EP3336255B1 - Dispositif de protection anti-feu d'un cable de structure - Google Patents

Dispositif de protection anti-feu d'un cable de structure Download PDF

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Publication number
EP3336255B1
EP3336255B1 EP16306729.1A EP16306729A EP3336255B1 EP 3336255 B1 EP3336255 B1 EP 3336255B1 EP 16306729 A EP16306729 A EP 16306729A EP 3336255 B1 EP3336255 B1 EP 3336255B1
Authority
EP
European Patent Office
Prior art keywords
reinforcements
protection device
fire protection
stretch
protective mat
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.)
Active
Application number
EP16306729.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3336255A1 (fr
Inventor
Nicolas FABRY
Romain Guicheteau
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 EP16306729.1A priority Critical patent/EP3336255B1/fr
Priority to PL16306729T priority patent/PL3336255T3/pl
Priority to DK16306729.1T priority patent/DK3336255T3/da
Priority to US15/837,284 priority patent/US10000899B1/en
Priority to CA2989066A priority patent/CA2989066C/en
Priority to AU2017276351A priority patent/AU2017276351B2/en
Priority to KR1020170174383A priority patent/KR102458624B1/ko
Priority to RU2017144197A priority patent/RU2751322C2/ru
Priority to MX2017016771A priority patent/MX378139B/es
Publication of EP3336255A1 publication Critical patent/EP3336255A1/fr
Application granted granted Critical
Publication of EP3336255B1 publication Critical patent/EP3336255B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2088—Jackets or coverings having multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/202—Environmental resistance
    • D07B2401/203—Low temperature resistance
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/202—Environmental resistance
    • D07B2401/2035—High temperature resistance
    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/002—Making parallel wire strands
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/04—Cable-stayed bridges

