EP2912238A1 - Wall element for building in prefabricated construction - Google Patents

Wall element for building in prefabricated construction

Info

Publication number
EP2912238A1
EP2912238A1 EP13779769.2A EP13779769A EP2912238A1 EP 2912238 A1 EP2912238 A1 EP 2912238A1 EP 13779769 A EP13779769 A EP 13779769A EP 2912238 A1 EP2912238 A1 EP 2912238A1
Authority
EP
European Patent Office
Prior art keywords
wall
inner shell
wall element
bracket
reinforcement
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.)
Granted
Application number
EP13779769.2A
Other languages
German (de)
French (fr)
Other versions
EP2912238B1 (en
Inventor
Anna GALLINAT
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.)
Areva GmbH
Original Assignee
Areva GmbH
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 Areva GmbH filed Critical Areva GmbH
Publication of EP2912238A1 publication Critical patent/EP2912238A1/en
Application granted granted Critical
Publication of EP2912238B1 publication Critical patent/EP2912238B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • E04C2/06—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 reinforced
    • 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
    • E04C2002/045—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 with two parallel leaves connected by tie anchors
    • E04C2002/048—Bent wire anchors

Definitions

  • the invention relates to a trained as precast concrete wall element for the construction of a building. It further relates to a construction made using such wall elements, in particular an operating or plant building of a nuclear power plant.
  • Safety-related buildings of nuclear facilities such as those buildings that house the emergency generators, have so far been almost exclusively designed as a local concrete construction. Due to the very high load level, the prefabricated construction method tested in ordinary residential construction has so far not been used in the nuclear sector.
  • a wall element of the type mentioned was disclosed, which can be in a simple way with other such wall elements to a building, especially a building or complex of buildings, put together and connect that not is designed for normal operating loads, but also withstands unlikely extreme loads - individually or in combination - such as flooding, earthquakes, continuous rain, ice loads, wind loads, hurricanes, extreme ambient temperatures, impact of projectiles, plane crashes, etc.
  • wall module - designed as a precast concrete wall element - there called wall module - provided for the construction of a building with a wall body, with a plurality of in their entirety a regular reinforcing grid forming, preferably each parallel to the edges of the wall body extending reinforcing bars which are cast into the wall body wherein at least some of the reinforcing bars penetrate the wall body substantially edge-to-edge, respectively, and are provided at their ends with connecting elements adapted to make a connection with complementary connecting elements of an immediately adjacent transition element.
  • the respective connecting element - at least in the dissolved, not connected to a complementary connecting element state - so playfully connected or movably connected to the associated reinforcing rod that it is displaceable in a direction perpendicular to the longitudinal direction of the reinforcing rod level on all sides by at least 2 millimeters relative to a planned central position ,
  • a wall element in which the wall body in the manner of a sandwich construction an outer shell, a Inner shell and an intermediate core filling has, the outer shell and the inner shell via reinforcing elements shear and tensile strength are connected to each other.
  • this basic concept of the sandwich construction was not specified there in detail with regard to possible embodiments.
  • the present invention begins, whose task is to further develop the wall elements described in the above-mentioned application. It is a modular prefabricated solid reinforced concrete construction of reinforced concrete slabs and joints joints arise, which removes the high load level among the various load cases mentioned above after connecting the individual elements as a monolithic unit. In particular, it is intended to create a reinforcing structure for the reinforced concrete slabs and for the joint joints that can be erected with acceptable effort and designed for the stated requirements. In addition, the existing when juxtaposing the wall elements and with cast-in-situ or other filling material - for example mortar - to be potted joints have the lowest possible volume, so that on site only little in situ concrete and formwork material is needed.
  • FIG. 1 a wall element manufactured in sandwich construction with an inner shell, an outer shell and a core filling in a perspective view
  • FIG. 2 the construction of the reinforcement of the inner shell of the wall element in an intermediate stage during production in a perspective view
  • FIG. 3 is a longitudinal section through the wall element, FIG. 4 shows a detail of FIG. 3,
  • FIG. 5 shows the structure of the reinforcement of the inner shell of the wall element before pouring the concrete mass surrounding the reinforcement in a perspective view
  • FIG. 6 the inner shell of the wall element after casting the concrete mass in a perspective view
  • FIG. 7 the connection between the inner shell and the outer shell of the
  • FIG. 8 the connection between the inner shell and the outer shell of the
  • FIG. 9 is a top plan view of the connection between the inner shell and the outer shell of the wall element.
  • FIG. 10 from top to bottom different intermediate stages in the connection of two juxtaposed wall elements in each perspective view
  • FIG. 1 another intermediate stage in the connection of two juxtaposed wall elements, namely the casting of the vertical butt joint between the two wall elements
  • FIG. 12 is a detail of FIG. 2 shown reinforcement in lateral plan view
  • FIG. 13 is a detail of the joint reinforcement in the vertical butt joint of two side-by-side wall elements in a perspective view
  • FIG. 14 shows a cross section through the connecting region of two superimposed wall elements
  • FIG. 15 is a longitudinal section through the connecting region of two superimposed wall elements.
  • FIG. 1 shows a perspective view of a sandwich-type cuboid wall element 2, for example for use in a nuclear power plant building.
  • the intended for arrangement in a side wall of a building and usually a complete floor height forming wall element 2 has a constructed as a reinforced concrete structure inner shell 4, a corresponding outer shell 6 and an intermediate core filling 8, for example, heavy concrete, on.
  • the inner shell 4 and the outer shell 6 are each approximately mirror images of each other in an otherwise similar manner, as will be described in more detail below.
  • a plurality of connecting elements 10 for the formation of screw to the overlying wall element (not visible here) out.
  • FIG. FIG. 2 illustrates the structure of the inner shell 4 of the wall element 2, in a sense in a first phase in the construction of the inner reinforcement cage, before the casting of the concrete.
  • the wall element next to it on the right side, as well as the partially potted gap, are indispensable for a while (they are available for image generation with the aid of a CAD program, whereby individual layers have been selectively masked out of the complete construction).
  • the outer shell 6 is constructed as already mentioned analogous to the inner shell 4.
  • the main reinforcement 18, which is also referred to as a bending reinforcement and designed to receive and transmit tensile forces in combination with the wall elements 2, comprises a rectangular grid of horizontal reinforcing bars 20 (in FIG. 2 only the lowermost two are shown) and in the plane of extent of the wall element 2 vertical reinforcing bars 22, which touch each other at the crossing points where they are braided with wire, for example, and thus fixed against each other.
  • the horizontal and thus parallel to the upper and lower edge edge of the wall element 2 aligned reinforcing bars 20 are arranged equidistant from each other, as well as the vertically and thus aligned parallel to the side edges of the wall element 2 reinforcing bars 22.
  • the bar diameter is in both cases - horizontal and vertical - preferred around 30 to 35 mm.
  • the distance between the longitudinal axes of the reinforcing bars 20, 22 is in both cases preferably about 200 mm (square grid).
  • Two vertically successive horizontal reinforcing bars 22, each provided with a screw thread in the horizontal direction, are screwed into associated receptacles of a connecting piece 24, alternatively welded therein.
  • an intermediate central receptacle of the connecting piece 24 is an upwardly projecting from the grid composite, also provided with an external thread connecting bolt 26 is screwed.
  • a retaining plate 28 provided with a central recess can be pushed from above and a nut 30 screwed on above it.
  • a steel box 32 (box), composed of four welded steel plates welded together or alternatively cast in one piece, rectangular in cross-section and fitted between and fitting the two vertical reinforcing bars 22 the outside welded, alternatively screwed.
  • the arrangement of the connecting pieces 24 and the boxes 32 is selected so that they conclude flush with the upper or lower edge of the inner shell 4 in the subsequent casting of the concrete mass, so that only the upper part of the connecting bolt 26 protrudes above.
  • the boxes 32 are embedded in the concrete such that the cuboid interior of the respective box 32 and a substantially cuboid mounting space remains immediately above free.
  • the thus formed in each case, coherent cavity is accessible on the one hand from below via the remaining free lower box opening as well as from the front side 12 via the likewise remaining free engagement opening 14 (see also FIG. 1).
