WO2025253151A1 - Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural - Google Patents

Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural

Info

Publication number
WO2025253151A1
WO2025253151A1 PCT/IB2024/000283 IB2024000283W WO2025253151A1 WO 2025253151 A1 WO2025253151 A1 WO 2025253151A1 IB 2024000283 W IB2024000283 W IB 2024000283W WO 2025253151 A1 WO2025253151 A1 WO 2025253151A1
Authority
WO
WIPO (PCT)
Prior art keywords
light fixture
light
duct
support member
cover
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.)
Pending
Application number
PCT/IB2024/000283
Other languages
English (en)
Inventor
Miklos Toth
Ronan Solet
Vincent MAILLET
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.)
Soletanche Freyssinet SA
Original Assignee
Soletanche Freyssinet SA
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 Soletanche Freyssinet SA filed Critical Soletanche Freyssinet SA
Priority to PCT/IB2024/000283 priority Critical patent/WO2025253151A1/fr
Publication of WO2025253151A1 publication Critical patent/WO2025253151A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/148—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising marks or luminous elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2015—Construction industries
    • D07B2501/203—Bridges

Definitions

  • the present document relates to structural cables used in construction works, and more particularly to light fixtures that may be incorporated in such structural cables.
  • the lighting system is typically mounted on a duct or sheath disposed around the cable.
  • the light fixtures do not form significant protrusions on the outer profile of the cable.
  • the lighting system is added when retrofitting existing structural cables.
  • the stay cables of the Shangdi bridge in China, were equipped with sleeves incorporating LED lamps to provide an ornamentation of the landscape around the bridge. See “Research on Difficult Problems in Landscape Lighting Design of Shangdi Cable-stayed Bridge of Beijing-Xinjiang Expressway in Beijing”, LI Li and GUAN Peng, Railway Standard Design, Vol. 58, No. 8, August 2014, pp. 138-140.
  • WO 2018/020289 A1 discloses a dual sheath for a stay cable, with an inner sheath having the traditional function of protecting the metallic armatures forming the load-bearing part, an outer sheath to be exposed to the environment and a gap between two sheaths. Light modules are disposed in the gap and radiate light through apertures formed in the outer sheath.
  • the lighting function may be designed from the outset, together with the sheath that is installed around the load-bearing part of the cable. In this case, it is generally not suitable for retrofitting existing stay cables.
  • the sheath design includes pockets to accommodate light modules.
  • KR 10-1 180049 B1 discloses a lighting system for hanger cables of a suspension bridge.
  • a light fixture for mounting on a duct element which has a first aperture through a wall thereof.
  • the light fixture comprises a cover, a light module and a support member.
  • the cover has an inner surface, an outer surface and a second aperture between the inner and outer surfaces.
  • the inner surface of the cover is configured to be interfaced with an outer side of the duct element around the first aperture in a mounting position where the first and second apertures are aligned.
  • the support member is attached to the inner surface of the cover, and comprises a recess configured to hold the light module between the support member and the inner surface of the cover.
  • the light module is arranged to radiate light outwardly from the second aperture.
  • the light fixture can be pre-assembled in large series for mounting on duct elements in view of providing a lighting system for the cables of a structure.
  • the cover is adapted to the outer shape, e.g. diameter, of the duct element to facilitate the mounting steps. Aligning the first and second apertures is done by positioning the light fixture at its intended location. Then the cover can be simply secured to the duct element, e.g. using screws. This simple mounting process can be repeated as many times as necessary.
  • an assembly comprising a duct element having a wall with first apertures, and light fixtures as defined above, mounted on the duct element.
  • Each light fixture is mounted at a respective first aperture of the duct element with the cover against an outer side of the duct element, such that light from the light module is radiated outwardly from the second aperture of the cover and the respective first aperture.
  • the dimension of the assembly perpendicularly to the wall of the duct element can be kept relatively small because part of the light module and the support member at the back side of the cover are accommodated within the wall thickness of the duct element. Accordingly, the thickness of the air gap between the structural cable and the cover remains limited and the overall cross-section does not increase too much.
  • An embodiment of the light fixture further comprises at least one power supply line connected to the light module.
  • the support member comprises at least one port receivingthe at least one power supply line.