Definitions

  • the present invention relates to the fire protection of cables having a structural role in construction works, especially structures having guyed portions, suspended or stiffened by cables.
  • One of the major risks for a cable structure in the operating phase is fire, in particular of a vehicle, particularly near a rope anchoring zone, for example on a bridge road.
  • a structural cable of such a structure comprises tensile metal reinforcements for transmitting the required forces between its ends.
  • the reinforcements are, for example, metal strands possibly contained in individual plastic sheaths.
  • the bundle of metal reinforcements is often surrounded by a collective plastic sheath which gives the cable aerodynamic properties, an aesthetic appearance and / or an anti-vandalism function.
  • WO 2007/093703 A2 describes a fire protection system comprising a mattress made of a flexible insulating material which directly surrounds the bundle of reinforcements of the cable and which is contained in the collective sheath.
  • This system has the limitation of not allowing to effectively protect the cable at certain singular points where it is interacting with other organs of the structure. For example, if a deflector or damper is applied against the cable, the presence of the flexible material of the mattress prevents good communication of efforts and a good functioning of this body.
  • Singular points of this type are often present near cable anchors. This is the case, for example, for installing stay dampers. Examples are described in EP 0 343 054 A1 and WO 2015/059413 A1 .
  • the priority is to protect the cable bundle, even if it means replacing peripheral equipment such as a shock absorber or a deflector.
  • the value of the transverse rigidity, in any direction orthogonal to the longitudinal axis of the cable, of the collar is never less than 10 6 N / m (100 kgf / mm) and advantageously greater than 10 8 N / m ( 10 t / mm).
  • An object of the present invention is to provide another mode of protection capable of overcoming at least in part the above difficulties.
  • the device provides an auxiliary protection to the singularities of the connection areas of collars while protecting the armature bundle by a protective mat on both sides of such connection areas.
  • the continuity of the protection avoids the thermal bridges that would be likely to transmit to the metal frames the heat generated by a fire near the cable.
  • Fire protection may be limited to an area adjacent to an anchorage of the cable, or extend over the entire length of the cable, depending on the fire hazard to be considered for the structure.
  • the insulating ring comprises a plurality of elements assembled around the reinforcements, in mutual contact with surfaces lined with a fire seal.
  • a plastic diverter tube can be placed between the insulating ring and the reinforcements in the connection area.
  • Fiber concrete is used, among other materials, to make the insulating ring.
  • Fiber concrete may include metal fibers and polypropylene fibers
  • the protective mattress may consist of several segments disposed end-to-end in at least one of the first and second sections of the structural cable, a covering mat being placed around two adjacent segments to ensure the continuity of the thermal protection.
  • the protective mattress may be placed longitudinally in contact with the insulating ring on the side of the first section and on the side of the second section.
  • the protective mat has a portion having a longitudinal overlap with the thermally insulating ring between the reinforcements and the thermally insulating ring.
  • Another possibility is to have an intumescent material at the interface between the protective mat and the insulating ring on the side of the first section and the side of the second section.
  • An embodiment of the fire protection device further comprises, in at least one of the first and second sections, a tube in which are housed the reinforcements of the structural cable, the protective mat being arranged around this tube.
  • the insulating ring has a rigidity at least 100 times greater than that of the protective mat.
  • the structural cable further comprises an outer sheath surrounding the reinforcements and the protective mat in at least one of the first and second sections.
  • the collar may have the function of providing a connection of at least one damping element to the structure cable for damping vibrations of the structural cable.
  • the construction work may consist in particular of a cable-stayed bridge, an extradossed bridge, a suspension bridge or a cable-stayed tower.
  • the invention is described below in its non-limiting application to bridges with wire. It will be understood that it is also applicable advantageously in extradossed bridges, suspension bridges or guyed towers.
  • the structural cables to be protected against fire may still be external prestressing cables of concrete structures.
  • the structural cables considered 16 are the stays of a bridge which extend between a pylon 20 of the bridge and its apron 14 for suspending the deck 14.
  • One or more of the stays 16 are equipped with a damping device 22 comprising an arm extending transversely to the stay 16 between an attachment point P situated near its low anchorage (for example a few% of the length total of the stay) and apron 14.
  • a collar 30 such as that shown in FIG. figures 2 and 3 .
  • a similar collar can be used to connect the structural cable to a fixed deflector (without damper) by which it is supported, for example, on a guyed structure or a guying pylon.
  • a hanger collar located near the deck of a suspension bridge. When a hanger collar is at a height of less than about 10 m, or even up to 18-20 m, it is likely to be impacted by a vehicle light, so that the measures described below can be advantageously adopted.
