EP1162314B1 - Connecting device for a metal tube and a concrete beam or plate - Google Patents
Connecting device for a metal tube and a concrete beam or plate Download PDFInfo
- Publication number
- EP1162314B1 EP1162314B1 EP20010401453 EP01401453A EP1162314B1 EP 1162314 B1 EP1162314 B1 EP 1162314B1 EP 20010401453 EP20010401453 EP 20010401453 EP 01401453 A EP01401453 A EP 01401453A EP 1162314 B1 EP1162314 B1 EP 1162314B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- concrete
- plate
- holes
- 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.)
- Expired - Lifetime
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- 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 invention relates to steel-concrete composite structures comprising a trellis of metal tubes diagonally arranged between two concrete slabs or beams, in particular for producing a bridge deck, the roof of a building or an area, pontoon or platform.
- connection device has been described in the publication FR 2,723,424 which comprises at each end of a trellis tube a metal plate welded to the end of the tube perpendicular to the axis of the tube, said plate being in abutment with the beam or slab and having a plurality of holes with which cooperate fastening means by screwing the plate to bars embedded in the concrete of the beam or slab.
- An object of the present invention is to provide embodiments of such a device, advantageous in terms of their ease of maintenance and particularly effective.
- the device is completed by removable cables which pass inside the tube, which pass through the plates located at both ends of the tube and the beams or slabs and which are put in tension as prestressing cables.
- These cables significantly increase the resistance of the system vis-à-vis the tensile forces without having to substantially increase the dimensions of the device.
- FIG. 1 shows a straight cylindrical metal tube (1) to which is welded peripherally (s welds), at each end, a metal plate (2) which has in plan the polygonal shape shown in FIG. 2 and which has holes (3 ), for example four holes, located outside the tube and evenly distributed around the axis (4) of the tube.
- the tube with its two plates is supported on two parallel faces (5) of two concrete beams (P) partially visible in Figure 1: the tube is perpendicular to these faces (4) but in reality it is oblique to the planes of the beams, as illustrated for the example in Figure 6.
- a seal is interposed between the plate and the concrete surface.
- the device for connecting a tube to a beam is constituted, at each end of the tube, by a plurality of bars (6) which have been embedded in the concrete of the beam during the casting thereof and which have been attached by any suitable means, fittings (7) which are accessible in housing (8) formed in the concrete.
- These connectors have a threaded bore in which is screwed a rod (9) which passes through a hole (3) of the plate and a nut (10) is screwed onto the rod until it comes into pressure on the plate, possibly with interposition of a washer (11).
- a removable cap (12) is provided to protect the bolt.
- connection between a tube and a beam or slab is completed by removable cables which pass inside the tube, which pass through the plates and the beams and which are stretched in a manner known per se as prestressing.
- the plates (2) in addition to the holes (3) provided around the grip of the tube for fixing the plates to the bars embedded in the concrete, present inside the tube holes (3 ') for the passage of the cables, for example two diagonally opposite holes (Figure 5).
- the holes (3) located outside the tube for fastening the tube to the bars (6) anchored in the concrete are regularly distributed around the tube either individually ( Figure 2) or in pairs ( Figure 5) and the holes (3 ') located inside the tube for the passage of the prestressing cables are regularly distributed between the holes (3) or between the pairs of holes (3) ( Figure 5).
- Each prestressing cable passes into a sheath (13) which comprises a section of sheath (13a) placed inside the tube and sheath sections (13b) placed in place in the beams and nested at their ends in hollow metal parts (14) taken in the concrete beams.
- the cables themselves pass through these parts and are removably retained by conventional means, for example jaws (15) accessible outside the beams.
- FIG. 7 shows the end of a duct section (13b) fitted into a hollow metal piece (14), and the strands of a cable (16) are seen in this figure. coming out of the room and stuck in a bit (15).
- the bars and their removable connections ensure resistance to the ultimate limit states and also removable cables ensure non-decompression under stress of fatigue.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
L'invention concerne les structures mixtes acier-béton comportant un treillis de tubes métalliques disposés diagonalement entre deux dalles ou poutres en béton, notamment pour la réalisation d'un tablier de pont, de la couverture d'un bâtiment ou d'une aire, d'un ponton ou d'une plateforme.The invention relates to steel-concrete composite structures comprising a trellis of metal tubes diagonally arranged between two concrete slabs or beams, in particular for producing a bridge deck, the roof of a building or an area, pontoon or platform.