  • the at least one port may be oriented parallel to a longitudinal direction of the duct element to guide the at least one power supply line outside the support member.
  • the light fixture may include a first power supply line between the light module and a first coupling part located out of the support member, and a second power supply line between the light module and a second coupling part located out of support member, with the first coupling part configured to interconnect with the second coupling part of the second power supply line of an adjacent light fixture.
  • the support member may comprise two ports oriented diametrically opposite to each other along a longitudinal direction of the duct element to receive and guide the first and second power supply lines, respectively.
  • the support member is made of a piece of molded material.
  • bespoke support members can be manufactured depending on the type of light module selected by the architect or the project owner, to properly maintain the light modules in a relatively narrow gap between the structural cable and the duct element.
  • a lighting system for a structural cable comprising at least one duct element to be disposed around the structural cable, and a plurality of light fixtures.
  • Each duct element has first apertures through a wall thereof.
  • Each light fixture comprises a cover having an inner surface, an outer surface and a second aperture between the innerand outer surfaces, a light module and a support member attached to the inner surface of the cover and comprising a recess configured to hold the light module between the support member and the inner surface of the cover.
  • Each light fixture is mounted at a respective first aperture of a duct element with the cover against an outer side of said duct element, such that light from the light module is radiated outwardly through the second aperture of the cover and through the respective first aperture.
  • the light fixture may include additional features as mentioned above.
  • each light fixture further comprises a first power supply line having a first end connected to the light module of said light fixture and a second end, a first coupling part connected to the second end of the first power supply line, a second power supply line having a first end connected to the light module of said light fixture and a second end, and a second coupling part connected to the second end of the second power supply line.
  • the first coupling part of a light fixture interconnects with the second coupling part of an adjacent light fixture.
  • the support member of each light fixture may comprise at least one port for receiving the first and second power supply lines of said light fixture.
  • the at least one port may be oriented parallel to a longitudinal direction of the duct element to guide the first and second power supply lines outside the support member.
  • the first aperture of a duct element may have two diametrically opposite extensions in the longitudinal direction, to accommodate the first and second power supply lines emerging out of the support member, respectively.
  • the lighting system may further comprise mounting members at an inner side of one of the duct elements, the mounting members having threaded holes to receive screws inserted through said one of the duct elements to secure the covers of light fixtures.
  • a light fixture may be mounted at a first aperture of said one of the duct elements using mounting members having an elongated shape and disposed longitudinally on both sides of said first aperture.
  • the wall of the duct element may have further holes at positions overlapped by the cover of the light fixture, the mounting members having further threaded holes to receive further screws inserted through the further threaded holes of the mounting members and the further holes of the wall.
  • At least one light fixture may be removable from an outer side of the duct element.
  • Fig. 1 is a very schematic side view of a stay cable.
  • Fig. 2 is a perspective view of an example of light fixture.
  • Figs. 3-5 are perspective views showing components of the light fixture of Fig. 2 being assembled.
  • Fig. 6 is a perspective view illustrating how the light fixture of Fig. 2 may be mounted on a portion of a duct.
  • Fig. 7 is a perspective view of the light fixture once mounted on the portion of the duct.
  • Fig. 8 is a cross-sectional view of the light fixture mounted on the portion of the duct.
  • Fig. 9 is a longitudinal view of a structural cable equipped with a lighting system.
  • Fig. 10 is a perspective view of an assembly of a duct element and a few light fixtures.
  • Fig. 11 is a cross-sectional view of a pair of duct elements to be assembled.
  • Fig. 12 is a cross-sectional view of another embodiment of a duct element.
  • Fig. 13 is an enlarged cross-sectional view illustrating how to assemble duct elements as shown in Fig. 12.
  • Fig. 14 is a longitudinal view of a duct element.
  • Fig. 15 is a partial cross-sectional view of the duct element of Fig. 14.
  • Fig. 16 is a perspective view of a lower portion of a stay cable.
  • Fig. 17 is a cross-sectional view of the lower portion shown in Fig. 16. DESCRIPTION OF EMBODIMENTS
  • Fig. 1 shows a structural cable 10 that may be equipped with light fixtures 15 accordingto an embodiment.
