EP0826845B1 - Device for taking up tension forces - Google Patents
Device for taking up tension forces Download PDFInfo
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- EP0826845B1 EP0826845B1 EP97114441A EP97114441A EP0826845B1 EP 0826845 B1 EP0826845 B1 EP 0826845B1 EP 97114441 A EP97114441 A EP 97114441A EP 97114441 A EP97114441 A EP 97114441A EP 0826845 B1 EP0826845 B1 EP 0826845B1
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- Prior art keywords
- loop
- connecting member
- construction
- previous
- joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- 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
- E04B1/003—Balconies; Decks
- E04B1/0038—Anchoring devices specially adapted therefor with means for preventing cold bridging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
Definitions
- the invention relates to a device with the zugbe pipete components without Welded or direct mechanical connections of extremely short length development can be connected to one another in a force-transmitting manner.
- the device according to DE 957 685 C is further characterized in that it can only be used if the reinforcement is arranged in ducts and thereby can be stretched. It is therefore not suitable for connection of reinforcement, which was immediately concreted in and with the concrete in the Verbund lies.
- the device according to DE 36 34 568 A1 may deviate from this Although used for embedded concrete reinforcement, but required for installation a comparatively large joint width, which in addition to the multipart, comparatively consuming construction represents a significant disadvantage.
- the object of the present invention is under tensile stress with a correspondingly designed, in a particularly simple molded device to connect rod-shaped devices, without further measures having a minimum length of development of a force-absorbing structure.
- the tension rods can consist either of rod-shaped reinforcing steels or else of other materials and / or other cross sections.
- the elements to be pushed tensile elements are bent in loop form and overlapping installed .
- the loops devices made of steel or other suitable materials are installed, which are circular or annular at least on one side, so that they direct the deflection of the already mentioned Buchlenkungen or indirectly -. B. on the concrete - can record.
- These forces can be passed on to the further construction with the same method; Depending on the initial situation, however, the force transmission can also be ensured elsewhere, for example by means of welded joints.
- the overlap ensures that the length development of the tow joints can be kept extremely small. This is a very significant advantage, as this building joints, in which the pull is to be installed, can be formed with a small joint width. This leads to significant functional and economic benefits.
- the overlap allows the formation of particularly simple and small connectors, which also ensures economic and functional advantages.
- the device may preferably be used in steel and prestressed concrete structures, wherein the short length development is particularly advantageous, in particular in connection with structural joints over which tensile forces are to be transmitted. With the device but also tensile forces of components made of other materials (such as, for example, wood or steel) are passed into the concrete. Finally, the device can also be used favorably for the transmission of tensile forces between wood and steel or other suitable materials.
- the tensile to colliding components can have a height offset on exhibit. This can be a significant advantage in certain applications of steel and prestressed concrete construction - namely, if different sized concrete cover dimensions are to be observed for the reinforcements to be repelled (eg reinforcing steel and stainless steel).
- the connecting element can be designed so that both reinforcements are installed in each case with their specific concrete cover and thus have the respective maximum possible lever arm for receiving bending tensile forces.
- the resulting offset moment can be compensated solely by the fact that the loops are supported at right angles to their plane against the concrete.
- the intermediate elements can be formed due to the height offset so that the resulting during the transmission torque offset moment is maintained by a counteracting force pair in equilibrium.
- FIG. 1 shows an example of this situation in a longitudinal section through a Reinforced concrete slab, like the reinforcements 1 in the area of a shrinkage gap 2 with the help of the devices 3 according to the invention with the further reinforcements 4 tensile strength can be connected.
- Shrinkage joints are arranged in structures where due to the structural constraints due to shrinkage of the concrete would be large compulsory loads. They become one closed as late as possible after completion of the shell work. While the width of the shrinkage joints in conventional training Overlapping impacts is relatively large and so too unwieldy for many operations is the follow-up work at the short joint width shown here almost be carried out unhindered.
- Figures 2 and 3 and 4 and 5 each show a slightly modified variant the device of Figure 1, in which it is possible, initially only the two Reinforcement loops 1 and 4 sufficiently accurate fit - if necessary, with a sufficient Tolerance measure for Schwindverkürzungen - to install.