Elle a plus précisément pour objet les connexions du treillis avec le poutres ou dalles en béton.More specifically, it relates to the connections of the trellis with the beams or concrete slabs.
On a décrit dans la publication FR 2 723 424 un dispositif de connexion qui comprend à chaque extrémité d'un tube du treillis une platine métallique soudée à l'extrémité du tube perpendiculairement à l'axe du tube, ladite platine étant en appui sur la poutre ou la dalle et présentant une pluralité de trous avec lesquels coopèrent des moyens de fixation par vissage de la platine à des barres noyées dans le béton de la poutre ou de la dalle.A connection device has been described in the publication FR 2,723,424 which comprises at each end of a trellis tube a metal plate welded to the end of the tube perpendicular to the axis of the tube, said plate being in abutment with the beam or slab and having a plurality of holes with which cooperate fastening means by screwing the plate to bars embedded in the concrete of the beam or slab.
Le document US-A-5505 033décrit un dispositif de connexion d'un tube métallique droit disposés entre deux dalles ou poutres en béton et connecté à chaque extrémité aux poutres ou aux dalles par un dispositif de connexion qui comprend une platine métallique soudée à l'extrémité du tube perpendiculairement à l'axe du tube, ladite platine étant en appui sur la poutre ou la dalle et présentant une pluralité de trous avec lesquels coopèrent des moyens de fixation par vissage de la platine à des barres noyées dans le béton de la poutre ou de la dalle, les trous étant formés dans la platine autour du tube et les moyens de fixation qui coopèrent avec ces trous pour fixer la platine aux barres étant démontables.US-A-5505 033describes a device for connecting a straight metal tube arranged between two slabs or concrete beams and connected at each end to the beams or slabs by a connecting device which comprises a metal plate welded to the end of the tube perpendicular to the axis of the tube, said plate being supported on the beam or the slab and having a plurality of holes with which cooperate means for fixing by screwing the plate to bars embedded in the concrete of the beam or the slab, the holes being formed in the plate around the tube and the fastening means which cooperate with these holes to fix the plate to the bars being removable.
Un but de la présente invention est de fournir des réalisations d'un tel dispositif, avantageuses quant à leur facilité de maintenance et particulièrement performantes.An object of the present invention is to provide embodiments of such a device, advantageous in terms of their ease of maintenance and particularly effective.
Selon l'invention définie par la revendication 1, le dispositif est complété par des câbles démontables qui passent à l'intérieur du tube, qui traversent les platines situées aux deux extrémités du tube ainsi que les poutres ou les dalles et qui sont mis en tension comme des câbles de précontrainte. Ces câbles augmentent de façon considérable la résistance du système vis-à-vis des efforts de traction sans avoir à augmenter sensiblement les dimensions du dispositif.According to the invention defined by
On décrira ci-après des exemples non limitatifs de mise en oeuvre de l'invention, en référence aux figures du dessin joint sur lequel :
- la figure 1 est une coupe d'un tube métallique comprimé fixé entre deux poutres en béton au moyen de dispositifs de connexion connus, le plan de coupe étant le plan I-I de la figure 2 ;
- la figure 2 est une vue en plan d'une platine du dispositif de connexion de la réalisation de la figure 1 ;
- la figure 3 est une vue de détails à plus grande échelle de l'une des fixations de la platine à la poutre ;
- la figure 4 est une coupe analogue à celle de la figure 1 mais dans le cas d'un tube tendu et précontraint;
- la figure 5 est une vue en plan d'une platine du dispositif de connexion selon la réalisation de la figure 4 ;
- la figure 6 est une vue d'un tube tendu, équipé selon l'invention de câbles de précontrainte, en situation entre deux poutres ;
- la figure 7 est un schéma de l'extrémité d'une gaine, et
- la figure 8 est un schéma des extrémités hautes des câbles de précontrainte d'un dispositif de connexion selon les figures 6 et 7.
- Figure 1 is a section of a compressed metal tube fixed between two concrete beams by means of known connection devices, the sectional plane being the plane II of Figure 2;
- Figure 2 is a plan view of a plate of the connection device of the embodiment of Figure 1;
- Figure 3 is an enlarged detail view of one of the fasteners of the plate to the beam;
- Figure 4 is a section similar to that of Figure 1 but in the case of a tensioned and prestressed tube;
- Figure 5 is a plan view of a plate of the connection device according to the embodiment of Figure 4;
- Figure 6 is a view of a stretched tube, equipped according to the invention of prestressing cables, in situation between two beams;
- FIG. 7 is a diagram of the end of a sheath, and
- FIG. 8 is a diagram of the high ends of the prestressing cables of a connection device according to FIGS. 6 and 7.
