EP0286775B1 - Expansion joint section made from an elastic plastic material - Google Patents

Expansion joint section made from an elastic plastic material Download PDF

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Publication number
EP0286775B1
EP0286775B1 EP88100192A EP88100192A EP0286775B1 EP 0286775 B1 EP0286775 B1 EP 0286775B1 EP 88100192 A EP88100192 A EP 88100192A EP 88100192 A EP88100192 A EP 88100192A EP 0286775 B1 EP0286775 B1 EP 0286775B1
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EP
European Patent Office
Prior art keywords
expansion joint
profile according
joint profile
anyone
cover strip
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Expired - Lifetime
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EP88100192A
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German (de)
French (fr)
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EP0286775A1 (en
Inventor
Hermann Wegener
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Mageba GmbH
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Glacier GmbH Sollinger Huette GmbH
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Application filed by Glacier GmbH Sollinger Huette GmbH filed Critical Glacier GmbH Sollinger Huette GmbH
Priority to AT88100192T priority Critical patent/ATE56778T1/en
Publication of EP0286775A1 publication Critical patent/EP0286775A1/en
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    • 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
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6803—Joint covers
    • E04B1/6804—Joint covers specially adapted for floor parts

Definitions

  • the invention relates to a joint sealing profile made of elastic material for closing a joint between two structural parts, with an upper continuous central section, the surface of which forms a cover surface arranged in the region of the surface of the structural parts in the installed state, and with two side legs attached to the longitudinal ends of the central section , wherein the adjacent surfaces of the structural parts are designed to match the side surfaces of the profile legs.
  • the central section has a cross section in the form of a trapezoidal block with side surfaces converging from the surface thereof, the side legs formed on the block diverging in the direction of their free ends. It is provided that in an arrangement of this known joint sealing profile in a longitudinal joint between the building parts, the connection points of the two legs to the block are designed in the form of articulation points, and both the trapezoidal block and the legs of the profile can be movable relative to the adjacent surfaces of the building parts should. When installed, this joint sealing profile is only fixed by the fully embedded tabs and aligned by the legs supported on one side and the side surfaces of the block.
  • the trapezoidal block of the known profile is inclined, as a result of which the contact pressure between the side surface of the block and the adjacent surface of the lower structure and in this way also the sealing contact on both sides should be maintained .
  • the joints in the form of articulations of the legs to the block should allow the block good mobility, the lateral bitumen or concrete masses reaching to the side surfaces of the block and the legs forming a projecting edge in the region of the articulation points, which the retention of the The position of the articulation points in the predetermined area is guaranteed, even if a vertical offset occurs between the connected structural parts.
  • the thickness of the side legs is considerably less than that of the trapezoidal block, the massive design of which has to absorb the vertical loads of the central section.
  • joint sealing profiles for covering the joints between two adjacent parts of the building presupposes that such joint tapes can also perform the function of compensating for the relative movements between the building parts as easily as possible because the joint tapes are generally only integrated in the bridge insulation . Even if the main thing is to compensate for vertical offset movements of the building parts relative to one another, the joint tape must also absorb and compensate for horizontal movements of the building parts relative to one another as softly as possible.
  • the known joint sealing profile can only ensure the required compensation to a very limited extent when horizontal relative movements of the building parts occur, with the sealing contact closing especially when the building parts move horizontally apart (joint enlargement) Both side surfaces of the trapezoidal block and the adjacent concrete or bitumen covering are lost, a gap occurs between the side surface and the protective concrete and moisture can penetrate undesirably.
  • the thick design of the central section makes it relatively rigid, so that elastic expansion or compression when the structures are horizontally offset from one another can lead to the formation of waves on the surface of the block or to the above-mentioned signs of separation.
  • the object of the invention is to propose a joint sealing profile which, while largely avoiding the disadvantages shown, enables a deformation-less absorption of the relative displacement movements of the structural parts with respect to one another, in particular also the horizontal displacement movements, in which the stress load on the middle section covering the joint is reduced and in the event of detachments compared to the lateral protective concrete in the event of offset movements of the structural parts, they are completely eliminated or at least kept particularly low.
  • the central section is in the form of a relatively thin shroud which deflects under load formed and on each side leg a thickening is attached, on which an upper support surface is attached to abut a portion of the underside of the shroud, this support surface is preferably arranged away from the underside of the shroud at a distance of a small gap such that the gap when extending the cover tape is lifted under load.
  • the middle section As a relatively thin shroud compared to the thick, block-shaped middle section of the known joint tape, it is first achieved that, when a vertical load occurs, the middle section no longer has to take over the transmission of the occurring vertical forces into the side legs, but rather give in downwards can and thereby enables the support on the support surfaces.
  • the introduction of the vertical forces directly from above via the support surfaces into the side legs also causes the side legs to be loaded even in the direction of good contact with the side concrete and thus completely prevents the occurrence of detachments in most load cases.
  • the lower leg sections are therefore and also due to the thickening in any case firmly against the side concrete, i.e. Relative movements to the protective concrete do not occur (in contrast to the known profile). If, in the unloaded state of the profile, the support surfaces are arranged at a distance of a small gap from the underside of the cover band, the cover band springs out under load until the gap completely disappears, as a result of which the cover band comes into contact with the support surfaces and then the vertical load that occurs can be introduced into the corresponding thickenings of the side legs via these support surfaces.
  • the thickenings can be provided with any suitable shape in order to derive the forces occurring as cheaply as possible.
  • elastic materials in particular elastic plastics (elastomers) or also natural rubber (NR) can be used as the elastic material for the joint sealing profile according to the invention.
  • the joint tape according to the invention can react relatively softly because the expansion of the central section which occurs at the same time is easily possible as a result of its design as a thin cover tape.
  • the middle section above, bridging the joint is almost kept free from the absorption of vertical loads that occur, by separating functions for absorbing vertical loads on the one hand by thickening the lateral legs arranged below the central section and absorbing the compensating forces, in particular in the case of a gap enlargement by means of an elastic one Elongation of the relatively thin shroud on the other hand can be done by separate sections of the joint sealing profile.
  • This is a fundamental advantage if only because each of the force-absorbing profile parts can be specially adapted to its special function and can be designed and shaped independently of the function of the other force-absorbing parts.
  • an improved absorption of forces and thus a more targeted design of the entire sealing profile for the forces occurring during use can be achieved, whereby the risk of undesired permanent deformations can also be excluded or at least minimized.
  • each side leg consists of two leg sections, the lower of which has the thickening and the upper, on the other hand, are significantly thinner, the shroud connecting the two thinner leg sections, and that the lower leg section on one side protrudes into the height extension region of the upper leg section, which is substantially thicker than the upper leg section and has the support surface at its upper end.
  • each side leg also ensures that the middle section does not run into a rigid and relatively immovable holder as soon as it opens into each side leg, but rather that the upper part of each side leg also makes a contribution for a soft resilience of the upper shroud in its longitudinal extent and only the lower section of each side leg, on which the thickening with the support surface is arranged to absorb the horizontal forces, represents a correspondingly more rigid, force-transmitting component.
  • a very particularly preferred embodiment in the joint sealing profile according to the invention is that on the top of each projection one in the direction of the profile center line downward inclined connecting surface is formed towards the supporting surface and, again preferably, has a longitudinal extension; which corresponds essentially to the longitudinal extent of the support surface.
  • a suitable angle of inclination can be selected for the slope.
  • an angle between 10 ° and 30 ° to the level of the support surface is very particularly preferably inclined downwards.
  • each inclined connecting surface is particularly preferably arranged separately from the associated supporting surface via a wedge-shaped incision or a notch, which has the advantage that even a certain change in the angle between the two surfaces is then possible, as a result of the notch up to one To some extent, a relative pivoting of both surfaces is still possible.
  • the support surfaces can also be divided into a plurality of partial support surfaces by such incisions running in the longitudinal direction of the joint sealing profile, as a result of which a better adaptation of the total support surface formed in this way to an oddly running counter surface of the cover tape is possible.
  • the thickness of the shroud is preferably chosen to be at least one and at most twice the thickness of the upper leg sections, again, preferably, being substantially constant along the extent of the shroud. In this way, an excellent functionality can be obtained with a simple shape.
  • the joint sealing profile according to the invention is very particularly preferably provided with a profile cross section which is symmetrical with respect to its profile center line, as a result of which particularly favorable absorption of occurring loads is ensured.
  • the size of the support surfaces is advantageously chosen so that - seen in profile cross-section - the total area of all support surfaces supporting the shroud from below is 40% to 60%, but preferably about half the area of the underside of the shroud.
  • angled tabs are also formed on the free end of the side legs in the direction of the main plane of the building parts, along which the integration into the insulation on the side building parts can then take place, which in connection with the thickened side leg section results in a particularly rigid design of the Transition from the side leg end to the tab results and thereby the immovable position of the partial section formed from the thickened side leg section and tab is secured relative to the protective concrete, ie Any detachment of the side surfaces there from the adjacent protective concrete layer and any relative movement between these parts is completely avoided.
  • the upwardly projecting projection of each lower leg section is preferably designed to rise obliquely in the direction of the profile center line, thereby ensuring a favorable dissipation of the forces absorbed into the thickened lateral leg sections.
  • the protrusion is preferably made with an increasing thickness.
  • the upwardly projecting projection is very particularly preferably offset at a lateral distance from the upper leg section, so that the most suitable distribution of the support surfaces below the upper cover band can be achieved by a suitable choice of distance.
  • Another preferred embodiment of the joint sealing profile according to the invention also consists in the fact that the lower leg section has a thickness that decreases towards its free end. For special applications, however, it may be equally desirable that the thickening of the same be carried out substantially constant over the length of the lower side section.
  • a cross-sectional reduction in the form of a profile indentation which is directed inward from the outside of the side leg and is preferably rounded, is provided in order to facilitate the pivoting of the respective upper side leg section (and thus also of the cover tape attached to this) relative to the massive, immovable, thick, lower leg section.
  • a friction-reducing coating e.g. Polytetrafluoroethylene (PTFE).
  • the cross section of the joint sealing tapes shown in all figures has an upper middle section 1 in the form of a cover tape, on the two lateral ends of which legs 2, 3 are attached.
  • the side legs 2 and 3 each consist of two leg sections 4, 6 and 5, 7.
  • the upper leg sections 4, 5 are made relatively thin, while the lower leg sections 6, 7 have a massive thickening, but different in shape can be trained.
  • the thickened leg sections 6, 7 each have a projection 8 and 9, which protrudes upwards obliquely towards the profile center line MM (FIG. 1), this projection, as can be seen well from the figures protrudes up into the area over which the lateral upper leg section 4 or 5 extends (in height).
  • a support surface 12, 13 is formed at the top of each projection 8, 9 at a small distance S from the underside 1 'of the shroud 1, the alignment of which (in the unloaded state of the joint tape) is essentially parallel to the alignment of the underside 1' of the shroud 1 runs.
  • the start of the support surface 12, 13 is offset laterally by a distance A laterally from the corresponding upper section 4, 5 of the relevant side leg 2, 3, and each support surface 12, 13 extends over a longitudinal extension L. , which in the embodiments shown in FIGS. 1, 2 and 5 each corresponds to about a quarter of the total extent of the underside of the shroud 1 '.
  • a cross-sectional constriction is provided, in the form of one from the side surface of the relevant side leg 2, 3 inward, circular segment-shaped bulge 10, as shown in FIGS. 1, 2 and 5.
  • This cross-sectional constriction which in its lower area can also run a little into the area of the lower leg section 6, 7, enables easier pivoting of the respective upper leg section 4, 5 relative to the lower, rigid, immovable thickened leg section 6, 7. which contributes to an improved mobility of the upper shroud 1 and the two upper leg sections 4 and 5 which are directly connected to it, relative to the rigid blocks 6 and 7 arranged underneath.
  • the thickness d i , d 2 of the upper leg sections 4 and 5 is approximately as large as the thickness D of the upper shroud 1 in the illustration according to FIGS. 1 and 2.
  • FIG. 2 shows, compared to the profile shape from FIG. 1, the change that the profile thickening below the respective support surface 12, 13 remains essentially the same over the height of the respective lower thickened leg section 6, 7, while in the embodiment according to FIG 1 there is a cross-sectional shape which tapers over the height of the lower leg section 6, 7 in each case in the direction of its free end.
  • each support surface 12, 13 is divided by a notch-shaped incision 26 'into two partial support surfaces 12', 12 'and 13', 13 ', which can be adjusted at a small angle to one another when corresponding loads occur, as a result of which better adaptability to the Shape of the counter surface l 'is possible.
  • the joint sealing profile shown in FIG. 1 is shown in FIG. 5 in the installed position between two bridge structures, between which a joint of width W is to be bridged.
  • the tabs 11 which are angled laterally at the free ends of the lower leg sections in the direction of the main plane of the building parts, are placed on the top of the building parts 20, 21 with the interposition of sealing strips 22, 23 and then laterally with a concrete - or bitumen layer 18, 19, in which reinforcements 24, 25 are attached, supported laterally.
  • the joint sealing profile which is shown in FIGS. 3 and 4, differs from the joint sealing profile from FIG. 1 in that the support surfaces 12, 13 no longer have a continuously common orientation, but only in their first, the relevant upper leg section 4, 5 facing initial part along a length L to the underside 1 'of the upper shroud 1 are aligned, which is separated by a deep and narrow notch groove 26, a connection surface 14 or inclined at an angle downwards towards the center of the profile cross section 15 a length L '(which corresponds approximately to the length L of the support surface 12 or 13).
  • This ensures that in the installed state of the profile seal, as shown in Fig. 4, when a vertical offset h occurs between the two structural parts, the support surfaces 12, 14 attached to the higher structural part emit a particularly well-adapted support on the underside of the shroud 1.
  • the profile seals themselves are made from a suitable elastomeric plastic, but in certain applications vulcanized natural rubber can also be used (e.g. for use in extremely cold temperatures).