  • the cable 10 is, for example, a stay extending along an oblique path between first and second parts 12, 14 where it is anchored using respective anchoring devices 16, 18.
  • the stay cable shown is used to suspend the second part 14 (e.g., a bridge deck) from the first part 12 (e.g., a pylon), or to stabilize a tall structure forming the first part 12 from the ground or some lower structure forming the second part 14. It will be appreciated that the lighting systems presented here are applicable to other types of structural cables.
  • the stay cable 10 shown in Fig. 1 comprises a load-bearing part 22 which typically includes tendons 24, best seen in Figs. 9 and 16, disposed parallel to each other, and contained in a collective sheath 26.
  • the tendons 24 may be steel strands each protected by a substance such as grease or wax and individually contained in a respective plastic sleeve.
  • the collective sheath 26 forms a protective cover for the tendons 24. It is made of plastic material such as high-density polyethylene (HDPE), and internally defines a cavity running along the length of the cable 10 and within which the tendons 24 are arranged.
  • the cross-section of the sheath 26 is typically circular. Other shapes, e.g. polygonal, elliptical, etc., are possible.
  • the cable 10 may have a length of up to several hundred meters.
  • the load-bearing part 22 may include a few tens of tendons 24.
  • the stay cable 10 is equipped with a lighting system which includes the light fixtures 15 mounted on a duct 20.
  • the light patterns that may be generated with the lighting system are selected by the project owner or architect based on the desired visual effects. This determines the number of light fixtures 15, their locations on the ducts 20 of the different stay cables of the structure, their light intensity and colors, etc.
  • the duct 20 is disposed around the stay cable 10 consisting of the bundle of tendons 24 fitted with its protective sheath 26 (if any).
  • An annular gap G is present between the inner surface of the duct 20 and the periphery of the structural cable 10, i.e. the outer surface of the protective sheath 26.
  • the protective sheath 26 has a circular cross-section, and so has the duct 20. It is desirable to keep the gap G relatively thin, preferably with a thickness smaller than 20% of the diameter of the stay cable 10.
  • the duct 20 may have dimples or helical ribs formed on its outer surface, to mitigate the combined effects of rain and wind. Such arrangement to reduce weather- induced vibrations of stay cables is well known in the art.
  • FIG. 2-5 An example of light fixture 15 is illustrated in Figs. 2-5. It includes a cover 30, a light module 40 and a support member 50.
  • the cover 30 is in the form of a plate having a curved shape. It may be made of a corrosion-resistant metal such as aluminum.
  • An aperture 31 is formed centrally in the cover 30.
  • the aperture 31 of the cover 30 is aligned with an aperture 21 which is formed in the wall 23 of the duct 20. In the example illustrated in Fig. 6, the alignment of the apertures 21 , 31 is along a radial direction A of the duct 20.
  • the cover 30 has holes 33 near its periphery to receive screws 34 used to secure the light module 15 to the duct 20.
  • the cover has a generally rectangular shape and four holes 33 near its corners.
  • the screws 34 engage threaded holes 36 formed in mounting members 32 having an elongated shape and disposed at the inner side of the duct 20.
  • Each rod 32 may be preinstalled in the duct 20 using screws 44 inserted into holes 45 formed through the wall 23 of the duct 20 near the aperture 21 between the holes 35 used to attach the light fixture 15.
  • the screws 44 are inserted from the outside into the holes 45 and they engage respective threaded holes 46 provided in the rods 32 between the threaded holes 36 used to attach the light fixture 15.
  • the holes 45 of the duct 20 taper outwardly so that the heads of the screws 44 do not protrude at the outer surface of the duct 20.
  • the heads of the screws 44 are overlapped by the cover 30 once the light fixture is in place.
  • the curvature of the inner surface of the cover 30 matches that of the outer face of the duct 20.
  • the cover 30 does not form a substantial protrusion when it is installed on the duct.
  • the periphery of the cover 30 has a beveled or rounded edge to avoid steps at the surface of the duct 20. It is also possible to provide a recessed portion in the thickness of the wall 23 of the duct around the aperture 21 , to receive the cover 30 so that it is flush with the outer face of the duct 20 once the light fixture is in place.
