EP0340051B1 - Brückentafel für eine Brücke mit grosser Spannweite - Google Patents

Brückentafel für eine Brücke mit grosser Spannweite Download PDF

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Publication number
EP0340051B1
EP0340051B1 EP89400731A EP89400731A EP0340051B1 EP 0340051 B1 EP0340051 B1 EP 0340051B1 EP 89400731 A EP89400731 A EP 89400731A EP 89400731 A EP89400731 A EP 89400731A EP 0340051 B1 EP0340051 B1 EP 0340051B1
Authority
EP
European Patent Office
Prior art keywords
deck
bridge
auxiliary
framework
diagonal
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
EP89400731A
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English (en)
French (fr)
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EP0340051A1 (de
Inventor
Jean Muller
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.)
Societe Centrale dEtudes et de Realisations Routieres Scetauroute
Original Assignee
Societe Centrale dEtudes et de Realisations Routieres Scetauroute
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.)
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Publication date
Application filed by Societe Centrale dEtudes et de Realisations Routieres Scetauroute filed Critical Societe Centrale dEtudes et de Realisations Routieres Scetauroute
Priority to AT89400731T priority Critical patent/ATE73187T1/de
Publication of EP0340051A1 publication Critical patent/EP0340051A1/de
Application granted granted Critical
Publication of EP0340051B1 publication Critical patent/EP0340051B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/04—Cable-stayed bridges
    • 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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed
    • E01D2101/285—Composite prestressed concrete-metal

