EP4001532B1 - Verbindungssystem für betongefüllte stahlrohrstrukturen - Google Patents

Verbindungssystem für betongefüllte stahlrohrstrukturen Download PDF

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Publication number
EP4001532B1
EP4001532B1 EP20383009.6A EP20383009A EP4001532B1 EP 4001532 B1 EP4001532 B1 EP 4001532B1 EP 20383009 A EP20383009 A EP 20383009A EP 4001532 B1 EP4001532 B1 EP 4001532B1
Authority
EP
European Patent Office
Prior art keywords
connector
concrete
steel
joint system
steel segments
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.)
Active
Application number
EP20383009.6A
Other languages
English (en)
French (fr)
Other versions
EP4001532C0 (de
EP4001532A1 (de
Inventor
Jorge Gil Fernandez
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.)
Dingemas Ingenieria Slpu
Original Assignee
Dingemas Ingenieria Slpu
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 Dingemas Ingenieria Slpu filed Critical Dingemas Ingenieria Slpu
Priority to EP20383009.6A priority Critical patent/EP4001532B1/de
Priority to ES20383009T priority patent/ES2956371T3/es
Publication of EP4001532A1 publication Critical patent/EP4001532A1/de
Application granted granted Critical
Publication of EP4001532C0 publication Critical patent/EP4001532C0/de
Publication of EP4001532B1 publication Critical patent/EP4001532B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2451—Connections between closed section profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/246—Post to post connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2466—Details of the elongated load-supporting parts
    • E04B2001/2478—Profile filled with concrete

Definitions

  • the joint system connects two co-axial steel tubes improving the construction process of CFST structures, facilitating the connection so both tubes are readily attached to each other.
  • This joint allows the tubes to support themselves whilst the structure is being built and the concrete is still to be poured.
  • the system includes a mechanical device that enables the rotation of the connector and keeps it in place until the concrete hardens. Once the concrete is poured and hardened, the joint is permanently locked by the concrete.
  • the field of application of the invention is construction, more specifically the construction of composite steel and concrete structures, preferably but not limited to civil engineering, buildings and windmills.
  • CFST structures are built in two phases. First, the steel structure is built using steel segments, and then a sufficiently liquid concrete is poured inside.
  • Patent application US2019/0376273 A1 which discloses the features of the preamble of claim 1, relates to a bolted joint system for structural members for buildings, in particular to an assembled self-recovery circular concrete-filled steel-tube composite joint.
  • the present invention improves the construction process of CFST structures enabling an easy and fast installation of the steel part of the structure.
  • the mechanical device that rotates the connector can be actuated manually or remote control activated.
  • the joint for concrete-filled steel tubular structures is of the type that joins two axially-aligned tubular steel segments.
  • This joint also comprises a tubular connector between both steel segments, in a tongue and groove connection with each steel segment.
  • the female part has a shell, the inside of the shell carrying at least two teeth that define a circular hole for the insertion of the circular wall.
  • the projections fit between the teeth, so they can pass through them. They also fit behind the teeth so they can be placed in a twist lock.
  • the connector is locked against rotation by the concrete filling once the concrete is hardened.
  • the circular wall is not fully round in the inside. It might include elements (rivets, nails, profiles, etc.) to increase the rotational stiffness between the connector and the concrete.
  • the connector has a male part on each side, so the steel segments both have female parts.
  • the connector and the steel segments might have handles or platen marks for attachment of a mechanical tightening device.
  • the connector and the steel segments might have valves to check that the joint is fully filled with concrete.
  • FIG 1 a first embodiment of the joint is shown. It comprises two tubular steel segments (1) and one tubular connector (2).
  • the connector (2) is placed between both steel segments (1) so their respective holes are axially aligned.
  • the three elements are connected through a tongue and groove connection and locked against rotation, once correctly placed, by the concrete filling (10).
  • both steel segments (1) comprise a female part whilst the connector (2) has a male part on each side.
  • a transversal section of an example of male part is shown in figure 4 . It comprises a circular wall (3) where at least two projections (4) are placed. The projections (4) are evenly distributed around the outside of the circular wall (3). It is possible to include elements (9) that increase the rotational stiffness between the connector (2) and the concrete filling (10).
  • FIG. 5 An example of female part is shown in figure 5 . It comprises a shell (5), whose external shape is irrelevant. For instance, it can be round or squared.
  • the inside of the shell (5) carries several teeth (6) that define a circular hole (7).
  • This circular hole (7) is slightly bigger than the circular wall (3) of the male part so the circular wall (3) fits inside the circular hole (7).
  • the number of teeth (6) is normally the same as the number of projections (4) of the male part.
  • the projections (4) fit between and behind the teeth (6), so they can be placed in a twist lock.
  • the joint has a connector (2) that is attached to two steel segments (1), the placing of teeth (6) and projections (4) has to allow for the insertion of two male parts in the correspondent female parts at the same time.
  • the connector (2) is rotated in order to align the teeth (6) and projections (4).
  • the connector (2) and the steel segments (1) may have handles or platen marks (8) for hoisting or other tasks, that also allow a mechanical tightening device (12) to rotate and temporarily lock the joint system while the steel structure is installed, as shown in figures 2 and 3 .
  • the platen marks (8) also allow to check for the correct rotational position between the connector (2) and the steel segments (1).
  • the connector (2) can no longer rotate so the joint is firmly secured.
  • the mechanical tightening device (12), and platen marks (8), if desired, can then be removed.
  • a seal may be placed in any contact surface between the connector (2) and the steel segment (1), e.g. one or more circular rubber-seals. This seal improves the sealing of the joint during the concrete pouring.
  • the connector (2) and the steel segments (1) might have valves (11) which allow air to escape to ensure that the joint system and the steel segments are fully filled with concrete (10).
  • the valves can also be used to pump concrete into the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (7)

