EP1218596A1 - Plaque prefabriquee en beton arme - Google Patents

Plaque prefabriquee en beton arme

Info

Publication number
EP1218596A1
EP1218596A1 EP00962509A EP00962509A EP1218596A1 EP 1218596 A1 EP1218596 A1 EP 1218596A1 EP 00962509 A EP00962509 A EP 00962509A EP 00962509 A EP00962509 A EP 00962509A EP 1218596 A1 EP1218596 A1 EP 1218596A1
Authority
EP
European Patent Office
Prior art keywords
precast
prefabricated
plate
panel
joint
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
EP00962509A
Other languages
German (de)
English (en)
Other versions
EP1218596B1 (fr
Inventor
Dieter Reichel
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.)
Max Boegl Bauunternehmung GmbH and Co KG
Original Assignee
Max Boegl Bauunternehmung GmbH and Co KG
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 Max Boegl Bauunternehmung GmbH and Co KG filed Critical Max Boegl Bauunternehmung GmbH and Co KG
Publication of EP1218596A1 publication Critical patent/EP1218596A1/fr
Application granted granted Critical
Publication of EP1218596B1 publication Critical patent/EP1218596B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E01C5/00—Pavings made of prefabricated single units
    • E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
    • E01C5/08—Reinforced units with steel frames
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/005—Making of concrete parts of the track in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
    • E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/09—Ballastless systems
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/10—Making longitudinal or transverse sleepers or slabs in situ or embedding them

Definitions

  • the invention relates to a precast reinforced concrete slab according to the preamble of claim 1 and a method according to the preamble of claim 22.
  • a generic precast reinforced concrete slab is known from DE 197 33 909 A1.
  • the precast reinforced concrete slab is intended for the construction of a composite slab construction, in particular a solid track for high-speed rail traffic.
  • At least two steel rods extending in the longitudinal direction of the plate and protruding beyond the two end faces are arranged in the precast reinforced concrete slab.
  • Each steel rod is immovably anchored at only one point in the precast reinforced concrete slab and is otherwise freely stretchable. This provides an expansion path which is always the length of each precast concrete slab and, as a result, exerts a great tension on the concrete inserted in the butt joint.
  • predetermined breaking points which are arranged at regular intervals in the precast reinforced concrete slab, are bridged by the bracing of the steel bars and thus lose their function.
  • unavoidable cracks in the precast reinforced concrete slab occur at unpredictable locations, especially not in the area of the intended breaking points.
  • the method also proposed in this DE 197 33 909 A1 for producing a composite panel construction, in particular a fixed one Roadway for high-speed rail traffic consists in first connecting the ends of the steel bars with one another in a force-fitting manner, and then pressing the two precast reinforced concrete slabs apart with a defined force of the steel bars.
  • the precast reinforced concrete slabs are held in this position and the entire butt joint between the two adjacent faces of the precast reinforced concrete slabs is filled with a solidified filling compound. Then the defined force is released and the filling compound is clamped by the now occurring clamping force of the steel rods.
  • DE 26 21 793 discloses a method for producing a grate or panel composite construction from prestressed precast concrete parts.
  • the joints between the precast concrete elements are prestressed after the precast concrete elements have been joined together and aligned.
  • tendon ends protrude from the precast concrete parts, with which a connection is made between adjacent precast concrete parts.
  • the resulting joint is pressed apart by means of a pressing device, a mass is introduced into this joint as a joint filling, and the pressing device is relaxed and removed only after the joint filling has hardened or set. After this mass has set, turnbuckles, which were arranged at the tendon ends were tightened with a controlled force.
  • the filled joints come under tension. Then the concrete slabs are underfilled or pressed.
  • the object of the present invention is to avoid the disadvantages of the prior art and in particular to ensure a precise alignment of the precast reinforced concrete slabs.
  • the steel rod is anchored in the area between the end face of the precast slab and the first predetermined breaking point and, based on this anchoring in the direction of the respective end face, is essentially freely movable in its longitudinal direction. This ensures that the predetermined breaking point is not pressurized and may therefore lose its effect.
