EP0001046B1 - Dispositif pour étancher des joints entre des éléments de construction, de préférence entre des éléments de cuvelage en béton armé - Google Patents

Dispositif pour étancher des joints entre des éléments de construction, de préférence entre des éléments de cuvelage en béton armé Download PDF

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Publication number
EP0001046B1
EP0001046B1 EP78100582A EP78100582A EP0001046B1 EP 0001046 B1 EP0001046 B1 EP 0001046B1 EP 78100582 A EP78100582 A EP 78100582A EP 78100582 A EP78100582 A EP 78100582A EP 0001046 B1 EP0001046 B1 EP 0001046B1
Authority
EP
European Patent Office
Prior art keywords
groove
strip
pressure transmitting
jointing
tape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP78100582A
Other languages
German (de)
English (en)
Other versions
EP0001046A1 (fr
Inventor
Aloys Dipl.-Ing. Schlütter
Knut Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAG AG
Original Assignee
Ruhrkohle AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruhrkohle AG filed Critical Ruhrkohle AG
Publication of EP0001046A1 publication Critical patent/EP0001046A1/fr
Application granted granted Critical
Publication of EP0001046B1 publication Critical patent/EP0001046B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/385—Sealing means positioned between adjacent lining members
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/16—Sealings or joints

Definitions

  • the invention relates to an arrangement for sealing components in building construction and civil engineering, preferably for reinforced concrete segments of the mining industry, the joint to be sealed being formed by a flat surface and a surface with a preferably rectangular or trapezoidal groove in cross section, into which a viscoelastic joint tape is inserted is, which lies with its side flanks on the groove flanks and interacts with a viscoelastic pressure transmission tape, the joint tape and the pressure transmission tape being supported on one another.
  • the prior art includes a proposal (DE-A 25 42 912) for a contact surface seal in which only a one-piece joint tape is realized, the underside of which is assigned to the bottom surface of the groove and whose thickness increases from the center to the edges. wherein the curvature in the middle of the joint tape corresponds approximately to a protrusion of the joint tape beyond the edge of the groove.
  • the tape is first pressed onto the bottom of the groove and then further compressed in the manner of a bending spring body by contact pressure. Due to the shape of the joint tape, the compressive forces only make up about 2.8 times the force required to press the joint tape.
  • Such a joint tape can be significantly improved by using certain materials.
  • Such a material has a high (at 0.50) transverse contraction number. For this reason, high contact pressures in the bearing areas of the groove base produce high lateral strains transversely to the direction of compression, which result.
  • Tilting of the segments can only have a minor impact after transfer from the continuous to the beam-like support, because they only slightly reduce the sealing pressure in the area of one groove edge compared to that on the other groove edge.
  • the remaining press-in pressures are relatively large because they cannot be distributed evenly over the entire length of the strip, but are centered in the area of the edge lines.
  • a high degree of fitting accuracy is required of the joint tape and the groove, which results from the requirement for uniform sealing in several places. In practice, however, this creates considerable difficulties in shaping the grooves and in complying with the tolerances on the joint tape.
  • the invention has for its object to carry out the transfer of the contact pressure for better sealing against pressurized water by means of separate construction elements, in order to meet high demands and in particular make no great demands on the accuracy of fit.
  • this object is achieved in that the joint tape is corrugated in cross section and wider in the development than the groove and that the pressure transmission tape is fitted into each of these, leaving a gap between its side flanks and the side flanks of the groove.
  • the invention has the advantage that the proposed combination of joint tape and pressure transfer tape is technically simple and does not make high demands on the accuracy of fit.
  • the two strips can be produced from extruded broad strips which are subsequently machine-cut be put.
