EP3115523B1 - Betonplatte, insbesondere für verbundböden, und ein verbundboden - Google Patents

Betonplatte, insbesondere für verbundböden, und ein verbundboden Download PDF

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Publication number
EP3115523B1
EP3115523B1 EP16178089.5A EP16178089A EP3115523B1 EP 3115523 B1 EP3115523 B1 EP 3115523B1 EP 16178089 A EP16178089 A EP 16178089A EP 3115523 B1 EP3115523 B1 EP 3115523B1
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European Patent Office
Prior art keywords
concrete
panel
concrete panel
composite
reinforcement
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EP16178089.5A
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English (en)
French (fr)
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EP3115523A1 (de
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Mieczyslaw Grobelny
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element

Definitions

  • the object of the invention is a concrete panel, especially for composite floors, and a composite floor.
  • the solutions according to the invention are widely applicable in the construction industry.
  • a solution for composite beam and block floor wherein the floor consists of a thin high-dimensional prefabricated reinforced concrete slab equipped with a reinforcement protruding above the top surface thereof, in the form of prefabricated trusses, extending in parallel to the span of the floor, and of reversed prefabricated reinforced concrete hollow core roof slabs, arranged between these trusses, equipped with outwardly protruding longitudinal and transverse reinforcement.
  • the spaces between the hollow core roof slabs are filled with concrete, wherein the concrete in the spaces extending along the floor constitutes, together with the upper part of the hollow core roof slabs, supporting ribs of the structure.
  • the whole structure is reinforced with a support reinforcement arranged in the supporting ribs of the structure.
  • a steel and concrete beam for reinforcement of prefabricated construction units having a preferable ratio of mass per unit of their length comprises a multi-rod openwork spatial reinforcement in the form of truss located inside a concrete block shaped in the form of a solid, where the spatial steel reinforcement truss is equipped, in the upper part, with a special concrete form shaped in such a way that between the lower and the upper surface of the prefabricated floor, a free space is created.
  • a solution of a single-sided stay-in-place formwork described in Patent Application P.403918 is also known.
  • This document describes a method of making a single-sided profiled stay-in-place formwork, characterised in that the insulation element - stay-in-place formwork is shaped, from the concrete side, in particular through a system of grooves and indents, so that the concrete which fills it ensures good maintenance of the formwork, or the insulation element - stay-in-place formwork may comprise additional elements, shaped blocks or protrusions from its own or other material , so that the concrete which fills them ensures good maintenance of the formwork.
  • Document GB 336 607 (A ) discloses a method of constructing a concrete slab comprising preforming a relatively thin concrete slab, the slab having a plurality of upstanding projections, placing the slab on an underlying support structure, positioning reinforcing means above the thin concrete slab, and pouring concrete onto the slab to form a thicker slab with the reinforcing means embedded therein.
  • reinforcement fibres are introduced into the concrete of the preformed slab, during the performing of the slab, to reduce the risk of cracking during manufacture and erection of the slabs.
  • Patent Application WO2007067130 provides concrete floor assembly which comprises a subfloor element with a floor side and a ground/ceiling side, and a top casting layer.
  • the subfloor element comprises a concrete portion on the floor side, which concrete portion has a bottom casting surface with a surface roughness
  • the top casting layer comprises a casting composition, which comprises a self-compacting concrete and a shrinkage reducing admixture.
  • the top casting layer is cast on the floor side of the subfloor element so that at least a portion of the bottom casting surface is covered by the top casting layer, and wherein the bottom casting surface has such surface roughness that the top casting layer adheres to the bottom casting surface.
  • Document DE102005036913A1 discloses a plate element for producing composite floors.
  • the plate element is provided with slats which are attached to the base plate by means of connecting elements which protrude from the slats on the side towards the base plate and the connecting elements connect the slats with the base plate.
  • the base plate is reinforced by longitudinal and crosswise steel rods and is provided with a steel trusses which protrude above the top surface of the base plate, the top surface being uneven, preferably profiled. Concrete which is poured onto the plate element obtains good maintenance with the base plate.
  • DE102005036913A1 document discloses concrete panel with the bonding layer which is constituted by a heterogeneous top surface of the concrete panel having a roughened or profiled surface but it is not specified how the surface is profiled. The bonding layer according to the document does not have a fibre reinforcement.
  • Beam and block floors are the most common solution. Support elements in this type of floors are reinforced concrete beams with spacing not exceeding 90 cm, most frequently spacing between the ribs is 40 - 60 cm. Between the beams, fills are placed, which can be constituted by hollow blocks made of ceramics, of concrete and gravel, of concrete and slag, of concrete and rubble, of lightweight concrete, of foamed polystyrene, of gypsum etc.