Definitions

  • the present invention relates to a bridge, in particular to a long-span bridge, of the guyed type, and capable of carrying significant traffic thanks to the presence of roadways situated in superimposed planes, one of them being used for example for railways, and the other for car traffic (see for example, STRASSE UND VERKEHR, n ° 1, 12.01.73, pages 23 to 27, Zürich).
  • suspension bridges In the current state of the art, the crossing of large spans uses either suspension bridges or cable-stayed bridges.
  • Suspension bridges are economically justified for exceptional spans, but their flexibility poses problems for traffic, especially rail, and for aeroelastic stability.
  • Cable-stayed bridges for their part, do not exhibit the wind sensitivity of suspension bridges, particularly if the deck is constructed of concrete, a material which gives the structure sufficient weight and great rigidity. The weight, however, limits the spans, so that beyond the field of application of concrete cable-stayed bridges, decks with a mixed steel / concrete structure or entirely metallic decks have been used.
  • Lattice structures can also be used, because they make it possible to economically obtain great bending and torsional rigidity, while ensuring maximum transparency with respect to the wind.
  • such trellis structures generally combine steel and concrete, but despite considerable research in this field, no truly satisfactory solution has been found to transfer the forces between the members and the diagonals at the different nodes of the trellis. The long-term behavior of such solutions is unknown and cost prices remain high.
  • the object of the invention is to overcome all the drawbacks mentioned above, by proposing a new structure which is both light, rigid, and easy to produce, therefore economical.
  • this bridge having the particularity that the prestressing cable or cables of a diagonal beam are anchored to the edge of the upper member, cross transversely the lower member, then the diagonal beam which is symmetrical with respect to the longitudinal vertical plane of symmetry of the bridge , to come to anchor on the opposite edge of the upper chord.
  • the prestressing cable or cables of an auxiliary beam are also anchored in the upper chord, cross transversely the lower chord, pass through the auxiliary beam which is symmetrical with respect to the longitudinal vertical plane of symmetry of the bridge, and return s 'anchor on the upper chord.
  • the auxiliary beams are located at the intersection of vertical planes parallel to the axis, and of plane perpendicular to these vertical planes and containing the diagonal beams. An optimal distribution of forces is thus obtained.
  • the upper member is formed of a thin slab, stiffened by transverse beams located at the point where the diagonal beams and possibly the auxiliary beams join said upper member.
  • the lower member is of the metallic type with longitudinal caissons, with concrete blocks to ensure the connection with the prestressing cables of the diagonal and auxiliary beams.
  • the lower member is formed of precast concrete elements, assembled in the longitudinal direction.
  • the choice between these two solutions is, essentially, a matter of weight is cost.
  • the upper deck is formed by assembling prefabricated elements or cast in place, at least some of which carry a stop intended to retain the anchoring head d 'a shroud, and the adjacent element carries an auxiliary stop intended to come into abutment on the stop retaining the anchor head of the stay, this auxiliary stop being intended to retain the anchor head of a longitudinal prestressing cable of the apron, exerting a force directed longitudinally in the opposite direction of the shroud, so that the combined action of the shroud and the prestressing cable tends to clamp the two prefabricated elements against each other.
  • the bridge according to the invention is of the fan guyed type with at least one inverted V pylon to support the guy wires
  • the bridge according to the invention comprises an apron 1, suspended from guy lines 2, at regularly spaced points, these guy lines are fixed towards the top of the support mast, or pylon, 3.
  • the central span is shown with only eight elements, suspended by three guy wires on either side of the key.
  • the spacing of the shrouds is variable from 10 to 20 meters, and the number of shrouds in the central half-span can reach twenty to twenty five.
  • the deck comprises an upper chord 4, forming a roadway, and a lower chord 5, which forms a second roadway. These two members are connected by connecting beams oriented obliquely, 6, 7, better visible in the following figures.
  • Figure 2 shows an embodiment of the deck which has, on its lower member, a roadway with two lanes of traffic in each direction, and, on the lower member, a railway track.
  • Figure 3 shows another embodiment of the deck, for higher traffic, comprising, on the upper frame, pavements with three lanes of traffic in each direction, and, on the lower frame, three metro lines.
  • the bridge is of the type in which the shrouds 2 form an axial vertical ply, or two adjacent vertical plies, supporting the deck by its central part.
  • the guy wires support the deck by its edges.
  • connecting beams 6 connect the edges of the two members
  • auxiliary beams 7 connect the edge of the lower member to the upper member while remaining in a vertical plane axial.
  • the members 6 and 7 are contained in the same planes, oblique to the horizontal, and perpendicular to the vertical axial plane of symmetry of the structure.
  • the upper frame 4 is formed of a relatively thin slab 11, reinforced by transverse beams 12, located at its lower part and which carry hooking means 13 of the shrouds.
  • the lower chord 5 is, in the case of these figures, a metallic structure comprising longitudinal border boxes 14 and central 15.
