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EP2753760A1 - Metal girder suitable for producing a constituent element of the beam of a bridge - Google Patents

Metal girder suitable for producing a constituent element of the beam of a bridge

Info

Publication number
EP2753760A1
EP2753760A1 EP12754004.5A EP12754004A EP2753760A1 EP 2753760 A1 EP2753760 A1 EP 2753760A1 EP 12754004 A EP12754004 A EP 12754004A EP 2753760 A1 EP2753760 A1 EP 2753760A1
Authority
EP
European Patent Office
Prior art keywords
box
beam according
plate
fixed
beams
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.)
Granted
Application number
EP12754004.5A
Other languages
German (de)
French (fr)
Other versions
EP2753760B1 (en
Inventor
Philippe Matiere
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.)
Matiere SAS
Original Assignee
Matiere SAS
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 Matiere SAS filed Critical Matiere SAS
Publication of EP2753760A1 publication Critical patent/EP2753760A1/en
Application granted granted Critical
Publication of EP2753760B1 publication Critical patent/EP2753760B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
    • 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
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • the invention relates to a metal beam adapted to produce a component of the span of a bridge.
  • FR-A-2 858 338 discloses a metal bridge whose span is made from prefabricated elements. Such an element is formed by connecting, by spacers, metal beams. Two parallel beams and connected by spacers form a carrier element of a decking constituting the span. The number of connected load-bearing elements, and therefore of beams, corresponds to the width and the length of the span to be produced. These carrier elements are thus adapted to be easily connected by abutment, depending on the length of the span.
  • Each beam comprises a bottom flange and an upper flange in the form of an elongate, flat and narrow plate.
  • the soles are kept parallel and connected by a metal box constituting the main body of the beam.
  • the ends of the box, square or rectangular section, are equipped with connecting members for abutment beams between them.
  • each box is equipped at the bottom sole of several rounded legs each provided with a through hole and disposed parallel to a longitudinal axis of the box.
  • Two parallel tabs delimit between them a female connecting member, namely a housing for receiving a tab of complementary shape equipping the end of a box of another beam and forming a male connecting member.
  • Each end of the box is thus provided with three tabs forming a female connecting member and a male connection member.
  • the ends of the upper sole are adapted to allow the soles, when two beams are butted, to bear against one another.
  • connection is made between two prefabricated carrying members of specified length and width.
  • Such a construction involves a predefined orientation of each beam so that the connecting members of the male and female type are located in the lower part of the span, once the abutting beams. Despite the wedging performed by the upper flanges, the abutment length of such beams is limited. At the level of the connection zone between two beams, when the abutment length is maximum, each end of the caissons of the abutment beams must rest on an intermediate pillar.
  • the invention proposes to produce another type of beams to form a carrier element constituting the span of a metal bridge allowing the realization of long span length while reducing the number of intermediate support points.
  • the subject of the invention is a metal beam adapted to produce a constituent element of the span of a bridge and comprising two flat flanges, said lower and upper, held parallel to each other by a configured core.
  • a configured core in box with square or rectangular cross-section, characterized in that one end of the core of the beam is equipped with a male connecting member and a female connecting member arranged at mid-distance between the two bottom flanges and higher.
  • connecting members located in a median position on one of the ends of the box and alternating a male connection member and a female connecting member, it is possible to connect the beams together by ensuring a rigidity of the connection between beams such that it requires only one intermediate fulcrum of one or the other end of the abutment beams.
  • such a beam may incorporate one or more of the following features:
  • Each connecting member is provided with a circular through hole whose center is located in a median longitudinal plane of the box.
  • Each member is fixed on a plate extending outwardly of the volume of the box, each plate being in the extension of one of the side faces of the box.
  • the male member is monobloc with a plate.
  • the female member comprises two legs fixed on either side of a plate.
  • the female member defines between the legs, a receiving housing adapted to receive a male member of another beam.
  • the male member is formed by a leg similar to the tabs forming the female member.
  • the legs are triangular, their bases are fixed on the plates and their tops extending outwardly of the beam, beyond the ends of the soles.
  • An end of the housing comprises at least one receiving gutter of a connecting bar forming a stiffening member.
  • the bottom sole comprises, between the two plates, a cut access to the connecting zone between two butted beams.
  • One side of the box of one of the beams defining the maximum width of the bay is provided with a longitudinal bar equipped with bases adapted to receive posts constituting a protective barrier.
  • the bar is attached to the box by several angled brackets each fixed by a plate to the ribs.
  • FIG. 1 is a side view of a beam according to the invention
  • FIG. 2 is a view from above, on the same scale, of the beam of FIG. 1;
  • FIG. 3 is a partial, simplified side view, on the same scale, of the ends of two beams according to the invention in the pre-assembly position,
  • FIG. 4 is a partial, simplified side view of the ends of two beams of FIG. 3 assembled, one end of a beam bearing on an intermediate pillar;
  • FIG. 5 is a view, in perspective and on a larger scale, of an end of a beam according to the invention, the stiffening members being schematically illustrated,
  • FIGS. 6 and 7 are perspective views, similar and on the same scale as FIG. 5, of the ends of two beams respectively in the pre-assembled and assembled position and
  • FIG. 8 is a partial view, in perspective, of a beam according to the invention equipped with a device for fixing a protective barrier.
  • Figure 1 shows a beam 1 according to the invention.
  • This comprises a main body or core formed by an elongated metal box 2, with a square cross section.
  • the box 2 is rectangular in cross section.
  • This box 2 connects two parallel soles called bottom flanges 3 and upper 4.
  • the flanges 3, 4 are formed by flat, elongated plates, whose width and length are slightly greater than those of the box 2.
  • Ribs 5, known in and illustrated in particular in Figure 1 are fixed on a portion of the side faces 6 and 7 of the box 2. They are arranged regularly and perpendicularly to a longitudinal axis A of the box 2.
  • the ribs 5 extend outwardly of the caisson perpendicular to the faces 6 and 7.
  • the caisson 2 is divided into several compartments by internal partitions 50, shown in dashed lines in FIGS. 1 and 2. These partitions 50, parallel to the ribs 5, contribute to the rigidity of the caisson 2.
  • An end 8 of the box 2 is provided with two ribs 51, disposed on each face 6, 7 and connecting the flanges 3 and 4 over the entire height H of the box 2, at the corners thereof.
  • orifices 52 allow the fixing of spacers.
  • the ribs 51 are configured as flat bars. These ribs 51 are equipped, on one side, legs 510, triangular. These struts 510 connect the ends of the ribs 51 to the soles 3 and 4.
  • the other end 80 of the beam located on the left looking at FIGS. 1 and 2, is provided with male and female connecting members 810 known from the state of the art.
