FORMWORK FOR THE CONSTRUCTION OF RAILWAY PLATFORMS

Abstract

Formwork (1) for the construction of railway platforms, comprising: a container (2) in which building material to be shaped and subjected to hardening for the construction of a railway platform can be compacted; at least one fixed crossbeam (3) located at the bottom del container (2); at least one movable crossbeam (4) provided with at least one pair of fastening imprints (5) arranged symmetrically and configured to model the material to form a pair of fastening seats apt to position the rails on the railway platform; placed side by side with the fixed crossbeam (3) and defining therewith an impression surface on which said material can be molded for the construction of said railway platform; said movable crossbeam (4) being rotatable and/or translatable with respect to said fixed crossbeam (3), the configuration being such that different rotations and/or translations correspond to different positions in the container (2) of the fastening imprints (5) and different impression surfaces.

Claims

1. Formwork for the construction of railway platforms, comprising a container in which building material to be shaped and subjected to hardening for the construction of a railway platform can be compacted; at least one fixed crossbeam located at the bottom di said container; at least one movable crossbeam provided with at least one pair of fastening imprints arranged symmetrically and configured to model said material to form a pair of fastening seats apt to position the rails on said railway platform; placed side by side with said fixed crossbeam and defining therewith an impression surface on which said material can be molded for the construction of said railway platform; said movable crossbeam being rotatable and/or translatable with respect to said fixed crossbeam, the configuration being such that different rotation and/or translations correspond to different positions in the container of the fastening imprints and different impression surfaces.

2. Formwork according to claim 1, characterized in that comprises moving means associated with said movable crossbeam configured to rotate said movable crossbeam around a center of rotation and/or to translate said movable crossbeam along a radial direction with respect to the center of rotation.

3. Formwork according to claim 1, characterized in that said moving means comprises at least one rotation shaft connected to said movable crossbeam at said center of rotation, the configuration being such that said rotation shaft draws said movable crossbeam in rotary motion around an axis that is substantially orthogonal and passing through said center of rotation.

4. Formwork according to claim 1, characterized in that said moving means comprises at least one guide element which extends along a radial direction passing through said center of rotation, associated with said movable crossbeam, the configuration being such that said movable crossbeam can slide along said radial direction.

5. Formwork according to claim 4, characterized in that said guide element is connected to said rotation shaft, the configuration being such that said guide element can rotate around said axis.

6. Formwork according to claim 1, characterized in that said guide element is interposed between said rotation shaft and said movable crossbeam.

7. Formwork according to claim 1-claim 1, characterized in that at least one of said guide element and said movable crossbeam comprises a prismatic portion, with the other of said guide element and said movable crossbeam which comprises a prismatic seat which extends along said radial direction, said prismatic portion and said prismatic seat being configured to form a prismatic coupling in which said prismatic portion can slide in said prismatic seat.

8. Formwork according to claim 1, characterized in that said moving means comprises a control system operatively connected to said movable crossbeam and configured for controlling the rotation and translation of said movable crossbeam.

9. Formwork according to claim 1, characterized in that comprises a plurality of fixed crossbeams and a plurality of movable crossbeams arranged side by side with said fixed crossbeams and in an alternating manner, defining two parallel rows of fastening imprints arranged along respective development directions (Da) and.

10. Formwork according to claim 1 claim 1, characterized in that said movable crossbeams can be moved independently of each other, the configuration being such that said development directions and can increase/decrease the radius of curvature as a function of the rotation/translation of each of said movable crossbeams with respect to a respective center of rotation and to a respective radial direction.

11. Process for the construction of a railway platform comprising the following steps:—providing a formwork according to claim 1; configuring said formwork by means of rotations and/or translations of one or more movable crossbeams apt to define an impression surface compatible with a railway track; pouring building material in liquid phase in said configured formwork, said building material adapting to the impression surface defined in the previous step; allowing said poured building material to harden until a railway platform is obtained whose surface follows the impression surface of the formwork.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Reference will be made to the figures of the engaged drawings, in which:

[0019] FIG. 1 shows a plan view of the formwork according to the invention;

[0020] FIG. 2 shows a side sectional view of the formwork according to the invention;

[0021] FIG. 3 shows a side sectional view of a detail of the formwork according to the invention;

[0022] FIG. 4 shows a plan view of a detail of the formwork according to the invention;

[0023] FIG. 5 shows a front sectional view of the formwork according to the invention.

[0024] The thicknesses and curvatures shown within the figures above introduced are intended as purely illustrative, they are generally magnified and not necessarily shown in proportion.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0025] Various embodiments and variants of the invention will be described hereinafter, and with reference to the figures above introduced.

[0026] Similar components are denoted in the various figures by the same numerical reference.

[0027] In the following detailed description, further embodiments and variants with respect to embodiments and variants already treated in the same description will be illustrated limitedly referring to the differences with what has already been disclosed.

[0028] Furthermore, the different embodiments and variants described hereinafter can be used in combination, where compatible.