  • a total of a system of connecting elements 10 is formed, with the help of which can be screwed in the later assembly of the building superimposed wall elements 2.
  • the upper wall element 2 is placed on the underlying wall element 2 such that the upper ends of the connecting bolts 26 of the lower wall element 2 respectively pass through the associated boxes 32 of the counterpart.
  • the holding plates 28, which laterally overlap the boxes 32 at their upper edges, are pushed onto the ends of the connecting bolts 26 by the engaging openings 14 in the front side 14 of the inner shell 4 (and analogously in the outer shell 6) secured by screwing and tightening the nuts 30 / clamped.
  • the holding plates 28 take on the function of washers so to speak.
  • the cross-section of the boxes 32 is selected so that the respective connecting bolt 26 therein has a few millimeters of play during assembly in all directions so as to compensate for any dimensional inaccuracies in the subsequent assembly on the construction site.
  • FIG. 1 and FIG. 2 Although the sake of clarity, the holding plates 28 and the nuts 30 are shown in their final assembly position on the connecting bolt 26, but that they are in fact attached and screwed there only after the erection of the walls and the joining of the respective connection partners.
  • the main reinforcement 18 is still a surface reinforcement 34, also in the form of intersecting, lattice-like arranged reinforcing bars 36, 38 with a diameter of about 100 mm and with the same mesh size as the main grid available (square grid with a bar spacing of about 200 mm)
  • the grid of the surface reinforcement 34 formed from the horizontal reinforcing bars 36 and the vertical reinforcing bars 38 is arranged parallel to the grid of the main reinforcement 18, at a distance in the direction of the (here rear) front side 14 of the inner shell 4.
  • the crossing points of both reinforcing grid preferably offset by half a mesh length against each other.
  • the points of intersection of the surface reinforcement 34 thus lie in the center of the meshes of the main reinforcement 18 and vice versa (see also FIG. 12).
  • the individual U-brackets 16 have two legs 40 extending horizontally and parallel to the longitudinal extension direction of the later wall element 2, said legs 40 being arranged in the intermediate space between the main reinforcement 18 and the surface reinforcement. 34 and preferably the vertical reinforcing bars 22 of the main reinforcement 18 touch (at the contact points are braided together with wire), on the side on which the horizontal reinforcing bars 20 are arranged.
  • the one leg 40 of the respective U-bracket 16 lies above the associated horizontal reinforcing bar 20 of the main reinforcement 18, the other below.
  • each of the horizontal reinforcing bars 20 of the main reinforcement 18 is located midway between the two legs 40 of a coplanar U-bar 16 (see also FIG. 12).
  • the located within the inner shell 4 sections of the legs 40 are held comparatively long and extend here in the example over more than four meshes of the main reinforcement 18, so over more than 800 to 1, 000 mm.
  • the outwardly projecting portions have seen in the horizontal direction including the end-side arc 42 each have a length of preferably about 400 mm.
  • the bow end 48 of these U-brackets 44 projects perpendicularly from the rear side 50 opposite the front side 14 and protrudes at least 200 mm in the subsequent core filling 8 inside.
  • the respective U-bracket 44 engages / engages behind the bend or bend or bending point 52 one of the vertical reinforcing bars 22 of the main reinforcement 18 and touches it there.
  • FIG. 3 and FIG. 4 represent a corresponding longitudinal section through the later wall element 2.
  • at least some stitches, preferably most stitches, preferably each stitch of the main reinforcement 18 associated with such a U-bracket 44 is in FIG. 5, showing the complete structure of the reinforcement Composite of the inner shell 4 just before concreting shows.
  • FIG. 6 the state after concreting is shown.
  • the U-brackets 44 are arranged in rows, wherein the O-shaped openings 54 or loops of a row are in alignment in the horizontal direction. Seen in the vertical direction, several of these rows are arranged one above the other over the entire height of the wall element 2, evenly distributed (only two rows are shown here for the sake of simplicity). In each of these rows two reinforcing rods 56 are inserted, which extend over the entire width of the wall member 2 and are aligned horizontally according to the bracket assembly.
  • the one reinforcing bar 56 is oriented in accordance with the free space provided by the O-shaped openings 54 of the bracket arrangement to the inner shell 4, the other to the outer shell 6 out.
  • the reinforcing bars 56 touch the corresponding arcs of the U-bracket 44 from the inside in their vertices.
  • the core filling 8 is poured.
  • the core filling 8 can be made of heavy concrete, taking into account any predetermined requirements for the shielding effect against radioactive radiation.
  • the heavy concrete core filling is also used for load transfer of the loads (namely, pressure loads in the element composite).
  • the concrete surfaces exceeding the experienced a connection have a grain scaffold released surface.
  • Concrete is a mineral building material and can be considered as artificial rock. It consists of a mixture of cement, aggregate and water. As a supplement mainly sand, gravel and grit are used. It is introduced into the forming formwork shortly before installation.
  • Natural aggregates such as gravel from deposits or crushed rock (gravel, grit) are mainly used as aggregates for normal concrete. The addition significantly determines the processability and strength of the concrete. By a suitable grading of different aggregate sizes a dense packing of grains with few cavities in which the cement paste is sought. The dense packing allows the load transfer in the concrete through the grain stand.
  • FIG. 1 illustrated composite of outer shell 6, core filling 8 and inner shell 4 as a monolithic object.
  • the inner shells 4 and the outer shells 6 have a wall thickness S of preferably at least 240 mm.
  • the thickness T of the core filling is variable. For example, it can vary between 200 and around 550 mm. Accordingly, the wall element 2 has a total thickness D in the range of about 700 mm to 1, 000 mm or slightly more. See also the plan view of the wall element 2 according to FIG. 9, in which the core filling 8 is not yet available.
  • FIG. 10 are shown from top to bottom the various steps in assembling and connecting two adjacent wall elements 2 on the construction site.
  • the two wall elements 2 are brought into the desired position relative to each other, in which the peripheral U-bracket 16 of the inner shell 4 on the one hand and the outer shell 6 on the other hand overlap in pairs and touch.
  • the bow of the respective bracket 16 thereby touches the shell edge of the adjacent wall element 2.
  • the bracket sections protruding from the concrete mass pass through the vertically extending butt joint 58 between the two wall elements 2 completely over their width.
  • lockable brackets 60 or rails of steel are slid over the paired U-brackets 16.
  • the brackets 60 form in the final assembly state in each case a closed rectangular frame whose longitudinal struts 64 horizontally and perpendicular to the lattice plane of the main reinforcement 18 (and thus also perpendicular to the U-brackets 16) are aligned, and the transverse struts 66 are vertically aligned.
  • the rectangular frame surrounds / embraces the two associated with him, lying at the same level bracket pairs of inner shells 4 and the outer shells 6 of two juxtaposed wall elements 2 and touches them from the outside.
  • the thus reinforced, advantageously not significantly more than 400 mm wide vertical joint 58 is cast with concrete, preferably with fine-grained concrete of comparable quality as the concrete of the inner shells 4 and outer shells 6 of the wall elements 2 (concrete quality C 50/60 or better ).
  • An intermediate stage in the casting process is shown schematically in FIG. 1 1 represents.
  • the horizontal joint 68 (storage joint) between two wall elements 2, which - by flat spacers 70 spaced from each other - are placed one above the other, is about 50 mm high and is after setting up the walls with a high-quality grouting mortar shed.
  • the openings for the screw connection of the connecting elements 10 are also cast for the final state.
  • All wall elements 2 are immovably connected to each other in the manner described and form as a whole a shear-resistant construction, which has the advantageous properties of a monolithic plate-disc element.
  • the power transmission between the individual components is ensured by specifically designed connections and connections (tensile and shear-resistant connections).
  • wall elements are possible, for example, to allow ceiling connections, T-joints between outer and inner walls, corner joints, etc.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Panels For Use In Building Construction (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention relates to the production of a modular, prefabricated, solid, reinforced concrete construction made of reinforced concrete plates and joint connection elements, which, after connecting the individual elements as a monolithic unit, bears the high load level under various load cases as are typical in nuclear power plant construction. Said aim is achieved by a wall element (2), designed as a prefabricated concrete component, for erecting a structure having a wall body having a substantially rectangular base area and four edges, which wall body has an inner shell (4), an outer shell (6) and a core filling (8) there between, in the manner of a sandwich design.