  • the end 8 of the box 2 comprises, in the extension of the side faces 6, 7 of the core of the beam, that is to say the box, to the left of the ribs 51 while looking at FIG. 1, two plates 9, 10. These plates 9 and 10 extend over the entire height H of the box 2 and connect the soles 3 and 4. They are perpendicular to the ribs 51.
  • a plate 9 is fixed on the end of a face 6 of the box 2 thus extending the latter. It comprises, in the middle position, a male type connecting member.
  • This male member 1 1 is formed by a tab generally of triangular shape, the base 12 is in the extension of the plate 9.
  • the base 12 is integral with material of the plate 9.
  • This male member 1 1 is thus disposed substantially halfway between the lower flanges 3 and upper 4. It extends partially beyond the flanges 3 and 4, towards the outside of the volume of the box 2.
  • This lug 1 1 has a rounded top 13 which extends beyond the plumb with the ends 300 and 400 of the soles 3 and 4.
  • the top 13 is equipped with a through 14 orifice, circular, whose center is located substantially in a plane P of the box 2.
  • the plane P is the median longitudinal plane of well 2.
  • the orifice 14 is arranged so that its center is substantially in line with the ends 300, 400 of the flanges 3 and 4.
  • a female-type connecting member 15 is mounted on the plate 10 situated in the extension of the face 7, opposite that 6 equipped with the male member 11.
  • the female connecting member 15 is formed by two tabs 150, 151, of shapes and dimensions similar to those of the tab 1 January.
  • the tabs 150, 151 are fixed on either side of the plate 10, for example by welding, gluing or bolting.
  • the dimensions of the space E formed between the two tabs 150, 151 are adapted to form a receiving housing, with minimum clearance, of a male-type tab 1 1 carried by the end 8 of a box 2 of another beam. In other words, the width of the space E is substantially equal to the thickness of the tab 1 January.
  • the legs 150, 151 are also located substantially mid-height of the box, at the same level as the leg 1 January. They are also each provided with a circular orifice 140, 141 whose center is also in the median plane P of the box 2.
  • the orifices 14, 140, 141 of the male 1 1 and female 15 members of the same box 2 are aligned .
  • the male members 1 1 and female 15 are arranged so that their respective orifices 14, 140, 141 are also aligned when a tab 1 1 of a box 2 is inserted between the tabs 150, 151 of another box 2.
  • the plate 10 is provided with a hollow 16, visible in dashed lines in Figures 1 and 5, located at the bottom of the space E and adapted to receive the top 13 of a lug 1 1 when inserted between the tabs 150, 151.
  • the lower sole 3 comprises a cutout 17, in this case of rectangular shape, to access from below the beam 1, looking at Figure 5, to the connecting zone between two butted beams.
  • the cutout 17 is formed in the end 300 of the sole 3, between the plates 9 and 10.
  • This cutout 17 allows the introduction of a jack allowing the removal of connecting rods 19, 20.
  • These bars, section circular, are inserted on a provisional basis. They allow guiding the ends 8 of two beams to butt. Once these are connected and held in position by pins, not shown, inserted into the orifices 14, 140, 141, they are removed, as shown in Figure 4. Alternatively, they remain in position.
  • the side faces 6, 7 of the box 2, at the junction between the faces 6, 7 and the flange 4, to the right of the rib 51 by looking at Figure 5, have a shrinkage configured gutter 18 rounded bottom.
  • These gutters 18 are arranged parallel to the longitudinal axis A of the beam 1 and they open on both sides of the struts 510. They allow, as shown in particular in Figures 5 to 7, the insertion, provisional , The connecting bars 19, 20. These allow to align the orifices 14, 140, 141 to set up the connecting pins in the orifices of the abutment beams.
  • cylinders not shown, are introduced into the gutters 18. These cylinders push the bars 19 out of the gutters 18. To remove the bars 20, the installation of cylinders is not hindered by the presence a sole 4 and does not require a gutter.
  • the ribs 51 are provided at the level of the connection zone with the lower sole 3 with an orifice allowing the passage of a connecting bar 20, similar to the bar 19.
  • the shape of the tabs forming the male and female connecting members is different.
  • they are rectangular and / or the number of through holes for the insertion of pins is different. Nevertheless, in all cases these tabs are located so that their holes are centered in the median plane P of the box.
  • Such an arrangement of connecting members between two abutting beams, with provisional connecting bars 19, makes it possible to produce long lengths of abutting beams, with a minimum deflection between the beams and with a reduced clearance between two beams.
  • the rigidity of such a connection makes it possible, on the one hand, to produce large span lengths and, on the other hand, requires only a fulcrum on one or other of the ends of the beams 1 splines, when the length of the span requires an intermediate support point.
  • Such a configuration is shown in FIG. 4.
  • the rigidity of the connection facilitates the installation of the span by language, in particular for long span lengths.
  • the caissons of the beams intended to form the lateral edges of the span are, as illustrated in FIG. 8, provided with a longitudinal bar 21.
  • This bar 21 is disposed on a face 6 or 7 of the box 2, parallel to the longitudinal axis A of the box 2. It is located in the vicinity of the upper flange 4, on the face 6 or 7 of the box 2, said outer face .
  • This bar 21 is not fixed directly on the face 6 or 7 of the box but held in position by several bent supports 22, configured in L.
  • These supports 22 comprise a square section tube 220, one end 221 is fixed to the bar 21, for example by welding.
  • the tube 220 is connected perpendicular to the bar 21.
  • a plate 222 provided with orifices 223 is mounted in the vicinity of the other end 224 of the tube 220.
  • This plate 222 is fixed, for example by bolting, on the ribs 5, 51.
  • the supports 22 are regularly distributed over the entire length of the box 2 and support the bar 21 which extends over the entire length of the box 2.
  • This bar 21 thus forms a support for bases 23 adapted to receive posts 24 constituting a protective barrier.
  • a base 23 is shown to the right of the figure in the form of a square plate provided with four holes 25 distributed at the corners of the plate.
  • the shape and / or the number of orifices are different.
  • the base 23 is illustrated, to the right of FIG. 8, in the pre-assembly position, opposite a foot 26, of complementary shape to a post 24. This foot 26 is bolted to the base 23, as illustrated in FIG. left side of Figure 8.
  • the bases 23 are fixed, for example, by welding, on the bars 21, more precisely on a face 210 said upper, facing the span of the bridge when the beam 1 is in position.
  • the fixing the bases 23 is advantageously carried out on site, the bars 21 and the supports 22 are also fixed on the box 2 by bolting on site. In another embodiment, the bars 21 and the supports 22 are fixed on the box in the factory.
  • Such a configuration allows mounting, in situ, the barriers that are provided on site, this from standard prefabricated elements. It is therefore no longer necessary to specifically manufacture boxes to support posts 24 corresponding to each type of barrier. Any box is able to be equipped with any type and / or the number of posts 24 barrier, according to the regulations of the area where the bridge is installed.
