EP0044271B1 - Connection of a reinforced concrete element to at least one other building element - Google Patents
Connection of a reinforced concrete element to at least one other building element Download PDFInfo
- Publication number
- EP0044271B1 EP0044271B1 EP81810190A EP81810190A EP0044271B1 EP 0044271 B1 EP0044271 B1 EP 0044271B1 EP 81810190 A EP81810190 A EP 81810190A EP 81810190 A EP81810190 A EP 81810190A EP 0044271 B1 EP0044271 B1 EP 0044271B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- forces
- metal sheet
- smooth
- reinforced concrete
- 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.)
- Expired
Links
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 claims abstract description 5
- 229910000746 Structural steel Inorganic materials 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
Images
Classifications
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
Definitions
- the invention relates to a connection of a reinforced concrete component with at least one other component, with a reinforcing element, preferably made of steel, which is embedded in the concrete of the reinforced concrete component at the point of connection.
- the invention has for its object to provide an improvement especially in this regard.
- the invention consists in that the reinforcement element is formed at least from a first sheet with a rectangular cross-section, smooth, compound-free surfaces, which is connected over its cross-sectional height to at least one smooth, compound-free surfaces transverse cross-section corresponding to its longitudinal direction, corresponding rectangular cross-sectional height, and that the reinforcing element is arranged such that contact forces and thus frictional forces are generated by internal pressure forces at the connection point, in particular on the smooth surfaces of the cross plate, which serve to establish the balance of the forces at the connection point.
- Compound-free is to be understood to mean that there are no bolts, side screws, etc., and also no flanges on the sheet metal, through which the force transmission could take place.
- a reinforcement element designated as a whole by 10 (Fig. 1 -3) consists of z. B. 20 cm high and 2 cm thick longitudinal sheets 1, which are connected to a 20 cm high and 3 cm thick cross plate 2. Between longitudinal sheets 1 is an I-profile, for. B. INP 18 having crossbar 3 welded.
- the reinforcement element 10 is concreted into the location 32 of the connection of a pressure belt 7, a truss post 6 and a tension diagonal 8 screwed to the web 3 by means of screws 31.
- the compressive forces D directed towards the connection point 32 are assumed, in the truss post 6 the axial force E and in the tension diagonal 8 the tensile force F directed away from the connection point 32.
- the compressive forces D in the belt 7 generate 2 contact forces on the smooth surfaces (friction surfaces) 2a of the transverse plate, which are without ribs or the like.
- the frictional forces serve to establish the equilibrium of the forces D, E, F at the connection point 32.
- the reinforcement or connecting element 33 consists of two transversely arranged, for. B. 16 cm high and 2 cm thick flat steels 12. In the middle of z. B. 16 cm high and 2 cm thick longitudinal flat steel 13 welded. U-profiles 14 are welded to the free ends of the flat steels 12, 13. Together with the transverse plates 12 and the longitudinal plates 13, they form a closed, rectangular frame.
- the element 33 is suitable for the transmission of moments.
- FIG 8 shows a point 34 of the connection of a horizontal plate strip (ceiling or floor) 15 to a wall 16, both of which are made of reinforced concrete.
- the element 33 is concreted in at the connection point 34.
- a connecting torque M caused by the plate strip 15 generates frictional forces on the pressure surfaces 12a of the transverse plates 12.
- the force pair G, H equivalent to the moment M can therefore be introduced into the wall 16.
- the transmission of the moment M is improved by the closed shape of the reinforcement element 33, since a displacement between the concrete of the parts 15, 16 and the reinforcement element 33 is impossible
- FIGS. To 11 is on two z. B. 40 cm high and 3.5 cm thick transverse sheets 19 a three-part, 40 cm high and 4 cm thick longitudinal sheet 20 welded. At the free ends of the sheets 19, four four U-profiles 21 each consisting of two angle irons are welded on, so that an element 35 with a closed frame is formed. The element 35 is suitable for the simultaneous transmission of axial forces and moments.
- FIG. 12 shows the location 36 of a connection between a foundation or floor slab 22 and a steel support 23 clamped therein.
- the reinforcing element 35 is concreted into the foundation plate 22 made of reinforced concrete and connected to the steel support 23 by means of weld seams 37.
- the normal force (weight force) of the support 23 is J and the support is subjected to a moment N. Then 22 bending moments P, Q and transverse forces K, L are generated in the foundation plate.
