Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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FORMWORK SEGMENT
OBJECT
[0001] The present invention relates to a formwork segment for the
construction of a
continuous carriageway for railway tracks.
STATE OF THE ART
[0002] Railway networks shaped like a compact concrete carriageway are known
to be
made with multiple carriageway segments arranged one after the other.
[0003] The carriageway segments are constructed on site using the previous
assembly
of a formwork system, which has to bear the pressure of fresh concrete,
guarantee
termination of the clean segment, and provide straight surfaces between
adjacent
carriageway segments.
[0004] The formwork systems are formed by boards of stable materials, which
cover
the entire width of individual carriageway segments, where both the assembly
and
removal of the formwork after the concreting to leave the carriageway free for
railway
tracks. Moreover, installing and removing the formwork is frequently
associated with
difficulties and partial destruction of the formwork material, in particular
when the
roots are already assembled over the carriageway segments.
SUMMARY
[0005] The present invention tries to resolve one or more disadvantages shown
above
using a formwork carriageway segment for railway tracks as defined in the
claims.
[0006] The formwork segment is a formwork element that is integrally connected
to a
carriageway segment of railway that remains permanently on the outside of the
carriageway segment. As such, the formwork segment includes a carriageway
segment,
in which a material has been poured to form an integral and monolithic joint,
i.e., a
single element where the formwork segment is non-demouldable from the
carriageway segment.
[0007] The formwork segment is configured to form a hollow space to be filled
with a
poured bearing material bound hydraulically, concrete, asphalt, composite or
similar
material that railway tracks bear. As such, the formwork segment presents an
essentially rectangular transversal section.
[0008] The formwork segment comprises at least one projection as ribbing or
generatrix at the outer face of the hollow space of the formwork segment to
facilitate
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transmission of tensions between the poured material and the formwork segment,
preventing relative slipping between both of them.
[0009] The projection is of rectilinear polygon type in the longitudinal
and/or
transversal direction of the formwork segment and has a negative dovetail type
outgoing core that is a non-demouldable formwork segment.
[00010]The formwork segment is configured to receive an anti-slip material of
type
sand coated with resin, on which the fresh poured material is emptied, within
the
hollow space of the formwork segment.
[00011]The formwork segment is configured to provide multiple concave or
convex
crimps distributed at this outer face to prevent relative slipping between the
poured
material and the formwork segment, increasing the friction between the poured
material and the formwork segment. In summary, the formwork segment enters
into
the slab of the poured material or vice versa to increase the adherence
between both.
[00012]The formwork segment is adapted to bear the pressure of the poured
material
within the hollow space of the formwork segment and subsequently, of the
poured
material hardened by curing or setting.
[00013] In addition, the formwork segment is configured to be transported
empty or
filled with poured material up to its working position above a foundation or
continuous
base plate of a track system.
[00014]The formwork segment is configured to provide multiple bumps at its
lower
outer face as figures jutting out or projected beyond the surface of the lower
outer
face distributed at this lower outer face to prevent relative slipping between
the
formwork segment and the foundation, increasing the friction between the
formwork
segment and the foundation. In summary, the formwork segment enters into the
foundation to obtain an anchoring effect by increasing the adherence between
the
formwork segment and the foundation.
[00015]According to one variant, the foundation includes at least one
insertion beyond
the surface and the foundation at a predetermined height to enter into a
hollow
deformation including the projection so as to receive the insert of the
foundation,
providing a similar anchoring effect between the formwork segment and the
foundation.
[00016]The formwork segment is configured to receive an elastic material
within the
hollow space of the formwork segment in the shape of a blanket of elastomeric
type of
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material to control vibrations and noise generated by the movement of railway
vehicles on track systems.
[00017]The formwork segment is configured to be installed in its working
position,
directly supported above the foundation or directly supported above an elastic
material of an elastomeric type of material, which is directly supported above
the
foundation with the objective of increasing the elasticity between the
foundation and
the formwork segment and decreasing the dynamic loads when railway vehicles
pass.
[00018]The formwork segment is configured like a pre-fabricated part, which
achieves
a bench of continuous integral vehicular action by juxtaposing a big number of
formwork segments, making some formwork segments bump into other formwork
segments; and joining the segments among themselves.
[00019]The use of pre-fabricated parts facilitates repairs and replacement of
a
formwork segment damaged by wear and tear or any other condition. As such, the
formwork segment minimizes costs arising from railway maintenance and
conservation
operations.
[00020]The formwork segment includes a number of hollows or spaces, which can
receive multiple points of track support for assembly and fastening of two
tracks
running parallel to each other. The points of support are projected beyond the
surface
of the slab of the poured material at a predetermined height.
[00021]The formwork segment is also configured for embedding of multiple
points of
track support for assembly and fastening of two tracks running parallel to
each other
within the poured material. As such, the points of support of the tracks must
be routed
individually or like sleepers within the formwork segment before emptying the
poured
material within the hollow space of the formwork segment.
[00022]The formwork segment is configured to provide two rows of continuous
parallel hollows to the longitudinal axis of the formwork segment for
embedding and
fastening of two tracks running parallel to each other within the slab of the
poured
material. The tracks previously to be embedded in the formwork segment are
cased
with elastic material that envelops the tracks and gives elastic properties to
buffer the
vibrations and control the noise generated by the movement of railway
vehicles. The
elastic material is installed within the continuous hollow of the slab of the
poured
material.
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[00023]The formwork segment is made from a material composed of material of
reinforced polymer fibre type, thermoplastic, or similar materials.