La figure 1 montre un tube métallique droit cylindrique (1) auquel est soudé périphériquement (soudures s), à chaque extrémité, une platine métallique (2) qui a en plan la forme polygonale représentée sur la figure 2 et qui présente des trous (3), par exemple quatre trous, situés à l'extérieur du tube et régulièrement répartis autour de l'axe (4) du tube.FIG. 1 shows a straight cylindrical metal tube (1) to which is welded peripherally (s welds), at each end, a metal plate (2) which has in plan the polygonal shape shown in FIG. 2 and which has holes (3 ), for example four holes, located outside the tube and evenly distributed around the axis (4) of the tube.
Le tube avec ses deux platines est en appui sur deux faces parallèles (5) de deux poutres (P) en béton visibles partiellement sur la figure 1 : le tube est perpendiculaire à ces faces (4) mais en réalité il est oblique par rapport aux plans des poutres, comme cela est illustré pour l'exemple sur la figure 6. Eventuellement, un joint est interposé entre la platine et la surface en béton.The tube with its two plates is supported on two parallel faces (5) of two concrete beams (P) partially visible in Figure 1: the tube is perpendicular to these faces (4) but in reality it is oblique to the planes of the beams, as illustrated for the example in Figure 6. Optionally, a seal is interposed between the plate and the concrete surface.
Le dispositif de connexion d'un tube à une poutre est constitué, à chaque extrémité du tube, d'une pluralité de barres (6) qui ont été noyées dans le béton de la poutre lors du coulage de celui-ci et auxquelles ont été fixés par un moyen quelconque approprié, des raccords (7) qui sont accessibles dans des logements (8) formés dans le béton. Ces raccords présentent un alésage fileté dans lequel est vissée une tige (9) qui traverse un trou (3) de la platine et un écrou (10) est vissé sur la tige jusqu'à venir en pression sur la platine, éventuellement avec interposition d'une rondelle (11). De préférence, un chapeau (12) amovible est mis en place pour protéger le boulon.The device for connecting a tube to a beam is constituted, at each end of the tube, by a plurality of bars (6) which have been embedded in the concrete of the beam during the casting thereof and which have been attached by any suitable means, fittings (7) which are accessible in housing (8) formed in the concrete. These connectors have a threaded bore in which is screwed a rod (9) which passes through a hole (3) of the plate and a nut (10) is screwed onto the rod until it comes into pressure on the plate, possibly with interposition of a washer (11). Preferably, a removable cap (12) is provided to protect the bolt.
Selon l'invention, la connexion entre un tube et une poutre ou dalle est complétée par des câbles démontables qui passent à l'intérieur du tube, qui traversent les platines et les poutres et qui sont tendus de façon en soi connue comme des câbles de précontrainte.According to the invention, the connection between a tube and a beam or slab is completed by removable cables which pass inside the tube, which pass through the plates and the beams and which are stretched in a manner known per se as prestressing.
Dans le cas illustré sur les figures 4 à 7, les platines (2), outre les trous (3) prévus autour de l'emprise du tube pour la fixation des platines aux barres noyées dans le béton, présentent à l'intérieur du tube des trous (3') pour le passage des câbles, par exemple deux trous diagonalement opposés (figure 5).In the case illustrated in FIGS. 4 to 7, the plates (2), in addition to the holes (3) provided around the grip of the tube for fixing the plates to the bars embedded in the concrete, present inside the tube holes (3 ') for the passage of the cables, for example two diagonally opposite holes (Figure 5).
De préférence, les trous (3) situés à l'extérieur du tube pour la fixation du tube aux barres (6) ancrées dans le béton sont régulièrement répartis autour du tube soit individuellement (figure 2), soit par couples (figure 5) et les trous (3') situés à l'intérieur du tube pour le passage des câbles de précontrainte sont régulièrement répartis entre les trous (3) ou entre les couples de trous (3) (figure 5).Preferably, the holes (3) located outside the tube for fastening the tube to the bars (6) anchored in the concrete are regularly distributed around the tube either individually (Figure 2) or in pairs (Figure 5) and the holes (3 ') located inside the tube for the passage of the prestressing cables are regularly distributed between the holes (3) or between the pairs of holes (3) (Figure 5).
