EP2475827B1 - Élément d'armature pour éléments encastrés dans des constructions en béton - Google Patents

Élément d'armature pour éléments encastrés dans des constructions en béton Download PDF

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Publication number
EP2475827B1
EP2475827B1 EP10766337.9A EP10766337A EP2475827B1 EP 2475827 B1 EP2475827 B1 EP 2475827B1 EP 10766337 A EP10766337 A EP 10766337A EP 2475827 B1 EP2475827 B1 EP 2475827B1
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EP
European Patent Office
Prior art keywords
force
recessed parts
concrete
zone
structural 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.)
Active
Application number
EP10766337.9A
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German (de)
English (en)
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EP2475827A1 (fr
Inventor
André Robert
Clément GUTZWILLER
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.)
Acg Holding AG
ROBERT, ANDRE
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Acg Holding AG
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Application filed by Acg Holding AG filed Critical Acg Holding AG
Priority to EP16205449.8A priority Critical patent/EP3181772B1/fr
Publication of EP2475827A1 publication Critical patent/EP2475827A1/fr
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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
    • E04C5/01—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
    • 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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • 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
    • E04C5/18—Spacers of metal or substantially of metal

Definitions

  • the present invention relates to a device for reinforcing concrete structures according to the preamble of patent claim 1.
  • Concrete structures used as ceilings, walls and beams are used in all modern buildings to house media pipes for water, sewage, ventilation, electrical and communication.
  • ventilation ducts usually have large diameters, these were built separately for buildings with air conditioning systems and the ventilation ducts were often rectangular in shape, so that they could be hidden in the infrastructure, eg in suspended ceilings.
  • more and more pipes and ducts for forced ventilation have been installed. This entails that ventilation ducts of large cross section must be inserted. Since no one appreciates publicly laid pipes in private homes and commercial buildings, which in addition to aesthetic defects are also dust collectors and dirt zones and reduce the room height, more and more pipes are installed in the concrete structure.
  • a structural steel construction is specified as reinforcement for a concrete slab element, a concrete floor or a concrete floor with integrated heating or cooling function, which has at least one reinforcing grid and attached carrier for the heating or cooling pipes.
  • the publication EP 1 207 354 A2 shows a support strip for a reinforcement for sheet-like elements of hardenable material.
  • the presented support bar has clamping points where, for example, lines or heating / cooling pipes can be connected.
  • the font DE 19937414A1 describes a device by means of which recesses in the support area of flat slabs of reinforced concrete or prestressed concrete can be reinforced.
  • the problem is recognized that the arrangement of recesses has a fundamental influence on the carrying capacity of the construction. It is also recognized that there must be the possibility of such devices even during construction, just before the pouring of the concrete to be installed.
  • This disclosure only relates to conduits routed perpendicular to the ceiling and through the ceiling in the immediate vicinity of the support and solves the problems of puncture resistance.
  • the problem is more diverse and often causes problems for the structural engineers, because it is difficult to estimate on site and at the time of acceptance and / or control of the reinforcement, how much the strength is weakened by accumulations of media lines and media lines of large diameter, and how to proceed if it is supposed that the carrying capacity of a concrete structure is insufficient.
  • the structural engineer is usually not reported, he is confronted with the facts on the spot and must take the reinforcement usually under time pressure.
  • the present invention now has the object with a component to improve the concrete structures of the type mentioned in such a way that in the planning phase means are made available, which can be used locally reduce the weakenings by media lines or even eliminated.
  • funds are made available that can be installed locally at the time of removal of the reinforcement, which ensures the reinforcement of the concrete structure after pouring the concrete by means of clear and for the civil engineer by means of easily recognizable force model in the field of media lines the Reinforced shear behavior such that the statics of the concrete structure corresponds to the originally made by the structural engineer with the calculation of the reinforcement design either completely or at least approximated.
  • Basis of the invention is a method that allows the civil engineer both in the planning phase as well as locally using components with force models to take effective measures to reinforce the conventionally reinforced concrete construction locally by suitable means in such a way that the construction is not excessive by media lines weakened, respectively, unnecessary unnecessary oversizing of the same must lead to uneconomical building structures.
  • the deposits referred to as internals 20 and media lines are surrounded by means of components 1,21,22,23, which transmit forces and form clearly recognizable force-neutral zones 31.
  • the shear forces act 16,16 '.
  • the figures show such construction in each case in the horizontal arrangement, but apply to any position.
  • the ZD force model 40 is solved by means of ZD component 21, the SB force model 41 is achieved by a SB device 22 and the Requirements of an HS force model 42 allows an HS device 23.
  • the ZD Force Model 40 is in Fig. 1 shown.
  • the force neutral zone 31 is formed by a tensile zone 33 and a pressure zone 32.
  • the pressure forces are through the concrete 12 and other parts of the device 1 such as those in Fig. 21 . 22 taken extensions 8, while for receiving the thrust forces 16,16 'a ZD component 21 with at least one tension element 2 is used.
  • the SB Force Model 41 is in Fig. 2 shown.
  • the force neutral zone 31 is made possible by an MQ zone 37, which can transmit the bending moments 34 and the thrust forces 36.
  • the bending moments 34 and the thrust forces 36 are taken over by an SB component 22 with at least one rigid element 6.
  • Any two force models and force-neutral zones can be combined by the connection via an HS force model 42 in such a way that a horizontal thrust zone 35 is formed which absorbs the horizontal thrust forces 18 (FIG. Fig. 3 ).