  • the structural cable constituted by the stay 16 comprises a bundle of metal frames 32, which are stretched between two anchoring devices (not shown) arranged at its ends, one on the deck 14 and the other on the pylon 20.
  • the reinforcements 32 are, for example, strands, in particular strands individually sheathed and greased or waxed.
  • the frames 32 are protected against fire by a flexible protective mat 34, which may, for example, be similarly constituted, in particular with the same materials as that described in FIG. WO 2007/093703 A2 .
  • the mattress 34 may extend over the entire length of the stay, or only on a part of it if the fire protection is not required for the entire length.
  • the figure 2 shows the zone 40 connecting the collar 30, which is located between a first section 41 and a second section 42 of the stay 16.
  • Each section 41, 42 extends from the connection zone 40 to an anchoring of the stay, either to another singular point, or to a point in the running part from which the protective mat is no longer required.
  • the protective mat 34 envelopes the stay 16 in the first and second sections 41, 42, and it stops in the connection zone 40. Indeed, the flexibility of the mattress 34 is not necessarily suitable for the function of the connected equipment to the stay 16 via the collar 30. A stiffer interaction is typically required at this level.
  • a ring 36 more rigid than the protective mat 34 (K times stiffer with K ⁇ 100 for example, or K ⁇ 10,000), is disposed between the plates 32 and the collar 30 in the connection zone 40.
  • the rigidity of the insulating ring 36 may be greater than 10 6 N / m, or even 10 8 N / m.
  • the ring 36 also serves to avoid the thermal bridges between the metal reinforcements of the stay 16 and the collar 30. It is thermally insulating and cooperates with the protective mat 34 to provide the reinforcements with continuous thermal protection throughout the first section 41, of the connection zone 40 and the second section 42.
  • the insulating ring 36 may be made of a fiber-reinforced concrete, in particular an ultra-high performance fiber-reinforced concrete (UHPC).
  • the fibers used in the composition of fiber concrete may comprise metal fibers and polypropylene fibers.
  • the metal fibers improve the mechanical strength of the ring 36, while the polypropylene fibers improve its resistance in case of temperature rise, limiting the embrittlement due to wrinkles.
  • the insulating ring 36 is made of several molded elements 36a, 36b which are then assembled around the bundle of reinforcements 32.
  • the ring 36 consists of two molded half-shells 36a, 36b assembled around the reinforcements 32.
  • a fire seal 37 is placed on the mutual contact surfaces of the two molded half-shells 36a, 36b.
  • a deflection tube 38 is inserted between the ring 36 and the bundle
  • the tube 38 is made of plastic, for example a high density polyethylene (HDPE). It has a toric geometry on its internal face to accommodate small deviations undergone by the bundle of reinforcement 32 to the right of the collar 30. If the bundle of reinforcements 32 has a polygonal cross-section (hexagonal in the case of the figure 3 ), the deflector tube 38 can be constituted by arranging several plastic plates against the faces of the bundle before setting up the elements 36a, 36b of the ring 36.
  • HDPE high density polyethylene
  • the left part of the figure 2 shows that in option, there can be provided a tube 44 which contains the bundle of reinforcements 32 and which is surrounded by the protective mat 34.
  • This tube 44 for example HDPE, adds a blade of air between the frames 32 and the mattress 34 and, in this way, further increases the thermal protection of the frames in case of fire.
  • Such a tube may be present in one of the sections 41, 42, or in both.
  • the mattress 34 is held on the cable 16 with an adhesive or strapping ties, or a combination of these two types of means.
  • the figure 2 shows again that the protective mat 34 is placed longitudinally in contact with the insulating ring 36 on the side of the first section 41 and the side of the second section 42.
  • fireproof mattress thicknesses 45, 46 may be added in the vicinity of the ring 36 to compensate for the thickness of the air gap and the tube 44.
  • the flexible anti-fire mattress disposed on either side of the collar 30 and the insulating ring 36 will not generally be exposed directly to the open air. It will be covered by a tubular sheath (not shown) consisting of either a steel tube or a plastic sheath (HDPE). This sheath gives the guy an aerodynamic and aesthetic profile and mechanically protects the mattress.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Cable Installation (AREA)
  • Bridges Or Land Bridges (AREA)
  • Cable Accessories (AREA)
EP16306729.1A 2016-12-19 2016-12-19 Dispositif de protection anti-feu d'un cable de structure Active EP3336255B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP16306729.1A EP3336255B1 (fr) 2016-12-19 2016-12-19 Dispositif de protection anti-feu d'un cable de structure
PL16306729T PL3336255T3 (pl) 2016-12-19 2016-12-19 Urządzenie do ochrony liny konstrukcyjnej przed ogniem
DK16306729.1T DK3336255T3 (da) 2016-12-19 2016-12-19 Indretning til brandsikring af et strukturkabel
US15/837,284 US10000899B1 (en) 2016-12-19 2017-12-11 Fire protection device for a structural cable
CA2989066A CA2989066C (en) 2016-12-19 2017-12-13 Fire protection device for a structural cable
AU2017276351A AU2017276351B2 (en) 2016-12-19 2017-12-15 Fire protection device for a structural cable
KR1020170174383A KR102458624B1 (ko) 2016-12-19 2017-12-18 구조 케이블용 방화 장치
RU2017144197A RU2751322C2 (ru) 2016-12-19 2017-12-18 Устройство противопожарной защиты строительных тросов
MX2017016771A MX378139B (es) 2016-12-19 2017-12-19 Dispositivo de protección contra incendios para un cable estructural.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16306729.1A EP3336255B1 (fr) 2016-12-19 2016-12-19 Dispositif de protection anti-feu d'un cable de structure