Description

Beschreibung  description
Wandelement für Gebäude in Fertigbauweise Wall element for prefabricated buildings
Die Erfindung betrifft ein als Betonfertigbauteil ausgebildetes Wandelement zur Errichtung eines Bauwerks. Sie betrifft ferner ein unter Verwendung derartiger Wandelemente hergestelltes Bauwerk, insbesondere ein Betriebs- oder Anlagengebäude eines Kernkraftwerks. The invention relates to a trained as precast concrete wall element for the construction of a building. It further relates to a construction made using such wall elements, in particular an operating or plant building of a nuclear power plant.
Sicherheitsrelevante Gebäude von nuklearen Anlagen, beispielsweise solche Gebäude, die die Notstromaggregate beherbergen, wurden bislang fast ausschließlich als Ortsbetonkonstruktion ausgeführt. Die im gewöhnlichen Wohngebäudebau erprobte Fertigbauweise kam im nuklearen Sektor aufgrund des sehr hohen Lastniveaus bislang praktisch nicht zur Anwendung. Safety-related buildings of nuclear facilities, such as those buildings that house the emergency generators, have so far been almost exclusively designed as a local concrete construction. Due to the very high load level, the prefabricated construction method tested in ordinary residential construction has so far not been used in the nuclear sector.
Das Gebäude / die Konstruktion muss dort nämlich allen Lasten und Lastverbindungen von folgenden Ereignissen aus den Gruppen EVI - Einwirkung von InnenNamely, the building / construction there must meet all the loads and load connections of the following events from the groups EVI - influence of interior
- und EVA - Einwirkung von außen - widerstehen: - and EVA - external impact - resist:
Normaibetrieb: Normaibetrieb:
- Ständige Lasten  - Permanent loads
- Variable Lasten inklusive Lasten bedingt durch Transport und Installation - Variable loads including loads due to transport and installation
- Kombinierte Lasten - Combined loads
Einflüsse durch von außen verursachte Personenereignisse: Influences caused by outside events:
- Explosion  - explosion
- Abstürze von Flugmaschinen  - crashes of flying machines
- Feuer im Außenbereich  - Fire in the outdoor area
Einflüsse durch innere unvorhergesehene Ereignisse: Influences from internal unforeseen events:
- Innerbetriebliches Feuer  - Internal fire
- Einsturz des inneren Designs - Fallende Lasten - collapse of the inner design - Falling loads
- Interne Überflutung  - Internal flooding
- Interne Explosion  - Internal explosion
Unwahrscheinliche Ereignisse: Unlikely events:
- Erdbeben  - Earthquake
- Extreme Winde  - Extreme winds
- Extremer Schnee und Vereisung  - Extreme snow and icing
- Tornadolasten, Einfluss von Tornado-Geschossen  - Tornadolasten, influence of Tornado-Geschossen
- Extreme Außentemperaturen  - Extreme outside temperatures
- Externe Überflutung  - External flooding
- Extremer Niederschlag  - extreme precipitation
- Objektschutz  - Property protection
- Explosive Druckwelle  - Explosive pressure wave
- Explosive Gaswolke  - Explosive gas cloud
Die Verwendung von Fertigbauteilen - obwohl wegen der damit einhergehenden Standardisierung und der Optimierung der gesamten Planung, Konstruktion und Bauabläufe als durchaus wünschenswert angesehen - stieß in diesem Kontext bislang auf erhebliche Schwierigkeiten und unterblieb daher. Dies liegt insbesondere an den bislang im Fertigbau gebräuchlichen Verbindungstechniken, die entweder die im nuklearen Sektor gestellten Anforderungen hinsichtlich Lastabtrag nicht erfüllen oder nicht in der Lage sind, die dort anzutreffenden, zulässigen Bauteiltoleranzen einzuhalten und zugleich flexible Anschlüsse auf der Baustelle zu ermöglichen und Ausrichtungsungenauigkeiten bei der Montage zu überwinden. The use of prefabricated components - although regarded as quite desirable because of the associated standardization and the optimization of the entire planning, construction and construction processes - encountered considerable difficulties in this context and therefore remained unsupported. This is particularly due to the customary in prefabrication connection technologies that either do not meet the requirements imposed in the nuclear sector in terms of load transfer or are not able to comply with the there encountered allowable component tolerances and at the same time allow flexible connections on site and alignment inaccuracies in the Overcome assembly.
Die Tatsache, dass für jedes Kernkraftwerk im Wesentlichen die gleichen Gebäude, mit der gleichen Funktionalität neu geplant werden, führt zu der Überlegung, wie die Planungs- und Ausführungskosten reduziert werden können. The fact that essentially the same buildings, with the same functionality are planned for each nuclear power plant, leads to the consideration of how the planning and execution costs can be reduced.
Eine Reduzierung ist möglich durch Systeme, die es ermöglichen, mit vorgefertigten Modulen die gewünschten Räume und ihre Belegung flexibel zu planen. Dem liegt die Überlegung zugrunde, dass die Einführung der Fertigteilbauweise bisher vor allem auf Schwierigkeiten bezüglich der kraftschlüssigen Verbindung zwischen den einzelnen Bauelementen und der Überwindung der damit einhergehenden Toleranzen und Maßungenauigkeiten sowie Ausrichtungsungenauigkeiten bei der Montage stieß. A reduction is possible by means of systems which make it possible to flexibly plan the desired rooms and their occupancy with prefabricated modules. This is based on the consideration that the introduction of precast construction so far especially encountered difficulties in the frictional connection between the individual components and overcoming the associated tolerances and dimensional inaccuracies and alignment inaccuracies in the assembly.
In einer Voranmeldung der AREVA NP GmbH mit der Veröffentlichungsnummer WO 2012 / 123067 A1 wurde ein Wandelement der eingangs genannten Art offenbart, das sich auf einfache Weise mit weiteren derartigen Wandelementen zu einem Bauwerk, speziell einem Gebäude oder Gebäudekomplex, zusammensetzen und verbinden lässt, das nicht nur für gewöhnliche Betriebslasten ausgelegt ist, sondern darüber hinaus auch unwahrscheinlichen extremen Belastungen - einzeln oder gar in Kombination - standhält, etwa Überflutung, Erdbeben, Dauerregen, Eislasten, Windlasten, Wirbelstürme, extreme Umgebungstemperaturen, Einschlag von Geschossen, Flugzeugabstürze etc. In a pre-application of AREVA NP GmbH with the publication number WO 2012/123067 A1, a wall element of the type mentioned was disclosed, which can be in a simple way with other such wall elements to a building, especially a building or complex of buildings, put together and connect that not is designed for normal operating loads, but also withstands unlikely extreme loads - individually or in combination - such as flooding, earthquakes, continuous rain, ice loads, wind loads, hurricanes, extreme ambient temperatures, impact of projectiles, plane crashes, etc.
Demnach ist ein als Betonfertigbauteil ausgebildetes Wandelement - dort Wandmodul genannt - zur Errichtung eines Bauwerks mit einem Wandkörper vorgesehen, mit einer Mehrzahl von in ihrer Gesamtheit ein regelmäßiges Bewehrungsgitter bildenden, vorzugsweise jeweils parallel zu den Rändern des Wandkörpers verlaufenden Bewehrungsstäben, die in den Wandkörper eingegossen sind, wobei zumindest einige der Bewehrungsstäbe den Wandkörper jeweils im Wesentlichen von Rand zu Rand durchdringen und an ihren Enden mit Verbindungselementen versehen sind, die zur Herstellung einer Verbindung mit komplementären Verbindungselementen eines unmittelbar benachbarten Wandelelements ausgebildet sind. Dabei ist das jeweilige Verbindungselement - jedenfalls im gelösten, nicht mit einem komplementären Verbindungselement verbundenen Zustand - derart spielbehaftet bzw. beweglich mit dem zugehörigen Bewehrungsstab verbunden, dass es in einer zur Längsrichtung des Bewehrungsstabes senkrechten Ebene allseitig um mindestens 2 Millimeter gegenüber einer vorgesehenen Zentralposition verschiebbar ist. Accordingly, designed as a precast concrete wall element - there called wall module - provided for the construction of a building with a wall body, with a plurality of in their entirety a regular reinforcing grid forming, preferably each parallel to the edges of the wall body extending reinforcing bars which are cast into the wall body wherein at least some of the reinforcing bars penetrate the wall body substantially edge-to-edge, respectively, and are provided at their ends with connecting elements adapted to make a connection with complementary connecting elements of an immediately adjacent transition element. In this case, the respective connecting element - at least in the dissolved, not connected to a complementary connecting element state - so playfully connected or movably connected to the associated reinforcing rod that it is displaceable in a direction perpendicular to the longitudinal direction of the reinforcing rod level on all sides by at least 2 millimeters relative to a planned central position ,
Ferner wurde als bevorzugte Ausführungsform ein Wandelement beschrieben, bei dem der Wandkörper nach Art einer Sandwichbauweise eine Außenschale, eine Innenschale und eine dazwischen liegende Kernfüllung besitzt, wobei die Außenschale und die Innenschale über Bewehrungselemente schub- und zugfest miteinander verbunden sind. Allerdings wurde dieses Grundkonzept der Sandwichbauweise dort nicht näher hinsichtlich möglicher Ausführungsformen konkretisiert. Furthermore, as a preferred embodiment, a wall element has been described, in which the wall body in the manner of a sandwich construction an outer shell, a Inner shell and an intermediate core filling has, the outer shell and the inner shell via reinforcing elements shear and tensile strength are connected to each other. However, this basic concept of the sandwich construction was not specified there in detail with regard to possible embodiments.
