form of implementation and the above comments concerning alternative forms of implementation, the pre-armed formwork panel in accordance with this invention offers the following advantages for the purposes envisaged and other purposes:
- it in fact integrates a simple, economic and multi-function structure of "lost formwork" designed to be manufactured, handled and installed as artefacts in accordance with known technique, i.e. with all the relative advantages in terms of lightness, rapidity and modularity, but at the same time suitable for satisfying the strictest parameters of law and regulations in terms of concrete reinforcement and seismic criteria, as well as presenting excellent characteristics in terms of thermal insulation (KT 0.36 W/m2 x K°) and fire resistance (REI 180).
-
- 1 ) overall view of the double panel or formwork panel
- 2 ) panel
- 3 ) panel
- 4 ) external undulation reliefs
- 5 ) internal offset reliefs
- 6 ) overall view of the metallic network
- 7 ) overall view of the metallic network
- 8 ) vertical reinforcement steel bars
- 9 ) horizontal reinforcement steel bars
- 10 ) crosspieces
- 11 ) shaped brackets
- 12 ) relative protruding portions
- 13 ) relative panel insertion attachment
-
Claims (13)
- Formwork building panel characterised by the fact that it includes at least two panels (2, 3) in expanded plastic material respectively placed between metallic meshes (6, 7) on the external faces and reinforcement bar meshes (8, 9) inserted on the inner faces, all assembled at given distances by metallic crosspieces (10) welded to these meshes (6, 7) and bars (8, 9) as well as pre-shaped metal brackets (11) protruding laterally (12) for linear connection with the armature of adjacent panels (1).
- Formwork building panel characterised by the fact that it includes two parallel panels (2, 3) in expanded plastic material respectively placed between electro-welded steel wire meshes (6, 7) on the external faces and electro-welded reinforcement steel bar meshes (8, 9) inserted on the inner faces, assembled at given distances by metallic crosspieces (10) in electro-welded steel wire welded to these meshes (6, 7) and bars (8, 9) as well as pre-shaped steel bar armature brackets (11) protruding laterally (12) for linear connection with the armature of adjacent panels (1).
- Formwork building panel, according to claim 2, characterised by the fact that said panels (2, 3) have relief undulations (4) on the external faces in contact with these meshes (6, 7) in electro-welded steel wire.
- Formwork building panel, according to claim 2, characterised by the fact that said panels (2, 3) have linking inner faces with protruding reliefs to maintain the armature steel bars (8, 9) separated by at least the minimum distance required by law.
- Formwork building panel, according to claim 2, characterised by the fact that said pre-shaped brackets (11) are made up of steel armature bars closed on themselves and dimensioned to protrude over a section (12) externally to one side of the formwork panel (1) when placed flush with the other.
- Formwork building panel, according to claim 2, characterised by the fact that said pre-shaped brackets (11) are fitted with an attachment (13) designed to be inserted in the body of these panels (2, 3).
- Formwork building panel, according to claim 2, characterised by the fact that said panels (2, 3) have any configuration and dimension suitable for the purpose.
- Formwork building panel, according to claim 2, characterised by the fact that said steel wire making up said meshes (6, 7) has a cross-section of 2.5 mm (two point five millimetres).
- Formwork building panel, according to claim 2, characterised by the fact that said steel armature bars (8, 9) have a cross-section of 5 mm (five millimetres).
- Formwork building panel, according to claim 2, characterised by the fact that said pre-shaped brackets (11) have a cross-section of 5 mm (five millimetres) .
- Formwork building panel, according to claim 2, characterised by the fact that said steel wire making up said meshes (6, 7) have any cross-section suitable for the purpose.
- Formwork building panel, according to claim 2, characterised by the fact that said steel armature bars (8, 9) have any cross-section suitable for the purpose.
- Formwork building panel, according to claim 2, characterised by the fact that said pre-shaped brackets (11) have any cross-section suitable for the purpose.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPS000010 | 2000-04-10 | ||
IT2000PS000010A ITPS20000010A1 (en) | 2000-04-10 | 2000-04-10 | PRE-ARMED FORMWORK PANEL |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1146179A2 true EP1146179A2 (en) | 2001-10-17 |
EP1146179A3 EP1146179A3 (en) | 2003-09-24 |
Family
ID=11453507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01107542A Withdrawn EP1146179A3 (en) | 2000-04-10 | 2001-03-27 | Pre-armed formwork building panel |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1146179A3 (en) |
IT (1) | ITPS20000010A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2853339A1 (en) | 2003-04-03 | 2004-10-08 | Claude Blouet | Wall building process, involves joining two walls by cross bars such that walls are assembled, assembling panels by edges having joint profiles in each wall and inserting cross bars between adjacent edges of panels in each wall |
