EP3580402A1

EP3580402A1 - Support of segmented structural design

Info

Publication number: EP3580402A1
Application number: EP18705857.3A
Authority: EP
Inventors: Markus Golder
Original assignee: Stahl CraneSystems GmbH
Current assignee: Stahl CraneSystems GmbH
Priority date: 2017-02-07
Filing date: 2018-02-07
Publication date: 2019-12-18
Anticipated expiration: 2038-02-07
Also published as: CA3052369A1; CL2019002216A1; ES2953627T3; ZA201904804B; EA201991825A1; WO2018146152A1; JP2020508947A; SG11201906860YA; KR102431900B1; EA038897B1; PL3580402T3; KR20190117595A; US20190352143A1; CN110291264B; EP3580402C0; DE102017102372B3; CN110291264A; MX2019009180A; US11078053B2; EP3580402B1

Abstract

The support (10) according to the invention has at least one row (13) of segments (15) which are arranged on one another, wherein the row (13) preferably extends from one end (21a) of the support (10) to the opposite end (21b) of the support (10). In a preferred embodiment, the row (13) has extending therethrough at least one tensioning element (14) which can also be referred to as a tie rod and which is anchored at the ends (25a, b) of the row (13) and pretensioned with respect to the row (13) in order to hold the segments (15) of the row (13) together. Here, the adjacent segments (15) are braced with respect to one another at their end sides (24) by means of the tensioning element(s) (14), wherein one or more than one, if any, element, such as a metal sheet, for example, can be arranged between the end sides (24). The connection of adjacent segments (15) of the row (13) to one another by virtue of the pretensioning of the tensioning element(s) (14) of the row (13) with respect to the row (13) is preferably such that further connecting means for connecting the adjacent segments (15) of the row (13) are not required. Therefore, there is preferably no integrally bonded connection, such as, for instance, a welded connection, and/or a screw connection between two adjacent segments (15) of a row (13) for connecting the adjacent segments (15) to one another that would be loaded in tension along the longitudinal extent of the row (13) during the operational use of the support (10) in a mounted device (33, 34). The support (10) can be provided at a use location in that the individual segments (15) are transported to the use location and only there arranged to form the row (13) and braced by means of the tensioning element (14).

Description

Beams in segmental construction

The invention relates to a carrier, a device with a carrier and a method for providing the carrier at a place of use.

Carriers as are used for example as bridge girders for bridge cranes are typically welded to ih ^¬ rem production site and then, depending on the big ^¬ SSE have reacted with a heavy transport to the ^¬ to. The organization of such a transport is expensive. The cost of such transportation can be significant.

The object of the present invention is to provide an improved concept for a carrier:

This object is achieved with a carrier according to claim 1, a device with a carrier according to the invention according to claim 12 and a method for providing the carrier according to claim 14:

The carrier according to the invention may be, for example, a carrier for a crane, for example a bridge crane, gantry crane or half gantry crane. The carrier may for example be a bridge beam of a bridge crane, which spans the working area of the Brückenträ ^¬ gers. Alternatively, the carrier may be, for example, a carrier for a bridge or for a scaffold. The carrier has a row of at least two consecutively arranged segments. The row may, for example, three or more successively arranged segments aufwei ^¬ sen. The segments are preferably arranged one behind the other in the longitudinal extension direction of the carrier. The segments in the row are braced against each other by means of a clamping element extending in the carrier. The clamping element is anchored to the opposite ends of the row of segments in order to brace the ^¬ series of segments gegeneinan.

The carrier can be transported with little effort in parts to the place of use, because it is made up of individual segments. On a heavy transport can be waived. The items of the carrier may be transported more easily than the composite carrier itself to hard-to-reach places such as mountain stations or ski stations.

The tensioning element particularly preferably extends through the segments of the row. The tensioning element is preferably ^¬ at least as long as two segments. Preferably, it ^¬ the clamping element extends at least at one end of the row via the series of segments addition. Especially before ^¬ Trains t the clamping member extends at both ends by the number of segments exceeds the number of segments. The clamping element is preferably anchored at its gegenüberlie ^¬ ing ends at the extreme ends of the outermost segments of the series. The tension member is preferably anchored at its opposite ends outside the row by the segments extending along the row direction. For example, the tensioning element is attached to its anchored opposite ends outside a series of equal length segments.

The clamping element can also be referred to as a tendon or as a tie rod. In the clamping element un ^¬ ter bias may at ^¬ game as a tension rod, strap, tensioning rope, Spannka ^¬ bel -wire or -strand, such as prestressing steel, are set.

The carrier may have two or more rows of segments. Two rows can run side by side or one above the other. Two rows can in particular run parallel to ^¬ each other. A series of segments extending in front ^¬ preferably from one end of the carrier to the gegenüberlie ^¬ constricting the end of the carrier. A clamping element for clamping the segments of the row against each other preferably extends from one end of the carrier to the gegenüberlie ^¬ ing end of the carrier. When the row extends from one end of the carrier to the other end of the carrier, the tie rod correspondingly extends from one end of the carrier to the opposite end of the carrier. Alternatively, the carrier may, for example, have two or more rows arranged one behind the other in the longitudinal direction of the carrier.

In the carrier of the series may be, for clamping the segments against each other extend another Spannele ^¬ element at least. For example, two or more tension members may extend from one end to the other end through the row of segments. The clamping elements preferably run parallel to one another. The further tensioning element can, for example, along the tensioning element at ver ^¬ tikal same height by the series of segments erstre- CKEN. Tensile forces acting along the row due to load on the wearer are absorbed by the one or more tension members of the row.

The force for pushing the series gegenei ^¬ Nander segments is preferably applied exclusively by the one or more clamping elements. Screw connections on the adjacent end faces of the adjacent segments, by means of which the adjacent segments would be pressed together in the longitudinal direction of the row, are not necessary and preferably not present.