- the circular cylinder molded connector 3 can be used later. In other applications such as For joints with thermal separation, it may be against be useful, the connector with that loop through the Dämmfuge is already connected before installation.
- the loop 1 pulls to the left and accordingly the loop 4 to the right.
- the resulting due to the height offset of the two loops offset moment wants to turn the connector clockwise.
- this is prevented by the fact that the loop 1 is supported at the point A down against the concrete. Due to the comparatively low tensile strength of the concrete, however, it is often not possible for the point B of the loop 4 located near the concrete surface 5 to support itself in the same way. Therefore, in the example of FIG. 3, the lug 5 arranged on the circular ring serves to accommodate this upwardly directed force required for the equilibrium.
- FIG. 6 shows, as a further possible variant, the applicability of the invention Device the rigid connection of wooden beams 11 to a Reinforced concrete slab 12 in the area of a thermally insulated joint.
- the bending tensile forces occur here in the upper region of the wooden beam 11.
- the inventive Device for transmitting tensile forces is therefore in the upper range arranged.
- the occurring in the lower region of the cantilevered wooden beam 11 Bending forces and the shear forces are provided by a designated Pressure plate 18 recorded, the horizontal and vertical support surface components has and by means of a diagonal arrangement, the transverse forces and forwards this can be connected to the pull loop 15.
- the two printing plates are here about roof-shaped inclined against each other.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Wood Science & Technology (AREA)
- Rod-Shaped Construction Members (AREA)
- Medicines Containing Plant Substances (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmission Devices (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung, mit der zugbeanspruchte Bauelemente ohne geschweißte oder direkte mechanische Verbindungen äußerst kurzer Längenentwicklung kraftübertragend miteinander verbunden werden können.The invention relates to a device with the zugbeanspruchte components without Welded or direct mechanical connections of extremely short length development can be connected to one another in a force-transmitting manner.
Die häufigste Art der Ausbildung von Bewehrungsstößen in Stahl- und Spannbetonkonstruktionen besteht in den sogenannten Übergreifungsstößen, die nach DIN 1045 bzw. ENV DIN 1992-1 auszubilden sind. Diese Übergreifungsstöße haben den Nachteil, daß für die Übertragung der Kräfte relativ große Längen erforderlich sind. Dieser Nachteil macht sich besonders ungünstig bemerkbar, wenn die Kraftübertragung im Zusammenhang mit einer Fuge im Bauwerk erforderlich wird.The most common type of reinforcement reinforcement in steel and prestressed concrete structures consists in the so-called Übergreifungsstößen, according to DIN 1045 and ENV DIN 1992-1 are to be trained. These Übergreifungsstöße have the Disadvantage that relatively long lengths are required for the transmission of forces. This disadvantage is particularly unfavorable when the power transmission in connection with a joint in the building is required.
Die naheliegendste Lösung für diesen Fall besteht darin, die zu stoßenden Bewehrungen miteinander zu verschweißen. Dies ist aber häufig aus baupraktischen Gesichtspunkten zu aufwendig. Eine weitere Alternative besteht in der Anwendung von Muffen. Diese haben jedoch auch mehrere baupraktische Nachteile: Zum einen stehen sie aus Gründen der Wirtschaftlichkeit nur für größere Stabdurchmesser zur Verfügung; zum anderen erfordern sie entweder auf der Baustelle Vorrichtungen wie z. B. spezielle Pressen mit entsprechend aufwendigen Arbeitsgängen oder aber besondere Bewehrungen, die mit Gewinden versehen sind.The most obvious solution for this case is to weld the reinforcements to be abutted together. However, this is often too expensive from a practical point of view. Another alternative is the use of sleeves. However, these also have several practical disadvantages: First, they are available for reasons of economy only for larger rod diameter available; On the other hand, they either require on the construction site devices such. B. special presses with correspondingly complex operations or special reinforcements, which are provided with threads.