FR2858990A1 (en) | 2003-08-19 | 2005-02-25 | E M2 Reunion | Prefabricated and insulated panel construction procedure uses additional reinforcing rods and metal frames on corners |
FR2942824A1 (en) * | 2009-03-09 | 2010-09-10 | Fehr | Integrated framework wall for dwelling, has frame whose one portion is secured another portion, where former portion extends to outer side of wall laterally with respect to edge of wall and along extension of internal volume of wall |
WO2012004427A1 (en) * | 2010-07-09 | 2012-01-12 | Angel Fernandez Fernandez | Freestanding permanent formwork |
WO2013079731A1 (en) * | 2011-12-02 | 2013-06-06 | Sanfer Global System, S.L. | Lightweight permanent formwork including an external mesh |
ES2404887R1 (en) * | 2010-09-28 | 2013-06-17 | Sanfer Global System S L | WRAPPED LOST WINDING FOR VERTICAL ELEMENTS WITH EMBASSY MESH |
EP2792805A1 (en) * | 2013-04-15 | 2014-10-22 | Kappema Fertigteilindustrie GmbH | Wallelement consisting of prefabricated elements |
ITUB20160077A1 (en) * | 2016-01-18 | 2017-07-18 | Emmedue S P A | PREFABRICATED BUILDING CONSTRUCTION STRUCTURE |
ITUA20162536A1 (en) * | 2016-04-13 | 2017-10-13 | Emmedue S P A | PREFABRICATED BUILDING CONSTRUCTION STRUCTURE AND RELATED PRODUCTION DEVICE |
ITUA20164467A1 (en) * | 2016-06-17 | 2017-12-17 | Nidyon S R L | Prefabricated element for the construction of an insulated concrete wall, and relative wall comprising this element |
CN111997233A (en) * | 2020-08-10 | 2020-11-27 | 四川省红川建材科技有限责任公司 | Steel wire net frame template cast-in-place concrete composite heat preservation system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180667A1 (en) * | 1984-11-08 | 1986-05-14 | SISMO INTERNATIONAL personenvennootschap met beperkte aansprakelijkheid | Preassembled modules and their use in a building construction |
US4700523A (en) * | 1984-12-28 | 1987-10-20 | Fujikigyo Co., Ltd. | Reinforcing frame work for constructing reinforced concrete structure |
GB2254863A (en) * | 1991-04-16 | 1992-10-21 | Mariano Capozzi | Building panel. |
WO1994019557A1 (en) * | 1993-02-26 | 1994-09-01 | N.T.C. S.R.L. | A prefabricated structural panel |
-
2000
- 2000-04-10 IT IT2000PS000010A patent/ITPS20000010A1/en unknown
-
2001
- 2001-03-27 EP EP01107542A patent/EP1146179A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180667A1 (en) * | 1984-11-08 | 1986-05-14 | SISMO INTERNATIONAL personenvennootschap met beperkte aansprakelijkheid | Preassembled modules and their use in a building construction |
US4700523A (en) * | 1984-12-28 | 1987-10-20 | Fujikigyo Co., Ltd. | Reinforcing frame work for constructing reinforced concrete structure |
GB2254863A (en) * | 1991-04-16 | 1992-10-21 | Mariano Capozzi | Building panel. |
WO1994019557A1 (en) * | 1993-02-26 | 1994-09-01 | N.T.C. S.R.L. | A prefabricated structural panel |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2853339A1 (en) | 2003-04-03 | 2004-10-08 | Claude Blouet | Wall building process, involves joining two walls by cross bars such that walls are assembled, assembling panels by edges having joint profiles in each wall and inserting cross bars between adjacent edges of panels in each wall |
FR2858990A1 (en) | 2003-08-19 | 2005-02-25 | E M2 Reunion | Prefabricated and insulated panel construction procedure uses additional reinforcing rods and metal frames on corners |
FR2942824A1 (en) * | 2009-03-09 | 2010-09-10 | Fehr | Integrated framework wall for dwelling, has frame whose one portion is secured another portion, where former portion extends to outer side of wall laterally with respect to edge of wall and along extension of internal volume of wall |
WO2012004427A1 (en) * | 2010-07-09 | 2012-01-12 | Angel Fernandez Fernandez | Freestanding permanent formwork |
ES2404887R1 (en) * | 2010-09-28 | 2013-06-17 | Sanfer Global System S L | WRAPPED LOST WINDING FOR VERTICAL ELEMENTS WITH EMBASSY MESH |
WO2013079731A1 (en) * | 2011-12-02 | 2013-06-06 | Sanfer Global System, S.L. | Lightweight permanent formwork including an external mesh |
EP2792805A1 (en) * | 2013-04-15 | 2014-10-22 | Kappema Fertigteilindustrie GmbH | Wallelement consisting of prefabricated elements |
AT514300A1 (en) * | 2013-04-15 | 2014-11-15 | Kappema Fertigteilindustrie Gmbh | building |
AT514300B1 (en) * | 2013-04-15 | 2015-10-15 | Kappema Fertigteilindustrie Gmbh | building |
ITUB20160077A1 (en) * | 2016-01-18 | 2017-07-18 | Emmedue S P A | PREFABRICATED BUILDING CONSTRUCTION STRUCTURE |
ITUA20162536A1 (en) * | 2016-04-13 | 2017-10-13 | Emmedue S P A | PREFABRICATED BUILDING CONSTRUCTION STRUCTURE AND RELATED PRODUCTION DEVICE |
ITUA20164467A1 (en) * | 2016-06-17 | 2017-12-17 | Nidyon S R L | Prefabricated element for the construction of an insulated concrete wall, and relative wall comprising this element |
CN111997233A (en) * | 2020-08-10 | 2020-11-27 | 四川省红川建材科技有限责任公司 | Steel wire net frame template cast-in-place concrete composite heat preservation system |
Also Published As
Publication number | Publication date |
---|---|
ITPS20000010A0 (en) | 2000-04-10 |
ITPS20000010A1 (en) | 2001-10-10 |
EP1146179A3 (en) | 2003-09-24 |
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