EP1736606B1 - Rigid or articulated and pluggable connection for structural elements - Google Patents

Abstract

The push-fit connection is made from a first connector (8) and a second connector (9) connected to the frame elements by anchor rods (6,7) which are securely glued into the supporting frame elements. The connectors engage in one another and are connected to one another through at least one coupling part (5) such as a bolt inserted across the longitudinal direction of the rods through recesses on contacting faces of the support frame elements. The support frame structures can be made from wood or concrete.

Description

The invention relates to a connection for structural elements according to the preamble of claim 1 or 13.

Such compounds are known in timber construction, for example as connections of straight and curved beams but also as corner joints of frame structures and as a cross connection of beams and columns, for example in floor frames.

In the prior art, such compounds in the form of overlaps are known, being used as connecting means, for example, dowels and building screws. Due to the unfavorable power flow and in particular by deflection from the support plane and the compliance of the dowel rod here comparatively soft and less powerful connections arise.

Also known compounds by slotted sheets. Here, the structural elements to be connected can lie in the same supporting plane, whereby the power flow is improved.

By the US-A-5,954,447 is a generic connection has become known. This has according to the Figures 11a and 11b two sleeves, which are each inserted into a ring milling in an end face of a structural element. If two structural elements with two such spaced connections to connect with each other, so the distance between the joints by shrinkage and swelling of the structural elements can change, so that the compounds can no longer be joined or not dismantled. The production of Ringfräsungen is also comparatively complex and very limited in depth. It can therefore be used only relatively short sleeves.

By the EP 1 300 521 A a connection has become known in which two plate-shaped connecting elements are provided, which are each arranged sunk in one of the two structural elements and which are locked together by means of bolts. To attach the plate-shaped connecting parts to the structural elements, these have a plurality of holes through which screws or dowels are pushed through.

The invention has for its object to provide a plug-in connection of the type mentioned, which is particularly suitable for bumps with great strength and rigidity in carriers, with the even higher forces (efficiency up to 1.0 from the gross cross section) are receivable and still inexpensive to produce and can be mounted.

The object is achieved in a generic connection according to claim 1 or 13. The inventive compound can be prepared for very different connection arrangements, for example, corner joints, intersections and joints equally with a very high strength and rigidity. The form-fitting in the structures glued anchor rods can be correspondingly perpendicular or inclined to the connection parts, so that all forces can be optimally absorbed in all cases. The compound is also aesthetically advantageous because it is inconspicuous, which is essential, for example, in visible wooden structures. The structural elements can be completely manufactured with the connection parts and the anchor rods in the factory. The assembly can be done very easily and quickly and in any weather. The compound is particularly suitable for structural elements, such as support beams made of wood, but in principle, a connection of structures made of other materials such as concrete is possible.

A particularly high strength and rigidity results from the fact that the two connecting parts are formed as strips and put together with groove and comb. The locking of the two connecting parts is then particularly simple and stable as well as solvable, if in this case bolts are used, which are transverse to the longitudinal direction of the anchor rods are inserted into the connection parts. These bolts preferably run in the connection plane and are barely visible on the outside. For receiving the bolts, the connecting parts have corresponding holes.

According to a development of the invention, it is provided that the structural elements have recesses for the abovementioned bolts on the contacting surfaces.

According to a development of the invention it is provided that the structural elements have at least two mutually spaced, arranged connecting members each having a first and a second connecting part and that these two connecting members are firmly connected to each other with at least one pulling or pressing element.

The tension or pressure element is preferably designed as a rod. In particular, it is recessed in a groove and runs parallel to the connection plane. The tension or pressure element can be welded to the connection parts, for example. The connecting rods and the corresponding connecting parts then form a unit.

The inventive compound is formed according to an embodiment of the invention as a rotary joint. The two connecting parts are designed as half shells. Between the half-shells an axle is mounted, which is pivotally connected to the two connecting parts. The cylindrical shells are positively connected with glued-in anchor rods (tensile and pressure resistant) to the structural element. The connection is made according to an embodiment of the invention with two rings which engage around the two half-shells and the axle. Such a hinge connection can be made comparatively easily and is characterized by a high strength and rigidity and in particular flexural rigidity. The invention relates to articulated, pressure and tension-resistant connections between the structural elements.

Further advantageous features emerge from the dependent claims, the following description and the drawings.

