EP0104441A1 - Dispositif pour l'insertion de goujons - Google Patents

Dispositif pour l'insertion de goujons Download PDF

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Publication number
EP0104441A1
EP0104441A1 EP83108340A EP83108340A EP0104441A1 EP 0104441 A1 EP0104441 A1 EP 0104441A1 EP 83108340 A EP83108340 A EP 83108340A EP 83108340 A EP83108340 A EP 83108340A EP 0104441 A1 EP0104441 A1 EP 0104441A1
Authority
EP
European Patent Office
Prior art keywords
steel insert
steel
setting device
carrier
dowel
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.)
Granted
Application number
EP83108340A
Other languages
German (de)
English (en)
Other versions
EP0104441B1 (fr
Inventor
Richard Dipl.-Ing. Schulte
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.)
Heilit & Woerner Bau-Ag
Heilit und Woerner Bau AG
Original Assignee
Heilit & Woerner Bau-Ag
Heilit und Woerner Bau 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 Heilit & Woerner Bau-Ag, Heilit und Woerner Bau AG filed Critical Heilit & Woerner Bau-Ag
Publication of EP0104441A1 publication Critical patent/EP0104441A1/fr
Application granted granted Critical
Publication of EP0104441B1 publication Critical patent/EP0104441B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/04—Devices for laying inserting or positioning reinforcing elements or dowel bars with or without joint bodies; Removable supports for reinforcing or load transfer elements; Devices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints

Definitions

  • the invention relates to a method for producing a concrete road surface consisting of one or more concrete layers, wherein after the production of one or more of the layers, steel inserts, in particular dowels, are pressed into the not yet hardened layer from above and with shaking to a predetermined height above of the formation.
  • the ceiling When producing modern concrete roadways, the ceiling (single or multi-layer) is divided into individual fields). the deep joints are separated from each other either by the ceiling thickness (mostly in the longitudinal direction of the carriageway) or by cuts of smaller depth (usually in the transverse direction), which form the predetermined breaking points for the concrete carriageway pavement. This prevents uncontrolled cracks in the concrete pavement.
  • steel inserts in particular dowels, are inserted into the not yet hardened concrete during the manufacture of the ceiling, in particular dowels that have a Relativbe running in a vertical plane along the groove or joint limit movement, as well as anchors that counteract an enlargement of the groove or joint.
  • steel inserts must lie in the hardened concrete with only small tolerances at a predetermined height above the level so that they can develop their stabilizing effect.
  • the steel inserts are attached to elongated wire baskets. These wire baskets are anchored to the planned position along the cut to be made later on the formation before the production of the first concrete layer.
  • the slab concrete is then installed, particularly using slipform pavers. Due to the anchoring of the baskets, they retain their intended position in the majority of cases when the paver is run over and the concrete is compacted by vibrating bottles or the like.
  • a disadvantage of this method is that the laying and anchoring of the baskets on the formation requires a relatively large amount of work and is mechanized only to a small extent.
  • the steel inserts are made after the lower ones Lay the layer in the designated places and then shake to a predetermined height while shaking. Due to its stiffer consistency, the lower concrete layer generally ensures that the steel inlays maintain their intended position, in particular height, within the road surface during the further treatment of the ceiling. Nevertheless, it is not completely excluded that the steel inserts migrate from their intended position during further processing, in particular sink lower. This can happen if the lower base layer has a changing consistency, or if the vibrating and smoothing planks used in the manufacture of the top layer make the concrete flow down to deeper areas. This known method is particularly unsuitable for a single-layer construction with a single base layer, since this comparatively softer concrete is unable to hold the steel insert at the intended height until it has hardened.
  • the object of the invention is to improve the method of the type mentioned in such a way that it can also be used for single-layer concrete pavements and that it is ensured that the vibrated steel inserts maintain their intended position within the base layer.
  • the invention also relates to a steel insert setting device, in particular dowel setting device, for carrying out the above-mentioned method with a lowering and vibrating device for inserting the steel insert into the concrete pavement.
  • a steel insert setting device for carrying out the above-mentioned method with a lowering and vibrating device for inserting the steel insert into the concrete pavement.
  • the dowels are thrown from a leading settling device onto the top of the base layer and then pressed down into the concrete by fork-like supports of the lowering and vibrating device.
  • the leading settling device can be dispensed with without a significant increase in operating effort if the lowering and vibrating device is provided with at least one steel insert holder which can be moved into an equipping position.
  • the steel inserts may be inserted by hand into the steel insert holders, which hold them until they have been sunk into the concrete to the intended height.
  • Steel inserts with feet can easily be shaken in this way, whereas this is only possible to a very limited extent in the known dowel setting device.
  • the steel insert holder is preferably formed with a preferably pneumatically actuated holding pliers.
  • a plurality of steel insert holders are arranged next to one another on a horizontal support which can be connected to a frame of the steel insert setting device via at least one column parallelogram.
  • the desired pivoting movement about the carrier axis for moving the steel insert holders into the loading position can be made possible by an adjustment device for the support parallelogram angle.
  • the adjustment device can comprise a double-arm link, one of the arms being articulated with a support of the support parallelogram and the other arm with a preferably hydraulically adjustable adjustment rod.
  • At least one stop element is provided in the area of the steel insert holder for the stand (s) attached to the steel insert.
  • the invention also relates to a steel insert with at least one base for carrying out the specified method. It will. proposed that the base is formed by a bent wire construction. Such a stand is inexpensive to manufacture.
  • the steel insert can be attached, preferably attached, to the at least one pedestal from above.
  • the stop elements provided in the area of the steel insert holder for the base fixing it in the intended position.
  • the stop elements can, for example, engage laterally on the merely plugged-on feet and thus prevent their rotation around the steel insert, which may be in the form of a rod.
  • the dowel setting device forms part of a slipform paver (not shown in the rest), the basic structure of which is described, for example, in DE-OS 30 32 495.
  • the dowel setting device 10 is provided at the rear end of the slip circuit paver moving in direction A (to the left in FIG. 1).
  • a caterpillar 12 is indicated with a broken line, either on the formation 14 runs or on auxiliary banquets or rails provided on the side.
  • An essential part of the dowel setting device 10 is a box-shaped carrier 16 running transversely to the direction of travel, on which a row of holding pliers 18 are arranged side by side, one of which is shown schematically in FIG. 2.
  • the carrier 16 is supported at both ends via a column parallelogram 20 at one end of a swivel arm 22, the other end of which is articulated on a vertical support column 24.
  • the two columns 24 are rigidly attached to a frame 26 of the dowel setting device.
  • Both the column parallelogram 20 and the swivel arm 22 pivot in a vertical plane parallel to the direction of travel A.
  • a double-acting hydraulic cylinder 28 which is supported on the frame 26, engages on the swivel arm 22.
  • the swivel arm 22 pivots out of its horizontal starting position shown in FIG. 1 either downward into a lower end position (not shown) or into an upper end position 22 'indicated by a broken line.
  • the column parallelogram 20 consists of two columns 20a and 20b.
  • the support 20a is hinged at its upper end directly to the pivot arm 22 and at its lower end to a bearing block 16a on one side (in FIG. 1 the top) of the carrier 16.
  • the other end 20b is at its lower end to a bearing block 16b articulated on an adjoining side of the carrier 16 (the left, vertical side in FIG. 1).
  • the upper end of the support 20b is articulated on an arm 30a of a bent double-arm link 30, which is articulated in the region of the kink on the swivel arm 22 with a swivel axis 32, which swings axis of the support 20a coincides.
  • the other arm 30b of the double arm link 30 is connected via an adjusting rod 34 to an arm 36a of a second bent double arm link 36.
  • This link 36 is articulated on the support column 24, the pivot axis 38 coinciding with the pivot axis of the pivot arm 22 on the support column 24.
