EP1013840A1 - Connector for mixed timber-concrete constructions - Google Patents
Connector for mixed timber-concrete constructions Download PDFInfo
- Publication number
- EP1013840A1 EP1013840A1 EP98124601A EP98124601A EP1013840A1 EP 1013840 A1 EP1013840 A1 EP 1013840A1 EP 98124601 A EP98124601 A EP 98124601A EP 98124601 A EP98124601 A EP 98124601A EP 1013840 A1 EP1013840 A1 EP 1013840A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connector
- connectors
- concrete
- peg
- type
- 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
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B2005/232—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with special provisions for connecting wooden stiffening ribs or other wooden beam-like formations to the concrete slab
- E04B2005/237—Separate connecting elements
Definitions
- the present invention relates to a connector for mixed constructions in timber and concrete, particularly floor and roof slabs and the like.
- the object of the invention is to provide a timber-concrete connector that ensures perfect static cooperation between said materials.
- Another object of the invention is that of providing such a connector that is simple in concept and therefore economical, and is easily constrained to a laminate or solid wood beam either in the workshop or on site.
- the timber-concrete connector according to the invention is substantially cylindrical in shape and has a base or peg that is housed in a cut made for this purpose in the wood, and a rod-shaped body protruding therefrom and ending at the top in a widened head.
- an axial hole passes through the entire connector for the passage of a screw or special nail able to hold said connector in position in the wood, but without fulfilling an essentially static function.
- this nail is made in a single body with the connector.
- the connector thus remains firmly stuck to the wooden beam, and its structure prevents axial sliding of the concrete with respect to the wood, whilst the widened head of the connector prevents any detachment perpendicularly to the surface of the wooden beam, with a stabilizer effect.
- Figures 1 and 2 show part of a mixed timber-concrete construction, such as floor or roof slab, for example.
- the structure is made of laminate wood beams 1, only one of which is shown in the figures, on which the so-called intermediate means 2 is laid, that is supporting panels made of tiles, timber or other materials, for subsequent casting of concrete 5.
- an electric welded wire mesh 4 that serves to reinforce the structure is disposed on the intermediate means 2 to a certain height therefrom.
- connectors 10 are disposed therebetween, the number, positioning and size of said connectors 10 being calculated on the basis of the structure to be created.
- Each connector 10 has a base or peg 11 that is disposed in a corresponding cut 20 made in the wooden beam 1, a substantially cylindrical body 12, extending upwards, and a widened head 13.
- the nail 15 can be made in a single body with the connector 10, protruding from the base or peg 11 like a plug.
- the base or peg 11 of the connector 10 is shaped like a continuous skirt downwardly tapering to a point, peg known by the name of Appel in other types of connectors. It is obvious, however, that the peg 11 can be of other types, for example with a profile shaped like a T (Christoph & Unmack system), a double cone (Kubler system), in the form of a plate with a plurality of pointed teeth that protrude from the bottom thereof (Geka system), or of other shapes still, the characteristics of the connector according to the invention remaining the same.
- the connectors 10 can be preinstalled on the beams 1 in the workshop or they can also be applied on site, an operation that does not require particular specialized labour.
- Assembly of the connector 10 according to the invention in fact requires a machined part on the beam for housing of the peg 11, after which the screw 15 or special nail is screwed in.
- the connector according to the invention is advantageously made of metal with a special anticorrosive treatment.
Abstract
Description
- The present invention relates to a connector for mixed constructions in timber and concrete, particularly floor and roof slabs and the like.
- In the building field mixed constructions of small dimensions in timber and concrete are currently widely used.
- In these structures there is the problem of making the timber and concrete cooperate perfectly with each other.
- The object of the invention is to provide a timber-concrete connector that ensures perfect static cooperation between said materials.
- Another object of the invention is that of providing such a connector that is simple in concept and therefore economical, and is easily constrained to a laminate or solid wood beam either in the workshop or on site.
