EP4230816A1 - Device for displacing sealing strips between floor wall, wall, wall ceiling and concrete ceiling wall components - Google Patents

Abstract

The device for installing joint sealing strips (19) which are used between floor-ceiling and wall sections made of concrete and which serve to allow water to pass through the joint between the surface of a floor or wall panel and the wall built up on it. A joint tape holding basket (21) is proposed, which consists of a plurality of essentially M-shaped support elements (23, 123) arranged next to one another and which are connected to one another by connecting rods (25) running along the support elements (23, 123). The joint sealing tape (19) can be inserted from above into the joint tape holder (21) before the floor slab is concreted.

Description

The invention relates to a device for moving joint sealing strips between floor-wall, wall-wall, wall-ceiling and ceiling-wall components made of concrete according to the preamble of patent claim 1.

Structures that are completely or partially embedded in the ground, such as basement rooms or underground car parks in residential and commercial buildings, must be protected against the ingress of water through the floors and walls arranged in the ground. The connection between a floor slab or ceiling and a wall placed on top of it after the floor slab or ceiling slab has been created, which is completely or partially immersed in the ground, is most at risk. The substructures created one after the other often have poor connections between floor-wall, wall-wall, wall-ceiling and ceiling-wall, which result, for example, from careless compaction of the liquid concrete mass during the creation of the substructures, so that air pockets remain in the connection area and penetration is prevented of water between floor and wall into the interior of the building.

It is known from the prior art to insert a sealing element in the form of a vertical metal sheet with a bituminous or special swelling coating or a vertically arranged joint sealing strip made of rubber or plastic in the transition area from the surface of the floor slab to the lower edge of the wall. Inserting or moving the sheet metal or the joint sealing tape, which must be vertical, is complicated, error-prone and does not guarantee that the tapes are vertical after the first substructure has been cast. The correct position of the hinges can no longer be checked afterwards. In particular, sealing tapes made of plastic do not run in one plane, since they are delivered wound up on a spool and this gives them a curvature that can lead to a wavy shape when moving on straight walls and bend after the second substructure has been concreted. Bands with a length of the extent of the wall to be built are therefore very expensive and difficult to handle, since they must be loosely attached to the connection reinforcements, which are arranged to run vertically upwards from the floor slab, before the floor slab is built. They are often drilled through and attached to the starter bars with wires and wood to keep them from snapping or bending during the pouring process. Will the Joint sealing tapes only attached when the floor slab has been created, but the concrete has not yet hardened, this in turn results in complicated operations to introduce the joint sealing tapes into the concrete mass, which is still soft before the concrete begins to harden. When casting the second substructure, these can buckle again and thus no longer provide a seal. The same problem arises with the waterstops. There is currently no safe way to secure these in the middle of the wall and vertically.

An object of the present invention is therefore to provide a device that allows the displacement of joint sealing strips or metal waterstops before the construction of the floor or ceiling panels with little effort and guarantees vertical standing and the arrangement of the center of the wall.

A further task is that it can be ensured that the joint tape remains in this predetermined position, i.e. perpendicular to the ceiling or floor slab and partially engaging in it, even after the liquid concrete has been poured into the floor slab, ceiling and later the wall or ceiling Partial structures comes to stand or remains there without the risk of buckling or bending of the part standing vertically out of the concrete. A further object of the invention is to make the device usable both for flexible joint sealing strips and for those made of sheet metal.

This object is achieved by a device according to the features of patent claim 1. Advantageous configurations of the device are described in the dependent claims.

An elongated joint tape holder basket, which is preferably prefabricated from several sections, can be placed on the reinforcement of the floor or ceiling panel or in the wall. A part that protrudes beyond the bottom of the cage and forms the receiving area for the joint tape enables precise positioning on a rebar laid lengthwise. The joint tape storage basket can be fastened with iron ties, for example. The joint sealing strip or sheet metal strip can then be easily and quickly inserted in the exact desired position by a single person. It is not displaced from its predetermined position while the liquid concrete is being poured.

The joint sealing tape or sheet is held laterally by the basket walls and it is enclosed on both sides by the liquid concrete. Any air influences that may be present can be released during the vibration of the concrete without the belt being able to move out of its specified position, neither laterally nor upwards.

The vertical expansion of the part projecting downwards over the joint tape holder enables the joint tape to penetrate deeply and precisely into the first part of the building (floor slab, ceiling or wall).