- the bending moments P, Q result on the smooth, without special ribs or the like. executed surfaces 19a, 21a frictional forces, whereby the transmissions of the force exerted by the support 23 and the moment N to the foundation plate 22 is secured.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Lining And Supports For Tunnels (AREA)
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Verbindung von einem Stahlbetonbauteil mit zumindest einem anderen Bauteil, mit einem Armierungselement, vorzugsweise aus Stahl, das an der Stelle der Verbindung in den Beton des Stahlbetonbauteiles eingebettet ist.The invention relates to a connection of a reinforced concrete component with at least one other component, with a reinforcing element, preferably made of steel, which is embedded in the concrete of the reinforced concrete component at the point of connection.
Bei einer bisherigen Ausführungsform (DE-C-1 559344) ist die Zusammenwirkung des Betonquerschnittes mit der Armierung durch zusätzliche Verbindungsmittel wie Rippen, Bolzen, Dübel, Schikanen, Verteilerplatten usw. gesichert (formschlüssige Verbindung). Dadurch wird die Verbindung relativ kompliziert und kostspielig. Besonders das Betonieren kann erschwert werden.In a previous embodiment (DE-C-1 559344), the interaction of the concrete cross section with the reinforcement is secured by additional connecting means such as ribs, bolts, dowels, baffles, distributor plates, etc. (positive connection). This makes the connection relatively complicated and expensive. Concreting can be particularly difficult.
Der Erfindung liegt die Aufgabe zugrunde, eine Verbesserung besonders in dieser Hinsicht zu schaffen.The invention has for its object to provide an improvement especially in this regard.
Die Erfindung besteht darin, daß das Armierungselement zumindest aus einem ersten, im Querschnitt rechteckigen, glatte, verbundfreie Oberflächen aufweisenden Blech gebildet ist, das über seine Querschnittshöhe mit mindestens einem senkrecht zu seiner Längsrichtung verlaufenden, glatte, verbundmittelfreie Oberflächen aufweisenden Querblech entsprechender Rechteckquerschnittshöhe verbunden ist, und daß das Armierungselement derart angeordnet ist, daß durch innere Druckkräfte an der Verbindungsstelle, insbesondere an den glatten Flächen des Querblechs, Anpreßkräfte und damit Reibungskräfte erzeugt werden, die zur Herstellung des Gleichgewichts der Kräfte an der Verbindungsstelle dienen. (Unter »verbundmittelfrei« soll verstanden werden, daß an dem Blech keine Bolzen, seitliche Schrauben usw. und auch keine Flansche vorgesehen sind, durch welche die Kraftübertragung erfolgen könnte.) Das räumliche Armierungselement kann z. B. aus Stahlblechen von 10 bis 80 mm Dicke und anderen Stahlprofilen zusammengeschweißt sein. Die inneren Kräfte der miteinander zu verbindenden Bauteile sind somit in vorteilhafter Weise ausgenutzt (kraftschlüssige Verbindung). Auf die erwähnten, zusätzlichen, bei der bisherigen Ausführungsform verwendeten Verbindungsmittel (Rippen, Bolzen usw.) ist verzichtet. Die Ausführungstechnik, insbesondere das Betonieren, läßt sich vereinfachen, die Kosten können gesenkt werden.The invention consists in that the reinforcement element is formed at least from a first sheet with a rectangular cross-section, smooth, compound-free surfaces, which is connected over its cross-sectional height to at least one smooth, compound-free surfaces transverse cross-section corresponding to its longitudinal direction, corresponding rectangular cross-sectional height, and that the reinforcing element is arranged such that contact forces and thus frictional forces are generated by internal pressure forces at the connection point, in particular on the smooth surfaces of the cross plate, which serve to establish the balance of the forces at the connection point. (“Compound-free” is to be understood to mean that there are no bolts, side screws, etc., and also no flanges on the sheet metal, through which the force transmission could take place. B. from steel sheets of 10 to 80 mm thick and other steel profiles. The internal forces of the components to be connected to one another are thus advantageously used (non-positive connection). The aforementioned additional connecting means (ribs, bolts, etc.) used in the previous embodiment are dispensed with. The execution technology, in particular the concreting, can be simplified and the costs can be reduced.
Weitere Merkmale ergeben sich aus der folgenden Beschreibung von Ausführungsbeispielen in Verbindung mit der Zeichnung und den Ansprüchen.
- Fig. 1 ist eine Vorderansicht eines Armierungselementes,
- Fig. 2 eine zugehörige Stirnansicht und
- Fig. 3 eine zugehörige Oberansicht.
- Fig.4 veranschaulicht eine erfindungsgemäße, das Armierungselement nach Fig. 1-3 enthaltende Verbindung.
- Fig. 5 ist ein Schnitt durch eine weitere Bauart eines Armierungselementes entsprechend Linie V/V in Fig. 7,
- Fig. 6 ist eine zugehörige Stirnansicht,
- Fig. 7 eine zugehörige Draufsicht und
- Fig. 8 erläutert eine weitere Verbindung unter Verwendung des Armierungselementes nach Fig. 5-7.