  • the same combination can be done with a SB-Force model 41 and the HS-force model 42 are made, this is not shown here but graphically.
  • the invention ensures in the region of said cavities in the transverse direction, the necessary shear behavior by creating a clear flow of forces.
  • the resulting tensile component is taken from the thrust forces (eg, truss model) by the systems and devices described below. It is created locally by the systems an armored area for power transmission. This happens according to the force model by means such as e.g. Arm michsbügel, frame systems, rings, dowels and the like which are described below.
  • It allows the necessary arrangement and guidance of the media lines and the suspension of the resulting tensile forces in such a way that the necessary power flows and concrete pressure diagonals can form. This is done by arranged on the above systems and devices loops, straps, iron, etc. It is also possible to leave the media lines in place and to arrange the new components 1 so that the necessary pressure diagonals can form freely despite the media lines.
  • the ZD component 21 is in the FIGS. 4 and 5 displayed.
  • the most essential part of the ZD component 21 is the drawbar 2.
  • the pull rod 2 may be formed straight or in any conceivable embodiment, for example as a curved rod or frame.
  • anchoring 3 at least at one end.
  • These anchors 3 may consist of round or square upsets, conventional end anchorages such as welded crossbars or bends. They always serve to anchor the drawbar 2 in the concrete 12 after pouring.
  • Fig. 6 shows a built-ZD component 21.
  • the printed diagonal 30 act on the connected to the anchors 3,3 'tie rod 2, so that the baffles 20 can be accommodated in a force-neutral zone 31.
  • the ZD component 21 takes over the transmission of forces, so that even when installing many and / or large installations 20 such as media lines, the concrete structure 10 with a previously designed and existing conventional armor 11 statically little or not weakened.
  • a ZD component 21, or an SB component 22 and also an HS component 23 is still used at the last moment before the pouring of the concrete 12 and the fittings 20 with the loose at one end holder 4 and so on be connected to the corresponding component 21,22 or 23.
  • Other embodiments are in the Fig. 8 to Fig. 11 shown.
  • the tension member 2 also forms the holder 4 for the internals 20. Elements shown in these figures Suitable for the planned installation, so that the craftsmen are given, where they may and should lay your media lines.
  • a component 21, 22 or 23 is already provided in the planning stage by the plumber, the ventilation technician or the electrician, for example, this can insert its lines into the supports 4 of the components 21, 22 or 23 already present on site.
  • the invention thus offers the builders a way to provide the static security for the installation of fixtures 20 at an early stage.
  • a plurality of components 21, 22 and / or 23 can be connected by connections 5 (FIG. FIG. 12 ). This is necessary if there is a risk that could be moved by the pouring of the concrete 12, the components 21,22 and / or 23 and thereby would not act exactly at the place where the civil engineer wants the reinforcement.
  • the anchoring 3 does not have to be an upsetting or a welded part as described above.
  • the pull rod 2 and the Anchoring 3 also consist of a bent angle. Pull rod 2 and anchoring 3 then take over the thrust forces 16 in the Druckdiagonalen 30 mutually. Tie rod 2 and anchoring 3 can both take over the tensile forces caused by the shear forces 16. They are usually arranged at an angle of 90 °.
  • Fig. 13-15 shown can also be created with this arrangement for the internals 20 and especially for media lines with a large diameter a neutral zone 31. Especially in modern construction, which must meet the requirements of building organization (Facility Management), often many installations 20, above all, also medium lines with large diameters are installed.
  • FIG. 16 shows such rigid elements 6, which have the advantage that they create an even larger precisely predetermined neutral zone 31 for fittings 20.
  • the baffles 20 can be bundled with such rigid elements 6 accurately.
  • a rigid element 6 consists for example of a frame 7, which takes over the thrust forces 16 in the form of bending moments and shear forces and thereby a SB-component 22 according to Fig. 2 represents.
  • Fig. 17 a few variations of such SB devices 22 are shown in the form of frame 7.
  • Such frames 7 can be connected to each other by means of connections 5.
  • variants are to be presented, which allow the structural engineer, even at the last moment before pouring the concrete 12 to make arrangements that the concrete structure 10 has no weaknesses and meets the requirements. It is not the goal that you lay out the conventional reinforcement less stable. The goal is rather to reduce or even eliminate weakenings caused by unplanned installations.
  • FIGS. 1 to 19 Basically explained facts in the practical application were to observe elements 1 in the form as they are in FIGS. 20 to 22 be subjected to practical tests. It turns out that the ZD-force model with the in the FIGS. 20-22 show the best results, the components according to Fig. 20 and 22 not part of the invention. In the technical sense, these forms are merely advances in Figures 4,5 . 8 and 9 shown ZD-components 21.
  • the force model 40 is in Fig. 1 shown.
  • the force neutral zone 31 is defined by a tension zone 33 and a pressure zone 32 (FIG. Fig. 1 )educated.
  • the compressive forces are taken over by the concrete 12 and the anchorages, while a ZD component 21'-21 "'(FIG.
  • Fig. 20-22 with at least one tension element 2, 2 'is used.
  • ZD components 21'-21 "'provided in the area of the internals 20 ensure the necessary shear behavior by creating a clear flow of forces with the force-neutral zone 31.
  • the resulting tensile component is derived from the thrust forces (eg half-timbered model) by the ZD components.
  • the most important part of the ZD components 21'-21 “' is the drawbar 2, 2', which acts as a drawstring element in both directions, in order to securely anchor the ZD components 21'-21”'in the concrete equipped with anchorages 3.
  • the anchorages 3 consist for example of welded crossbars, bolted lugs, on upsets or bends. They serve to anchor the drawbar 2,2 'in the concrete after pouring.
  • These can be in the Fig. 21 and Fig. 22 shown extensions 8 take over additional functions, such as the prevention of cracks and the avoidance of large deformations, etc. in close proximity of the components 21'-21 "'They also serve a" gentle "transfer of forces from the ZD components 21'-21"'to the concrete.
  • the local weakenings caused by fixtures 20 are compensated for by the use of inventive ZD components 21'-21 "'.

