WO1999042677A1 - Composant mixte prefabrique et procede de fabrication de poutres, notamment pour la construction de ponts - Google Patents

Composant mixte prefabrique et procede de fabrication de poutres, notamment pour la construction de ponts Download PDF

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Publication number
WO1999042677A1
WO1999042677A1 PCT/EP1999/000490 EP9900490W WO9942677A1 WO 1999042677 A1 WO1999042677 A1 WO 1999042677A1 EP 9900490 W EP9900490 W EP 9900490W WO 9942677 A1 WO9942677 A1 WO 9942677A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
flange
girder
steel
composite
Prior art date
Application number
PCT/EP1999/000490
Other languages
German (de)
English (en)
Inventor
Victor Schmitt
Günter SEIDL
Original Assignee
Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft mbH
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 Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft mbH filed Critical Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft mbH
Priority to EP99907423A priority Critical patent/EP1056911A1/fr
Priority to AU27193/99A priority patent/AU2719399A/en
Priority to PL342232A priority patent/PL197925B1/pl
Publication of WO1999042677A1 publication Critical patent/WO1999042677A1/fr

Links

Classifications

    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element

Definitions

  • the invention relates to a prefabricated composite girder as a steel girder with a flange concreted on in the factory or in situ.
  • the invention also relates to a method for producing composite beams, in particular for bridge structures.
  • Prestressed concrete beams have also been used.
  • the area of application of this method is essentially limited to bridge building in special areas. You may are not used for large bridges, oblique buildings with a crossing angle of less than 60 gon.
  • the invention has for its object to date to purchase counteracting unstable behavior in the steel girder or the additional installation of stiffening braces, especially in bridge structures in the horizontal and vertical directions, and with the lowest possible weight of the individual elements.
  • a composite beam according to DE 2 300 733 C2 serves only as stiffening elements.
  • the concrete flange of the prefabricated composite girder is designed as a full-surface formwork element and (with an adjoining prefabricated composite girder) forms the formwork for the in-situ concrete slab.
  • the composite prefabricated girders according to the invention act exclusively in the longitudinal direction of the building and are designed for lengths of 25 to 50 m span.
  • the composite prefabricated part carriers can also preferably be Compartment arrangement to be connected via a pre-concreted central cross member to a continuous system before the start of loading.
  • a frame system is a rigid connection between the superstructure and the substructures in the form of a frame corner. This clamping is realized via a connection reinforcement in the prefabricated part in the abutment wall.
  • the prefabricated parts are placed on settling bearings and the abutment wall is reinforced and concreted up to the upper edge of the prefabricated part. This results in a rigid connection in the abutment wall.
  • Such a frame system offers the following advantages:
  • a continuous system is understood to mean a rigid connection of the two adjacent prefabricated composite parts by creating an in-situ concrete crossbeam.
  • the continuous effect is achieved by connecting reinforcement in the prefabricated part, which is integrated into the in-situ concrete beam.
  • high-strength threaded rods can be arranged, which participate in the absorption of the support torque.
  • a lifting coupling device is advantageously provided for the cross connection. It serves to compensate for the flange level in the transverse direction and consists of a base plate concreted in the flange of the respective VFT and a cantilever plate welded into it. Bridging both, a cantilever arm welded to a cantilever plate is provided, which can each be screwed to the opposite cantilever plate. It is important that the concrete flanges can be made from high-strength concretes, especially grades greater than B 55. Until now, high-strength concretes were considered to be too brittle in their fracture behavior because the connecting means became stiff. In contrast, no headed dowels are used in this construction.
  • Welded docked roller beams (double-T beams) can be welded in the center of the load-bearing steel beam and thereby create the connection between steel and high-strength concrete. This makes the construction in the composite joint softer.
  • the load-bearing capacity of the composite cross-section is increased. This avoids the brittle failure behavior of the stud bolts.