  • the use of different or appropriately modified materials can already take into account the expediency of making the joint tape comparatively elastic and the pressure transmission tape comparatively stiff.
  • the joint tape which is at least approximately rectangular in cross-section in the development, is curved in the manner of a cosine wave with respect to the center of the groove, and in that the cross-section, which is thicker and rectangular in cross section having pressure transmission tape is glued to the apex area of the cosine wave with the joint tape.
  • the procedure can be such that the sealing joint tape is first inserted into the groove alone, with the cosine wave touching the floor on the side walls of the groove.
  • the side seals of the compressed joint tape which ensure the sealing of the groove, act close to the floor and are therefore tension-friendly for the application in reinforced concrete segments.
  • the subsequently installed pressure transmission tape is also inserted into the groove after the two tapes in the contact area have been coated with a special adhesive.
  • the ratios are chosen such that the total height of the joint tape and pressure transmission tape measured orthogonal to the bottom surface of the groove is equal to the groove height in the compressed state and that after assembly and before compression the total height is equal to the sum of the Is four times the amplitude of the cosine wave and twice the thickness of the joint tape.
  • the compression of the joint tape begins when the segments are pressed together at the membrane apex and proceeds monotonously from there to the side flanks of the groove.
  • the pressure transmission belt is only subjected to slight bending and, in the main, compression.
  • a bending stress and a compressive stress state are triggered in the joint tape when compressed to the stretched position.
  • the latter stems from the fact that the shaft formed by the band, provided the side flanks of the groove are pale, would experience an extension corresponding to the development of its arc length, which is prevented by di abutment pressures which are lined from the side walls.
  • the same clearance height is available everywhere between the bottom surface of the groove and the pressure transfer tape, partly above and partly below the joint tape, so that the latter tape and only slightly the pressure transfer tape have to be compressed.
  • a circumferential groove 2 is provided in the end faces of a reinforced concrete segment generally denoted by 1.
  • the groove has a flat bottom surface 3 and, according to the exemplary embodiment shown in FIG. 1, flat side flanks 4 and 5, so that there is a generally rectangular cross section for the groove.
  • a joint tape 7 is used, the cross-section in the development is approximately rectangular. In relation to the center of the groove 2 shown at y, the joint tape is curved in the manner of a cosine wave. The amplitude has the height f. In cross section, the joint tape represents a corrugated sheet lying on the floor 3. That is why its lower edge lies at the apex by a dimension 2 f above the floor 3.
  • a pressure transmission belt 8 lies snugly on the joint belt 7. Therefore, its lower edge 9 is 2 f above the compressed joint tape. It must therefore engage in the groove 2 (dimension h) and protrude beyond it by the dimension 2 f. Under these circumstances, the pressure transfer belt 8 disappears completely in the groove 2 when compressed. Consequently, its thickness is h + 2 f.
  • the entire sealing body has 4 f + 2 h in the assembled state and 2 f + 2 h in the compressed state.
  • the latter dimension corresponds to the depth of the groove.
  • the sealing joint tape 7 is first inserted into the groove 2 by itself. This is done so that the cosine wave of the underside 12 of the joint tape 7 on the side walls 4 touches the floor as shown at 15 and 16. In this way, the side flaps of the compressed joint tape, which provide the sealing effect, act close to the floor and are therefore tension-friendly for reinforced concrete tubbing 1. Then the pressure transfer belt 8, which is rectangular in cross section, is inserted into the groove. Before that, the two tapes in the contact area at 17 were coated with a special adhesive and glued. This connection between the two bands 7 and 8, shown at 17, provides an assembly aid.
  • the pressure transmission belt 8 should be at least 1 mm narrower than the groove.
  • the pressure transmission tape has a thickness (h + f) of 22 mm, which corresponds exactly to the gas total height of the joint tape before installation.
  • the pressure transfer belt is therefore flush with the joint surface when the seal has been compressed by 6 mm. This corresponds to a requirement from the segment manufacturers.