The basket-shaped device can also be produced from a different material in a cost-effective manner by means of steel rods, expanded metal, perforated metal sheets, nets or the like which are welded to one another or otherwise connected. The individual baskets, which can be lined up end to end, are easy to carry and move by the construction worker without the help of a crane.

By inserting inserts made of plastic with narrow parallel or slightly acute-angled incisions, relatively thin metal sheets with little inherent stability can be used to separate the joints with the same basket without having to adjust its width, without having to adjust its width.

In a further embodiment of the device, instead of the support elements made of wire for the construction of a joint tape holding basket, those made of plastic, which are U-shaped are trained. Incisions or holes are formed on their inner and/or outer surfaces, into which connecting rods can be inserted to connect the individual carrier elements made of plastic.

Figur 1

einen Teilquerschnitt durch eine Boden- oder Deckenplatte mit aufgesetzter Wandschalung und Wandarmierung ohne Fugenabdichtungsband,

Figur 2

einen Teilquerschnitt durch eine Boden- oder Deckenplatte mit aufgesetzter Wandschalung und Wandarmierung mit einem Fugenabdichtungsband, eingelegt in einem Fugenband-Aufnahmekorb,

Figur 3

einen Vertikalschnitt durch einen Fugenband-Aufnahmekorb,

Figur 4

einen Vertikalschnitt durch einen Fugenband-Aufnahmekorb mit eingesetztem Fugenabdichtungsband,

Figur 5

eine perspektivische Darstellung eines Fugenband-Aufnahmekorbs und

Figur 6

eine perspektivische Darstellung eines Fugenband-Aufnahmekorbs mit eingesetztem Fugenband,

Figur 7

einen Teilquerschnitt durch eine weitere Boden- oder Deckenplatte mit aufgesetzter Wandschalung und Wandarmierung mit einem Fugenband-Aufnahmekorb mit Halteelementen aus Kunststoff und einem darin eingesetzten Fugenabdichtungsband,

Figur 8

eine perspektivische Darstellung der Vorrichtung gemäss Figur 7,

Figur 9

eine vergrösserte Darstellung der Halteelemente aus Kunststoff, eingesetzt im Fugenband-Trägerkörper aus Draht,

Figur 10

eine perspektivische Darstellung des aus Kunststoff hergestellten Halteelements,

Figur 11

einen Teilquerschnitt durch eine Boden- und Deckplatte mit einem weiteren Fugenband-Trägerkörper aus Kunststoff,

Figur 12

eine vergrösserte Darstellung des Fugenband-Trägerkörpers ausgesteckt auf Verbindungsstangen,

Figur 13

eine perspektivische Darstellung des Fugen-Trägerkörpers gemäss Figur 12,

Figur 14

eine perspektivische Darstellung eines Fugenband- Aufnahmekorbs mit Trägerkörpern gemäss Figuren 12 und 13

Figur 15

eine perspektivische Darstellung eines Trägerelements für einen Fugenband-Aufnahmekorbs mit einem tief liegenden Aufnahmebereich für das Fugenband und mit einem seitlichen Trag- und Befestigungselement,

Figur 15a

eine perspektivische Darstellung eines Fugenband-Aufnahmekorbs aus Trägerelementen gemäss Figur 15,

Figur 16

einen Vertikalschnitt durch die Armierung einer Bodenplatte mit eingesetztem Fugenband-Aufnahmekorb gemäss Fig. 15a, befestigt an oben liegenden Armierungselementen,

Figur 17

einen Vertikalschnitt durch eine Deckenplatte mit in die darunter liegende Wand eingreifendem Aufnahmebereich für das Fugenabdichtungsband, wobei der Fugenband-Aufnahmekorb an den unten liegenden Armierungseisen befestigt ist und

Figur 18

einen Vertikalschnitt durch eine Deckenplatte mit darin angeordnetem Fugenband-Aufnahmekorb, der an der Armierung in der Krone der darunter liegenden Wand befestigt ist und die Abdichtung zwischen der Krone und der Deckenunterseite dient.

