Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
  • E01B19/003—Means for reducing the development or propagation of noise
• • 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
  • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
  • E01C9/04—Pavings for railroad level-crossings

Definitions

• the invention relates to a track covering with covering elements inserted between the two rails of a track, essentially flat on top and optionally also with covering elements subsequently laid on the outside, likewise essentially flat covering above, which covering elements are seen in the longitudinal direction of the track depending on Several successive sleepers of the track extend and are arranged at a vertical distance from the sleepers and the sleeper bed of the track above these sleepers and the sleeper bed, the weight of the covering elements inserted between the rails and any loads acting thereon only on the two rails by means of the support recesses engaging lateral recesses of the rails.
• Track coverings of the aforementioned type are often provided in order to form a traffic area that can be traveled or walked on at a rail level in the case of a track or a track system. It can e.g. to act as street crossings or to be traversed by road vehicles and at the same time traversed by tracks in larger production facilities or storage facilities. Track coverings can also be provided, with the appropriate design of the covering elements, to reduce the noise emissions that arise when tracks are traveled by rail vehicles.
• the elastic properties of the track which are largely determined by the sleepers and their bedding, should not be changed or only slightly changed by a track covering. Because the covering elements are arranged at a vertical distance above the sleepers and the sleeper bedding, a disadvantageous influence of the track covering on the elastic behavior of the track is largely avoided.
• the support lugs which engage in the lateral recesses in the rails, which are usually called “lug chambers", are formed laterally on the cover elements.
• the covering elements are provided with recesses which are arranged corresponding to the threshold spacing and leave space for the rail fastening elements , Covering elements prefabricated in series production accordingly require that the sleepers of the track are laid at the same distance in the area of the track covering. This condition is often not met in existing tracks, and in some cases this condition cannot always be taken into account even in the case of new track systems to be built.
• the invention designed according track covering the opening paragraph is characterized in that the covering elements seated on carrying elements which are themselves placed in the emerging direction extending respectively across the intermediate space between successive sleepers and the n istsklötzen of two over a elongated connecting assembled supporting and positio ⁇ are formed, which support and positioning saw blocks in the longitudinal direction of the track have a dimension which corresponds at most to the clear distance between the rail fastenings present on successive sleepers, which support and positioning blocks further have on their sides facing the rails support lugs for engagement in the lateral recesses of the rails, the Supporting and positioning blocks are positioned by a length of the connection provided in the respective support element for the engagement of the support lugs in the adjacent recess of the respectively assigned rail, which is matched to the track dimensions in the threshold direction, and that the covering elements seated on the support elements on the support and positioning blocks of the Support elements are secured against lateral displacement by form engagement and the covering elements inserted between the rails by partially supporting and positioning blocks in the threshold direction Cover it up
• the support elements can be placed in accordance with the actual position of the sleepers of the track above the spaces between successive sleepers, it being unnecessary for the sleepers of the track to be laid equidistantly.
• the positioning of the covering elements is not necessarily tied to the position of the sleepers or to the position of the rail fastening elements located on the sleepers. If the threshold distance varies over the longitudinal extent of the track by an average value, as can be the case if greater tolerances have arisen when laying the sleepers, covering elements with the same longitudinal dimensions can generally be used.
• roofing slabs that are prefabricated with a standardized length can also be shortened in length in a simple manner and an adjustment made in this way Carry out the conditions at the intended installation location.
• the roofing elements designed in accordance with the invention can have a relatively simple shape and can also have a constant cross-section over their entire length, i.e. sections form a profile strand, which enables a particularly simple and cost-saving generation. In this way, covering elements of different lengths can be provided in a very simple manner by means of corresponding separating cuts, and thus can easily correspond to a variety of conditions which result from mutually different threshold distances.
• cover elements are also provided for the covering of the two zone strips adjoining the rails of the track, which are cantilevered and extend in the direction of the threshold above the space between successive sleepers and are each formed from two supporting and positioning blocks joined together via an elongated connection, on which support elements then covering elements are seated.