Publications (2)

Publication Number Publication Date
EP3336255A1 EP3336255A1 (fr) 2018-06-20
EP3336255B1 true EP3336255B1 (fr) 2019-10-02

Family

ID=57794093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16306729.1A Active EP3336255B1 (fr) 2016-12-19 2016-12-19 Dispositif de protection anti-feu d'un cable de structure

Country Status (9)

Country Link
US (1) US10000899B1 (pl)
EP (1) EP3336255B1 (pl)
KR (1) KR102458624B1 (pl)
AU (1) AU2017276351B2 (pl)
CA (1) CA2989066C (pl)
DK (1) DK3336255T3 (pl)
MX (1) MX378139B (pl)
PL (1) PL3336255T3 (pl)
RU (1) RU2751322C2 (pl)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109736207A (zh) * 2019-01-28 2019-05-10 秭归县交通运输局 智能温度补偿斜拉索绝缘系统
CN111549666B (zh) * 2020-06-03 2025-03-18 江苏天龙玄武岩连续纤维股份有限公司 一种耐火斜拉索及其制作方法
CN113503340A (zh) * 2021-06-30 2021-10-15 云南大永高速公路有限公司 一种具有耐高温防护结构的拉索及其组装方法
CN113774792A (zh) * 2021-09-28 2021-12-10 江苏中矿大正表面工程技术有限公司 一种用于桥梁钢索的新材料防火体系
CN114481831A (zh) * 2022-01-20 2022-05-13 中铁桥研科技有限公司 一种斜拉索护套自适应温度的伸缩装置及斜拉索
CN114214940B (zh) * 2022-01-25 2023-12-08 江苏中矿大正表面工程技术有限公司 一种悬索桥钢索抗火隔离装置
CN114277661B (zh) * 2022-01-25 2023-12-29 中国矿业大学 一种悬索桥主缆索夹的防火装置
CN114263111B (zh) * 2022-01-25 2023-12-29 江苏中矿大正表面工程技术有限公司 一种悬索桥钢索体系的防火、防护系统
CN116104004B (zh) * 2023-01-16 2025-11-04 广东坚宜佳五金制品有限公司 拉索及其制作方法
CN116856262A (zh) * 2023-06-05 2023-10-10 高速铁路建造技术国家工程研究中心 一种适用于拉索桥的防火保护系统
CN117661426A (zh) * 2023-12-19 2024-03-08 江苏法尔胜缆索有限公司 一种可实现遇热双向膨胀的斜拉索阻火装置及其安装方法

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FR2631407A1 (fr) 1988-05-16 1989-11-17 Freyssinet Int Stup Perfectionnements aux dispositifs pour amortir les vibrations des haubans
JP2963312B2 (ja) * 1993-07-28 1999-10-18 三菱電線工業株式会社 ケーブル貫通部の防火構造
JP4207204B2 (ja) * 2003-10-20 2009-01-14 アロン化成株式会社 ケーブルの敷設方法および防火性ベルブロック
JP2007046268A (ja) * 2005-08-08 2007-02-22 Chiyoda Engineering Consultants Co Ltd 既設橋梁用ケーブルにおけるテロ対策用防護機構
FR2897623B1 (fr) 2006-02-17 2008-04-11 Eiffage Tp Sa Dispositif de protection au feu d'un cable ou analogue d'ouvrage d'art ou de genie civil
US7748307B2 (en) * 2006-08-04 2010-07-06 Gerald Hallissy Shielding for structural support elements
JP5378922B2 (ja) * 2009-09-17 2013-12-25 株式会社技建管理 Ｐｃ鋼材の耐火被覆構造およびその工法
CN201635009U (zh) * 2010-01-09 2010-11-17 深圳中建院建筑科技有限公司 一种长效建筑拉索
US8795832B2 (en) * 2010-07-30 2014-08-05 Fyfe Co., Llc Systems and methods for protecting a cable or cable bundle
WO2012052796A1 (en) * 2010-10-19 2012-04-26 Soletanche Freyssinet Structural cable with fire protection
FR3012193B1 (fr) 2013-10-23 2015-12-18 Soletanche Freyssinet Dispositif d'amortissement de vibrations d'un cable
RU157696U1 (ru) * 2015-01-26 2015-12-10 Открытое акционерное общество Всероссийский научно-исследовательский, проектно-конструкторский и технологический институт кабельной промышленности (ВНИИ КП) Кабель оптический монтажный

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Also Published As

Publication number Publication date
DK3336255T3 (da) 2020-01-06
US20180171570A1 (en) 2018-06-21
KR20180071182A (ko) 2018-06-27
RU2751322C2 (ru) 2021-07-13
KR102458624B1 (ko) 2022-10-25
AU2017276351A1 (en) 2018-07-05
EP3336255A1 (fr) 2018-06-20
CA2989066C (en) 2026-03-10
MX2017016771A (es) 2018-11-09
CA2989066A1 (en) 2018-06-19
AU2017276351B2 (en) 2022-12-08
US10000899B1 (en) 2018-06-19
RU2017144197A3 (pl) 2021-01-12
PL3336255T3 (pl) 2020-05-18
MX378139B (es) 2025-03-10
RU2017144197A (ru) 2019-06-18

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