EP1001089B1 - Schrägseilsystem - Google Patents

Schrägseilsystem Download PDF

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Publication number
EP1001089B1
EP1001089B1 EP98119471A EP98119471A EP1001089B1 EP 1001089 B1 EP1001089 B1 EP 1001089B1 EP 98119471 A EP98119471 A EP 98119471A EP 98119471 A EP98119471 A EP 98119471A EP 1001089 B1 EP1001089 B1 EP 1001089B1
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EP
European Patent Office
Prior art keywords
anchorage
anchoring
girder
steel
cable
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.)
Expired - Lifetime
Application number
EP98119471A
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English (en)
French (fr)
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EP1001089A1 (de
Inventor
Yincheng Hou
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Individual
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Individual
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Publication date
Priority to AT98119471T priority Critical patent/ATE244794T1/de
Application filed by Individual filed Critical Individual
Priority to DE69816303T priority patent/DE69816303D1/de
Priority to EP98119471A priority patent/EP1001089B1/de
Priority to CN99238963U priority patent/CN2412029Y/zh
Priority to CN99117135.7A priority patent/CN1266929A/zh
Priority to CN99117134.9A priority patent/CN1266928A/zh
Priority to CN99238964U priority patent/CN2412028Y/zh
Publication of EP1001089A1 publication Critical patent/EP1001089A1/de
Application granted granted Critical
Publication of EP1001089B1 publication Critical patent/EP1001089B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • 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

Definitions

  • the invention relates to the field of stay cable system for cable-stayed bridges.
  • Stay cable system consists basically of tendon member, protection member, the member of anchorage sockets as well as the member of cable-girder and cable-pylon attaching structures. These members relate and influence with each other.
  • Stay cables normally govern the useful life and construction progress of cable-stayed bridges with the following factors: resistance to fatigue loading and corrosion, ease of transportation and erection, allowance of inspecting as well as ability of eventual replacement.
  • the attaching structures influence the safety, economy and aesthetics of whole bridge sensitively by the reliability and compact of their arrangement.
  • DE 3 723 795 A discloses a stay cable system with all the features of the preamble of claim 1.
  • the tendons with parallel strands are more and more widely used in stay cable systems, because of their advantages of easy transportation and erection. But at present there are three serious problems in such kind of cable systems.
  • This invention will solve the entire Problem A, Problem B and Problem C at the same time.
  • Figure 1 illustrates the general layout of the novel stay cable system, which is exclusively for the tendons with parallel strands (I) covered by a sheath pipe (Ib).
  • the system comprises five parts:
  • Part 1 novel arrangement of anchorage holes.
  • monostrand anchored holes on anchor head are normally arranged with odd number (for example 61).
  • monostrand anchored holes on main anchor head (1) are always arranged with even number (for example 60), and are separated into two symmetrical groups (1a and 1b).
  • those two groups of strand can easily pass through the I-girder (II) along both side of girder web respectively keeping axes of cable and girder web in a same plane then can reliably be anchored in a main anchor head (1) under the bottom of the girder (II).
  • the strands (Ia) outside main anchorage socket do not be cut off after the final jacking, for it will be convenient for eventual individual strand replacement and the strands will be under protecting of dehumidification system (see Part 5).
  • Part 2 novel double half-cylindrical auxiliary anchorage sockets.
  • auxiliary anchorage socket works for traffic load only, its construction ought and can be calmly arranged after the final cable force adjustment Besides the fatigue resistant criterion, another design criterion for auxiliary anchorage sockets is that strands must be individually anchored in the sockets to ensure the possibility of individual strand replacement. Two types of auxiliary anchorage socket are created for selecting.
  • Part 3 - novel anchoring tie beam in pylon Part 3 - novel anchoring tie beam in pylon.
  • anchoring tie beams in pylon (III) can be simplified to the most economical type of I-beam (3), web and stiffening plates of which are also signed with (IIa) (IIb) respectively as in I-girder.
  • the structures mentioned in Part 1 and Part 2 are valid in Part 3.
  • Tie beam with I-section can be extensively used for inclined cable plane by the helping of tie bars (3a) (see Figure 6). Advantages of the structure are:
  • Part 4 novel steel anchoring bed.
  • the conventional anchoring bed can be replaced by a novel steel anchoring bed (4), web and stiffening plates of which are also signed with (IIa) (IIb) respectively as in I-girder (see Figure 8).
  • the structures mentioned in Part 1 and Part 2 are valid in Part 4.
  • Two dry air transmission pipes (5b) are erected from the main anchorage plate (4a) in pylon (III) to the cells enclosed by stiffening plates (IIb) and cover plates (IIc) at the bottom of girder (II or IId) and connected to a dehumidification plant (5g), which is installed inside anchoring room at pylon top, by the dry air entrances (5a).
  • a dehumidification plant (5g) works, air circulates within the whole hollow part of cable.
  • Dry air is blown into the transmission pipes (5b) through dry air entrances (5a), then separates out of dry air exits (5c) mainly at the bottom of sheath pipe (Ib), partly at the guide pipes (Ic) and cells enclosed by stiffening plates (IIb) and cover plates (IIc).
  • wet air is exhausted out of cable to the plant (5g) through vent holes (5d), vent pipes (5e), which pass through the positioners (Id) of strands (I) in guide pipe (Ic), and wet air exits (5f).
  • Such operation offers to one cable after another with certain hours per day or per couple of days for each cable. Similar operation offers also to anchoring room in pylon by dry air exit (5o) and wet air entrance (5p) of the plant (5g) at regular intervals to protect the strands (Ia) outside main anchorage socket (see Part 1 also).
  • strand sample (5k) and humidity measuring point (5i) are arranged in the cells enclosed by stiffening plates (IIb) and cover plates (IIc) at the bottom of girder (II or IId), while strand sample (5l) and humidity measuring point (5h) are arranged in the similar cells in pylon (III) respectively.
  • Strand sample (5k) and/or strand sample (5l) can be checked and tested in laboratory, when necessary. Similar checking and testing can be arranged for sample (5n) of the strands (Ia) outside main anchorage socket.
  • Humidity measuring point (5h) can be connected to the automatic control system of dehumidification plant (5g), if necessary. If there is water inside hollow part of cable, it will flow down through drainage holes (5j) and can be pumped out through the drainage valve (5m).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Flexible Shafts (AREA)
  • Jib Cranes (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Claims (4)