Preferably, there are no fabric closures, such as welds, between two adjacent segments of a row for interconnecting the adjacent segments which would be loaded during operation of the wearer in a mounted device.

Between the row and the tensioning element preferably does not include joints between Seg ^¬ elements of the series and the clamping element are present between the anchoring points at the opposite ends of the row, via which by form-locking, material fit and / or frictional engagement of segments of the row on the tensioning element forces in rows ^¬ direction would transfer. The row of segments is preferably connected at its ends to the one or more tensioning elements for the series in the longitudinal direction of the clamping elements.

The carrier can be, for example, at the site of the device for which the carrier is intended, especially just build. The connection of the segments of the row with each other preferably takes place only by bracing the segments against each other by means of one or more extending through the series of segments, anchored at the ends of the series clamping elements. On connections with ^¬ screws between adjacent segments or

Welded connections between adjacent segments for connection of the adjacent segments, which would be loaded on train, can be omitted as described.

Adjacent tensioned against one another at their end faces segments of the row may touch each other directly with their end faces or between the adjacent segments can be an element or a stack of elements, its play, one or more stacked sheets in the row direction, arranged at ^¬. Between two arranged in the series neigh ^¬ barter segments elements are preferably clamped between the adjacent segments of the series due to the force that compresses the adjacent segments due to the bias of the tie rod. An element may be sandwiched between a pair of adjacent elements or more than one pair of adjacent segments. The pairs between which the element is clamped may belong to different series of segments. Preferably, except for the clamping connection of the element between one or more than one pair of adjacent segments of the same or different rows, no additional compound is present which prevents the member from a loading ^¬ movement of the segments between which the element is clamped to perform relatively.

When a maximum load is placed firmly ^¬ for the carrier, the segments are preferably such counter- biased each other that even with a load of the carrier, in particular transversely, for example, perpendicular to the carrier longitudinal axis, with a load corresponding to the maxi ^¬ scale carrying capacity no gaps between the segments auftun. Consequently, there is no gap between adjacent segments.

The segments preferably extend with their longest dimension along the longitudinal row extension. The respective dimension (length) of the segments along the longitudinal extent of the row is correspondingly preferably greater than the respective width and / or the respective height of the segments (transverse to the longitudinal extent). The length of the segments is preferably at most 1.2 meters. This allows the segments to be transported on Europool pallets.

The series is preferably constructed of segments of equal length. When the series of a carrier end for sufficient against ^¬ opposite support end that the Rei ^¬ he segments are preferably up to a maximum of one or two or three segments of equal length for the length adjustment of the carrier. If one or two or three segments with different length are present, the segment different length can be arranged in play ^¬ at one end of the series, or the two segments of differing length, for example at each end.

If the carriers according to the invention are constructed essentially of segments of equal length, the production costs for the carrier and the costs for the provision of the segments of the carrier can be particularly low.

The segments are preferably made of steel, while For example, mild steel, or aluminum.

The segments preferably each have a bottom, a lid and two, preferably in the row direction extending, arranged between the bottom and lid side ^¬ walls, cover, bottom and side walls enclose a space through which the or the clamping elements of the series can extend , Segments of the series can be constructed, for example, square or right ^¬ corner tubes, for example of box profiles. Segments may otherwise be made in ^¬ example, each of a U-profile, which extends along the carrier, wherein the space partially surrounded by the U-shaped space is completed upwards or downwards by a flat profile. Lids and / or floors may be connected to the side walls, for example, by welding or screw connections.

The clamping element can be anchored at the ends of the row in ^¬ example positive and / or frictional engagement to carry the force due to the bias on the row to ^¬ . On the clamping element is a Ankerele ^¬ ment of the tension member is preferably attached to an end of the row to which the clamping element can transmit the force due to the Vorspan ^¬ voltage on the row segments in order to compress the segments of the series. Preferably, an anchor element is arranged in each case one end of the row on the clamping element. By means of the anchor members at one or both ends of the series of segments, the force at play, via a ^¬ or respectively a form closure are transferred to the row. The anchor member at one end may be supported at an end portion of the outer segment of the row at the end due to the bias of the tension member. Alternatively, the tensioning element can For example, on an element or a stack of elements that are clamped between the end portion and the anchor element support. The tensioning element can be supported with at least one anchor element within the outer segment. Preferably, however, the clamping element is anchored outside the outer segment. Preferably, the clamping element is supported outside the row of segments. The row segments is preferably arranged between the corresponding From ^¬ support points. The anchoring element can be supported at the end in ^¬ example, on the front side of the outer segment or the anchor element is supported on a clamped between the anchor element and the end face element or a clamped stack of elements. The anchor element for the opposite end of the row can be supported accordingly as described above. Particularly preferably, the anchor elements arranged at the two ends are supported on a respective element or egg ^¬ nem stack of elements, which are each clamped between the respective end faces and the anchor elements.

The clamping element may be constructed of at least two Spannele ^¬ ment segments, which are secured between the ends of the clamping element to each other. The clamping element ^¬ egmente extend along the Längserstreckungsrich- processing of the clamping element. The length of the clamping element segments is preferably at least ten times greater than their extension, for example diameter, transversely thereto. The clamping element is more preferably built up to a maximum of one or two clamping element segments of equal length tension member ^¬ egmenten. If present, the or the clamping element segments of differing length can serve the length compensation. Alternatively, the clamping element segments of the clamping ^¬

'S- elements are the same length. In this way, the same clamping ^¬ element ^segments can be used for carriers of different lengths, which makes the production and availability of the clamping element segments cost. For connecting two clamping element segments, a separate from the one and / or the other clamping element segment connecting piece may be arranged between the clamping element segments, wherein the connecting piece may carry, for example, threads at its ends, which cooperate with corresponding threads of the clamping element segments to connect the clamping element segments together.