  • Such a bar 21 may also be mounted a posteriori, on a box 2 of a beam 1 of a bridge already in place, provided that the box is equipped with ribs similar to the ribs 5 and 51.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A metal girder suitable for producing a constituent element of the beam of a bridge comprising two planar flanges (3, 4), referred to as upper and lower, held parallel to one another by a core configured as a casing (2) with a square or rectangular transverse section. One end (8) of the core (2) of the girder is provided with a male connecting member (11) and a female connecting member (15) arranged at mid-distance between the lower flange (3) and upper flange (4).

Description

POUTRE METALLIQUE ADAPTEE POUR REALISER UN ELEMENT CONSTITUTIF DE  METAL BEAM ADAPTED FOR REALIZING A CONSTITUENT ELEMENT OF
LA TRAVEE D'UN PONT  THE WORK OF A BRIDGE
L'invention a trait à une poutre métallique adaptée pour réaliser un élément constitutif de la travée d'un pont. The invention relates to a metal beam adapted to produce a component of the span of a bridge.
On connaît par FR-A-2 858 338 un pont métallique dont la travée est réalisée à partir d'éléments préfabriqués. Un tel élément est formé en reliant, par des entretoises, des poutres métalliques. Deux poutres parallèles ainsi reliées par des entretoises forment un élément porteur d'un platelage constitutif de la travée. Le nombre d'éléments porteurs reliés, donc de poutres, correspond à la largeur et à la longueur de la travée à réaliser. Ces éléments porteurs sont ainsi adaptés pour être aisément reliés par aboutement, en fonction de la longueur de la travée.  FR-A-2 858 338 discloses a metal bridge whose span is made from prefabricated elements. Such an element is formed by connecting, by spacers, metal beams. Two parallel beams and connected by spacers form a carrier element of a decking constituting the span. The number of connected load-bearing elements, and therefore of beams, corresponds to the width and the length of the span to be produced. These carrier elements are thus adapted to be easily connected by abutment, depending on the length of the span.
Chaque poutre comprend une semelle inférieure et une semelle supérieure, en forme de plaque allongée, plane et étroite. Les semelles sont maintenues parallèles et reliées par un caisson métallique constitutif du corps principal de la poutre. Les extrémités du caisson, à section carrée ou rectangulaire, sont équipées d'organes de liaison permettant l'aboutement des poutres entre elles. En l'espèce, chaque caisson est équipé au niveau de la semelle inférieure de plusieurs pattes arrondies munies chacune d'un orifice traversant et disposées parallèlement à un axe longitudinal du caisson. Deux pattes parallèles délimitent entre elles un organe de liaison femelle, à savoir un logement de réception d'une patte de forme complémentaire équipant l'extrémité d'un caisson d'une autre poutre et formant un organe de liaison mâle. Chaque extrémité du caisson est ainsi pourvue de trois pattes formant un organe de liaison femelle et un organe de liaison mâle.  Each beam comprises a bottom flange and an upper flange in the form of an elongate, flat and narrow plate. The soles are kept parallel and connected by a metal box constituting the main body of the beam. The ends of the box, square or rectangular section, are equipped with connecting members for abutment beams between them. In this case, each box is equipped at the bottom sole of several rounded legs each provided with a through hole and disposed parallel to a longitudinal axis of the box. Two parallel tabs delimit between them a female connecting member, namely a housing for receiving a tab of complementary shape equipping the end of a box of another beam and forming a male connecting member. Each end of the box is thus provided with three tabs forming a female connecting member and a male connection member.
Les extrémités de la semelle supérieure sont adaptées pour permettre aux semelles, lorsque deux poutres sont aboutées, de prendre appui l'une sur l'autre.  The ends of the upper sole are adapted to allow the soles, when two beams are butted, to bear against one another.
En insérant des goupilles de blocage dans les orifices des pattes équipant les extrémités de deux poutres aboutées et reliées par des entretoises, on réalise la liaison entre deux éléments porteurs préfabriqués, de longueur et de largeur déterminées.  By inserting locking pins in the orifices of the tabs equipping the ends of two abutting girders and connected by spacers, the connection is made between two prefabricated carrying members of specified length and width.
Une telle construction implique une orientation prédéfinie de chaque poutre afin que les organes de liaison de type mâle et femelle soient situés en partie inférieure de la travée, une fois les poutres aboutées. Malgré le calage réalisé par les semelles supérieures, la longueur d'aboutement de telles poutres est limitée. Au niveau de la zone de liaison entre deux poutres, lorsque la longueur d'aboutement est maximale, chaque extrémité des caissons des poutres aboutées doit prendre appui sur un pilier intermédiaire. L'invention propose de réaliser un autre type de poutres pour former un élément porteur constitutif de la travée d'un pont métallique permettant la réalisation de grandes longueurs de travée tout en diminuant le nombre de points d'appui intermédiaires. Such a construction involves a predefined orientation of each beam so that the connecting members of the male and female type are located in the lower part of the span, once the abutting beams. Despite the wedging performed by the upper flanges, the abutment length of such beams is limited. At the level of the connection zone between two beams, when the abutment length is maximum, each end of the caissons of the abutment beams must rest on an intermediate pillar. The invention proposes to produce another type of beams to form a carrier element constituting the span of a metal bridge allowing the realization of long span length while reducing the number of intermediate support points.
A cet effet, l'invention a pour objet une poutre métallique adaptée pour réaliser un élément constitutif de la travée d'un pont et comprenant deux semelles planes, dites inférieure et supérieure, maintenues parallèles l'une à l'autre par une âme configurée en caisson à section transversale carrée ou rectangulaire, caractérisée en ce qu'une extrémité de l'âme de la poutre est équipée d'un organe de liaison mâle et d'un organe de liaison femelle disposés à mi-distance entre les deux semelles inférieure et supérieure.  For this purpose, the subject of the invention is a metal beam adapted to produce a constituent element of the span of a bridge and comprising two flat flanges, said lower and upper, held parallel to each other by a configured core. in box with square or rectangular cross-section, characterized in that one end of the core of the beam is equipped with a male connecting member and a female connecting member arranged at mid-distance between the two bottom flanges and higher.
Avec des organes de liaison situés en position médiane sur une des extrémités du caisson et en alternant un organe de liaison mâle et un organe de liaison femelle, il est possible de relier des poutres entre elles en assurant une rigidité de la liaison entre poutres telle qu'elle ne nécessite qu'un seul point d'appui intermédiaire de l'une ou l'autre des extrémités des poutres aboutées.  With connecting members located in a median position on one of the ends of the box and alternating a male connection member and a female connecting member, it is possible to connect the beams together by ensuring a rigidity of the connection between beams such that it requires only one intermediate fulcrum of one or the other end of the abutment beams.