  1. Ein Schrägseilsystem, ausschließlich für Strang mit parallelen Litzen (I) gedacht, abgedeckt durch ein Deckrohr (Ib), das ein Kabelschutzsystem einschließt, welches aus Trockenlufteingängen (5a), Trockenluftdurchgangsröhren (5b), Trockenluftausgängen (5c), Luftwechsellöchern (5d), Luftwechselröhren (5e), Feuchtluftausgängen (5f), einer Entfeuchtungsanlage (5g), sowie aus einigen anderen Überwachungs-, Mess-, Kontroll- und Testmöglichkeiten besteht, ist dargestellt. Durch das System soll sichergestellt werden, dass die Drähte eine betriebssichere Schutzumgebung haben, die zulässt, dass sie beobachtet und kontrolliert werden. Das Schrägseilsystem ist weiter gekennzeichnet durch einen:
    Hauptverankerungskopf (1), in den Verankerungslöcher in zwei symmetrischen Gruppen angeordnet sind, die unter einem Stahl- I-Träger oder anderen Stahlträgern so angebracht werden können, dass die Kabelachse und die zentrale Ebene des Stahlträgernetzes zusammenpassen. Im Ankerraum für den Mast werden die Litzen (Ia) außerhalb des Hauptankerkopfes nicht abgeschnitten durch die abschließende Dehnung, um eventuell einzelne Litzen austauchen zu können. Außerdem werden die Litzen durch das oben beschriebene Entfeuchtungssystem geschützt,
    Doppelte halbzylindrische Behelfankerköpfe (2), die auf beiden Seiten der Stahl I-Balken eingerichtet werden kann, in verankerten Bandbalken (3) oder in einer Verankerung in einem Stahlbett (4). In den Sockeln können die Litzen einzeln verankert werden oder gebunden werden, um Ermüdung auszuhalten/ zu widerstehen und um eventuell einzelne Litzen Ersetzung zu ermöglichen. Basierend auf der Hilfe von dem genannten doppelten halbzylindrischen Behelfsankerköpfen (2), gewöhnliche Leisten können verlässlich genutzt werden in den genannten Hauptankerköpfen,
    Der Bandbalken wird (3) mit dem I-Abschnitt verankert, welcher in Pylon (III) angeordnet werden kann, um die Ausrichtung der Behelfsankerköpfe zu erleichtern und um den Gebrauch der senkrechten Kabelebene bis zu einer geneigten Kabelebene mit der Hilfe von Bandstange (3a) auszuweiten,
    Das Ankerbett aus Stahl (4) mit Steifleinenplatte und Netz/Gewebe, stellt die Anordnung der Behelfsankerköpfe in pylon (III), genauso wie unter den Balken (IId), anders aber als die Stahl I-Balken (II), her, um die Achsen der Kabel und das Netz/Gewebe in der gleichen Ebene zu halten.