Figur 1

eine räumliche Ansicht eines Träger aus zwei Tragwerkelementen, die erfindungsgemäss miteinander verbunden sind,

Figur 2

eine räumliche Ansicht der Verbindungsvorrichtung, mit der die beiden Tragwerkelemente gemäss Figur 1 miteinander verbunden sind,

Figur 3

eine räumliche Ansicht eines Trägers, bei dem zwei Tragwerkelemente über Eck erfindungsgemäss miteinander verbunden sind,

Figur 4

eine räumliche Ansicht der Verbindungsvorrichtung, mit der die beiden Tragwerkelemente gemäss Figur 3 miteinander verbunden sind,

Figur 5

eine räumliche Ansicht eines weiteren Trägers, bei dem zwei Tragwerkelemente erfindungsgemäss miteinander verbunden sind,

Figur 6

eine räumliche Ansicht der Verbindungsvorrichtung, mit welcher die beiden Tragwerkelemente gemäss Figur 5 miteinander verbunden sind,

Figur 7

eine räumliche Ansicht eines Trägers, bei dem drei Tragwerkelemente erfindungsgemäss miteinander verbunden sind,

Fig. 8-10

räumliche Ansichten weiterer Verbindungsvorrichtungen zur Herstellung einer erfindungsgemässen Verbindung,

Figur 11

schematisch eine Ansicht einer erfindungsgemässen Verbindung, die als Drehgelenk ausgebildet ist,

Figur 12a

ein Schnitt durch das Drehgelenk gemäss Figur 11,

Figur 12b

eine Ansicht des Drehgelenks,

Figur 13

eine räumliche Ansicht eines Tragelementes mit drei Anschlussteilen,

Figur 14

eine Ansicht eines Zug-Ankerstabes,

Figur 15

eine Ansicht eines Zug- bzw. Druck-Ankerstabes,

Figur 16

eine räumliche Ansicht eines Trägers mit einer T-förmigen Verbindung und

Figur 17

eine räumliche Ansicht eines Trägers nach einer weiteren Variante.

Embodiments of the invention will be explained in more detail with reference to the drawing. Show it:

FIG. 1

a spatial view of a carrier of two structural elements, which are interconnected according to the invention,

FIG. 2

a spatial view of the connecting device, with the two structural elements according to FIG. 1 connected to each other,

FIG. 3

a spatial view of a carrier, in which two structural elements are connected to each other according to Eck,

FIG. 4

a spatial view of the connecting device, with the two structural elements according to FIG. 3 connected to each other,

FIG. 5

a spatial view of another carrier, in which two structural elements are connected according to the invention,

FIG. 6

a spatial view of the connecting device, with which the two structural elements according to FIG. 5 connected to each other,

FIG. 7

a spatial view of a carrier, in which three structural elements are connected according to the invention,

Fig. 8-10

Spatial views of further connecting devices for producing a compound according to the invention,

FIG. 11

1 is a schematic view of a connection according to the invention, which is designed as a rotary joint,

FIG. 12a

a section through the hinge according to FIG. 11 .

FIG. 12b

a view of the swivel joint,

FIG. 13

a spatial view of a support element with three connecting parts,

FIG. 14

a view of a tension anchor rod,

FIG. 15

a view of a tension or pressure anchor rod,

FIG. 16

a spatial view of a carrier with a T-shaped connection and

FIG. 17

a spatial view of a carrier according to another variant.

The FIG. 1 shows a support 1, for example a beam of a supporting structure, which has a first structural element 2 and a second structural element 3, which with the in FIG. 2 connecting device 4 shown rigidly connected to each other. The two structural elements are, for example glulam elements, but can also be other wood elements or even concrete elements, for example. The connection between the two structural elements 2 and 3 is pluggable, ie the connection can be prepared in the factory. The two structural elements 2 and 3 are put together on site, which can be done quickly and easily.

In the FIG. 2 shown connecting device 4 has a first connecting member 43 and a second connecting member 44, which are fixedly connected to each other with two pulling or pressing elements 15. The two connecting members 43 and 44 each have a first connection part 8 and a second connection part 9. The two connection parts 8 are also connected to one of the two tension or pressure elements 15 and the other two connection parts 9 with one of the tension or pressure elements 15. The two connection parts 8 and 9 are each plugged together, wherein the connection parts 8 each have a groove 22 and the connection parts 9 have a corresponding comb 23. With transverse bolts 5, the connecting parts 8 and 9 are respectively locked together. The FIG. 13 shows holes 41 in the comb 23 of the connecting part 9, through which the bolts 5 are inserted therethrough. Corresponding holes are provided in the connection parts 8.

