WO2012028293A2 - Élément en béton doté d'un ensemble destiné à la fixation des charges et procédé de fabrication et de planification d'un ensemble destiné à la fixation des charges - Google Patents

Élément en béton doté d'un ensemble destiné à la fixation des charges et procédé de fabrication et de planification d'un ensemble destiné à la fixation des charges Download PDF

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Publication number
WO2012028293A2
WO2012028293A2 PCT/EP2011/004352 EP2011004352W WO2012028293A2 WO 2012028293 A2 WO2012028293 A2 WO 2012028293A2 EP 2011004352 W EP2011004352 W EP 2011004352W WO 2012028293 A2 WO2012028293 A2 WO 2012028293A2
Authority
WO
WIPO (PCT)
Prior art keywords
concrete component
anchors
reinforcement
anchor
arrangement
Prior art date
Application number
PCT/EP2011/004352
Other languages
German (de)
English (en)
Other versions
WO2012028293A3 (fr
Inventor
Bernd SCHNÜTGEN
Wolfram Oertel
Original Assignee
Areva Np 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 Np Gmbh filed Critical Areva Np Gmbh
Publication of WO2012028293A2 publication Critical patent/WO2012028293A2/fr
Publication of WO2012028293A3 publication Critical patent/WO2012028293A3/fr

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
    • E04C2/06—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
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114—Elements with sockets
    • E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories

Definitions

  • the invention relates to a concrete component with a front surface, in particular a reinforced concrete component of a plant of the power plant and industrial building (KIB), in this case a nuclear facility, with an arrangement for load attachment. It further relates to a method for providing such an arrangement and an associated planning method.
  • KIB power plant and industrial building
  • anchor plates are cast in as planned during the construction phase in order to absorb loads.
  • load receptacles are welded for the KIB expansion.
  • These can be load supports for cable trays, ducts for heating and ventilation, pipelines, etc.
  • the originally intended and planned anchor plates can no longer or only to a limited extent be used. In this case, the subsequent installation of plates, especially dowels, is necessary.
  • Anchor plates consist of rectangular (in particular square) steel plates with anchors welded on the back, so-called head studs or Nelson bolts.
  • the panels are installed, measured and fixed during the formwork and reinforcement work in order to prevent as far as possible displacement of the slabs during the concreting process.
  • the back-welded anchors have the task to initiate the later acting on the plates forces in the corresponding component. Due to the special shape of the anchor, it is no longer possible to release the plates from the component when the calculated loads are maintained.
  • the anchors are arranged in groups and available in different lengths, depending on the component thickness. Usually four anchors are arranged, with larger plates it can be up to 16 anchors.
  • Dowel plates are retrofitted, dowelled plates that serve the same purpose as anchor plates; however, they can only absorb lower loads.
  • the lower load bearing is due to the opposite dowel head bolts lower carrying capacity of the dowels for both tensile forces and shear stresses.
  • undercut anchors are used for the installation of dowel plates, which are subject to special requirements when used in nuclear facilities.
  • the invention is therefore based on the object to provide a concrete component with a flexible arrangement for load attachment, which can be built with little effort. Furthermore, a nuclear power plant with such concrete components and methods for providing and planning a load attachment arrangement are given.
  • the object is achieved with an arrangement for load attachment with a plurality of anchors, wherein the anchors arranged on the front surface substantially nationwide in a regular grid and embedded in the concrete component are.
  • the invention is based on the consideration that modern requirements in industrial and power plant construction, in particular in nuclear power plant construction, include flexible and needs-based load fastenings on concrete components. It is also based on the recognition that, during the design and production phase of the concrete components, future requirements for load attachment to these concrete components when placed in a core technical system is integrated, are difficult to predict. Therefore, pre-assembled anchor plates, or if necessary mountable dowel plates prove to be disadvantageous.
  • such a flexibly usable arrangement for load fastening can be achieved in that an area of a concrete component to which loads are to be fastened laterally, at least in the later accessible area, with a regular, preferably grid-shaped, arrangement provided by anchors. These anchors are thus embedded in the concrete component during the production of the concrete component.
  • Such a regular arrangement of anchors thus separates the processes of manufacturing the concrete component and planning the locations on the components to which loads are to be attached. Since the concrete components are essentially provided with anchors nationwide, can be decided individually, depending on the type and weight of the load, how many anchors are to be used for their attachment.
  • the position on the component can also be chosen essentially freely, given a sufficiently narrow grid. Consideration of previously cast-in anchoring structures, such as anchor plates, must therefore not be taken.
  • the number of anchors that should carry this load can be selected.
  • plates in particular anchor plates are attached to a previously selected number of anchors. These plates can then be connected to the load to be fastened.
  • the concrete component is provided with a reinforcement, wherein the anchors are arranged in the interstices of the reinforcement. Such an embodiment of the concrete component is easy to achieve, since both the reinforcement and the anchor can be planned and installed during the production process of the concrete components.
  • the anchors in particular as non-positive anchors, in the manner of Kopfbolzdüblen or in the manner of reinforcing bars with an upset head performed at one end, the anchor having an accessible from the front surface of the concrete component external or internal thread.
  • the accessible front surface of the anchor is preferably aligned flush with the front surface of the concrete component.
  • the anchors may also protrude out of the surface. With the external or internal thread other components such as anchor plates can be screwed. These can then be connected to the load to be fastened, for example, welded.
  • the concrete component has a rear surface. At least one anchor penetrates the concrete component from the front surface to the rear surface and has an accessible from the rear surface of the concrete component external or internal thread. In this way, stable and water-impermeable overstresses are realized by the concrete component.
  • Such a concrete component thus has both on the front and on the rear surface on a regular or regular grid of anchors, the grid spacings are the same size in both cases.
  • the anchors are arranged in a grid of 15 x 15 cm. Such a grid allows a close-meshed reinforcement and allows high flexibility in terms of load application.
  • the concrete component may comprise a number of anchor plates, each screwed to a plurality of anchors.
  • the anchor plates can vary in size and in terms of the number of anchors with which they are bolted.
  • the above-mentioned object is achieved with at least one such concrete component.
  • a nuclear installation will comprise a plurality of such concrete components.
  • the area-wide grid can be limited to the accessible front surface or, in the case of the passing anchors, to the two accessible areas. That is, the majority of the anchors is arranged area-wide in the later accessible area in a regular grid.
  • the above-mentioned object is achieved according to the invention by inserting the anchors on the front surface into the concrete component across the entire surface in a regular pattern.
  • the anchor is embedded in the interstices of the reinforcement.
  • the abovementioned object is achieved according to the invention by generating a common installation plan for a reinforcement and an associated grid of anchors by means of a CAD program running on a computer.
  • a CAD program instead of a CAD program, another program can be used, by means of which a geometric and quantitative design of a concrete component with arrangement for load attachment and reinforcement is possible.
  • Reinforcement and anchor arrangement can be coordinated in this way in optimized form.
  • the program can allow manual input through which the reinforcement and anchor arrangement can be specified.
  • the program can also perform certain steps in an automated or automatically running form independently. For example, when specifying a reinforcement and possibly a catalog of requirements to the grid of anchors, the program independently suggest a grid or set, which can still be adjusted manually if necessary.