- Fig. 9 zeigt eine noch andere Ausführungsform eines Armierungselementes in einem Schnitt nach Linie IX/IX in Fig. 11,
- Fig. 10 ist ein zugehörige Stirnansicht,
- Fig. 11 eine zugehörige Draufsicht und
- Fig. 12 veranschaulicht eine noch andere Verbindung unter Anwendung des Armierungselementes nach Fig. 9 -11.
- 1 is a front view of a reinforcing element,
- Fig. 2 is an associated front view and
- Fig. 3 is an associated top view.
- FIG. 4 illustrates a connection according to the invention containing the reinforcement element according to FIGS. 1-3.
- 5 is a section through a further type of reinforcement element according to line V / V in FIG. 7,
- 6 is an associated end view;
- Fig. 7 is an associated plan view and
- FIG. 8 explains a further connection using the reinforcement element according to FIGS. 5-7.
- 9 shows yet another embodiment of a reinforcing element in a section along line IX / IX in FIG. 11,
- 10 is an associated end view;
- 11 is an associated top view and
- FIG. 12 illustrates yet another connection using the reinforcement element according to FIGS. 9-11.
Eine als Ganzes mit 10 bezeichnetes Armierungselement (Fig. 1 -3) besteht aus z. B. 20 cm hohen und 2 cm dicken Längsblechen 1, die mit einem 20 cm hohen und 3 cm dicken Querblech 2 verbunden sind. Zwischen Längsblechen 1 ist ein I-Profil, z. B. INP 18 aufweisender Quersteg 3 eingeschweißt.A reinforcement element designated as a whole by 10 (Fig. 1 -3) consists of z. B. 20 cm high and 2 cm thick longitudinal sheets 1, which are connected to a 20 cm high and 3 cm
Gemäß Fig. 4 ist das Armierungselement 10 in die Stelle 32 der Verbindung eines Druckgurtes 7, eines Fachwerkpfostens 6 und einer an den Steg 3 mittels Schrauben 31 angeschraubten Zugdiagonalen 8 einbetoniert. In dem Druckgurt 7 sind die zur Verbindungsstelle 32 hin gerichteten Druckkräfte D angenommen, in dem Fachwerkpfosten 6 die Axialkraft E und in der Zugdiagonalen 8 die von der Verbindungsstelle 32 weg gerichtete Zugkraft F.According to FIG. 4, the
Die Druckkräfte D im Gurt 7 erzeugen an den glatten, ohne Rippen oder dgl. ausgeführten Flächen (Reibungsflächen) 2a des Querbleches 2 Anpreßkräfte und damit Reibung. Die Reibungskräfte dienen zur Herstellung des Gleichgewichts der Kräfte D, E, F an der Verbindungsstelle 32.The compressive forces D in the belt 7 generate 2 contact forces on the smooth surfaces (friction surfaces) 2a of the transverse plate, which are without ribs or the like. The frictional forces serve to establish the equilibrium of the forces D, E, F at the
Das Armierungs- bzw. Verbindungselement 33 nach Fig. 5 bis 7 besteht aus zwei quer angeordneten, z. B. 16 cm hohen und 2 cm dicken Flachstählen 12. In ihrer Mitte sind z. B. 16 cm hohe und 2 cm dicke längs verlaufende Flachstähle 13 eingeschweißt. An den freien Enden der Flachstähle 12, 13 sind U-Profile 14 angeschweißt. Sie bilden zusammen mit den Querblechen 12 und den Längsblechen 13 einen geschlossenen, rechteckigen Rahmen. Das Element 33 eignet sich zur Übertragung von Momenten.The reinforcement or connecting
Gemäß Fig. 8 ist eine Stelle 34 der Verbindung eines horizontalen Plattenstreifens (Decke oder Fußboden) 15 mit einer Wand 16 veranschaulicht, die beide aus Stahlbeton hergestellt sind. Das Element 33 ist an der Verbindungsstelle 34 einbetoniert. Ein vom Plattenstreifen 15 verursachtes Anschlußmoment M erzeugt an den Druckflächen 12a der Querbleche 12 Reibungskräfte. Das dem Moment M äquivalente Kräftepaar G, H kann demzufolge in die Wand 16 eingeleitet werden. Die Übertragung des Moments M wird durch die geschlossene Form des Armierunggselementes 33 verbessert, da eine Verschiebung zwischen dem Beton der Teile 15, 16 und dem Armierungselement 33 unmöglich ist8 shows a