The connecting parts 8 and 9 are each inserted into a groove 46 and 47 of the adjacent surfaces of the structural elements 2 and 3. These grooves 46 and 47 are Längsfräsungen along the end faces. At the in FIG. 1 As shown embodiment, the two structural elements 2 and 3 are held together with two connecting devices 4. Basically, a design is conceivable in which only one Connecting device 4 or more than two connecting devices 4 are provided. Since the connecting parts 8 and 9 are countersunk in grooves 46 and 47, as mentioned, the end faces of the connecting members 43 and 44 and the outer sides of the bolts 5 are visible on the carrier 1 only on the narrow sides. In both cases, here are also covers, for example, with wood inserts conceivable, so that the connecting devices 4 are not visible on the outside.

In order to connect the connecting parts 8 and 9 with the structural elements 2 and 3, anchor rods 6 and 7 are provided, which are glued into corresponding holes in the structural elements 2 and 3 fixed and in particular fixed in shape. The anchor rods 6 and 7 are in particular circular cylindrical grooved steel rods, which are each firmly connected at one end to a connecting part 8 and 9 respectively. The connection can be for example a welded or screwed connection.

In the FIG. 2 Anchor rods 7 each have a constriction 10, this constriction causes a ductile behavior of the connection. The anchor rods 6 and 7 have for anchoring on the outside, for example, not shown circumferential grooves. The glue used here is for example an epoxy resin or another suitable glue. The connecting parts 8 and 9 are preferably designed as steel strips, which are as shown substantially longer than wide or high. The two connecting members 43 and 44 are anchored to the tension or compression rods 15 in the transverse direction to the carrier 1 and with the anchor rods 6 and 7 fixed in the structural elements 2 and 3. Thus, high forces in the longitudinal direction of the carrier 1, bending moments of the carrier 1 and transverse forces can be absorbed. The compound is therefore particularly suitable, for example, for very long support beams, which are composed of two or more structural elements 2 and 3.

The FIG. 3 shows a carrier 11, in which two structural elements 12 and 13 are firmly connected to each other via a corner. The corner is right-angled here, but in principle other angles are also conceivable here. The connection is made with two in FIG. 4 shown connecting devices 14 which extend parallel to each other in the connecting plane. Basically, a design is conceivable in which only one Connecting device 14 or more than two connecting devices 14 are provided. The connecting devices 14 are basically constructed as shown in FIG Figures 1 and 2 explained above. However, the anchor rods 6 and 7 here extend inclined to the longitudinal directions of the connecting parts 8 'and 9'. However, the anchor rods 6 and 7 can also be fanned, the force can be anchored accordingly in the structural element. The tie rods 7 are claimed to train and each have a constriction 10. In the claimed on pressure anchor rods 6 such a constriction 10 is not provided. As can be seen, four anchor rods 7 and six anchor rods 6 are arranged in the pressure range. In addition, four bolts are arranged in the tension area and six bolts 5 in the pressure area. By this different number of anchor rods 6 and 7 and the bolt 5, the expected corresponding forces in the different zones can be optimally met. The tension or pressure elements 15 must take over the differential forces and shear forces. The tension or pressure elements 15 are firmly anchored to the structural elements 12 and 13. This simultaneously prevents swelling or shrinkage in the area of the connection.

The FIG. 5 shows a T-shaped support 16 with a horizontally extending structural element 17 and a vertically extending structural element 18. The connection is made with one or more of in FIG. 6 This connecting device 19 has a connecting part 20 and a connecting part 21 which, as explained above, are connected to one another by transverse bolts 5. The connecting part 20 is firmly connected with two upwardly projecting anchor rods 6 and the connecting part 21 with two downwardly projecting anchor rods 6. The anchor rods 6 are firmly glued in the structural element 17 and the downwardly projecting anchor rods 6 are glued in the structural element 18. The connection is loaded under pressure, but can also absorb tensile forces.