• the rail-side support and positioning blocks have support lugs and are supported on the rails with these support lugs, which engage in the lateral recesses of the rails; the support and positioning elements located at the end of the support elements remote from the rail are mounted on foundations, preferably these support and positioning blocks arranged away from the rail are secured against displacement in cooperation with the foundations mentioned.
• the roofing elements usually have the form of essentially closed plates, with at most some small openings being provided, which are used, for example, for attaching lifting devices. testify or the like. can serve. However, it is also possible to provide covering elements in the form of gratings if the possibility of a smooth drainage of liquid or particulate material is to be given.
• the covering elements arranged between the rails of the track extend to the flange grooves of the track or limit the inside of the flange grooves and that covering elements arranged on the outside of the rails possibly extend into the immediate vicinity of the rails Avoidance of unwanted openings between successive support and positioning blocks avoided; such openings could adversely appear when driving over the covering with vehicles which have narrow wheels and also when walking on the covering.
• the covering elements together with the supporting elements form a stable structure, in which, in the threshold direction between the supporting and positioning blocks, there are, on the one hand, form-fitting securing elements on the supporting and positioning blocks and, on the other hand, the elongated connection provided between the supporting and positioning blocks is formed below is.
• the support and positioning blocks transfer the weight of this structure consisting of the covering elements and the supporting elements and loads that act on this structure to the rails via their support lugs, the support and positioning blocks on the one hand for the positioning of this structure in the track and on the other hand for ensure the positioning of the covering elements on the supporting elements.
• the material for the covering elements and also for the support and positioning blocks is preferably concrete or a concrete-like composite material made of particulate aggregate and binder. If required, reinforcement can also be provided in these components.
• Suitable binders include both cement and cement with properties similar to their properties, as well as plastics of various types, plastics, such as polyester, being the sole binder or can also serve to modify or supplement a bond that is primarily based on cement or a material similar to cement.
• plastics can also be combined with one another to form a binder and likewise one can combine several substances from the group of cement and cement-like materials to form the binder.
• the particles present in the composite material from which the covering elements are formed consist of lightweight construction material, in particular porous lightweight construction material.
• Favorable materials are, for example, plastic granules, granular slag particles, spherical and fired, blown alumina particles and similar fired natural or artificially produced materials, mixtures of different such particulate materials also being considered.
• Fibrous particles can also form the aggregate alone or together with other particles.
• these elements can, if desired, also be provided with a frame made of metal or plastic.
• the support and positioning blocks can also be made entirely or in part (support lugs) from plastic, both thermoplastics or thermosets and elastomers being considered.
• the use of elastomers offers advantages in terms of shock absorption and also in terms of ease when installing the covering. Furthermore, it is favorable to provide the covering elements and / or the support and positioning blocks with reinforcement. In the latter case, it is advantageous to let the reinforcement extend into the support lugs.
• the joining of the covering elements with the supporting elements is provided with retaining or securing bolts.
• These holding or securing bolts can, for example, be provided with screw threads or be designed as plug bolts.
• the support and positioning blocks of the support elements have undercuts at the points of the assembly with the covering elements, into which correspondingly shaped zones of the covering elements intervene. In this way, the good cohesion mentioned can be achieved in a structurally simple manner and with simple handling even when the covering plates are joined to the supporting elements.
• a strip of soft-elastic material in particular of an elastomer, is inserted at the points where the covering elements are put together with the respective support and positioning blocks between the covering elements and the said blocks.
• an advantageous embodiment of the track covering according to the invention provides that the connections of the support and positioning blocks provided for the individual support elements are formed by at least one rod or plate leading from one of these blocks to the other of these blocks.
• the connections provided for the individual support elements can be realized in such a way with a small space requirement and there is in this way a relatively large amount of space available for a thick-walled, stable construction of the covering elements, which is particularly advantageous for achieving a high load capacity.
• the small space requirement of connections designed as rods in the support elements enables the support elements to remain in the track during later track maintenance work, e.g. with subsequent filling of the track bed.
• the respective rod or plate is designed to be elastically flexible. Forming the rods or plates from fiber-reinforced plastic or from steel allows high strength and good long-term stability to be achieved with little manufacturing effort. It is also advantageous if the bars or plates, forming a reinforcement, extend into the support lugs of the support and positioning blocks.