The invention is explained in more detail on the basis of illustrated exemplary embodiments. Show it:

figure 1

a partial cross-section through a floor or ceiling slab with attached wall formwork and wall reinforcement without joint sealing tape,

figure 2

a partial cross-section through a floor or ceiling slab with attached wall formwork and wall reinforcement with a joint sealing tape, inserted in a joint tape holder,

figure 3

a vertical section through a joint tape holder basket,

figure 4

a vertical section through a joint tape holding basket with inserted joint sealing tape,

figure 5

a perspective view of a joint tape storage basket and

figure 6

a perspective view of a joint tape holder basket with inserted joint tape,

figure 7

a partial cross-section through another floor or ceiling slab with attached wall formwork and wall reinforcement with a joint tape holding basket with holding elements made of plastic and a joint sealing tape inserted therein,

figure 8

a perspective view of the device according to figure 7 ,

figure 9

an enlarged view of the plastic retaining elements used in the water bar carrier body made of wire,

figure 10

a perspective view of the holding element made of plastic,

figure 11

a partial cross-section through a floor and cover plate with another joint tape carrier body made of plastic,

figure 12

an enlarged representation of the joint tape carrier body unplugged on connecting rods,

figure 13

according to a perspective view of the joint carrier body figure 12 ,

figure 14

according to a perspective view of a joint tape storage basket with carrier bodies Figures 12 and 13

figure 15

a perspective view of a support element for a joint tape storage basket with a low-lying Receiving area for the joint tape and with a lateral support and fastening element,

Figure 15a

according to a perspective view of a joint tape receiving basket made of support elements figure 15 ,

figure 16

according to a vertical section through the reinforcement of a floor slab with inserted joint tape holder Figure 15a , attached to overhead reinforcement elements,

figure 17

a vertical section through a ceiling panel with engaging in the underlying wall receiving area for the joint sealing tape, wherein the joint tape receiving basket is attached to the underlying reinforcement iron and

figure 18

a vertical section through a ceiling slab with a joint tape storage basket arranged therein, which is attached to the reinforcement in the crown of the wall below and serves to seal between the crown and the underside of the ceiling.

In figure 1 , which shows the transition from a floor or ceiling panel 1 to a wall 3 to be built on this, is the floor/ceiling panel 1 to be cast later already drawn in, with a front formwork 5 being visible. The wall 3 to be cast after the floor/ceiling panel has hardened is also shown in the drawing. In the section of the floor/ceiling slab 1, at least a part of the longitudinal reinforcement and reinforcing rods 7 and the transverse reinforcing rods 9, which are essentially at right angles to one another, are shown. Two vertical connecting irons 11 and 13 are also shown, which are L-shaped and connected to the reinforcing irons 7 and 9 in the floor/ceiling plate 1 and protrude vertically beyond the surface 15 of the floor/ceiling plate 1 . The connection irons 11,13 are used to create an optimal non-positive and positive connection between the two substructures floor or ceiling with the wall. Consequently, the connection irons 11, 13 already project beyond the finished floor/ceiling slab 1 at the point in time before the wall 3 is created.

The construction of the wall 3 can only be tackled after the floor/ceiling panel 1 has at least partially cured. In particular, the reinforcement and the formwork for the wall 3 are then created for the time being. After pouring the liquid concrete between the reinforcement and the formwork (not shown) for the wall, a connection is made between the surface 15 of the floor/ceiling slab and the wall under construction. The connection area is therefore at an im Essentially already hardened surface 15 and the liquid concrete. In the worst case, nests with air pockets can form in this area if all air pockets are not optimally removed with a vibrator. Even a non-optimal connection of the two concreting stages or the slightest cavities between the surface 15 of the floor and the lower area of the wall 3 allow water to enter and pass through from outside the building into the interior. This connection area can only be reliably interrupted by a joint sealing strip 19 . Around the joint sealing tape 19 (see figure 2 ) To be able to use exactly essentially in the middle of the thickness of the wall, a joint tape holder 21, which extends along the entire wall 3, is placed on the reinforcing bars 7.9 of the base plate 1 and connected to them. The placement of the joint tape holder 21 takes place at the time before the floor/ceiling plate 1 is poured, ie preferably together with or after the laying of the reinforcing rods 7.9 for the floor or the ceiling. The downwardly protruding part 23c of the basket allows the storage basket to be placed without displacement on a longitudinally running reinforcing iron 7 and to be fastened there with iron ties.

The joint tape recording basket 21, as in the Figures 5 and 6 shown in perspective includes a plurality of substantially M-shaped, vertical support elements 23, preferably made of steel wire (see 3 and 4 ). The carrier elements 23 are connected to one another at mutual distances by connecting rods 25 which run essentially horizontally. The two central legs 23a of the support elements 23 preferably run parallel or in a slightly V-shape and form an incision 33 open at the top. The connecting rods 25 are preferably attached to the outside of the central support elements 23a. This means that the joint sealing strips 19 can be pushed in from above along the central support elements 23a without any obstacles. The carrier elements 23b lying on the outside can likewise be arranged running parallel to one another or spread slightly downwards. In order to be able to place the joint tape holder basket 21 on the upper reinforcement of the floor/ceiling panel, connecting rods 25 are preferably also arranged in the area of the lower ends of the external support elements 23b. The lower ends 23c, which protrude beyond the connecting rods 25, are used to latch onto a longitudinally extending reinforcing bar and thus to obtain a stable position for fastening with iron ties when standing up.