  • the ductile load-bearing capacity of the composite cross-section is increased and a robust structure is created.
  • tab joints can be provided between the individual girders for the production of multi-field systems; the central cross girder and the end cross girder can already be concreted from in-situ concrete before concreting the roadway slab.
  • the concrete flange concreted onto the steel belt can form the beam stabilizer.
  • Angle plates can be welded onto the end face plate to initiate pressure in oblique-angled systems.
  • the upper steel flange of the steel beam is preferably dimensioned significantly smaller than the lower one.
  • the composite precast girders can be used as formwork for the in-situ concrete pavement.
  • the steel girders are advantageously pretensioned during the concreting in the precast plant by pressing in the center of the girder with a negative field torque in order to enter compressive stresses in the lower flange of the steel girder and tensile stresses in the upper concrete flange (see also AT-PS 336 847).
  • the measure of the invention the development of the VFT beam, makes the steel's low weight and higher material strength stand out. It can be used with both single-field and continuous systems. For girders over 40 m in length, box girder cross-sections can be used because they are significantly more torsion-resistant than I-shaped cross-sections.
  • the procedure can be as follows: the VFT beam is transported to the construction site on a low loader. The carrier is lifted onto the mounting structure and coupled in the transverse direction with the remaining VFT carriers. In multi-field systems, the precast upper chords in the center crossmember are pushed through overlapping reinforcement. The support and end cross members are then concreted and a continuous effect is created. There is also torsional clamping, which secures the VFT beams against tipping during concreting of the carriageway slab.
  • the VFT beams lying next to each other have only one longitudinal joint, compared to many joints in the transverse direction with conventional precast formwork elements.
  • the training of single field systems as Frame is particularly advantageous in systems prone to vibration, since the natural frequency is increased by the frame effect and the amplitudes are reduced.
  • a structure with VFT beams has a longer service life than composite structures with precast panel formwork.
  • the increase in the load capacity of the structure that is desired in the event of a change in use can be achieved relatively simply by welding on reinforcement straps. This advantage also applies to repair measures.
  • the stiffness of a VFT beam can be increased by adding high-strength concrete to the lower chord side, especially in the hollow steel box, and preventing it from cracking (transition to state II) by prestressing.
  • Fig. 1 shows a longitudinal section through a building with a superstructure on abutments
  • Fig. 2 is a top view of Fig. 1;
  • Fig. 3 shows a first variant of a composite part carrier in section
  • Fig. 4 shows another variant of the composite precast member with box girder in cross section
  • Fig. 5 shows a cross section of several composite prefabricated parts according to the invention in bridge cross section
  • Fig. 6 shows a variant with box girder in section, the central cross member is shown with two supports;
  • Fig. 7 shows a welded assembly joint on the support cross member in plan
  • Fig. 8 is a sectional view of Fig. 7 along line A-A, showing a cross member with a tab joint;
  • Fig. 9 shows a variant of Fig. 7, this time not welded but screwed
  • Fig. 10 is a section along the line A-A of Fig. 9;
  • Fig. 11 shows several prefabricated composite girders that tie into an end cross member, using the example of a skewed structure
  • Fig. 12 is a detail section through Fig. 11;
  • Figure 13 is a detail in plan view of Figure 11;
  • the elements 2 and 3 are conventional.
  • the superstructure 4 is constructed according to the invention from a plurality of prefabricated composite component carriers, which are described in more detail below. As also explained below, such a superstructure is composed of steel girders 5, concrete flanges 6 and in-situ concrete slab 7, six prefabricated composite girders per field; 6 and 12 are present in the construction shown in Figures 1 and 2.
  • FIG. 3 shows a standard beam 5, 6.
  • Steel beam 5 and concrete flange 6 are already connected by means of composite 13.
  • a roller girder with a welded tab on the lower flange can be used.
  • the concrete flange 6 On the upper steel flange 9 of the beam is the concrete flange 6, which was already concreted in the precast plant, but in any case before installation. Shorter connecting means protrude into the concrete flange, e.g. Head pin plug 13.
