EP3663466A1 - Mauerkrone für bahnsteig mit vertiefter unterseite - Google Patents

Mauerkrone für bahnsteig mit vertiefter unterseite Download PDF

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Publication number
EP3663466A1
EP3663466A1 EP19188690.2A EP19188690A EP3663466A1 EP 3663466 A1 EP3663466 A1 EP 3663466A1 EP 19188690 A EP19188690 A EP 19188690A EP 3663466 A1 EP3663466 A1 EP 3663466A1
Authority
EP
European Patent Office
Prior art keywords
coping unit
coping
recesses
unit
tactile plate
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.)
Withdrawn
Application number
EP19188690.2A
Other languages
English (en)
French (fr)
Inventor
Ivan Richard Groom
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.)
RG Carter Civil Engineering Ltd
Original Assignee
RG Carter Civil Engineering Ltd
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 RG Carter Civil Engineering Ltd filed Critical RG Carter Civil Engineering Ltd
Publication of EP3663466A1 publication Critical patent/EP3663466A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
    • B61B1/02—General arrangement of stations and platforms including protection devices for the passengers

Definitions

  • the invention relates to an improved coping unit and a method of production thereof, the coping unit being suitable for use on raised platforms such as railway platforms.
  • Raised platforms such as those found at railway stations traditionally incorporate a series of mutually abutting rectangular coping units extending along the outer edge to delineate the platform proximal to the track.
  • the coping units are secured to the platform structure with a cement-based mortar bedding and the front end of a unit partially extends away from the platform to form a projecting lip.
  • the projecting lip acts to at least partially bridge the gap between the platform and the trains.
  • coping units such as those described, have a number of physical properties and tolerances that they must meet in order to pass safety regulations.
  • the current invention seeks to at least partially overcome the above limitations, providing a lighter weight coping unit that retains the longevity of a current concrete unit but is much easier to transport and install, and is less susceptible to movement.
  • the invention provides a coping unit suitable for use on a raised platform comprising an under-face incorporating a plurality of regular, preferably non-continuous recesses.
  • This configuration is highly beneficial because the recesses reduce the volume of material required to manufacture the coping unit and therefore decrease the weight of the coping unit.
  • the recesses increase the surface area of contact between the coping unit and a bonding adhesive (usually a cement-based bedding mortar), used to secure the coping unit in position and therefore increase the strength of the attachment.
  • the recesses provide a surface against which the concrete setting within the recesses can abut, reducing the possibility of the coping unit slipping parallel to the surface of the platform.
  • the recesses provide an area for the bonding adhesive to push into during installation making the coping unit easier to install.
  • the sides of the recesses are at an angle of between about 15 and 45 degrees. This is beneficial because the angled sides of the recesses assist in releasing the units from the mould, during casting. In addition, the angled sides reduce the possibility of the pinnacles of the sides shearing off, producing a stronger attachment.
  • the recesses tesselate to form a regular pattern. This is beneficial because the tesselation enables more recesses to be included within a coping unit, and therefore reduces the weight, whilst not impairing the structural strength, of the unit.
  • the invention provides a method of constructing a coping unit suitable for use on a raised platform, the method being characterised by the step of bringing together an initially separate tactile plate and the previously cast body of the unit before the body has fully set.
  • This is highly beneficial because casting the tactile plate directly into the coping unit removes the need to separately affix it. This saves time in manufacture and also removes the possibility of human error and lifetime issues with tactile plate adhesion and maintenance.
  • by casting the tactile plate into the coping unit you can ensure there is no lip or ridge between the tactile plate and the top of the coping unit, which may be a tripping hazard.
  • the method of the second aspect can be used to produce the coping unit of the first broad independent aspect.
  • the invention discloses a lighter weight coping unit, with bottom surface adapted to incorporate a plurality of regularly arrayed recesses.
  • the recesses reduce the volume of concrete and therefore the unit mass (compared to flat bottomed coping units) and also providing greater adhesion (greater surface area and bedding key) therefore improving fixity to the substrate. Furthermore, the decreased weight of the units makes them easier to transport and install and less reliant on the competency of the substrate.
  • coping unit refers to the unit used to delineate the edge of a raised platform such as at railway stations.
  • the coping unit as formed from a standard concrete aggregate mix such as those known in the art.
  • the invention is envisaged to function with a range of concrete mixes to provide variable physical properties as required.
  • the coping unit may be formed of a lightweight or high strength concrete mix to further enhance the features of the coping unit.
  • the invention is not limited to concrete and in an embodiment of the invention the coping unit is made from one of slate, granite, marble, sandstone, ceramic, glass, earthenware, rubber, metal or plastics.
  • tactile plate refers to a region of the coping unit with a regular or irregular, pattern of raised or indented relief suitable for providing a tactile or audible indication that a user is near the edge of the raised platform.
  • Such units are required due to statutory and safety regulations and can be integrally formed with the coping unit, in fixed attachment with the unit or independently mounted to the platform.
  • 'top', 'bottom', 'front', 'back' and 'sides' are defined with respect to the orientation of the coping unit in use, with the front of the coping unit considered as facing away from the platform.
  • Figure 1 shows a first embodiment of a coping unit 10 in perspective view.
  • the coping unit 10 is generally in the form of a substantially rectangular slab, with a planar top 14, a bottom 16 and sides 18 and 20 respectively extending therebetween.
  • a rounded lip 22 curves from the top 14 to the bottom 16, thereby forming an upper edge.
  • the lip 22 is coated in a coloured paint to improve the lips' visibility and assist users in identifying the edge of the platform.
  • the lip 22 is coated in a chlorinated rubber resin paint.
  • the tactile plate 12 is formed from a suitable fibre enforced laminate, plastic or hard rubber material.
  • the tactile plate is coated in a rough finishing material to increase the coefficient of friction and reduce the possibility of a person's foot slipping thereon.
  • the coping unit 10 does not incorporate a tactile plate 12.