Weitere Alternativen wurden mit den Dokumenten DE 957 685 C und DE 36 34 568 A1 vorgestellt. Hierbei handelt es sich jeweils um Vorrichtungen, bei denen schlaufenförmige Bewehrungselemente über Zwischenstücke kraftschlüssig miteinFurther alternatives have been found in documents DE 957 685 C and DE 36 34 568 A1 presented. These are in each case devices in which loop-shaped reinforcing elements by means of intermediate pieces positively ander verbunden werden. Ein wesentliches, gemeinsames Merkmal dieser Vorrichtungen besteht darin, dass sie jeweils mehrteilig sind.be connected. An essential, common feature of these devices is that they are each multi-part.
Die Vorrichtung gemäß DE 957 685 C ist weiterhin dadurch gekennzeichnet, dass sie nur eingesetzt werden kann, wenn die Bewehrung in Hüllrohren angeordnet ist und dadurch noch gespannt werden kann. Sie ist folglich nicht geeignet zur Verbindung von Bewehrung, die unmittelbar einbetoniert wurde und mit dem Beton im Verbund liegt. Die Vorrichtung gemäß DE 36 34 568 A1 kann abweichend hiervon zwar für einbetonierte Bewehrungen eingesetzt werden, benötigt aber für den Einbau eine vergleichsweise große Fugenbreite, was neben der mehrteiligen, vergleichsweise aufwendigen Konstruktion einen wesentlichen Nachteil darstellt.The device according to DE 957 685 C is further characterized in that it can only be used if the reinforcement is arranged in ducts and thereby can be stretched. It is therefore not suitable for connection of reinforcement, which was immediately concreted in and with the concrete in the Verbund lies. The device according to DE 36 34 568 A1 may deviate from this Although used for embedded concrete reinforcement, but required for installation a comparatively large joint width, which in addition to the multipart, comparatively consuming construction represents a significant disadvantage.
Hiervon ausgehend besteht die Aufgabe der vorliegenden Erfindung darin, mit einer entsprechend ausgelegten, besonders einfach geformten Vorrichtung zugbeanspruchte, stabförmige Bauelemente ohne weitere Maßnahmen mit einer minimalen Längenentwicklung an eine kraftaufnehmende Konstruktion anschließen zu können. Die Zugstäbe können entweder aus stabförmigen Betonstählen oder aber auch aus sonstigen Werkstoffen und / oder sonstigen Querschnitten bestehen.On this basis, the object of the present invention is under tensile stress with a correspondingly designed, in a particularly simple molded device to connect rod-shaped devices, without further measures having a minimum length of development of a force-absorbing structure. The tension rods can consist either of rod-shaped reinforcing steels or else of other materials and / or other cross sections.
Diese Aufgabe wird erfindungsgemäß durch das Kennzeichen des
Anspruchs 1 gelöst.This object is achieved by the characterizing part of
Hiernach werden die zu stoßenden zugbeanspruchten Elemente in Schlaufenform gebogen und überlappend eingebaut. Zwischen die Schlaufen werden Vorrichtungen aus Stahl oder anderen geeigneten Werkstoffen eingebaut, die zumindest auf einer Seite kreis- oder kreisringförmig ausgebildet sind, so daß sie die von den bereits genannten Zugschlaufen abgegebenen Umlenkkräfte direkt oder auch indirekt - z. B. über den Beton - aufnehmen können. Diese Kräfte können an die weiterführende Konstruktion mit der gleichen Methode weitergeleitet werden; je nach Ausgangssituation kann aber die Kraftweiterleitung auch anderweitig, beispielsweise durch Schweißverbindungen, sichergestellt werden. After that, the elements to be pushed tensile elements are bent in loop form and overlapping installed . Between the loops devices made of steel or other suitable materials are installed, which are circular or annular at least on one side, so that they direct the deflection of the already mentioned Zuglenkungen or indirectly -. B. on the concrete - can record. These forces can be passed on to the further construction with the same method; Depending on the initial situation, however, the force transmission can also be ensured elsewhere, for example by means of welded joints.
