CONNECTING ELEMENT FOR SPUNBOULDS
The invention relates to a preformed Anschweissspundbohle constant cross-section for building an arrangement of sheet piling components, in particular for building a combi-sheet pile wall. Furthermore, the invention relates to an arrangement according to claim 17 of several sheet pile wall components, in which such Anschweissspundbohle is provided.
Arrangements of sheet piling components, such as conventional sheet piles of interlocked sheet piles or so-called Komi walls, in which sheet pile components with different bending and tensile strengths, for example support elements, such as double T-beams, T-beams or pipe piles, and conventional sheet piles are combined with each other since long known. While in the construction of conventional sheet piles, the sheet piles are coupled together by means of their locks, when building a combination sheet pile wall, the support elements to which the sheet piles are to be coupled, are subsequently provided with appropriate locks in which are to be arranged between the support elements sheet piles ,
Since no locks are usually formed on a conventional carrier element, such as a double-T carrier, either additional connecting elements are used, which are connected in a form-fitting manner, for example, by being pushed onto a preformed attachment section of the carrier element. Or to the support member a welding element is welded, which is provided with a lock for mounting the lock of SpundbohIe. Such welding elements are known for example from DE 201 21 727 U1 or DE 101 60 125 A1. Based on this prior art, it was an object of the invention to improve the current state of the art, especially in the field of construction of combi-sheetpiles.
According to the invention, this object is achieved by a preformed Anschweissspundbohle with the features of claim 1. Furthermore, the object is achieved by an arrangement of several sheet piles, in which the inventive Anschweissspundbohle is used.
An essential idea for the invention is that in the construction of arrangements of sheet pile wall components, in particular in the construction of combi-sheet piles, not only on the use of the usual welding element, but also to be suspended in this sheet pile can be dispensed with. According to the invention, therefore, a preformed Anschweissspundbohle is proposed, which is not only weld directly to the sheet pile wall component, but also has such a sufficiently high resistance moment that the previously hanged in the welding element sheet pile can be omitted. According to the invention, this is achieved, on the one hand, by the fact that the inventive weld-on sheet pile is provided with a preformed weld-on end, which is designed for direct welding to the sheet pile wall component.
On the other hand, the inventive Anschweissspundbohle considered in cross-section is so broad that they can replace the previously hanged sheet pile. According to the invention, the Anschweissspundbohle this is provided with a Z-shaped cross-section whose resistance moment is so high that the Anschweissspundbohle can withstand both the forces acting during the introduction of the sheet pile in the underground forces and the forces to be supported later. In this context, it is noted that the term "preformed Answweissspundbohle" understood in the context of the invention, a Anschweissspundbohle whose final shape is already determined during manufacture and completed immediately after completion.
The term "preformed" is to be made clear that it is not a sheet pile in the inventive Anschweissspundbohle, which has been prepared by subsequent separation of locks, for example, at the construction site of the combi-sheet pile wall. Rather, it is the inventive preformed Anschweissspundbohle a product that is to be produced in large quantities and installed without further processing, but not to custom-made, which are produced by subsequent processing of conventional sheet piles.
A further significant advantage of the invention-type lead-on sheet pile is also that, depending on the type of arrangement of sheet-pile wall components, even the use of conventional sheet-piles is completely dispensed with, as will be explained in detail later.
Finally, it is noted that the inventive Anschweissspundbohle has over its entire length considered consistent cross section and all the information in the description refer to a consideration of the Anschweissspundbohle in cross section.
Advantageous developments of the invention will become apparent from the following description, the dependent claims and the drawings.
Preferably, the first and the second leg considered in cross-section of the Anschweissspundbohle the same length. This results in particular from the fact that the inventive Anschweissspundbohle is preformed and is not subsequently manufactured by separating and associated shortening of the legs of a conventional sheet pile.
In order to achieve the most uniform possible arrangement of the sheet pile wall components, in particular a rectilinear orientation of the further sheet pile wall component to be suspended in the weld sheet pile, the first leg and the second leg extend in at least approximately parallel planes. Alternatively, however, it is also possible, for example, for erecting so-called closed cells in which the sheet pile components are coupled together to form a self-contained arrangement, the legs so that they extend in planes that intersect at a predetermined angle, the legs So at an angle inclined to each other.