  • the pressure transfer tape connects, leaving the two gaps S appearing on the side flanks 4 and 5. Without this gap, the transverse expansion of the pressure transmission belt in the compressed state would result in very high compressive stresses in the pressure transmission belt, because in the compressed state a transverse expansion transverse to the y direction is triggered.
  • a gap of 0.7 mm is generally sufficient.
  • the bond can be limited to a width of about 5 mm.
  • the groove 2 has a trapezoidal cross section with flanks 20 and 21 diverging from the inside to the outside.
  • the joint tape 7 is curved in a double sinusoidal manner with respect to the center 23 of the groove 2, the two maxima 24 and 25 being symmetrical with respect to one another the center line 23 are arranged.
  • the joint tape At the ends 26 and 27, the joint tape in turn rests on the two edge regions 28 and 29 between the side flanks and the bottom surface of the groove.
  • the pressure transmission tape 8 is installed, which is left in place with the gap shown at 30 and 31 between its side flanks 32 and the side flanks 20 and 21 of the groove 2.
  • the top of the pressure transmission belt is provided with a laminated metal sheet 33.
  • the compressed state shown in FIG. 3 essentially corresponds to what has been shown and described in connection with FIG. 1.
  • the invention is not restricted to the groove seals of tubbings, which are shown in FIGS. 1-3. In general, it is applicable to design cases in which one structural element has to be sealed against another or entire structures against a floor slab or a foundation. Also, the design of the groove does not play a decisive role with regard to the outline of the structure. H. rectangular floor plans are not a requirement. Circular and differently curved floor plans can also be mastered.
  • the supernatants will generally be larger than those at Tübbingen.
  • FIGS. 4 and 5 are concerned is a circular clean water tank, the tank shell is designated 40.
  • a roof shell 41 is supported on the upper side of the container shell 40 and, apart from wind forces, should not exert any horizontal thrusts on the container shell 40. This requirement arises from the fact that the pure water tank should only be subjected to loads from the water pressure in the radial direction. On the other hand, it requires that the support of the roof shell 41 is radially movable and the sealing arrangement, which is generally designated 42, only slightly impedes a relative movement between the container shell 40 and the roof shell 41.
  • Fig. 4 shows how a non-positive connection between the pressure transmission belt 8 and the roof shell concrete is made.
  • a steel sheet 43 is laminated onto the pressure transmission belt 8. Therefore, the concrete of the roof shell 41 remains stuck to the steel sheet 43 after hardening, whereby the transmission of wind forces of the roof shell 41 onto the container shell 40 is ensured by the pressure transmission belt 8.
  • the space on both sides of the protrusion 44 of the pressure transmission belt 8 is designed with stucco plates made of foamed plastic (styrofoam), which is shown at 45 and 46.
  • stucco plates made of foamed plastic (styrofoam), which is shown at 45 and 46.
  • the formwork for the roof shell 41 is supported as usual on the container base, which is not shown.
  • the proportion by weight of the liquid concrete which is present on the plates 45 and 46 and the pressure transmission belt 8 is so small that the compression occurring under it can be neglected.
  • the protrusion of the pressure transmission belt 8 and thus also the initial thickness of the layer formed from the plates 45 and 46 is, for example, 36 mm.
  • the height of the plates 45, 46 and the pressure transmission belt 7 is reduced at least to the same extent; rather, the reduction becomes somewhat larger, since the pressure transfer belt 7 also experiences a slight compression.
  • the roof shell 41 Under the influence of the shrinkage of the concrete and temperature changes, the roof shell 41 will perform relative movements with respect to the container shell 40, the size of which depends on the dimensions of the roof shell 41. For example, these relative movements can be 1 mm towards the outside and 2 mm towards the inside (shrinkage reduction). These dimensions correspond to the gaps provided between the groove wall and the pressure transmission belt, which are shown in FIG. 4 at 48 and 49.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Building Environments (AREA)