Selon des aspects avantageux mais non obligatoires de l'invention, une telle poutre peut incorporer une ou plusieurs des caractéristiques suivantes :  According to advantageous but non-mandatory aspects of the invention, such a beam may incorporate one or more of the following features:
- chaque organe de liaison est pourvu d'un orifice circulaire traversant dont le centre est situé dans un plan longitudinal médian du caisson.  - Each connecting member is provided with a circular through hole whose center is located in a median longitudinal plane of the box.
- Chaque organe est fixé sur une platine s'étendant vers l'extérieur du volume du caisson, chaque platine étant dans le prolongement d'une des faces latérales du caisson.  - Each member is fixed on a plate extending outwardly of the volume of the box, each plate being in the extension of one of the side faces of the box.
- L'organe mâle est monobloc avec une platine.  - The male member is monobloc with a plate.
- L'organe femelle comprend deux pattes fixées de part et d'autre d'une platine. - The female member comprises two legs fixed on either side of a plate.
- L'organe femelle définit, entre les pattes, un logement de réception adapté pour recevoir un organe mâle d'une autre poutre. - The female member defines between the legs, a receiving housing adapted to receive a male member of another beam.
- L'organe mâle est formé par une patte similaire aux pattes formant l'organe femelle.  - The male member is formed by a leg similar to the tabs forming the female member.
- Les pattes sont de forme triangulaire, leurs bases étant fixées sur les platines et leurs sommets s'étendant vers l'extérieur de la poutre, au-delà des extrémités des semelles.  - The legs are triangular, their bases are fixed on the plates and their tops extending outwardly of the beam, beyond the ends of the soles.
- Une extrémité du caisson comprend au moins une gouttière de réception d'une barre de liaison formant un organe de raidissement.  - An end of the housing comprises at least one receiving gutter of a connecting bar forming a stiffening member.
- La semelle inférieure comprend, entre les deux platines, une découpe d'accès à la zone de liaison entre deux poutres aboutées.  - The bottom sole comprises, between the two plates, a cut access to the connecting zone between two butted beams.
- Une face du caisson d'une des poutres définissant la largeur maximale de la travée est pourvue d'une barre longitudinale équipée d'embases propres à recevoir des poteaux constitutifs d'une barrière de protection. - La barre est fixée au caisson par plusieurs supports coudés fixés chacun par une platine aux nervures. - One side of the box of one of the beams defining the maximum width of the bay is provided with a longitudinal bar equipped with bases adapted to receive posts constituting a protective barrier. - The bar is attached to the box by several angled brackets each fixed by a plate to the ribs.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lecture de la description qui va suivre d'une poutre réalisée conformément à l'invention, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :  The invention will be better understood and other advantages thereof will appear more clearly on reading the following description of a beam made according to the invention, given solely by way of example and made with reference to in the accompanying drawings in which:
- la figure 1 est une vue de côté d'une poutre conforme à l'invention,  FIG. 1 is a side view of a beam according to the invention,
- la figure 2 est une vue de dessus, à la même échelle, de la poutre de la figure 1 , FIG. 2 is a view from above, on the same scale, of the beam of FIG. 1;
- la figure 3 est une vue partielle, simplifiée et de côté, à la même échelle, des extrémités de deux poutres conformes à l'invention en position de pré-assemblage, FIG. 3 is a partial, simplified side view, on the same scale, of the ends of two beams according to the invention in the pre-assembly position,
- la figure 4 est une vue partielle, simplifiée et de côté, des extrémités de deux poutres de la figure 3 assemblées, une extrémité d'une poutre étant en appui sur un pilier intermédiaire,  FIG. 4 is a partial, simplified side view of the ends of two beams of FIG. 3 assembled, one end of a beam bearing on an intermediate pillar;
- la figure 5 est une vue, en perspective et à plus grande échelle, d'une extrémité d'une poutre conforme à l'invention, des organes de raidissement étant schématiquement illustrés,  FIG. 5 is a view, in perspective and on a larger scale, of an end of a beam according to the invention, the stiffening members being schematically illustrated,
- les figures 6 et 7 sont des vues en perspective, similaires et à la même échelle que la figure 5, des extrémités de deux poutres respectivement en position pré-assemblée et assemblée et  FIGS. 6 and 7 are perspective views, similar and on the same scale as FIG. 5, of the ends of two beams respectively in the pre-assembled and assembled position and
- la figure 8 est une vue partielle, en perspective, d'une poutre conforme à l'invention équipée d'un dispositif de fixation d'une barrière de protection.  - Figure 8 is a partial view, in perspective, of a beam according to the invention equipped with a device for fixing a protective barrier.
La figure 1 représente une poutre 1 conforme à l'invention. Celle-ci comprend un corps principal ou âme formé par un caisson 2 métallique allongé, à section transversale carrée. En variante, le caisson 2 est à section transversale rectangulaire. Ce caisson 2 relie deux semelles parallèles dites semelles inférieure 3 et supérieure 4. Les semelles 3, 4 sont formées par des plaques planes, allongées, dont la largeur et la longueur sont légèrement supérieures à celles du caisson 2. Des nervures 5, connues en soi et illustrées notamment à la figure 1 , sont fixées sur une partie des faces latérales 6 et 7 du caisson 2. Elles sont disposées régulièrement et perpendiculairement à un axe longitudinal A du caisson 2. Les nervures 5 s'étendent vers l'extérieur du caisson perpendiculairement aux faces 6 et 7. Elles sont pourvues d'orifices permettant d'assurer la fixation d'entretoises, non illustrées, reliant les caissons de deux poutres 1 parallèles. Le caisson 2 est divisé en plusieurs compartiments par des cloisons internes 50, illustrées en pointillés aux figures 1 et 2. Ces cloisons 50, parallèles aux nervures 5, participent à la rigidité du caisson 2. Une extrémité 8 du caisson 2 est pourvue de deux nervures 51 , disposées sur chaque face 6, 7 et reliant les semelles 3 et 4 sur toute la hauteur H du caisson 2, au niveau des angles de celui-ci. Comme pour les nervures 5, des orifices 52 permettent la fixation d'entretoises. Les nervures 51 sont configurées en barres plates. Ces nervures 51 sont équipées, sur une face, de jambes de force 510, triangulaires. Ces jambes de force 510 relient les extrémités des nervures 51 aux semelles 3 et 4. Figure 1 shows a beam 1 according to the invention. This comprises a main body or core formed by an elongated metal box 2, with a square cross section. Alternatively, the box 2 is rectangular in cross section. This box 2 connects two parallel soles called bottom flanges 3 and upper 4. The flanges 3, 4 are formed by flat, elongated plates, whose width and length are slightly greater than those of the box 2. Ribs 5, known in and illustrated in particular in Figure 1, are fixed on a portion of the side faces 6 and 7 of the box 2. They are arranged regularly and perpendicularly to a longitudinal axis A of the box 2. The ribs 5 extend outwardly of the caisson perpendicular to the faces 6 and 7. They are provided with orifices for securing spacers, not shown, connecting the boxes of two parallel beams 1. The caisson 2 is divided into several compartments by internal partitions 50, shown in dashed lines in FIGS. 1 and 2. These partitions 50, parallel to the ribs 5, contribute to the rigidity of the caisson 2. An end 8 of the box 2 is provided with two ribs 51, disposed on each face 6, 7 and connecting the flanges 3 and 4 over the entire height H of the box 2, at the corners thereof. As for the ribs 5, orifices 52 allow the fixing of spacers. The ribs 51 are configured as flat bars. These ribs 51 are equipped, on one side, legs 510, triangular. These struts 510 connect the ends of the ribs 51 to the soles 3 and 4.
