EP1328686A1

EP1328686A1 - Connector profile for sheet piles

Info

Publication number: EP1328686A1
Application number: EP01982405A
Authority: EP
Inventors: Marco Mascarin; Charles Reinard
Original assignee: International Sheet Piling Co SARL
Current assignee: ArcelorMittal Commercial RPS SARL
Priority date: 2000-10-24
Filing date: 2001-10-08
Publication date: 2003-07-23
Anticipated expiration: 2021-10-08
Also published as: LU90664B1; WO2002035010A1; ES2384611T3; ATE555253T1; EP1328686B1; AU2002213999A1

Abstract

The invention relates to a connector profile, with two asymmetrical connecting pivots (12, 12') for a hook-like sheet pile connector (112, 112'), comprising three arms (16, 18, 20) which extend form a common mid-point (O) in three directions. The first arm (16) has a first hook element (22) on the free end thereof, extending in the direction of the second arm (18), forming the pivot chamber (24) of the first pivot (12) therewith, whereby the pivot opening (26) is defined by the separation of the tip (28) of the first hook element (22) from the second arm (18). The second arm (18) comprises a second hook element (22') on the free end thereof, extending in the direction of the third arm (20), forming the pivot chamber (24') of the second pivot (12') therewith, whereby the pivot opening (26') is defined by the separation of the tip (28') of the second hook element (22') from the third arm (20). The third arm (20) has no hook element.

Description

Connection profile for sheet piles

The present invention relates to a connecting profile for sheet piles.

State of the art

Most sheet piles are now connected by overlapping hook locks (such as LARSSEN locks), which interlock positively and only allow low-amplitude rotation (usually less than 5 °) in the lock connection. Larger changes in direction of the sheet pile are made by inserting a special connecting profile between two sheet piles. Such a connection profile is a strip-shaped profile, with a first connection lock, for a connection with a lock of the first sheet pile, and a second connection lock, for a connection with a lock of the second sheet pile. Connection profiles with symmetrically and asymmetrically arranged connection locks are known.

A connection profile with symmetrically arranged

Connection locks is the OMEGA-18 profile from PROFILARBED. This is a hot-rolled, very compact connecting profile, which has the shape of the Greek letter "ω" in cross-section, with a central web and two arms symmetrical to the central web. The two arms each have a hook element at their free end, the Together with the central web, they form two symmetrical lock chambers, one lock opening being defined by the distance of the tip of the hook element to the central web , so that corners can be made with an internal angle of 90 ° to 135 ° with this OMEGA-18 profile It should be noted that Z-beams connected to the OMEGA-18 profile can be arranged both symmetrically and asymmetrically to the bisector When connecting U-planks with the OMEGA-18 profile, however, only a symmetrical arrangement of the U-planks to the bisector is possible.

With the so-called C12-Prof il, the company PROFILARBED has a connection profile with asymmetrically arranged connection locks in its delivery program. It is a hot-rolled profile with a straight web, which has an overlapping LARSSEN hook at one end and a simple hook at the other end. The overlapping LARSSEN hook is bent at right angles to one side of the web, the simple hook is bent at right angles to the other side of the web. The C12 profile enables the creation of a 90 ° corner with only slight angular deviations (usually less than 5 °). Since the simple hook does not guarantee the necessary safety against unhooking in all cases, it is common to weld the C12 profile on the side of the simple hook to the screed lock. When connecting Z-planks to the C 2 profile, the planks can be arranged both symmetrically and asymmetrically to the bisector. When connecting U-beams, only an asymmetrical arrangement of the bisector is possible.

A connection profile with asymmetrically arranged

Connection locks are also known from WO 98/58131. This profile has a central web at the two ends of which a C-shaped or sickle-shaped hook is arranged. The first hook is bent to one side of the web, a lock opening being defined between the tip of the first hook and the web, in the direction perpendicular to the web. The second hook is bent to the other side of the web, a lock opening being defined between the tip of the second hook and a bead-like thickening on the web, in an approximately parallel direction to the web. The cross-section of this connecting profile is said to have approximately the shape of a seahorse. The arc-shaped inner walls of the two hook strips should encompass the screed locks generously, so that the sheet piling to be connected via the connecting element can have an angle between 45 ° and approximately 125 °. An extruded connecting profile with two hooks which are arranged asymmetrically on a central web is shown in the utility model DE 29821624 U1, Figure 4. This profile is now also known on the market as WALL-PROFIL® V20. It is a profile that has the same wall thickness everywhere. The first hook goes off almost vertically from the web at one end of the web and runs essentially crescent-shaped, its tip practically opposite its starting point on the web and thus defining the lock opening. The second hook is curved approximately in a semicircle, so that its tip in turn faces the web and thus defines the lock opening. With its crescent-shaped and semicircular hook, this profile should be able to be reliably hooked into a LARSSEN lock of a sheet pile, the hooked lock of the sheet pile supposedly being supposed to be pivotable by approximately 60 ° without the risk of unhooking. However, it should be noted that the lock openings of the WALL-PROFIL® V20 can be expanded relatively easily, which means that there is no longer sufficient security against unhooking.