- These objects are achieved by the connector according to the invention which has the characteristics listed in attached
independent claim 1. - Advantageous embodiments of the invention are described in the dependent claims.
- The timber-concrete connector according to the invention is substantially cylindrical in shape and has a base or peg that is housed in a cut made for this purpose in the wood, and a rod-shaped body protruding therefrom and ending at the top in a widened head.
- In one embodiment an axial hole passes through the entire connector for the passage of a screw or special nail able to hold said connector in position in the wood, but without fulfilling an essentially static function. According to a variant embodiment, this nail is made in a single body with the connector.
- The connector thus remains firmly stuck to the wooden beam, and its structure prevents axial sliding of the concrete with respect to the wood, whilst the widened head of the connector prevents any detachment perpendicularly to the surface of the wooden beam, with a stabilizer effect.
- Further characteristics of the invention will be made clearer by the detailed description that follows, referring to a purely exemplary and therefore non-limiting embodiment thereof illustrated in the appended drawings, in which:
- Figure 1 is a schematic perspective cutaway view of a timber-concrete structure using connectors according to the invention;
- Figure 2 is a section of the structure in Figure 1, taken at a connector, along the line II-II in Figure 1;
- Figure 3 is a midline section of the connector alone;
- Figure 4 is an axonometric view of the connector.
-
- Figures 1 and 2 show part of a mixed timber-concrete construction, such as floor or roof slab, for example.
- The structure is made of
laminate wood beams 1, only one of which is shown in the figures, on which the so-calledintermediate means 2 is laid, that is supporting panels made of tiles, timber or other materials, for subsequent casting ofconcrete 5. Before carrying out theconcrete casting 5, an electric weldedwire mesh 4 that serves to reinforce the structure is disposed on theintermediate means 2 to a certain height therefrom. - To make the
timber 1 and theconcrete 5 statically cooperating,connectors 10 are disposed therebetween, the number, positioning and size of saidconnectors 10 being calculated on the basis of the structure to be created. - Each
connector 10 has a base orpeg 11 that is disposed in acorresponding cut 20 made in thewooden beam 1, a substantiallycylindrical body 12, extending upwards, and a widenedhead 13. Thebody 12, which in the embodiment illustrated in the appended drawings has a slightly conical shape toward the top, has acentral hole 14 passing through it for insertion of a screw orspecial nail 15 which screws into thewooden beam 1 beneath, to hold theconnector 10 in position, before casting of theconcrete 5, but without fulfilling any static function. Alternatively, thenail 15 can be made in a single body with theconnector 10, protruding from the base or peg 11 like a plug. - In the example shown, the base or
peg 11 of theconnector 10 is shaped like a continuous skirt downwardly tapering to a point, peg known by the name of Appel in other types of connectors. It is obvious, however, that thepeg 11 can be of other types, for example with a profile shaped like a T (Christoph & Unmack system), a double cone (Kubler system), in the form of a plate with a plurality of pointed teeth that protrude from the bottom thereof (Geka system), or of other shapes still, the characteristics of the connector according to the invention remaining the same. - The
connectors 10 can be preinstalled on thebeams 1 in the workshop or they can also be applied on site, an operation that does not require particular specialized labour. - Assembly of the
connector 10 according to the invention in fact requires a machined part on the beam for housing of thepeg 11, after which thescrew 15 or special nail is screwed in. - In the case of the nail being made in a single body with the connector, it is sufficient to apply a suitable pressure thereon.
- The connector according to the invention is advantageously made of metal with a special anticorrosive treatment.
Claims (10)
- A connector for mixed timber-concrete constructions, such as floor or roofing slabs and the like, comprising a base or peg (II) housed in a seat (20) made in the wooden beam (1), and an elongated body (10) terminating in a widened head (13), embedded in concrete (5).
- A connector according to claim 1, characterized in that it has an axial through hole (14) for insertion of a screw (15) or special nail for fixing the connector (10) to the wooden beam (1).
- A connector according to claim 1, characterized in that, protruding from said base or peg (11), it has a screw or nail (15) made in a single body therewith.