  • the predetermined breaking point is a dummy joint extending transversely to the longitudinal direction of the prefabricated panel, the predetermined breaking point can be produced in a simple manner in the casting of the prefabricated panel.
  • the thickness of the precast slab is reduced at this point by the dummy joint. Cracks then appear in the immediate vicinity of this dummy joint and can therefore be checked for their size in a targeted manner. The condition of the precast slab is therefore easy to check.
  • the anchoring of the steel rod is provided approximately 50 cm from the end face of the prefabricated panel. This gives the steel rod a sufficient length to stretch it according to the requirements for a permanent connection of several precast panels. Due to the expansion, a pressure force is applied to the joint, which can cause water to penetrate and thus destroy the joint or the concrete.
  • the steel rod be in the area between the end face of the prefabricated plate and the anchoring of a pipe or hose, in particular is covered by a shrink hose.
  • a shrink hose This can ensure that the steel rod inside the tube or hose or, if the shrink hose has been reduced from a larger diameter to a smaller diameter after the concrete has set, is arranged in its longitudinal direction in the precast slab.
  • the anchor point of the steel rod is in turn in the first segment of the finished plate. From this anchor point to the end of the steel bar, the steel bar is then to be stretched relative to the precast slab.
  • a safe corrosion Protection in the non-concreted area also provides a so-called ten-so bandage.
  • the sheathing of the steel rod has a larger inner diameter than the outer diameter of the steel rod, sliding of the steel rod within the sheathing is possible.
  • the casing is firmly connected to the concrete, while the steel rod is stretchable within the casing.
  • sliding between the concrete and the shrink tube is possible.
  • fastening means for connecting the steel rod of the one prefabricated panel to a steel rod of the adjacent prefabricated panel can be simply inserted.
  • the pocket also allows the span of the steel rod to be sufficiently long.
  • the underside of the prefabricated panel thus essentially forms a straight line along the end face of the prefabricated panel, so that appropriate sealants can be easily designed. In addition, with this straight edge, it is easier to seal the base and less sealing material is required.
  • the bag has an undercut in plan view, additional clawing occurs when the bag is poured out with concrete, for example of the neighboring precast slabs.
  • the pocket thus causes the prefabricated panels to be fixed vertically to one another, so that additional security is provided against unintentional displacement of the prefabricated panels relative to one another.
  • a wide joint is created between the adjacent prefabricated panels. This wide joint is in turn suitable for receiving fasteners for the two prefabricated panels and facilitates access to these fasteners during their assembly. In addition, there is sufficient space for tensioning the steel bars.
  • a potting compound can be introduced between the two precast panels in a defined manner.
  • a connecting means for connecting the steel rod of one prefabricated panel to the steel rod of the adjacent prefabricated panel can be arranged within the wide joint.
  • the assembly of the precast slabs is thus considerably simplified.
  • the accessibility of the connecting means is relatively easy if the prefabricated panel is to be dismantled.
  • adjustment devices, in particular spindles, are arranged on the precast plate, the height of the precast plate can be adjusted to the required extent.
  • the precast slab is made of fiber reinforced concrete, some of the conventional reinforcement can be omitted. In addition to this advantage, there is also the further advantage of smaller crack widths.
  • the narrow joint and / or the wide joint between two prefabricated panels is poured with a casting compound, in particular with concrete, then when the tensile force is applied to the steel bars, support of the two prefabricated panels is ensured via the poured narrow joint. As a result, the narrow joint is pressed together, which reliably prevents water from penetrating.
  • an infusion compound in particular a bitumen-cement mortar
  • This viscous casting compound is introduced through filling openings in the prefabricated panel from above or laterally from the edge of the panel into the cavity between the prefabricated panel and the substrate.
  • the hardening of this casting compound is largely independent of temperature, i.e. that the prefabricated panel cures regardless of the outside temperature in the previously precisely aligned position. The fine adjustment of the precast plate is therefore largely retained.