Object of the invention

An object of the present invention is to provide a connection profile with two asymmetrically arranged, equivalent connection locks for hook-shaped sheet pile locks, this connection profile should be more compact and solid than all previous connection profiles with asymmetrical locks. This object is achieved by a connection profile according to claim 1.

Characterization of the invention

A connection profile according to the invention consequently comprises two connection locks, each for a hook-shaped screed lock (such as a LARSSEN lock), the two connection locks being arranged asymmetrically on the connection profile. According to the present invention the two connection locks are formed by three arms which extend in three directions from a common center. The first arm has at its free end a first hook element, which is aligned in the direction of the second arm, in such a way that it forms a lock chamber of the first lock with the second arm, a lock opening being formed by the spacing of the tip of the first hook element to the second arm. The second arm has at its free end a second hook element, which is aligned in the direction of the third arm, in such a way that it forms a lock chamber of the second lock with the third arm, a lock opening being formed by the spacing of the tip of the second hook element to the third arm. In contrast to the other two arms, the third arm has no hook element. It should be noted that in the case of a connecting profile according to the invention, no connecting web is arranged between the two locks. The two locks are directly adjacent to one another, the second arm helping to delimit the lock chamber and lock opening of the first lock and the third arm to delimit the lock chamber and lock opening of the second lock. In this way, an extremely compact and solid connection profile is achieved, which is very resistant to cross-sectional deformations, which under certain circumstances can lead to unhooking.

The two connection locks are advantageously aligned at 90 ° to each other, so that the connection profile e.g. advantageous for the production of a 90 ° corner with two asymmetrically arranged U-planks or two symmetrically arranged Z-planks. In a preferred embodiment, the second lock is essentially a rotation image of the first lock, the rotation being a 90 ° rotation around the common center of the three arms.

Each of the two hook elements is advantageously formed by a wedge-shaped thickening at the end of the respective arm, which extends between a rounded tip and a rounded heel and can be received as a lock head in a lock chamber of the screed lock. This improves the safety against unhooking. The third arm, which does not include a hook element, can be substantially straight. However, its free end could also be bent slightly in the direction of the second hook element in order to further improve the security against unhooking of the second lock.

In an advantageous embodiment of the lock chamber of the first lock, the hook element of the first arm has an essentially flat guide surface, which is adjoined by a cylindrical guide surface, which in turn merges into an essentially flat guide surface on the second arm. In an advantageous embodiment of the lock chamber of the second lock, the hook element of the second arm has an essentially flat guide surface, which is adjoined by a cylindrical guide surface which in turn merges into an essentially flat guide surface on the third arm. The two flat surfaces in a lock chamber are preferably at an angle of 44 ° to 52 ° to each other. Between the flat guide surface of the hook element and the lock opening, the guide surfaces preferably comprise an angular sector of 130 ° to 150 °. This design of the guide surfaces includes to ensure that the lock head of a hook-shaped screed lock (such as a LARSSEN lock) can make larger rotations in the lock chamber of the connection lock in the connection profile, while ensuring perfect guiding and sufficient security against unhooking.

It is particularly important to emphasize that a connection profile according to the invention can be produced by hot rolling. Compared to an extruded profile, the hot-rolled profile can be manufactured more cheaply and with much longer production lengths. It is also less sensitive to deformation than an extruded profile.

In the case of a corner connection with a connecting profile according to the invention, the latter engages with its first connection lock in a hook-shaped lock of the first sheet pile and with its second connection lock in a hook-shaped lock in the second sheet pile. The two Connection locks are preferably designed such that they enable a corner connection with an internal angle in the range from 60 ° to 120 ° by rotating the sheet pile locks in the connecting profile.

In such a corner connection, the connection profile can e.g. connect two U-sheet piles, which are arranged asymmetrically to each other.

In order to make the corner connection with the connection profile according to the invention sufficiently unhookable, it is sufficient that the lock opening of the two connection locks is in each case a few millimeters smaller than the hook width of the sheet pile locks, and the hook width of the two connection locks is each a few millimeters larger than the lock openings of the sheet pile locks, the hook-shaped sheet pile locks are preferably LARSSEN locks.

piece placement

In the following, an embodiment _'of the invention will now be described with reference to the accompanying figures. Show it:

1 shows a cross section through a connecting profile according to the invention;

Fig. 2: a cross section as in Fig. 1, the connecting profile being shown with two hooked LARSSEN locks, which in turn are shown in different angular positions; 3 shows a cross section through a corner connection, with a connecting profile according to the invention, of two asymmetrical to

Bisectors arranged in a bisector; and FIG. 4: a cross section through a corner connection, with a connection profile according to the invention, of two symmetrical to

Z-planks arranged bisecting the angles.