L'autre extrémité 80 de la poutre, située à gauche en regardant les figures 1 et 2, est pourvue d'organes de liaison mâle 800 et femelle 810 connus de l'état de l'art.  The other end 80 of the beam, located on the left looking at FIGS. 1 and 2, is provided with male and female connecting members 810 known from the state of the art.
En partie droite des figures 1 et 2, l'extrémité 8 du caisson 2 comprend, dans le prolongement des faces latérales 6, 7 de l'âme de la poutre, c'est-à-dire du caisson, à gauche des nervures 51 en regardant la figure 1 , deux platines 9, 10. Ces platines 9 et 10 s'étendent sur toute la hauteur H du caisson 2 et relient les semelles 3 et 4. Elles sont perpendiculaires aux nervures 51 . Une platine 9 est fixée sur l'extrémité d'une face 6 du caisson 2 prolongeant ainsi ce dernier. Elle comprend, en position médiane, un organe de liaison de type mâle. Cet organe mâle 1 1 est formé par une patte globalement de forme triangulaire, dont la base 12 est dans le prolongement de la platine 9. Avantageusement, la base 12 est monobloc de matière avec la platine 9. Cet organe mâle 1 1 est ainsi disposé sensiblement à mi-distance entre les semelles inférieure 3 et supérieure 4. Il s'étend partiellement au-delà des semelles 3 et 4, en direction de l'extérieur du volume du caisson 2. Cette patte 1 1 a un sommet arrondi 13 qui s'étend au-delà de l'aplomb des extrémités 300 et 400 des semelles 3 et 4. Le sommet 13 est équipé d'un orifice 14 traversant, circulaire, dont le centre est sensiblement situé dans un plan P du caisson 2. Le plan P est le plan longitudinal médian du caisson 2.  In the right part of Figures 1 and 2, the end 8 of the box 2 comprises, in the extension of the side faces 6, 7 of the core of the beam, that is to say the box, to the left of the ribs 51 while looking at FIG. 1, two plates 9, 10. These plates 9 and 10 extend over the entire height H of the box 2 and connect the soles 3 and 4. They are perpendicular to the ribs 51. A plate 9 is fixed on the end of a face 6 of the box 2 thus extending the latter. It comprises, in the middle position, a male type connecting member. This male member 1 1 is formed by a tab generally of triangular shape, the base 12 is in the extension of the plate 9. Advantageously, the base 12 is integral with material of the plate 9. This male member 1 1 is thus disposed substantially halfway between the lower flanges 3 and upper 4. It extends partially beyond the flanges 3 and 4, towards the outside of the volume of the box 2. This lug 1 1 has a rounded top 13 which extends beyond the plumb with the ends 300 and 400 of the soles 3 and 4. The top 13 is equipped with a through 14 orifice, circular, whose center is located substantially in a plane P of the box 2. The plane P is the median longitudinal plane of well 2.
L'orifice 14 est disposé de sorte que son centre se trouve sensiblement à l'aplomb des extrémités 300, 400 des semelles 3 et 4.  The orifice 14 is arranged so that its center is substantially in line with the ends 300, 400 of the flanges 3 and 4.
Comme cela apparaît plus clairement aux figures 5 et 6, un organe de liaison 15 de type femelle est montée sur la platine 10 située dans le prolongement de la face 7, opposée à celle 6 équipée de l'organe mâle 1 1 .  As is more clearly apparent in FIGS. 5 and 6, a female-type connecting member 15 is mounted on the plate 10 situated in the extension of the face 7, opposite that 6 equipped with the male member 11.
L'organe de liaison femelle 15 est formé par deux pattes 150, 151 , de formes et de dimensions similaires à celles de la patte 1 1 . Les pattes 150, 151 sont fixées de part et d'autre de la platine 10, par exemple par soudage, par collage ou par boulonnage. Les dimensions de l'espace E ménagé entre les deux pattes 150, 151 sont adaptées pour former un logement de réception, à jeu minima, d'une patte de type mâle 1 1 portée par l'extrémité 8 d'un caisson 2 d'une autre poutre. En d'autres termes, la largeur de l'espace E est sensiblement égale à l'épaisseur de la patte 1 1 . Les pattes 150, 151 sont également situées sensiblement à mi-hauteur du caisson, au même niveau que la patte 1 1 . Elles sont également pourvues chacune d'un orifice 140, 141 circulaire dont le centre est également dans le plan médian P du caisson 2. Les orifices 14, 140, 141 des organes mâle 1 1 et femelle 15 d'un même caisson 2 sont alignés. Les organes mâle 1 1 et femelle 15 sont disposés de sorte que leurs orifices respectifs 14, 140,141 sont également alignés lorsqu'une patte 1 1 d'un caisson 2 est insérée entres les pattes 150, 151 d'un autre caisson 2. Pour assurer la mise en place de la patte 1 1 entre les pattes 150, 151 , la platine 10 est pourvue d'un creux 16, visible en pointillé aux figures 1 et 5, situé au fond de l'espace E et propre à recevoir le sommet 13 d'une patte 1 1 lorsqu'elle est insérée entre les pattes 150, 151 . The female connecting member 15 is formed by two tabs 150, 151, of shapes and dimensions similar to those of the tab 1 January. The tabs 150, 151 are fixed on either side of the plate 10, for example by welding, gluing or bolting. The dimensions of the space E formed between the two tabs 150, 151 are adapted to form a receiving housing, with minimum clearance, of a male-type tab 1 1 carried by the end 8 of a box 2 of another beam. In other words, the width of the space E is substantially equal to the thickness of the tab 1 January. The legs 150, 151 are also located substantially mid-height of the box, at the same level as the leg 1 January. They are also each provided with a circular orifice 140, 141 whose center is also in the median plane P of the box 2. The orifices 14, 140, 141 of the male 1 1 and female 15 members of the same box 2 are aligned . The male members 1 1 and female 15 are arranged so that their respective orifices 14, 140, 141 are also aligned when a tab 1 1 of a box 2 is inserted between the tabs 150, 151 of another box 2. To ensure the establishment of the tab 1 1 between the tabs 150, 151, the plate 10 is provided with a hollow 16, visible in dashed lines in Figures 1 and 5, located at the bottom of the space E and adapted to receive the top 13 of a lug 1 1 when inserted between the tabs 150, 151.