  • the casting compound is coated in particular with a sealing element, in particular an elastic, preferably porous plastic, then a complex, different seal is used when casting in the prefabricated parts. plate avoided.
  • the sealing element is so elastic that it still has contact with the underside of the prefabricated plate and with the top of the substrate when the prefabricated plate is adjusted in height for the alignment of the prefabricated plate. Leakage of the underpour is thereby avoided. Even with the partially required inclinations of the roadway, a reliable pouring out of the substrate is effected with the aid of these particularly advantageous sealing elements.
  • Sealing elements which have proven to be particularly advantageous are a rubber mat, in particular made of neoprene, or a sponge.
  • the elements can either be left in place after the casting has hardened or can be used for re-use when casting in another prefabricated panel.
  • a sponge it is also possible for air to be pressed through the sponge by means of the sealing compound and thus not to lead to inclusions under the prefabricated panel.
  • the adjacent prefabricated panels can also be fixed with them in order to be able to tension the steel bars.
  • the spacers can be arranged in the area of the narrow or wide joints.
  • the joint can be poured out in one piece particularly advantageously.
  • the spacers are used to hold the precast panels in the fine-tuned position after the leveling and before or after tensioning the steel bars.
  • the spacers are advantageously wedges that can be adjusted to the exact spacing position.
  • a method according to the invention for producing a composite panel construction from precast reinforced concrete slabs with at least two steel bars extending in the longitudinal direction of the precast slab and projecting beyond their concrete surface on the end face and with a joint between The precast slab is first laid down and finely aligned with neighboring precast slabs. Subsequently, the finely finished prefabricated panel is poured with an under-molding compound and, after the under-molding has hardened, the prefabricated panel is connected to the neighboring prefabricated panel by pouring the joint and connecting the steel bars.
  • the individual prefabricated panel is first brought into its exact position and largely fixed in this position.
  • Another major advantage is that if a prefabricated panel is damaged, for example when a train is derailed, individual prefabricated panels can be removed from a composite panel construction and replaced with a new prefabricated panel.
  • An assembly-friendliness with the manufacturing method according to the invention is hereby achieved, which includes great advantages not only in the initial assembly but also in the repair.
  • the steel rods are advantageously stretched to connect the adjacent prefabricated panels. This creates a tension between the adjacent prefabricated panels, which additional fixation and watertight connection of a joint between the precast panels guaranteed.
  • narrow joints and wide joints are provided on the panel joint, it is particularly advantageous if the narrow joints are first cast with a casting compound, then the steel bars are tensioned and finally the wide joints are closed. This results in a uniform load on the precast panels and the sealing compound.
  • the joints between the precast panels are advantageously pressed together. This compensates for the shrinkage of the casting compound during setting and provides a watertight connection between the precast panels.
  • bitumen-cement mortar has proven to be particularly advantageous as the casting compound.
  • the bitumen-cement mortar is viscous and, on the one hand, suitable for completely filling the space between the precast slab and the subsurface without any bubbles. On the other hand, it creates a good connection with the precast slab and also with the subsoil, which is often a hydraulically bound base course or an asphalt base course.
  • This bitumen-cement mortar ensures that the prefabricated panel is precisely fixed to the substrate and that the precast panel, which was adjusted before the grouting compound is introduced, is fixed in its position.
  • an elastic, in particular porous, sealing element is used as the formwork for the casting, a particularly simple, inexpensive and efficient sealing of the intermediate space between the prefabricated panel and the substrate is obtained.
  • the sealing element prevents the casting from flowing out of this space.
  • the formwork can be laid out before the leveling, in particular before the precast slab is put down. Due to its elasticity, it adapts itself exactly to the space between the precast slab and the subsurface, even while it is being straightened, and seals the cavity.
  • the prefabricated plate is used as a carrier for rails, it has been found to be particularly advantageous that the rails are braced on the prefabricated plate in rail fastenings before the finished plate is straightened. Since the rails are decisive for the alignment of the precast panel, this is particularly advantageous because Accuracies in the rail fastenings can be compensated.