Abstract

1. Expansion joint profile made from an elastic material for sealing a joint between two structural parts, with an upper, through central portion (1), whose surface in the fitted state forms a covering surface located on the level of the surface of the structural parts, as well as with two side legs (2, 3) fitted to the longitudinal ends of the central portion (1), the engaging faces of the structural parts being constructed so as to adapt to the lateral faces of the profile legs (2, 3), characterized in that the central portion is constructed as a cover strip (1) springing out under load and a thickened part (6, 8; 7, 9) is fitted to each side leg (2, 3) and on said thickened part is formed an upper supporting surface (4) for engaging a portion of the underside (1') of the cover strip (1).

Description

Die Erfindung bezieht sich auf ein aus elastischem Werkstoff bestehendes Fugendichtungsprofil zum Abschließen einer Fuge zwischen zwei Bauwerksteilen, mit einem oberen durchgehenden Mittelabschnitt, dessen Oberfläche im Einbauzustand eine im Bereich der Oberfläche der Bauwerksteile angeordnete Deckfläche ausbildet, sowie mit zwei an den Längsenden des Mittelabschnitts angebrachten Seitenschenkel, wobei die anliegenden Flächen der Bauwerksteile in Anpassung an die Seitenflächen der Profilschenkel ausgebildet sind.The invention relates to a joint sealing profile made of elastic material for closing a joint between two structural parts, with an upper continuous central section, the surface of which forms a cover surface arranged in the region of the surface of the structural parts in the installed state, and with two side legs attached to the longitudinal ends of the central section , wherein the adjacent surfaces of the structural parts are designed to match the side surfaces of the profile legs.