La semelle inférieure 3 comprend une découpe 17, en l'espèce de forme rectangulaire, permettant d'accéder à partir du dessous de la poutre 1 , en regardant la figure 5, à la zone de liaison entre deux poutres aboutées. La découpe 17 est ménagée dans l'extrémité 300 de la semelle 3, entre les platines 9 et 10. Cette découpe 17 permet la mise en place d'un vérin permettant le retrait de barres de liaison 19, 20. Ces barres, à section circulaire, sont insérées à titre provisoire. Elles permettent le guidage des extrémités 8 de deux poutres à abouter. Une fois celles-ci reliées et maintenues en position par des goupilles, non illustrées, insérées dans les orifices 14, 140, 141 , elles sont retirées, comme illustré à la figure 4. En variante, elles restent en position.  The lower sole 3 comprises a cutout 17, in this case of rectangular shape, to access from below the beam 1, looking at Figure 5, to the connecting zone between two butted beams. The cutout 17 is formed in the end 300 of the sole 3, between the plates 9 and 10. This cutout 17 allows the introduction of a jack allowing the removal of connecting rods 19, 20. These bars, section circular, are inserted on a provisional basis. They allow guiding the ends 8 of two beams to butt. Once these are connected and held in position by pins, not shown, inserted into the orifices 14, 140, 141, they are removed, as shown in Figure 4. Alternatively, they remain in position.
Les faces latérales 6, 7 du caisson 2, au niveau de la jonction entre les faces 6, 7 et la semelle 4, à droite de la nervure 51 en regardant la figure 5, présentent un retrait configuré en gouttière 18 à fond arrondi. Ces gouttières 18 sont disposées parallèlement à l'axe longitudinal A de la poutre 1 et elles débouchent de part et d'autres des jambes de force 510. Elles permettent, comme cela est représenté notamment aux figures 5 à 7, l'insertion, provisoire, des barres de liaison 19, 20. Ces dernières permettent d'aligner les orifices 14, 140, 141 pour mettre en place les goupilles de liaison dans les orifices des poutres aboutées. Une fois la liaison réalisée, des vérins, non représentés, sont introduits dans les gouttières 18. Ces vérins repoussent les barres 19 hors des gouttières 18. Pour retirer les barres 20, la mise en place de vérins n'est pas gênée par la présence d'une semelle 4 et ne nécessite pas de gouttière.  The side faces 6, 7 of the box 2, at the junction between the faces 6, 7 and the flange 4, to the right of the rib 51 by looking at Figure 5, have a shrinkage configured gutter 18 rounded bottom. These gutters 18 are arranged parallel to the longitudinal axis A of the beam 1 and they open on both sides of the struts 510. They allow, as shown in particular in Figures 5 to 7, the insertion, provisional , The connecting bars 19, 20. These allow to align the orifices 14, 140, 141 to set up the connecting pins in the orifices of the abutment beams. Once the connection is made, cylinders, not shown, are introduced into the gutters 18. These cylinders push the bars 19 out of the gutters 18. To remove the bars 20, the installation of cylinders is not hindered by the presence a sole 4 and does not require a gutter.
Comme illustrées aux figures 5 à 7, les nervures 51 sont pourvues, au niveau de la zone de liaison avec la semelle inférieure 3 d'un orifice permettant le passage d'une barre de liaison 20, similaire à la barre 19.  As illustrated in FIGS. 5 to 7, the ribs 51 are provided at the level of the connection zone with the lower sole 3 with an orifice allowing the passage of a connecting bar 20, similar to the bar 19.
Dans un mode de réalisation non illustré, la forme des pattes formant les organes de liaison mâle et femelle est différente. Par exemple, elles sont rectangulaires et/ou le nombre d'orifices traversant permettant l'insertion de goupilles est différent. Néanmoins, dans tous les cas ces pattes sont situées de sorte que leurs orifices sont centrés dans le plan P médian du caisson. In a non-illustrated embodiment, the shape of the tabs forming the male and female connecting members is different. For example, they are rectangular and / or the number of through holes for the insertion of pins is different. Nevertheless, in all cases these tabs are located so that their holes are centered in the median plane P of the box.
Une telle disposition des organes de liaison entre deux poutres aboutées, avec des barres de liaison 19, 20 provisoires, permet de réaliser de grandes longueurs de poutres aboutées, avec une flèche minimale entre les poutres et avec un jeu réduit entre deux poutres. La rigidité d'une telle liaison permet, d'une part, de réaliser des longueurs de travée importantes et, d'autre part, ne nécessite qu'un point d'appui sur l'une ou l'autre des extrémités des poutres 1 aboutées, lorsque la longueur de la travée nécessite un point appui intermédiaire. Une telle configuration est représentée à la figure 4. Par ailleurs, la rigidité de la liaison facilite la mise en place de la travée par langage, en particulier pour des grandes longueurs de travée.  Such an arrangement of connecting members between two abutting beams, with provisional connecting bars 19, makes it possible to produce long lengths of abutting beams, with a minimum deflection between the beams and with a reduced clearance between two beams. The rigidity of such a connection makes it possible, on the one hand, to produce large span lengths and, on the other hand, requires only a fulcrum on one or other of the ends of the beams 1 splines, when the length of the span requires an intermediate support point. Such a configuration is shown in FIG. 4. Moreover, the rigidity of the connection facilitates the installation of the span by language, in particular for long span lengths.
Les caissons des poutres destinés à former les bords latéraux de la travée, c'est- à-dire ceux définissant la largeur maximum de la travée, sont, comme illustré à la figure 8, pourvus d'une barre longitudinale 21 . Cette barre 21 est disposée sur une face 6 ou 7 du caisson 2, parallèlement à l'axe longitudinal A du caisson 2. Elle est située au voisinage de la semelle supérieure 4, sur la face 6 ou 7 du caisson 2, dite face externe. Cette barre 21 n'est pas fixée directement sur la face 6 ou 7 du caisson mais maintenue en position par plusieurs supports coudés 22, configurés en L. Ces supports 22 comportent un tube à section carrée 220 dont une extrémité 221 est fixée à la barre 21 , par exemple par soudage. Le tube 220 est relié perpendiculairement à la barre 21 .  The caissons of the beams intended to form the lateral edges of the span, that is to say those defining the maximum width of the span, are, as illustrated in FIG. 8, provided with a longitudinal bar 21. This bar 21 is disposed on a face 6 or 7 of the box 2, parallel to the longitudinal axis A of the box 2. It is located in the vicinity of the upper flange 4, on the face 6 or 7 of the box 2, said outer face . This bar 21 is not fixed directly on the face 6 or 7 of the box but held in position by several bent supports 22, configured in L. These supports 22 comprise a square section tube 220, one end 221 is fixed to the bar 21, for example by welding. The tube 220 is connected perpendicular to the bar 21.