  • the spacers are arranged in the area of the narrow joints and / or the wide joints, the spacers are well supported on the two prefabricated panels.
  • the spacers can be relaxed or removed.
  • FIG. 1 shows a plan view of part of a precast reinforced concrete slab
  • FIG. 2 shows a section transverse to the longitudinal direction of a precast reinforced concrete slab, 3a - to 3d different process steps in the connection of two precast reinforced concrete slabs,
  • FIG. 4 shows a detailed view in longitudinal section of a precast reinforced concrete slab according to FIG. 3c
  • FIG. 5 shows a joint joint with spacers
  • FIG. 6 shows a spacer in top view
  • Figure 7 is a spacer in side view.
  • FIG. 1 shows a part of a precast reinforced concrete slab 10 in plan view.
  • the precast plate 10 has a plurality of bumps 12 in this embodiment. Alternatively, a continuous belt or a concrete channel that is continuous or interrupted is also possible.
  • the bumps 12 are arranged in two rows in the longitudinal direction of the prefabricated plate 10, as a result of which they can be used in the purpose shown here for fastening rails for, for example, high-speed trains.
  • a rail 30 is attached to each of the rows of bumps 12.
  • the rail 30 is fastened to each hump 12 with fastenings 31, which are only shown symbolically here.
  • the attachments 31 can be fixed in prefabricated dowels 32 or corresponding holes if necessary.
  • two bumps 12 are arranged on a segment of the precast plate 10.
  • the individual segments are separated from one another by dummy joints 15.
  • the dummy joints 15 act as predetermined breaking points, in which unavoidable small cracks in the precast reinforced concrete slab 10 are deliberately created in the precast slab 10. Through this targeted cracks occurring at these points, the remaining precast reinforced concrete slab 10 is largely spared from cracks and can therefore be carried out in a stable manner and can be easily checked for its condition.
  • the structure of the precast reinforced concrete slab 10 must therefore be selected such that the cracks actually occur in the area of the predetermined breaking points or dummy joint 15.
  • steel rods 19 which act as tie rods in the prefabricated panel 10, extend from one end of the prefabricated panel to the other end of the prefabricated panel 10. At the end faces 17 of the prefabricated panel 10, they protrude from the concrete surface and can, as will be described in detail later will be connected to the adjacent precast slab or its steel bars.
  • the end face 17 has an essentially straight continuous edge, as well as two recesses or pockets 24 in this exemplary embodiment.
  • the pockets 24 are recesses with respect to the rectilinear end face 17, in which the steel rods 19 protrude from the concrete surface.
  • the pockets 24 also have undercuts (shown in dashed lines) which additionally improve the stability of the connection of the prefabricated panel 10 to the adjacent prefabricated panel, not shown.
  • the later pouring of the joints between two precast panels 10 is more permanent, since the penetration of water is prevented by these undercuts, among other things.
  • the precast plate 10 has a plurality of filling openings 13 (only one shown here). A pouring agent is introduced through these filling openings 13 under the finished plate 10.
  • Figure 2 shows a part of a section transverse to the longitudinal axis of the prefabricated panel 10 and its background.
  • bumps 12 are arranged on the prefabricated plate 10, on which the rail 30 with fastenings 31 is arranged.
  • the fastenings 31 are fixed in dowels 32, which are introduced into the finished part plate 10.
  • the precast reinforced concrete slab can be constructed in the conventional way with the usual reinforcement. It is an alternative and particularly advantageous if the prefabricated panel 10 is made with fiber concrete. There are steel fibers in the fiber concrete, which give the precast panel 10 great strength.
  • the steel fibers can be bent, twisted or have another shape with which they support the interweaving in the concrete. This makes it possible to obtain an extremely strong reinforced concrete for the precast slab 10, which has particularly high strength and durability, particularly in the edge areas or in the areas in which the fastenings 31 are fixed.