  • the light module 40 is disposed at the rear, concave side of the cover 30. Its front part is housed in the aperture 31 of the cover 30, so that light will be radiated from the apertures 21 and 31 once the light fixture 15 is in place on the stay cable 10.
  • the support member 50 may be made of a piece of molded material, for example HDPE. It comprises a recess 52 configured to receive and hold the light module 40. At the upper edges of the recess 52, the support member 50 has two flaps 53 extending outwardly and shaped to be in contact with the inner face of the cover 30 on both sides of the aperture 31 . Corresponding holes 38, 58 are formed in the cover 30 and in the flaps 53 in order to secure the support member 50 to the cover using screws 39 and nuts 59. As best seen in Fig. 8, the screws 39 are short and the nuts are accommodated in the holes 21 within the thickness of the duct 20.
  • Power supply lines 42A-B are connected to the light module 40 of the light fixture 15.
  • the power supply lines 42A-B may be provided together with the light modules 40 or separately. As shown in Fig. 3, the power supply lines 42A-B may emerge from outlets 48A-B formed in the waterproof casing of the light module 40.
  • Each power supply line 42A-B extends between the light module 40 and a respective coupling part 43A-B located out of the support member 50 (see Fig. 10).
  • the coupling parts 43A and 43b are complementary, thus allowing several light fixtures 15 to be mounted and supplied with power via the interconnected coupling parts 43A-B.
  • the support member 50 of the light fixture 15 comprises two ports 55A-B receiving the power supply lines 42A-B.
  • the ports 55A-B are oriented parallel to the longitudinal direction of the duct 20, and diametrically opposite to each other, to receive the outlets 48A-B and guide the power supply lines 42-A-B outside the support member 50.
  • Each port 55A, 55B has an upper part which is open to receive the power supply line.
  • Figs. 3-5 illustrate steps for assembling a light fixture 15.
  • the light module 40 is brought towards the top part of the support member 50.
  • the light module 40 is pressed into the support member 50 (thick arrows in Fig. 3).
  • the outlets 48A-B of the power supply lines cause the ports 55A-B of the support member to flex open and then close again to snap fit the light module in the support member 50 (Fig. 4).
  • the cover 30 is brought and fixed to the support member 50 by means of the nuts 59 and the screws 39 inserted into the holes 38 and 58 (thick arrows in Fig. 5).
  • Many light fixtures 15 can be produced in this manner, for example thousands of light fixtures to be installed on a cable-stayed structure. If different models of light modules are used in the installation, different molds are used to make support members adapted to the shape and dimensions of the different models.
  • the duct 20 is made by assembling several identical duct elements 60.
  • Each duct element 60 has a wall 23 extending in the longitudinal direction over a length of typically 3 m or more, for example 5 to 10 m.
  • the cross-section of the duct 20 comprises a number N of duct elements (N > 2).
  • FIG. 10 shows a duct element 60 which has been equipped with light fixtures 15, forming an assembly according to the present disclosure.
  • Each light fixture 15 is at the level of an aperture 21 formed in the wall of the duct element 60.
  • the attachment of the cover 30 on the outer face of the duct element 60 makes it possible to have a significant proportion of the light module 40 and of the support member 50 confined within the wall thickness, which is advantageous to limit the thickness of the gap G.
  • the holes 21 formed in the wall 23 of the duct element 60 may have a generally circular shape with a diameter sufficient to accommodate the support members 50 of the light fixtures 15.
  • Figs. 6, 9 and 10 show extensions 28 of the holes 21 on both sides thereof along the longitudinal direction. The extensions 28 allow the power supply lines 42-A-B to bend smoothly at the exit of the support member 50.
  • the holes 21 and their extensions 28 are overlapped by the covers 30 of the light fixtures 15 so that they are not apparent once the light fixtures 15 are in place.
  • the light fixture 15 can be removed from the outer side of the duct 20, i.e. the convex side of the duct element 60, by removing the screws 34 and lifting the cover 30. Some length of the power supply lines 42A-B can then be pulled to disconnect them from those of the adjacent light fixtures. The rods 32 remain in place within the duct 20 and so a new light fixture can be installed to replace the previous one.