In a further embodiment of the support elements 23, the ends of the support elements 23b lying on the outside which are on the bottom can be angled essentially horizontally outwards. The bent areas 23d are in figure 4 shown in dashed lines. They can be used to place the carrier elements 23 on the reinforcing iron 7.9 in the floor/ceiling plate and to fasten them there with iron ties. The detailed description of this embodiment follows the description of the Figures 15-18 .

In figure 3 no joint sealing tape 19 is used; in figure 4 this is inserted and is carried at the bottom by the connecting arc of the two outer carrier elements 23a and is prevented from deflecting sideways on both sides by the carrier element 23a. to In the Figures 5 and 6 the carrier elements 23 and the connecting rods 25 can be seen in a perspective view assembled in a joint tape holding basket 21 . Preferably, each section of storage baskets 21 is produced up to several meters in length. The individual sections should preferably have only one mass so that they can be carried by a construction worker and laid on top of the soil reinforcement. Preferably, the individual sections are attached to the floor reinforcement 7.9 with iron ties. The lined up joint tape receiving baskets 21 can connected to the M-shaped, vertical support elements 23 at the ends with iron trusses and additionally prevent them from slipping against each other lengthwise.

After moving the joint tape receiving baskets 19, the joint sealing tape 19 unwound directly from a coil can be inserted from above between the two inner support elements 23a without any effort. It is not necessary to attach the joint sealing tape 19 to the joint tape holder 21 . The upper arches 23e on the M-shaped, vertical supporting elements 23 can be connected to one another with iron ties, as a result of which an even more secure positioning in the vertical of the joint sealing strips 19 or waterstops is achieved and the strip is prevented from floating.

The curved upper connecting areas 23e between the inner support elements 23a and the outer support elements 23b allow the lower edge of the joint sealing strip 19 to be pushed into the joint sealing basket without snagging. In addition, the upper arches 23e protect the construction worker from injury when moving the joint sealing strips 19.

The snag-free and simple insertion of the joint sealing strips 19 between the two central support elements 23a also makes it possible To use joint sealing tapes 19 that do not require any vertical stiffening elements molded into or applied to them. As a result, both costs are saved and, in addition, the weight of the strips can also be reduced due to the lighter design of the joint sealing strips 19 . With these measures, ie cost savings on the joint tape 19, part of the additional costs for the joint tape holder basket 21 can be compensated. In addition, the time required for inserting the joint sealing strip 19 is significantly less and personnel costs can also be reduced as a result. The insertion of the joint sealing strips 19 can also be carried out safely by untrained unskilled workers, which means that further costs can be saved.

In a further embodiment of the joint tape holding basket 21, the two support elements 23a extend further down beyond the outer holding elements 23b and thus form a holding basket that is higher in the vertical dimension. This makes it possible to lay the joint sealing tape 19 further down and thereby engage deeper in the floor or ceiling panel 1. The deeper engagement of the lower area of the joint sealing strip 9 in the floor or ceiling panel 1 increases the labyrinth effect of the joint sealing strip 19 very significantly ( figures 15 and 15a ). The connection of the waterstop storage basket 21 in the The embodiment described above, on the reinforcement for the floor or ceiling panel 1, is carried out as in figure 16 shown. The end regions 23d, which protrude laterally essentially horizontally from the central carrier element 23a, are placed on the reinforcing rods 7 located above (third or fourth reinforcement layer, figure 16 ) attached to the floor or ceiling panel 1 with iron ties. An additional connection between the support elements 23 and the reinforcement can, as in figure 17 shown, on horizontally extending reinforcing rods in the wall 3, take place.

Preferably, when using the above-described waterstop holder baskets 21, which are extended downwards, the reinforcement or the reinforcing bars 7 for the floor or ceiling panel 1 are shortened, i.e. they end at a greater distance from the front formwork ( figure 16 and figure 17 ).