  • a plurality of spindles 37 are arranged on the precast plate 10.
  • the spindle 37 interacts in a manner known per se with a nut 39 in such a way that the height of the precast plate 10 is aligned.
  • the spindle 37 is supported on a support plate 38 in order to find a firm and constant base in order to fine-tune the height of the plate 10.
  • the spindle 37 extends through a recess in the precast plate 10 in order to allow a large adjustment path.
  • an elastic formwork 41 is laid out in the edge area of the precast panel 1.
  • This formwork 41 serves to prevent an underfill 42 poured under the precast panel 10 after alignment of the precast panel 10 from running out.
  • the preferably viscous base 42 is covered by the formwork 41 the precast plate 10 held.
  • the formwork 41 is preferably an elastic plastic part. In particular, sponge-like materials with coarse pores or neoprene or similar plastics have proven to be advantageous.
  • the formwork 41 can either remain at this point after the under-casting has hardened and thus provide a certain degree of protection against moisture. If the formwork is to be used for further castings, it is also possible to pull this formwork 41 out from under the prefabricated panel 10 and to use it again.
  • the height of the precast plates 10 is precisely aligned by means of the spindles 37 and nuts 39.
  • the steel rods 19 of the two prefabricated panels to be connected are to be aligned with one another in their longitudinal axis. ( Figure 3a).
  • the prefabricated panel 10 is poured with a casting 42 through the filling openings 13.
  • the underpour 42 is preferably made of a bitumen-mortar concrete.
  • the lower casting 42 connects the prefabricated plate 10 to the hydraulically bound base layer 45 prepared below.
  • the narrow joints 26 located between the two plates 10 are poured out with a casting compound, preferably concrete (FIG.
  • the casting can only take place in the area of the butt joints 21 of the prefabricated panel 10, or else fill the lower area between the prefabricated panels 10, in which the wide joints 27 are located upwards.
  • the steel rods 19 are connected to one another by means of turnbuckles 25 and stretched. This creates a pressure on the potting compound 25 in the narrow joints 26 and thus effectively prevents water from entering.
  • this procedure does not change the exact alignment of the precast panels 10 when the steel bars 19 are clamped, since they are based on the Support casting compounds 25 and is fixed with respect to the substrate by means of the casting 42 ( Figure 3c).
  • the wide joint 27 can be closed to prevent corrosion (FIG. 3d).
  • This closing can also be carried out by introducing a casting compound 25, for example concrete.
  • a removable cover can also be provided here.
  • the two prefabricated panels 10 are more firmly connected by casting the wide joint 27, since this results in an additional interlocking of the prefabricated panels 10 with a corresponding design of the wide joint 27.
  • FIGS. 3a to 3d The procedure for the connection of the two prefabricated panels 10 was shown in FIGS. 3a to 3d each without a built-up rail 30. If the precast panels are used for high-speed rail traffic, it is advantageous if the rail 30 is already set up for aligning the precast panels 10, since the rail 30 is decisive for the alignment of the precast panels 10.
  • FIG. 4 shows the joint of the two prefabricated panels 10 prepared up to the working step of FIG. 3c in more detail.
  • the prefabricated panels 10 are cut lengthwise in the area of the steel rods 19.
  • the prefabricated panels 10 are arranged on a base 42, which is supported on a hydraulically bound base layer.
  • the formwork 41 prevents the underpour 42 from escaping from the area of the prefabricated panel 10 when the prefabricated panel 10 is being poured or pressed under.
  • the precast plate 10 has humps 12, on which with fasteners
  • precast plate 10 Represent precast plate 10.
  • a number of steel bars are be introduced 19.
  • the steel bars 19 are largely firmly anchored in the precast plate 10. Only in the area from the dummy joint 15 to the end of the respective prefabricated plate 10 is the steel rod 19 not connected to the concrete of the prefabricated plate and thus freely stretchable.
  • the steel rod 19 is located in a hose 20, which prevents the steel rod 19 from connecting to the concrete of the precast plate 10.
