EP2236686A1 - Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen - Google Patents

Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen Download PDF

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Publication number
EP2236686A1
EP2236686A1 EP09157265A EP09157265A EP2236686A1 EP 2236686 A1 EP2236686 A1 EP 2236686A1 EP 09157265 A EP09157265 A EP 09157265A EP 09157265 A EP09157265 A EP 09157265A EP 2236686 A1 EP2236686 A1 EP 2236686A1
Authority
EP
European Patent Office
Prior art keywords
reinforcing
region
elements
reinforcement layer
reinforcing element
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Withdrawn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
EP09157265A
Other languages
German (de)
English (en)
French (fr)
Inventor
Thomas Keller
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.)
FJ Aschwanden AG
Original Assignee
FJ Aschwanden 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 FJ Aschwanden AG filed Critical FJ Aschwanden AG
Priority to EP09157265A priority Critical patent/EP2236686A1/de
Priority to AU2010201324A priority patent/AU2010201324A1/en
Priority to JP2010085772A priority patent/JP5417243B2/ja
Priority to US12/753,862 priority patent/US20110083386A1/en
Priority to CN201010156898A priority patent/CN101858125A/zh
Publication of EP2236686A1 publication Critical patent/EP2236686A1/de
Priority to US14/093,584 priority patent/US8752347B2/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • 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
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • 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
    • 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
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • 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
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements

Definitions

  • the present invention relates to a reinforcement element for receiving forces of concrete slabs in the region of support elements, in particular columns and support walls, which plate with a first bending reinforcement layer adjacent to the support element and a second bending reinforcement layer facing away from the support element, each formed by substantially and transverse reinforcing bars, between which bending reinforcement layers a number of reinforcing elements are inserted.
  • reinforcing baskets were used as reinforcing elements in the area of the columns in the concrete slabs, which are formed of a plurality of juxtaposed U-shaped reinforcing steel straps which are interconnected by cross bars. These reinforcing cages were then inserted into and connected to the upper and lower bending reinforcement layers of the concrete slab.
  • This reinforcement baskets require a relatively large amount of space, storage and transport to the site is thus complex, also is limited with such reinforcing baskets the burden on the corresponding concrete slabs.
  • reinforcing elements are known, which are formed from reinforcing bars and are equipped with a base bar mounted thereon and connected to the base bar bracket. These reinforcing elements can be individually inserted in the required number in the region to be supported of the plate to be concreted between the upper and lower bending reinforcement layer and connected to these. With these reinforcing elements a good introduction of the forces is achieved in the concrete slab, their handling is still relatively complex, since these reinforcing elements must be prefabricated.
  • the object of the present invention is therefore to provide a reinforcing element for the absorption of forces in concrete slabs in the range of support elements, which can be easily and inexpensively manufactured in addition to the inclusion of large loads and its handling can be done very flexibly.
  • each reinforcing element is formed from a longitudinally stable, flexible longitudinal element whose first end region is guided through the first bending reinforcing layer whose first region adjoining the first end region runs at an acute angle ⁇ against the second bending reinforcing layer, whose second region adjoining the first region is guided through the second bending reinforcement layer and extends in the region of the support element along the surface of the second bending reinforcement layer facing away from the support element and whose second end region is guided against the first bending reinforcement layer by the second bending reinforcement layer.
  • the longitudinally stable flexible longitudinal element, by which the reinforcing elements are formed may, for example, in the form of a roller be led to the construction site, from this role, the reinforcing elements can be unwound and cut to the desired length, this longitudinally stable flexible longitudinal element can then be easily installed between and through the first and second bending reinforcement layer in the required number, which reinforced and concreted Plate can be supported in an optimal way.
  • the longitudinally stable flexible longitudinal element in the form of a strip whose width is a multiple of the thickness, and which can be brought to the desired length.
  • This longitudinal element can be optimally inserted into the bending reinforcement layers.
  • this band can be formed from a plurality of individual strands, which can be arranged side by side and / or one above the other.
  • This band can also be formed from a single strand, which is multi-layered, forming at the end regions loops, superimposed.
  • a plurality of reinforcing elements longitudinal and transversely, substantially parallel to the respective longitudinal and transverse reinforcing bars of the first bending and second Biegebewehrungslage used in the concrete slab, the number of reinforcing elements depends on the male loads and set accordingly can be.
  • a further advantageous embodiment of the invention is that the reinforcing elements are used in multiple layers in the concrete slab. As a result, the use of the reinforcing elements can be adapted very flexibly to the forces to be absorbed.
  • a further advantageous embodiment of the invention consists in that the first and the second end regions and / or the first regions of the reinforcing elements used in multiple layers in the concrete slab are arranged towards or away from each other, whereby an optimal load distribution, depending on the type of application achieved can be.
  • the angle ⁇ is in the range of 20 ° to 50 °, which allows optimum transmission of the forces to be absorbed.
  • a further advantageous embodiment of the invention is that the longitudinally stable flexible longitudinal member is formed of carbon fiber reinforced plastic, whereby the desired physical properties are achieved in an optimal manner.
  • a further advantageous embodiment of the invention consists in that, in the case of center support elements for the concrete slab to be supported, the second end region is guided into the first bending reinforcement layer corresponding to the first end region.
  • the symmetrical arrangement achieves optimum introduction of the forces into the concrete slab.
  • the end regions of the reinforcing elements are each guided at least around a transverse reinforcing bar of the first bending reinforcing layer, while the second region is guided over correspondingly transverse reinforcing bars of the second bending reinforcing layer. This also results in an optimal introduction of the forces on the reinforcing elements on the bending reinforcement layers.
  • a further advantageous embodiment of the invention is that in edge supports for the plate to be supported, the second end portion is guided against the support member to the first bending reinforcement layer.
  • the longitudinal stable flexible longitudinal element forming the reinforcement element is optimally suitable for any use.
  • the end portions of the reinforcing elements in the concrete slabs can be achieved in different ways, the end portions can be looped across a plurality of transverse reinforcing bars of the first bending reinforcing layer, but the end portions of the reinforcing elements can also be equipped with anchoring means serving as anchoring elements, adapted to the respective types of use.
  • the saddle elements are attached to the transverse reinforcing bars, around which the reinforcing elements are deflected, whereby the reinforcing elements are protected in these areas.
  • a further advantageous embodiment of the invention is that the reinforcing elements can be inserted into existing plates in the region of support elements, for which holes in the plate to be reinforced are attachable, through which the respective reinforcing element is inserted, and that the holes are pourable and the end with Anchoring elements are held.
  • existing buildings with the same reinforcing elements can be optimally reinforced.
  • Fig. 1 shows a concrete slab 1, which serves as a ceiling of a building, for example.
  • This concreted plate comprises in a known manner a first bending reinforcement layer 2, which is adjacent to the concrete plate 1 supporting the supporting elements 3, and a second bending reinforcement layer 4, which is inserted on the side facing away from the support elements 3 in the concrete slab 1.
  • the first bending reinforcement layer 2 is formed in a known manner by longitudinal reinforcing bars 5 and transverse reinforcing bars 6, the second bending reinforcing layer 4 also consists in a known manner of longitudinal reinforcing bars 7 and transverse reinforcing bars 8.
  • a reinforcing element 9 according to the invention is used.
  • This reinforcing element 9 is formed from a longitudinally stable, flexible longitudinal element 10, which has a high tensile strength and tensile rigidity, but which is flexible transverse to the longitudinal direction.
  • This longitudinally stable flexible longitudinal element 10 is formed in the illustrated embodiment as a band 11, whose width is a multiple of the thickness.
  • This band consists for example of a carbon fiber reinforced plastic.
  • suitable materials are conceivable, which in particular have a high tensile strength and tensile rigidity.
  • other shapes can be used than those of a band, conceivable would be bundles of thinner longitudinally stable flexible elements having the desired properties.
  • the reinforcement element 9 has a first end region 12, which is guided through the first bending reinforcement layer 2.
  • the first end region 12 wraps around a transverse reinforcing bar 6 of the first bending reinforcing layer 2, the first region 13 leading thereto leads away from this transverse reinforcing bar 6 at an angle ⁇ which is in the range of 20 ° to 50 ° and reaches the second bending reinforcing layer 4
  • the first area 13 wraps around a transverse reinforcing bar 8 of the second bending reinforcing layer and opens into the second area 14.
  • This second area 14 extends substantially across the width of the supporting element 3 above the second bending reinforcing layer 4, is thereafter looped around another transverse reinforcing bar 8 and opens into a second end region 15, which is guided against the first bending reinforcement layer 2.