Claims (9)

  1. Dispositif de renforcement de constructions en béton qui, au moyen d'éléments structurels insérés, enjambe des zones affaiblies produites par des éléments encastrés (20) et transmet les forces,
    dans lequel
    en plus du dimmensionnement conventionnel de l'armature (11), initialement calculé par l'ingénieur structure, et avant que le béton ne soit coulé, les éléments encastrés (20) sont entourés par au moins un élément structurel (1), l'élément structurel (1) comprend au moins un élément de traction (2) sous la forme d'une tige de traction rectiligne, d'une tige courbée ou d'un cadre dont les deux extrémités sont reliés à un ancrage (3),
    il est prévu au moins un support (4) relié à l'élément de traction (2) ou à l'ancrage (3) ou formé par l'élément de traction lui-même,
    l'élément structurel (1) crée un modèle de forces qui renforce le comportement local de la statique sous cisaillement dans la région des éléments encastrés (20), améliorant ainsi la construction en béton affaiblie par les éléments encastrés (20) par transmission des forces,
    et réduit ou élimine les faiblesses statiques de la construction en béton provoquées par les éléments encastrés (20) en ce que l'élément de traction (2) reprend les forces de cisaillement, de compression, transversales, de tension et/ou les moments de flexion,
    des zones neutres de forces (31) sont créées pour les éléments encastrés (20) par le modèle de forces,
    l'élément structurel (1) entoure ces zones neutres de forces (31) au moins partiellement sur deux côtés opposés et complètement sur un troisième côté reliant les deux côtés,
    le support (4) est agencé pour maintenir les éléments encastrés (20) dans la zone neutre de forces (31) et les éléments encastrés (20) sont logés dans les zones neutres de forces (31).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'élément structurel (1) est constitué d'un élément structurel ZD (21) par lequel est créé au moins un modèle de forces ZD (40), qui est constitué d'au moins une zone de compression (32) et d'une zone de tension (33).
  3. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'élément structurel (1) est constitué d'un élément structurel HS (23) par lequel est créé au moins un modèle de forces HS (42), qui est constitué d'au moins une zone de cisaillement horizontal (35).
  4. Dispositif selon les revendications 2 et 3,
    caractérisé en ce que
    l'élément structurel (1) forme au moins un modèle de forces constitué d'au moins un modèle de forces ZD (40) et d'au moins un modèle de forces HS (42).
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'ancrage (3) est constitué de d'ancres terminales conventionnelles telles que des traverses soudées ou des pattes vissées ou des saillies rondes ou anguleuses ou des courbures.
  6. Dispositif selon l'une des revendications 1 à 5,
    caractérisé en ce que
    au moins deux éléments tructurels (1) sont reliés l'un à l'autre par au moins une liaison (5, 5').
  7. Dispositif selon la revendication 6,
    caractérisé en ce que la lisiaon entre au moins deux élément structurels (1) est agencée le long de la zone neutre de forces (31).
  8. Dispositif selon la revendication 6,
    caractérisé en ce que
    des lisiaons (5, 5') entre au moins deux élément structurels (1) sont agencées en travers de la zone neutre de forces (31).
  9. Dispositif selon la revendication 6,
    caractérisé en ce que
    des lisiaons (5, 5') entre au moins deux élément structurels (1) sont agencées le long de la zone neutre de forces (31) et en travers de la zone neutre de forces (31).
EP10766337.9A 2009-09-08 2010-09-03 Élément d'armature pour éléments encastrés dans des constructions en béton Active EP2475827B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16205449.8A EP3181772B1 (fr) 2009-09-08 2010-09-03 Emploi d'un élément d'armure à introduire dans des constructions en béton