Durch die Überlappung wird einerseits erreicht, dass die Längenentwicklung der Zugstöße extrem klein gehalten werden kann. Dies ist ein ganz wesentlicher Vorteil, da dadurch Bauwerksfugen, in denen der Zugstoß eingebaut werden soll, mit einer geringen Fugenbreite ausgebildet werden können. Dies führt zu erheblichen funktionellen und wirtschaftlichen Vorteilen. Andererseits erlaubt die Überlappung die Ausbildung von besonders einfachen und kleinen Verbindungsstücken, was gleichfalls wirtschaftliche und funktionelle Vorteile sichert. The overlap on the one hand ensures that the length development of the tow joints can be kept extremely small. This is a very significant advantage, as this building joints, in which the pull is to be installed, can be formed with a small joint width. This leads to significant functional and economic benefits. On the other hand, the overlap allows the formation of particularly simple and small connectors, which also ensures economic and functional advantages.
Die Vorrichtung kann vorzugsweise in Stahl- und Spannbetonkonstruktionen angewendet werden, wobei die kurze Längenentwicklung insbesondere im Zusammenhang mit Bauwerksfugen, über die Zugkräfte zu übertragen sind, besonders vorteilhaft ist. Mit der Vorrichtung können aber auch Zugkräfte von Bauteilen aus anderen Werkstoffen (wie z. B. Holz oder Stahl) in den Beton geleitet werden. Schließlich kann die Vorrichtung auch zur Übertragung von Zugkräften zwischen Holz und Stahl oder anderen geeigneten Werkstoffen günstig eingesetzt werden. The device may preferably be used in steel and prestressed concrete structures, wherein the short length development is particularly advantageous, in particular in connection with structural joints over which tensile forces are to be transmitted. With the device but also tensile forces of components made of other materials (such as, for example, wood or steel) are passed into the concrete. Finally, the device can also be used favorably for the transmission of tensile forces between wood and steel or other suitable materials.
Ein wesentlicher Vorteil dieser Konstruktion bei Anwendungen im Beton besteht darin, dass die Schlaufen gegenüber dem Zwischenstück durchaus noch einen durch Einbautoleranzen bedingten Abstand aufweisen dürfen und nicht zwingend formschlüssig angeordnet sein müssen. In diesem Fall werden die Kräfte durch den Beton von den Schlaufen auf das Zwischenstück übertragen. Im Gegensatz zu den bereits bekannten Vorrichtungen sind daher die Anforderungen an die Passgenauigkeit gering.An essential advantage of this construction in concrete applications is that the loops against the intermediate piece quite a through Installation tolerances may have conditional distance and not necessarily form-fitting must be arranged. In this case, the forces are transmitted through the concrete transferred from the loops on the intermediate piece. In contrast to the already known devices are therefore the requirements for the accuracy of fit low.
Infolge der Überlappung können die zu stoßenden zugbeanspruchten Bauelemente einen Höhenversatz aufweisen. Dies kann in bestimmten Anwendungsfällen des Stahl- und Spannbetonbaus ein wesentlicher Vorteil sein - nämlich dann, wenn für die zu stoßenden Bewehrungen unterschiedlich große Betondeckungsmaße einzuhalten sind (z. B. Betonstahl und nichtrostender Stahl). In diesem Fall kann das Verbindungselement so ausgelegt werden, daß beide Bewehrungen jeweils mit ihrer spezifischen Betondeckung eingebaut werden und damit zur Aufnahme von Biegezugkräften den jeweils maximal möglichen Hebelarm aufweisen. Due to the overlap, the tensile to colliding components can have a height offset on exhibit. This can be a significant advantage in certain applications of steel and prestressed concrete construction - namely, if different sized concrete cover dimensions are to be observed for the reinforcements to be repelled (eg reinforcing steel and stainless steel). In this case, the connecting element can be designed so that both reinforcements are installed in each case with their specific concrete cover and thus have the respective maximum possible lever arm for receiving bending tensile forces.