Description of a preferred embodiment of the invention with reference to the figures

A connection profile according to the invention is designated in each case by the reference number 10 in the figures. It is this Connection profile 10 around a strip-shaped, hot-rolled profile with two connection locks 12 and 12 'for a hook-shaped sheet pile lock, such as the LARSSEN locks 112 and 1 12' shown in FIG. 2.

This connecting profile 10 comprises a first arm 16, a second arm 18 and a third arm 20, which extend in a star shape from a common center O in three directions in order to form the two connection locks 12 and 12 '.

The first arm 16 has at its free end a first hook element 22, which is aligned in the direction of the second arm 18, in such a way that it forms a lock chamber 24 of the first lock 12 with this second arm 18. This lock chamber 24 has a lock opening 26, the width of which is determined by the distance between a rounded tip 28 of the first hook element 22 and the second arm 18. The hook element 22 is formed by a wedge-shaped thickening at the end of the first arm which, when the LARSSEN lock 112 is hooked in, is received as a lock head in a lock chamber of the LARSSEN lock 112 (see FIG. 2). The hook width 30, i.e. the distance between the rounded tip 28 and a rounded heel 32, is here a few millimeters larger than the lock opening in the LARSSEN lock 1 12. Likewise, the hook width of the LARSSEN lock 1 12 is larger by a few millimeters the lock opening 26 so that a sufficient lock overlap is ensured.

The second arm 18 has at its free end a second hook element 22 ', which is aligned in the direction of the third arm 20, in such a way that it forms a lock chamber 24' of the second lock 12 'with this third arm 20. The latter is essentially a rotation image of the first lock 12, the rotation being a 90 ° rotation around the common center O of the three arms 16, 18, 20. It has a lock opening 26 ', the width of which is determined by the distance between the rounded tip 28' of the second hook element 22 'and the third arm 20. As in the lock 12, the hook width 30 ', i.e. the distance between the rounded tip 28' and a rounded heel 32 ', is also a few millimeters larger than the lock opening in the LARSSEN lock 112', and that in the lock 12 ' The hook width of the LARSSEN lock 1 12 'is a few millimeters larger than the lock opening 26', so that a sufficient lock overlap is ensured.

The third arm 20, which does not comprise a hook element, is essentially straight in the embodiment of FIG. 1. However, its free end could also be bent slightly in the direction of the second hook element 22 'in order to further improve the safety against unhooking of the second lock 12'.

The lock chamber 24 of the first lock 12 has an essentially flat first guide surface 34 which is formed by the hook element 22 of the first arm 16. This first guide surface 34 is adjoined by a cylindrical guide surface 36, which in turn merges with the second arm 18, shortly before the lock opening 26, into an essentially flat guide surface 38. The radius of the cylindrical guide surface 36 is smaller in the transition region 40 than in the area of the first arm 16. The second lock chamber 24 'is designed similarly. It has an essentially flat first guide surface 34 'which is formed by the hook element 22' of the second arm 18. This first guide surface 34 'is adjoined by a cylindrical guide surface 36' which, on the third arm 20, shortly before the lock opening 26 ', in turn merges into an essentially flat guide surface 38'. The radius of the cylindrical guide surface 36 'is smaller in the transition region 40' than in the region of the second arm 18. The two flat surfaces 34 and 38 (or 34 'and 38') in the lock chamber 24 (or 24 ') are here preferably at an angle of approximately 48 degrees to one another. Between the flat guide surface 34 (or 34 ') of the hook element 22 (or 22') and the lock opening 26 (or 26 '), the guide surfaces preferably comprise an angular sector 42 (or 42') of 130 ° to 150 °. This design of the guide surfaces contributes, among other things, to the fact that the lock head of the LARSSEN lock 112, 112 'in the lock chamber of the connection lock 12, 12' has a larger connection profile Can perform rotations, but a perfect guidance and sufficient unhooking security remains guaranteed (see in particular Fig. 2).

The connecting profile 10 as a hot-rolled profile can have the same length as the longest hot-rolled sheet piles (usually 24 m). As a rule, it has a cross-sectional width of approximately 90 mm and a cross-sectional height of approximately 50 mm and is therefore considerably more compact, but at the same time also much more solid than the extruded connecting profile known as WALLPROFIL® V20. The arrow 42 in Fig. 1 denotes an indentation which extends with respect to the arm 18 in the longitudinal direction of the profile and whose task is to save weight and at the same time to position the profile during rolling.