The carrier may be a box girder. However, the support is particularly preferably a truss support. Truss may have ge ^¬ genüber wind loads, a low weight and a low susceptibility. Due to the segmental design of the carrier according to the invention and the attachment of the segments of the row together by means of one or more Spannele ^¬ elements of the truss can be mounted with relatively little effort.

The truss according to the invention comprises at least one row segments which are clamped with a clamping element against ^¬ today. Preferably, at least one sol ^¬ che series segments in the lower flange of the truss girder

and / or at least one such series of segments in the upper flange of the truss girder present. For example, two parallel rows of segments and / or in the upper chord two parallel rows of segments are each arranged next to one another in ^¬ Un ^¬ tergurt. For example, two tensioning elements per row of segments may extend through the row in the lower belt and / or in the upper belt. Between the segmented top flange and the segmented bottom flange of the truss girder Kgs ^¬ NEN inclined to the horizontal and vertical sections (struts) and vertically extending portions of truss elements (posts) may be disposed of truss elements. However, the truss preferably does not have sections of truss elements that extend vertically from the lower chord to the upper chord. In one embodiment, however, vertically extending truss elements, eg sheets, may be arranged, for example, in a length adjustment section of the carrier for adapting the length of the carrier. Outside the longitudinal fitting section, however, there are preferably no vertical truss elements, eg vertically arranged metal sheets. The struts and, if present, preferably also the posts, are preferably sheet metal parts. The struts and / or posts have end portions, which preferably extend in vertical Rich ^¬ tion.

The end portions of angeord ^¬ Neten at the ends of the series of truss elements can in each case between the outer segment of the series at the end at which the respective compartment ^¬ network element is arranged, and be held a strained against the outer Seg ^¬ management part. Preferably, the end portions of the outer truss members are each zwi ^¬ tween the outer segment and the outer part clamped by the bracing of the series segments by means of the clamping element. End sections of truss elements arranged between the outer truss elements are alternatively or additionally preferably held between adjacent segments. Particular preference is given to end sections of technical elements arranged between the outer framework elements. each clamping elements by clamping the series segments by means of the clamping element between adjacent Seg ^¬ ments. Particularly preferably end portions of rods arranged between the outer rods are held exclusively by the clamping between the segments. Accordingly, by the clamping on the Endab ^¬ cut preferably a force applied so that the end portions are prevented from moving transversely, for example senk ^¬ right, to the adjacent segments by the clamping, even if the device in which the Trä ^¬ ger is used, is charged with the maximum load corresponding to their design.

The device according to the invention with at least one carrier according to the invention may, for example, be a crane, in particular a bridge crane, a gantry crane or a half gantry crane. Alternatively, the carrier can be used, for example, as a carrier of a scaffold or a bridge. The device may be a sign bridge for securing traffic signs or trailblazing signage over a lane of a road or highway. The segments may for example be so short that it requires a series arrangement of at least two or at least three segments of the row of the carrier according to the invention, so that the successively arranged segments together span a roadway of the road or highway. The carrier used in the device preferably extends horizontally. The carrier preferably extends in the longitudinal direction of extension of the device (longitudinal member). Alternatively, the carrier according to the invention may be arranged vertically, for example. In the device according to the invention with at least one carrier according to the invention, it may, for example to act as a stacker crane or a tower crane, each of which may have a mast with at least one vertically arranged ^¬ th carrier according to the invention.

For arrangement of the carrier in the device, the device may for example comprise at least one connection element. The connecting ^element may extend transversely, in particular perpendicularly, to the longitudinal extension of the row of segments and be arranged at one end of the carrier. In a preferred embodiment, two connection elements may be present, which are preferably arranged at the opposite ends of the carrier, we ^¬ nigstens a number of segments which preferably ranges at a closing ^element to the other connector element. In a transversely, in particular vertically, to the Längserstre ^¬ ckung the series extending segments connecting element may be, for example, a head carrier. Such head support are arranged for example at the ends of a bridge girder of a bridge crane. The Spannele ^¬ element is preferably at least anchored at one end of the row of segments at a portion of being arrange ^¬ th at the end of the connection element and biased to the segments of the series to each other and to brace against the Anschlus ^¬ selement by the tension member. If the device, for example having a head support which is disposed at one end of the carrier, the clamping ^¬ element may be anchored, for example, in the head support to the head support by the bracing of the head carrier against the segments of the range of the carrier by means of Spannele ^¬ ments to fix. When the one or more connection elements are pressed against one or against one end of the row of segments by means of the tensioning element, the connection element (s) are attached to the carrier in a simple manner. Untitled. Between the connection element and the closure element against the at ^¬ by the tension member stretched Benach ^¬ disclosed outer segment of the row, one or more white ^¬ tere elements or even no further element can be clamped. For example, an end portion of a Fachwer ^¬ kelement be clamped between the connection element and the outer segment, when the carrier is a Fachwerkträ ^¬ ger. Alternatively, or in addition to the fastening by means of clamping of the support opposite the connection element with the clamping element, the support may be a screw connection to the connecting element attached to the respective end, for example, to egg ^¬ nem end of the beam or at both ends of the support with ^¬ means of. Regardless of the type of fastening of the support to the connecting element, an inventive truss may for example be attached to the Anschlus ^¬ selementen at the ends of the bottom chord and / or of the upper belt.

The organization and the cost of one

Heavy or special transport omitted if the carrier is provided on site by providing the segments on individually ^¬ A sentence location and arranged, the segments only at the site in the series and are braced against one another.