  • the concrete flange has a connecting reinforcement 10, which will later become part of the in-situ concrete slab.
  • higher connecting means 10 protrude over the concrete flange into the later in-situ concrete.
  • the steel girder is provided in a manner known per se with a steel girder web 8 and an upper steel girder flange 7 next to the lower steel girder flange 9.
  • the head bolt anchors provided for example (other composite means can of course also be used, which are welded to the upper steel flange 7, for example, in order to make the connection) can be applied in a staggered manner in height. While the one part in the concrete belt 5, 6, provides the other part with the heads 13 connects to the in-situ concrete supplement (in-situ concrete slab).
  • VFT composite prefabricated parts
  • Figure 6 which shows a variant with box girder in section, shows a central cross member with two supports. The whole thing rests on pillars 3.
  • FIG. 7 explains an assembly joint as a plate joint 16 on the cross-member in the plan. Vent holes 17 improve the design.
  • Figure 8 (section to Figure 7) shows an assembly joint using the example of a skewed structure in the area of the support beam.
  • the upper flange of the steel girder protrudes halfway into the in-situ concrete support cross girder.
  • the two steel girders are connected to each other via welded steel brackets.
  • a longitudinal reinforcement is designated by 11.
  • the position of the tab joint 17 is clearly visible.
  • End plates 14 and angle plates 15 round off the construction, which again rests on a pillar 13.
  • a continuous effect is achieved by concreting the in-situ concrete crossbeam.
  • Figure 9 which reveals a variant of Figure 7, is alternatively screwed and not welded, as can be seen by the indicated screws 18 at the tab joint 16. Vent holes 17 ensure proper compaction of the concrete. 10
  • Figure 10 shows a variant of the support cross member joint.
  • Several composite prefabricated girders, which are integrated into an end cross member, are shown.
  • the construction is screwed (screws 18).
  • the continuous longitudinal reinforcement 11 can be seen, as can the end plates 14 and angle plates 15 already mentioned in another figure.
  • FIG. 11 shows several prefabricated composite girders that bind into an end cross member, using the example of an oblique building.
  • the compressive forces must be entered at right angles to the steel girder axis.
  • steel angles 15 are attached to the end plate 14 according to FIG. 11, which ensure a vertical introduction of the compressive force (for details see FIGS. 12 and 13). This possibility of introduction exists both on the end cross member and on the support cross member.
  • Figure 12 is a detail cross section through Figure 11, Figure 13 is a detail of Figure 11, this time in plan.
  • the construction sits on the abutment 2; for example, head anchors extend from the end plate 14 into the concrete.
  • the plan view shows the steel beam 5 with the web 8, flanges 7, 9 and the concrete flange 6 already manufactured in the factory, for example, by means of composite 13.
  • the concrete flange ( Figures 1 to 14) is usually cast in a thickness of 10 to 12 cm.
  • FIG. 13 also shows the welding, for example, between the end plate 14 and the steel girder web 8.
  • Angle plates 15 are assigned to end plate 14.
  • Figure 14 shows the lifting structure for coupling the precast beams in the transverse direction of the bridge.
  • the finished parts lie side by side.
  • the coupling is established as follows:
  • Round steel anchors 19 are already concreted in the factory; Steel sheets are placed on a mortar bed 25 and screwed. Another steel sheet is welded with a connecting profile 21 11 welded at right angles to the existing horizontal steel sheet, a flat iron 24 and a lifting pin 23 pull the two concrete flanges to the same height. The flanges are then articulated to one another by means of a connecting bolt 22. The flat iron 24 was laid on leveling mortar 25.
  • FIG. 15 describes a frame system made of VFT beams 4, which integrate into the abutment 2 via a frame corner 29.
  • VFT beam 4 binds into the abutment wall 2 with the connecting reinforcement and a steel flange bent and anchored by 90 °. 28 is a settling bearing.
  • FIG. 17 shows the creation of the continuous system using in-situ concrete cross beams.
  • the connecting bars of the prefabricated concrete element bind in.
  • the tensile force of the flange can be transmitted via high-strength threaded rods 26 which are screwed to brackets 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