Claims (5)

1. Dispositif d'étanchéification d'éléments préfabriqués dans une construction in hauteur et dans une construction en profondeur, de préférence pour des panneaux de cuvelage en béton armé d'une exploitation minière, dans lequel le joint à étanchéifier est formé par une face plane et par une face présentant une rainure dans laquelle est insérée und bande d'étanchéité visco-élastique (7) qui s'appuie avec ses flancs latéraux sur les flancs de la rainure et coopère avec une bande de transmission de pression visco-élastique (8), la bande d'étanchéité (7) et la bande de transmission de pression (8) étant appuyées l'une sur l'autre, caractérisé en ce que la bande d'étanchéité (7) est ondulée en section transversale et, à l'état développé, plus large que la rainure (2) et en ce que la bande de transmission de pression (8) est encastrée dans la rainure (2), en laissant chaque fois une fente (S) entre ses flancs latéraux (17, 18, 31, 32) et les flancs latéraux (4, 5, 20, 21) de la rainure (2).
2. Dispositif suivant la revendication 1, caractérisé en ce que la bande d'étanchéité (7) est disposée, par rapport au centre (y, 23) de la rainure (2), le long d'une onde de type cosinus et en ce que la bande de transmission de pression (8), qui présente en section transversale un contour plus épais ainsi que rectangulaire, est collé à la bande d'étanchéité (17) sur la zone de sommet (17) de l'onde de type consinus.
3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que la hauteur totale, mesurée orthogonalement par rapport à la surface de fond (3), de la bande d'étanchéité (7) et de la bande de transmission de pression (8), est, à l'état comprimé, égale à la hauteur de rainure et en ce que, après la réalisation du montage et avant la compression, la hauteur totale est égale à la somme de quatre fois la hauteur d'amplitude (f) de l'onde de type cosinus et de deux fois l'épaisseur (h) de la bande d'étanchéité (7).
4. Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce que plusieurs ondes sont prévues dans la bande d'étanchéité (7), les minima et les maxima des ondes étant agencés de manière symétrique par rapport au centre de la rainure (y, 23).
5. Dispositif suivant l'une quelconque des revendications 1 à 4, caractérisé par un placage en tôle d'acier (33, 34) agencé sur la face supérieure de la bande de transmission de pression (8).
EP78100582A 1977-09-03 1978-08-03 Dispositif pour étancher des joints entre des éléments de construction, de préférence entre des éléments de cuvelage en béton armé Expired EP0001046B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772739758 DE2739758A1 (de) 1977-09-03 1977-09-03 Anordnung zur abdichtung von mit nuten versehenen fugen zwischen ausbauteilen, vorzugsweise zwischen stahlbetontuebbingen
DE2739758 1977-09-03

Publications (2)

Publication Number Publication Date
EP0001046A1 EP0001046A1 (fr) 1979-03-21
EP0001046B1 true EP0001046B1 (fr) 1981-01-07

Family

ID=6018044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100582A Expired EP0001046B1 (fr) 1977-09-03 1978-08-03 Dispositif pour étancher des joints entre des éléments de construction, de préférence entre des éléments de cuvelage en béton armé

Country Status (2)

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EP (1) EP0001046B1 (fr)
DE (2) DE2739758A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394563A (de) * 1961-05-30 1965-06-30 Ott Adolf Fugendichtung zwischen Bau-Elementen
NL6600355A (fr) * 1966-01-12 1967-07-13
US3383863A (en) * 1966-08-03 1968-05-21 Joe R. Berry Pond, tank and pit liner and method of detecting leaks
FR1552195A (fr) * 1967-11-22 1969-01-03
DE2513365C3 (de) * 1975-03-26 1982-09-30 Ruhrkohle Ag, 4300 Essen Anordnung zur Abdichtung der Fugen von Stahlbetontübbingausbau
DE2542912C3 (de) * 1975-09-26 1982-08-19 Ruhrkohle Ag, 4300 Essen Fugenband, insbesondere zur Abdichtung von Stahlbetontübbings

Also Published As

Publication number Publication date
DE2739758A1 (de) 1979-03-22
DE2860417D1 (en) 1981-02-26
EP0001046A1 (fr) 1979-03-21

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