  • the diagonal connecting beams 6 are hollow metal beams, which bear on the one hand on a lateral box 14 of the lower member, and on the other hand on a fitting 16 secured to the transverse beam 12.
  • the prestressing cables 17 of the diagonal connecting beams are anchored at one end to the edge 18 of the upper slab 11. They successively pass through a diagonal beam 6, the boxes 14 and 15 of the lower member, in a plane transverse to the bridge, and another diagonal beam 6 to hang on the opposite edge 18 of the slab 11.
  • the prestressing cables 19 of the auxiliary beams pass, similarly, successively through a connecting beam 7, the boxes 14 and 15 of the lower member, and the connecting beam 7. They are anchored, at their two ends, to the face top of beam 12.
  • Figure 5 is an enlarged partial view of Figure 2, to better show the structure of the lower deck.
  • the boxes 14 have, on their edges, oblique surfaces 20, perpendicular to the diagonal connecting beams 6, and on which these come to bear.
  • an auxiliary box 21 which widens downwards towards the center of the frame, serves as a support for the auxiliary beam 7.
  • the boxes are closed by oblique transverse partitions 20 ′, of inclination relative to the horizontal identical to that of the connecting beams.
  • the space in V cross section, defined by these two oblique transverse partitions 20 ′, is filled with concrete 21 ′, and contains the tubes 22 and 23 in which are placed the prestressing cables, respectively 17 and 19, for the transmission the prestressing tension at the lower chord. It is in the tubes 22 and 23 that the change of direction of the prestressing cables 17, 19 takes place.
  • These cross perpendicularly the longitudinal partitions 24 which separate the lateral boxes 14 from the central boxes 15. As can be seen in FIG. 5, these partitions 24 are placed to the right of the rails of the railway track.
  • Figures 7 and 8 are cross sections of a variant, in which the lower chord consists of an assembly of precast concrete elements 30, arranged longitudinally one after the other, as shown in the figure 4.
  • the elements 30 comprise a flat slab 31, which carries on its lateral edges a thickened rib 32, which in particular serves as a support for the diagonal 6 and auxiliary 7 connection beams, the latter coming to bear on the element 30 by the intermediate of a box 33, identical to the box 21 described with reference to FIGS. 5 and 6.
  • the successive elements 30 join together at the place where the connecting beams 6 and 7 hang. At their end, the elements 30 carry a lower reinforcement 34, the elements 34 coming to bear against one another at their lower end, and leaving between their upper part an empty space 35, roughly V-shaped, which is subsequently filled with concrete.
  • the tubes 36, 37 which contain and guide the prestressing cables 17 and 19 pass through the ends of the slabs 31 and through the reinforcements 34, to transmit the prestressing forces to the blocks 30.
  • Figure 9 shows a detail of the upper chord, which, like the lower chord of Figures 3, 7 and 8, is formed by an assembly of concrete elements, prefabricated or poured in place, resting on each other in the longitudinal direction.
  • Two elements 40, 41 are represented by their ends.
  • the element 40 carries a small block 42, which is used for anchoring a guy 2, which crosses the slab.
  • a second anchor block 43 facing it on the element 41. It is used for anchoring a prestressing cable 44, arranged longitudinally.
  • the two blocks 42, 43 have vertical, transverse surfaces, 45, 46, by which they come to bear one on the other. The tension of the shroud 2 and of the prestressing cable 44 therefore tends to keep them firmly in support.
  • Another longitudinal prestressing cable has been shown at 47, which crosses the junction of the elements 40 and 41, and will be anchored on elements located further in the longitudinal direction of the bridge, so as to ensure the rigidity of the assembly. of the upper chord.
  • the member has stops, the shape of which can correspond to that of the two solid masses 42 and 43 assembled, these stops each retaining the anchor head of a stay and at the same time retaining the anchor head of a longitudinal prestressing cable which exerts a horizontal force in the direction opposite to the horizontal force exerted by the stay.
  • FIG. 10 is a section of the structure at the level of a pylon 3.
  • This pylon is a metallic or concrete structure in the shape of an inverted V, the uprights of which rest on a common pile 50.
  • the deck 1 is located between the two uprights 51, 52 of the pylon.
  • the stability of the deck vis-à-vis the transverse horizontal forces is ensured by two oblique beams 53, 54, which bear on the pile 50 at the base of the uprights 51 and 52, and meet on a support piece 55 which is secured to the lower deck by a solid support 57, visible in section in Figure 4. This avoids asymmetrical and variable tensions on the uprights 51, 52 of the pylon.
  • Figure 11 shows a particularly advantageous construction method for the bridge according to the invention.
  • a movable beam 60 is mounted on the upper member 4 and fixed at two successive attachment points 61, 62 of diagonal connecting beams, constituting nodes of the spatial trellis.
  • the beam advances in cantilever beyond the already built part of the bridge, a length 63 of the upper chord is first put in place corresponding to the interval between two successive connecting beams in the longitudinal direction, then, thanks to a winch 64, the assembly formed by a corresponding length 65 of the lower member is simultaneously put in place, and the corresponding diagonal and auxiliary beams 66, 67.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Bathtub Accessories (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Cookers (AREA)
  • Panels For Use In Building Construction (AREA)