  • the reinforcing element 9 is guided symmetrically with respect to the support member 3 through the concrete slab 1, such an application is then made when the support member 3 has to support a both sides of this supporting element 3 projecting concrete slab 1.
  • Such a reinforcing element 9 can be used very easily before concreting the plate in the first bending reinforcement layer 2 and the second bending reinforcement layer 4, such a belt 11 can be brought, for example in the form of a wound roll on the site, a piece of this tape is from the role unrolled and cut to the desired length, the reinforcing element inserted into the first bending reinforcement layer 2 and the second bending reinforcement layer 4 can be fixed, the ends of the end regions 12 and 15 can additionally be provided with anchoring means 16, as will be described in detail later.
  • Sattiata 17 which are formed for example of plastic.
  • the concrete After inserting these reinforcing elements 9, the concrete can be introduced.
  • the supporting forces are absorbed by these reinforcing elements in an optimal manner, in particular, these forces are optimally distributed over a large area on the first bending reinforcement layer, these reinforcing elements are practically claimed exclusively on train.
  • Fig. 2 shows a view of the dash-dotted concrete plate 1, the support member 3, through which the concrete slab 1 is supported, inserted into the concrete slab first and second bending reinforcement layer 2 and 4, of which for clarity, only the transverse reinforcing bars 6 and 8 are shown while for clarity, the longitudinal reinforcing bars are omitted.
  • the reinforcing element 9 is inserted into the first bending reinforcement layer 2 and the second bending reinforcement layer 4, wherein this is protected and guided on the reinforcing rods patch saddle 17.
  • Fig. 3 shows a spatial representation of this embodiment.
  • the concrete slab is provided with the first bending reinforcing layer 2 and the second bending reinforcing layer 4 as described above.
  • the first bending reinforcement layer 2 is formed of longitudinal reinforcing bars 5 and transverse reinforcing bars 6
  • the second bending reinforcing layer 4 consists of longitudinal reinforcing bars 7 and transverse reinforcing bars 8.
  • reinforcement elements 9 can be used, depending on loads to be absorbed.
  • Fig. 7 shows an embodiment of how the first end portion 12 of a reinforcing element 9 in the first bending reinforcement layer 2 can be anchored.
  • This first end region 12 can be interlaced around a number of transverse reinforcing bars 6 of the first bending reinforcing layer 2, as shown in FIG Fig. 7 is apparent.
  • the first end region 12 of the reinforcement element 9 is thus held in the first bending reinforcement layer 2.
  • Fig. 8 shows a first end portion 12 of a reinforcing element 9, which is equipped on both sides in a known manner with an adhesive layer 18, which serves as anchoring means 16.
  • Fig. 9 shows the first end portion 12 of a reinforcing element 9, on which are provided as anchoring means 16 on both sides mounted plates 19 which are held by means of screw 20 at the first end portion 12 of the reinforcing element 9.
  • inventive reinforcing elements can also be used in existing structures.
  • holes 22 can be attached, which extend at an acute angle ⁇ (in the range of 20 ° to 50 °) against the side facing away from the support 23 of the plate and there approximately in the region of the support 23 from the plate 21st escape.
  • ⁇ in the range of 20 ° to 50 °
  • the Reinforcing element 9 are inserted, on the support 23 facing surface of the plate 21, this reinforcing element 9 can be anchored in a known manner by anchoring means 24.
  • anchoring means 24 it is conceivable that this reinforcing element 9 is biased in a known manner.
  • Fig. 11 On the left side of the Fig. 11 an embodiment is shown in which the reinforcing element 9 on the side facing away from the support 23 of the plate 21 in a recess 27, for. B. a milled slot is inserted, while on the right side of the Fig. 11 an embodiment is shown in which on the support 23 remote from the surface of the plate 21, the reinforcing element rests on this surface.
  • holes 22 and optionally recess 27 of the plate 21 may be poured in a known manner.
  • This configuration provides optimal reinforcement of an existing structure.
  • a plurality of reinforcing elements 9 can also be used in the area of the support 23 in the plate 21; it is also conceivable to attach these reinforcing elements 9 crosswise, according to the illustrations according to FIG 4 to 6 ,
  • Fig. 12 an embodiment is shown, in which two reinforcing elements 9 superposed placed in the concrete slab 1 are used. These two superposed reinforcing elements 9 can be used in parallel, as shown on the right side of Fig. 12 is shown, but they can also be used running away from each other in particular in the first region 13 of the reinforcing elements 9, as shown on the left side of the Fig. 12 is shown. Also, the first end portions 12 need not be aligned in parallel, they can also be arranged running away from each other.
  • reinforcing elements 9 are stacked on top of each other, depending on the forces to be absorbed. It can also be run several layers of reinforcing elements arranged in multiple layers, the choices are virtually arbitrary.
  • reinforcing elements 9 have been described as used in the region of support elements 3 which are arranged in a central region of a concrete slab to be supported. How out Fig. 13 it can be seen, these reinforcing elements 9 can also be used in edge support elements 25, which are to support an edge region of a concrete slab 1. These edge support elements 25 may in this case be individual supports, but it may also be a support wall.
  • the concrete slab 1 is in turn provided with a first bending reinforcement layer 2 and a second bending reinforcement layer 4, which are connected to one another in the edge region via bending reinforcement rods 28.
  • the reinforcing element 9 On the plate extending further from the support element 25, the reinforcing element 9, as has been described above, is inserted into the first bending reinforcement layer 2 and the second bending reinforcement layer 4.
  • the second end region 15 of the reinforcement element 9 is guided by the second bending reinforcement layer 4 against the first bending reinforcement layer 2, in which case this second end region 15 can be placed around an intermediate rod 29 which is inserted between the first bending reinforcement layer 2 and the second bending reinforcement layer 4.
  • the end of the second end region 15 of the reinforcing element 9 can in turn, as previously described, be equipped in a known manner with anchoring means.
  • Fig. 14 shows a possibility of how the concrete plate 1 in the region of an edge support element can be equipped with corresponding reinforcing elements 9.
  • the parallel to the edge of the concrete plate 1 extending reinforcing elements 9 are inserted into the concreted plate 1, as to the Fig. 1 to 12 has been described.
  • the reinforcing elements 9 attached at right angles to the edge of the concrete slab 1 are inserted into the concrete slab 1 in this way this too Fig. 13 has been described.
  • the edge support member 25 is formed as a retaining wall, the reinforcing elements 9 along this retaining wall can be used side by side as such Fig. 13 has been described.
  • Fig. 15 shows a concrete slab in the corner of a Eck galement 26 is arranged.
  • Reinforcement elements 9 can be used in such a way as to reinforce this corner region of the plate 1 to be supported Fig. 13 has been described, in this case, these reinforcing elements 9 can also be attached crosswise.
  • reinforcing elements concrete slabs to be supported can be optimally reinforced in the area of supporting elements.
  • These reinforcing elements can be used very easily, the variety of applications allows, depending on the load case, to use an optimal number of such reinforcing elements, the band-like design allows to use these reinforcing elements in multiple layers, they can also be arranged side by side and crosswise in any way.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP09157265A 2009-04-03 2009-04-03 Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen Withdrawn EP2236686A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP09157265A EP2236686A1 (de) 2009-04-03 2009-04-03 Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen
AU2010201324A AU2010201324A1 (en) 2009-04-03 2010-04-01 Reinforcement element for absorbing forces of concrete slabs in the area of support elements
JP2010085772A JP5417243B2 (ja) 2009-04-03 2010-04-02 支持部材の領域でコンクリート・スラブの応力を吸収する為の補強部材
US12/753,862 US20110083386A1 (en) 2009-04-03 2010-04-03 Reinforcement element for absorbing forces of concrete slabs in the area of support elements
CN201010156898A CN101858125A (zh) 2009-04-03 2010-04-06 用于在支撑构件的区域吸收混凝土板的力的加固构件
US14/093,584 US8752347B2 (en) 2009-04-03 2013-12-02 Reinforcement element for absorbing forces of concrete slabs in the area of support elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09157265A EP2236686A1 (de) 2009-04-03 2009-04-03 Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen

Publications (1)

Publication Number Publication Date
EP2236686A1 true EP2236686A1 (de) 2010-10-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09157265A Withdrawn EP2236686A1 (de) 2009-04-03 2009-04-03 Bewehrungselement für die Aufnahme von Kräften von betonierten Platten im Bereich von Stützelementen

Country Status (5)

Country Link
US (2) US20110083386A1 (zh)
EP (1) EP2236686A1 (zh)
JP (1) JP5417243B2 (zh)
CN (1) CN101858125A (zh)
AU (1) AU2010201324A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2489808A1 (de) * 2011-02-15 2012-08-22 F.J. Aschwanden AG Bewehrungselement für die Aufnahme von Kräften in Betonelementen, die durch Stützelemente abgestützt sind
GB2491339A (en) * 2011-04-15 2012-12-05 Stephen Bell Punching shear reinforcement structure for pre cast concrete planks
US8752347B2 (en) * 2009-04-03 2014-06-17 F.J. Aschwanden Ag Reinforcement element for absorbing forces of concrete slabs in the area of support elements
WO2021087267A1 (en) * 2019-11-01 2021-05-06 Simpson Strong-Tie Company Inc. Concrete member shear transfer bracket

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US20140102036A1 (en) 2014-04-17
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US20110083386A1 (en) 2011-04-14
JP5417243B2 (ja) 2014-02-12
US8752347B2 (en) 2014-06-17

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