As indicated in FIG. 2, each of the two LARSSEN locks 112, 1 12 'has a pivoting range of approximately 30 ° in its respective connection lock 12, 12'. This swivel range enables corner connections with an inside angle of 60 ° to 120 °.

FIG. 3 shows a corner connection with an inside angle of 90 ° between two U-planks 100 and 100 'arranged asymmetrically to the bisector 101.

FIG. 4 shows a corner connection with an internal angle of 90 ° between two Z-planks 102 and 102 'arranged symmetrically to the bisector 101.

Claims

claims

1. Connection profile with two connection locks (12, 12 ') for a hook-shaped screed lock (112, 112') of a sheet pile, the two connection locks (12, 12 ') being arranged asymmetrically on the connection profile (10); characterized by a first, second and third arm (16, 18, 20) extending from a common center (O) in three directions to form the two connection locks (12, 12 '), wherein: the first arm (16) has at its free end a first hook element (22) which is aligned in the direction of the second arm (18) such that it forms a lock chamber (24) of the first lock (12) with the second arm (18), a lock opening (26) is determined by a distance between the tip (28) of the first hook element (22) and the second arm (18); the second arm (18) has at its free end a second hook element (22 ') which is oriented in the direction of the third arm (20) such that it is a lock chamber (24') of the second lock with the third arm (20) (12 '), a lock opening (26') being defined by a distance between the tip (28 ') of the second hook element (22') and the third arm (20); and the third arm (20) has no hook element.

2. Connection profile according to claim 1, characterized in that the two connection locks (12, 12 ') are aligned offset by 90 ° to each other.

3. Connection profile according to claim 1 or 2, characterized in that the second lock (12 ') is essentially a rotation image of the first lock (12), wherein the rotation is a 90 ° rotation around the common center (O) of the three arms (16, 18, 20).

4. Connection profile according to one of claims 1 to 3, characterized characterized in that each of the two hook elements (22, 22 ') is formed by a wedge-shaped thickening at the end of the respective arm (16, 18), which extends between a rounded tip (28, 28') and a rounded heel (32, 32 ') extends and can be received as a lock head in a lock chamber of the screed lock (1 12, 112').

5. Connection profile according to one of claims 1 to 4, characterized in that the third arm (20) is substantially straight.

6. Connection profile according to one of claims 1 to 5, characterized in that in the lock chamber (24) of the first lock (12), the hook element (22) of the first arm (16) has a substantially flat guide surface (34) which is followed by a cylindrical guide surface (36) which merges into a substantially flat guide surface (38) on the second arm (18).

7. Connection profile according to one of claims 1 to 6, characterized in that in the lock chamber (24 ') of the second lock (12'), the hook element (22 ') of the second arm (18) has a substantially flat guide surface (34' ) which is adjoined by a cylindrical guide surface (36 ') which merges into a substantially flat guide surface (38') on the third arm (20).

8. Connection profile according to claim 6 or 7, characterized in that the two flat surfaces (34, 38) (34 ', 38') in a lock chamber (24, 24 ') are at an angle of 44 ° to 52 ° to each other ,

9. Connection profile according to claim 6, 7 or 8, characterized in that the lock chamber (24, 24 ') between the flat guide surface (34, 34') of the hook element (22, 22 ') and the lock opening (26, 26') an angular sector (42, 42 ') from 130 ° to 150 °.

10. Connection profile according to one of claims 1 to 9, characterized in that it is hot rolled.

1 1. corner connection of two sheet piles, characterized in that a connecting profile (10) according to one of claims 1 to 10 with its the first connection lock (12) engages in a hook-shaped lock (112) of a first sheet pile and with its second connection lock (12 ") in a hook-shaped lock (112 ') of a second sheet pile.

12. Corner connection according to claim 11, characterized in that the two connection locks (12, 12 ') of the connecting profile (10) are designed such that they have a corner connection with a rotation of the sheet pile locks (112, 112') in the connecting profile (10) allow an interior angle in the range of 60 ° to 120 °.

13. Corner connection according to claim 11 or 12, characterized in that the connecting profile (10) connects two U-planks (100, 100 ') which are arranged asymmetrically to one another.

14. Corner connection according to one of claims 1 1 to 13, characterized in that: the lock opening (26, 26 ') of the two connection locks (12, 12') each a few millimeters smaller than the hook width of the sheet pile locks (112, 1 12 ' ) is; and the hook width (30, 30 ') of the two connection locks (12, 12') is each a few millimeters larger than the lock openings of the sheet pile locks (112, 112 ').

15. Corner connection according to one of claims 11 to 14, characterized in that the two hook-shaped sheet pile locks are LARSSEN locks (1 12, 1 12 ').