  • the upper part of the beam and block floor is a concrete slab made on site - concrete topping. It protects the hollow blocks against damage and is an underlay for the floor.
  • the slab has a thickness of 3 - 7 cm.
  • the total thickness of the floor is approx. 23 - 35 cm and it depends on the thickness of the slab and on the height of the hollow blocks.
  • Filigree is a stay-in-place formwork slab comprising longitudinal and transverse supporting reinforcement and sunken trusses allowing transport of slabs.
  • reinforcement of floor tie beam is made and an additional reinforcement of floor in the form of basic reinforcement of the structure or additional reinforcements in connection places of slabs.
  • a layer of concrete topping is poured, and the arranged slabs function as a formwork.
  • the primary objective of the inventions described in this document was to eliminate disadvantages of known solutions indicated above.
  • the inventions make it possible to quickly obtain a durable floor without having to incur high time investment, as in the case of beam and block floors, or financial investment, as required by the transport and installation of filigree slabs.
  • improved parameters of bearing capacity and sound insulation were obtained in comparison to described above solutions known from patent applications.
  • bonding of the concrete panel with a layer of concrete topping was improved.
  • the concrete panel especially for composite floors, with dimensions in the range of 100 - 500 mm of height of 20 - 90 cm of width, was equipped with an appropriate reinforcement in the form of a steel truss sunken in the panel.
  • the steel truss was sunken axially centrally over the entire length of the concrete panel.
  • elements of this reinforcement usually in the form of cross-braces, protrude above the top surface of the panel and extend in parallel to the span of the floor. These elements facilitate installation of panels on the construction site, and when flooded with a layer of concrete topping, reinforce its connection to the panel.
  • the concrete panel may be also equipped with an additional longitudinal reinforcement in the form of composite rods or wires and prestressing steel cables. Additionally, the concrete panel was equipped with a fibre reinforcement protruding above the top surface of the concrete panel which is involvedin a bonding layer.
  • the composite floor according to the invention was created from fully prefabricated modular and lightweight concrete panels having predetermined sizes.
  • Floor of this type requires individual designing for each room in which it is to be used.
  • the solution according to the invention does not require the use of heavy equipment when producing and installing individual elements of the floor. Number of elements used in the construction of this type of floor was significantly reduced, which significantly reduced time of the floor installation.
  • the concrete panels used in the floor according to the invention are defined in claim 1.
  • fibre reinforcement in place of previously used transverse reinforcement is an essential feature of the solution according to the invention.
  • Such a solution not only significantly reduces the production cost for the floor but also improves the bearing capacity of the floor.
  • An individual element obtained according to the invention is very thin, which allows for easy transport, handling and arranging of these elements in the floor on the walls of the building.
  • fibre reinforcement in the form of fibres protruding above the top surface of the concrete panel further reinforces the connection between the concrete panel and the concrete topping.
  • An important feature the composite floor according to the invention is equipping the top surface of the concrete panel with a special bonding layer which will further reinforce the connection between the concrete panel and the concrete topping, which in turn will significantly improve the rigidity of the floor and will reduce deflections by many times.
  • Each floor consists of two layers - a lower extended one in which, in addition to the concrete, there is a reinforcement, and an upper compressed layer, most frequently made of concrete only.
  • the element connecting these two layers is a steel truss, and more precisely cross-braces, which not fully combine both layers. Any action aimed at improving the connection concrete-prefabricated unit will improve the bearing capacity. This problem is solved by the use of a bonding layer, as in the floor according to the invention.
  • the bonding layer also constitutes an important feature of the invention in the form of concrete panel, especially for composite floors.
  • the bonding layer was obtained for example thanks to sinking crushed aggregate, e.g. in the form of basalt or granite grit or other, in the top surface of the concrete panel. Additionally, the bonding layer is obtained by providing the top surface of the panel with a rough structure obtained thanks to transverse ribs and/or grooves which are the result of the process of spiked connecting.
  • the bonding layer is constituted by steel or polymeric fibres, protruding above the top surface of the concrete panel, which can also function as a fibre reinforcement. Improvement of bearing capacity of the panel, and especially bearing capacity on the wall, is obtained by a firm connection between the prefabricated unit and the concrete poured on site by means of the bonding layer. So-called rigidity of the floor increases as there is not any slip between the layers.
  • the concrete panel according to the invention can be also used in the construction of other surfaces than the floor, such as e.g. retaining walls, foundations, etc.
  • Structure of the concrete panel, its modularity and low weight make its applicability for the construction wide.