- A connector according to any one of the preceding claims, characterized in that said elongated body (10) is substantially cylindrical.
- A connector according to claim 4, characterized in that said elongated body (12) is tapered at the opposite end to said base or peg (11).
- A connector according to any one of the preceding claims, characterized in that said base or peg (11) consists of a continuous skin tapered downwardly, of the Appel type (type "A" DIN 1052), or has a T-shaped profile, of the Christoph and Unmack type, or has a double-cone profile, of the Kubler type, or has a plurality of sharp teeth that stick into the wooden beam (1), of the Geka type.
- A method of connecting a mixed timber-concrete structure in a statically cooperating manner, using a plurality of connectors (10) according to any one of the preceding claims, consisting in making cuts (20) in the wooden beam (1), disposing the bases or pegs (11) of the connectors (10) in said cuts (20), fixing the connectors (10) to the beam (1) by means of screws or special nails (15) passing through a corresponding central hole (14) in the connectors (10) or made in a single body therewith, and casting the concrete (5) on the beam (1) prepared with the connectors (10).
- A method according to claim 7, wherein said connectors (10) are applied to the beams (1) in the workshop.
- A method according to claim 7, in which said connectors (10) are applied to the beams (1) on site.
- A method according to any one of claims 7 to 9, in which intermediate means (2) of tiles, wood or the like and possibly a reinforcing electric welded wire mesh (4) is disposed on said beams (1) before casting of the concrete (5).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69804475T DE69804475D1 (en) | 1998-12-23 | 1998-12-23 | Lanyard for wood-concrete structures |
AT98124601T ATE215159T1 (en) | 1998-12-23 | 1998-12-23 | CONNECTING MEANS FOR WOOD-CONCRETE CONSTRUCTIONS |
EP98124601A EP1013840B1 (en) | 1998-12-23 | 1998-12-23 | Connector for mixed timber-concrete constructions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98124601A EP1013840B1 (en) | 1998-12-23 | 1998-12-23 | Connector for mixed timber-concrete constructions |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1013840A1 true EP1013840A1 (en) | 2000-06-28 |
EP1013840B1 EP1013840B1 (en) | 2002-03-27 |
Family
ID=8233240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98124601A Expired - Lifetime EP1013840B1 (en) | 1998-12-23 | 1998-12-23 | Connector for mixed timber-concrete constructions |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1013840B1 (en) |
AT (1) | ATE215159T1 (en) |
DE (1) | DE69804475D1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10039264A1 (en) * | 2000-08-11 | 2002-02-28 | Ricky Selle | Bending carrier of compound wood/concrete materials, for construction, has a vertical and quadrilateral plate to transfer thrust forces with bent edges to form side wings and sleeves for the mounting screws |
ITCO20100020A1 (en) * | 2010-04-19 | 2010-07-19 | Giovanni Cenci | METALLIC CONNECTOR FOR THE CONNECTION OF WOOD ELEMENTS TO THE CEMENTITIOUS CONGLOMERATE ADDED TO WORK AFTER AND IN PARTICULAR FOR THE CONSTRUCTION OF SOLAR-CRAFTED PARALLEL RIBBONS IN WOOD AND CEMENTITIOUS ARMA CONGLOMERATE |
DE102010050122A1 (en) * | 2010-11-03 | 2012-05-03 | Holger Rupprecht | Reinforced concrete plug and method for producing a concrete-wood composite element |
ITBO20120428A1 (en) * | 2012-08-03 | 2014-02-04 | Canducci Group S R L | MODULAR CONNECTOR FOR CONNECTION BETWEEN AN INSOLE AND A STRUCTURAL ELEMENT IN A MIXED WOOD-CONCRETE FLOOR AND PROCEDURE FOR THE CONSTRUCTION OF SUCH A MIXED FLOOR. |