  • the narrow joints 26 are filled with a casting compound 25.
  • the steel rods 19 are connected to one another and stretched by means of a turnbuckle 28. The expansion causes the steel rods to be stretched in their free-moving area in the respective hose 20 and thus to cause a pretension.
  • the prestressing causes the casting compound 25 to be pressed or the composite construction to be stabilized, so that the penetration of water into the joints is prevented.
  • the precast panels 10 are pressed tightly against one another via the casting compound 25.
  • Characterized in that the steel rod 19 is movably mounted only in the area between the dummy joint 15 and the end of the precast plate 10, it is reliably ensured that the dummy joint 15 is not bridged with a compressive force and thus loses its function.
  • the force on the concrete body is applied only in the last segment, namely between the dummy joint 15 and the end of the precast plate 10 via the steel bars 19.
  • the underpour 42 can be removed in the event that the plate or the subsoil lowers in the course of using the plate.
  • the GE- is characterized in that the bottom casting 42 is pierced transversely to the longitudinal direction of the plate.
  • a saw in particular a saw cable, is inserted into the borehole and the bottom casting is sawn through under the plate. For example, with spindles, the plate can then be precisely aligned and re-grouted.
  • FIG. 5 shows the top view of a joint joint between two prefabricated panels 10 and 10 '.
  • Spacers 50 are arranged to fix the prefabricated panels 10 and 10 '.
  • the spacers 50 are each located in the area of a narrow joint.
  • 2 spacers 50 ' can be provided in the area of the wide joints. In each of the designs it is ensured that the fine-tuned condition of the precast panels 10 and 10 'is maintained during the tensioning of the steel bars.
  • FIG. 6 shows a top view of a spacer 50.
  • the spacer 50 consists of a base plate 51, which is attached to the precast plate 10 or 10 '.
  • This base plate 51 can either be cast into the prefabricated plate 10, 10 'or be attached subsequently.
  • One of the base plates 51 has guides 52 for a wedge 53.
  • the wedge 53 is inserted into the guides 52 between the two base plates 51 when the precast plates 10 and 10 'are aligned. This fixes the distance between the precast panels 10 and 10 ', so that when the steel bars are tensioned, the precast panels 10 and 10' cannot be moved towards each other and the orientation of the panels is not changed.
  • FIG. 7 shows a side view of the spacer 50.
  • the prefabricated panels 10 and 10 ' which are located on the base 42 or the support layer 45, are held at a defined distance by means of the wedge 53. This distance is permanently fixed after the steel rods are braced by pouring the joint with a casting compound 25. After the casting compound 25 has hardened, the position of the precast panels 10 and 10 'permanently fixed to each other. The wedge 53 can be removed if necessary and used for the next joint. In a special embodiment, the sealing compound 25 can also be at least temporarily left out in the area of the spacer 50. After the remaining casting compound 25 has hardened, the complete spacer 50 can be removed from the joint joint together with the wedge 53 and used for a further connection point.
  • the use of the spacers allows an immediate application of the tensile force to the steel bars and a later joint grouting of wide and narrow joints. This is particularly advantageous if there are unfavorable temperature and climatic conditions for grouting the joint. A more favorable temperature and a suitable climate can be awaited for the final pouring of the wide and narrow joints, so that the material is optimally processed.
  • the present invention is not limited to the embodiment shown.
  • the precast panels 10 can also be used for areas of application other than those described.
  • the steel bars 19 can also be prevented in another way from the connection with the concrete of the precast plate 10 in the last segment. Combinations of the individual features are of course also within the scope of the invention.