  • the support member 50 comprises only one port receiving the two power supply lines 42- A-B. In that case, it is possible to provide only one (broader) extension 28 of the hole 21 .
  • Duct elements as shown in Fig. 10 can be equipped with their light fixtures in the factory, and then transported to the construction site for installation on stay cables 10. Thus, a minimum number of process steps need to be performed on the construction site, which is advantageous from the point of view of costs. It also reduces the need to block the traffic to carry out the retrofitting.
  • the duct elements are assembled with each other around a stay cable 10 once theyare received atthe construction site.
  • the longitudinal edges of a duct element 60 are configured for assembling it with a paired duct element 60’ when forming the duct 20 around the stay cable 10.
  • the walls 23 of the paired duct elements 60, 60’ have the same dimensions.
  • the shapes of their longitudinal edges are also the same.
  • the duct elements 60, 60’ can be produced in series to equip the construction work. They are, for example, produced by an extrusion process.
  • a duct element 60, 60’ has a longitudinal edge shaped as a male coupling part 62, and the other longitudinal edge shaped as a female coupling part 63.
  • the male and female coupling parts 62, 63 extend over the whole length of the duct elements 60, 60’.
  • the male coupling part 62 has a projection while the female coupling part 63 has a hook portion that can flex and engage the projection to provide snap fitting of the paired duct elements 60, 60’.
  • the wall 23 of the duct elements 60, 60’ has no voids.
  • each duct element has voids 66.
  • the wall 23 comprises an outer layer 67 and an inner layer 68 concentrically positioned and separated from the outer layer 67 by stiffeners 69 which extend radially and longitudinally.
  • Such a configuration of the wall 23 may be obtained by extruding plastic.
  • the extrusion process can also define the matching shapes of the longitudinal edges of the duct elements. In the example of Figs.
  • the male coupling part 62 along one longitudinal edge has an arrowhead-shaped cross-section that remains within the thickness of the wall 23, while the female coupling part 63 along the other longitudinal edge comprises a complementary recess that has the same width at the voids 66 with a narrow channel to receive the arrowhead-shaped male coupling part 62 in a snap-fitting engagement.
  • paired duct elements are brought together around a stay cable 10 and snap-fitted together. This step is carried out near the lower end of the stay cable. The duct segment thus formed is pushed upwardly to slide alongthe stay cable 10.
  • Figs. 12 and 13 allows the paired duct elements 60 to slide along each other, which may facilitate the installation of the duct 20 around the stay cable 10 in certain cases.
  • a front end of the male coupling part 62 may be introduced into the rear end of the female coupling part 63 of the paired duct element to initiate the assembly around the stay cable 10.
  • the remaining length of the male coupling part will be progressively inserted into the female coupling part of the paired duct element.
  • Consecutive segments of the duct 20 can be butt-welded at their longitudinal ends using a conventional hot mirror technique.
  • FIGs. 10 and 11 show spacers 70 protruding from the inner face of the wall 23 of the duct.
  • the spacers 70 may be welded to the inner face of the wall 23 or fixed using screws or some other type of connectors.
  • the spacers 70 are provided to ensure that a sufficient gap G is maintained between the inner face of the duct 20 and the outer face of the sheath 26 of the stay cable so as to accommodate the light fixtures and the connectors formed by interconnecting the coupling parts 43A-B. As mentioned earlier, it is desirable to keep the gap G relatively thin.
  • the spacers 70 protruding from the inner face of the wall 23 of the duct 20 have a height hi which is less than the average thickness of the gap G between the periphery of the stay cable 10 and the inner surface of the duct 20 (Figs. 10- 11 and 14-15).
  • the thickness of the gap G may be defined as the difference Ar between the inner radius of the duct 20 and the outer radius of the sheath 26.
  • the gap is thicker below than above the sheath 26 because of the weight of the duct 20 and the light fixtures 15. Still the average gap thickness is Ar.
  • the spacers 70 should also be dimensioned with the height hi less than the average thickness of the gap G.
  • the spacers 70 shown in Figs. 10 and 14-15 do not extend continuously over the whole length of the duct elements 60. They have a certain length along the longitudinal direction of the duct, for example 5 to 80 cm, which is better to preserve the bending flexibility of the duct 20.