  2. Ein Schrägseilsystem, wie in Absatz 1 aufgeführt, ist dadurch gekennzeichnet, dass die Ankerbohrungen im Hauptverankerungskopf in zwei symmetrische Gruppen unterteilt sind. Der kleinste Achsenabstand (Dg) zwischen den zwei Bohrungsgruppen ist gleich der Stärke des Netzes (IIa) im Stahl-I-Balken (II), im Stahl-Anker-Bandbalken (3) mit I-Sektion oder im Stahl-Anker-Bett (4) + Durchmesser (Dh) der Einzelstrang-Anker-Bohrung (2c, 2d), im Behelfsankerköpfe (2a, 2b) + doppelte Stärke (At) der Innenwand des Behelfsankerköpfes (2a, 2b), um eine Ausrichtung von doppelten halbzylindrischen Behelfsankerköpfen (2) zu ermöglichen.
  3. Ein Schrägseilsystem, wie unter 1. beschrieben, zeichnet sich durch eine doppeltzylindrische Behelfsankerköpfe (2) aus, die auch bei Dauerbelastung keinerlei Ermüdungsbrüche aufzeigt. Zwei Typen dieser Behelfsankerköpfen stehen zur Verfügung. Beim ersten Typ Sind die Litzen (I) durch zwei Behelfskeile (2j) gesichert, die bei Bedarf einzeln ohne großen Aufwand entfernt und ersetzt werden können. In den Innerringen der Behelfsankerköpfen des zweiten Typs Sind die Litzen (I) einzeln durch Epoxydharz, Zinkpulver und Quarz (2q) verklebt. Diese Mischung verflüssigt sich beim Erhitzen, so dass die Keile dann ausgetauscht werden können.
  4. Ein Schrägseilsystem wie in Abschnitt 1 dargestellt, ist außer durch das Kabelschutzsystem auch weitere Vermessungs-, Mess-, Kontroll- und Testeinrichtungen gekennzeichnet. Diese Einrichtungen sind im einzelnen: Feuchtigkeitsmesspunkte (5h,5i), Entleerungsbohrungen (5j), Strangkontroll- und -test Abschnitte (5k,5l) als auch Entleerungsventile. Die gleichen Teile, Trockenluftauslass (5o) und Feuchtlufteinlass (5p) des Entfechtungsgerätes (5g), als auch der Feuchtigkeitsmesspunkt dienen dem Schutz der Stränge außerhalb des Hauptankersystems. Wenn der Trockenlufteinlass, Trockenluftleitungen, die Trockenluftauslässe, die Entlüfterbohrungen, Entlüfterrohre, die Feuchtluftauslässe, die Enfeuchtungsgeräte, und Trockenluftauslass und Feuchtlufteinlass des Entfechtungsgerätes(5a-5g, 5o, 5p) arbeiten sind alle hohlen Teile des Seil- und des Mast- verankerungsraumes der Luftcirculation erfüllt. Alles unter der Kontrolle der genannten Einrichtungen(5h - 5n).
EP98119471A 1998-10-15 1998-10-15 Schrägseilsystem Expired - Lifetime EP1001089B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE69816303T DE69816303D1 (de) 1998-10-15 1998-10-15 Schrägseilsystem
EP98119471A EP1001089B1 (de) 1998-10-15 1998-10-15 Schrägseilsystem
AT98119471T ATE244794T1 (de) 1998-10-15 1998-10-15 Schrägseilsystem
CN99117135.7A CN1266929A (zh) 1998-10-15 1999-10-12 一种桥梁拉索体系
CN99238963U CN2412029Y (zh) 1998-10-15 1999-10-12 一种桥梁拉索防护装置
CN99117134.9A CN1266928A (zh) 1998-10-15 1999-10-12 一种拉索防护装置
CN99238964U CN2412028Y (zh) 1998-10-15 1999-10-12 一种桥梁拉索结构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98119471A EP1001089B1 (de) 1998-10-15 1998-10-15 Schrägseilsystem