Landscapes

  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Laminated Bodies (AREA)
  • Bridges Or Land Bridges (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Silicon Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Railway Tracks (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

Plaque préfabriquée en béton armé, destinée à être utilisée en particulier comme élément de construction d'une voie sans ballast pour moyens de transport à grande vitesse, qui comporte au moins deux barres d'acier s'étendant dans le sens de la longueur de la plaque préfabriquée (10) en béton armé et dépassant de la surface de béton au niveau de la face avant (17). Ladite plaque préfabriquée (10) comporte au moins une et de préférence plusieurs lignes de rupture (15) qui s'étendent transversalement par rapport aux barres d'acier (19). La barre d'acier (19) est ancrée dans la zone située entre la face avant (17) de la plaque préfabriquée (10) et la première ligne de rupture (15) et montée de manière à se déplacer essentiellement librement dans le sens longitudinal, en direction de la face avant (17) correspondante. Selon un procédé de fabrication d'une construction constituée d'un ensemble de plaques préfabriquées (10) en béton armé, la plaque préfabriquée (10) est posée, puis placée avec exactitude. Du béton (42) est alors injecté sous la plaque préfabriquée posée avec exactitude. Après séchage du béton injecté (42), la plaque préfabriquée (10) est reliée à la plaque préfabriquée (10) voisine par coulage de béton dans la fente de séparation et liaison des barres d'acier (19).
EP00962509A 1999-10-06 2000-09-20 Plaque prefabriquee en beton arme Expired - Lifetime EP1218596B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19948003A DE19948003A1 (de) 1999-10-06 1999-10-06 Stahlbetonfertigteilplatte
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PCT/EP2000/009188 WO2001025538A1 (fr) 1999-10-06 2000-09-20 Plaque prefabriquee en beton arme

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FR3034785A1 (fr) * 2015-04-10 2016-10-14 Antoine Marot Structure elementaire prefabriquee, assemblage d'une pluralite de telles structures, procede de fabrication et d'installation d'une telle structure
EP3263766A1 (fr) 2016-06-27 2018-01-03 Antoine Marot Dalle pour un véhicule ferroviaire et/ou un véhicule sur pneus guidés

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FR3034785A1 (fr) * 2015-04-10 2016-10-14 Antoine Marot Structure elementaire prefabriquee, assemblage d'une pluralite de telles structures, procede de fabrication et d'installation d'une telle structure
EP3263766A1 (fr) 2016-06-27 2018-01-03 Antoine Marot Dalle pour un véhicule ferroviaire et/ou un véhicule sur pneus guidés

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CZ2002964A3 (cs) 2002-08-14
US7556208B1 (en) 2009-07-07
JP3829091B2 (ja) 2006-10-04
DE50012538D1 (de) 2006-05-18
ES2260052T3 (es) 2006-11-01
UA71642C2 (en) 2004-12-15
AU7420500A (en) 2001-05-10
AU773566B2 (en) 2004-05-27
EE200200177A (et) 2003-04-15
ATE322579T1 (de) 2006-04-15
PL354319A1 (en) 2004-01-12
PT1218596E (pt) 2006-10-31
TR200200900T2 (tr) 2002-08-21
DE19948003A1 (de) 2001-04-12
CN100346033C (zh) 2007-10-31
SK287688B6 (sk) 2011-06-06
KR20020047202A (ko) 2002-06-21
EP1218596B1 (fr) 2006-04-05
CN100570057C (zh) 2009-12-16
BR0014462A (pt) 2002-10-22
CZ295073B6 (cs) 2005-05-18
EA003179B1 (ru) 2003-02-27
BG64131B1 (bg) 2004-01-30
HRP20020284B1 (en) 2009-05-31
JP2003511586A (ja) 2003-03-25
SK4532002A3 (en) 2002-10-08
YU21502A (sh) 2004-09-03
KR100692497B1 (ko) 2007-03-09
HRP20020284A2 (en) 2004-04-30
CN1377438A (zh) 2002-10-30
PL208006B1 (pl) 2011-03-31
IL148754A (en) 2005-09-25
CN1807757A (zh) 2006-07-26
EA200200420A1 (ru) 2002-10-31
WO2001025538A1 (fr) 2001-04-12
CA2387698A1 (fr) 2001-04-12
HUP0202735A2 (en) 2003-02-28
IL148754A0 (en) 2002-09-12

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