Bei einem solchen bekannten Fugendichtungsprofil (DE-C 26 47 839) weist der Mittelabschnitt einen Querschnitt in Form eines trapezförmigen Blockes mit von der Oberfläche desselben aus konvergierenden Seitenflächen auf, wobei die an den Block angeformten Seitenschenkel in Richtung ihrer freien Enden divergieren. Dabei ist vorgesehen, daß bei einer Anordnung dieses bekannten Fugendichtungsprofiles in einer Längsfuge zwischen den Bauwerksteilen die Anschlußstellen der beiden Schenkel an den Block in Form von Gelenkpunkten ausgebildet sind und sowohl der trapezförmige Block wie auch die Schenkel des Profils gegenüber den anliegenden Flächen der Bauwerksteile bewegbar sein sollen. Im Einbauzustand wird dieses Fugendichtungsprofil nur durch die vollständig eingebetteten Laschen fixiert und durch die einseitig abgestützten Schenkel und die Seitenflächen des Blocks ausgerichtet. Bei einer vertikalen Verschiebung der beiden mit dem Fugendichtungsprofil verbundenen Bauwerksprofile zueinander stellt sich der trapezförmige Block des bekannten Profiles schräg, wodurch der Anpreßdruck zwischen der Seitenfläche des Blocks und der anliegenden Fläche des tieferliegenden Bauwerks und auf diese Weise auch der Dichtungskontakt auf beiden Seiten erhalten bleiben soll. Die in Form von Gelenken ausgebildeten Anschlußstellen der Schenkel an den Block sollen dem Block eine gute Bewegbarkeit gestatten, wobei die bis an die Seitenflächen des Blocks und der Schenkel heranreichenden seitlichen Bitumen- oder Betonmassen im Bereich der Gelenkpunkte eine vorspringende Kante ausbilden, welche die Beibehaltung der Lage der Gelenkpunkte in dem vorbestimmten Bereich gewährleistet, auch wenn ein Vertikalversatz zwischen den verbundenen Bauwerksteilen auftritt. Die Dicke der Seitenschenkel ist dabei wesentlich geringer als die des trapezförmigen Blocks, dessen massive Ausgestaltung die vertikalen Lasten des Mittelabschnitts aufzunehmen hat.In such a known joint sealing profile (DE-C 26 47 839), the central section has a cross section in the form of a trapezoidal block with side surfaces converging from the surface thereof, the side legs formed on the block diverging in the direction of their free ends. It is provided that in an arrangement of this known joint sealing profile in a longitudinal joint between the building parts, the connection points of the two legs to the block are designed in the form of articulation points, and both the trapezoidal block and the legs of the profile can be movable relative to the adjacent surfaces of the building parts should. When installed, this joint sealing profile is only fixed by the fully embedded tabs and aligned by the legs supported on one side and the side surfaces of the block. With a vertical displacement of the two structural profiles connected to the joint sealing profile, the trapezoidal block of the known profile is inclined, as a result of which the contact pressure between the side surface of the block and the adjacent surface of the lower structure and in this way also the sealing contact on both sides should be maintained . The joints in the form of articulations of the legs to the block should allow the block good mobility, the lateral bitumen or concrete masses reaching to the side surfaces of the block and the legs forming a projecting edge in the region of the articulation points, which the retention of the The position of the articulation points in the predetermined area is guaranteed, even if a vertical offset occurs between the connected structural parts. The thickness of the side legs is considerably less than that of the trapezoidal block, the massive design of which has to absorb the vertical loads of the central section.

Die Aufgabe der Fugendichtungsprofile für die Abdeckung der Fugen zwischen zwei nebeneinanderliegenden Bauwerksteilen setzt voraus, daß solche Fugenbänder neben anderem auch die Funktion erfüllen können, die zwischen den Bauwerksteilen auftretenden Relativbewegungen zueinander möglichst verformungsweich auszugleichen, weil die Fugenbänder in aller Regel nur in der Brückenisolierung eingebunden sind. Auch wenn in der Hauptsache vertikale Versatzbewegungen der Bauwerksteile zueinander auszugleichen sind, muß das Fugenband jedoch gleichermaßen auch horizontale Bewegungen der Bauwerksteile zueinander möglichst verformungsweich aufnehmen und ausgleichen.The task of the joint sealing profiles for covering the joints between two adjacent parts of the building presupposes that such joint tapes can also perform the function of compensating for the relative movements between the building parts as easily as possible because the joint tapes are generally only integrated in the bridge insulation . Even if the main thing is to compensate for vertical offset movements of the building parts relative to one another, the joint tape must also absorb and compensate for horizontal movements of the building parts relative to one another as softly as possible.

Das bekannte Fugendichtungsprofil kann aufgrund der sehr massiven Ausbildung seines oberen Mittelabschnitts in Form eines trapezförmigen, massiven Blockes beim Auftreten horizontaler Relativbewegungen der Bauwerksteile zueinander nur in sehr beschränktem Maße den erforderlichen Ausgleich sicherstellen, wobei insbesondere bei einem horizontalen Auseinanderbewegen der Bauwerksteile (Fugenvergrößerung) der Dichtungskontakt zu beiden Seitenflächen des trapezförmigen Blockes und dem anliegenden Beton- oder Bitumenbelag verlorengeht, es dabei zum Auftreten eines Spaltes zwischen Seitenfläche und Schutzbeton kommt und Feuchtigkeit unerwünscht eindringen kann. Die dicke Ausbildung des Mittelabschnitts macht diesen relativ starr, so daß eine elastische Dehnung oder Kompression bei Horizontalversatz der Bauwerke zueinander zur Wellenbildung auf der Oberfläche des Blocks oder zu den bereits genannten Ablösungserscheinungen führen kann. Darüberhinaus führt die sehr massive Ausbildung des Mittelabschnitts des bekannten Fugenbandes auch noch dazu, daß alle auftretenden und aufzunehmenden Kräfte innerhalb dieses trapezförmigen Blockquerschnitts übertragen und aufgenommen werden müssen, was konstruktiv grundsätzlich nicht günstig ist und zum Auftreten unerwünschter Zwangsspannungen sowie, in Verbindung hiermit, zu Gefahr von Rißbildungen o.ä. führen kann.Due to the very massive design of its upper middle section in the form of a trapezoidal, solid block, the known joint sealing profile can only ensure the required compensation to a very limited extent when horizontal relative movements of the building parts occur, with the sealing contact closing especially when the building parts move horizontally apart (joint enlargement) Both side surfaces of the trapezoidal block and the adjacent concrete or bitumen covering are lost, a gap occurs between the side surface and the protective concrete and moisture can penetrate undesirably. The thick design of the central section makes it relatively rigid, so that elastic expansion or compression when the structures are horizontally offset from one another can lead to the formation of waves on the surface of the block or to the above-mentioned signs of separation. In addition, the very massive design of the central section of the known joint tape also means that all occurring and to be absorbed forces must be transmitted and absorbed within this trapezoidal block cross-section, which is fundamentally not structurally favorable and the occurrence of undesirable forced stresses and, in connection with this, a risk of cracks or similar can lead.

Aber auch bei Auftreten von Vertikalversatz zwischen den Bauwerksteilen treten bei dem bekannten Fugendichtungsprofil Ablösungen der Seitenschenkel vom Schutzbeton bei dem am höheren Bauwerksteil vorliegenden Seitenschenkel auf. Beim praktischen Einsatz eines solchen Profiles bei Brücken können auch infolge der dort auftretenden dynamischen Belastungen infolge rascher vertikaler und horizontaler Bewegungen zwischen den Bauwerksteilen unerwünschte bleibende Verformungen auftreten, die sich aus der dabei erfolgenden starken Druckbeanspruchung des massiven Blocks ergeben und durch die wiederum die Dauerfunktionsfähigkeit des Gesamtpprofiles ungünstig beeinflußt wird.But even if vertical offset occurs between the building parts, detachment of the side legs from the protective concrete occurs in the known joint sealing profile in the side leg present on the higher part of the building. In practical use of such a profile for bridges, undesirable permanent deformations can also occur as a result of the dynamic loads occurring there as a result of rapid vertical and horizontal movements between the structural parts, which result from the strong pressure load on the solid block and the permanent functionality of the overall profile is adversely affected.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Fugendichtungsprofil vorzuschlagen, das unter weitestgehender Vermeidung der aufgezeigten Nachteile eine verformungsweichere Aufnahme der relativen Versatzbewegungen der Bauwerksteile zueinander, insbesondere auch der horizontalen Versatzbewegungen, ermöglicht, bei dem die Spannungsbelastung des die Fuge überdeckenden Mittelabschnitts verkleinert wird und bei dem auftretende Ablösungen gegenüber dem seitlichen Schutzbeton bei Versatzbewegungen der Bauwerksteile völlig entfallen oder zumindest besonders gering gehalten werden.Proceeding from this, the object of the invention is to propose a joint sealing profile which, while largely avoiding the disadvantages shown, enables a deformation-less absorption of the relative displacement movements of the structural parts with respect to one another, in particular also the horizontal displacement movements, in which the stress load on the middle section covering the joint is reduced and in the event of detachments compared to the lateral protective concrete in the event of offset movements of the structural parts, they are completely eliminated or at least kept particularly low.