  • the common layout plan is advantageously displayed on a display. A joint installation plan generated in this way can be printed or displayed on the one hand, on the other hand, it can be transmitted directly to the production facility.
  • the possibility of planning a joint installation plan also makes it possible to create a database in which different joint installation plans are stored for concrete components with different application area or requirement profile and can be recalled at a later time. These measures allow a time- and resource-saving planning of any system in the KIB area, in particular nuclear installations, in which subsequent improvements regarding the possibility of load attachment are avoided.
  • the advantages of the invention are in particular that a flexible Lobefest Trent is made possible by a nationwide and arranged in a regular grid plurality of anchors in a concrete component. Accordingly, when producing the concrete component, it is not yet necessary to provide the information on which points of the concrete component later loads are to be fastened. As a result, an attachment of anchor plates to still free anchors is possible at a later date. Since the anchors are arranged in a grid pattern, any missing or "forgotten” anchors in the grid can be easily detected and supplemented before concreting.
  • the concrete component according to the invention allows a high utilization of the anchorages by the anchor can be performed in extreme cases to the opposite side of the concrete component. As a result, waterproof overstresses of the concrete component can be realized with relatively little effort. Due to the essentially comprehensive arrangement of the anchors, the complete concrete component can be used for load fastening if required.
  • 1 is a trained as a dowel anchor anchor for use in a load attachment arrangement in a concrete component with a head and an internal thread
  • FIG. 2 shows a bolt designed as a headed bolt for use in a load securing arrangement in a concrete component;
  • FIG. in contrast to FIG. 1, made of corrugated reinforcing steel, with an external thread and an upset head,
  • Figure 3 is an anchor designed as a head bolt for use in a load-securing arrangement in a concrete component with an internal thread. in contrast to FIG. 1 produced from ribbed reinforcing steel and with upset head,
  • Fig. 4 is a waterproof execution of a head bolt with two thickening parts for
  • FIG. 5 shows a concrete component with a reinforcement and with an arrangement of anchors according to FIG. 1.
  • FIG. 1 shows an armature 2 made of semifinished product or cast iron for use in the arrangement for load fastening in a concrete component according to the invention.
  • the armature 2 comprises a shank 8 of semi-finished or cast iron, which is provided at one end with a head 14 or collar. At its other end, the shank 8 is provided with a conical intermediate piece 20, to which a thickening part 26 adjoins.
  • the thickening part 26 is designed to be substantially axially symmetrical and cylindrical.
  • the thickening part 26 has an internal thread 32, which is designed as an axial threaded bore.
  • the armature 2 with shaft 8, head 14, and intermediate part 20 and thickening part 26 of the anchor is designed to accommodate both high axial and high radial forces and to transfer to the surrounding concrete component or dissipate.
  • the anchor 2 is completely embedded in the concrete component, so that the outer end of the thickening member 26 does not protrude.
  • At the internal thread 32 can be screwed designed for load bearing anchor plates. Depending on the size of the anchor plate more or less anchor 2 can be used for their attachment. The load transfer between the anchor plates and the anchors anchored takes place, as stated above, via screw.
  • both preloaded and unbiased screws can be used.
  • the carrying capacity of the anchors 2 is to be expected because of the similar head formation in the same order of magnitude as Nelson bolts.
  • the shear resistance should exceed that of conventional head bolt anchors or Nelson bolts, since the threaded sleeve has a larger diameter.
  • a special case occurs with preloaded screw connections.
  • the friction between concrete and slab is activated and used for load transfer for shear forces.
  • the anchor 2 shown in Fig. 2 has a shaft 8, which is made of ribbed reinforcing steel (which is approved for the corresponding construction project) with ribs 10.
  • This anchor 2 has an upturned to the shaft 8 head 14 and an external thread 33.
  • Fig. 3 also shows an anchor 2 with a shaft 8 made of reinforcing steel and an upset head 14, which has an internal thread 32 in contrast to the anchor 2 shown in Fig. 2.
  • Both anchors 2 are suitable for use in a component 50 according to the invention.
  • FIG. 4 A watertight embodiment of an anchor 2 penetrating a concrete component 50 between a front surface 52 and a rear surface 54 is shown in FIG.
  • the armature 2 or anchor bolt illustrated in FIG. 4 comprises in the center a metal disk 38 which to a certain extent replaces the head 14 of the embodiment of the armature 2 shown in FIG.
  • the armature 2 comprises in each case a shaft 8, intermediate part 20, and thickening part 26, which can each be embodied as in FIG.
  • Both halves of the armature 2 are rigidly connected.
  • the armature 2 is made in one piece and is made of an integral construction of a made of a common semi-finished or cast in one piece. At both ends of the armature 2 is each equipped with an internal thread 32.
  • the material used for the anchors can be any steels approved for the particular application.
  • FIG. 5 An inventive concrete component 50 in plan view of the front surface 52 is shown in Fig. 5.
  • the concrete component 50 includes a latticed reinforcement 56.
  • the anchor 2 are embedded in the concrete component 50.
  • Fig. 5 shows substantially a section of a concrete component 50. That is, both the reinforcement 56 and the grid of anchors 2 extend in all directions to the edge not shown here or to the outer enclosure of the concrete component.
  • the arrangement of the armature 2 is substantially embedded throughout the concrete component 50, at least in the later accessible after completion of the building area.
  • the comprehensive embedding of anchors 2 in a concrete component 50 results, inter alia, in the following advantages: During the final load application, no welding work on concrete is necessary. As anchors 2 and not anchor plates are embedded in the concrete, air pockets under anchor plates are avoided during the concreting process. As stated above, the concrete component allows a flexible design of mounting options for loads by the rastered attachment of the head bolt dowels.
  • the anchors 2 are already inserted into the concrete component 50 during the concreting process, there is no risk of (subsequent) damage to the reinforcement. Since the anchor plates or plates are bolted to the anchors 2, these plates can be easily removed and replaced by other plates. The size of the plates can therefore be changed later.
  • load tables are available for quick dimensioning and simplified verification of the anchors.
  • the permissible loads can be read from load tables. The preparation of the tables is preceded by a corresponding static calculation.
  • the concrete component 50 allows a simplified dismantling of the formwork used, and the anchor 2 are also suitable for working joints as a reinforcement connection.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Foundations (AREA)