Bei dem Ausführungsbeispiel nach Fig. bis 11 ist an zwei z. B. 40 cm hohen und 3,5 cm dikken Querblechen 19 ein aus drei Teilen bestehendes, 40 cm hohes und 4 cm dickes Längsblech 20 angeschweißt. An die freien Enden der Bleche 19, 20 sind vier aus je 2 Winkeleisen bestehende U-Profile 21 angeschweißt, so daß ein Element 35 mit geschlossenem Rahmen entsteht. Das Element 35 eignet sich zum gleichzeitigen Übertragen von Axialkräften und Momenten.In the embodiment of FIGS. To 11 is on two z. B. 40 cm high and 3.5 cm thick
In Fig. 12 ist die Stelle 36 einer Verbindung zwischen einer Fundament- bzw. Bodenplatte 22 und einer darin eingespannten Stahlstütze 23 dargestellt. Das Armierungselement 35 ist in die aus Stahlbeton bestehende Fundamentplatte 22 einbetoniert und mittels Schweißnähten 37 mit der Stahlstütze 23 verbunden.FIG. 12 shows the
Die Normalkraft (Gewichtskraft) der Stütze 23 sei J und die Stütze sei einem Moment N unterworfen. Dann werden in der Fundamentplatte 22 Biegemomente P, Q und Querkräfte K, L erzeugt. Durch die Biegemomente P, Q entstehen auf den glatten, ohne besondere Rippen oderdgl. ausgeführten Flächen 19a, 21a Reibungskräfte, wodurch die Übertragungen der von der Stütze 23 ausgeübten Kraft J und des Moments N auf die Fundamentplatte 22 gesichert ist.The normal force (weight force) of the
Bei allen beschriebenen Ausführungsformen sind zur Übertragung von Kräften bzw. Momenten nur Reibungskräfte an den Reibungsflächen 2a, 12a, 19a, 21a ausgenützt. Übertragungsmittel wie Rippen oder dgl. an den miteinander verbundenen Bauteilen 6, 7, 15, 16, 22, 23 bzw. an den Armierungselementen 10, 33, 35 sind fortgelassen.In all the described embodiments, only frictional forces on the friction surfaces 2a, 12a, 19a, 21a are used to transmit forces or moments. Transmission means such as ribs or the like on the
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81810190T ATE8163T1 (en) | 1980-07-10 | 1981-05-19 | CONNECTION OF A REINFORCED CONCRETE COMPONENT TO AT LEAST ONE OTHER COMPONENT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH5293/80 | 1980-07-10 | ||
CH5293/80A CH650300A5 (en) | 1980-07-10 | 1980-07-10 | CONNECTION OF A STEEL CONCRETE COMPONENT TO AT LEAST ONE OTHER COMPONENT. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0044271A1 EP0044271A1 (en) | 1982-01-20 |
EP0044271B1 true EP0044271B1 (en) | 1984-06-27 |
Family
ID=4291162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81810190A Expired EP0044271B1 (en) | 1980-07-10 | 1981-05-19 | Connection of a reinforced concrete element to at least one other building element |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0044271B1 (en) |
AT (1) | ATE8163T1 (en) |
CH (1) | CH650300A5 (en) |
DE (1) | DE3026824A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5205804A (en) * | 1990-12-10 | 1993-04-27 | Hall Henry V | Method for strengthening the muscles of the lower back |
CN109441001B (en) * | 2018-11-30 | 2023-09-19 | 精工工业建筑系统有限公司 | Prefabricated external wall panel with heat preservation intermediate layer |
CN110147622B (en) * | 2019-05-23 | 2022-04-05 | 重庆交通大学 | Method for determining crack width of fully-assembled steel-concrete composite beam bridge |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697930A (en) * | 1950-03-21 | 1954-12-28 | David B Cheskin | Slab supporting frame for reinforced concrete building construction |
CH382950A (en) * | 1964-04-23 | 1964-10-15 | Geilinger & Co | Support device for a reinforced concrete ceiling |
-
1980
- 1980-07-10 CH CH5293/80A patent/CH650300A5/en not_active IP Right Cessation
- 1980-07-16 DE DE19803026824 patent/DE3026824A1/en not_active Withdrawn
-
1981
- 1981-05-19 EP EP81810190A patent/EP0044271B1/en not_active Expired
- 1981-05-19 AT AT81810190T patent/ATE8163T1/en active
Also Published As
Publication number | Publication date |
---|---|
CH650300A5 (en) | 1985-07-15 |
ATE8163T1 (en) | 1984-07-15 |
DE3026824A1 (en) | 1982-02-04 |
EP0044271A1 (en) | 1982-01-20 |
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