• a further embodiment of the track covering designed according to the invention which allows the installation of the covering in a track and any expansion of the covering to be carried out with particularly simple handling, is characterized in that the connections provided for the individual supporting elements Bindings of the support and positioning blocks are formed by pairs of half-bars, wherein each half-bar of a pair is connected to the one support and positioning block of a support element and the other half-bar of this pair is connected to the other support and positioning block of this support element and the two half-bars of pair in question are connected at their all blocks ends remote hinged together, the hinge connection on the one hand forms a Fix ein in which the two half rods, flush with one another and on the other hand, an unfolding of the 'two half-rods allows for an angular position.
• This embodiment makes it possible to carry out the installation of the support elements in the track in a particularly simple manner by inserting the support elements into the track in the unfolded angular position of the pairs of half-bars and then pressing the half-bars into the aligned position, the placement of the covering elements on the support elements either after the half-bars are already in the aligned position or the covering elements are placed in the course of pressing the half-bars straight and are joined together with the support elements.
• an embodiment is advantageous, which is characterized in that tooth-like projections are provided on the inner sides of the support and positioning blocks, which, in the case of covering elements placed on the support and positioning blocks of the support elements, are formed in the longitudinal direction of the track in corresponding to these tooth-like projections Intervene on the side surfaces of the covering elements.
• This embodiment also makes it possible to achieve a very stable fit of the covering elements that is secure against lifting off in a simple manner.
• an embodiment in which the installation of the support elements in the track can be accomplished in a particularly simple manner, characterized in that between the lateral recesses the rails and the support lugs provided on the support and positioning blocks and each engaging in the relevant recesses, support profiles made of elastically damping material, in particular of an elastomer, are inserted.
• Fig.l a track, which is provided with an embodiment of a track covering designed according to the invention, in plan view;
• Figure 2 of this track in a section along the line II-II in Fig.l on an enlarged scale compared to Fig.l;
• FIG. 3 shows, on average, the surroundings of the rail on the left in FIG. 2 on a further enlarged scale
• FIG. 9 and 10 show a further embodiment in a representation corresponding to FIG. 2, FIG. 9 showing this track covering in a stage of installation and FIG. 10 showing this track covering in the fully installed state.
• FIG. 9 showing this track covering in a stage of installation
• FIG. 10 showing this track covering in the fully installed state.
• the same details are designated with the same reference numbers in the various figures.
• covering elements 5 are laid between the two rails 2, 3 of the track 4 and covering elements 6 are connected to the outside of these rails 2, 3 laid.
• the covering elements 5, 6 are formed essentially flat on their upper side. It sit covering elements 5, 6 on the support members 14, which he ⁇ stretch in threshold means 15 and are respectively placed across the gap 16 between consecutive sleepers of the track 8.
• the track 4 without covering in section b the track provided with support elements 14 and in section c the track provided with complete covering, ie with covering elements 5, 6 placed on the support elements 14.
• the sleepers 8 of the track 4 are arranged at different distances from one another, as can result in a track construction working with rough tolerances or as a result of special situations in the case of complicatedly configured track sections.
• the support elements 14, which are each placed above the intermediate space 16 between successive sleepers 8, are each formed from two support and positioning blocks 17 joined together via an elongated connection 18 and these support and positioning blocks 17 are seen in the longitudinal direction 7 of the track 4 a dimension 19 which corresponds at most to the clear distance 21 between the rail fastenings 20 present on successive sleepers 8.
• the support and positioning blocks 17 have on their sides facing the rails 2, 3 support lugs 11 for engaging in the lateral recesses 10 of the rails 2, 3 and there are the support and positioning blocks 17 by a length matched to the track dimensions in the threshold direction 15
• the connection 18 provided in the respective support element 14 is positioned for the engagement of the support lugs 11 in the respectively adjacent recess 10 of the respectively assigned rail 2, 3.