BRIEF DESCRIPTION OF THE FIGURES
[00024]A more detailed explanation of the system in accordance with
embodiments of
the invention is given in the below description based on the enclosed figures,
in which:
[00025]Figure 1 shows a perspective view of a formwork segment without filling
poured material; the formwork segment has an essentially rectangular
transversal
section,
[00026]Figure 2 shows a perspective view of the formwork segment with two rows
of
empty hollows to receive points of track support for assembly and fastening of
two
tracks running parallel to each other; the lower outer face of the formwork
segment is
assembled in physical contact with a blanket of elastic material,
[00027]Figure 3 shows a perspective view of a formwork segment with two rows
of
empty hollows receiving points of track support, to which two railway tracks
are
assembled and fastened, with the formwork segment assembled in physical
contact
with a blanket of elastic material,
[00028]Figure 4 shows a perspective view of the formwork segment with two rows
of
empty hollows receiving points of track support, to which two railway tracks
are
assembled and fastened, with the formwork segment assembled in physical
contact
with the blanket of elastic material, and where the points of support are
projected
beyond the surface of the slab of the poured material at a predetermined
height, and
[00029]Figure 5 shows a perspective view of a continuous carriageway of
railway
tracks including multiple formwork segments juxtaposed, making some formwork
segments bump into other formwork segments.
DESCRIPTION
[00030]Now, with respect to figures 1, 4 and 5, where a formwork segment 11 is
shown, which is a formwork element that will remain integrally connected to a
carriageway segment 41 of railway, i.e., the formwork segment 11 that remains
permanently on the outside of the carriageway segment 41. As such, carriageway
segment 41 comprises a formwork segment 11, in which a material has been
poured to
form an integral and monolithic joint, where the formwork segment 11 is non-
demouldable from the carriageway segment 41. Formwork segment 11 has an
essentially rectangular transversal section.
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[00031]Formwork segment 11 forms a hollow space 12 to be filled with a poured
bearing material of binding material type, capable of entering into the
composition of a
poured slab of the poured material bound hydraulically, concrete, asphalt,
composite
or similar material that railway tracks 31 bear.
5 [00032]Formwork segment 11 comprises at least one projection 13 as
ribbing or
generatrix at the outer face of the hollow space 12 of formwork segment 11 to
facilitate transmission of tensions between the poured material and formwork
segment 11, preventing relative slipping between both of them. In addition,
projection
13 is a hollow conduit that can receive technical equipment, fluid
distribution pipes,
cables and other type of material related to maintenance, help, control and
management of the movement of railway vehicles over railways of track systems,
or
other type of civil infrastructure, inside.
[00033]Projection 13 is of rectilinear polygon type in the longitudinal
direction of
formwork segment 11 and has a negative dovetail type such that formwork
segment 11
is non-demouldable.
[00034]Formwork segment 11 is configured to receive an anti-slip material of
type
sand coated with resin, on which the fresh poured material is emptied, within
the
hollow space 12 of the formwork segment.
[00035]Formwork segment 11 provides a plurality of dents or bumps at its outer
face
14 of the hollow space 12 of the formwork segment 11 as figures jutting out
projected
beyond lower outer face 12 of the hollow space 11, being distributed at outer
face 14
to prevent relative slipping between the slab of the poured material and
formwork
segment 11, increasing the friction between the poured material and formwork
segment 11. In summary, formwork segment 11 enters into the slab of the poured
material or vice versa to increase the adherence between both.
[00036]Formwork segment 11 bears the pressure of the poured material within
hollow
space 12 of formwork segment 11 and subsequently, of the poured material
hardened
by curing or setting.
[00037] In addition, formwork segment 11 is transportable empty or filled with
the slab
of the poured material up to its working position above a foundation or
continuous
base plate of a track system.
[00038]Formwork segment 11 provides a plurality of projections at the lower
outer
face 15 as figures jutting out projected beyond the surface of the lower outer
face 15,
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which are distributed at the lower outer face 15, preventing relative slipping
between
the slab of the poured material and formwork segment 11 by increasing the
friction
between formwork segment 11 and the foundation.
[00039]In summary, formwork segment 11 enters into the foundation to obtain an
anchoring effect by increasing the adherence between formwork segment 11 and
the
foundation.
[00040]As per one variant, the foundation comprises at least one insertion
projected
beyond the surface of the foundation at a predetermined height to enter into a
hollow
deformation 16 of projection 13, which receives the insert of the foundation,
providing
a similar anchoring effect between formwork segment 11 and the foundation.
[000411 Formwork segment 11 receives an elastic material within the hollow
space 12
of formwork segment 11 in the shape of a blanket of elastomeric type of
material to
control vibrations and noise generated by the movement of railway vehicles
over
railways of a track system.
[00042]Formwork segment 11 is installed in its working position, directly
supported
above the foundation or directly supported above an elastic material of an
elastomeric
type of material, which is in turn directly supported above the foundation
with the
objective of increasing the elasticity between the foundation and the formwork
segment and decreasing the dynamic loads when railway vehicles pass.
[00043]Formwork segment 11 is produced like a pre-fabricated part, which
juxtaposing
a big number of aligned formwork segments 11, making some formwork segments 11
bump into other formwork segments 11; joining the segments 11 among themselves
achieves a bench of continuous integral rolling.
[00044]With respect now to the figures 2 to 5 that show formwork segment 11
including a plurality of empty hollows 21, which can receive a plurality of
points of
track support 31 for assembly and fastening of two tracks 32 running parallel
to each
other. Points of support 31 are projected beyond the surface of the slab of
the poured
material at a predetermined height. Point of support 31, once inserted within
the
hollow 21 is supported by a cover part 22 of elastic material to reduce noise
and
vibrations generated by the movement of vehicles on railways of the track
system.
[00045]Points of track support 31 are inserted within the slab of the poured
material.
As such, the points of support 31 of the tracks must be routed individually or
like
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sleepers within formwork segment 11 before emptying the freshly poured
material
within the hollow space 12 of formwork segment 11.