The FIG. 7 shows a cross-shaped support 24 with two vertically extending structural elements 25 and 27 and with a horizontally extending support member 26. These structural elements 25, 26 and 27 are connected to the three in FIG. 9 shown connecting devices 29 connected to each other. This has two upper connecting parts 20 and 21, which the two structural elements 25 and 26 with each other connect. In the structural element 25, the two upwardly directed anchor rods 6 are glued. In the structural element 26 middle anchor rods 6 'are glued, which extend from top to bottom through the supporting element 26. The connection between the structural element 26 and the structural element 27 takes place with lower connection parts 20 'and 21'. The connection part 20 'is fixedly connected to the anchor rods 6', while the connection part 21 'is connected to downwardly projecting anchor rods 6 "which are glued into the support element 27. The support 24 thus has a first connection between the structural elements 25 and 26 This results in a particularly stiff and firm connection, with which large transverse forces are transmitted directly to the supporting structure element 27 via the anchor rods through the supporting element 26. Sources and shrinkage, in particular in the area of the structural element Structural element 26 is therefore prevented, in which case swelling and shrinkage is prevented in particular by anchor rods 29, which extend over the entire height of structural element 26.

The direction of the tie rods 6 and 7 with respect to the longitudinal direction of the connecting parts 8 and 9 or 20 and 21 can be optimally adapted to the design and direction of the structural elements. Preferably, these anchor rods 6 and 7 lie in the plane of the two connecting parts 8 and 9 or 20 and 21.

The FIG. 8 shows a connecting device 28, in which downwardly projecting tie rods 6 parallel to each other and upwardly directed tie rods 6 'extend fan-like.

The FIG. 10 shows a connecting device 30, in which the connecting part 9 with an anchor rod 6 and the connecting part 8 with two anchor rods 6 are connected. In addition, the connection part 9 is connected to a tension element 15, which may be connected to a further connection part 9, not shown here.

The FIG. 11 shows a carrier 31, in which a supporting element 32 is pivotally connected to a second structural element 33. A connecting device 34 has a connection part 36 and a connection part 37, which are formed as half-shells and between which an axle 35 is mounted. The two connecting parts 36 and 37 each have at each end a laterally and upwardly open recess 38, in each according to Fig. 12a a ring 39 is inserted. The two rings 39 hold the two connecting parts 36 and 37 together, so that they can move limited on the axle 35 in the circumferential direction. The Fig. 12b shows the two rings 39 before placing on the connecting parts 36 and 37. If the two rings 39 are placed, they can with the in FIG. 12a shown washers 52 and fixed with a screwed onto the axle 35 nut 53. The two connecting parts 36 and 37 are each firmly connected to the structural element 32 or 33, as explained above, with one or more glued-in anchor rods 6. The double arrows 48 indicate in which directions the two structural elements 32 and 33 are pivotable about the axis of the axle pin 35. The maximum pivot angle is determined here in particular by the formation of the two connecting parts 36 and 37 and may be different.

The FIG. 13 shows a structural element 49 prior to assembly. On the structural element 49 three connecting parts 9 are attached. Front side protrudes as shown in each case before the comb 23. This has a plurality of holes 41 for receiving the bolts 5, not shown here. These bolts 5 are inserted through all three ridges 23. Thus, these bolts 5 can be inserted into said holes 41, 49 corresponding recesses 42 are incorporated into the structural element. Corresponding recesses are also provided in the case of the further structural element not shown here. The connection parts 9 are, as explained above, respectively inserted into a groove 47 in such a way that only the comb 23 projects beyond the end face of the support element element 49. To connect two structural elements thus only the connecting parts 8 and 9 must be plugged together and the bolts 5 are used. The bolts 5 are formed so that they are preferably held frictionally without further fastening means. The connection is preferably releasable by the bolts 5 are knocked out again. By inserting the bolt 5, the compound can then be joined together again.

The FIG. 14 shows a view of the anchor rod 7, which has a constriction 10 for reasons of ductility as mentioned above. For fixing the anchor rod 7 this has over its entire length grooves 51 or similar depressions. In addition, a mounting slot 50 is provided for mounting at a front end.

Finally, the shows FIG. 15 an anchor rod 6, which also has a mounting slot 50 and which is also provided over its entire length with grooves 51. Both the anchor rod 6 and the anchor rod 7 are preferably formed circular cylindrical.

Further possible carriers 54 and 55 are in the FIGS. 16 and 17 , The anchor rods 6, which are not visible here, run correspondingly to the structural elements.