In a particularly preferred embodiment of the inventive Anschweissspundbohle the lock is designed such that the moment of resistance of the castle against tensile forces (hinged lock the sheet pile component) is greater than the moment of resistance of the transition between the first leg and the central web and greater than the moment of resistance of the transition between the second leg and the middle bridge. This ensures that at extremely high tensile loads on the Anschweissspundbohle, as they may occur, for example, when hitting a hinged in the Anschweissspundbohle sheet pile on an object located in the ground, such as a boulder during ramming, not to a castle break the engaged with each other Lead locks.
Rather, the Anschweissspundbohle then gives the opportunity to indulge defined in the Z-shaped section, which is formed from the two legs and the central web, by this lengthens and thus reduces the resulting stresses. This is of particular importance if the stability of the arrangement of sheet piling components is not ensured by the sheet piles themselves, but by support members connected to them. This inventive design of the Anschweissspundbohle ensures that the arrangement remains tight overall and at the same time the stability of the arrangement is maintained.
Furthermore, it is of particular advantage if the lock of the Anschweissspundbohle is designed and dimensioned so that between the lock and the castle to be hooked the other sheet pile component a Schwenkbar-speed of at least + - 5 °, preferably of at least + [deg.], is maintained from the neutral position in which the second leg of the Anschweissspundbohle and the hinged in the lock of the Anschweissspundbohle leg of the sheet pile wall component with each other, is maintained. Due to the possible pivoting of the interlocking locks is achieved that the
Locks at least within limits can perform evasive movements and so also a lock break can be avoided.
In order to facilitate the welding on and to better form the welds between the inventive Anschweissspundbohle and the sheet pile wall component is proposed in a particularly preferred embodiment of the invention Anschweissspundbohle provided at the weld end a weld-on. The weld-on flange is shaped such that it preferably extends uniformly beyond the two flat sides of the first leg, the weld-on flange having the flange side facing away from the first leg being intended to be welded onto the sheet-pile wall component.
In this embodiment, it is also of particular advantage if the side facing away from the first leg flange side is concave in cross-section. As a result, the welding of the Anschweissspundbohle is facilitated in particular curved or uneven surfaces.
Furthermore, it is proposed that the welding flange be viewed in the cross-section of the Anchweissspundbohle in such a way that the weld-on flange extends at right angles to the first leg. However, it is also possible to make the welding flange inclined at an angle of more than 90 ° with respect to the first leg. The latter is useful if the Anschweissspundbohle is to run in a defined angular position with respect to the sheet pile wall component, but the sheet pile wall components to be further suspended in a straight line must be arranged. However, the weld-on end of the weld-on sheet pile according to the invention can also be designed without a weld-on flange and, for example, end in a rounding or be provided with a chamfer on at least one of the flat sides of the first leg.
The opening angle between the central web and the first leg is preferably in a range of 90 [deg.] To 145 [deg.], Particularly preferably in a range of 120 [deg.] To 145 [deg.], While the opening angle between the The central web and the second leg is also preferably in a range of 90 ° to 145 °, more preferably in a range of 120 ° to 145 °. Preferably, the opening angles are chosen such that the second leg is aligned as possible with the course of the sheet pile wall component to be suspended in the lock of the second leg.
The opening angle are further selected so that at an extreme tensile load of the lock of Anschweissspundbohle defined by the opening angle bending moments acting in the transitions of the central web in the two legs, so high enough that the Z-shaped extending Anschweissspundbohle possibly even pulled apart and is lengthened to a flat pile.
In a particularly preferred embodiment of the inventive Anschweissspundbohle each a thickening material is formed at the transition of the first leg in the central web and at the transition of the second leg in the central web to selectively increase in these transition regions, the moment of resistance of Anschweissspundbohle. Again, it is preferably proposed to specify the moment of resistance of each transition region so that at extreme tensile loads does not break the lock of Anschweissspundbohle, but the Anschweissspundbohle yields in its Z-shaped extending portion.
The material thickening is preferably provided on the inner corner of the respective transition and merges gently to form a radius of the flat side of the respective leg in the central web in order to achieve a uniform as possible voltage curve. The inventive Anschweissspundbohle is provided depending on the application with different lock shapes.