[0029] With initial reference to FIG. 1, a formwork for the construction of railway platforms according to an embodiment of the invention is generally denoted by 1.

[0030] Formwork 1 comprises a container 2 in which building material to be shaped can be compacted and subjected to hardening for the construction of a railway platform.

[0031] The container 2 can be of the box-type having a bottom 8 and side walls surrounding the bottom defining a volume that can be filled with building material.

[0032] Building materials that can be used are typically cement conglomerates such as concrete, although alternative materials that can be used for the construction of building products, known in the state of the art, are not excluded.

[0033] The formwork 1 comprises at least one fixed crossbeam 3 placed at the bottom 8 of the container 2.

[0034] With particular reference to the figures, the fixed crossbeam 3 can comprise a surface portion 3a and a support portion 3b.

[0035] The surface portion 3a can be flat, although different conformations as a function of the final shape of the platform to be obtained are not excluded.

[0036] The supporting portion 3b is fixed to the bottom 8 and supports the surface portion 3a, maintaining the same raised from the bottom 8.

[0037] The portion 3b is usefully of the type of an “H” beam, although technically equivalent solutions are not excluded.

[0038] Different embodiments are not excluded in which the fixed crossbeam 3 has a different conformation from that illustrated.

[0039] Furthermore, formwork 1 comprise at least one movable crossbeam 4.

[0040] The movable crossbeam 4 is provided with at least one pair of fastening imprints 5 arranged symmetrically and configured to shape the material so as to form a pair of fastening seats apt to position the tracks on the railway platform.

[0041] When the building material is compacted in the formwork, it fills the available space, being molded accordingly. The material filling the space defined by the fastening imprints 5, once hardening is complete, will constitute the fastening seats of the railway platform on which the tracks will be positioned. The orientation of the starting footprints 5, therefore, defines the orientation of the fastening seats that must be compatible with the path following the tracks.

[0042] The movable crossbeam 4 is placed side by side with the fixed crossbeam 3 and defines therewith an impression surface on which the material for the realization of the railway platform can be molded.

[0043] The movable crossbeam 4 and the fixed crossbeam 3, therefore, define a surface, i.e. the impression surface, whose shape will be functional to model the building material within the formwork 1, thereby resulting in the final platform having a conformation that will trace the impression surface.

[0044] Advantageously, the movable crossbeam 4 is rotatable and/or translatable compared to the fixed crossbeam 3. The configuration is such that different rotations and/or translations correspond to different positioning of the fastening imprints 5 in container 2 and, therefore, different impression surfaces.

[0045] This feature allows to easily create platforms with fastening seats whose arrangement can be selected in advance by simply rotating/translating the fastening imprints 5. This technical effect is particularly advantageous in the context of the construction of railway infrastructures whose path has variable radii of curvature and whose tracks, therefore, must be placed along curved directions.

[0046] Usefully, the movable crossbeam 4 is approached to the surface portion 3a so as to realize a continuous surface, i.e. without holes or openings that may cause the building material to pour under the crosspieces 3, 4.

[0047] Preferably, the formwork 1 can comprise a plurality of fixed crossbeams 3 and a plurality of movable crossbeams 4.

[0048] The movable crossbeams 4 can be placed side by side with fixed crossbeams 3 in an alternating manner, i.e. defining fixed crossbeam 3—movable crossbeam 4 alternations.

[0049] This arrangement allows to define two parallel files of fastening imprints 5a, 5b arranged along respective development directions Da and Db.

[0050] Each movable crossbeam 4 can rotate/translate independently of each other, such that different impression surfaces, with different Da and Db directions, can be defined.

[0051] In particular, the movable crossbeams 4 can be oriented in such a way as to obtain Da and Db directions as compatible as possible with the path of the railway infrastructure. The railway platforms that will be obtained will have fastening seats suitable for the layout of the tracks, without running tolerances being consumed.

[0052] Referring to a single movable crossbeam 4, formwork 1 comprises moving means 6, 7 associated with movable crossbeam 4.

[0053] In particular, the moving means 6, 7 are configured to rotate the movable crossbeam 4 around a centre of rotation C.

[0054] Furthermore, the moving means 6, 7 is configured to translate the movable crossbeam 4 along a radial direction with respect to the centre of rotation C.

[0055] The moving means 6, 7 can translate and rotate the movable crossbeam, simultaneously or according to alternating sequences of rotations and translations.

[0056] Moving means 6, 7 may comprise at least one rotation shaft 6 connected to the movable crossbeam at the centre of rotation C.

[0057] The configuration is such that the rotation shaft 6 draws the movable crossbeam 4 in rotary motion around a substantially orthogonal axis A and passing through the centre of rotation C.

[0058] Preferably, the rotation of the movable crossbeam 4 takes place on a plane substantially parallel to the bottom 8 of the formwork 1, although rotations on different planes are not excluded, on condition that they are apt to properly position the fastening seats 5a and 5b.

[0059] Advantageously, the moving means 6, 7 comprises at least one guide element 7 which extends along a radial direction R and is associated with the movable crossbeam 4.