LIST OF REFERENCE NUMBERS

1

carrier

2

Structural element

3

Structural element

4

connecting device

5

bolt

6

tie rod

7

tie rod

8th

connector

9

connector

10

constriction

11

carrier

12

Structural element

13

Structural element

14

connecting device

15

tension element

16

carrier

17

Structural element

18

Structural element

19

connecting device

20

connector

21

connector

22

groove

23

Comb

24

carrier

25

Structural element

26

Structural element

27

Structural element

28

connecting device

29

connecting device

30

connecting device

31

carrier

32

Structural element

33

Structural element

34

Connecting device (joint)

35

axle

36

connector

37

connector

38

recess

39

ring

40

connector

41

drilling

42

recess

43

connecting member

44

connecting member

45

drilling

46

groove

47

groove

48

double arrow

49

Structural element

50

mounting slot

51

grooves

52

washer

53

mother

54

carrier

55

carrier

Claims (14)

1. Flexurally rigid and pluggable connection for support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49), with a first junction part (20) which can be connected by at least a first connecting part (6, 7) to a first support structure element (2, 3; 12, 13; 17, 18; 25, 26, 27; 49), and with a second junction part (9, 21) which can be connected by at least a second connecting part (6, 7) to the other support structure element (2, 3; 12, 13; 17, 18; 25, 26, 27; 49), wherein the two junction parts (8, 9; 20, 21) engage into one another and are connected to one another by at least one coupling part (5), characterized in that the said two connecting parts (6, 7) are anchor rods (6, 7) which can be glued in a dimensionally stable manner into a respective hole in the support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) and which are in each case fixedly connected to one of the two junction parts (8, 9; 20, 21), and in that the two junction parts (8, 9; 20, 21) are strips which are locked to one another in a plugged-together manner with a groove (22) and comb (23).
2. Connection according to Claim 1, characterized in that the two junction parts (8, 9; 20, 21) can each be inserted into a groove (46, 47) of a support structure element (2, 3; 12, 13; 17, 18; 25, 26, 27; 49).
3. Connection according to Claim 1 or 2, characterized in that the two junction parts (8, 9; 20, 21) are connected releasably to one another by means of bolts (5), wherein the bolts (5) can be inserted transversely to the longitudinal direction of the anchor rods (6, 7) through cutouts (42) in mutually contacting surfaces of the support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) to be connected.
4. Connection according to Claim 3, characterized in that the two junction parts (8, 9; 20, 21) each have holes (49, 45) for accommodating the transversely extending bolts (5).
5. Connection according to one of Claims 1 to 4, characterized in that it is provided for support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) made of wood or concrete.
6. Connection according to one of Claims 1 to 5, characterized in that it comprises at least two spaced-apart connecting members (43, 44) which each have a first junction part (8, 20) and a second junction part (9, 21) which are fixedly connected to one another by at least one tension element (15).
7. Connection according to Claim 6, characterized in that the tension element (15) is designed as a rod.
8. Connection according to Claim 6 or 7, characterized in that the tension element (15) is arranged embedded in a groove (22, 46, 47) of a corresponding support structure element (2, 3; 12, 13; 17, 18; 25, 26, 27; 49).
9. Connection according to one of Claims 6 to 8, characterized in that the tension element has two rods (15) which extend parallel to one another and which are each connected fixedly at one end to a junction part (8, 9; 20, 21).
10. Connection according to one of Claims 1 to 6 and two support structure elements connected thereby, characterized in that the support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) are parts of a support beam.
11. Connection according to one of Claims 1 to 5 and two support structure elements connected thereby, characterized in that the two interconnected support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) bear with their end faces against one another at a connection point, and in that the anchor rods (6, 7) and the two junction parts (8, 9; 20, 21) are arranged embedded into the end faces of the support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) so as to be substantially invisible from outside.
12. Connection according to one of Claims 1 to 7 and two support structure elements connected thereby, characterized in that the support structure elements (2, 3; 12, 13; 17, 18; 25, 26, 27; 49) are connected to one another rectilinearly, diagonally, in a cross shape or in a T shape.
13. Articulated and pluggable connection for support structure elements (32, 33), with a first junction part (36) which can be connected by at least a first connecting part (6) to a first support structure element (32), and with a second junction part (37) which can be connected by at least a second connection part (6) to the other support structure element (33), wherein the two junction parts (36, 37) are connected to one another by at least one plugging part (39), characterized in that the said two connecting parts (6) are anchor rods (6) which can be glued in a dimensionally stable manner into a respective hole in the support structure elements (32, 33) and which are each fixedly connected to one of the two junction parts (36, 37), and in that the two junction parts (8, 9; 20, 21) are each designed as shells (36, 37) to form a pivot joint, between which shells an axle bolt (35) is mounted.
14. Connection according to Claim 13, characterized in that the two junction parts (36, 37) are connected to one another by at least one ring (39).

Images