  • the coping unit has overall length dimensions of between around 1000mm to 1400mm, of between around 1100mm to around 1300mm, of between about 1150mm to 1200mm.
  • the coping unit has width dimensions of between around 800mm to 1050mm, of between around 850mm to around 1000mm, of between around 900mm to around 950mm.
  • the coping unit has depth dimensions of between around 80mm to around 110mm, of between around 90mm to around 105mm, of between around 95mm to around 100mm.
  • the coping unit has length dimensions of between around 600mm to around 900mm.
  • Figures 2a-c show a first embodiment of a coping unit 10 from multiple side views.
  • Figure 2a shows the bottom 16 of the coping unit 10, with the internal structure represented by dashed lines.
  • the bottom 16 incorporates a plurality of recesses 30 tessellating to form a regular pattern.
  • the coping unit 10 incorporates sixteen recesses 30 in a regular four by four grid.
  • the coping unit 10 incorporates recesses 30 in one of: a five by five grid pattern, a six by six grid pattern, a three by four grid pattern or a three by five grid pattern.
  • each recess 30 is shaped as a pyramidal frustum, with a square outer edge 32 in the plane of the bottom 16 of the coping unit 10 and a smaller square base 34 at the bottom of the recess 30.
  • the outer edge 32 and the base 34 are one of; rectangular, pentagonal, hexagonal, heptagonal or any suitable non-continuous geometric shape.
  • the sides 36 of the recess 30, adjoining the outer edge 32 to the base 34 are sloped to form a bevel.
  • the bevelled sides 36 are between 45 and 15 degrees from vertical.
  • the bevelled sides 36 are between 35 and 25 degrees from vertical.
  • the sides 36 are bevelled at an angle of 30 degrees.
  • the base 34 of the recess 30 is centred within the outer edge 32 such that each bevelled side 36 has an identical length and angle of slope.
  • the base 34 of the recesses 30, is offset within the outer edge 32 such that at least one of the bevelled sides 36 has a steeper angle than the others.
  • the outer edges 32 of the recesses 30 have a width dimension of between about 150mm to about 190mm, of between about 160mm to about 180mm.
  • the base 34 of the recesses 30 has a width dimension of between about 90mm to about 130mm, of between about 100mm to about 120mm, of between about 110mm to about 115mm.
  • the recesses 30 have a depth of between about 40mm to about 60mm. In a further preferred embodiment, the recesses have a depth of about 50mm.
  • the recesses 30 have multiple positive effects on the functioning of the coping unit 10.
  • an adhesive usually a cement-based mortar bed
  • This mix adheres the coping unit to the substrate surface to which it is secured, and pushes up into the recess 30 before setting and fixing the coping unit 10 in place.
  • the recesses 30 increase the surface area of contact between the coping unit 10 and the adhesive mix and thereby increase the strength of the attachment of the coping unit to the substrate.
  • the bevelled sides 36 of the recesses 30 provide a surface against which the bedding adhesive within the recesses 30 can abut, reducing the possibility of the coping moving laterally parallel to the surface of the platform.
  • the angle of the bevelled sides 36 reduces the chance of the bevelled sides 36 shearing due to lateral forces, further strengthening the attachment of the coping unit to the platform.
  • the increased surface area of the coping unit bottom provides a greater bond with the bedding adhesive to resist vertical (uplift) movement of the coping unit.
  • the recesses 30 in the coping unit 10 reduce the overall weight of the unit by reducing the volume of concrete used in its formation. This results in simplifying transportation and installation, reducing associated lifting and handling issues. This reduction in weight and ease of transportation and installation greatly improves the safety associated with the construction of platforms such as those described.
  • a mesh 50 of vertically and horizontally extending resilient fibres is set within the coping unit 10.
  • the mesh 50 is a steel mesh welded together at overlap junctions 51.
  • the fibres 52 extend within the gaps between the recesses 30 where the concrete is deepest and therefore has the greatest strength.
  • Figures 3a and 3b show the first embodiment of a tactile plate 12 from the top and from the end respectively.
  • the tactile plate incorporates a number of raised or indented reliefs to provide a standard and regulatory compliant tactile surface as required to warn pedestrians they are nearing the edge of the platform. In some cases, such as when travelling with a wheeled device such as a suitcase, the raised blisters provide an audible indication that the user is nearing the edge of the platform.
  • the tactile plate 12 incorporates a plurality of raised nipples 40 arrayed in a regular pattern.
  • a plurality of threaded anchors 26 are integrally formed with the tactile plate 12.
  • the threaded anchors 26 are secured to the tactile plate and extend below the tactile plate 12 into the coping unit 10 during concrete casting.
  • the threaded anchors 26 function to secure the tactile plate 12 to the coping unit 10 but also allow for the subsequent unscrewing and removal of the tactile plate 12 for future replacement.
  • the tactile plate 12 incorporates ten threaded anchors 26 disposed around the perimeter.
  • the threaded anchors 26 are irregularly disposed along the width of the tactile plate 12 such that they do not coincide with tactile blisters but arranged for ease of future replacement (best shown in Figure 3c ).
  • the tactile plate incorporates 10 regularly spaced threaded anchors 26 around the perimeter of the tactile plate 12.
  • the tactile plate 12 has, 4, 6, 8 or 12 threaded anchors.
  • Figure 3c shows the tactile plate 12 incorporated in the coping unit 10.
  • the tactile plate 12 is monolithically set into the concrete before it has set. This has many benefits such as removing the need to cast in a cavity in the top of the coping unit which can then house the tactile plate. This would need to be separately attached, increasing the time of production and introducing another stage of potential human error.
  • by casting the tactile plate 12 directly into the wet concrete it ensures that the upper surface of the tactile plate 12 is flush with the top 14 of the coping unit 10, and therefore reduces the possibility of maintenance and/or health & safety issues with an exposed ridge.
  • the method of production includes the stages of, adding the tactile plate 12 to the mould prior to or during the addition of the liquid concrete mix.
  • silicone inserts are placed within the main concrete mould subsequently to pouring the liquid concrete mix to create the recesses 30.
  • an acid etch is applied to the top 14 of the coping unit 10. The acid wash removes the surface layer of the coping unit 10 exposing the aggregate. This increases the coefficient of friction and reducing the possibility of an end user slipping.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)
EP19188690.2A 2018-07-27 2019-07-26 Mauerkrone für bahnsteig mit vertiefter unterseite Withdrawn EP3663466A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1812318.2A GB2575976B (en) 2018-07-27 2018-07-27 Railway platform coping unit with recessed underside.