Erfindungsgemäß wird dies bei einem Fugendichtungsprofil der eingangs genannten Art dadurch erreicht, daß der Mittelabschnitt als ein unter Belastung einfederndes, relativ dünnes Deckband ausgebildet und an jedem Seitenschenkel eine Verdickung angebracht ist, auf der eine obere Stützfläche zur Anlage eines Teilabschnitts der Unterseite des Deckbandes angebracht ist, wobei diese Stützfläche vorzugsweise von der Unterseite des Deckbandes im Abstand eines kleinen Spaltes entfernt derart angeordnet ist, daß der Spalt beim Ausfedem des Deckbandes unter Belastung aufgehoben wird.According to the invention, this is achieved with a joint sealing profile of the type mentioned at the outset in that the central section is in the form of a relatively thin shroud which deflects under load formed and on each side leg a thickening is attached, on which an upper support surface is attached to abut a portion of the underside of the shroud, this support surface is preferably arranged away from the underside of the shroud at a distance of a small gap such that the gap when extending the cover tape is lifted under load.

Bei dem erfindungsgemäßen Fugendichtungsprofil wird eine funktionelle Trennung und Zuordnung der Aufnahme der auftretenden Kräfte durch unterschiedliche Profilteile bewirkt. Durch die Ausbildung des Mittelabschnitts als ein im Vergleich zu dem dicken, blockförmigen Mittelabschnitt des bekannten Fugenbandes relativ dünnes Deckband wird zunächst erreicht, daß bei Auftreten einer Vertikalbelastung der Mittelabschnitt nicht mehr die Übertragung der auftretenden Vertikalkräfte in die Seitenschenkel übernehmen muß, sondern gezielt nach unten nachgeben kann und dadurch die Abstützung auf den Stützflächen ermöglicht. Die Einleitung der Vertikalkräfte direkt von oben über die Stützflächen in die Seitenschenkel bewirkt ferner, daß dabei auch die Seitenschenkel sogar in Richtung auf eine gute Anlage am seitlichen Beton belastet werden und damit das Auftreten von Ablösungen in den meisten Belastungsfällen völlig unterbunden wird. Die unteren Schenkelabschnitte liegen deshalb und auch wegen der Verdickung in jedem Fall fest am seitlichen Beton an, d.h. Relativbewegungen zum Schutzbeton treten (anders als beim bekannten Profil) nicht auf. Falls die Stützflächen im unbelasteten Zustand des Profiles im Abstand eines kleinen Spaltes von der Unterseite des Deckbandes entfernt angeordnet sind, federt das Deckband bei Belastung nach unten so weit aus, bis der Spalt vollständig verschwindet, wodurch das Deckband gegen die Stützflächen zur Anlage kommt und dann die auftretende Vertikalbelastung über diese Stützflächen in die entsprechenden Verdickungen der Seitenschenkel eingeleitet werden kann. Dabei können die Verdickungen mit jeder geeigneten Formgebung versehen werden, um die auftretenden Kräfte möglichst günstig abzuleiten.In the joint sealing profile according to the invention, functional separation and assignment of the absorption of the forces occurring is brought about by different profile parts. By designing the middle section as a relatively thin shroud compared to the thick, block-shaped middle section of the known joint tape, it is first achieved that, when a vertical load occurs, the middle section no longer has to take over the transmission of the occurring vertical forces into the side legs, but rather give in downwards can and thereby enables the support on the support surfaces. The introduction of the vertical forces directly from above via the support surfaces into the side legs also causes the side legs to be loaded even in the direction of good contact with the side concrete and thus completely prevents the occurrence of detachments in most load cases. The lower leg sections are therefore and also due to the thickening in any case firmly against the side concrete, i.e. Relative movements to the protective concrete do not occur (in contrast to the known profile). If, in the unloaded state of the profile, the support surfaces are arranged at a distance of a small gap from the underside of the cover band, the cover band springs out under load until the gap completely disappears, as a result of which the cover band comes into contact with the support surfaces and then the vertical load that occurs can be introduced into the corresponding thickenings of the side legs via these support surfaces. The thickenings can be provided with any suitable shape in order to derive the forces occurring as cheaply as possible.

Als elastisches Material für das erfindungsgemäße Fugendichtungsprofil können alle geeigneten elastischen Werkstoffe, insbesondere elastische Kunststoffe (Elastomere) oder auch Naturkautschuk (NR) eingesetzt werden.All suitable elastic materials, in particular elastic plastics (elastomers) or also natural rubber (NR) can be used as the elastic material for the joint sealing profile according to the invention.

Treten horizontale Verschiebungen der Bauwerksteile zueinander auf, so führt dies für den Fall, daß keine Vertikalbelastung vorliegt, dazu, daß nur der als dünnes Deckband ausgebildete Mittelabschnitt die auftretenden Kräfte in die Seitenschenkel einleitet und die Stützvorsprünge funktionell nicht eingeschaltet sind. Dies ist, anders als bei einer massiven und dicken Ausbildung des Mittelabschnitts, gerade bei einer dünnen Ausbildung des Deckbandes relativ leicht möglich, da hier die Möglichkeit zu einer elastischen Dehnung (bei Spaltvergrößerung) gegeben ist, ohne daß dabei unerwünschte Zwangskräfte auftreten, oder, im Falle einer Spaltverkleinerung, kann das Deckband durch geringe vertikale Versatzbewegungen diese horizontale Spaltverengung unschwer ausgleichen.If there are horizontal displacements of the building parts relative to one another, this means that, in the event that there is no vertical load, only the middle section designed as a thin shroud introduces the forces that occur into the side legs and the support projections are not functionally switched on. This is, unlike in the case of a massive and thick design of the central section, relatively easy, especially with a thin design of the shroud, since here there is the possibility of elastic stretching (in the case of widening of the gap) without undesirable constraining forces occurring, or, im In the event of a gap reduction, the cover band can easily compensate for this horizontal gap narrowing by slight vertical offset movements.

Auch wenn eine vertikale Versatzbewegung der Bauwerksteile zueinander auftritt, kann das erfindungsgemäße Fugenband relativ verformungsweich reagieren, weil die dabei gleichzeitig auftretende Dehnung des Mittelabschnitts infolge dessen Ausbildung als dünnes Deckband unschwer möglich ist.Even if a vertical offset movement of the structural parts occurs with respect to one another, the joint tape according to the invention can react relatively softly because the expansion of the central section which occurs at the same time is easily possible as a result of its design as a thin cover tape.

Beim erfindungsgemäßen Dichtungsprofil ist der obenliegende, die Fuge überbrückende Mitteiabschnitt von der Aufnahme auftretender Vertikalbelastungen nahezu freigehalten, indem eine Funktionstrennung für die Aufnahme von Vertikallasten einerseits durch unterhalb des Mittelabschnitts angeordnete Verdickungen an den seitlichen Schenkeln und die Aufnahme der Ausgleichskräfte insbesondere bei einer Spaltvergrößerung durch eine elastische Dehnung des relativ dünnen Deckbandes andererseits durch voneinander getrennte Abschnitte des Fugendichtungsprofiles erfolgen kann. Dies ist ein grundsätzlicher Vorteil schon deshalb, weil jedes der Kräfte aufnehmenden Profilteile seiner speziellen Funktion besonders angepaßt und unabhängig von der Funktion der andere Kräfte aufnehmenden Teile ausgelegt und geformt werden kann. Hierdurch läßt sich insgesamt eine verbesserte Kräfteaufnahme und dadurch ein gezielteres Auslegen des gesamtem .Dichtungsprofiles auf die im Einsatz auftretenden Kräfte erreichen, wodurch die Gefahr des Auftretens unerwünschter bleibender Verformungen ebenfalls ausgeschlossen oder zumindest minimiert werden kann.In the sealing profile according to the invention, the middle section above, bridging the joint, is almost kept free from the absorption of vertical loads that occur, by separating functions for absorbing vertical loads on the one hand by thickening the lateral legs arranged below the central section and absorbing the compensating forces, in particular in the case of a gap enlargement by means of an elastic one Elongation of the relatively thin shroud on the other hand can be done by separate sections of the joint sealing profile. This is a fundamental advantage if only because each of the force-absorbing profile parts can be specially adapted to its special function and can be designed and shaped independently of the function of the other force-absorbing parts. As a result, an improved absorption of forces and thus a more targeted design of the entire sealing profile for the forces occurring during use can be achieved, whereby the risk of undesired permanent deformations can also be excluded or at least minimized.