An dieser Stelle setzt die vorliegende Erfindung an, deren Aufgabe es ist, die in der genannten Voranmeldung beschriebenen Wandelemente weiterzuentwickeln. Es soll eine modular vorgefertigte massive Stahlbetonkonstruktion aus Stahlbetonplatten und Fugenverbindungselementen entstehen, die nach dem Verbinden der einzelnen Elemente als eine monolithische Einheit das hohe Lastniveau unter den verschiedenen eingangs genannten Lastfälien abträgt. Dabei soll insbesondere eine mit akzeptablem Aufwand zu errichtende und für die genannten Anforderungen ausgelegte Bewehrungsstruktur für die Stahlbetonplatten und für die Fugenverbindungen geschaffen werden. Außerdem sollen die beim Aneinanderreihen der Wandelemente vorhandenen und mit Ortbeton oder einer anderen Füllmasse - beispielsweise Mörtel - zu vergießenden Fugen ein möglichst geringes Volumen besitzen, so dass auf der Baustelle nur wenig Ortbeton und Schalungsmaterial benötigt wird. At this point, the present invention begins, whose task is to further develop the wall elements described in the above-mentioned application. It is a modular prefabricated solid reinforced concrete construction of reinforced concrete slabs and joints joints arise, which removes the high load level among the various load cases mentioned above after connecting the individual elements as a monolithic unit. In particular, it is intended to create a reinforcing structure for the reinforced concrete slabs and for the joint joints that can be erected with acceptable effort and designed for the stated requirements. In addition, the existing when juxtaposing the wall elements and with cast-in-situ or other filling material - for example mortar - to be potted joints have the lowest possible volume, so that on site only little in situ concrete and formwork material is needed.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. This object is achieved by the features of claim 1.
Vorteilhafte Weiterentwicklungen und Konkretisierungen des Grundprinzips gehen aus den Unteransprüchen sowie aus der nachfolgenden detaillierten Beschreibung eines Ausführungsbeispiels hervor. Es zeigen jeweils in vereinfachter und sche- matischer Darstellung: Advantageous developments and concretizations of the basic principle will become apparent from the subclaims and from the following detailed description of an embodiment. Each shows in simplified and schematic form:
FIG. 1 ein in Sandwichbauweise gefertigtes Wandelement mit einer Innenschale, einer Außenschale und einer Kernfüllung in perspektivischer Ansicht, FIG. 2 den Aufbau der Bewehrung der Innenschale des Wandelementes in einem Zwischenstadium während der Fertigung in perspektivischer Ansicht, FIG. 1 a wall element manufactured in sandwich construction with an inner shell, an outer shell and a core filling in a perspective view, FIG. 2 the construction of the reinforcement of the inner shell of the wall element in an intermediate stage during production in a perspective view,
FIG. 3 einen Längsschnitt durch das Wandelement, FIG. 4 einen Ausschnitt aus FIG. 3, FIG. 3 is a longitudinal section through the wall element, FIG. 4 shows a detail of FIG. 3,
FIG. 5 den Aufbau der Bewehrung der Innenschale des Wandelementes vor dem Gießen der die Bewehrung umgebenden Betonmasse in perspektivischer Ansicht, FIG. 5 shows the structure of the reinforcement of the inner shell of the wall element before pouring the concrete mass surrounding the reinforcement in a perspective view,
FIG. 6 die Innenschale des Wandelementes nach dem Gießen der Betonmasse in perspektivischer Ansicht, FIG. 6 the inner shell of the wall element after casting the concrete mass in a perspective view,
FIG. 7 die Verbindung zwischen der Innenschale und der Außenschale des FIG. 7 the connection between the inner shell and the outer shell of the
Wandelements in perspektivischer Ansicht,  Wall element in perspective view,
FIG. 8 die Verbindung zwischen der Innenschale und der Außenschale des FIG. 8 the connection between the inner shell and the outer shell of the
Wandelements in perspektivischer Ansicht, wobei die Betonmasse der Außenschale zeichnerisch ausgeblendet (oder transparent gemacht) wurde,  Wall element in perspective view, wherein the concrete mass of the outer shell was graphically hidden (or made transparent),
FIG. 9 eine Draufsicht von oben auf die Verbindung zwischen der Innenschale und der Außenschale des Wandelements, FIG. 9 is a top plan view of the connection between the inner shell and the outer shell of the wall element,
FIG. 10 von oben nach unten verschiedene Zwischenstadien bei der Verbindung zweier nebeneinander aufgestellter Wandelemente in jeweils perspektivischer Ansicht, FIG. 10 from top to bottom different intermediate stages in the connection of two juxtaposed wall elements in each perspective view,
FIG. 1 1 ein weiteres Zwischenstadium bei der Verbindung zweier nebeneinander aufgestellter Wandelemente, nämlich beim Vergießen der vertikalen Stoßfuge zwischen den beiden Wandelementen, FIG. 12 einen Ausschnitt der in FIG. 2 dargestellten Bewehrung in seitlicher Draufsicht, FIG. 1 1 another intermediate stage in the connection of two juxtaposed wall elements, namely the casting of the vertical butt joint between the two wall elements, FIG. 12 is a detail of FIG. 2 shown reinforcement in lateral plan view,
FIG. 13 ein Detail der Fugenbewehrung in der vertikalen Stoßfuge zweier nebeneinander aufgestellter Wandelemente in perspektivischer Ansicht, FIG. 13 is a detail of the joint reinforcement in the vertical butt joint of two side-by-side wall elements in a perspective view,
FIG. 14 einen Querschnitt durch die Verbindungsregion zweier übereinander aufgestellter Wandelemente, und FIG. 14 shows a cross section through the connecting region of two superimposed wall elements, and
FIG. 15 einen Längsschnitt durch die Verbindungsregion zweier übereinander aufgestellter Wandelemente. FIG. 15 is a longitudinal section through the connecting region of two superimposed wall elements.
Im Folgenden beziehen sich alle Positions- und Richtungsangaben wie„oben", „unten",„vertikal",„horizontal" usw. auf die in den Figuren dargestellte übliche Einbauposition der Wandelemente. In the following, all position and direction information such as "top", "bottom", "vertical", "horizontal", etc. refer to the usual installation position of the wall elements shown in the figures.
FIG. 1 zeigt in perspektivischer Ansicht ein in Sandwichbauweise gefertigtes quaderförmiges Wandelement 2, beispielsweise zur Verwendung in einem Kernkraft- werksgebäude. Das zur Anordnung in einer Seitenwand eines Gebäudes vorgesehene und im Regelfall eine komplette Geschosshöhe ausbildende Wandelement 2 weist eine als Stahlbetonkonstruktion errichtete Innenschale 4, eine entsprechende Außenschale 6 und eine dazwischen liegende Kernfüllung 8, beispielsweise aus Schwerbeton, auf. Die Innenschale 4 und die Außenschale 6 sind jeweils annähernd spiegelbildlich zueinander in ansonsten gleichartiger Weise aufgebaut, wie weiter unten noch näher beschrieben wird. Am oberen Rand ragen aus der Außenschale 4 und aus der Innenschale 6 mehrere Verbindungselemente 10 zur Ausbildung von Schraubverbindungen zum darüber liegenden Wandelement (hier nicht sichtbar) heraus. An der (hier verdeckten) Unterseite des Wandelements 2 sind in entsprechender Weise dazu funktionell komplementäre Verbindungselemente angeordnet. Außerdem sind unten im Bereich der jeweiligen Frontfläche 12 der Innenschale 4 und der Außenschale 6 Eingriffsöffnungen 14 zur Bewerkstelli- gung der Verschraubungen bei der Montage des Wandelementsystems vorhanden. Die Eingriffsöffnungen 14 durchsetzen jeweils nach Art eines Kanals den Querschnitt der Innenschale 4 bzw. der Außenschale 6. An den beiden seitlichen Rändern ragen Bewehrungsschlaufen / U-förmige Bügel, kurz U-Bügel 16, mit ihrem Bogenende aus der Innenschale 4 und der Außenschale 6 des Wandelementes 2 heraus, die zur Ausbildung der Anschlüsse zu daneben liegenden Wandelementen (hier nicht sichtbar) vorgesehen sind. FIG. 1 shows a perspective view of a sandwich-type cuboid wall element 2, for example for use in a nuclear power plant building. The intended for arrangement in a side wall of a building and usually a complete floor height forming wall element 2 has a constructed as a reinforced concrete structure inner shell 4, a corresponding outer shell 6 and an intermediate core filling 8, for example, heavy concrete, on. The inner shell 4 and the outer shell 6 are each approximately mirror images of each other in an otherwise similar manner, as will be described in more detail below. At the top of the outer shell 4 and from the inner shell 6 protrude a plurality of connecting elements 10 for the formation of screw to the overlying wall element (not visible here) out. At the (hidden here) underside of the wall element 2 functionally complementary connecting elements are arranged in a corresponding manner. In addition, at the bottom in the area of the respective front surface 12 of the inner shell 4 and the outer shell 6, there are engagement openings 14 for the adjustment. tion of the fittings during assembly of the wall element system available. At the two lateral edges project reinforcing loops / U-shaped bracket, short U-bracket 16, with its bow end of the inner shell 4 and the outer shell. 6 of the wall element 2 out, which are provided to form the connections to adjacent wall elements (not visible here).
FIG. 2 veranschaulicht den Aufbau der Innenschale 4 des Wandelements 2, gewissermaßen in einer ersten Phase beim Aufbau des inneren Bewehrungskorbs, noch vor dem Gießen des Betons. Das rechts daneben liegende, im fertig gestellten Zustand dargestellte Wandelement sowie die teilweise vergossen Fuge sind einstweilen wegzudenken (sie sind aus Gründen der Bildgenerierung mit Hilfe eines CAD-Programms vorhanden, wobei aus der kompletten Konstruktion einzelne Layer selektiv ausgeblendet wurden). Die Außenschale 6 ist wie bereits erwähnt analog zur Innenschale 4 aufgebaut. FIG. FIG. 2 illustrates the structure of the inner shell 4 of the wall element 2, in a sense in a first phase in the construction of the inner reinforcement cage, before the casting of the concrete. The wall element next to it on the right side, as well as the partially potted gap, are indispensable for a while (they are available for image generation with the aid of a CAD program, whereby individual layers have been selectively masked out of the complete construction). The outer shell 6 is constructed as already mentioned analogous to the inner shell 4.