  • Reinforcement of the panel with a longitudinal reinforcement and a fibre reinforcement improves its bearing capacity, which in turn significantly improves properties of the panel used e.g. in the construction of retaining walls.
  • the retaining wall transfers the pressure of the secured construction object onto the substrate, therefore parameters of bearing capacity thereof are extremely important. Thanks to the solutions used, the panels can form a retaining wall with exceptional strength and resistance to high static loads and environmental conditions.
  • Wall made of concrete panels according to the invention is also simple, faster and cheaper to install than the traditional wall. Prefabricated units are set up quickly and easily, regardless of the weather.
  • the concrete panel comprises a centrally located longitudinal steel truss and a fibre reinforcement.
  • the top surface of the panel have a bonding layer which is constituted by sunken grains of crushed aggregate and grooves obtained in the process of spiked connecting, and/or transverse ribs. Additionally the bonding layer is constituted by a fibres protruding above the top surface of the panel, fibres which constitute also a fibre reinforcement.
  • the concrete panel can be also equipped with an additional longitudinal reinforcement in the form of rods or wires sunken in the panel along the steel truss.
  • the composite floor according to the invention can be made of concrete panels having features of variants as indicated in the dependent claims.
  • a layer of concrete topping is applied onto the surface of concrete panels.
  • the concrete panel according to one embodiment may have a height of 300 mm and a width of 50 cm.
  • Height of the concrete panel is the height of the prefabricated unit alone without the steel truss.
  • the essence of the solution according to the invention is a concrete panel, especially for composite floors, having a longitudinal reinforcement in the form of a steel truss arranged axially symmetrically, and a fibre reinforcement, characterised in that the concrete panel also has a bonding layer, which is constituted by a heterogeneous top surface of the concrete panel having a rough structure with ribs and/or grooves and the bonding layer is additionally constituted by elements in the form of crushed aggregate sunken in the top surface of the concrete panel; wherein the fibre reinforcement is constituted by mesh of artificial and/or composite fibres sunken in the plane of the panel, wherein the fibres protrude above the top surface of the concrete panel and are also involved in the bonding layer; and in that the height of concrete panel is in the range of 100 to 500 mm and the width of the concrete panel is in the range of 20 to 90 cm.
  • the panel according to the invention comprises an additional longitudinal reinforcement in the form of composite rods made of fibre glass or other polymer.
  • the additional longitudinal reinforcement of the concrete panel is constituted by wires and/or prestressing steel cables.
  • the fibre reinforcement of the concrete panel is constituted by steel or plastic microfibres.
  • the height of the concrete panel is in the range of 200 to 400 mm and the width is in the range of 40 to 70 cm.
  • the height of the concrete panel is 200 mm, and the width is 60 cm.
  • the essence of the solution according to the invention is also a composite floor, the bottom surface of which is made of modules and the top surface of which is constituted by a layer of concrete topping, wherein the modules are thin prefabricated concrete panels as described above.
  • the height of the concrete panel is in the range of 200 to 400 mm and the width is in the range of 40 to 70 cm.
  • the height of the concrete panel is 200 mm, and its width is 60 cm.
  • the panel comprises an additional longitudinal reinforcement in the form of composite rods made of fibre glass or other polymer.
  • the additional longitudinal reinforcement is constituted by wires and/or prestressing steel cables.
  • the bonding layer connects the concrete panel and the layer of concrete topping.
  • Fig. 1 shows a composite floor in cross-section
  • Fig. 2 shows a concrete panel in cross-section with distinct elements of a steel truss and of fibres of a transverse reinforcement
  • Fig. 3 shows the concrete panel in cross-section with distinct elements of the steel truss, a fibre reinforcement, and grains of crushed aggregate
  • Fig. 4 shows the concrete panel in cross-section with distinct elements of the steel truss, the fibre reinforcement and grooves obtained in the process of spiked connecting
  • Fig. 5 shows a composite floor in cross-section with elements of the steel truss, the fibre reinforcement, a bonding layer and an additional longitudinal reinforcement.
  • a concrete panel 1 especially for composite floors, comprises a longitudinal reinforcement 2 in the form of a steel truss arranged axially symmetrically, a fibre reinforcement 3 and a bonding layer 4 on the top surface of the panel 1.
  • the concrete panel 1 according to the invention can also comprise an additional longitudinal reinforcement 5 in the form of composite rods and/or prestressing wires.
  • a composite floor according to the invention is made of thin, prefabricated concrete panels 1 which panels have the fibre reinforcement 3 and the longitudinal reinforcement 2 in the form of the steel truss arranged axially symmetrically.
  • the concrete panels 1 can comprise the additional longitudinal reinforcement 5 in the form of composite rods and/or prestressing wires.
  • the bonding layer 4 can be applied which covers the top surface of the concrete panel 1 and connects the concrete panel 1 to a layer of concrete topping 6.
  • the composite floor according to the invention can also have additional transverse reinforcements arranged during installation on site anywhere in the floor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)