Particularly preferred, however, the formation of the lock has shown as a head strip with an oval cross-section, wherein the main axis of the oval of the head strip is perpendicular to the second leg and the width of the oval viewed in the direction of the major axis at least equal to zweibis three times the thickness of the second leg. This form of lock is characterized by a very high moment of resistance to both tensile and bending loads and at the same time allows a high degree of pivoting movements of the sheet piling component to be suspended.
Alternatively, it is proposed that the lock form a claw strip in cross-section, which has two mirror-symmetrically extending with respect to the second leg hook strips, the hook strips delimiting a lock jaw. The thickness of each hook strip preferably corresponds at least approximately to the material thickness of the second leg. Again, the claw bar offers very good values for the pivoting of the hinged locks. In addition, the claw strip is characterized by its symmetrical design by a very high moment of resistance, especially against tensile loads.
In a preferred embodiment of the claw strip, the two hook strips are arc-shaped and enclose a cross-sectionally oval lock chamber, the main axis of the oval extending transversely to the longitudinal direction of the second leg. This lock is particularly suitable for hanging so-called PZ sheet piles (ball-and-socket sheet piles).
In an alternative development of the claw strip, each hook strip has an at least approximately perpendicular to the second leg extending short connecting portion, which adjoins an at least approximately parallel to the second leg extending transition section whose free end merges into an at least approximately perpendicular to the second leg extending hook portion. This shape of the hook strips results in a cross-section, at least approximately square or rectangular lock chamber.
This shape of the claw bar not only provides sufficient pivotability for the lock of the sheet piling component to be suspended, such as a ball lock of a PZ sheet pile, but also allows movement of the hinged lock of the sheet piling component within the claw bar in the axial direction, i.e. viewed in the longitudinal direction of the second leg (seen in cross section). This is particularly advantageous in the provision of the inventive Anschweissspundbohle on a tubular pile as a carrier element, since tube piles experience seen over its axial length considered large deviations in their cylindrical shape, parallelism and roundness. By forming the castle as a rectangular claw bar so a particularly trouble-free hooking and ramming the sheet pile wall component is given.
Furthermore, in an alternative embodiment of the inventive Anschweissspundbohle the lock is designed as a Larssen hook, the Larssen hook of the Anschweissspundbohle is dimensioned and designed such that the Larssen hook of the sheet pile wall component to be hooked by at least + - 5 [deg.] From the neutral position is pivotable.
According to a second aspect, the invention is directed to an arrangement of sheet piling components, in which at least one inventive Anschweissspundbohle is provided. The arrangement of sheet pile wall components may be a conventional sheet pile wall arrangement of sheet piles coupled to each other, wherein the Anschweissspundbohle is welded to one of the sheet piles of the sheet pile wall assembly and, for example, forms a connection with another sheet pile wall section.
Particularly preferably, the arrangement is designed as a combination sheet pile wall, in which the invention Anschweissspundbohle to a support element, for example a double-T-beam, a tubular pile or the like, welded and in the castle either a sheet pile or just another inventive Anschweissspundbohle, optionally also a conventional welding element is mounted.
A particularly preferred embodiment of the arrangement is formed only from tubular posts and inventive Anschweissspundbohlen, wherein at each tubular pile in each case two inventive Abschungssspundbohlen are welded. The pipe piles provided with the inventive Anschweissspundbohlen are then rammed into the ground that always the Anschweissspundbohle a pipe pile can be hung in the Anschweissspundbohle the immediately adjacent pipe pile. This makes it possible to erect an extremely robust combi-sheet piling with minimal effort, and in particular the used Anschweissspundbohlen can also compensate for extreme deviations in the pipe piles in terms of their cylindrical shape, parallelism and roundness.
Since pipe piles are relatively easy to produce compared to other support elements, such as T-beams and double-T beams, comparatively cost-effective combination sheet pile walls can be erected when using pipe piles. Furthermore, this type of arrangement is particularly suitable for countries where used pipes are available that can be used as pipe piles.
