EP0196446B1 - Elément de construction pour liaison d'éléments en béton armé - Google Patents

Elément de construction pour liaison d'éléments en béton armé Download PDF

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Publication number
EP0196446B1
EP0196446B1 EP86102334A EP86102334A EP0196446B1 EP 0196446 B1 EP0196446 B1 EP 0196446B1 EP 86102334 A EP86102334 A EP 86102334A EP 86102334 A EP86102334 A EP 86102334A EP 0196446 B1 EP0196446 B1 EP 0196446B1
Authority
EP
European Patent Office
Prior art keywords
reinforced concrete
tie rod
spring member
arrangement according
top plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86102334A
Other languages
German (de)
English (en)
Other versions
EP0196446A1 (fr
Inventor
Walter K. Dr.-Ing. Stiller
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.)
Philipp Holzmann AG
Original Assignee
Philipp Holzmann AG
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 Philipp Holzmann AG filed Critical Philipp Holzmann AG
Publication of EP0196446A1 publication Critical patent/EP0196446A1/fr
Application granted granted Critical
Publication of EP0196446B1 publication Critical patent/EP0196446B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head

Definitions

  • the invention relates to a connection arrangement consisting of a reinforced concrete structure and an add-on part made of reinforced concrete, which are directly connected to one another by means of structural elements and while maintaining a prestressing force.
  • construction elements are used with a pull rod that penetrates at least one concrete part and can be fixed on the other concrete part, which is provided at one end with a thread for a nut, by means of which a prestressing force is applied to the interconnected reinforced concrete parts via the pull rod that they are pressed against each other with a defined force and, as a result of the friction between the components, forces can be transmitted between the components via the contact surface.
  • the known construction elements have the disadvantage that tension rods that are not pretensioned or are pretensioned too little lead to incompatible deformation paths.
  • the construction elements can at least partially lose their prestress, in particular in the case of temperature stresses, by means of which the creep increases to four times the normal value, as a result of which the prestress is greatly reduced.
  • high-strength steels there is also the problem of corrosion, especially since construction elements made of stainless steel are very expensive.
  • slip occurs in the area of the threads and washers, which reduces the pretensioning force and reduces the slip load.
  • the invention has for its object to provide a connection arrangement of the type described above, which avoids the disadvantages listed above and ensures the generation and maintenance of the pretensioning force required for the non-positive attachment of the attachment even under unfavorable conditions.
  • connection arrangement created to solve this problem with the invention consists of a reinforced concrete construction and an add-on part made of reinforced concrete, which are non-positively connected by means of construction elements and while maintaining a prestressing force, each construction element consisting of a tie rod penetrating the reinforced concrete construction and at least partially penetrating the add-on part, a nut which is used to apply the prestressing force and which is supported on one of the reinforced concrete parts at one end of the pull rod and from a head plate fastened at the other end of the pull rod, on which a spring element is supported, which in turn is supported on an annular flange on the other concrete part, in the area of which the tie rod is surrounded by a cladding tube.
  • the deformation energy is not only stored in the shaft of the pull rod, but also in the spring element, the characteristic curve of this spring element being able to be designed according to the respective requirement.
  • EP-A-086 751 shows an elastically yielding connection of separate, i.e. components spaced from each other, a shock absorber-like anchor construction being used for this articulated connection, in which a pretension is also generated, but which is not used for the positive connection of the two components, but for generating a damping force within the anchor.
  • the cladding tube is provided at the other end with a support flange for contact with the reinforced concrete structure.
  • the cladding tube with the support flange and the ring flange, the top plate of the pull rod and the spring element arranged between the top plate and the ring flange can be arranged within the attachment part. This results in a protected housing in the concrete of this component, so that good corrosion and fire protection is given. Nevertheless, the construction element can be prestressed in the required manner by the externally accessible nut.
  • the invention proposes to close off the space for the spring element formed between the top plate of the pull rod and the annular flange of the cladding tube by a deformable cover.
  • the room can be filled with a corrosion-protecting material, such as grease.
  • At least one disc spring is preferably used as the spring element, so that the spring characteristic can be specifically tailored to the respective application.
  • the construction element shown schematically in Fig. 1 serves for the subsequent attachment of an attachment part 2 made of reinforced concrete to an existing reinforced concrete construction 1.
  • the construction element comprises a tie rod 3 which penetrates the reinforced concrete construction 1 and protrudes into the attachment part 2, i.e. this attachment 2 partially penetrates.
  • the pull rod 3 is provided with a head plate 4.
  • the pull rod 3 carries a thread 5 onto which a nut 6 can be screwed. This nut 6 lies with the interposition of an anchoring element 7 on one side of the existing reinforced concrete structure 1.
  • the cladding tube 8 is provided with a support flange 9 which is supported on the reinforced concrete structure 1 on the side opposite the anchoring element 7. At the other end of the cladding tube 8, this is provided with an annular flange 10 which is at a distance from the top plate 4 of the pull rod 3 and thus forms a space 11 within the attachment 2, which is closed by a deformable cover 12. In this space 11, a spring element 13 is arranged, which is shown in FIG. 1 as a helical spring and is supported at one end on the head plate 4 and at the other end on the ring flange 10.
  • the structural element was cast into the attachment 2 during the manufacture of the attachment 2 with the top plate 4 of the tie rod 3, the cladding tube 8 and the spring element 13 protected by the cover 12 against the ingress of concrete.
  • the space 11 can be filled with a corrosion-protecting material, preferably grease, to protect the spring element 13 against corrosion.
  • a corrosion-protecting material preferably grease
  • the spring element 13 which can preferably consist of disc springs to form the spring characteristic required in each case, is protected in the add-on part 2, good corrosion and fire protection results.
  • the attachment 2 subsequently attached to the reinforced concrete structure 1 can therefore not only be subjected to static forces in the three coordinate directions, but also to bending moments or dynamic loads.