Claims (10)

1. Brücke aus einer Tafel (1) und Mitteln (2, 3) zum Abstützen dieser Tafel, wobei die Tafel aufweist:
- einen Obergurt (4), der eine Fahrbahn bildet,
- einen Untergurt (5), der eine weniger breite Fahrbahn als der Obergurt bildet,
- vorgespannte Verbindungsträger, sogenannte "Diagonale" (6), die schräg sowohl bezüglich der vertikalen wie auch bezüglich der Längsrichtung der Brücke verlaufen und die Ränder von Obergurt und Untergurt verbinden,
- vorgespannte Hilfs-Verbindungsträger (7), die in durch die Ränder des Untergurtes verlaufenden vertikalen Ebenen angeordnet sind,
- wobei das bzw. die Spannkabel (17) eines diagonalen Trägers (6) am Rand des Obergurtes verankert sind und quer durch den Untergurt und anschließend durch denjenigen diagonalen Träger verlaufen, der zu ihm bezüglich der vertikalen längsverlaufenden Symmetrieebene der Brücke symmetrisch ist, um am entgegengesetzten Rand des Obergurtes verankert zu werden.
2. Brücke nach Anspruch 1, dadurch gekennzeichnet, daß das bzw. die Spannkabel (19) eines Hilfsträgers (7) am Obergurt verankert sind und quer durch den Untergurt und anschließend durch denjenigen Hilfsträger verlaufen, der zu ihm bezüglich der längs verlaufenden vertikalen Symmetrieebene der Brücke symmetrisch ist.
3. Brücke nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Hilfsträger (7) an der Schnittstelle der durch die Ränder des Untergurtes verlaufenden vertikalen Ebenen und der schrägen Ebenen liegen, die senkrecht zu diesen vertikalen Ebenen verlaufen und die diagonalen Träger (6) enthalten.
4. Brücke nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Obergurt (4) aus einer dünnen Platte (11) geformt ist, die durch Querträger (12) versteift ist, welche sich an der Stelle befinden, wo die diagonalen Träger und ggf. die Hilfsträger mit dem Obergurt verbunden sind.
5. Brücke nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Untergurt als Untergurt mit längs verlaufenden metallischen Kästen (14, 15) mit Betonsockeln (21) ausgebildet ist, um die Verbindung mit den Spannkabeln (17, 19) der diagonalen Träger und Hilfsträger sicherzustellen.
6. Brücke nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Untergurt aus vorgefertigten Betonelementen (30) besteht, die in Längsrichtung zusammengesetzt sind.
7. Brücke nach einem der Ansprüche 1 bis 6, mit Schrägseilen in Strahlenform, dadurch gekennzeichnet, daß der Obergurt durch Zusammensetzen vorgefertigter oder vor Ort gegossener Elemente (40, 41) hergestellt ist, von denen zumindest einige einen Anschlag (42) zum Halten des Verankerungskopfes eines Schrägseiles (2) tragen und das benachbarte Element einen Hilfsanschlag (43) trägt, der an dem den Verankerungskopf des Schrägseiles haltenden Anschlag anliegt, wobei dieser Hilfsanschlag zum Halten des Verankerungskopfes eines längs verlaufenden Spannkabels (44) der Brückentafel dient und eine Kraft ausübt, die in Längsrichtung entgegengesetzt wie die des Schrägseiles gerichtet ist, so daß durch das Zusammenwirken des Schrägseiles und des Spannkabels die beiden vorgefertigten Elemente gegeneinander gedrückt werden.
8. Brücke nach einem der Ansprüche 1 bis 6, mit Schrägseilen in Strahlenform, dadurch gekennzeichnet, daß der Obergurt Anschläge aufweist, von denen jeder den Verankerungskopf eines Schrägseiles und gleichzeitig den Verankerungskopf eines längs verlaufenden Spannkabels hält, das eine horizontale Kraft in eine Richtung entgegengesetzt zu der von dem Schrägseil ausgeübten horizontalen Kraft ausübt.
9. Brücke nach einem der Ansprüche 1 bis 9, mit Schrägseilen in Strahlenform, die mindestens einen Pylon in Form eines umgekehrten V zum Abstützen der Schrägseile aufweist, dadurch gekennzeichnet, daß die Brückentafel zwischen den Stützen (51, 52) des Pylon angeordnet ist und daß die schrägen Streben (53, 54), die in der Querebene des Pylon angeordnet sind, die Brückentafel mit dem den Pylon tragenden Pfeiler (50) verbinden, um die Stabilität der Brückentafel bezüglich horizontaler Kräfte sicherzustellen.
10. Verfahren zum Herstellen einer Brücke nach einem der Ansprüche 1 bis 9, bei dem am Ende eines bereits montierten Abschnittes der Brückentafel einerseits eine einteilige Länge (63) des Obergurtes und andererseits eine Baueinheit angeordnet, die aus einer axialen Länge (65) des Untergurtes und dieser Länge zugeordneten diagonalen Verbindungsträgern und Hilfsverbindungsträgern (66, 67) besteht, und daß diese Länge des Obergurtes und diese Baueinheit gleichzeitig an dem bereits montierten Abschnitt der Brückentafel angesetzt wird, indem man sich hierbei eines beweglichen Trägers (60) bedient, der an dem bereits montierten Abschnitt der Brückentafel auskragend angebracht ist.
EP89400731A 1988-03-25 1989-03-16 Brückentafel für eine Brücke mit grosser Spannweite Expired - Lifetime EP0340051B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400731T ATE73187T1 (de) 1988-03-25 1989-03-16 Brueckentafel fuer eine bruecke mit grosser spannweite.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803957A FR2629111B1 (fr) 1988-03-25 1988-03-25 Tablier pour pont de grande longueur
FR8803957 1988-03-25