The invention will be explained with reference to an embodiment and several modifications of the embodiment with reference to the drawings. It shows:
Figure 1 is a plan view of the end face of a novel Anschweissspundbohle with a head strip as a lock and a weld-on at the welding end. Figure 2 is a plan view of the front side of a first modification of the invention Anschweissspundbohle with a C-shaped claw bar as a lock.
Fig. 3 is a plan view of an assembly of two tubular piles joined together by the beaten sheet piles shown in Figs. 1 and 2;
Fig. 4 is an enlarged view of the interlocking locks of the arrangement of Fig. 3;
Fig. 5 is a plan view of the end face of a second modification of the invention Anschweissspundbohle with a claw strip whose
Lock inner chamber viewed in cross section is at least approximately rectangular;
Fig. 6 is a plan view of an assembly of two tubular piles joined together by the beaten sheet piles shown in Figs. 1 and 5;
Fig. 7 is an enlarged view of the interlocking locks of the arrangement of Fig. 6;
8 is a plan view of a third modification of the inventive Anschweissspundbohle with a straight Larssen hook;
9 is a plan view of a fourth modification of the inventive Anschweissspundbohle with a cranked Larssen hook;
Fig. 10 is a plan view of an assembly of two tubular piles joined together by the beaten sheet piles shown in Figs. 8 and 9; Fig. 11 is an enlarged view of the interlocking locks in Fig. 10; and
Fig. 12 is a plan view of a fifth modification of the inventive Anschweissspundbohle in which the welding end is rounded.
FIG. 1 shows a top view of a first exemplary embodiment of a pick-up sheet pile 10 according to the invention. The Anschweissspundbohle 10 has a uniform over its entire length considered cross-section. The Anschweissspundbohle 10 has a first leg 12 and a second leg 14. In cross section of the Anschweissspundbohle 10 seen the two legs 12 and 14 extend in two at least approximately parallel to each other lying planes and have at least approximately the same axial length.
The two legs 12 and 14 are connected by a common, straight central web 16, whose one end merges into the end of the first leg 12 and the other end into the end of the second leg 14. The central web 16 and the first leg 12 and the second leg 14 are each angled in their longitudinal directions viewed to each other, so that the Anschweissspundbohle 10 viewed in cross-section is substantially Z-shaped. In this case, the opening angle [alpha] between the first leg 12 and the central web 16 corresponds to the opening angle ss between the second leg 14 and the central web 16. The two opening angles [alpha] and ss lie in a range of 130 [deg.] To 145 [FIG. deg.].
At the transition 18 between the first leg 12 and the central web 16, a material thickening 20 is formed in the inner inner corner, in order to increase the rigidity of the Anschweissspundbohle 10 in this area. The material thickening 20 is rounded off and merges gently into the flat sides of the first leg 12 and of the central web 16, forming a radius R. In a corresponding manner, the transition 22 between the second leg 14 and the central web 16 is provided with a rounded material thickening 24.
At the free end of the first leg 12, which serves as a welding end, as will be explained later, a weld-on flange 26 is formed, which extends beyond the two flat sides of the first leg 12 addition. The welding flange 26 is in this case formed at least approximately centrally on the first leg 12 and extends in cross section of the Anschweissspundbohle 10 viewed at least approximately at right angles to the longitudinal direction of the first leg 12. Furthermore, the welding flange 26 on its side facing away from the first leg 12 flange 28 over its entire length Viewed in cross-section concave, in particular to facilitate the welding of the welding flange 26 on curved or uneven surfaces.
At the free end of the second leg 14, a lock 30 is provided, which is formed in the illustrated embodiment in the form of a header 32. The head strip 32 has an oval cross section, wherein the main axis a of the
Ovals extends at least approximately at right angles to the longitudinal axis of the second leg 14. The width b of the oval in the direction of the main axis a considered corresponds to the zweibis three times the thickness d of the second leg 14. The thickness c of the oval viewed transversely to the main axis a corresponds at its thickest point at least approximately the 0.5 to 0.8 fold width b of the oval. The head strip 32 is so rounded and designed that it can be used as a lock for a conventional PZ-sheet pile (ball-and-socket sheet pile).