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

Claims (6)

1. Agencement de liaison qui se compose d'une construction en béton armé (1) et d'un élément de construction rapporté (2) en béton armé, qui sont reliés directement entre-eux, par adhérence, tout en maintenant une précontrainte, au moyen de pièces de liaison, chaque pièce de liaison étant constituée par un tirant (3) qui traverse la construction en béton armé (1) et qui traverse au moins partiellement l'élément-de construction rapporté (2) par un écrou (6) à l'une des extrémités du tirant (3), destiné à fournir la précontrainte et s'appuyant sur l'un des éléments en béton armé (1, 2), ainsi que par une semelle (4) fixée à l'autre extrémité du tirant (3) et sur laquelle prend appui un élément élastique (13) qui, pour sa part, prend appui sur un flasque annulaire (10) sur l'autre élément en béton (2) au niveau duquel le tirant (3) est entouré par un fourreau tubulaire (8).
2. Agencement de liaison selon la revendication 1, caractérisé en ce que le fourreau tubulaire (8) est pourvu à l'autre extrémité, d'un flasque d'appui (9) destiné à s'appliquer sur la construction en béton armé (1).
3. Agencement de liaison selon les revendications 1 et 2, caractérisé en ce que le fourreau tubulaire (8) avec le flasque d'appui (9) et le flasque annulaire (10), la semelle (4) du tirant (3) ainsi que l'élément élastique (13) agencé entre la semelle (4) et le flasque annulaire (10), sont logés à l'intérieur de l'élément de construction rapporté (2).
4. Agencement de liaison selon au moins l'une des revendications 1 à 3, caractérisé en ce que l'espace (11) pour l'élément élastique (13), formé entre la semelle (4) du tirant (3) et le flasque annulaire (10) du fourreau tubulaire (8), est obturé à l'aide d'un dispositif d'obturation déformable (12).
5. Agencement de liaison selon la revendication 4, caractérisé en ce que l'espace (11) recevant l'élément élastique (13), est rempli d'un matériau de protection contre la corrosion.
6. Agencement de liaison selon au moins l'une des revendications 1 à 5, caractérisé en ce que l'élément élastique (13) est constitué par au moins une rondelleressort.
EP86102334A 1985-03-30 1986-02-22 Elément de construction pour liaison d'éléments en béton armé Expired - Lifetime EP0196446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8509641U 1985-03-30
DE8509641U DE8509641U1 (de) 1985-03-30 1985-03-30 Konstruktionselement zur Verbindung von Stahlbetonteilen

Publications (2)

Publication Number Publication Date
EP0196446A1 EP0196446A1 (fr) 1986-10-08
EP0196446B1 true EP0196446B1 (fr) 1990-10-10

Family

ID=6779403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102334A Expired - Lifetime EP0196446B1 (fr) 1985-03-30 1986-02-22 Elément de construction pour liaison d'éléments en béton armé

Country Status (2)

Country Link
EP (1) EP0196446B1 (fr)
DE (2) DE8509641U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431660A (en) * 1993-11-30 1995-07-11 Burke; Dennis W. Spring loaded screw and driver/extractor therefor
DE202004019291U1 (de) * 2004-12-14 2005-02-24 Thread Guard Technology Ltd. Vorrichtung zur Abstützung von Rohren
CN112227537B (zh) * 2020-09-25 2022-07-26 江苏晨马建筑科技有限公司 一种加强的预制再生混凝土梁柱节点
CN112681770A (zh) * 2020-12-15 2021-04-20 中国十九冶集团有限公司 混凝土预埋钢板结构及安装方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086751A2 (fr) * 1982-02-12 1983-08-24 Ulisse C. Aschwanden Ancre pouvant être soumise à la traction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1542467A (en) * 1924-03-10 1925-06-16 Mathew M Moratta Self-tightening bolt
US3183762A (en) * 1957-12-26 1965-05-18 Illinois Tool Works Fastening device
US3803793A (en) * 1970-04-14 1974-04-16 Standard Pressed Steel Co Method and apparatus for preloading a joint
GB1369329A (en) * 1973-07-30 1974-10-02 Electricity Council Bolts
US3815635A (en) * 1973-07-30 1974-06-11 Automatic Switch Co Temperature compensator device and fluidic assembly incorporating it

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086751A2 (fr) * 1982-02-12 1983-08-24 Ulisse C. Aschwanden Ancre pouvant être soumise à la traction

Also Published As

Publication number Publication date
DE3674819D1 (de) 1990-11-15
DE8509641U1 (de) 1985-05-23
EP0196446A1 (fr) 1986-10-08

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