Une platine 222 pourvue d'orifices 223 est montée au voisinage de l'autre extrémité 224 du tube 220. Cette platine 222 est fixée, par exemple par boulonnage, sur les nervures 5, 51 . Ainsi il est possible de régler la position des platines 222 sur les nervures 5, 51 selon les orifices utilisés pour la fixation.  A plate 222 provided with orifices 223 is mounted in the vicinity of the other end 224 of the tube 220. This plate 222 is fixed, for example by bolting, on the ribs 5, 51. Thus it is possible to adjust the position of the plates 222 on the ribs 5, 51 according to the orifices used for fixing.
Les supports 22 sont régulièrement répartis sur toute la longueur du caisson 2 et supportent la barre 21 qui s'étend sur toute la longueur du caisson 2.  The supports 22 are regularly distributed over the entire length of the box 2 and support the bar 21 which extends over the entire length of the box 2.
Cette barre 21 forme ainsi un support pour des embases 23 propres à recevoir des poteaux 24 constitutifs d'une barrière de protection. A la figure 8, une embase 23 est représentée, à droite de la figure, sous forme d'une plaque carrée pourvue de quatre orifices 25 répartis au niveau des angles de la plaque. En variante, la forme et/ou le nombre d'orifices sont différents.  This bar 21 thus forms a support for bases 23 adapted to receive posts 24 constituting a protective barrier. In Figure 8, a base 23 is shown to the right of the figure in the form of a square plate provided with four holes 25 distributed at the corners of the plate. In a variant, the shape and / or the number of orifices are different.
L'embase 23 est illustrée, à droite de la figure 8, en position de prémontage, en regard d'un pied 26, de forme complémentaire d'un poteau 24. Ce pied 26 est boulonné sur l'embase 23, comme illustré en partie gauche de la figure 8. Les embases 23 sont fixées, par exemple, par soudage, sur les barres 21 , plus précisément sur une face 210 dite supérieure, orientée vers la travée du pont lorsque la poutre 1 est en position. La fixation des embases 23 est avantageusement, réalisée sur site, les barres 21 et les supports 22 étant également fixés sur le caisson 2 par boulonnage, sur site. Dans un autre mode de réalisation, les barres 21 et les supports 22 sont fixés sur le caisson en usine. The base 23 is illustrated, to the right of FIG. 8, in the pre-assembly position, opposite a foot 26, of complementary shape to a post 24. This foot 26 is bolted to the base 23, as illustrated in FIG. left side of Figure 8. The bases 23 are fixed, for example, by welding, on the bars 21, more precisely on a face 210 said upper, facing the span of the bridge when the beam 1 is in position. The fixing the bases 23 is advantageously carried out on site, the bars 21 and the supports 22 are also fixed on the box 2 by bolting on site. In another embodiment, the bars 21 and the supports 22 are fixed on the box in the factory.
II est ainsi possible de fixer sur les barres 21 longitudinales des embases 23, dont le nombre, la forme et/ou la répartition sont adaptés aux différents types de poteaux 24 de barrière répondant aux différentes normes et/ou aux dimensions appliquées dans le pays dans lequel le pont est installé.  It is thus possible to fix on the longitudinal bars 21 of the bases 23, whose number, shape and / or distribution are adapted to the different types of barrier posts 24 corresponding to the different standards and / or the dimensions applied in the country in which bridge is installed.
Une telle configuration permet un montage, in situ, des barrières qui sont fournies sur place, cela à partir d'éléments préfabriqués standards. Il n'est donc plus nécessaire de fabriquer spécifiquement des caissons destinés à supporter des poteaux 24 correspondant à chaque type de barrière. Tout caisson est à même d'être équipé de tout type et/ou du nombre de poteaux 24 de barrière, selon la réglementation de la zone où le pont est installé. Une telle barre 21 peut également être montée a posteriori, sur un caisson 2 d'une poutre 1 d'un pont déjà en place, pour autant que le caisson soit équipé de nervures similaires aux nervures 5 et 51 .  Such a configuration allows mounting, in situ, the barriers that are provided on site, this from standard prefabricated elements. It is therefore no longer necessary to specifically manufacture boxes to support posts 24 corresponding to each type of barrier. Any box is able to be equipped with any type and / or the number of posts 24 barrier, according to the regulations of the area where the bridge is installed. Such a bar 21 may also be mounted a posteriori, on a box 2 of a beam 1 of a bridge already in place, provided that the box is equipped with ribs similar to the ribs 5 and 51.
Un tel montage permet, en cas de choc dans la barrière, de préserver la structure du pont, quel que soit le type de barrière monté sur la barre 21 . En effet, soit c'est les poteaux 24 eux-mêmes qui se déforment voire qui cèdent sous le choc, soit c'est la liaison entre le support coudé 22 et la barre 21 , de facto la platine 222, qui se déforme ou rompt, soit les boulons de liaison entre les différents éléments qui cèdent cela sans qu'il y ait une modification de la résistance structurelle du caisson 2, donc de la travée du pont.  Such an assembly makes it possible, in the event of an impact in the barrier, to preserve the structure of the bridge, whatever the type of barrier mounted on the bar 21. Indeed, it is the posts 24 themselves that deform or even give in shock, or is the connection between the bent support 22 and the bar 21, de facto the plate 222, which deforms or breaks or the connecting bolts between the various elements that yield that without there being a modification of the structural strength of the caisson 2, therefore of the span of the bridge.
En cas de rupture de la barrière, il suffit de fixer d'autres embases 23 voire une autre barre 21 sur le caisson 2, pour remettre en état le tablier du pont.  In case of breakage of the barrier, simply attach other bases 23 or another bar 21 on the box 2, to restore the bridge deck.

Claims

REVENDICATIONS
1 . - Poutre métallique adaptée pour réaliser un élément constitutif de la travée d'un pont et comprenant deux semelles (3, 4) planes, dites inférieure et supérieure, maintenues parallèles l'une à l'autre par une âme configurée en caisson (2) à section transversale carrée ou rectangulaire, caractérisée en ce qu'une extrémité (8) de l'âme (2) de la poutre (1 ) est équipée d'un organe de liaison mâle (1 1 ) et d'un organe de liaison femelle (15) disposés à mi-distance entre les deux semelles inférieure (3) et supérieure (4).  1. - Metal beam adapted to produce a component of the span of a bridge and comprising two flanges (3, 4) planes, said lower and upper, maintained parallel to each other by a core configured in a box (2) with square or rectangular cross-section, characterized in that one end (8) of the web (2) of the beam (1) is equipped with a male connecting member (1 1) and a connecting member female (15) disposed midway between the two lower flanges (3) and upper (4).