Abstract

L'invention concerne un élément en béton (50) présentant une face frontale (52), notamment d'une installation de génie industriel et de construction de centrales, cet élément devant être doté d'un ensemble destiné à la fixation des charges qui est d'utilisation flexible et doit être monté de manière simple. Selon l'invention, l'ensemble destiné à la fixation des charges selon l'invention comprend une pluralité d'éléments d'ancrage (2) qui sont disposés sur la face frontale (52) en un réseau régulier couvrant sensiblement toute la surface et sont noyés dans l'élément en béton (50).
PCT/EP2011/004352 2010-09-01 2011-08-30 Élément en béton doté d'un ensemble destiné à la fixation des charges et procédé de fabrication et de planification d'un ensemble destiné à la fixation des charges WO2012028293A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010036117 DE102010036117A1 (de) 2010-09-01 2010-09-01 Betonbauteil mit einer Anordnung zur Lastbefestigung sowie Verfahren zum Bereitstellen und zur Planung einer Anordnung zur Lastbefestigung
DE102010036117.8 2010-09-01

Publications (2)

Publication Number Publication Date
WO2012028293A2 true WO2012028293A2 (fr) 2012-03-08
WO2012028293A3 WO2012028293A3 (fr) 2012-10-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/004352 WO2012028293A2 (fr) 2010-09-01 2011-08-30 Élément en béton doté d'un ensemble destiné à la fixation des charges et procédé de fabrication et de planification d'un ensemble destiné à la fixation des charges

Country Status (2)

Country Link
DE (1) DE102010036117A1 (fr)
WO (1) WO2012028293A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017102433U1 (de) 2017-04-25 2017-07-07 H-Bau Technik Gmbh Bewehrungsanschluss für Betonbaukörper
CN110939207A (zh) * 2018-09-25 2020-03-31 阳程（佛山）科技有限公司 预埋螺母件及其制备方法及含预埋螺母孔的混凝土构件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6567645B2 (ja) * 2014-07-16 2019-08-28 エスアール システムズ リミテッド ライアビリティ カンパニー アンカーボルト装置

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DD138087B1 (de) * 1978-08-02 1981-10-28 Erhard Schomann Verfahren und vorrichtung zum einbau von verankerungskonstruktionen
DE2911157A1 (de) * 1979-03-22 1980-10-16 Babcock Brown Boveri Reaktor Gebaeudewand aus beton mit darin eingegossenen befestigungselementen und verfahren zur herstellung einer solchen gebaeudewand
DE3107506A1 (de) * 1981-02-27 1982-09-16 Kraftwerk Union AG, 4330 Mülheim Verankerungselement
DE3137999A1 (de) * 1981-09-24 1983-03-31 Hochtemperatur-Reaktorbau GmbH, 5000 Köln Verfahren zum befestigen von metallplatten an stark bewehrten betonwaenden, -decken oder -boeden
DE3338762A1 (de) * 1983-10-26 1985-05-09 Winfried Dipl.-Ing. 6365 Rosbach Schnabel Verankerungen von stahlbauteilen durch schraubverbindungen im beton
US5561956A (en) * 1993-11-01 1996-10-08 Robert E. Englekirk Concrete elements and connectors therefor

Non-Patent Citations (1)

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Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017102433U1 (de) 2017-04-25 2017-07-07 H-Bau Technik Gmbh Bewehrungsanschluss für Betonbaukörper
CN110939207A (zh) * 2018-09-25 2020-03-31 阳程（佛山）科技有限公司 预埋螺母件及其制备方法及含预埋螺母孔的混凝土构件

Also Published As

Publication number Publication date
WO2012028293A3 (fr) 2012-10-18
DE102010036117A1 (de) 2012-03-01

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