Eine besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Fugendichtungsprofiles besteht darin, daß jeder Seitenschenkel aus zwei Schenkelabschnitten besteht, deren untere die Verdickung aufweist und deren oberer demgegenüber wesentlich dünner sind, wobei das Deckband die beiden dünneren Schenkelabschnitte miteinander verbindet, und daß der untere Schenkelabschnitt auf seiner Oberseite einen in den Höhen-Erstreckungsbereich des oberen Schenkelabschnitts hinaufragenden Vorsprung trägt, der wesentlich dicker als der obere Schenkelabschnitt ausgebildet ist und an seinem oberen Ende die Stützfläche aufweist. Durch die Anordnung eines relativ dünnen oberen Schenkelabschnitts an jedem Seitenschenkel wird auch noch erreicht, daß der Mittelabschnitt nicht schon unmittelbar bei seiner Einmündung in jeden Seitenschenkel in eine starre und relativ unbewegliche Halterung einläuft, sondern daß vielmehr auch der obere Teil eines jeden Seitenschenkels noch einen Beitrag für eine verformungsweiche Nachgiebigkeit des oberen Deckbandes in dessen Längserstreckung liefert und erst der untere Abschnitt jedes Seitenschenkeis, an dem die Verdickung mit der Stützfläche zur Aufnahme der Horizontalkräfte angeordnet ist, ein entsprechend starrer ausgebildetes, Kräfte übertragendes Bauteil darstellt.A particularly advantageous embodiment of the joint sealing profile according to the invention is that each side leg consists of two leg sections, the lower of which has the thickening and the upper, on the other hand, are significantly thinner, the shroud connecting the two thinner leg sections, and that the lower leg section on one side protrudes into the height extension region of the upper leg section, which is substantially thicker than the upper leg section and has the support surface at its upper end. The arrangement of a relatively thin upper leg section on each side leg also ensures that the middle section does not run into a rigid and relatively immovable holder as soon as it opens into each side leg, but rather that the upper part of each side leg also makes a contribution for a soft resilience of the upper shroud in its longitudinal extent and only the lower section of each side leg, on which the thickening with the support surface is arranged to absorb the horizontal forces, represents a correspondingly more rigid, force-transmitting component.

Eine ganz besonders bevorzugte Ausgestaltung besteht bei dem erfindungsgemäßen Fugendichtungsprofil darin, daß auf der Oberseite jedes Vorsprungs eine sich in Richtung auf die Profilmittellinie hin an die Stützfläche anschließende, nach unten geneigt verlaufende Anschlußfläche ausgebildet ist, die, wiederum vorzugsweise, eine Längserstreckung aufweist; die im wesentlichen der Längserstreckung der Stützfläche entspricht. Für die Schräge kann, je nach dem Einsatzerfordernis, ein geeigneter Neigungswinkel ausgewählt werden. Ganz besonders bevorzugt wird jedoch ein Winkel zwischen 10° und 30° zur Ebene der Stützfläche nach unten geneigt vorgesehen. Durch diese Ausgestaltung kann erreicht werden, daß beim Auftreten eines Vertikalversatzes der Bauwerksteile zueinander bei dem Bauwerksteil, das höher als das andere liegt, die Abstützung der Unterseite des Deckbandes dessen erzwungener Schräglage besser angepaßt werden kann, indem die Abstützfläche längs ihrer Gesamterstreckung über zwei im Winkel zueinander angeordnete Ausrichtungen verfügt. Besonders bevorzugt wird aber jede schräge Anschlußfläche über einen keilförmigen Einschnitt bzw. eine Kerbe von der zugeordneten Stützfläche getrennt angeordnet, wodurch sich der Vorteil ergibt, daß dann sogar noch eine gewisse Änderung des Winkels zwischen beiden Flächen möglich ist, da infolge der Kerbe bis zu einem gewissen Maße noch eine relative Verschwenkung beider Flächen möglich ist. Vorzugsweise können aber auch die Stützflächen durch solche in Längsrichtung des Fugendichtungsprofiles verlaufende Einschnitte in eine Mehrzahl von Teilstützflächen unterteilt sein, wodurch eine bessere Anpassung der so gebildeten Gesamtstützfläche an eine ungerade verlaufende Gegenfläche des Deckbandes möglich wird.A very particularly preferred embodiment in the joint sealing profile according to the invention is that on the top of each projection one in the direction of the profile center line downward inclined connecting surface is formed towards the supporting surface and, again preferably, has a longitudinal extension; which corresponds essentially to the longitudinal extent of the support surface. Depending on the application, a suitable angle of inclination can be selected for the slope. However, an angle between 10 ° and 30 ° to the level of the support surface is very particularly preferably inclined downwards. With this configuration, it can be achieved that when a vertical offset of the structural parts to one another occurs in the structural part which is higher than the other, the support of the underside of the shroud whose forced inclined position can be better adapted by the support surface along its total extent over two at an angle aligned to each other. However, each inclined connecting surface is particularly preferably arranged separately from the associated supporting surface via a wedge-shaped incision or a notch, which has the advantage that even a certain change in the angle between the two surfaces is then possible, as a result of the notch up to one To some extent, a relative pivoting of both surfaces is still possible. Preferably, however, the support surfaces can also be divided into a plurality of partial support surfaces by such incisions running in the longitudinal direction of the joint sealing profile, as a result of which a better adaptation of the total support surface formed in this way to an oddly running counter surface of the cover tape is possible.

Bevorzugt wird die Dicke des Deckbandes mindestens der einfachen und höchstens der doppelten Dicke der oberen Schenkelabschnitte entsprechend gewählt, wobei sie, erneut vorzugsweise, längs der Erstreckung des Deckbandes im wesentlichen konstant ist. Hierdurch läßt sich bei einfacher Formgebung eine dennoch vorzügliche Funktionsfähigkeit erhalten.The thickness of the shroud is preferably chosen to be at least one and at most twice the thickness of the upper leg sections, again, preferably, being substantially constant along the extent of the shroud. In this way, an excellent functionality can be obtained with a simple shape.

Ganz besonders bevorzugt wird das erfindungsgemäße Fugendichtungsprofil mit einem zu seiner Profil-Mittellinie symmetrischen Profilquerschnitt versehen, wodurch eine besonders günstige Aufnahme auftretender Belastungen sichergestellt wird.The joint sealing profile according to the invention is very particularly preferably provided with a profile cross section which is symmetrical with respect to its profile center line, as a result of which particularly favorable absorption of occurring loads is ensured.

Die Größe der Stützflächen wird vorteilhafterweise so gewählt, daß - im Profilquerschnitt gesehen - die Gesamtfläche aller unter Belastung das Deckband von unten abstützender Stützflächen 40% bis 60%, vorzugsweise aber etwa die Hälfte der Fläche der Unterseite des Deckbandes beträgt.The size of the support surfaces is advantageously chosen so that - seen in profile cross-section - the total area of all support surfaces supporting the shroud from below is 40% to 60%, but preferably about half the area of the underside of the shroud.