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2009/053923 WO2011030178A1 (fr) 2009-09-08 2009-09-08 Élément d'armature pour éléments encastrés dans des constructions en béton
PCT/IB2010/053985 WO2011030270A1 (fr) 2009-09-08 2010-09-03 Élément d'armature pour éléments encastrés dans des constructions en béton

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16205449.8A Division-Into EP3181772B1 (fr) 2009-09-08 2010-09-03 Emploi d'un élément d'armure à introduire dans des constructions en béton
EP16205449.8A Division EP3181772B1 (fr) 2009-09-08 2010-09-03 Emploi d'un élément d'armure à introduire dans des constructions en béton

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EP2475827A1 EP2475827A1 (fr) 2012-07-18
EP2475827B1 true EP2475827B1 (fr) 2017-11-29

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EP10766337.9A Active EP2475827B1 (fr) 2009-09-08 2010-09-03 Élément d'armature pour éléments encastrés dans des constructions en béton
EP16205449.8A Active EP3181772B1 (fr) 2009-09-08 2010-09-03 Emploi d'un élément d'armure à introduire dans des constructions en béton

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US (1) US20120240496A1 (fr)
EP (2) EP2475827B1 (fr)
CA (1) CA2773779A1 (fr)
WO (2) WO2011030178A1 (fr)

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KR100971736B1 (ko) * 2009-04-03 2010-07-21 이재호 상하 각각 이중 앵커리지 기능을 갖는 전단보강재
GB2504720B (en) * 2012-08-07 2014-07-16 Laing O Rourke Plc Joints between precast concrete elements
US20150027076A1 (en) * 2013-07-29 2015-01-29 Benjamin Joseph Pimentel Sleeve Device For Increasing Shear Capacity
JP6433135B2 (ja) * 2014-03-19 2018-12-05 株式会社栗本鐵工所 河川構造物のライニングユニット及びライニング構造
DE202015000739U1 (de) 2015-02-02 2016-05-04 Ancotech Ag Bewehrungsanordnung
US9863137B2 (en) * 2015-03-23 2018-01-09 Jk Worldwide Enterprises Inc. Thermal break for use in construction
US10787809B2 (en) * 2015-03-23 2020-09-29 Jk Worldwide Enterprises Inc. Thermal break for use in construction
US9598891B2 (en) 2015-03-23 2017-03-21 Jk Worldwide Enterprises Inc. Thermal break for use in construction
JP6727854B2 (ja) * 2016-03-02 2020-07-22 前田建設工業株式会社 鉄筋コンクリート構造物のせん断補強構造
DE102016124736A1 (de) * 2016-12-19 2018-06-21 Schöck Bauteile GmbH Bauelement zur Wärmedämmung
JP6855660B2 (ja) * 2017-10-13 2021-04-07 大谷製鉄株式会社 せん断補強鉄筋

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JPH0762793A (ja) 1993-08-31 1995-03-07 Ohbayashi Corp コンクリート構造体の貫通孔補強金物
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Also Published As

Publication number Publication date
EP2475827A1 (fr) 2012-07-18
CA2773779A1 (fr) 2011-03-17
WO2011030178A1 (fr) 2011-03-17
EP3181772B1 (fr) 2023-10-18
WO2011030270A1 (fr) 2011-03-17
US20120240496A1 (en) 2012-09-27
EP3181772A1 (fr) 2017-06-21

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