2. - Poutre selon la revendication 1 , caractérisée en ce que chaque organe de liaison (1 1 , 15) est pourvu d'un orifice circulaire (14, 140, 141 ) traversant dont le centre est situé dans un plan (P) longitudinal médian du caisson (2).  2. - Beam according to claim 1, characterized in that each connecting member (1 1, 15) is provided with a circular orifice (14, 140, 141) through which the center is located in a plane (P) longitudinal median of the caisson (2).
3. - Poutre selon la revendication 1 ou 2, caractérisée en ce que chaque organe (1 1 , 15) est fixé sur une platine (9, 10) s'étendant vers l'extérieur du volume du caisson (2), chaque platine (9, 10) étant dans le prolongement d'une des faces latérales (6, 7) du caisson (2).  3. - Beam according to claim 1 or 2, characterized in that each member (1 1, 15) is fixed on a plate (9, 10) extending outwardly of the volume of the box (2), each plate (9, 10) being in the extension of one of the side faces (6, 7) of the box (2).
4. - Poutre selon la revendication 3, caractérisée en ce que l'organe mâle (1 1 ) est monobloc avec une platine (9).  4. - Beam according to claim 3, characterized in that the male member (1 1) is integral with a plate (9).
5. - Poutre selon la revendication 3, caractérisée en ce que l'organe femelle (15) comprend deux pattes (150, 151 ) fixées de part et d'autre d'une platine (10).  5. - Beam according to claim 3, characterized in that the female member (15) comprises two lugs (150, 151) fixed on either side of a plate (10).
6.- Poutre selon la revendication 5, caractérisée en ce que l'organe femelle (15) définit, entre les pattes (150, 151 ), un logement de réception (E) adapté pour recevoir un organe mâle (1 1 ) d'une autre poutre (1 ).  6. Beam according to claim 5, characterized in that the female member (15) defines, between the tabs (150, 151), a receiving housing (E) adapted to receive a male member (1 1) of another beam (1).
7.- Poutre selon la revendication 6, caractérisée en ce que l'organe mâle est formé par une patte (1 1 ) similaire aux pattes (150, 151 ) formant l'organe femelle (15).  7. A beam according to claim 6, characterized in that the male member is formed by a lug (1 1) similar to the tabs (150, 151) forming the female member (15).
8.- Poutre selon les revendications 5 et 7, caractérisée en ce que les pattes (1 1 , 8. Beam according to claims 5 and 7, characterized in that the lugs (1 1,
150, 151 ) sont de forme triangulaire, leurs bases (12) étant fixées sur les platines (9, 10) et leurs sommets (13) s'étendant vers l'extérieur de la poutre (1 ), au-delà des extrémités (300, 400) des semelles (3, 4). 150, 151) are of triangular shape, their bases (12) being fixed on the plates (9, 10) and their vertices (13) extending towards the outside of the beam (1), beyond the ends ( 300, 400) of the soles (3, 4).
9. - Poutre selon l'une des revendications précédentes, caractérisée en ce qu'une extrémité du caisson (2) comprend au moins une gouttière (18) de réception d'une barre de liaison (19) formant un organe de raidissement.  9. - Beam according to one of the preceding claims, characterized in that one end of the box (2) comprises at least one gutter (18) for receiving a connecting bar (19) forming a stiffening member.
10. - Poutre selon l'une des revendications 3 à 9, caractérisée en ce que la semelle inférieure (3) comprend, entre les deux platines (9, 10), une découpe (17) d'accès à la zone de liaison entre deux poutres (1 ) aboutées.  10. - Beam according to one of claims 3 to 9, characterized in that the lower sole (3) comprises, between the two plates (9, 10), a cutout (17) for access to the connection zone between two beams (1) butted.
1 1 .- Poutre selon l'une des revendications précédentes, caractérisée en ce qu'une face (6, 7) du caisson (2) d'une des poutres définissant la largeur maximale de la travée est pourvue d'une barre longitudinale (21 ) équipée d'embases (23) propres à recevoir des poteaux (24) constitutifs d'une barrière de protection. 1 1 .- Beam according to one of the preceding claims, characterized in that a face (6, 7) of the box (2) of one of the beams defining the maximum width of the span is provided with a longitudinal bar (21) equipped with bases (23) adapted to receive posts (24) constituting a protective barrier.
12.- Poutre selon la revendication 1 1 , caractérisée en ce que la barre (21 ) est fixée au caisson (2) par plusieurs supports coudés (22) fixés chacun par une platine (222) aux nervures (5, 51 ).  12. A beam according to claim 1 1, characterized in that the bar (21) is fixed to the box (2) by a plurality of bent supports (22) each fixed by a plate (222) to the ribs (5, 51).
EP12754004.5A 2011-09-06 2012-09-05 Metal girder suitable for producing a constituent element of the beam of a bridge Active EP2753760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2011009363A MX352718B (en) 2011-09-06 2011-09-06 Metal girder suitable for producing a constituent element of the beam of a bridge.
PCT/EP2012/067267 WO2013034572A1 (en) 2011-09-06 2012-09-05 Metal girder suitable for producing a constituent element of the beam of a bridge

Publications (2)

Publication Number Publication Date
EP2753760A1 true EP2753760A1 (en) 2014-07-16
EP2753760B1 EP2753760B1 (en) 2017-11-08

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EP12754004.5A Active EP2753760B1 (en) 2011-09-06 2012-09-05 Metal girder suitable for producing a constituent element of the beam of a bridge

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EP (1) EP2753760B1 (en)
MX (1) MX352718B (en)
WO (1) WO2013034572A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638274B (en) * 2016-12-15 2018-04-17 湖南大学 A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard segment
CN112064513A (en) * 2020-09-11 2020-12-11 合肥清雅装饰工程有限公司 Civil small-sized fast-spliced bridge equipment
CN112942053B (en) * 2021-02-07 2024-08-09 中铁四局集团有限公司 Bolt type steel box girder and manufacturing method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396196A1 (en) * 1984-06-14 1990-11-07 Williams Fairey Engineering Ltd. Bridge construction
FR2858338B1 (en) 2003-08-01 2015-03-13 Soc Civ D Brevets Matiere PROCESS FOR MAKING A METAL BRIDGE BEAM AND BEAM OR WORK SO REALIZED
GB0602291D0 (en) * 2006-02-04 2006-03-15 Qinetiq Ltd Modular bridge construction
WO2008020716A1 (en) * 2006-08-17 2008-02-21 Research Institute Of Industrial Science & Technology Modular steel bridge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013034572A1 *

Also Published As

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WO2013034572A1 (en) 2013-03-14
MX352718B (en) 2017-12-06
EP2753760B1 (en) 2017-11-08
MX2011009363A (en) 2013-03-18

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