  1. Verbindungssystem für betongefüllte Stahlrohrstrukturen, wobei das Verbindungssystem aufweist:
    - zwei Stahlrohrsegmente (1), und
    - einen Rohrverbinder (2), der zwischen den beiden Stahlsegmenten (1) platziert ist, so dass deren jeweiligen Löcher axial ausgerichtet sind; wobei die Stahlsegmente (1) und der Verbinder (2) in einer Nut-und-Feder-Verbindung verbunden sind,
    wobei der Verbinder (2) einen männlichen Teil an jedem Ende aufweist, so dass die Stahlsegmente (1) beide weibliche Teile aufweisen; dadurch gekennzeichnet, dass
    der männliche Teil von jedem Ende des Verbinders (2) eine Ringmauer (3) aufweist, an der zumindest zwei Vorsprünge platziert sind, wobei die Vorsprünge (4) gleichmäßig um das Äußere der Ringwand (3) verteilt sind; und dass
    der weibliche Teil der Stahlsegmente (1) eine Hülle (5) aufweist, wobei das Innere der Hülle (5) mindestens zwei Zähne (6) trägt, die ein kreisrundes Loch (7) zum Einsetzen der Ringwand (3) des Verbinders (2) definieren; und dass
    der Verbinder (2) und die Stahlsegmente (1) Griffe oder Walzzeichen (8) zum Anbringen einer mechanischen Spannvorrichtung (12) aufweisen, um den Verbinder (2) zu drehen und den Verbinder (2) in die richtige Position zu bringen;
    wobei die Vorsprünge (4) zwischen die Zähne (6) passen, so dass die Vorsprünge (4) im Gebrauch, nach dem Drehen des Verbinders (2), hinter die Zähne (6) passen, um die Zähne (6) und die Vorsprünge (4) auszurichten, so dass Beton (10) gegossen wird, um das Verbindungssystem zu füllen und gegen Drehung zu sichern.
  2. Verbindungssystem nach Anspruch 1, wobei die Stahlrohrsegmente (1) oder der Rohrverbinder (2) Elemente (9) aufweisen, welche die Drehsteifigkeit zwischen dem Verbinder (2) und dem Beton (10) erhöhen.
  3. Verbindungssystem nach Anspruch 1, wobei jede Nut-und-Feder-Verbindung eine Dichtung in einer Kontaktfläche zwischen dem Verbinder (2) und dem Stahlsegment (1) aufweist.
  4. Verbindungssystem nach Anspruch 1, wobei der Verbinder (2) und die Stahlsegmente (1) Ventile (11) aufweisen, um zu prüfen, dass die Verbindung vollständig mit Beton gefüllt ist.
  5. Verbindungssystem nach einem der Ansprüche 1-4, wobei die mechanische Spannvorrichtung (12) manuell betätigt wird.
  6. Verbindungssystem nach einem der Ansprüche 1-4, wobei die mechanische Spannvorrichtung (12) durch Fernsteuerung aktiviert wird.
  7. Verfahren zur Konstruktion von betongefüllten Stahlrohrstrukturen mittels eines Verbindungssystems nach einem der Ansprüche 1-6, wobei das Konstruktionsverfahren die folgenden Schritte umfasst:
    - Einsetzen eines Verbinders (2) in ein erstes Stahlsegment (1);
    - Einsetzen eines zweiten Stahlsegments (1) an dem Verbinder (2);
    - Drehen und vorübergehendes Verriegeln des Verbinders (2) mit einer mechanischen Spannvorrichtung (12);
    - Einbringen von Beton, wobei Beton (10) in die Stahlsegmente (1) gegossen wird, so dass die Stahlsegmente vollständig mit Beton (10) gefüllt sind;
    - Entfernen der mechanischen Spannvorrichtung (12) sobald der Beton (10) ausgehärtet ist.
EP20383009.6A 2020-11-19 2020-11-19 Verbindungssystem für betongefüllte stahlrohrstrukturen Active EP4001532B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20383009.6A EP4001532B1 (de) 2020-11-19 2020-11-19 Verbindungssystem für betongefüllte stahlrohrstrukturen
ES20383009T ES2956371T3 (es) 2020-11-19 2020-11-19 Sistema de unión para estructuras tubulares de acero rellenas de hormigón

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20383009.6A EP4001532B1 (de) 2020-11-19 2020-11-19 Verbindungssystem für betongefüllte stahlrohrstrukturen

Publications (3)

Publication Number Publication Date
EP4001532A1 EP4001532A1 (de) 2022-05-25
EP4001532C0 EP4001532C0 (de) 2023-08-23
EP4001532B1 true EP4001532B1 (de) 2023-08-23

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ID=73642835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20383009.6A Active EP4001532B1 (de) 2020-11-19 2020-11-19 Verbindungssystem für betongefüllte stahlrohrstrukturen

Country Status (2)

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EP (1) EP4001532B1 (de)
ES (1) ES2956371T3 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5506088B2 (ja) * 2010-04-13 2014-05-28 千代田工営株式会社 機械式継手
CN107916726B (zh) * 2017-12-21 2018-12-04 青岛理工大学 装配式自恢复圆形钢管混凝土组合节点

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Publication number Publication date
EP4001532C0 (de) 2023-08-23
ES2956371T3 (es) 2023-12-20
EP4001532A1 (de) 2022-05-25

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