Publications (2)

Publication Number Publication Date
EP1001089A1 EP1001089A1 (de) 2000-05-17
EP1001089B1 true EP1001089B1 (de) 2003-07-09

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EP98119471A Expired - Lifetime EP1001089B1 (de) 1998-10-15 1998-10-15 Schrägseilsystem

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EP (1) EP1001089B1 (de)
CN (4) CN2412029Y (de)
AT (1) ATE244794T1 (de)
DE (1) DE69816303D1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1435413A1 (de) 2002-12-30 2004-07-07 Yincheng Hou Verankerungsvorrichtung für Schrägseilsystem
CN101057040B (zh) * 2004-11-12 2010-12-08 Vsl国际股份公司 用于包括拉索的构造的防腐系统
CN101672006B (zh) * 2009-09-25 2012-12-12 威胜利工程有限公司 斜拉索
CN101775781B (zh) * 2010-01-09 2012-08-15 深圳中建院建筑科技有限公司 一种长效建筑拉索
CN102704396A (zh) * 2012-06-27 2012-10-03 四川天元机械工程股份有限公司 一种悬索桥主缆锚固方法
CN103437284B (zh) * 2012-11-14 2016-12-21 中铁九桥工程有限公司 一种平行四边形截面杆件锚箱定位方法
CN102979034A (zh) * 2012-12-05 2013-03-20 江苏法尔胜缆索有限公司 采用干空气除湿并能监控索体湿度的平行钢丝拉索体系
CN103074851A (zh) * 2012-12-21 2013-05-01 柳州欧维姆机械股份有限公司 夹片式复合型锚固钢绞线成品索及其制作方法
CN103105256B (zh) * 2013-01-29 2015-08-19 葛洲坝集团第五工程有限公司 一种斜拉桥模型试验索力测试系统及方法
CN103981807B (zh) * 2014-05-30 2015-11-18 中建三局集团有限公司 一种无牛腿钢锚梁
CN104818674A (zh) * 2015-03-13 2015-08-05 中交公路规划设计院有限公司 一种悬索桥无粘结预应力锚固防腐的方法和结构
CN105256720A (zh) * 2015-09-17 2016-01-20 中铁大桥科学研究院有限公司 部分地锚平衡索斜拉桥
CN107034785A (zh) * 2017-05-24 2017-08-11 柳州欧维姆机械股份有限公司 一种可换式锚碇预应力锚固装置及其安装换索施工方法
CN107558352B (zh) * 2017-09-12 2023-07-25 柳州欧维姆机械股份有限公司 一种可单根换索的拱桥钢绞线吊杆及其安装施工方法
CN107794842B (zh) * 2017-10-20 2023-05-05 宁波大学 一种高性能耐久防腐拉索锚具及其施工方法
CN107988907A (zh) * 2017-12-27 2018-05-04 中铁第四勘察设计院集团有限公司 一种斜拉索与混凝土主梁的锚固装置
CN108842619A (zh) * 2018-06-14 2018-11-20 法尔胜泓昇集团有限公司 干空气除湿的拉索结构及其实现方法
CN108589530A (zh) * 2018-06-14 2018-09-28 法尔胜泓昇集团有限公司 干空气除湿的进气管结构及其实现方法
CN108691273A (zh) * 2018-06-22 2018-10-23 深圳市科兰德实业发展有限公司 钢绞线斜拉索
CN109295861B (zh) * 2018-11-14 2023-08-01 柳州欧维姆机械股份有限公司 一种锚箱式锚固结构拉索及其张拉施工方法
CN110259246B (zh) * 2019-06-27 2024-03-19 柳州欧维姆机械股份有限公司 一种风塔用钢绞线体外拉索结构体系及其制作安装方法
CN111778852A (zh) * 2020-06-18 2020-10-16 中建三局第二建设工程有限责任公司 一种斜拉索除湿系统的安装方法
CN112523085B (zh) * 2020-12-01 2022-08-16 柳州欧维姆机械股份有限公司 一种带有功能元件的拉索护套管及其施工方法
CN113774790B (zh) * 2021-07-19 2023-04-07 重庆万桥交通科技发展有限公司 一种斜拉桥防腐缆索
CN115977260A (zh) * 2022-10-31 2023-04-18 中冶(上海)钢结构科技有限公司 用于斜拉索结构的l形耳板式锚固连接装置及其使用方式

Family Cites Families (1)

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DE3723795A1 (de) * 1987-06-11 1988-12-29 Wolfgang Dipl Ing Borelly Korrosionsschutz fuer ein aus staehlernen seilen oder paralleldraht- oder -litzenbuendeln bestehendes zugglied

Also Published As

Publication number Publication date
CN2412029Y (zh) 2000-12-27
DE69816303D1 (de) 2003-08-14
CN1266929A (zh) 2000-09-20
CN2412028Y (zh) 2000-12-27
ATE244794T1 (de) 2003-07-15
EP1001089A1 (de) 2000-05-17
CN1266928A (zh) 2000-09-20

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