Claims (11)

  1. Betonplatte (1), insbesondere für Verbunddecken, mit einer Längsbewehrung (2) in Form eines axialsymmetrisch angeordneten Bewehrungsstahls und einer Faserverstärkung (3), dadurch gekennzeichnet, dass:
    die Betonplatte (1) auch eine Verbindungsschicht (4) aufweist, die aus einer heterogenen Oberseite der Betonplatte (1) mit einer grob strukturierten Verrippung und/oder Rillen gebildet wird, und die Verbindungsschicht (4) zusätzlich in der Oberseite der Betonplatte (1) einen gebrochenen Zuschlag aufweist; wobei die Faserverstärkung (3) durch eine in der Platte versenkte Bewehrungsmatte aus Kunst- und/oder Verbundfasern gebildet wird, wobei die Fasern über die Betonplatte ragen und auch in die Verbindungsschicht (4) eingebunden sind; und die Höhe der Betonplatte (1) zwischen 100 und 500 mm und die Breite der Betonplatte (1) zwischen 20 bis 90 cm beträgt.
  2. Die Platte nach Anspruch 1, dadurch gekennzeichnet, dass sie eine zusätzliche Längsbewehrung (5) in Form von Verbundstäben aus Glasfaser oder einem anderen Polymer enthält.
  3. Die Platte nach Anspruch 2, dadurch gekennzeichnet, dass die zusätzliche Längsbewehrung (5) aus Drähten und/oder vorgespannten Stahlseiten besteht.
  4. Die Platte nach Anspruch 1, dadurch gekennzeichnet, dass die Faserverstärkung (3) aus Mikrofasern aus Stahl oder Kunststoff besteht.
  5. Die Platte nach Anspruch 1, dadurch gekennzeichnet, dass ihre Höhe zwischen 200 und 400 mm und die Breite zwischen 40 und 70 cm, vorzugsweise ihre Höhe 200 mm und die Breite 60 cm, beträgt.
  6. Die Verbunddecke, deren Unterseite aus Modulen besteht und deren Oberseite aus einer Betonschicht (6) besteht, wobei die Module dünne vorgefertigte Betonplatten (1) nach Anspruch 1 sind.
  7. Die Verbunddecke nach Anspruch 6, dadurch gekennzeichnet, dass die Höhe der Betonplatte (1) zwischen 200 bis 400 mm und die Breite zwischen 40 und 70 cm beträgt.
  8. Die Verbunddecke nach Anspruch 7, dadurch gekennzeichnet, dass die Höhe der Betonplatte (1) 200 mm und die Breite 60 cm beträgt.
  9. Die Verbunddecke nach Anspruch 6, dadurch gekennzeichnet, dass die Betonplatte (1) eine zusätzliche Längsbewehrung (5) in Form von Verbundstäben aus Glasfaser oder anderem Polymer enthält.
  10. Die Verbunddecke nach Anspruch 9, dadurch gekennzeichnet, dass die zusätzliche Längsbewehrung (5) aus Drähten und/oder vorgespannten Stahlseiten besteht.
  11. Die Verbunddecke nach Anspruch 6, dadurch gekennzeichnet, dass die Verbindungsschicht (4) die Betonplatte (1) und die Betonschicht (6) verbindet.
EP16178089.5A 2015-07-10 2016-07-06 Betonplatte, insbesondere für verbundböden, und ein verbundboden Active EP3115523B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16178089T PL3115523T3 (pl) 2015-07-10 2016-07-06 Panel betonowy, zwłaszcza dla stropów zespolonych i strop zespolony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL413097A PL413097A1 (pl) 2015-07-10 2015-07-10 Panel betonowy, zwłaszcza dla stropów zespolonych i strop zespolony