Je nach Anwendungsfall kann das hierbei entstehende Versatzmoment allein dadurch ausgeglichen werden, dass sich die Schlaufen rechtwinklig zu ihrer Ebene gegen den Beton abstützen. Zusätzlich können die Zwischenelemente aufgrund des Höhenversatzes so ausgebildet werden, daß das bei der Kraftübertragung entstehende Versatzmoment durch ein entgegenwirkendes Kräftepaar im Gleichgewicht gehalten wird. Depending on the application, the resulting offset moment can be compensated solely by the fact that the loops are supported at right angles to their plane against the concrete. In addition, the intermediate elements can be formed due to the height offset so that the resulting during the transmission torque offset moment is maintained by a counteracting force pair in equilibrium.
Nachstehend werden mögliche Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. Hierbei zeigen:
-
Figur 1 - einen Längsschnitt durch eine Stahlbetonplatte mit einer Schwindfuge, in der die Bewehrung mit einer erfindungsgemäßen Vorrichtung gestoßen wird,
-
Figur 2 - eine Draufsicht einer erfindungsgemäßen Vorrichtung, die vollständig kreisringförmig ausgebildet ist,
-
Figur 3 - einen axial geführten Längsschnitt der Vorrichtung gemäß
Figur 2, -
Figur 4 - eine Draufsicht auf eine Variante der erfindungsgemäßen Vorrichtung
gemäß
Figur 2, -
Figur 5 - einen axial geführten Längsschnitt der Vorrichtung gemäß
Figur 4 und - Figur 6
- einen Längsschnitt durch Holzbalken, die im Bereich einer wärmegedämmten Fuge mit Hilfe einer weiteren Variante der erfindungsgemäßen Vorrichtung biegesteif an eine Stahlbetonkonstruktion angeschlossen sind.
- FIG. 1
- a longitudinal section through a reinforced concrete slab with a Schwindfuge in which the reinforcement is pushed with a device according to the invention,
- FIG. 2
- a top view of a device according to the invention, which is completely annular,
- FIG. 3
- an axially guided longitudinal section of the device according to Figure 2,
- FIG. 4
- a top view of a variant of the device according to the invention according to Figure 2,
- FIG. 5
- an axially guided longitudinal section of the device according to Figure 4 and
- FIG. 6
- a longitudinal section through wooden beams, which are connected rigidly in the region of a thermally insulated joint using a further variant of the device according to the invention to a reinforced concrete structure.
Das Problem, daß Bewehrungen in Stahl- und Spannbetonkonstruktionen gestossen werden müssen und herkömmliche Übergreifungsstöße eine zu große Längenentwicklung erfordern würden, tritt insbesondere in Zusammenhang mit Bauwerksfugen auf, über die eine zugfeste Bewehrungsverbindung hergestellt werden soll. Beispiele sind hierfür Arbeits-, Dämm- und Schwindfugen. Ganz besonders im letztgenannten Beispiel ist es im Sinne einer möglichst einfachen Bauausführung wünschenswert, die durch den Übergreifungsstoß bedingte Fugenbreite zu minimieren. Muffenverbindungen können in diesem Fall aber nicht angewendet werden, weil sich die beidseits bereits einbetonierten Bewehrungsenden durch das Schwinden noch gegeneinander verschieben und auch nicht mehr verschrauben lassen.The problem that reinforcements encountered in steel and prestressed concrete constructions and conventional overlap shocks are too long would require, especially in connection with building joints via which a tensile reinforcement connection is to be made. Examples include working, insulating and shrinkage joints. Especially in the latter Example, it is desirable in terms of the simplest possible construction, to minimize the joint width caused by the lap joint. However, socket joints can not be used in this case because the reinforcement ends already embedded in concrete on both sides are due to shrinkage still shift against each other and no longer screw.
Die Figur 1 zeigt als Beispiel für diese Situation in einem Längsschnitt durch eine
Stahlbetonplatte, wie die Bewehrungen 1 im Bereich einer Schwindfuge 2 mit Hilfe
der erfindungsgemäßen Vorrichtungen 3 mit den weiterführenden Bewehrungen 4
zugfest verbunden werden können. Schwindfugen werden in Bauwerken angeordnet,
bei denen aufgrund der konstruktiven Randbedingungen durch das Schwinden
des Betons große Zwangsbeanspruchungen entstehen würden. Sie werden zu einem
möglichst späten Zeitpunkt nach Abschluß der Rohbauarbeiten wieder geschlossen.