• the covering elements 5, 6 are seated on the support and positioning blocks 17 of the supporting elements, and there are the supporting elements 14 with the covering elements 5, 6 sitting thereon at a vertical distance from the sleepers 8 and the sleeper bed 9 of the track above these sleepers and the sleeper bed Arranged, the dead weight of the covering elements 5 and the supporting elements 14 carrying these covering elements 5 and any loads acting only on the two rails 2, 3 by means of the support lugs 11 which engage in the lateral rail recesses 10, so that a self-supporting bridging of the there is space between the two rails 2, 3.
• the covering elements 6, which are laid on the outside of the rails 2, 3 of the track, sit in an analogous manner to the locating elements.
• Packing elements 5 also on support elements 14, the one support and positioning block 17 of these support elements engaging with a support lug 11 in the adjacent rail 2 or 3 and a support or.
• Positioning block 17 is provided, which is mounted on a foundation 23.
• support profiles 12 which consist of an elastically flexible material, in particular an elastomer, are inserted between the lateral recesses 10 of the rails 2, 3 and the support lugs.
• soft elastic strips 13 are inserted between the support and positioning blocks 17 remote from the rail of the support elements carrying the covering elements 6 and the foundations 23.
• the covering elements 5, 6 lie on the upper side of the support and positioning blocks 17 of the supporting elements 14 arranged under the covering elements, a step-like shape engagement protecting the covering elements against lateral displacement with respect to the associated supporting elements.
• the support and positioning blocks 17 of the support elements 14 also have undercuts 31 at the points of assembly with the covering elements 5, 6, into which correspondingly shaped zones 32 of the covering elements 5, 6 engage; as a result, the covering elements 5, 6 are also secured against lifting off from the supporting elements.
• the connections 18 of the support and positioning blocks 17 provided in the support elements 14 are formed by a rod 33 leading from one of the blocks 17 to the other of these blocks. Instead of such a rod, a thin plate could also be provided.
• this rod 33 or a plate provided instead of this is designed to be elastically flexible, which facilitates the joining of the covering elements with the supporting elements, since during assembly, by pushing up the center of the rod 33 or a corresponding plate, the undercuts supporting and Positioning blocks 17 can be pivoted a little in the sense of opening the undercuts, so that the zones 32 of the covering elements corresponding to the undercuts can be easily inserted between the undercuts 31, after which the previously raised center of the rods 33 is released and a firm engagement is formed between the undercuts 31 and the zones 32.
• covering elements 5 it is favorable in covering elements 5 to provide reinforcement 28 and / or reinforcement 29 in covering elements 6 and / or reinforcement 39 in blocks 17.
• reinforcements can also be used in other embodiments, e.g. in the embodiments shown in the other figures.
• the reinforcements can e.g. in the form of bars or grids made of metal or plastic or in the form of fibers. Reinforcements can often be avoided.
• the support and positioning blocks 17 of the support elements are stepped from above on their side facing away from the rail in question, so that a step 27 is created on these blocks 17 by a fold 26 and they are the covering elements 5 , 6 on their edges facing the support and positioning blocks corresponding to the support and positioning blocks 17 in a step-like manner from below and lie on the step 27 formed on the support and positioning blocks 17.
• It is in the 4 shows no undercut and there are the covering elements 5, 6 against lifting upwards by retaining bolts 24, which are provided, for example, with screw threads 25 and which engage in corresponding nut threads or screw-in dowels (not shown) in the blocks 17, against lifting off secured. Plug bolts are a variant of this.
• the resting of the roofing elements 5, 6 on the steps 27 provided on the inside of support and positioning blocks reduces the span of the roofing elements 6, as a result of which they can be subjected to higher loads and / or can be dimensioned more easily for a given load capacity.
• FIG. 5 there is an embodiment similar to FIG. 3, but one at the points where the covering elements 5, 6 are joined together with the respective support and positioning blocks 17 between the covering elements 5, 6 and the said blocks 17
• Strip 36 made of flexible material, in particular an elastomer, is inserted. The assembly of the covering elements with the supporting elements is thereby simplified and the fit of the covering elements on the supporting elements can also be improved by these strips.