Publications (1)

Publication Number Publication Date
EP3663466A1 true EP3663466A1 (de) 2020-06-10

Family

ID=63518262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19188690.2A Withdrawn EP3663466A1 (de) 2018-07-27 2019-07-26 Mauerkrone für bahnsteig mit vertiefter unterseite

Country Status (2)

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EP (1) EP3663466A1 (de)
GB (1) GB2575976B (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE552514A (de) *
NL8402296A (nl) * 1984-07-19 1986-02-17 Ballast Nedam Groep N V En Bal Grondplaat, werkwijze voor het leggen van een grondplaat en werkwijze voor het instellen van het niveau van een grondplaat.
JPH07329771A (ja) * 1994-06-09 1995-12-19 Miyasaka Gomme Kk プラットホームのステップ構造及びこれに用いるステップ材
GB2490722A (en) * 2011-05-13 2012-11-14 Colt Ind Services Ltd Edging product for raised platforms incorporating a tactile surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0382663A (ja) * 1989-08-25 1991-04-08 Kakegawa Tokushu Concrete Kogyo Kk プラットホーム嵩上げ工法
GB2565417B (en) * 2017-06-14 2021-09-29 Pipex Ltd Improvements in or relating to railway platforms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE552514A (de) *
NL8402296A (nl) * 1984-07-19 1986-02-17 Ballast Nedam Groep N V En Bal Grondplaat, werkwijze voor het leggen van een grondplaat en werkwijze voor het instellen van het niveau van een grondplaat.
JPH07329771A (ja) * 1994-06-09 1995-12-19 Miyasaka Gomme Kk プラットホームのステップ構造及びこれに用いるステップ材
GB2490722A (en) * 2011-05-13 2012-11-14 Colt Ind Services Ltd Edging product for raised platforms incorporating a tactile surface

Also Published As

Publication number Publication date
GB2575976A (en) 2020-02-05
GB2575976B (en) 2022-04-06
GB201812318D0 (en) 2018-09-12

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