  • a second double-acting hydraulic cylinder 40 which is supported on a projection 42 of the support column 24, engages the other arm 36b of the link 36.
  • the two links 30 and 36 thus pivot in a common vertical plane parallel to direction A; the adjusting rod 34 forms a rigid coupling between the two links 32 and 36.
  • the link 36 assumes two end positions, the normal position shown in FIG. 1 with a solid line and the end position 36 'indicated by a broken line, which is called the loading position in the following becomes.
  • the carrier 16 can be stationary with respect to the formation 14 during the lowering process, during which the slipform paver continues to travel in direction A.
  • the supports 20a and 20b holding the support 16 pivot around the trestles 16a and 16b of the support 16 (counterclockwise in FIG. 1).
  • Strength in F. 1 such a relative position 16 ′′ of the carrier 16 relative to the frame 26 is indicated by dash-dotted lines.
  • the arm 22 can be inserted into a concrete layer 48 above the formation 14 for countersinking dowels 46 provided with feet 44.
  • the arm 22 is gradually lowered into its lower end position.
  • the handlebar 36 is pivoted into its fitting position 36' by corresponding actuation of the hydraulic cylinder 40, the handlebar 30 swings accordingly into the position 30 '.
  • the carrier 16 is pivoted in such a way that, in addition to a slight displacement, it undergoes a rotation about its longitudinal axis through an angle of approximately 95 ° (clockwise in FIG. 1).
  • the dowels 46 are inserted into the dowel setting device 10 by hand, as will be explained in the following.
  • FIGS. 1 and 2 The basic structure of the holding tongs 18 is shown in FIGS. 1 and 2. It can be seen that on two opposite sides of the carrier 16 are welded to these sheet metal tabs 50, which protrude in the same direction over an intermediate carrier side. With the interposition of a rubber element 52, retaining tabs 54 of the pliers 18 are fastened to the tabs 50.
  • the tabs 54 are elongated in the direction perpendicular to the longitudinal axis 58 of the support and are provided at their end remote from the support 16 with a receiving groove 60 adapted to the diameter of the rod-shaped cylindrical dowel 46. The two grooves 60 are aligned with one another.
  • the two tabs 54 are welded to the two ends of a bolt 56.
  • this bolt 56 (2 the underside in F ig.) (The lower bracket in Fig. 2) is on the other side one of the two lugs 54 welded to a pin piece 62, which in turn at its free end with an end plate 64. is welded.
  • the end plate 64 protrudes so far beyond the two tabs 54 that a dowel 46 inserted into the grooves 60 can be pushed up to the end face contact with the plate 64.
  • a bolt piece 66 is in turn welded on as an extension of the bolt 56.
  • a swivel plate 68 with a swivel axis parallel to the support axis 58.
  • the plate 68 is provided with tabs 69a which protrude downward in a U-shape and which comprise the bolt piece 66 on two opposite sides.
  • a double-acting hydraulic cylinder 70 (see FIG. 1) is provided, which is supported on the one hand on the end of the plate 68 near the support and on the other hand on the lower tab 54
  • a double arrow C is drawn, which symbolizes a line of force.
  • the cylinder 70 engages lateral projections 54a and 68b of the lower tab 54 or the plate 66.
  • a spacer 71 running in the cylinder direction can be provided between the hydraulic cylinder 70 and, for example, the lower projection 54a. From Fig. 1 it can be seen that with a corresponding actuation of the hydraulic cylinder 70 ', the plate 68 can be pivoted back and forth in the direction of the double arrow D.
  • the equipment can, however, with attachable feet 44 z. 3 in such a way that the dowels without feet are first inserted into the grooves 60, then the pliers 18 close and only then the feet are attached.
  • the carrier 18 equipped with dowels in this way is now brought into its initial position, shown in FIG. 1 with a solid line, in which the dowels 46 are located just above the concrete layer 48 and the feet 44 are already in their correct orientation.
  • the hydraulic cylinder 40 only has to be brought into its normal position with the piston rod retracted, as a result of which the support 16 pivots counterclockwise and the dowels 46 assume a horizontal position below the support 16.
  • the swivel arm 22 can be returned to its starting position.
  • the dowel setting device 10 is now ready for the insertion of dowels 46.
  • the hydraulic cylinder 28 lowers the arm 22, so that the dowels 46 dip into the not yet consolidated layer 48 with the feet 44 ahead.
  • vibrating drives which either engage the carrier 16 or the pliers 18, set the pliers 18 and thus the dowels 46 in shaking motion, whereupon the concrete surrounding them becomes fluid and further penetration of the dowels 46 does not cause any greater resistance opposed.
  • feet can be extended at both ends of the support, which are supported on the side strips on both sides of the finished layer 48 with constant force during the lowering of the support 16.
  • the slipform paver continues to move, so that the distance a according to FIG. 1 between the frame 26 and the carrier 16 increases with the corresponding pivoting of the supports 20a, 20b.
  • the hydraulic cylinder 28. while the swivel arm 22 is continuously pulled down.
  • the holding tongs 18 are opened and the swivel arm 22 is pivoted upwards, whereupon the carrier 16 swings back into its starting position.
  • the carrier 16 is pivoted up into its loading position 16 ′, whereupon the process described above is repeated.
  • an upper concrete layer 80 is applied to the lower layer 48 provided with dowels.
  • the dowels 46 With a thickness b of the lower layer of approximately 14 cm and a thickness c of the upper layer 80 of approximately 6 cm, the dowels 46 become at a height h of approximately 10 cm above the level 14 built-in.
  • the dowels 46 consist of steel rods with a length of about 50 mm and a diameter of about 25 mm, which are covered with a 1 mm thick bitumen or plastic layer.
  • the joint 84 indicated by a broken line in FIG. 4 is milled into the ceiling to a depth d of approximately 7 cm.
  • Fig. 3 shows a further preferred embodiment of a base 44 ', which is bent from a single piece of wire, in particular in that the wire is bent first as a U-shape with a short middle leg 86 and two long side legs 88 and then the side legs in the same way, in two mutually parallel planes perpendicular to the central leg 86, bends a second time in a U-shape (see FIG. 3).
  • the two middle parts 90 of the two side leg U-shapes are also each provided with an indentation 92 in the area of their center length, which opens outwards.
  • the cylindrical dowel 46 can be pressed simultaneously into both indentations 92, which then hold the dowel 46 in a clamping manner.
  • the middle leg 86 and the two bent free ends of the side legs 88 are on the ground z. B. on the level 14.
  • the base 44 1 can be easily attached to the dowel 46 held by the closed pliers 18.
  • the stop strips 74 are not a hindrance, since the push-on movement takes place in the radial direction with respect to the support axis 58.
  • the dowels provided with the feet can also be used in the manner described above Manufacturing of road surfaces in single-layer construction can be used. It is advisable to pre-compact the single layer of concrete before inserting the dowels, in particular by appropriate vibrating treatment, to ensure that when the single base layer is subsequently smoothed by vibrating planks, vibrating bottles or the like, the dowels resting on the base feet are not knocked over.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP83108340A 1982-08-27 1983-08-24 Dispositif pour l'insertion de goujons Expired EP0104441B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3232021 1982-08-27
DE19823232021 DE3232021A1 (de) 1982-08-27 1982-08-27 Verfahren zur herstellung einer mit stahleinlagen versehenen betonfahrbahndecke und stahleinlagensetzgeraet