Die auch als Biegebewehrung bezeichnete, zur Aufnahme und Weiterleitung von Zugkräften im Verbund der Wandelemente 2 ausgelegte Hauptbewehrung 18 um- fasst ein in der Erstreckungsebene des Wandelementes 2 liegendes rechteckiges Gitter aus horizontalen Bewehrungsstäben 20 (in FIG. 2 sind nur die untersten beiden dargestellt) und vertikalen Bewehrungsstäben 22, die sich an den Kreuzungspunkten berühren und dort beispielsweise mit Draht umflochten und so gegeneinander fixiert sind. Die horizontal und somit parallel zur oberen und unteren randseitigen Kante des Wandelements 2 ausgerichteten Bewehrungsstäbe 20 sind äquidistant zueinander angeordnet, ebenso die vertikal und somit parallel zu den Seitenkanten des Wandelements 2 ausgerichteten Bewehrungsstäbe 22. Der Stabdurchmesser beträgt in beiden Fällen - horizontal und vertikal - bevorzugt rund 30 bis 35 mm. Der Abstand zwischen den Längsachsen der Bewehrungsstäbe 20, 22 beträgt in beiden Fällen vorzugsweise rund 200 mm (quadratisches Gitter). Je zwei in horizontaler Richtung aufeinanderfolgende, an ihren oberen Enden jeweils mit einem Schraubgewinde versehene vertikale Bewehrungsstäbe 22 sind in zugehörige Aufnahmen eines Verbindungsstücks 24 geschraubt, alternativ darin verschweißt. In eine dazwischen liegende zentrale Aufnahme des Verbindungsstücks 24 ist ein nach oben aus dem Gitterverbund hervorstehender, ebenfalls mit einem Außengewinde versehener Anschlussbolzen 26 geschraubt. Auf den vertikal ausgerichteten Anschlussbolzen 26 lässt sich von oben eine mit einer Zentral- ausnehmung versehene Halteplatte 28 aufschieben und darüber eine Mutter 30 aufschrauben. Am unteren Ende des auf diese Weise miteinander verbundenen Stabpaares ist ein aus vier miteinander verschweißten Stahlplatten zusammengesetzter oder alternativ in einem Stück gegossener, im Querschnitt rechteckiger Kasten 32 (Box) aus Stahl vorhanden, der passgenau zwischen den zwei vertikalen Bewehrungsstäben 22 angeordnet und mit ihnen an der Außenseite verschweißt, alternativ verschraubt ist. Die Anordnung der Verbindungsstücke 24 und der Kästen 32 ist so gewählt, dass sie beim späteren Gießen der Betonmasse bündig mit dem oberen bzw. unteren Rand der Innenschale 4 abschließen, so dass nur der obere Teil der Anschlussbolzen 26 oben herausragt. Ferner sind die Kästen 32 derart in den Beton eingebettet, dass der quaderförmige Innenraum des jeweiligen Kastens 32 sowie ein im Wesentlichen quaderförmiger Montageraum unmittelbar darüber frei bleibt. Der so jeweils insgesamt gebildete, zusammenhängende Hohlraum ist einerseits von unten über die frei bleibende untere Kastenöffnung als auch von der Frontseite 12 über die ebenfalls frei bleibende Eingriffsöffnung 14 zugänglich (siehe auch FIG. 1 ). The main reinforcement 18, which is also referred to as a bending reinforcement and designed to receive and transmit tensile forces in combination with the wall elements 2, comprises a rectangular grid of horizontal reinforcing bars 20 (in FIG. 2 only the lowermost two are shown) and in the plane of extent of the wall element 2 vertical reinforcing bars 22, which touch each other at the crossing points where they are braided with wire, for example, and thus fixed against each other. The horizontal and thus parallel to the upper and lower edge edge of the wall element 2 aligned reinforcing bars 20 are arranged equidistant from each other, as well as the vertically and thus aligned parallel to the side edges of the wall element 2 reinforcing bars 22. The bar diameter is in both cases - horizontal and vertical - preferred around 30 to 35 mm. The distance between the longitudinal axes of the reinforcing bars 20, 22 is in both cases preferably about 200 mm (square grid). Two vertically successive horizontal reinforcing bars 22, each provided with a screw thread in the horizontal direction, are screwed into associated receptacles of a connecting piece 24, alternatively welded therein. In an intermediate central receptacle of the connecting piece 24 is an upwardly projecting from the grid composite, also provided with an external thread connecting bolt 26 is screwed. On the vertically aligned connecting bolt 26, a retaining plate 28 provided with a central recess can be pushed from above and a nut 30 screwed on above it. At the lower end of the pair of rods thus connected to each other, there is a steel box 32 (box), composed of four welded steel plates welded together or alternatively cast in one piece, rectangular in cross-section and fitted between and fitting the two vertical reinforcing bars 22 the outside welded, alternatively screwed. The arrangement of the connecting pieces 24 and the boxes 32 is selected so that they conclude flush with the upper or lower edge of the inner shell 4 in the subsequent casting of the concrete mass, so that only the upper part of the connecting bolt 26 protrudes above. Further, the boxes 32 are embedded in the concrete such that the cuboid interior of the respective box 32 and a substantially cuboid mounting space remains immediately above free. The thus formed in each case, coherent cavity is accessible on the one hand from below via the remaining free lower box opening as well as from the front side 12 via the likewise remaining free engagement opening 14 (see also FIG. 1).
Damit ist insgesamt ein System von Verbindungselementen 10 ausgebildet, mit deren Hilfe sich bei der späteren Montage des Bauwerks übereinander liegende Wandelemente 2 verschrauben lassen. Dazu wird das obere Wandelement 2 derart auf das darunter liegende Wandelement 2 abgesetzt, dass die oberen Enden der Anschlussbolzen 26 des unteren Wandelements 2 jeweils die zugeordneten Kästen 32 des Gegenstücks durchgreifen. Anschließend werden durch die Eingriffsöffnungen 14 in der Frontseite 14 der Innenschale 4 (und analog bei der Außenschale 6) die Halteplatten 28, welche die Kästen 32 an deren oberen Kanten seitlich übergreifen, auf die Enden der Anschlussbolzen 26 aufgeschoben und durch Aufschrauben und Festziehen der Muttern 30 gesichert / verspannt. Die Halteplatten 28 übernehmen dabei gewissermaßen die Funktion von Unterlegscheiben. Der Querschnitt der Kästen 32 ist so gewählt, dass der jeweilige Anschlussbolzen 26 darin bei der Montage in alle Richtungen ein paar Millimeter Spiel hat, um so eventuelle Maßungenauigkeiten bei der späteren Montage auf der Baustelle auszugleichen. Dies entspricht der bereits in der internationalen Offenlegungsschrift WO 2012 / 123067 A1 der AREVA NP GmbH beschriebenen Auslegungsphilosophie. Anzumerken ist noch, dass in FIG. 1 und FIG. 2 zwar des besseren Überblicks halber die Halteplatten 28 und die Muttern 30 in ihrer Montageendposition auf den Anschlussbolzen 26 dargestellt sind, dass diese in Wirklichkeit aber erst nach dem Aufstellen der Wände und dem Zusammenfügen der jeweiligen Verbindungspartner dort angebracht und festgeschraubt werden. Thus, a total of a system of connecting elements 10 is formed, with the help of which can be screwed in the later assembly of the building superimposed wall elements 2. For this purpose, the upper wall element 2 is placed on the underlying wall element 2 such that the upper ends of the connecting bolts 26 of the lower wall element 2 respectively pass through the associated boxes 32 of the counterpart. Subsequently, the holding plates 28, which laterally overlap the boxes 32 at their upper edges, are pushed onto the ends of the connecting bolts 26 by the engaging openings 14 in the front side 14 of the inner shell 4 (and analogously in the outer shell 6) secured by screwing and tightening the nuts 30 / clamped. The holding plates 28 take on the function of washers so to speak. The cross-section of the boxes 32 is selected so that the respective connecting bolt 26 therein has a few millimeters of play during assembly in all directions so as to compensate for any dimensional inaccuracies in the subsequent assembly on the construction site. This corresponds to the design philosophy already described in International Publication WO 2012/123067 A1 of AREVA NP GmbH. It should also be noted that in FIG. 1 and FIG. 2 Although the sake of clarity, the holding plates 28 and the nuts 30 are shown in their final assembly position on the connecting bolt 26, but that they are in fact attached and screwed there only after the erection of the walls and the joining of the respective connection partners.
Zurück zum Aufbau der Innenschale 4 gemäß FIG. 2. Außer der Hauptbewehrung 18 ist noch eine Oberflächenbewehrung 34, ebenfalls in Gestalt sich kreuzender, gitterartig angeordneter Bewehrungsstäbe 36, 38 mit einem Durchmesser von rund 100 mm und mit gleicher Maschengröße wie beim Hauptgitter vorhanden (quadratisches Gitter mit einem Stababstand von etwa 200 mm). Das aus den horizontalen Bewehrungsstäben 36 und den vertikalen Bewehrungsstäben 38 gebildete Gitter der Oberflächenbewehrung 34 ist parallel zum Gitter der Hauptbewehrung 18 angeordnet, und zwar in einem Abstand in Richtung zur (hier rückwärtigen) Frontseite 14 der Innenschale 4. In lateraler Richtung sind die Kreuzungspunkte der beiden Bewehrungsgitter bevorzugt um eine halbe Maschenlänge gegeneinander versetzt. Die Kreuzungspunkte der Oberflächenbewehrung 34 liegen also im Zentrum der Maschen der Hauptbewehrung 18 und umgekehrt (siehe auch FIG. 12). Return to the structure of the inner shell 4 according to FIG. 2. Except the main reinforcement 18 is still a surface reinforcement 34, also in the form of intersecting, lattice-like arranged reinforcing bars 36, 38 with a diameter of about 100 mm and with the same mesh size as the main grid available (square grid with a bar spacing of about 200 mm) , The grid of the surface reinforcement 34 formed from the horizontal reinforcing bars 36 and the vertical reinforcing bars 38 is arranged parallel to the grid of the main reinforcement 18, at a distance in the direction of the (here rear) front side 14 of the inner shell 4. In the lateral direction, the crossing points of both reinforcing grid preferably offset by half a mesh length against each other. The points of intersection of the surface reinforcement 34 thus lie in the center of the meshes of the main reinforcement 18 and vice versa (see also FIG. 12).