In a further embodiment of the arrangement of the joint tape receiving basket 21, according to figure 18 , finds a joint tape receiving basket 21 according to the Figures 1 to 8 within the reinforcement for the wall 3 instead. The joint tape holder 21 is then connected exclusively to horizontally running reinforcing bars for the wall reinforcement. In this way it can be achieved that the joint sealing tape 19 half comes to lie in the crown of the wall 3 and half engages from below in the floor or ceiling panel 1 and the wall-wall connection ( figure 18 ). The insertion of the joint sealing tape 19 in the joint tape holder basket 21 attached to the reinforcement for the wall therefore takes place before the wall 3 is poured.

In a further embodiment of the device, in particular for joint sealing strips 19 made of steel in the form of sheet metal strips or plastic strips 29 of small thickness, in the carrier elements 23 as in the Figure 1 to 6 have been described, insert body 31 is inserted. This means that the holding baskets 21 do not have to be produced with different distances between the central support elements 23a of the M-shaped or U-shaped, that is to say essentially vertical support elements 23a. The insert bodies 31 have a substantially U-shape with a centrally arranged incision 33 open at the top and grooves 35 formed on the outer edges of the legs of the insert body 31. The width of the grooves 35 is dimensioned such that the insert body 31 can be slightly clamped and above can be inserted into the carrier elements 23 and held on them by static friction. The figure 9 shows two inserted inserts 31, with the insert 31 inserted at the bottom having the incision oriented upwards and the second inserted insert 31 the groove 34 is directed downwards in order to be able to receive and hold a metal strip 29 between the two insert bodies 31 .

In the figure 7 it can be seen that the sheet metal strip 29, which acts as a joint sealing strip, is arranged in this embodiment in the lower part of the support elements, here the insert body 31. Of course, a metal strip 29 can also be used, which extends over a greater height. From the figure 8 the arrangement of the device equipped with insert bodies 31 is shown.

In the configuration of the device according to the Figures 11 to 14 take the place of support elements 23 made of wire support elements 123 made of plastic or sheet metal. These comprise a U-shaped body with two legs 123a on the opposite inner sides of which keyhole-shaped incisions 125 or holes (not shown) are formed, which are dimensioned in such a way that connecting rods 25 are inserted into them or the legs 123 on parallel connecting rods 25 can be clicked.

figure 14 shows a joint tape holding basket 121 which is made up of plastic carrier elements 123 held together by connecting rods 25 .

In the area of the lower edge of the plastic carrier element 123a there are two semi-circular indentations 127 educated. They come into contact with the longitudinally arranged reinforcing rods and stabilize the carrier element 123a.

Claims (10)

Device for moving joint sealing strips or sheets (19) between floor-ceiling, wall-wall, wall-ceiling, ceiling-wall components made of concrete, characterized by a joint-tape holding basket (21) which is placed on the reinforcement of the floor or ceiling slab (1) or the reinforcement of the wall (3) can be placed on and fastened to it. Device according to Claim 1, characterized in that the joint tape holding basket (21) comprises a plurality of carrier elements (23, 123) arranged spaced apart next to one another, which carrier elements (23, 123) comprise a body, which body has an incision (33) which is open at the top and runs downwards. and means for connecting the support elements (23, 23) to one another with connecting rods (25) running parallel to one another. Device according to Claim 1, characterized in that the support elements (23) comprise a body consisting of one or more wires, which body has the shape of a U or an M. Device according to Claim 1, characterized in that the carrier elements (23) are made of expanded metal Perforated sheet metal, consist of a dimensionally stable network of metal or other suitable materials. Device according to one of Claims 2 or 3, characterized in that the body has two central support elements (23a) connected to one another at the bottom by an arch (23c) and two central support elements (23a) and external support elements (23b ) made of wire. Device according to one of Claims 2 to 4, characterized in that an outwardly projecting end region (23d) is formed on an external carrier element (23b). Device according to one of Claims 1 to 6, characterized in that to accommodate a joint sealing strip (19) made of sheet metal strip (29) or a correspondingly thin plate made of plastic, a Insert body (31) with an open-topped incision (33) acts. Device according to claim 7, characterized in that the insert body (31) consists of plastic and laterally mounted grooves (35), in which the internal carrier elements (23a) can be accommodated. Device according to Claim 1, characterized in that the carrier elements (123) are made of plastic or sheet metal and are U-shaped, with a number of incisions (125) for receiving connecting rods (25) on the outside or inside of the legs of the U. ) are attached. Device according to Claim 9, characterized in that incisions (125) for fastening the carrier elements (23) to connecting rods (25) are formed on the outside of the legs of the U.

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