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EP3115523A1 EP3115523A1 (de) 2017-01-11
EP3115523B1 true EP3115523B1 (de) 2019-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111075081A (zh) * 2020-02-21 2020-04-28 中建八局第一建设有限公司 一种叠合板及其施工方法
CN111716520A (zh) * 2020-07-03 2020-09-29 孟凡林 预应力混凝土叠合板底板平面桁架钢筋免夹混凝土的方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL423148A1 (pl) * 2017-10-12 2019-04-23 Magdalena Lis Zbrojenie płyty stropowej, zwłaszcza stropu zespolonego
CN108374518A (zh) * 2018-04-28 2018-08-07 福州大学 一种装配式组合板中钢板与混凝土板的连接结构及施工方法
CN109441002A (zh) * 2018-09-14 2019-03-08 南京理工大学 一种无热桥硅酸盐陶粒墙体板材结构及其制备方法
CN109403522A (zh) * 2018-11-01 2019-03-01 武汉科技大学 钢筋桁架泡沫混凝土复合楼板
CN112227534A (zh) * 2020-09-21 2021-01-15 上海建工二建集团有限公司 叠合楼板与现浇框架梁连接节点施工方法

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DE102005036913A1 (de) * 2005-08-05 2007-03-22 Albrecht Baader Plattenelement für Elementdecken sowie Schalung zum Herstellen eines Plattenelements für Elementdecken

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111075081A (zh) * 2020-02-21 2020-04-28 中建八局第一建设有限公司 一种叠合板及其施工方法
CN111075081B (zh) * 2020-02-21 2021-11-12 中建八局第一建设有限公司 一种叠合板及其施工方法
CN111716520A (zh) * 2020-07-03 2020-09-29 孟凡林 预应力混凝土叠合板底板平面桁架钢筋免夹混凝土的方法

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PL413097A1 (pl) 2017-01-16
EP3115523A1 (de) 2017-01-11
PL3115523T3 (pl) 2020-03-31

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