Bevorzugt werden bei einem erfindungsgemäßen Fugendichtungsband auch am freien Ende der Seitenschenkel in Richtung der Hauptebene der Bauwerksteile abgewinkelte Laschen angeformt, längs derer dann die Einbindung in die Isolierung an den seitlichen Bauwerksteilen erfolgen kann, wodurch sich in Verbindung mit dem verdickten Seitenschenkelabschnitt eine besonders steife Ausbildung des Übergangs vom Seitenschenkelende zur Lasche ergibt und dadurch die unbewegliche Lage des aus verdicktem Seitenschenkelabschnitt und Lasche gebildeten Teilabschnitts des Gesamtprofiles relativ zum Schutzbeton gesichert wird, d.h. jegliches Ablösen der dort vorliegenden Seitenflächen von der anliegenden Schutzbetonschicht und jegliche Relativbewegung zwischen diesen Teilen ist vollständig vermieden.In a joint sealing tape according to the invention, angled tabs are also formed on the free end of the side legs in the direction of the main plane of the building parts, along which the integration into the insulation on the side building parts can then take place, which in connection with the thickened side leg section results in a particularly rigid design of the Transition from the side leg end to the tab results and thereby the immovable position of the partial section formed from the thickened side leg section and tab is secured relative to the protective concrete, ie Any detachment of the side surfaces there from the adjacent protective concrete layer and any relative movement between these parts is completely avoided.

Beim erfindungsgemäßen Fugendichtungsprofil wird bevorzugt der nach oben ragende Vorsprung jedes unteren Schenkelabschnitts schräg in Richtung auf die Profil-Mittellinie hin ansteigend ausgeführt, wodurch eine günstige Ableitung der aufgenommenen Kräfte in die verdickten seitlichen Schenkelabschnitte sichergestellt wird. Dabei wird bevorzugt der Vorsprung mit einer nach oben abnehmenden Dicke ausgeführt. Ganz besonders bevorzugt wird der nach oben ragende Vorsprung jedoch in einem seitlichen Abstand zum oberen Schenkelabschnitt versetzt angeordnet, so daß durch entsprechend geeignete Abstandswahl eine möglichst gleichmäßige Verteilung der Stützflächen unterhalb des oberen Deckbandes erreicht werden kann.In the joint sealing profile according to the invention, the upwardly projecting projection of each lower leg section is preferably designed to rise obliquely in the direction of the profile center line, thereby ensuring a favorable dissipation of the forces absorbed into the thickened lateral leg sections. In this case, the protrusion is preferably made with an increasing thickness. However, the upwardly projecting projection is very particularly preferably offset at a lateral distance from the upper leg section, so that the most suitable distribution of the support surfaces below the upper cover band can be achieved by a suitable choice of distance.

Eine weitere bevorzugte Ausgestaltung des erfindungsgemäßen Fugendichtungsprofiles besteht auch darin, daß der untere Schenkelabschnitt eine zu seinem freien Ende hin abnehmende Dicke aufweist. Für besondere Einsatzfälle kann es jedoch gleichermaßen wünschenswert sein, daß über die Länge des unteren Seitenabschnitts hinweg die Verdickung desselben im wesentlichen gleichbleibend ausgeführt ist.Another preferred embodiment of the joint sealing profile according to the invention also consists in the fact that the lower leg section has a thickness that decreases towards its free end. For special applications, however, it may be equally desirable that the thickening of the same be carried out substantially constant over the length of the lower side section.

Vorzugsweise wird an jedem Seitenschenkel oberhalb des Bereichs der Anschlußstelle zwischen unterem und oberem Schenkelabschnitt an letzterem eine Querschnittsverkleinerung in Form einer von der Außenseite des Seitenschenkels nach innen hin gerichteten, vorzugsweise gerundet ausgeführten Profileinbuchtung vorgesehen, um eine erleichterte Verschwenkbarkeit des jeweils oberen Seitenschenkelabschnitts (und damit auch des an diesem befestigten Deckbandes) relativ zu dem massiven, unbeweglichen, dicken, unteren Schenkelabschnitt zu ermöglichen.Preferably, on each side leg above the area of the connection point between the lower and upper leg section on the latter, a cross-sectional reduction in the form of a profile indentation, which is directed inward from the outside of the side leg and is preferably rounded, is provided in order to facilitate the pivoting of the respective upper side leg section (and thus also of the cover tape attached to this) relative to the massive, immovable, thick, lower leg section.

Um eine erleichterte Relativbewegung zwischen den sich auf den Stützflächen abstützenden Teilabschnitten des Deckbandes und den Stützflächen auch unter Last zu ermöglichen, empfiehlt es sich, die Oberseiten der Stützflächen und/oder die Unterseite des Deckbandes mit einer Auflage aus reibminderndem Belag, z.B. Polytetrafluorethylen (PTFE), zu versehen.In order to facilitate easier relative movement between the sections of the cover tape that are supported on the support surfaces and the support surfaces even under load, it is recommended that the upper sides of the support surfaces and / or the underside of the cover tape be covered with a friction-reducing coating, e.g. Polytetrafluoroethylene (PTFE).

Die Erfindung wird nachfolgend anhand der Zeichnung im Prinzip beispielshalber noch näher erläutert. Es zeigen:

  • Fig. 1 eine Prinzipdarstellung durch den Querschnitt eines erfindungsgemäßen Fugendichtungsprofils;
  • Fig. 2 einen Querschnitt durch eine andere Ausführungsform eines erfindungsgemäßen Fugenbandes;
  • Fig. 3 einen Querschnitt durch eine dritte Ausführungsform eines erfindungsgemäßen Fugenbandes;
  • Fig. 4 das in Fig. 3 gezeigte Fugendichtungshand in einer Lage, die einem Vertikalversatz der zu überbrückenden Bauwerksteile entspricht, sowie
  • Fig. 5 das Fugendichtungsband aus Fig. 1 in eingebautem Zustand.
The invention is explained in more detail below in principle by way of example with reference to the drawing. Show it:
  • Figure 1 is a schematic representation through the cross section of a joint sealing profile according to the invention.
  • 2 shows a cross section through another embodiment of a joint tape according to the invention;
  • 3 shows a cross section through a third embodiment of a joint tape according to the invention;
  • Fig. 4 shows the joint sealing hand shown in Fig. 3 in a position that a vertical offset of the bridging building parts corresponds, and
  • Fig. 5 shows the joint sealing tape from Fig. 1 in the installed state.

Bei den in den einzelnen Figuren dargestellten Querschnitten von Fugendichtungsbändern werden für gleiche oder einander entsprechende Teile jeweils auch gleiche Bezugszeichen verwendet.In the cross sections of joint sealing tapes shown in the individual figures, the same reference numerals are used for the same or corresponding parts.

Der Querschnitt der in allen Figuren dargestellten Fugendichtungsbänder weist einen oberen Mittelabschnitt 1 in Form eines Deckbandes auf, an dessen beiden seitlichen Enden jeweils Schenkel 2, 3 angebracht sind. Dabei besteht jeweils der Seitenschenkel 2 bzw. 3 aus zwei Schenkelabschnitten 4, 6 bzw. 5, 7. Die oberen Schenkelabschnitte 4, 5 sind relativ dünn ausgebildet, während die unteren Schenkelabschnitte 6, 7 eine massive Verdickung aufweisen, die in ihrer Form jedoch unterschiedlich ausgebildet sein kann. Bei allen in den Figuren gezeigten Profilquerschnitten weisen die verdickten Schenkelabschnitte 6, 7 jeweils einen nach oben schräg zur Profilmittellinie M-M (Fig. 1) hin aufragenden Vorsprung 8 bzw. 9 auf, wobei, wie aus den Figuren gut entnommen werden kann, dieser Vorsprung nach oben hin in den Bereich vorspringt, über den sich (in der Höhe) der seitliche obere Schenkelabschnitt 4 bzw. 5 erstreckt. Oben auf jedem Vorsprung 8, 9 ist in einem kleinen Abstand S von der Unterseite 1' des Deckbandes 1 jeweils eine Stützfläche 12, 13 ausgebildet, deren Ausrichtung (im unbelasteten Zustand des Fugenbandes) im wesentlichen parallel zur Ausrichtung der Unterseite 1' des Deckbandes 1 verläuft. Dabei ist, wie in Fig. 1 gezeigt, der Beginn der Stützfläche 12, 13 jeweils um einen Abstand A seitlich zum entsprechenden oberen Abschnitt 4, 5 des betreffenden Seitenschenkels 2, 3 versetzt, und jede Stützfläche 12, 13 erstreckt sich über eine Längserstreckung L, die bei den in den Fig. 1, 2 und 5 gezeigten Ausgestaltungen jeweils etwa einem Viertel der Gesamterstreckung der Unterseite des Deckbandes 1' entspricht.The cross section of the joint sealing tapes shown in all figures has an upper middle section 1 in the form of a cover tape, on the two lateral ends of which legs 2, 3 are attached. The side legs 2 and 3 each consist of two leg sections 4, 6 and 5, 7. The upper leg sections 4, 5 are made relatively thin, while the lower leg sections 6, 7 have a massive thickening, but different in shape can be trained. In all of the profile cross sections shown in the figures, the thickened leg sections 6, 7 each have a projection 8 and 9, which protrudes upwards obliquely towards the profile center line MM (FIG. 1), this projection, as can be seen well from the figures protrudes up into the area over which the lateral upper leg section 4 or 5 extends (in height). A support surface 12, 13 is formed at the top of each projection 8, 9 at a small distance S from the underside 1 'of the shroud 1, the alignment of which (in the unloaded state of the joint tape) is essentially parallel to the alignment of the underside 1' of the shroud 1 runs. 1, the start of the support surface 12, 13 is offset laterally by a distance A laterally from the corresponding upper section 4, 5 of the relevant side leg 2, 3, and each support surface 12, 13 extends over a longitudinal extension L. , which in the embodiments shown in FIGS. 1, 2 and 5 each corresponds to about a quarter of the total extent of the underside of the shroud 1 '.