To provide the carrier, the segments are arranged in one or more rows. This can be done with the aid of positioning auxiliary elements, the adjacent segments in a desired position transversely, for example, perpendicular to the longitudinal direction of the series of segments and possibly in addition

Prefix longitudinal direction of the row. However, the positioning auxiliary elements are preferably not suitable to ensure the connection of two adjacent elements, when the carrier is loaded with a load corresponding to the maximum load capacity of the carrier or when the front ^¬ direction, which contains the carrier, with a load for which the device is designed maximum. The Positionierhilfselemente can only serve the positioning ^¬ tion and arrangement of the segments in the series. By biasing the one or more clamping elements for the series, the segments of the row are then ^clamped against each other. For this purpose, forces are exerted in the direction of the longitudinal extension of the clamping element on the row of segments by means of the clamping element of the En ^¬ the row forth to press the segments against each other. The bias of the tensioning element (s) of the series is preferably so high that, even when the carrier is loaded with the maximum load for which the carrier is designed, there is no load on a connection of a positioning auxiliary to a segment of the train in the direction of the longitudinal extent of or the clamping elements occurs.

The bias of the one or more tensioning elements of a row is preferably chosen so high that the segments of the row - even under load of the carrier with the maximum load for which the carrier is designed - exclusively by the bracing of the segments by means of one or more clamping elements against at least one adjacent segment is prevented from moving in the longitudinal direction of the row as well as transversely, for example perpendicularly, relative to the adjacent segment of the row. ^{Wider ¬} re connecting means between two adjacent segments are preferably not present. Preferably, no screw connections are provided on adjacent ends of two adjacent segments for connecting the adjacent segments. handen. Accordingly, as an alternative or in addition, preferably no tensile welds in the longitudinal direction of the tensioning element between two adjacent segments for connecting the adjacent segments are present.

When the segments of a series of producing a frictional connection by means of the clamping element are pressed against each, this may coefficients with small friction coeffi ^¬ may not be sufficient to prevent movement of the adjacent segments relative to one another transversely - for example, perpendicularly - to the longitudinal extension of the adjacent segments, particularly in the vertical Direction, to prevent. Therefore, in one embodiment, a form-locking element, for example made of steel, in particular mild steel, or Al ^¬ minium ^{¬ be} arranged at adjacent ends of adjacent segments, the arrangement is directed ^¬ to produce a positive connection between the adjacent segments, the movement of the adjacent Segments relative to each other, transverse, for example, perpendicular, prevents the longitudinal direction of the segments. The interlocking element can be inserted, for example, at the adjacent ends of the adjacent segments in the adjacent segments or the adjacent ends of the segments are inserted, for example, in the Formschlussele ^¬ ment.

In an exemplary embodiment, the first Positionierhilfselemente serve to facilitate to ^¬ sammenbaus of the carrier and in the assembled carrier and interlocking elements relative to each other against slipping of adjacent segments despite bracing means of the or the clamping elements. Further advantageous embodiments of the inventive ^¬ carrier, the device according to the invention and the method according to the invention are the subject of the dependent claims and the figures of the drawing and the following description:

They show schematically:

FIG. 1 shows a longitudinal section through an exemplary embodiment of a carrier according to the invention in a framework of a factory,

FIG. 2 shows a representation of a cross section through the exemplary embodiment according to FIG. 1,

3 shows an embodiment of a crane bridge ei ^¬ nes bridge crane with a carrier according to the invention in timber frame construction as a bridge girder,

FIG. 4 shows a highly schematic perspective view of a bridge crane with a carrier according to the invention,

FIG. 5 shows a longitudinal section through a further exemplary embodiment of a carrier according to the invention with a possibility for length adaptation,

FIG. 6 shows a longitudinal section through an exemplary embodiment of a carrier according to the invention with a further possibility for length adaptation,

FIG. 7 shows a further exemplary embodiment of a inventive carrier in a longitudinal sectional view,

Figure 8 - an embodiment of a Formschlus ^¬ selements in a longitudinal sectional view.

Figure 1 is a longitudinal section through an embodiment of an inventive carrier 10. ^¬ Fi gur 2 is an illustration of the cross section of the carrier 10 of Figure 1 taken along section line AA (view in the direction of the arrow P in Figure 1). The support 10 according to the invention can be a truss girder 10 as shown in FIG. 1 and FIG. 2, the girder 10, according to the embodiment of FIGS. 1 and 2, preferably a lower girder 11 and / or an upper girder 12 in segmented construction with one in a row 13 arranged, by means of at least one clamping element 14 against each other braced segments 15 in the row 13. The carrier 10 in the framework construction can for example have a horizontal top ^¬ belt 12 and a horizontal lower belt. 11 According to the outer shape of the truss carrier 10 shown in FIG. 1 and FIG. 2, this is a trapezoidal carrier. However, the carrier 10 according to the invention may alternatively have a different framework shape. As an alternative to the truss construction, the carrier 10 may be formed, for example, as a box girder (not shown) with a series of box-shaped segments, the tops of which may form the top girder of the girder and the bottoms of the bottom girder of the girder.

The illustrated in Figure 1 and Figure 2 erfindungsge ^¬ Permitted truss 10 has a lower flange 11 and a top flange 12, each having a row 13 segments 15 on ^¬ have. Alternatively, in the lower chord 11 and / or in the upper chord belt 12 run more than one row 13 next to each other, in this case particularly preferably two rows 13 in the lower flange 11 and / or two rows 13 in the upper flange 12 are IN ANY ^¬ . A further row 13 preferably extends in the lower chord 11 and / or in the upper chord 12 along the at least one other row 13 of the same belt 11, 12 and particularly preferably at the same vertical height. The row 13 or row 13 of the lower flange 11 preferably range and are as ^¬ provided by the one end 16a of the lower flange 11 to the longitudinally opposite end 16b of the lower chord. The row 13 or row 13 of the upper flange 12 preferably range from one end 17a of the upper belt 12 to longitudinally ge ^¬ genüberliegenden end 17b of the upper belt 12th

The carrier 10 shown has truss elements 18 with obliquely to the horizontal H and the vertical V between the lower flange 11 and upper flange 12 extending truss ^¬ sections 19, which can also be referred to as struts. The illustrated truss 10 is without vertical bars, which can also be referred to as posts. The truss girder 10 may alternatively have additional posts. The truss elements 18 have Endab ^¬ sections 20, which extend, for example, in the vertical Rich ^¬ direction V.