Publications (2)

Publication Number Publication Date
EP0104441A1 true EP0104441A1 (fr) 1984-04-04
EP0104441B1 EP0104441B1 (fr) 1986-06-18

Family

ID=6171914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108340A Expired EP0104441B1 (fr) 1982-08-27 1983-08-24 Dispositif pour l'insertion de goujons

Country Status (2)

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EP (1) EP0104441B1 (fr)
DE (2) DE3232021A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195401A3 (fr) * 1985-03-18 1987-08-19 Heilit & Woerner Bau-AG Procédé pour la confection de chaussées: limitation de vibration dans la région des goujons
RU2150547C1 (ru) * 1998-09-24 2000-06-10 Айрапетов Георгий Андронникович Способ изготовления монолитных оснований высокоскоростных железных дорог
WO2000036221A1 (fr) 1998-12-11 2000-06-22 Teerbau Gmbh Procede de fabrication d'un revetement de route en beton a l'aide de goujons

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508443A (en) * 1946-08-20 1950-05-23 John E Carter Sealed joint for concrete slab road pavements
EP0051885A1 (fr) * 1980-11-07 1982-05-19 Andréas Moser Dispositif perfectionné d'enfoncement et de positionnement de goujons dans des dalles en béton

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508443A (en) * 1946-08-20 1950-05-23 John E Carter Sealed joint for concrete slab road pavements
EP0051885A1 (fr) * 1980-11-07 1982-05-19 Andréas Moser Dispositif perfectionné d'enfoncement et de positionnement de goujons dans des dalles en béton

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195401A3 (fr) * 1985-03-18 1987-08-19 Heilit & Woerner Bau-AG Procédé pour la confection de chaussées: limitation de vibration dans la région des goujons
RU2150547C1 (ru) * 1998-09-24 2000-06-10 Айрапетов Георгий Андронникович Способ изготовления монолитных оснований высокоскоростных железных дорог
WO2000036221A1 (fr) 1998-12-11 2000-06-22 Teerbau Gmbh Procede de fabrication d'un revetement de route en beton a l'aide de goujons
WO2000036220A1 (fr) * 1998-12-11 2000-06-22 Teerbau Gmbh Dispositif de placement de goujons et entretoises pour goujons pour des revetements de route en beton
DE19982708B4 (de) * 1998-12-11 2006-09-14 Teerbau Gmbh Verfahren zur Herstellung einer Betonfahrbahndecke mit Dübel

Also Published As

Publication number Publication date
DE3364190D1 (de) 1986-07-24
EP0104441B1 (fr) 1986-06-18
DE3232021A1 (de) 1984-03-01

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