Während die Breite der Schwindfugen bei herkömmlicher Ausbildung
von Übergreifungsstößen relativ groß wird und so für viele Arbeitsgänge zu unhandlich
ist, können die Folgearbeiten bei der hier gezeigten kurzen Fugenbreite nahezu
unbehindert ausgeführt werden.FIG. 1 shows an example of this situation in a longitudinal section through a
Reinforced concrete slab, like the
Die Figuren 2 und 3 bzw. 4 und 5 zeigen jeweils eine leicht abgewandelte Variante
der Vorrichtung aus der Figur 1, bei der es möglich ist, zunächst nur die beiden
Bewehrungsschlaufen 1 und 4 hinreichend paßgenau - ggf. mit einem ausreichenden
Toleranzmaß für Schwindverkürzungen - einzubauen. Das kreiszylindrisch
geformte Verbindungsstück 3 kann nachträglich eingesetzt werden. In anderen Anwendungsfällen
wie z. B. bei Fugen mit thermischer Trennung kann es dagegen
sinnvoll sein, das Verbindungsstück mit derjenigen Schlaufe, die durch die Dämmfuge
geführt wird, bereits vor dem Einbau zu verbinden.Figures 2 and 3 and 4 and 5 each show a slightly modified variant
the device of Figure 1, in which it is possible, initially only the two
In den Darstellungen der Figuren 3 und 5 zieht die Schlaufe 1 nach links und entsprechend
die Schlaufe 4 nach rechts. Das infolge des Höhenversatzes der beiden
Schlaufen entstehende Versatzmoment will das Verbindungsstück im
Uhrzeigersinn verdrehen. Dies wird jedoch dadurch verhindert, daß sich die
Schlaufe 1 an der Stelle A nach unten gegen den Beton abstützt. Aufgrund der vergleichsweise
geringen Zugfestigkeit des Betons ist es aber oft nicht möglich,
daß sich der nahe der Betonoberfläche 5 befindliche Punkt B der Schlaufe 4
sinngemäß abstützen kann. Zur Aufnahme dieser für das Gleichgewicht erforderlichen,
nach oben gerichteten Kraft dient deshalb im Beispiel der Figur 3 die am
Kreisring unten angeordnete Lasche 5.In the illustrations of Figures 3 and 5, the
Weiterhin sind in den Figuren 1 bis 5 verschiedene mögliche Varianten einer Montagehilfe
7 bzw. 8 bzw. 9 zur Lagesicherung der Bewehrungsschlaufen 1, 4 gegenüber
dem Zwischenstück 3 dargestellt. Dabei kann es sich um am Zwischenstück 3
angebrachte Anschläge, wie Laschen 7, Stifte 8, ganz oder teilweise umlaufende
Bünde 9 oder dergleichen handeln. Derartige Mittel können in der einen oder anderen
Anwendungsvariante sinnvoll sein.Furthermore, in the figures 1 to 5 different possible variants of a mounting
Die in den Figuren 4 und 5 dargestellte Variante unterscheidet sich von derjenigen
der Figuren 2 und 3 außer in der unterschiedlichen Montagehilfe auch noch in der
Aufnahme der entstehenden Versatzmomente: Bei der vorliegenden Variante wird
das rohrförmige Zwischenstück 3 einfach so weit nach unten geführt, daß es die für
das Gleichgewicht erforderliche Kraft über die Stirnfläche 10 mit ausreichender Sicherheit
in den Beton leiten kann.The variant shown in Figures 4 and 5 differs from that
Figures 2 and 3 except in the different mounting aid even in the
Recording the resulting offset moments: In the present variant is
the
Die Figur 6 zeigt als weitere mögliche Variante für die Anwendbarkeit der erfindungsgemäßen
Vorrichtung den biegesteifen Anschluß von Holzbalken 11 an eine
Stahlbetonplatte 12 im Bereich einer wärmegedämmten Fuge. Dazu werden zunächst
mit einer üblichen Konstruktion des aktuellen Ingenieurholzbaus die Biegezugkräfte
der Holzbalken mit Stabdübel in eine im Grundriß U-förmige Stahllasche
13 geleitet, die in einer Randaussparung des Holzbalkens angeordnet und nach
außen, d. h. hier rechts halbkreisförmig geschlossen sowie in halber Höhe eingeschlitzt
ist. Aus dem Beton ragt eine über die Dämmfuge geführte Zugschlaufe 15.