The lying from one end 21a of the support 10 to the opposite end 21b of the carrier 10 ^¬ reaching row 13 Seg ^¬ elements 15 in the bottom flange 11 has in the illustrated embodiment, three consecutively arranged segments to 15 °. Between two adjacent segments 15, a stack 22 with two along the row 13 successively arranged end portions 20 of the truss elements 18 is clamped by the adjacent segments 15 against each other are pressed.

In the top flange 12 of the illustrated embodiment, the row 13 has two consecutively arranged segments 15, wherein between the adjacent segments 15 each have a stack 22 with two along the row 13 hinerei ^¬ nander arranged end portions 20 of the truss elements 18 is clamped by the adjacent segments 15th ge ^¬ against each other are pressed.

At the ends 16a, b of the lower belt 11, a respective end member 23 is arranged. At each end 16a, b is an end ^¬ section 20 of the outer bar member 18 is clamped between the end member 23 and the end face 24 of the outer segment 15 of the row 13 of the lower leg 11 by the end member 23 is pressed against the end face 24 of the outer segment.

A termination element 23 is at the ends 17a, b of the upper belt 12 is also arranged each ^¬ weils. At each end 17a, b is clamped between the end member 23 and the front ^¬ side 24 of the outer segment 15 of the row 13 of the upper chord 12, an end portion 20 of the outer rod member at the end by the end member 23 against the front ^¬ page 24 of the outer Segment 24 is pressed.

According to the invention, the clamping force for clamping the end portions by compressing the Abschlussele ^¬ elements 23 and the segments 15 of the series 13 via Wenig ^¬ least a prestressed tension member 14 is applied. In the illustrated embodiment according to Figure 1 and Figure 2, two clamping elements 14 extend parallel to ^¬ each other through the series segments 15 in the lower flange 11 and in the Top strap 12. In the illustration of Figure 1, a clamping element 14 is in each case hidden from the other, since the clamping ^¬ elements 14 of a row at the same vertical height. The parallel clamping elements 14 can be seen in the illustration in Figure 2 of a cross section through the embodiment. Instead of two clamping elements 14 for compressing the segments 15 of a row 13 may be present for at least one row 13 alternatively only one clamping element 14 or more than two clamping elements 14 which extend through the segments 15 of the row 13 and the segments 15 of the row 13 compress ,

The following explanation for a clamping element 14 applies to all in the carrier 10 arranged clamping elements 14 for the rows 13, unless otherwise stated: In the illustrated embodiment according to Figure 1 and 2, the clamping element 14 extends through the segments 15 via the En ^¬ the 25 a 13 row b out of 15 segments. The clamping element 14 may, for example, a biased rod, a rope, a tape, a wire or a strand aufwei ^¬ sen. In the illustrated embodiment, a rod 26 is made of prestressing steel under train. The clamping element 14 has opposite, arranged outside the row 13 of segments 15 anchor elements 27 a, b, which are attached to the set under train rod 26. The tensioning element 14 is anchored correspondingly at the ends R 25a, b of the row 13 which are opposite the row direction R outside the row 13 of segments 15 extending along the row direction R. In the exemplary embodiment, the rod 26 for Veran ^¬ tion a head 27a at one end of the rod 26 and at the opposite end of the rod 26 has an external thread with which a nut 27b is engaged. Alternatively, for example, at both ends of the clamping element 14th External threads are arranged, with each of which nuts 27 b are engaged at both ends.

In the illustrated embodiment, the prestressed tensioning element 14 is supported with the anchor elements 27a, b on the opposite arranged end elements 23 of the belt 11, 12 form-fitting manner in opposite Richtun ^¬ gene to by the bias in the rod 26 between the anchor elements 27a, b arranged Termination elements 23, the intermediate segments 15 of the row 13 and the end portions 20 to compress. At each end 25a, b of the row 13, the termination element 23 as ^¬ derum supports this against a stack of elements, in the illustrated embodiment of a stack of end portions 20, from which is located at the end face 24 of the outer segment 15 at the end 25a, b supported. Characterized adjacent segments are pressed against each other, the end portions 15 and 20 of the Fachwer ^¬ kelemente 18 are pinched between adjacent segments 15 or between a closure element 23 and an adjacent segment 15 °.

The long tensioning element 15 has a relatively soft force-displacement characteristic. Thereby, the connection of the segments 15 of the row 13 with each other by means of the one or more of the clamping elements 14 of the row 13 even under dynamic loads fatigue. This gives the wearer fatigue resistance even under dynamic loads. This also applies to Verbindun ^¬ gene produced by means of the one or more clamping elements 14 between the carrier 10 and connecting elements of a device according to the invention, as will be explained in the context of the description of the embodiment according to Figures 3 and 4. In addition, the prestressed tensioning element 14 also gives the connections a fatigue strength at high temperatures. changes in temperature.

The clamping element 14 is between the two force introduction points at the ends 25a, b of the row 13, in the embodiment between the support points of the two anchor elements 27a, b, not connected to the row 13 segments 15 ent ^¬ long biasing force. The chip ^¬ nelement 14 is supported between the two support points of the anchor elements 27a, b, in particular not at other Ab ^¬ support points from, to tensile forces in the biasing direction along the longitudinal extent of the clamping element 14 to transmis ^¬ conditions.

The pressing of two adjacent segments 15 of a row 13 against each other preferably takes place exclusively by the pressure force introduced into the row 13 by means of the clamping element or elements 14 of the row 13. A screw connection device at the adjacent ends 28a, b of the adjacent segments 15 for compressing the adjacent ends 28a, b of the segments 15 against each other, in particular the end faces 24 of the segments 15 against each other - with or without arranged between the end faces 24 elements - is preferably unavailable.