The Anschweissspundbohle 10 shown in Fig. 1 is welded in use with its welding flange 26, for example, to a support member, such as a double-T support, a tubular pile or the like. Subsequently, the lock of a conventional PZ sheet pile or other sheet pile wall component, such as a provided on another support member welding element, are mounted.
It is particularly advantageous if the Anschweissspundbohle 10 shown in Fig. 1 is directly combined with the modification shown in Fig. 2 10a of Anschweissspundbohle 10.
The application 10a shown in Fig. 2 has substantially the same cross-sectional shape as the Anschweissspundbohle 10 shown in Fig. 1, so that the like components of the modification 10a are designated by the same reference numerals. The only difference is the shape of the lock 30, which is formed in the present case as a C-shaped claw bar 40. The claw strip 40 has two mirror-symmetrically with respect to the second leg 14 extending hook strips 42 and 44. The two hook strips 42 and 44 extend from the end of the second leg 14 arcuately and enclose a cross-sectionally oval lock chamber 46. The ends of the hook strips 42 and 44 extend towards each other, however, are spaced from each other so that a lock mouth 48 is maintained.
The claw strip 40 is in this case designed and dimensioned so that it can accommodate the header of a conventional PZ sheet pile.
As already explained, the modification 10a shown in FIG. 2 is particularly preferably used with the tacking sheet pile 10 shown in FIG. 1, as will be explained below with reference to FIG.
Fig. 3 shows in plan view a portion of an arrangement 50 of a plurality of sheet piling components.
The arrangement 50 is formed from a multiplicity of tube piles 52 as carrier elements or sheet pile wall components which are arranged at a uniform spacing from one another into the substrate. In Fig. 3, two of these pipe piles 52 are shown. Between each two adjacent tube posts 52, a sheet pile wall section 54 is provided. In the arrangement 50 shown in Fig. 3, this sheet pile wall portion 54 is formed by the beaten sheet piles 10 and 10a shown in Figs. Each Anschweissspundbohle 10 or 10a is this festgeschweisst on the outer surface of the respective tubular pile 52 with its welding flange 26, wherein the length of Anschweissspundbohle 10 and 10a is adapted to the length of the respective tubular pile 52 and this at least approximately corresponds.
The head strip 32 of the Anschweissspundbohle 10 is mounted in the claw strip 40 of the Anschweissspundbohle 10 a. At the side of each tubular pile 52 facing away from the respective anchor sheet pile 10 or 10a, a further welded sheet pile 10 or 10a is welded (shown by dashed lines), which is coupled with other anchor sheet piles or also with other PZ sheet piles or welding elements.
The inter-engaging header 32 and claw bar 40 are sized and shaped so that the two locks are in a range of about + - 10 [deg.] To + - 20 [deg.] About the neutral position N, in which the two Leg 14 of the two Anschweissspundbohlen 10 and 10a extend at least approximately in a common plane, pivotally, as shown in an enlarged view of the lock assembly in Fig. 4. By the pivoting of the lock assembly shown in Fig. 4, the necessary for the ramming of the pipe piles 52 mobility of the entire assembly 50 is ensured so that lock fractures can be avoided.
Furthermore, the lock assembly shown in FIGS. 3 and 4 of head strip 32 and claw strip 40 is dimensioned so that it is extremely resistant to tensile loads in particular. The tensile strength of this lock assembly is so high that when a ramming of the pipe piles 52, in which at least one of the pipe piles 52 deformed or displaced so far that normally a lock break could occur, not the lock assembly of header 32 and claw bar 40 breaks, but the intermeshing beaten sheet piles 10 and 10a are elongated so that the bungboards 10 and 10a are no longer Z-shaped in the extreme case, but the legs 12 and 14 extend at least approximately in a common plane, the beaten sheet piles 10 and 10a So they have been deformed into flat planks.
In other words, the Z-shape of the Anschweissspundbohlen 10 and 10 a allows a length of the sheet pile section 54 of the assembly 50, so that no breakage occurs even with extreme deformations of the pipe piles 52 and in this way the function of the arrangement 50 as a sheet pile wall or as combi Sheet pile is not impaired.
The shape of the Anchweissspundbohle 10b substantially corresponds to the shape of the Anschweissspundbohle 10. The Anschweissspundbohle 10b differs only in the shape of the lock 30, which in the form of a claw strip 60 is formed with mirror-symmetrically extending hook strips 62.