Bei der Montage der Holzbalken wird die Stahllasche mit ihrem Schlitz so weit über
die Zugschlaufe geschoben, bis das ringförmige Zwischenstück 14 zur Übertragung
der Zugkraft eingesetzt werden kann. Innerhalb des Betons werden in diesem Beispiel
die Zugkräfte mit Hilfe einer Vorrichtung etwa gemäß der Figuren 4 und 5 in die
Bewehrungsschlaufe 17 weitergeleitet. FIG. 6 shows, as a further possible variant, the applicability of the invention
Device the rigid connection of
Wenn die erfindungsgemäßen Vorrichtungen wie in den Beispielen der Figuren 1 bis 5, bzw. in der Figur 6 im rechten Teil, im Beton eingebettet sind, erhalten sie infolge der ihnen zugewiesenen Kraftübertragung fast ausschließlich Normalspannungen, da sie sich aufgrund der sehr steifen Bettung durch den Beton kaum verbiegen können. Aber auch im bei 14 angedeuteten Anwendungsfall auf der linken Seite der Figur 6 entstehen aufgrund der weitgehend rotationssymmetrischen Belastung fast ausschließlich Normalspannungen. Sie können daher in allen aufgezeigten Anwendungsfällen sehr wirtschaftlich dimensioniert werden.When the devices according to the invention as in the examples of FIGS 5, or in the figure 6 in the right part, embedded in the concrete, they get due the power transmission assigned to them almost exclusively normal stresses, because they hardly bend due to the very stiff bedding through the concrete can. But also in the case indicated at 14 application on the left side of Figure 6 arise almost due to the largely rotationally symmetric load only normal stresses. They can therefore be used in all applications shown be dimensioned very economically.
Die Biegezugkräfte treten hier im oberen Bereich des Holzbalkens 11 auf. Die erfindungsgemäße
Vorrichtung zur Übertragung von Zugkräften ist daher im oberen Bereich
angeordnet. Die im unteren Bereich des auskragenden Holzbalkens 11 auftretenden
Biegedruckkräfte und die Querkräfte werden durch eine hierfür vorgesehene
Druckplatte 18 aufgenommen, die horizontale und vertikale Stützflächenkomponenten
aufweist und mittels einer Diagonalanordnung die Querkräfte weiterleitet und
hierfür mit der Zugschlaufe 15 verbunden sein kann. Zur Weiterleitung der horizontalen
Druckkräfte ist sie mit einer weiteren, gegenläufig geneigten, der Stahlbetonplatte
12 zugeordneten Druckplatte 19 verbunden. Die beiden Druckplatten sind
hier etwa dachförmig gegeneinander geneigt.The bending tensile forces occur here in the upper region of the
Claims (10)
- A device for connecting construction members in a building that are subjected to tensile loads, particularly for the production of joints for reinforcement in the area of construction joints in constructions furnished with reinforcements, wherein at least one of the two construction members subjected to tensile loads (1, 4; 13, 15; 15, 17) preferably having a difference in height with respect to one another terminates in a tensioning loop that at least partly encompasses a connecting member (3; 14; 16) arranged such that its axis is perpendicular to the plane of the loop and supported by the respective other construction member and creating a positive attachment and that in an area defined by at least one tensioning loop has an external diameter corresponding to the rounded internal diameter of the loop, characterized in that the tensioning loops overlap each other and the connecting member is formed of a single piece.