L'invention concerne une poutre mixte utilisable comme poutre en acier avec bride fabriquée en usine ou bétonnée sur place, caractérisée en ce que pour la construction d'un pont en tant que pont à tablier supérieur, la bride à béton (6) du composant préfabriqué est réalisée sous la forme d'élément de coffrage sur toute la surface et forme (avec un composant préfabriqué mixte situé à côté), le coffrage pour la dalle en béton coulée sur place.
PCT/EP1999/000490 1998-02-18 1999-01-26 Composant mixte prefabrique et procede de fabrication de poutres, notamment pour la construction de ponts WO1999042677A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99907423A EP1056911A1 (fr) 1998-02-18 1999-01-26 Composant mixte prefabrique et procede de fabrication de poutres, notamment pour la construction de ponts
AU27193/99A AU2719399A (en) 1998-02-18 1999-01-26 Composite prefabricated girder and a method for manufacturing girders, especially for the construction of bridges
PL342232A PL197925B1 (pl) 1998-02-18 1999-01-26 Dźwigar prefabrykowany do budowy mostów i sposób jego wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806824.7 1998-02-18
DE19806824 1998-02-18

Publications (1)

Publication Number Publication Date
WO1999042677A1 true WO1999042677A1 (fr) 1999-08-26

Family

ID=7858203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/000490 WO1999042677A1 (fr) 1998-02-18 1999-01-26 Composant mixte prefabrique et procede de fabrication de poutres, notamment pour la construction de ponts

Country Status (5)

Country Link
EP (1) EP1056911A1 (fr)
AU (1) AU2719399A (fr)
DE (1) DE19903310A1 (fr)
PL (1) PL197925B1 (fr)
WO (1) WO1999042677A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205907A1 (de) 2016-04-08 2017-10-12 Db Bahnbau Gruppe Gmbh Verfahren und Vorrichtung zur Herstellung einer Brückenkonstruktion unter Verwendung von Fertigteilen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011176A1 (de) * 2008-02-26 2009-09-03 Ssf-Ingenieure Gmbh Stahl-Beton-Verbundträger und Verfahren zu seiner Herstellung
DE102008022180B3 (de) * 2008-05-05 2009-11-26 Db Netz Ag Anordnung zur Ausbildung einer Rahmenecke einer Walzträger-in-Betonbauweise (WIB)
DE102010045453A1 (de) * 2010-09-15 2012-03-15 Ssf Ingenieure Ag Brückenkonstruktion
CN108412202A (zh) * 2018-05-11 2018-08-17 上海建工四建集团有限公司 设置于钢梁下翼缘上的楼层板支模系统及其施工方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300733A1 (de) * 1972-01-10 1973-07-19 Raphael Lipski Verfahren zur herstellung eines traegers mit einer starren, vorgespannten bewehrung
FR2362255A1 (fr) * 1975-08-13 1978-03-17 Preflex Verbundtrager Gmbh Poutre combinee acier-beton
DE2645064A1 (de) 1976-10-06 1978-04-13 Hans Dieter Dreyer Traeger fuer grossplatten
GB2053308A (en) * 1979-07-06 1981-02-04 Conder International Ltd Beam; floor or roof construction
BE889795A (fr) * 1981-07-29 1981-11-16 Smal Freddy Procede de fabrication d'une poutre preflechie, dont la poutre de base est une poutre mixte beton-acier, et poutre preflechie ainsi realisee.
US5279093A (en) 1991-12-11 1994-01-18 Mulach Parking Structures Corp. Composite girder with apparatus and method for forming the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300733A1 (de) * 1972-01-10 1973-07-19 Raphael Lipski Verfahren zur herstellung eines traegers mit einer starren, vorgespannten bewehrung
DE2300733C2 (de) 1972-01-10 1983-05-26 Société Anonyme Preflex, 1060 Bruxelles Verfahren zum Herstellen eines Verbundträgers
FR2362255A1 (fr) * 1975-08-13 1978-03-17 Preflex Verbundtrager Gmbh Poutre combinee acier-beton
DE2645064A1 (de) 1976-10-06 1978-04-13 Hans Dieter Dreyer Traeger fuer grossplatten
GB2053308A (en) * 1979-07-06 1981-02-04 Conder International Ltd Beam; floor or roof construction
BE889795A (fr) * 1981-07-29 1981-11-16 Smal Freddy Procede de fabrication d'une poutre preflechie, dont la poutre de base est une poutre mixte beton-acier, et poutre preflechie ainsi realisee.
US5279093A (en) 1991-12-11 1994-01-18 Mulach Parking Structures Corp. Composite girder with apparatus and method for forming the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016205907A1 (de) 2016-04-08 2017-10-12 Db Bahnbau Gruppe Gmbh Verfahren und Vorrichtung zur Herstellung einer Brückenkonstruktion unter Verwendung von Fertigteilen

Also Published As

Publication number Publication date
DE19903310A1 (de) 1999-08-19
EP1056911A1 (fr) 2000-12-06
PL197925B1 (pl) 2008-05-30
AU2719399A (en) 1999-09-06
PL342232A1 (en) 2001-06-04

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