However, each hook strip 62 is in this case not designed arcuate, as in the first modification 10b. Rather, each hook strip 62 has an at least approximately at right angles from the free end of the second leg 14 projecting short connecting portion 64, to which an at least approximately parallel transition portion 66 connects, the free end merges into a right angle extending hook portion 68. The length of the hook portions 68 is chosen so that a lock mouth 70 is maintained. Due to the shape of the two hook strips 62, the claw strip 60 has an at least approximately square or rectangular lock chamber 72.
In the arrangement 50 shown in Fig. 6, the sheet pile wall portion 54 is formed by the tacking sheet pile 10b shown in Fig. 5 and the tacking sheet pile 10 shown in Fig. 1. Again, the Anschweissspundbohlen 10 and 10 b respectively welded to one of the two pipe piles 52 and are on the header 32 and the claw bar 60 into engagement. As shown in FIG. 7, in which the lock assembly of header 32 and claw bar 60 is shown enlarged, the use of the checker bar 10b also provides the advantage that the engaged header 32 and jaw bar 60 provide pivotal movement in a range of + - 10 [FIG. deg.] to + - 20 deg. from the neutral position N.
In addition, the rectangular or square shape of the claw bar 60 additionally allows a displacement of the head strip 32 within the claw bar 60 in the axial direction of the two Anschweissspundbohlen 10 and 10b (viewed in cross section of Anschweissspundbohlen), so that even extremely deformed tubular piles 52 are coupled together can, which are considered bent over the length of several times. Further, the latch assembly of header 32 and claw bar 60 is designed and dimensioned to withstand such high tensile loads that the beaten sheet piles 10 and 10b are already elongated with reference to FIG. 3 before breakage occurs.
8 and 9 show a third and a fourth modification 10c and 10d of the Anschweissspundbohle shown in Fig. 1. Again, the two Anschweissspundbohlen 10c and 10d compared to the Anschweissspundbohle 10 only in the form of the castle 30. While the Anschweissspundbohle 10 c is provided with a conventional straight Larssen hook 80, the Anschweissspundbohle 10 d a cranked relative to the second leg 14 extending Larssen hook 82. As will be readily apparent, these two beaten sheet piles 10c and 10d are also suitable for constructing an assembly 50 in which the sheet pile wall portion 54 is formed by the beaten sheet piles 10c and 10d disposed in the space between the two pipe piles 52 (see FIG. 10).
The Larssen hook 82 is designed to be cranked on the Anchweissspundbohle 10d that extend in mutually engaging Larssen hooks 80 and 82, the legs 14 of the Anschweissspundbohlen 10c and 10d at least approximately in a common plane. As further shown in Fig. 11, in which the lock assembly is shown enlarged, the Larssen hooks 80 and 82 are also sized and shaped so that a pivot angle from the neutral position N in a range of + - 10 [deg.] To + - 20 deg.
Fig. 12 shows in plan view a further modification 10ee of the Anschweissspundbohle 10. In this Anschweissspundbohle 10e 26 instead of the Anschweissflansches serving as the welding end free end of the first leg 12 a rounding 90 is formed, on which the Anschweissspundbohle 10e, for example to be welded to a pipe post. The rounding 90 facilitates the formation of the weld seams.
The Anschweissspundbohle 10e shown in Fig. 12 may also be provided with other lock shapes instead of the head strip 32 shown, so with the claw bar 40, the claw bar 60 or one of the two Larssen hooks 80 and 82nd
LIST OF REFERENCE NUMBERS
10, 10a to 1 Oe beaten sheet piles
12 first leg
14 second leg
16 middle bar [alpha] opening angle ss opening angle
20 material thickening
24 material thickening
26 Weld-on flange
28 flange side
32 Header a Main axis b Width
C thickness of the oval d material thickness of the second leg
40 claw bar
42 Hook rail
44 Hook rail
46 Castle Chamber
52 tubular pile
54 sheet pile section N neutral position
60 claw bar
62 hook strips
64 connecting section 66 transition section
68 hook section
70 lock mouth
72 Castle Chamber
80 straight running L 82 cranked running
90 rounding off