- A device according to claim 1, characterized in that connecting member (3) spanning the overlap area is loosely attached opposite the two construction members under tensile load (1, 4) and has rounded circumferences that are arranged to face one another.
- A device according to either of the previous claims, characterized in that the connecting member (3; 14; 16) has a circular external structure at least on one side having a curved shape with constant radius.
- A device according to any of the previous claims, characterized in that the connecting member (3; 14; 16) has a cylindrical circumferential structure, and is preferably configured as a section of pipe or rod.
- A device according to any of the previous claims, characterized in that the connecting member (3) has at least one positioning member (7, 8, 9) attached to a loosely engaged construction member (1; 4) under tensile load.
- A device according to at least one of the previous claims, characterized in that the connecting member (3) is furnished with a device to prevent tilting.
- A device according to claim 6, characterized in that the connecting member (3) is furnished with a support element (5) preferably in the form of a strap that preferably projects outward radially from the lower edge of the connecting member and / or a fore-part (10) that is created by a downward extension.
- A device according to any of the previous claims, characterized in that the connecting member (3; 16) is attached to one of the loop-shaped construction members (1, 4; 15, 17) prior to assembly.
- A device according to claim 1, characterized in that when a beam (11) is connected, the construction member (13) attached thereto protrudes with a loop into a border recess and is slotted at a position in the middle so that the loop of the outwardly leading construction member (15) can be inserted.
- A device according to any of the previous claims, characterized in that at least the construction element (15) under tensile load and spanning two separated connecting members (14, 16) is connected by means of a diagonal tie to a device (18) offset therefrom with respect to height to receive compressive and / or shearing forces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29615017U | 1996-08-29 | ||
| DE29615017U DE29615017U1 (en) | 1996-08-29 | 1996-08-29 | Traction transmission device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0826845A2 EP0826845A2 (en) | 1998-03-04 |
| EP0826845A3 EP0826845A3 (en) | 1999-04-28 |
| EP0826845B1 true EP0826845B1 (en) | 2005-04-27 |
Family
ID=8028500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97114441A Expired - Lifetime EP0826845B1 (en) | 1996-08-29 | 1997-08-21 | Device for taking up tension forces |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0826845B1 (en) |
| AT (1) | ATE294296T1 (en) |
| DE (2) | DE29615017U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29905985U1 (en) * | 1999-04-01 | 1999-06-17 | Rojek, Richard, Prof. Dr.-Ing., 86316 Friedberg | Reinforcement device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE957685C (en) * | 1957-01-17 | Karl Kubler A G , Bauunternehmung, Stuttgart | Method for tensioning the tendons on prestressed concrete components | |
| FR652225A (en) * | 1928-04-05 | 1929-03-06 | Reinforced cement construction process and resulting new industrial products | |
| DE8417440U1 (en) * | 1984-06-08 | 1985-10-10 | Halfeneisen GmbH & Co KG, 4000 Düsseldorf | Console for connecting a cantilevered plate with a wall, ceiling or the like. |
| DE3634568C2 (en) * | 1986-01-20 | 1995-07-27 | Dennert Kg Veit | Clamping element for connecting precast concrete parts |
| DE9318354U1 (en) * | 1993-11-18 | 1994-03-24 | Max Frank Gmbh & Co Kg, 94339 Leiblfing | Balcony connection |
-
1996
- 1996-08-29 DE DE29615017U patent/DE29615017U1/en not_active Expired - Lifetime
-
1997
- 1997-08-21 DE DE59710944T patent/DE59710944D1/en not_active Expired - Fee Related
- 1997-08-21 EP EP97114441A patent/EP0826845B1/en not_active Expired - Lifetime
- 1997-08-21 AT AT97114441T patent/ATE294296T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE59710944D1 (en) | 2003-12-11 |
| DE29615017U1 (en) | 1996-12-05 |
| ATE294296T1 (en) | 2005-05-15 |
| EP0826845A3 (en) | 1999-04-28 |
| EP0826845A2 (en) | 1998-03-04 |
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