WO2018229320A1 (en) * | 2017-06-15 | 2018-12-20 | Universidad De Valladolid | Template for locating connectors in composite wood-concrete slabs |
CN113047495A (en) * | 2021-04-26 | 2021-06-29 | 上海市建筑科学研究院有限公司 | Assembled wood-concrete combined floor system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2943383T3 (en) | 2014-09-30 | 2023-06-12 | Univ Laval | Constructed system, connector thereof and method for manufacturing the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280228A1 (en) * | 1987-02-26 | 1988-08-31 | Entreprise Paris Ouest | Combined wood and concrete floor |
EP0742323A1 (en) * | 1995-05-12 | 1996-11-13 | TECNARIA S.p.A | Connecting stake with a fixing stirrup with clamps, for the assembly of concrete floors on wooden beams |
DE29706301U1 (en) * | 1997-04-09 | 1997-06-05 | Kneidl Rupert Dr Ing | Mechanical connecting means for power transmission between wood and concrete for structures in wood-concrete composite construction |
FR2751355A1 (en) * | 1996-07-16 | 1998-01-23 | Hilti France | Connector between wooden frame and concrete floor for restoration of old buildings |
-
1998
- 1998-12-23 AT AT98124601T patent/ATE215159T1/en not_active IP Right Cessation
- 1998-12-23 EP EP98124601A patent/EP1013840B1/en not_active Expired - Lifetime
- 1998-12-23 DE DE69804475T patent/DE69804475D1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280228A1 (en) * | 1987-02-26 | 1988-08-31 | Entreprise Paris Ouest | Combined wood and concrete floor |
EP0742323A1 (en) * | 1995-05-12 | 1996-11-13 | TECNARIA S.p.A | Connecting stake with a fixing stirrup with clamps, for the assembly of concrete floors on wooden beams |
FR2751355A1 (en) * | 1996-07-16 | 1998-01-23 | Hilti France | Connector between wooden frame and concrete floor for restoration of old buildings |
DE29706301U1 (en) * | 1997-04-09 | 1997-06-05 | Kneidl Rupert Dr Ing | Mechanical connecting means for power transmission between wood and concrete for structures in wood-concrete composite construction |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10039264A1 (en) * | 2000-08-11 | 2002-02-28 | Ricky Selle | Bending carrier of compound wood/concrete materials, for construction, has a vertical and quadrilateral plate to transfer thrust forces with bent edges to form side wings and sleeves for the mounting screws |
ITCO20100020A1 (en) * | 2010-04-19 | 2010-07-19 | Giovanni Cenci | METALLIC CONNECTOR FOR THE CONNECTION OF WOOD ELEMENTS TO THE CEMENTITIOUS CONGLOMERATE ADDED TO WORK AFTER AND IN PARTICULAR FOR THE CONSTRUCTION OF SOLAR-CRAFTED PARALLEL RIBBONS IN WOOD AND CEMENTITIOUS ARMA CONGLOMERATE |
DE102010050122A1 (en) * | 2010-11-03 | 2012-05-03 | Holger Rupprecht | Reinforced concrete plug and method for producing a concrete-wood composite element |
ITBO20120428A1 (en) * | 2012-08-03 | 2014-02-04 | Canducci Group S R L | MODULAR CONNECTOR FOR CONNECTION BETWEEN AN INSOLE AND A STRUCTURAL ELEMENT IN A MIXED WOOD-CONCRETE FLOOR AND PROCEDURE FOR THE CONSTRUCTION OF SUCH A MIXED FLOOR. |
WO2018229320A1 (en) * | 2017-06-15 | 2018-12-20 | Universidad De Valladolid | Template for locating connectors in composite wood-concrete slabs |
CN113047495A (en) * | 2021-04-26 | 2021-06-29 | 上海市建筑科学研究院有限公司 | Assembled wood-concrete combined floor system |
Also Published As
Publication number | Publication date |
---|---|
DE69804475D1 (en) | 2002-05-02 |
ATE215159T1 (en) | 2002-04-15 |
EP1013840B1 (en) | 2002-03-27 |
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