[0060] Usefully, the radial direction R can pass through the centre of rotation C.

[0061] The configuration is such that the movable crossbeam 4 can slide along the radial direction R.

[0062] Usefully, the guide element 7 can be connected to the rotation shaft 6, the configuration being such that the guide element 7 can rotate around the axis A.

[0063] Thereby, the rotation shaft 6 can draw the guide element 7 in rotary motion, by rotating the radial direction R with respect to axis A.

[0064] Advantageously, the guide element 7 can be interposed between the rotation shaft 6 and the movable crossbeam 4.

[0065] In particular, the guide element 7 can be drawn in rotary motion by shaft 6 and, in turn, draw the movable crossbeam 4 in rotary motion.

[0066] Usefully, at least one between the guide element 7 and the movable crossbeam 4 can comprise a prismatic portion 9, with the other between the guide element 7 and the movable crossbeam 4 that can comprise a prismatic seat 10 which can extend along the radial direction R.

[0067] The prismatic portion 9 and the prismatic seat 10 can be configured to form a prismatic coupling in which the portion 9 can slide into the seat 10.

[0068] With reference to FIG. 3, the prismatic portion 9 can have a trapezoid-shaped section whose oblique sides diverge in an upwards direction. On the other hand, the prismatic seat 10 can be of the type of a groove whose section is complementary to the prismatic portion 9.

[0069] Solutions providing different conformations are not excluded, on condition that they ensure a prismatic coupling in which the portion 9 can slide in the seat 10 along the longitudinal direction of the seat itself.

[0070] As previously described, formwork 1 comprises a plurality of movable crossbeams 4 that can be moved independently of each other.

[0071] In particular, each movable crossbeam 4 is rotatable around a centre of rotation C and/or translatable with respect to a respective radial direction R.

[0072] The configuration can be such that the development directions Da and Db can increase/decrease the radius of curvature as a function of the rotation/translation of each of the movable crossbeams 4 with respect to its centre of rotation C and/or to the respective radial direction R.

[0073] Thereby, on the basis of the project database comprising also the course of the infrastructure path, a user can rotate and/or translate the movable crossbeams 4 at will until the fastening imprints 5 are arranged along directions Da and Db compatible with the track itself.

[0074] Advantageously, the moving means 6, 7 comprise a control system, for the sake of simplicity not illustrated in the figures, configured for controlling the rotation and the translation of the movable crossbeam 4.

[0075] In particular, the control system can comprise at least one interface unit and one or more movement units operatively connected to the same interface unit.

[0076] The interface unit is configured to allow a user to control the rotation and translation of the mobile crossbeam(s) 4.

[0077] For example, by means of the interface unit the user can enter the design parameters relating to the curvature of the path followed by the tracks, thus setting the position that each movable crossbeam 4 is to assume.

[0078] The control system can be configured for both manual and power-assisted operation.

[0079] Usefully, the control system can comprise at least one electromechanical movement unit operatively connected to the movable crossbeam 4.

[0080] In particular, the electromechanical movement unit can be equipped with electromechanical motor means configured to move the movable crossbeam 4.

[0081] In particular, the electromechanical movement unit is configured to activate, control and deactivate the rotation of the shaft 6 and the translation of the element 7 guides in order to position the movable crossbeam 4 in a desired position.

[0082] Preferably, the control system can comprise at least one hydraulic movement unit operatively connected to the movable crossbeam 4 and configured to move the latter.

[0083] The hydraulic movement unit can be an alternative for the electromechanical movement unit or can operate in combination with the latter.

[0084] Advantageously, the control system comprises positioning means configured to detect the position of the movable crossbeam 4.

[0085] The positioning means can comprise various type of position encoders and/or detection sensors, or precision topographical instrumentation.

[0086] A process for the construction of a railway platform can comprise the following steps.

[0087] In a first step, a formwork 1 similar to that previously described is provided.

[0088] Subsequently the formwork is configured through rotations and/or translations apt to define an impression surface compatible with a railway track.

[0089] In particular, the translations and rotations relate to the movable crossbeams 4.

[0090] The movable crossbeams 4 are rotated and translated until the same are drawn to a desired position, based on design conditions.

[0091] More specifically, a user can enter design data relating to the railway track and, therefore, set the Da and Db directions compatible with the path.

[0092] The control system implements the above rotations and translations until the movable crossbeams 4 are positioned in such a way that the directions Da and Db are traced by the fastening imprints 5.

[0093] Subsequently, the process provides to pour building material in the liquid phase into the configured formwork.

[0094] The building material can be concrete, although other materials suitable for the purpose and having hardening properties are not excluded.

[0095] The building material in the liquid phase fills the volume defined by formwork 1 and adapts to the impression surface defined in the previous step, assuming the shape thereof.

[0096] Subsequently, the poured building material is allowed to harden until a railway platform is obtained, whose surface follows the impression surface of the formwork 1.

[0097] The present invention has been hitherto described with reference to preferred embodiments. It should be understood that other embodiments may exist that pertain to the same inventive core, as defined by the scope of the claims set forth below.