Chaque câble de précontrainte, passe dans une gaine (13) qui comprend un tronçon de gaine (13a) mise en place à l'intérieur du tube et des tronçons de gaine (13b) mis en place dans les poutres et emboîtés à leurs extrémités dans des pièces métalliques creuses (14) prises dans le béton des poutres. Les câbles eux-mêmes traversent ces pièces et sont retenus de façon démontable par des moyens classiques, par exemple des mors (15) accessibles à l'extérieur des poutres.Each prestressing cable passes into a sheath (13) which comprises a section of sheath (13a) placed inside the tube and sheath sections (13b) placed in place in the beams and nested at their ends in hollow metal parts (14) taken in the concrete beams. The cables themselves pass through these parts and are removably retained by conventional means, for example jaws (15) accessible outside the beams.
On a représenté à plus grande échelle sur la figure 7, l'extrémité d'un tronçon de gaine (13b) emboîtée dans une pièce métallique creuse (14) et l'on voit sur cette figure les brins d'un câble (16) qui sortent de la pièce et sont coincés dans un mors (15).FIG. 7 shows the end of a duct section (13b) fitted into a hollow metal piece (14), and the strands of a cable (16) are seen in this figure. coming out of the room and stuck in a bit (15).
Ces brins ont été préalablement tendus au moyen de vérins, comme les vérins (17) représentés sur la figure 8, de façon en soi connue.These strands were previously stretched by means of jacks, like the jacks (17) shown in FIG. 8, in a manner known per se.
Les barres et leurs connexions démontables assurent la résistance aux états limites ultimes et les câbles également démontables assurent la non décompression sous sollicitation de fatigue.The bars and their removable connections ensure resistance to the ultimate limit states and also removable cables ensure non-decompression under stress of fatigue.
Pour la mise en oeuvre d'un dispositif selon l'invention, équipé de câbles de précontrainte, on réalise les opérations suivantes :
- mise en place des gaines (13a) dans le tube (1),
- soudage au tube des platines (2) munies de leurs perçages (3,3') en sorte que les perçages (3') soient au droit des gaines,
- mise en place dans les coffrages des poutres ou des dalles, des gaines (13b), des pièces métalliques (14) et des barres (6) avec leurs raccords (7), aux endroits appropriés ,et coulage du béton,
- mise en place et vissage des tiges (8) sur les raccords (7) et vissage des écrous sur les tiges,
- enfilage des câbles dans les gaines (13a,13b),
- mise en traction de ces câbles et enlèvement des vérins.
- placing sheaths (13a) in the tube (1),
- welding the tubes (2) with their bores (3,3 ') to the tube so that the bores (3') are at the right of the sleeves,
- placing in the formwork of beams or slabs, sheaths (13b), metal parts (14) and bars (6) with their connections (7), at the appropriate places, and pouring concrete,
- placing and screwing the rods (8) on the connectors (7) and screwing the nuts on the rods,
- threading the cables in the ducts (13a, 13b),
- pulling these cables and removing the cylinders.
L'invention n'est pas limitée aux réalisations qui ont été décrites.The invention is not limited to the embodiments that have been described.
Claims (8)
- Device for connecting a straight metal tube (1) and a concrete beam or slab (P), for a hybrid steel-concrete structure comprising the metal tube arranged diagonally between two concrete slabs or beams and connected at each end to the concrete beams or slabs by a connecting device which comprises a metal plate (2) welded to the end of the tube at right angles to the axis (4) of the tube, the said plate (2) resting on the beam or the slab (P) and having a number of holes (3) with which means for fixing, by screwing, the plate to bars (6) embedded in the concrete of the beam or of the slab collaborate, the holes (3) being formed in the plate around the tube (1) and the fixing means (7, 9, 10) which collaborate with these holes for fixing the plate to the bars being removable, characterized in that the connection between the tube and the beams or slabs is supplemented by removable cables (16) which pass along inside the tube (1), which pass through the plates (2) and the beams or slabs (P) and which are tensioned as prestressing cables.
- Device according to Claim 1, in which these fixing means comprise threaded rods (9) which are screwed detachably into connectors (7) fixed to the ends of the bars (6) embedded in the concrete of the beam or of the slab, these rods passing through the holes (3) in the plate and having ends projecting from the plate, onto which ends nuts (10) are screwed and tightened down onto the plate (2).
- Device according to Claim 1, in which the device connecting a tube to a beam consists, at each end of the tube, of a number of bars (6) which were embedded in the concrete of the beam when the latter was cast and to which couplings (7) have been fixed, which couplings are accessible in housings (8) formed in the concrete, these couplings having a threaded bore into which is screwed a rod (9) which passes through a hole (3) in the plate, a nut (10) being screwed onto the rod until it presses down on the plate.