The bias of the clamping elements 14 in the lower chord 11 and / or in the upper chord 12 is preferably so high, so that it alone by the bias even at a load of the device in which the carrier 10 is used with a load for which the device maximum is designed, does not come to a Auftun of gaps between adjacent segments 15 of the row 13 in the lower flange 11 and / or in the upper flange 12. Between each two adjacent Seg ^¬ elements 15 of a row 13, in the exemplary embodiment par- particular of the row 13 in the bottom flange 11, for example, be ^¬ vorzugt no screw connection for connecting the adjacent segments 15 to one another at adjacent ends 28a, b of the segments 15 is provided, which screws compound of during operational use of the carrier 10 in a Vorrich ^¬ tung along the biasing force Clamping elements 14 of the series 13 would be charged to train. In addition, between two adjacent segments 15 of a row 13 is preferably any material bond connection, such as a welded connection, yet which connect the segments 15 to each other and would be charged along the biasing force of the tension elements 14 to train because it is preferably on the basis of Vorspan ^¬ voltage of the Clamping elements 14 of the row 13, even without a sol ^¬ che StoffSchlussverbindung would not come to a divergence of two adjacent segments 15, even under load of the device with a load for which the device is designed maximum.

The adjacent segments 15 are prevented from moving relative to each other transversely, in particular perpendicular, to the biasing force by the pressing of the adjacent segments 15 against each other by the bias of the clamping elements 14 of the row 13. Further connecting means between the adjacent segments 15 of the row 13, which would be belas ^¬ tet during use of the carrier 10 in the device during operation of the device transversely, in particular perpendicular to the biasing force due to the load on the device, are preferably not present.

The segments 15 may, for example made of steel, special into ^¬ mild steel, or aluminum. The segments 15 are in the exemplary embodiment box-shaped with a bottom 15 a, two side walls 15 b and a lid 15 c. Beispiels- example, segments 15, in particular those of the lower chord 11, each made of a U-profile 29, the enclosed space, as in the illustrated embodiment (Figure 2) is covered with a flat profile 30 upwards, the flat profile 30 the lid 15c forms. Alter ^¬ natively, the U-profile 29 may be arranged open at the bottom and be ^{abgeschlos ¬} down by means of the flat profile 30 sen, which forms the bottom 15a in this case. U-profile

29 and flat profile 30 may be welded or screwed together, for example. The flat profile 30, as in the illustrated embodiment (see Figure 2), projecting laterally beyond the U-profile 29. The flat profile 30, when the carrier 10 is inserted in a crane, can provide a running surface for the cat of the crane. Alternatively to the production of U-profile 29 and flat profile

30, a segment 15 may be 31 (rectangular tube) be ^¬ profile composed for example of a rectangle. In the illustrated embodiment, the segments 15 are constructed in the upper flange 12 of rectangular profiles 31.

In the illustrated embodiment, all Segmen ^¬ te 15 of the carrier 10 are the same length, for example, it is also possible that the segments 15 in the lower flange 11 have a uniform length, which differs from a ^{Einheitli ¬} chen length in the upper flange 12. Alternatively, for example, one or two segments 15 in the lower chord 11 may have a different length than the other segments 15 of the carrier 10 or the lower chord 11. Alternatively or additionally, for example, one or two segments 15 in the upper flange 12 have a different length. The one segment 15 or the two segments 15 of differing length in the lower flange 11 and / or in the upper flange 12 can, if present, be adapted to adapt the length of the carrier 10 to the flange. benheiten a device, in particular to the distance between the terminals of the device for the carrier 10, serve. At a segment 15 deviating length, a truss element 18 may be arranged with a different angle of the Fachwerkelementab ^{¬ section} 19 to the horizontal and vertical. The angle of the truss element section 19 of this truss element 18 can be adapted to use the truss element 18 with different lengths of segments 15 deviating length. Otherwise carriers 10 of different lengths can be provided by the appropriate choice of the number of segments 15 in the lower belt 11 or in the upper belt 12. If the segments 15 in the lower flange 11, in the upper flange 12 and / or in the entire carrier 10 are the same length or equal to one or two or three segments 15, the storage of the segments 15 and the mounting of the carrier 10 are particularly simple.

Each segment 15 is preferably no longer than 1.2 meters. The segments 15 are thus each preferably no longer than Europoolpaletten.

The framework elements 18 are preferably sheet metal parts, preferably sheet steel parts, in particular mild steel sheet ^¬ parts, or aluminum sheet metal parts. The sheet may be folded in the truss element portion 19 of the truss member Zvi ^¬'s top flange 18 bottom flange 12 and 11, as ersicht ^¬ Lich in Figure 2, in order to increase the rigidity of the Fachwerkele ^¬ management portion 19th The two end portions 20 of a sheet metal part are each pressed against at least one segment 15 in the upper flange 12 and at least one segment 15 in the lower belt 11 ^¬ . The end portions 20 of which is arranged between the externa ^¬ ßeren truss elements 18 truss elements 18 are clamped between adjacent segments 15 °. Of the End portion 20 may contact segment 15 or between end portion 20 and segment 15, against which end portion 20 is pressed, one or more further elements, eg an end portion 20, are arranged.

The clamping element 14 or the clamping elements 14 in the Un ^¬ tergurt 11 and / or in the top flange 12 may be made of at least two individual clamping element segments assembled (not shown). The clamping element segments extend in the assembled clamping element 14 along the longitudinal extent of the clamping element. For example, for connecting the clamp element segments together Zvi ^¬ rule adjacent clamping element segments disposed connecting pieces (not shown) are used, the clamping element segments are attached, for example by means of screw and / or clamping connection in the connecting piece. The clamping element segments can each have a maximum length of 1.2 meters.