Des Weiteren sind an den Seitenkanten der Innenschale 4 wie bereits erwähnt nach außen abstehende U-Bügel 16 oder (Bewehrungs-) Schlaufen aus Stahl für die spätere Ausbildung und Fixierung der seitlichen Wandelement-Stöße angebracht. Die einzelnen U-Bügel 16 weisen zwei horizontal und parallel zur Längser- streckungsrichtung des späteren Wandelements 2 verlaufende Schenkel 40 auf, die im Zwischenraum zwischen der Hauptbewehrung 18 und der Oberflächenbe- wehrung 34 liegen und bevorzugt die vertikalen Bewehrungsstäbe 22 der Hauptbewehrung 18 berühren (an den Berührpunkten gemeinsam mit Draht umflochten sind), und zwar auf derjenigen Seite, auf der auch die horizontalen Bewehrungsstäbe 20 angeordnet sind. Der eine Schenkel 40 des jeweiligen U-Bügels 16 liegt dabei oberhalb des ihm zugeordneten horizontalen Bewehrungsstabes 20 der Hauptbewehrung 18, der andere unterhalb. Mit anderen Worten liegt jeder der horizontalen Bewehrungsstäbe 20 der Hauptbewehrung 18 in der Mitte zwischen den beiden Schenkeln 40 eines koplanar ausgerichteten U-Bügels 16 (siehe auch FIG. 12). Die innerhalb der Innenschale 4 befindlichen Abschnitte der Schenkel 40 sind vergleichsweise lang gehalten und erstrecken sich hier im Beispiel über mehr als vier Gittermaschen der Hauptbewehrung 18, also über mehr als 800 bis 1 .000 mm. Die nach außen herausragenden Abschnitte haben in horizontaler Richtung gesehen inklusive des endseitigen Bogens 42 jeweils eine Länge von bevorzugt rund 400 mm. Die spätere Montage und Verbindung im Bereich der vertikal verlaufenden Stoßfuge zwischen zwei Wandelementen 2 wird weiter unten näher beschrieben. Furthermore, at the side edges of the inner shell 4 as already mentioned outwardly projecting U-bracket 16 or (reinforcement) loops made of steel for the subsequent training and fixation of the lateral wall element shocks attached. The individual U-brackets 16 have two legs 40 extending horizontally and parallel to the longitudinal extension direction of the later wall element 2, said legs 40 being arranged in the intermediate space between the main reinforcement 18 and the surface reinforcement. 34 and preferably the vertical reinforcing bars 22 of the main reinforcement 18 touch (at the contact points are braided together with wire), on the side on which the horizontal reinforcing bars 20 are arranged. The one leg 40 of the respective U-bracket 16 lies above the associated horizontal reinforcing bar 20 of the main reinforcement 18, the other below. In other words, each of the horizontal reinforcing bars 20 of the main reinforcement 18 is located midway between the two legs 40 of a coplanar U-bar 16 (see also FIG. 12). The located within the inner shell 4 sections of the legs 40 are held comparatively long and extend here in the example over more than four meshes of the main reinforcement 18, so over more than 800 to 1, 000 mm. The outwardly projecting portions have seen in the horizontal direction including the end-side arc 42 each have a length of preferably about 400 mm. The subsequent assembly and connection in the region of the vertically extending butt joint between two wall elements 2 will be described in more detail below.
Schließlich weist die Bewehrung der Innenschale 4 rechtwinklig abgewinkelte (etwa gebogene oder in dieser Form gegossene) U-Bügel 44 oder Schlaufen aus Stahl auf, deren Schenkelende 46 jeweils im Zwischenraum zwischen der Hauptbewehrung 18 und der Oberflächenbewehrung 34 liegt. Die vergleichsweise kurzen, sich über weniger als oder maximal eine Gittermasche erstreckenden Schenkelabschnitte des Schenkelendes 46 liegen parallel zu den horizontalen Bewehrungsstäben 20 der Hauptbewehrung 18. Das Bogenende 48 dieser U-Bügel 44 steht senkrecht von der der Frontseite 14 gegenüber liegenden Rückseite 50 ab und ragt mindestens 200 mm in die spätere Kernfüllung 8 hinein. Dabei umgreift / hintergreift der jeweilige U-Bügel 44 an der Abwinklung bzw. Knick- oder Biegestelle 52 einen der vertikalen Bewehrungsstäbe 22 der Hauptbewehrung 18 und berührt diesen dort. Dies ist gut in FIG. 3 und FIG. 4 zu erkennen, die einen entsprechenden Längsschnitt durch das spätere Wandelement 2 darstellen. Auf diese Weise ist zumindest einigen Maschen, bevorzugt den meisten Maschen, vorzugsweise jeder Masche der Hauptbewehrung 18 ein derartiger U-Bügel 44 zugeordnet. Das ist in FIG. 5 zu erkennen, die den vollständigen Aufbau des Bewehrungs- Verbundes der Innenschale 4 kurz vor der Betonierung zeigt. In FIG. 6 ist der Zustand nach der Betonierung dargestellt. Finally, the reinforcement of the inner shell 4 at right angles angled (about curved or cast in this form) U-bracket 44 or loops made of steel, the leg end 46 is in each case in the space between the main reinforcement 18 and the surface reinforcement 34. The comparatively short leg sections of the leg end 46, which extend over less than or at most one grid mesh, lie parallel to the horizontal reinforcing bars 20 of the main reinforcement 18. The bow end 48 of these U-brackets 44 projects perpendicularly from the rear side 50 opposite the front side 14 and protrudes at least 200 mm in the subsequent core filling 8 inside. In this case, the respective U-bracket 44 engages / engages behind the bend or bend or bending point 52 one of the vertical reinforcing bars 22 of the main reinforcement 18 and touches it there. This is good in FIG. 3 and FIG. 4, which represent a corresponding longitudinal section through the later wall element 2. In this way, at least some stitches, preferably most stitches, preferably each stitch of the main reinforcement 18 associated with such a U-bracket 44. This is in FIG. 5, showing the complete structure of the reinforcement Composite of the inner shell 4 just before concreting shows. In FIG. 6, the state after concreting is shown.
Nachdem die Innenschale 4 gemäß FIG. 6 und eine entsprechend aufgebaute Außenschale 6 hergestellt wurden, werden diese mit Hilfe der in die spätere Kernfüllung 8 hineinragenden U-Bügel 44 zu einem Wandelement 2 miteinander verbunden. Dazu werden die beiden Schalen 4, 6 in die gewünschte Relativposition zueinander gebracht, so dass jeweils das Bogenende 48 eines U-Bügels 44 der Innenschale 4 und eines U-Bügels 44 der Außenschale 6 direkt nebeneinander liegen und sich die geraden Schenkelabschnitte dort überlappen und berühren. Dabei umschließen die Bögen der beiden U-Bügel 44 eine im Wesentlichen O- förmige Öffnung 54. Dies ist gut in FIG. 7 oder FIG. 8 zu sehen, wobei in FIG. 8 für eine bessere Sicht die Betonfüllung der Außenschale 6 zeichnerisch ausgeblendet wurde. Man erkennt auch, dass die U-Bügel 44 in Reihen angeordnet sind, wobei die O-förmigen Öffnungen 54 oder Schlaufen einer Reihe in Horizontalrichtung gesehen in einer Flucht liegen. In Vertikalrichtung gesehen sind mehrere diesen Reihen übereinander liegend über die komplette Höhe des Wandelements 2 hinweg gleichmäßig verteilt angeordnet (hier sind zur Vereinfachung nur zwei Reihen dargestellt). In jede dieser Reihen werden zwei Bewehrungsstäbe 56 eingeschoben, die sich über die komplette Breite des Wandelements 2 erstrecken und entsprechend der Bügelanordnung horizontal ausgerichtet sind. Der eine Bewehrungsstab 56 ist entsprechend dem durch die O-förmigen Öffnungen 54 der Bügelanordnung gewährten Freiraum zur Innenschale 4 hin orientiert, der andere zur Außenschale 6 hin. Die Bewehrungsstäbe 56 berühren dabei die entsprechenden Bögen der U-Bügel 44 von innen in deren Scheitelpunkten. After the inner shell 4 according to FIG. 6 and a correspondingly constructed outer shell 6 were prepared, these are connected to each other with the help of the projecting into the subsequent core filling 8 U-bracket 44 to a wall element 2. For this purpose, the two shells 4, 6 are brought into the desired relative position to each other, so that in each case the bow end 48 of a U-bracket 44 of the inner shell 4 and a U-bracket 44 of the outer shell 6 are directly adjacent to each other and the straight leg sections overlap there and touch , In this case, the arches of the two U-brackets 44 enclose a substantially O-shaped opening 54. This is good in FIG. 7 or FIG. 8, wherein in FIG. 8 for a better view of the concrete filling of the outer shell 6 was hidden graphically. It can also be seen that the U-brackets 44 are arranged in rows, wherein the O-shaped openings 54 or loops of a row are in alignment in the horizontal direction. Seen in the vertical direction, several of these rows are arranged one above the other over the entire height of the wall element 2, evenly distributed (only two rows are shown here for the sake of simplicity). In each of these rows two reinforcing rods 56 are inserted, which extend over the entire width of the wall member 2 and are aligned horizontally according to the bracket assembly. The one reinforcing bar 56 is oriented in accordance with the free space provided by the O-shaped openings 54 of the bracket arrangement to the inner shell 4, the other to the outer shell 6 out. The reinforcing bars 56 touch the corresponding arcs of the U-bracket 44 from the inside in their vertices.
Nach dem Einbringen aller Bewehrungsstäbe 56 in den Zwischenraum zwischen Innenschale 4 und Außenschale 6 wird die Kernfüllung 8 gegossen. Die Kernfüllung 8 kann aus Schwerbeton hergestellt werden, wobei etwaig vorgegebene Anforderungen an die Abschirmwirkung gegenüber radioaktiver Strahlung zu berücksichtigen sind. Die Schwerbetonkernfüllung wird auch zum Lastabtrag der Lasten herangezogen (nämlich von Druckbelastungen im Elementverbund). Zur Herstellung eines hochwertigen Verbundes sollten die Betonflächen, die über den Ver- guss eine Verbindung erfahren, eine korngerüstfreigesetzte Oberfläche aufweisen. Beton ist ein mineralischer Baustoff und kann als künstliches Gestein betrachtet werden. Er besteht aus einem Gemisch von Zement, Zuschlag und Wasser. Als Zuschlag werden hauptsächlich Sand, Kies und Splitt verwendet. Er wird erst kurz vor dem Einbau in die formgebende Schalung eingebracht. Als Zuschlagstoffe für Normalbeton werden vorwiegend natürliche Stoffe wie Kies aus Ablagerungen o- der gebrochenes Gestein (Schotter, Splitt) verwendet. Der Zuschlag bestimmt wesentlich die Verarbeitbarkeit und Festigkeit des Betons. Durch eine geeignete Abstufung von unterschiedlichen Zuschlagskorngrößen wird eine möglichst dichte Packung der Körner mit wenigen Hohlräumen, in denen sich der Zementleim befindet, angestrebt. Die dichte Packung ermöglicht die Lastabtragung im Beton über das Korngerüst. After the introduction of all reinforcing bars 56 in the space between the inner shell 4 and outer shell 6, the core filling 8 is poured. The core filling 8 can be made of heavy concrete, taking into account any predetermined requirements for the shielding effect against radioactive radiation. The heavy concrete core filling is also used for load transfer of the loads (namely, pressure loads in the element composite). In order to produce a high-quality composite, the concrete surfaces exceeding the experienced a connection, have a grain scaffold released surface. Concrete is a mineral building material and can be considered as artificial rock. It consists of a mixture of cement, aggregate and water. As a supplement mainly sand, gravel and grit are used. It is introduced into the forming formwork shortly before installation. Natural aggregates such as gravel from deposits or crushed rock (gravel, grit) are mainly used as aggregates for normal concrete. The addition significantly determines the processability and strength of the concrete. By a suitable grading of different aggregate sizes a dense packing of grains with few cavities in which the cement paste is sought. The dense packing allows the load transfer in the concrete through the grain stand.