• the support and positioning blocks 17 are formed entirely of a plastic, a correspondingly dimensionally stable elastomer being particularly suitable for this.
• the rods 33 forming the connection of the support elements extend into the support lugs 11 of the support and positioning blocks 17.
• the covering elements 5, 6 simply rest on the support and positioning blocks without undercut, the load transfer being on top of the Blocks 17 takes place and lateral friction between the covering elements 5, 6 and the support and positioning blocks 17 in addition to the dead weight of the covering elements 5, 6 secures them against lifting. If required, reinforcement is provided.
• the geometry of the interacting zones of the covering elements 5, 6 and of the support and positioning blocks 17 of the supporting elements 14 carrying these covering elements is selected similar to the embodiment according to FIG. 3, but with the lateral undercuts 31 of the support and positioning blocks 17 then the relevant inner side surfaces of these blocks 17 run freely downwards, which in practice is usually easier to handle when joining the covering elements with the supporting elements, in the course of which the zones 32 of the covering elements 5, 6 come into engagement with the undercuts 31 on the blocks 17, can be achieved.
• the undercuts 31 are semicircular in cross section, which on the one hand improves the stability and durability of the zones 32 corresponding to the undercuts, which are present at the edge of the covering elements 5, 6, and on the other hand also facilitates the workflow when joining the covering elements to the supporting elements.
• the support elements 14, which are assigned to the covering elements 5 to be arranged between the rails 2, 3 of the track, are provided with connections 18 between the support and positioning blocks 17, which are provided by pairs are formed by half bars 33a, 33b.
• a half-bar 33a of a pair is connected to the one support and positioning block of such a support element and the other half-bar 33b of this pair is connected to the other support and positioning block of this support element;
• the two half-rods 33a, 33b of the pair in question are connected to one another in a hinge-like manner at their ends facing away from the support and positioning blocks mentioned, the hinge connection 34 allowing the two half-rods 33a, 33b to be unfolded to an angular position, as shown in FIG.
• the support elements 14 can be inserted very easily between the rails 2, 3 of the track by unfolding them into the angular position shown, and the half-rods 33a, 33b can subsequently be brought into an aligned position by pressing in the direction of arrow 22, as shown in FIG. 10 is shown.
• the hinge connection 34 is designed such that it is in the aligned position of the Half bars, as shown in Fig.10, forms a fixed position.
• the covering element 5 can be joined to the supporting and positioning blocks 17 of the supporting element 14 by depressing the half-bars into the aligned position or after establishing this aligned position become.
• tooth-like projections 37 are provided on the inner sides of the support and positioning blocks 17, which in the case of covering elements 5 placed on the support and positioning blocks of the support elements 14 correspond to these tooth-like projections Projections 37 engage shaped side surfaces 38 of the covering elements 5.
• edges 35 of the covering elements 5, 6, which run transversely to the rails, are advantageously placed in each case running over a supporting element 14, as can be seen from FIG. 1, which results in a good cohesion of successive covering elements, because in each case two adjacent covering elements together on one Sit support element.

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• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Engineering & Computer Science (AREA)
• Road Paving Structures (AREA)
• Magnetic Heads (AREA)
• Railway Tracks (AREA)
• Train Traffic Observation, Control, And Security (AREA)
• Polishing Bodies And Polishing Tools (AREA)
• Floor Finish (AREA)
• Surface Treatment Of Glass Fibres Or Filaments (AREA)
• Superconductors And Manufacturing Methods Therefor (AREA)
• Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
• Ultra Sonic Daignosis Equipment (AREA)
• Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
• Air Bags (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Details Of Aerials (AREA)
• Machines For Laying And Maintaining Railways (AREA)
• Escalators And Moving Walkways (AREA)
• Support Devices For Sliding Doors (AREA)
• Bearings For Parts Moving Linearly (AREA)
• Motor Or Generator Frames (AREA)
• Electron Beam Exposure (AREA)
• Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

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Citations (5)

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• 2001
  • 2001-05-09 AT AT0073901A patent/AT410953B/de not_active IP Right Cessation
• 2002
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  • 2002-03-25 AT AT02706510T patent/ATE276406T1/de active
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