At the adjacent ends 28a, b of adjacent segments 15 of a row 13 and / or at the ends 25a, b of the row 13 positioning auxiliary elements 32, for example made of steel, in particular mild steel, or aluminum, for positioning the segments 15 and / or for positioning the Truss elements 18 may be arranged. In the Ausführungsbei ^¬ play according to Figures 1 and 2 positioning ^{auxiliary elements} 32 at the adjacent ends 28 a, b of adjacent segments 15 and at the ends 25 a, b of the row 13 are arranged. Their use is further explained in the context of the following exemplary representation of a method for providing the carrier 10, for example the carrier 10 according to FIG. 1, at a place of use: The individual parts of the carrier 10, which, in the embodiment, at least the segments 15, which Fachwer ^¬ kelemente 18, the end elements 23 and the elements 14 and the Spannele ^¬ Positionierhilfselemente 32 are transported to the site in the field. The Abschlusselemen ^¬ te 23, the segments 15 of the lower chord 11 and the segments 15 of the upper chord 12 and the truss elements 18 are arranged one behind the other to the arrangement of Figure 1. For the positioning of two adjacent segments 15 in the row 13 relative to each other, in particular based on the relati ^¬ ve arrangement to one another transverse to the row direction R, and to position the end portions 20 of the truss elements 18 between adjacent segments 15, in particular based on the relative arrangement to each other transversely to the Row direction R, the positioning auxiliary elements 32 can be arranged at the ends of the segments 15. This is used in the example shown in Fi ^¬ gur 1 embodiment of a carrier 10 from an end portion of a segment 15 extending in the adjacent end portion of the adjacent segment 15 Posi ^¬ tionierhilfselemente 32 of the pre-fixing of the adjacent segments 15 and arranged in between the end portions 20 of the truss elements 18 in a desired Anord ^¬ voltage in the row 13. the Positionierhilfselemente 32 are adapted to move one in the row 13 to ^¬ parent segment 15, a truss member 18 and / or a closure element 23 relative to an adjacent element in the row direction R and / or transversely , For example, perpendicular to the row direction R to prevent.

For positioning the Positionierhilfselement 32 is to be clamped, for example, in adjacent segments 15 and by Zvi ^¬ rule, the segments 15 end portions 20 ge ^¬ inserted. This can be a movement of the adjacent segments 15th relative to each other transversely, for example, perpendicular to the Rei ^¬ henrichtung R already be prevented. The positioning auxiliary element 32 can be fastened to the segments 15 by means of fastening devices (not shown), wherein the fastening devices are arranged and arranged in such a way that the adjacent segments 15 prefixed to one another by means of the fastening ^devices are fixed in position in order to guide the segments 15 to clamp the clamping element 14. Alternatively or additionally, the positioning auxiliary elements 32 may comprise stop elements (not shown) which come into contact with the end faces of the segments 15 as stops, so that the positioning auxiliary elements 32 can not be pushed too far into the segments 15. With the Positionierhilfselementen 32, the segments 15 and truss elements 18 to prepare the bracing with the clamping element 14 in a simple manner can be accurately positioned and aligned ^¬ tet. The row 13 of positioned by means of positioning auxiliary elements 32 and aligned ^¬ th, pre-fixed segments 15 for the lower chord and / or for the upper chord can form from one row end 25a to the opposite row end 25b continuous edge. In the case of the end elements 23 of the exemplary embodiment illustrated in FIGS. 1 and 2, the portion of the end ^element 23 that extends through the end section 20 of the outer truss ^element 18 into the outer segment 15 forms a positioning auxiliary element 32. A connection between the segments 15 However, the Positionierhilfselemente 32 is used in an Ausführungsbei ^¬ play only the prefixing to facilitate handling of the segments 15 and elements of the rows 13 during assembly of the carrier 10. A connection between adjacent segments 15 by means of Positionierhilfsele 32 is preferably not suitable to the resulting in use of the carrier 10 in the device tensile forces on the lower flange

11 and to prevent a Auftun of gaps between adjacent segments 15. This causes ^{vorzugswei ¬} se exclusively the connection of the elements of the lower belt 11 by the compression of the elements of the lower belt 11 by means of the prestressed clamping elements fourteenth

The clamping elements 14 are arranged in the segments 15, so that the tension rods 26 extend through the series segments 15. Then, biased tension bars 26 with- the nuts 27b with the fixed bias voltage, so that the anchor members 27a, b, in the exporting ^¬ approximately example the head 27a at one end 25a of the row 13 and the nut 27b at the opposite end 25b of the series 13, supported against the end elements 23. The elements arranged between the anchor elements 27a, b are braced against each other. By loading the carrier 10 to a load during operation of the device in which the carrier 10 is inserted, can zusätzli ^¬ che compressive forces occur in the upper flange 12, while occur in the bottom flange 11 through the load pulling forces on the lower boom. The combined biasing force of the clamping elements 14 in the upper flange

12 thus may be less than the combined biasing force of the tension elements 14 in the lower flange 11. The mon ^¬ oriented carrier 10 can then be positioned at its place of use within the device.

The bias of the clamping elements 14 in the lower flange 11 is chosen so high, so that even with a load of the device in which the carrier 10 is used, with the highest load for which the device is designed between the adjacent segments 15 no column open up. In addition, the bias of the tension elements 14 in the lower flange 11 and / or in the top flange 12 is preferably chosen so high that the clamping force acting on the basis of the bias voltage between BE ^¬ adjacent segments 15 is so high that it when a load with a load for which the device is designed to be maximum, not to a Verrut ^¬ rule of the adjacent segments 15 of the row 13 relative to each other transversely, for example, perpendicular to the clamping force o to slipping a disposed between the adjacent segments 15 element, for example, an end portion 20, relative to the one or the other segment 15 transversely, for example vertically, comes to the clamping force. In particular, in cases where the friction coeffi ^¬ coefficient between the friction surfaces at a joint between adjacent segments is so low 15, that a sufficient clamping force can not be applied to prevent slippage, b at the adjacent ends 28a of the adjacent segments 15 preferably arranged a form ^¬ closing element, the arrangement is to ^¬ is directed to prevent slippage of the adjacent segments 15 relative to each other upwards and / or downwards and / or laterally by means of positive locking. In one embodiment, particularly in the Darge in FIGS ^¬ presented embodiments, the Positionierhilfselemente 32 can serve as interlocking elements.