  • the spacers 70 have an elongated contact region 71 representing about a third of their length and two curved end regions 72 on both sides of the contact region 71 along the longitudinal direction.
  • the height hi of the spacer 70 is the height of the central region 71 .
  • the height of the end regions 72 is progressively reduced from the height hi . This provides a smooth transition between the regions 71 and 72 and gives to the spacers 70 the general shape of a ski.
  • That shape of the spacers 70 is suitable for them to slide smoothly on the sheath 26 of the stay cable 10 when the duct 20 is installed.
  • the height hi of the spacers 70 is larger than the height h 2 (indicated in Figs 8 and 10) by which the light fixtures 15 protrude at the inner face of the wall 23.
  • the spacers 70 protect the light fixtures 15 from shocks or friction when the duct 20 slides along the stay cable 10.
  • the duct segment thus formed bears on the sheath 26 by two of the four spacers 70 of the provided in its cross-section and it can slide at the contact regions 71 of those two spacers 70.
  • the interval between two other spacers 70 and the sheath 26 is also useful to allow the sheath 26 and the duct 20 to expand differently when there are substantial temperature variations in the environment of the cable-stayed construction.
  • spacers 70 there can also be more or less than four spacers 70 in the cross-section of the duct 20. Additionally, the spacers 70 may be offset with respect to each other along the longitudinal direction.
  • Fig. 16 shows an end portion of the duct 20 and the stay cable 10. Reference is made here to the lower portion at the second part 14 of the construction, e.g. bridge deck. A similar arrangement may also be provided at the upper portion.
  • the stay cable 10 passes successively through transition tubes including a formwork tube 80, a guide tube 82 and an anti-vandalism tube 84 which covers the guide tube 82 at the transition with the duct 20.
  • the transition tubes 80, 82, 84 are fixed to the second part 14.
  • Fig. 16 has a torn off part to expose the tendons 24, the sheath 26, as well as electrical cables 86 that extend in the tubes 80 and 82 to be connected to the power supply lines of the light fixtures 15. Before the anchoring device 18, the cables 86 emerge to be connected to a power source.
  • a locking system 90 is arranged at the end portion of the duct 20.
  • An example of such locking system, or anti-rotation system, is illustrated in Fig. 17.
  • the anti-rotation system is useful to ensure the proper orientation of the light patterns generated by the light fixtures 15. For example, if the light fixtures 15 are designed to radiate horizontally on both sides of the stay cables, even a small rotation of the duct could significantly change the visual effects produced by the lighting system.
  • the anti-rotation system 90 comprises notches (or holes) 91 formed in the end portion of the duct 20 through its wall 23, and lugs 92 inserted in the notches 91 .
  • the lugs 92 are attached to one of the transition tubes, typically the anti-vandalism tube 84, using bolts 94.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'appareil d'éclairage destiné à être installé sur un élément de conduit comportant une première ouverture à travers une paroi de celui-ci comprend un couvercle, un élément de support et un module de lumière. Le couvercle comporte une surface interne, une surface externe et une seconde ouverture entre les surfaces interne et externe. La surface interne du couvercle est conçue pour être interfacée avec un côté externe de l'élément de conduit autour de la première ouverture dans une position d'installation au niveau de laquelle les première et seconde ouvertures sont alignées. L'élément de support est fixé à la surface interne du couvercle et comprend un évidement conçu pour maintenir le module de lumière entre l'élément de support et la surface interne du couvercle. Le module de lumière est conçu pour émettre de la lumière vers l'extérieur par la seconde ouverture. L'appareil d'éclairage est approprié pour être installé sur un conduit installé autour d'un câble structural tel qu'un câble de hauban.
PCT/IB2024/000283 2024-06-06 2024-06-06 Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural Pending WO2025253151A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2024/000283 WO2025253151A1 (fr) 2024-06-06 2024-06-06 Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2024/000283 WO2025253151A1 (fr) 2024-06-06 2024-06-06 Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural

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WO2025253151A1 true WO2025253151A1 (fr) 2025-12-11

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PCT/IB2024/000283 Pending WO2025253151A1 (fr) 2024-06-06 2024-06-06 Luminaire destiné à être installé sur un élément de conduit, et système d'éclairage pour câble structural

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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