Publications (2)

Publication Number Publication Date
EP0340051A1 EP0340051A1 (de) 1989-11-02
EP0340051B1 true EP0340051B1 (de) 1992-03-04

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EP89400731A Expired - Lifetime EP0340051B1 (de) 1988-03-25 1989-03-16 Brückentafel für eine Brücke mit grosser Spannweite

Country Status (11)

Country Link
US (1) US4987629A (de)
EP (1) EP0340051B1 (de)
JP (1) JPH01284601A (de)
AT (1) ATE73187T1 (de)
CA (1) CA1307082C (de)
DE (1) DE68900901D1 (de)
DK (1) DK130089A (de)
ES (1) ES2030281T3 (de)
FR (1) FR2629111B1 (de)
GR (1) GR3004332T3 (de)
PT (1) PT90101B (de)

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CN103374879A (zh) * 2012-04-24 2013-10-30 上海市政工程设计研究总院（集团）有限公司 一种倒梯断面钢桁架斜拉桥边节点连接结构

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KR101171039B1 (ko) * 2010-09-02 2012-08-06 오베아룹코리아(주) 주경간 긴장수단을 이용한 일부 및 전부 타정식 사장교와 그 시공 방법
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KR101347677B1 (ko) 2012-10-11 2014-01-03 대영스틸산업주식회사 다목적 복층교량
KR101234294B1 (ko) * 2012-12-24 2013-02-18 대영스틸산업주식회사 다목적 복층교량
CH706630B1 (de) 2013-05-14 2013-12-31 S & P Clever Reinforcement Company Ag Verfahren zum Vorspannen eines Stahlbauwerkes sowie damit vorgespanntes Stahlbauwerk.
CN103556566B (zh) * 2013-11-21 2015-08-19 中铁第四勘察设计院集团有限公司 大跨度铁路斜拉桥主梁结构
CN104264584B (zh) * 2014-10-14 2017-01-18 中铁二院工程集团有限责任公司 预应力混凝土斜拉桥梁顶组合式索梁锚固结构
CN205474786U (zh) * 2014-12-21 2016-08-17 湖南科技大学 一种用于双层交通的多功能混凝土箱型梁桥
CN105714666B (zh) * 2014-12-21 2019-01-15 湖南科技大学 一种基于双层交通混凝土箱梁桥横向加劲环
CN105113382B (zh) * 2015-05-21 2017-03-01 中铁大桥勘测设计院集团有限公司 带副桁的钢桁架斜撑双腹板连接结构
CN104929033A (zh) * 2015-06-04 2015-09-23 长沙市规划设计院有限责任公司 “类双层”桥梁结构
CN107268421B (zh) * 2017-08-11 2022-11-01 湖南省交通规划勘察设计院有限公司 空间索面钢桁梁斜拉桥索梁锚固组件及空间索面钢桁梁斜拉桥
CN108505428B (zh) * 2018-05-23 2023-12-19 中铁第四勘察设计院集团有限公司 一种大夹角小半径多塔曲线斜拉桥
CN113152183A (zh) * 2021-04-13 2021-07-23 李益安 五岔路口二层立交桥
CN114960395B (zh) * 2022-07-11 2023-08-25 山西省交通规划勘察设计院有限公司 一种横向长挑臂闭口钢箱组合梁桥

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103374879A (zh) * 2012-04-24 2013-10-30 上海市政工程设计研究总院（集团）有限公司 一种倒梯断面钢桁架斜拉桥边节点连接结构

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ATE73187T1 (de) 1992-03-15
DK130089D0 (da) 1989-03-17
DK130089A (da) 1989-09-26
FR2629111B1 (fr) 1990-11-30
GR3004332T3 (de) 1993-03-31
ES2030281T3 (es) 1992-10-16
DE68900901D1 (de) 1992-04-09
JPH01284601A (ja) 1989-11-15
US4987629A (en) 1991-01-29
PT90101A (pt) 1989-11-10
EP0340051A1 (de) 1989-11-02
FR2629111A1 (fr) 1989-09-29
PT90101B (pt) 1994-03-31
CA1307082C (en) 1992-09-08

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