Direkt oberhalb der Stelle, an denen die oberen Abschnitte 4, 5 und die unteren, dicken Schenkelabschnitte 6, 7 ineinanderlaufen, ist, noch im Bereich der oberen Schenkelabschnitte 4, 5, eine Querschnittsverengung vorgesehen und zwar in Form einer von der Seitenfläche des betreffenden Seitenschenkels 2, 3 nach innen hin gerichteten, kreisabschnittförmigen Ausbuchtung 10, wie sie in den Fig. 1, 2 und 5 gezeigt ist. Durch diese Querschnittsverengung, die in ihrem unteren Bereich auch ein wenig noch in den Bereich des unteren Schenkelabschnitts 6, 7 einlaufen kann, wird eine erleichterte Verschwenkung des jeweils oberen Schenkelabschnitts 4, 5 relativ zum unteren, starren, unbeweglichen verdickten Schenkelabschnitt 6, 7 ermöglicht, was zu einer verbesserten Beweglichkeit des aus dem oberen Deckband 1 sowie den beiden an diesem unmittelbar angeschlossenen oberen Schenkelabschnitten 4 und 5 bestehenden Profilabschnitts relativ zu den darunter angeordneten starren Blöcken 6 und 7 beiträgt.Directly above the point at which the upper sections 4, 5 and the lower, thick leg sections 6, 7 run into one another, in the area of the upper leg sections 4, 5, a cross-sectional constriction is provided, in the form of one from the side surface of the relevant side leg 2, 3 inward, circular segment-shaped bulge 10, as shown in FIGS. 1, 2 and 5. This cross-sectional constriction, which in its lower area can also run a little into the area of the lower leg section 6, 7, enables easier pivoting of the respective upper leg section 4, 5 relative to the lower, rigid, immovable thickened leg section 6, 7. which contributes to an improved mobility of the upper shroud 1 and the two upper leg sections 4 and 5 which are directly connected to it, relative to the rigid blocks 6 and 7 arranged underneath.

Die Dicke di, d2 der oberen Schenkelabschnitte 4 bzw. 5 ist bei der Darstellung nach den Fig. 1 und 2 etwa so groß wie die Dicke D des oberen Deckbandes 1.The thickness d i , d 2 of the upper leg sections 4 and 5 is approximately as large as the thickness D of the upper shroud 1 in the illustration according to FIGS. 1 and 2.

Die Darstellung nach Fig. 2 zeigt gegenüber der Profilform aus Fig. 1 die Anderung, daß die unterhalb der jeweiligen Stützfläche 12, 13 liegende Profilverdickung über die Höhe des jeweiligen unteren verdickten Schenkelabschnitts 6, 7 im wesentlichen gleich bleibt, während bei der Ausbildung nach Fig. 1 sich eine hier über die Höhe des unteren Schenkelabschnitts 6, 7 jeweils in Richtung zu dessem freien Ende hin verjüngende Querschnittsform ergibt.The illustration according to FIG. 2 shows, compared to the profile shape from FIG. 1, the change that the profile thickening below the respective support surface 12, 13 remains essentially the same over the height of the respective lower thickened leg section 6, 7, while in the embodiment according to FIG 1 there is a cross-sectional shape which tapers over the height of the lower leg section 6, 7 in each case in the direction of its free end.

Ferner ist jede Stützfläche 12, 13 durch einen kerbförmigen Einschnitt 26' in zwei Teilstützflächen 12', 12' bzw. 13', 13' unterteilt, die bei Auftreten entsprechender Belastungen um einen kleinen Winkel zueinander angestellt werden können, wodurch eine bessere Anpaßbarkeit an die Form der Gegenfläche l' möglich ist.Furthermore, each support surface 12, 13 is divided by a notch-shaped incision 26 'into two partial support surfaces 12', 12 'and 13', 13 ', which can be adjusted at a small angle to one another when corresponding loads occur, as a result of which better adaptability to the Shape of the counter surface l 'is possible.

Das in Fig. 1 gezeigte Fugendichtungsprofil ist in Fig. 5 in Einbaustellung zwischen zwei Brückenbauwerken dargestellt, zwischen denen eine Fuge der Breite W zu überbrücken ist. Dabei sind, wie Fig. 5 zeigt, die seitlich an den freien Enden der unteren Schenkelabschnitte in Richtung der Hauptebene der Bauwerksteile abgewinkelt angebrachten Laschen 11 auf der Oberseite der Bauwerksteile 20, 21 unter Zwischenschaltung von Dichtungsstreifen 22, 23 aufgesetzt und seitlich dann mit einer Beton- bzw. Bitumenschicht 18, 19, in der Bewehrungen 24, 25 angebracht sind, seitlich abgestützt.The joint sealing profile shown in FIG. 1 is shown in FIG. 5 in the installed position between two bridge structures, between which a joint of width W is to be bridged. As shown in FIG. 5, the tabs 11, which are angled laterally at the free ends of the lower leg sections in the direction of the main plane of the building parts, are placed on the top of the building parts 20, 21 with the interposition of sealing strips 22, 23 and then laterally with a concrete - or bitumen layer 18, 19, in which reinforcements 24, 25 are attached, supported laterally.

Das Fugendichtungsprofil, das in den Fig. 3 und 4 gezeigt ist, unterscheidet sich von dem Fugendichtungsprofil aus Fig. 1 dadurch, daß hier die Stützflächen 12, 13 nicht mehr eine durchgehend gemeinsame Ausrichtung aufweisen, sondern nur in ihrem ersten, dem betreffenden oberen Schenkelabschnitt 4, 5 zugewandten Anfangsteil längs einer Länge L zur Unterseite 1' des oberen Deckbandes 1 parallel ausgerichtet sind, woran sich, jeweils durch eine tiefe und schmale Kerbnut 26 getrennt, eine schräg um einen Winkel nach unten hin zur Mitte des Profilquerschnitts geneigte Anschlußfläche 14 bzw. 15 eine Länge L' (die etwa der Länge L der Stützfläche 12 bzw. 13 entspricht) anschließt. Hierdurch wird erreicht, daß im eingebauten Zustand der Profildichtung, wie in Fig. 4 gezeigt, bei Auftreten eines Vertikalversatzes h zwischen den beiden Bauwerksteilen die am höher liegenden Bauwerksteil angebrachten Stützflächen 12, 14 eine besonders gut angepaßte Abstützung auf der Unterseite des Deckbandes 1 abgeben.The joint sealing profile, which is shown in FIGS. 3 and 4, differs from the joint sealing profile from FIG. 1 in that the support surfaces 12, 13 no longer have a continuously common orientation, but only in their first, the relevant upper leg section 4, 5 facing initial part along a length L to the underside 1 'of the upper shroud 1 are aligned, which is separated by a deep and narrow notch groove 26, a connection surface 14 or inclined at an angle downwards towards the center of the profile cross section 15 a length L '(which corresponds approximately to the length L of the support surface 12 or 13). This ensures that in the installed state of the profile seal, as shown in Fig. 4, when a vertical offset h occurs between the two structural parts, the support surfaces 12, 14 attached to the higher structural part emit a particularly well-adapted support on the underside of the shroud 1.