Nach dem Aushärten der Kernfüllung 8 wirkt der in FIG. 1 dargestellte Verbund aus Außenschale 6, Kernfüllung 8 und Innenschale 4 wie ein monolithisches Objekt. Die Innenschalen 4 und die Außenschalen 6 haben eine Wandstärke S von jeweils vorzugsweise mindestens 240 mm. Die Stärke / Dicke T der Kernfüllung ist variabel. Sie kann beispielsweise variieren zwischen 200 und rund 550 mm. Dementsprechend hat das Wandelement 2 insgesamt eine Dicke D im Bereich von rund 700 mm bis zu 1 .000 mm oder etwas mehr. Siehe hierzu auch die Aufsicht auf das Wandelement 2 gemäß FIG. 9, in der die Kernfüllung 8 noch nicht vorhanden ist. After curing of the core filling 8 acts in FIG. 1 illustrated composite of outer shell 6, core filling 8 and inner shell 4 as a monolithic object. The inner shells 4 and the outer shells 6 have a wall thickness S of preferably at least 240 mm. The thickness T of the core filling is variable. For example, it can vary between 200 and around 550 mm. Accordingly, the wall element 2 has a total thickness D in the range of about 700 mm to 1, 000 mm or slightly more. See also the plan view of the wall element 2 according to FIG. 9, in which the core filling 8 is not yet available.
In FIG. 10 sind von oben nach unten die verschiedenen Schritte beim Zusammenfügen und Verbinden von zwei nebeneinander liegenden Wandelementen 2 auf der Baustelle dargestellt. Zunächst werden die beiden Wandelemente 2 in die gewünschte Position relativ zueinander gebracht, in welcher sich die randseitigen U- Bügel 16 der Innenschale 4 einerseits und der Außenschale 6 andererseits paarweise überlappen und berühren. Der Bogen des jeweiligen Bügels 16 berührt dabei die Schalenkante des angrenzenden Wandelementes 2. Mit anderen Worten durchsetzen die aus der Betonmasse herausragenden Bügelabschnitte die vertikal verlaufende Stoßfuge 58 zwischen den beiden Wandelementen 2 vollständig über deren Breite hinweg. Anschließend werden verschließbare Klammern 60 oder Schienen aus Stahl über die gepaarten U-Bügel 16 geschoben. Die Klammern 60 bilden im Montageendzustand jeweils einen geschlossenen Rechteckrahmen, dessen Längsstreben 64 horizontal und senkrecht zur Gitterebene der Hauptbewehrung 18 (und damit auch senkrecht zu den U-Bügeln 16) ausgerichtet sind, und dessen Querstreben 66 vertikal ausgerichtet sind. Der Rechteckrahmen umgreift / umspannt die beiden ihm zugeordneten, auf gleicher Höhe liegenden Bügelpaare der Innenschalen 4 und der Außenschalen 6 von zwei nebeneinander angeordneten Wandelementen 2 und berührt diese von außen. Dabei sind jedem Bügelpaar mehrere, hier vier, in vorzugsweise gleichem Abstand nebeneinander liegende, parallel zueinander ausgerichtete Klammern 60 zugeordnet (siehe auch FIG. 13). In FIG. 10 are shown from top to bottom the various steps in assembling and connecting two adjacent wall elements 2 on the construction site. First, the two wall elements 2 are brought into the desired position relative to each other, in which the peripheral U-bracket 16 of the inner shell 4 on the one hand and the outer shell 6 on the other hand overlap in pairs and touch. The bow of the respective bracket 16 thereby touches the shell edge of the adjacent wall element 2. In other words, the bracket sections protruding from the concrete mass pass through the vertically extending butt joint 58 between the two wall elements 2 completely over their width. Subsequently, lockable brackets 60 or rails of steel are slid over the paired U-brackets 16. The brackets 60 form in the final assembly state in each case a closed rectangular frame whose longitudinal struts 64 horizontally and perpendicular to the lattice plane of the main reinforcement 18 (and thus also perpendicular to the U-brackets 16) are aligned, and the transverse struts 66 are vertically aligned. The rectangular frame surrounds / embraces the two associated with him, lying at the same level bracket pairs of inner shells 4 and the outer shells 6 of two juxtaposed wall elements 2 and touches them from the outside. Here are each pair of brackets several, here four, in preferably the same distance next to each other, parallel aligned brackets 60 assigned (see also FIG. 13).
In der Draufsicht auf die vertikale Stoßfuge 58 wird diese durch die U-Bügel 16 und die Klammern 60 in kleinere rechteckige Zwischenräume unterteilt, die in Richtung der Höhenerstreckung des Wandelements in einer Flucht liegen. Es bilden sich somit gewissermaßen voneinander abgegrenzte vertikale Teilkanäle innerhalb der Fugenbewehrung aus, in die in einem weiteren Schritt vertikal ausgerichtete Bewehrungsstäbe 62, hier drei Stück, eingeschoben werden. In the plan view of the vertical butt joint 58, this is divided by the U-bracket 16 and the brackets 60 into smaller rectangular spaces, which lie in the direction of the vertical extent of the wall element in alignment. Thus, in a sense, mutually delimited vertical sub-channels within the joint reinforcement are formed, in which in a further step vertically aligned reinforcing bars 62, in this case three pieces, are inserted.
Schließlich wird die dermaßen bewehrte, vorteilhafterweise nicht wesentlich mehr als 400 mm breite vertikale Stoßfuge 58 mit Beton vergossen, und zwar bevorzugt mit feinkörnigem Beton von vergleichbarer Güte wie der Beton der Innenschalen 4 und Außenschalen 6 der Wandelemente 2 (Betonqualität C 50/60 oder besser). Ein Zwischenstadium beim Gießvorgang ist schematisch in FIG. 1 1 darstellt. Finally, the thus reinforced, advantageously not significantly more than 400 mm wide vertical joint 58 is cast with concrete, preferably with fine-grained concrete of comparable quality as the concrete of the inner shells 4 and outer shells 6 of the wall elements 2 (concrete quality C 50/60 or better ). An intermediate stage in the casting process is shown schematically in FIG. 1 1 represents.
Die Zugkraftübertragung in der horizontalen Fuge zwischen zwei übereinander angeordneten Wandelementen 2 erfolgt wie bereits beschrieben über Verschrau- bung der vertikalen Hauptbewehrung 18. The transmission of tensile force in the horizontal joint between two superimposed wall elements 2 takes place, as already described, by screwing the vertical main reinforcement 18.
Die horizontale Fuge 68 (Lagerfuge) zwischen zwei Wandelementen 2, die - durch flache Abstandshalter 70 voneinander beabstandet - übereinander aufgestellt werden, ist etwa 50 mm hoch und wird nach dem Aufstellen der Wände mit einem hochwertigen Vergussmörtel vergossen. Die Öffnungen für die Verschraubung der Verbindungselemente 10 werden ebenfalls für den Endzustand vergossen. The horizontal joint 68 (storage joint) between two wall elements 2, which - by flat spacers 70 spaced from each other - are placed one above the other, is about 50 mm high and is after setting up the walls with a high-quality grouting mortar shed. The openings for the screw connection of the connecting elements 10 are also cast for the final state.
Alle Wandelemente 2 werden auf die beschriebene Weise unverschiebbar miteinander verbunden und bilden als Ganzes eine schubfeste Konstruktion, die die vorteilhaften Eigenschaften eines monolithischen Platten-Scheiben-Elementes aufweist. Die Kraftübertragung zwischen den einzelnen Bauteilen ist durch spezifisch ausgebildete Verbindungen und Anschlüsse (zug- und schubfeste Verbindungen) gewährleistet. All wall elements 2 are immovably connected to each other in the manner described and form as a whole a shear-resistant construction, which has the advantageous properties of a monolithic plate-disc element. The power transmission between the individual components is ensured by specifically designed connections and connections (tensile and shear-resistant connections).
Es versteht sich, dass zahlreiche Variationen der Wandelemente möglich sind, um beispielsweise Deckenanschlüsse, T-Stöße zwischen Außen- und Innenwänden, Eckverbindungen usw. zu ermöglichen. It is understood that numerous variations of the wall elements are possible, for example, to allow ceiling connections, T-joints between outer and inner walls, corner joints, etc.
Neben einer Verwendung der beschriebenen Wandelemente und Verbindungstechniken im nuklearen Kraftwerksgebäudebau ist natürlich auch eine Anwendung bei anderen Gebäuden mit ähnlich hohen Anforderungen (z. B. Militärgebäude, Industrieanlagengebäude etc.) möglich. In addition to use of the described wall elements and connection techniques in nuclear power plant building construction, of course, an application in other buildings with similar high demands (eg military buildings, industrial plant buildings, etc.) is possible.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
2 Wandelement 2 wall element
4 Innenschale  4 inner shell
6 Außenschale  6 outer shell
8 Kernfüllung  8 core filling
10 Verbindungselement  10 connecting element
12 Frontseite (der jeweiligen Schale)  12 front side (the respective shell)
14 Eingriffsöffnung  14 engagement opening
16 Bewehrungsschlaufe / U-Bügel (seitlicher Anschluss) 16 reinforcement loop / U-bracket (side connection)
18 Hauptbewehrung 18 main reinforcement
20 horizontaler Bewehrungsstab (Hauptbewehrung) 20 horizontal reinforcing bar (main reinforcement)
22 vertikaler Bewehrungsstab (Hauptbewehrung) 22 vertical reinforcing bar (main reinforcement)
24 Verbindungsstück  24 connector
26 Anschlussbolzen  26 connecting bolts
28 Halteplatte  28 retaining plate
30 Mutter  30 mother
32 Kasten  32 box
34 Oberflächenbewehrung  34 surface reinforcement
36 horizontaler Bewehrungsstab (Oberflächenbewehrung) 36 horizontal reinforcing bar (surface reinforcement)
38 vertikaler Bewehrungsstab (Oberflächenbewehrung)38 vertical reinforcing bar (surface reinforcement)
40 Schenkel 40 thighs
42 Bogen  42 sheets
44 U-Bügel (zur Schalenverbindung)  44 U-bracket (for shell connection)
46 Schenkelende  46 leg end
48 Bogenende  48 bow end
50 Rückseite  50 back
52 Abwinklung / Knickstelle  52 bend / kink
54 O-förmige Öffnung  54 O-shaped opening
56 horizontaler Bewehrungsstab (Kernbewehrung) 56 horizontal reinforcing bar (core reinforcement)
58 vertikale Stoßfuge 58 vertical butt joint
60 Klammer  60 clip
62 vertikaler Bewehrungsstab (Fugenbewehrung) Längsstrebe 62 vertical reinforcing bar (joint reinforcement) longitudinal strut
Querstrebe crossmember
horizontale Fuge (Lagerfuge) Abstandshaiter horizontal joint (bearing joint) spacer