- Device according to Claim 1, in which the plates (2), apart from having the holes (3) provided around the footing of the tube for fixing the plates to the bars embedded in the concrete, have, inside the tube, holes (3') for the passage of the prestressing cables.
- Device according to Claim 4, in which the holes (3) located on the outside of the tube for fixing the bars (6) anchored in the concrete to the tube are uniformly distributed around the tube (1) either individually or in pairs, and the holes (3') located inside the tube for the passage of the prestressing cables are uniformly distributed between the holes (3) or between the pairs of holes (3).
- Device according to Claim 1, in which the prestressing cables (16) pass through lengths of sheath (13a) situated in the tubes (1) and through lengths of sheath (13b) situated in the beams or slabs (P) and are pushed at their ends into hollow metal parts (14) set in the concrete of the beams or slabs.
- Structure comprising a lattice of metal tubes (1) arranged obliquely between two concrete beams or slabs (P), characterized in that the tubes are connected to the beams or slabs by devices according to one of Claims 1 to 6.
- Application of a structure according to Claim 7, to the production of a bridge deck, a roof structure, a pontoon or a platform.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0007203A FR2809757B1 (en) | 2000-06-06 | 2000-06-06 | DEVICE FOR CONNECTING A METAL TUBE AND A CONCRETE BEAM OR SLAB, STRUCTURE INCLUDING A CONNECTED MESH AND APPLICATION OF THE STRUCTURE |
| FR0007203 | 2000-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1162314A1 EP1162314A1 (en) | 2001-12-12 |
| EP1162314B1 true EP1162314B1 (en) | 2006-11-29 |
Family
ID=8850998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010401453 Expired - Lifetime EP1162314B1 (en) | 2000-06-06 | 2001-06-06 | Connecting device for a metal tube and a concrete beam or plate |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1162314B1 (en) |
| JP (1) | JP4706129B2 (en) |
| DE (1) | DE60124816T2 (en) |
| ES (1) | ES2275636T3 (en) |
| FR (1) | FR2809757B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6722436B2 (en) | 2002-01-25 | 2004-04-20 | Precision Drilling Technology Services Group Inc. | Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas |
| CN1322206C (en) * | 2004-03-15 | 2007-06-20 | 河海大学 | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced |
| CN115354889B (en) * | 2022-07-20 | 2023-11-03 | 广州城建职业学院 | Air football court of assembled building structure with sponge function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2520777A1 (en) * | 1982-01-29 | 1983-08-05 | Bouygues Sa | METHOD AND DEVICES FOR REALIZING A BRIDGE APRON AND SIMILAR STRUCTURES, AND ARTICLES OBTAINED |
| US5505033A (en) * | 1988-12-06 | 1996-04-09 | 501 Hitachi Metals Ltd. | Column base structure and connection arrangement |
| FR2723424B1 (en) | 1994-08-05 | 1996-10-31 | Bouygues Sa | DEVICE AND METHOD FOR REALIZING A CONNECTION BETWEEN A CONCRETE BEAM AND SLAB AND OBLIQUELY PLACED METAL PROFILE, THE CONNECTIONS THUS MADE AND APPLICATION TO STRUCTURES |
| JPH11181880A (en) * | 1997-12-17 | 1999-07-06 | Nippon Steel Corp | Connective structure of steel member with closed section |
| JP3948809B2 (en) * | 1998-02-05 | 2007-07-25 | 三井住友建設株式会社 | Joining structure and joining method between concrete member and steel pipe member, and concrete / steel composite truss bridge |
-
2000
- 2000-06-06 FR FR0007203A patent/FR2809757B1/en not_active Expired - Fee Related
-
2001
- 2001-06-06 EP EP20010401453 patent/EP1162314B1/en not_active Expired - Lifetime
- 2001-06-06 ES ES01401453T patent/ES2275636T3/en not_active Expired - Lifetime
- 2001-06-06 JP JP2001171645A patent/JP4706129B2/en not_active Expired - Fee Related
- 2001-06-06 DE DE2001624816 patent/DE60124816T2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1162314A1 (en) | 2001-12-12 |
| FR2809757A1 (en) | 2001-12-07 |
| JP2002054242A (en) | 2002-02-20 |
| ES2275636T3 (en) | 2007-06-16 |
| FR2809757B1 (en) | 2002-08-30 |
| JP4706129B2 (en) | 2011-06-22 |
| DE60124816D1 (en) | 2007-01-11 |
| DE60124816T2 (en) | 2007-10-11 |
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