Oben auf den Stützflächen 12, 13 sowie auf den Anschlußflächen 14, 15 (die ebenfalls Stützwirkung haben) ist jeweils eine Auflage 27 aus PTFE aufgebracht. Hierdurch wird im Falle einer Anlage des Deckbandes 1 unter Last (vgl. Fig. 4) die Reibung an den direkten Kontaktflächen herabgesetzt, so daß selbst dann noch Relativbewegungen zwischen Deckband und Stützflächen in Richtung parallel zu den Abstützflächen erleichtert werden.On top of the support surfaces 12, 13 and on the connection surfaces 14, 15 (which also have a supporting effect), a layer 27 of PTFE is applied. As a result, in the event of the cover strip 1 bearing under load (see FIG. 4), the friction on the direct contact surfaces is reduced, so that even then relative movements between the cover strip and the support surfaces in the direction parallel to the support surfaces are facilitated.

Die Profildichtungen selbst werden aus einem geeigneten elastomeren Kunststoff hergestellt, in bestimmten Einsatzfällen kann jedoch auch vulkanisierter Naturkautschuk hierfür verwendet werden (etwa für den Einsatz bei extrem kalten Temperaturen).The profile seals themselves are made from a suitable elastomeric plastic, but in certain applications vulcanized natural rubber can also be used (e.g. for use in extremely cold temperatures).

Claims (20)

1. Expansion joint profile made from an elastic material for sealing a joint between two structural parts, with an upper, through central portion (1), whose surface in the fitted state forms a covering surface located on the level of the surface of the structural parts, as well as with two side legs (2, 3) fitted to the longitudinal ends of the central portion (1), the engaging faces of the strucutral parts being constructed so as to adapt to the lateral faces of the profile legs (2, 3), characterized in that the central portion is constructed as a cover strip (1) springing out under load and a thickened part (6, 8; 7, 9) is fitted to each side leg (2, 3) and on said thickened part is formed an upper supporting surface (4) for engaging a portion of the underside (1') of the cover strip (1).
2. Expansion joint profile according to claim 1, characterized in that the supporting surface (12; 13) of each thickened part (6, 8; 7, 9) is spaced from the underside (1 of the cover strip (1) by a distance corresponding to a gap (S) closing under load during the springing out of the cover strip (1).
3. Expansion joint profile according to claims 1 or 2, characterized in that each side leg (2, 3) comprises two leg portions (4, 6; 5, 7), whereof the lower portion (6; 7) has the thickened part and whereof the upper portion (4; 5) is much thinner than the latter, the cover strip (1) interconnecting the two thinner leg portions (4; 5) and that each lower leg portion (6; 7) carries on its top a projection (8; 9) projecting up to the vertical extension area of the upper leg portion (4; 5) and which is much thicker than the upper leg portion (3; 4) and is provided at its upper end with the supporting surface (12; 13).
4. Expansion joint profile according to claim 3, characterized in that the upwardly projecting projection (8; 9) of each lower leg portion (6; 7) rises in inclined manner in the direction towards the profile axis (M-M).
5. Expansion joint profile according to claims 3 or 4, characterized in that the projection (8; 9) tapers upwards.
6. Expansion joint profile according to any one of the claims 3 to 5, characterized in that the upwardly projecting projection (8; 9) has a lateral spacing (A) with respect to the corresponding upper leg portion (3; 4).
7. Expansion joint profile according to anyone of the claims 3 to 6, characterized in that the lower leg portion (6; 7) has a cross-section tapering towards its free end.
8. Expansion joint profile according to anyone of the claims 3 to 7, characterized in that a cross- sectional reduction in the form of a preferably rounded profile recess (10) directed inwards from the outside of the side leg (2; 3) is provided on each side leg (2; 3) above the connection point between the lower (4; 6) and upper (5; 7) leg portion on the latter.
9. Expansion joint profile according to anyone of the claims 3 to 8, characterized in that the upper supporting surface (12; 13) of each (8; 9) has a length (L) corresponding to three to five times the thickness (d2) of the upper leg portion (4; 5).
10. Expansion joint profile according to any one of the claims 3 to 9, characterized in that on the top of each projection (8; 9) is formed a downwardly sloping connecting surface (14; 15) connected to the supporting surface (12; 13) in the direction of the profile axis (M-M).
11. Expansion joint profile according to claim 10, characterized in that the sloping connecting surface (14; 15) has a longitudinal extension (L'), which substantially corresponds to the longitudinal extension (L) of the supporting surface (12; 13).
12. Expansion joint profile according to claims 10 or 11, characterized in that the sloping connecting surface (14; 15) is downwardly inclined by an angle between 10° and 30° to the plane of the supporting surface (12; 13).
13. Expansion joint profile according to anyone of the claims 10 to 12, characterized in that the sloping connecting surface (14; 15) is separated from the associated supporting surface (12; 13) by means of a wedge-shaped groove (26).
14. Expansion joint profile according to anyone of the claims 3 to 13, characterized in that the thickness (D) of the cover strip (1) is at least once and at the most twice the thickness (d2) of the upper ieg portions (4; 5).
15. Expansion joint profile according to anyone of the claims 1 to 14, characterized in that the thickness (D) of the cover strip (1) along its extension is substantially constant.
16. Expansion joint profile according to anyone of the claims 1 to 15, characterized by a profile cross-section symmetrical to the profile axis (M-M).
17. Expansion joint profile according to anyone of the claims 1 to 16, characterized in that, considered in profile cross-section, the total area of all the supporting surfaces (12; 13; 14; 15) supporting the cover strip (1) under load is 40 to 60% and preferably half the area of the underside (1') of the cover strip (1).
18. Expansion joint profile according to anyone of the claims 1 to 17, characterized in that onto the ends of the side legs (2; 3) are shaped members (11) angled in the direction of the principal plane of the structural parts.
19. Expansion joint profile according to anyone of the claims 1 to 18, characterized in that the top of the supporting surfaces (12; 13) and/or the bottom (1') of the cover strip (1) is provided with a friction-reducing overlayer (27).
20. Expansion joint profile according to anyone of the claims 1 to 19, characterized in that each supporting surface (12; 13) is subdivided by wedge-shaped grooves (26') extending in the longitudinal direction of the expansion joint profile into a plurality of partial supporting surfaces (12'; 13').
EP88100192A 1987-04-13 1988-01-08 Expansion joint section made from an elastic plastic material Expired - Lifetime EP0286775B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100192T ATE56778T1 (en) 1987-04-13 1988-01-08 JOINT SEALING PROFILE MADE OF ELASTIC PLASTIC.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873712512 DE3712512A1 (en) 1987-04-13 1987-04-13 JOINT SEAL PROFILE MADE OF ELASTIC PLASTIC
DE3712512 1987-04-13

Publications (2)

Publication Number Publication Date
EP0286775A1 EP0286775A1 (en) 1988-10-19
EP0286775B1 true EP0286775B1 (en) 1990-09-19

Family

ID=6325541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100192A Expired - Lifetime EP0286775B1 (en) 1987-04-13 1988-01-08 Expansion joint section made from an elastic plastic material

Country Status (3)

Country Link
EP (1) EP0286775B1 (en)
AT (1) ATE56778T1 (en)
DE (2) DE3712512A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187871B (en) * 1963-07-02 1965-02-25 Weill & Reineke Sealing profile made of elastic material
DE2647839C3 (en) * 1976-10-22 1979-02-01 Stog, Arnulf, Ing.(Grad.), 8000 Muenchen Joint sealing profile made of plastic to close a joint
DE2952613B1 (en) * 1979-12-28 1981-01-08 Kober Ag Connection profile strips, in particular on devices for bridging expansion joints in bridges or the like. Buildings

Also Published As

Publication number Publication date
DE3712512C2 (en) 1991-04-04
ATE56778T1 (en) 1990-10-15
EP0286775A1 (en) 1988-10-19
DE3860629D1 (en) 1990-10-25
DE3712512A1 (en) 1988-11-03

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