Claims

Ansprüche claims
1 . Als Betonfertigbauteil ausgebildetes Wandelement (2) zur Errichtung eines Bauwerks mit einem eine im Wesentlichen rechteckige Grundfläche und vier Rändern aufweisenden Wandkörper, der nach Art einer Sandwichbauweise eine Innenschale (4), eine Außenschale (6) und eine dazwischen liegende Kernfüllung (8) besitzt, wobei 1 . Wall element (2) designed as precast concrete element for erecting a building with a wall body having a substantially rectangular base area and four edges, which has a sandwich (an inner shell (4), an outer shell (6) and an intermediate core filling (8), in which
• die Innenschale (4) in Stahlbetonbauweise gefertigt ist und eine Hauptbewehrung (18) aus insgesamt gitterförmig angeordneten, jeweils parallel zu den Rändern verlaufenden horizontalen Bewehrungsstäben (20) und vertikalen Bewehrungsstäben (22) aufweist, welche die Innenschale (4) jeweils im Wesentlichen von Rand zu Rand durchdringen,  • The inner shell (4) is made of reinforced concrete and a main reinforcement (18) arranged in total lattice-shaped, each extending parallel to the edges horizontal reinforcing bars (20) and vertical reinforcing bars (22), which the inner shell (4) each of substantially Penetrate edge to edge,
• die vertikalen Bewehrungsstäbe (22) an ihren Enden mit Verbindungselementen (10) versehen sind, die zur Herstellung einer Schraub- oder Spannverbindung mit komplementären Verbindungselementen (10) eines darüber oder darunter liegenden Wandelements (2) ausgebildet sind,  The vertical reinforcing bars (22) are provided at their ends with connecting elements (10) which are designed to produce a screw or clamping connection with complementary connecting elements (10) of an above or below wall element (2),
• eine Mehrzahl von jeweils rechtwinklig abgewinkelten, ein Schenkelende (46) und ein Bogenende (48) aufweisenden U-Bügeln (44) vorhanden ist, die mit ihrem Schenkelende (46) in die Innenschale (4) eingegossen sind, wobei der jeweilige U-Bügel (44) im Bereich der Abwinklung (52) einen der vertikalen Bewehrungsstäbe (22) umgreift und mit seinem Bogenende (48) in die Kernfüllung (8) hineinragt, und  A plurality of each at right angles angled, a leg end (46) and an arc end (48) having U-brackets (44) is present, which are cast with its leg end (46) in the inner shell (4), wherein the respective U Bracket (44) in the region of the angled portion (52) surrounds one of the vertical reinforcing bars (22) and projects with its bow end (48) into the core filling (8), and
• die Außenschale (6) analog zu Innenschale (4) aufgebaut ist.  • The outer shell (6) is constructed analogously to the inner shell (4).
2. Wandelement nach Anspruch 1 , wobei im Wesentlichen jeder der Gitterschlaufen der Hauptbewehrung (18) ein in die Kernfüllung (8) hineinragender U- Bügel (44) zugeordnet ist. 2. Wall element according to claim 1, wherein substantially each of the grid loops of the main reinforcement (18) in the core filling (8) projecting U-bracket (44) is associated.
3. Wandelement (2) nach Anspruch 1 oder 2, wobei die U-Bügel (44) der Innenschale (4) und die U-Bügel (44) der Außenschale (6) sich an ihren Bogenen- den (48) paarweise überlappen und jeweils eine O-förmige Öffnung (54) umschließen, durch mindestens ein horizontaler Bewehrungsstab (56) als Bestandteil der Kernbewehrung hindurchgeführt ist. 3. wall element (2) according to claim 1 or 2, wherein the U-bracket (44) of the inner shell (4) and the U-bracket (44) of the outer shell (6) at their Bogenen- the (48) overlap in pairs and each enclosing an O-shaped opening (54) is passed through at least one horizontal reinforcing bar (56) as part of the core reinforcement.
4. Wandelement (2) nach einem der Ansprüche 1 bis 3, wobei eine parallel zur Hauptbewehrung (18) verlaufende Oberflächenbewehrung (34) vorhanden ist. 4. wall element (2) according to one of claims 1 to 3, wherein a parallel to the main reinforcement (18) extending surface reinforcement (34) is present.
5. Wandelement (2) nach Anspruch 4, wobei die Schenkelenden (46) der U- Bügel (44) zwischen der Hauptbewehrung (18) und der Oberflächenbewehrung (34) liegen. 5. wall element (2) according to claim 4, wherein the leg ends (46) of the U-bracket (44) between the main reinforcement (18) and the surface reinforcement (34) lie.
6. Wandelement (2) nach einem der Ansprüche 1 bis 5, wobei zur Herstellung einer Verbindung zu seitlich benachbarten Wandelementen (2) seitlich aus dem Wandkörper herausragende U-förmige Bewehrungsschlaufen (16) in die Innenschale (4) und in die Außenschale (6) eingegossen sind. 6. wall element (2) according to one of claims 1 to 5, wherein for the preparation of a connection to laterally adjacent wall elements (2) laterally from the wall body outstanding U-shaped reinforcing loops (16) in the inner shell (4) and in the outer shell (6 ) are poured.
7. Verbund von mehreren nebeneinander angeordneten Wandelementen (2), die jeweils gemäß Anspruch 6 ausgebildet sind, wobei die Bewehrungsschlaufen (16) von unmittelbar benachbarten Wandelementen (2) sich in der vertikalen Stoßfuge (58) paarweise überlappen, und wobei je ein Schlaufenpaar der Innenschale (4) mit einem Schlaufenpaar der Außenschale (6) durch eine Klammer (60) umspannt ist. 7. composite of a plurality of juxtaposed wall elements (2), each formed according to claim 6, wherein the reinforcing loops (16) of immediately adjacent wall elements (2) in the vertical butt joint (58) overlap in pairs, and wherein each pair of loops of Inner shell (4) with a pair of loops of the outer shell (6) by a clamp (60) is spanned.
8. Verbund nach Anspruch 7, wobei in der vertikalen Stoßfuge (58) mindestens ein vertikaler Bewehrungsstab (62) angeordnet ist. 8. The composite of claim 7, wherein in the vertical butt joint (58) at least one vertical reinforcing bar (62) is arranged.
9. Verbund von Wandelementen (2), die jeweils gemäß einem der Ansprüche9. composite of wall elements (2), each according to one of the claims
1 bis 6 ausgebildet sind, wobei übereinander angeordnete Wandelemente (2) über die Verbindungselemente (10) miteinander verschraubt oder verspannt sind. 1 to 6 are formed, wherein superimposed wall elements (2) via the connecting elements (10) are screwed or braced together.
10. Verbund von Wandelementen (2) nach Anspruch 9, wobei horizontale Lagerfugen (68) und vertikale Stoßfugen (58) zwischen den Wandelementen (2) mit Beton und/oder Mörtel vergossen sind. 10. composite of wall elements (2) according to claim 9, wherein horizontal bearing joints (68) and vertical joints (58) between the wall elements (2) are cast with concrete and / or mortar.
EP13779769.2A 2012-10-22 2013-10-09 Wall element for building in prefabricated construction Active EP2912238B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012219209.3A DE102012219209A1 (en) 2012-10-22 2012-10-22 Wall element for prefabricated buildings
PCT/EP2013/071048 WO2014063919A1 (en) 2012-10-22 2013-10-09 Wall element for building in prefabricated construction

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EP2912238A1 true EP2912238A1 (en) 2015-09-02
EP2912238B1 EP2912238B1 (en) 2016-03-16

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EP13779769.2A Active EP2912238B1 (en) 2012-10-22 2013-10-09 Wall element for building in prefabricated construction

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EP (1) EP2912238B1 (en)
JP (1) JP6218843B2 (en)
CN (1) CN104736781B (en)
DE (1) DE102012219209A1 (en)
HU (1) HUE030735T2 (en)
WO (1) WO2014063919A1 (en)

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SG10201703972WA (en) * 2016-06-28 2018-01-30 Seng Wong Composite structural wall and method of construction thereof
CN106193435B (en) * 2016-08-22 2019-08-02 合肥工业大学 A kind of antinode core plate precast concrete assembled composite wall
DE102016216771A1 (en) 2016-09-05 2018-03-08 Max Aicher Gmbh & Co. Kg Multi-layer wall for a building
CN110691877B (en) * 2017-05-23 2022-05-24 林恩科斯 Expansion joint for formwork system of concrete slab
CN107762001A (en) * 2017-11-07 2018-03-06 姚伟华 A kind of assembly concrete variable cross-section newel post type shearing wall member and its construction method
CN110241943A (en) * 2019-06-28 2019-09-17 福建建超建设集团有限公司 A kind of assembled architecture is gone along with sb. to guard him and preparation method thereof
CN111236527A (en) * 2020-03-26 2020-06-05 沈阳促晋科技有限公司 Fabricated concrete wallboard with steel bars avoiding and reinforcing connection
CN112012369B (en) * 2020-09-08 2021-11-23 哈尔滨工业大学 Prefabricated light sandwich wallboard
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CN115807499B (en) * 2023-02-03 2023-04-25 华侨大学 Modularized shear wall structure and construction method thereof

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Also Published As

Publication number Publication date
JP2016500773A (en) 2016-01-14
EP2912238B1 (en) 2016-03-16
WO2014063919A1 (en) 2014-05-01
HUE030735T2 (en) 2017-05-29
DE102012219209A1 (en) 2014-04-24
CN104736781A (en) 2015-06-24
JP6218843B2 (en) 2017-10-25
CN104736781B (en) 2017-05-03

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