Due to the bias of the clamping elements 14 of the lower belt 11, the carrier 10 arranged in the assembled device is preferably bent upward. In a bridge crane with the carrier 10 according to the invention as a bridge carrier, the carrier according to the invention can be bent upward, for example, if no lifting load loads the crane. Two adjacent segments 15 of a row 13 are front ^¬ preferably solely by the adjacent segments 15 in two directions exerted compressive forces, which are for the row 13 exerts ^¬ with ^¬ means of the or the clamping elements 14, held together. Along the pressure forces there is a positive connection. Transverse, for example perpendicular, to ^{¬ at} least one frictional engagement.

Due to the segmental design of the carrier 10 can be transported in parts to hard to reach installation sites, such as at a ski station and a mountain station and assembled there on site ^¬ who.

The carrier 10 can be, for example, a carrier 10 for a bridge or for a crane.

Figure 3 shows a longitudinal section through a crane bridge 33 with a the embodiment of Figures 1 and 2 substantially corresponding carrier 10 of the invention as a bridge girder 10. The crane bridge 33 is part of a Brü ^¬ ckenkran 34, wherein such exemplified and highly schematically in Figure 4 is. The illustrated bridge crane 34 is a single-girder bridge crane. The illustrated crane bridge 33 for the single-girder bridge crane has a carrier 10 according to the invention as a bridge girder 10. The bridge girder 10 is arranged between two head supports 35 made of steel or aluminum and attached thereto. In the case of a double-girder bridge crane, two bridge girders 10 according to the invention are arranged side by side between the head girders 35 and fastened thereto. The bridge girder 10 spans the working space A of the Bridge cranes 34. Wheels are angeord ^¬ net (not shown), with which the crane bridge 33 from bridge girder 10 and head carriers 35 on the crane tracks 36 can be moved to the head carriers 35. The cat 37 of the crane 34 may, for example, be held ^movably on the flat profile 30 of the lower belt 11.

About the two crane tracks 36 of the bridge girder 10 is externally supported against the ground. The example of the bridge crane 34 that at least two or at least three successively arranged in an inventive device 34 segments 15 of the series 13 is shown in the drawing, due to the tension of all the segments 15 of the series 13 by means of passing through the row 13 Spann ^¬ elements 14 against each other and if provided, on the basis of, for example by means of positive locking elements 32 herge ^¬ presented positive engagement between the adjacent segments 15 of the row 13, a space A between two external supports of the carrier 10 against the ground can span without between the two external supports a additional external support of the least two or at least three consecutively arranged segments 15, in particular of the adjacent ends 28a, b of the at least two or at least three segments 15, must be present or present against the ground. This is true for an inventive device 34 with a designed as Fachwerkträ ^¬ ger according to the invention the carrier 10 and a device with a carrier, for example as a box formed out ^¬ invention in segments 15 divided carrier alike. In the case of a bridge or gantry invention, for example, the successive arrangement of at least two or at least three segments 15 of the row 13 from one end of a bridge field to the other can be arranged. whose end of the bridge field enough. When, for example, we ^¬ nigstens three consecutively arranged segments 15, a middle segment 15 between the adjacent segments 15 is clamped due to the stress, and can on the basis of which and, if present, due to the shape ^¬ circuit between two adjacent segments 15 without external support of the adjacent ends 28a, b of the middle and one or both of the adjacent segments 15 are held against the ground above the spanned space.

In contrast to the embodiment shown in Figure 1, the clamping elements 14 of the lower chord 11 are anchored in the head ^¬ carriers 35, which are arranged at the ends 25a, b of the row 13 segments 15. The clamping elements 14 are supported with their anchor elements 27a, b, for example, with the head 27a and the nut 27b, which are arranged in the head carriers 35, respectively from the inside to the wall 38 of the head ^¬ carrier 35 or at one between the anchor element 27a, b and the wall 38 of the head carrier 35 arranged between ^¬ element 39 from. The head carriers 35 are thereby pressed against the ends 25 a, b of the row 13. In the exemplary embodiment, the head carriers 35 are supported on the end elements 23. Alternatively, the head support 35 can be supported for example on the end portions 20 of the outer truss elements 18, which are each clamped between a Kopfträ ^¬ ger 35 and the end face 24 of the adjacent outer segment 15. Otherwise, the head support 35 can be supported for example on the end faces 24 of the outer segments 15 of the row 13. The carrier 10 is fastened in the exemplary embodiment by means of the clamping elements 14 of the Un ^¬ tergurts 11 to the head carriers 35. This makes the installation of the crane bridge 33 particularly easy. The crane bridge 33 can be mounted analogously to the exemplary method shown above, wherein the clamping elements 14 of the Un ^¬ tergurts 11 are guided through the walls 38 of the head carrier 35.

The device may alternatively be, for example, a semi-portal crane (not shown). Such has only at one end of the carrier 10 according to the invention a, preferably by means of the clamping elements 14 mounted in the lower flange 11 head carrier 35 which is movable on a crane runway, which is arranged at the upper end of the working space of the crane.

In the embodiments shown in the figures, the lower chord 11 is longer than the upper chord 12. Alternatively, the lower chord 11 and the upper chord 12 may be the same length or the lower chord 11 may be shorter than the upper chord 12. Regardless, the truss 10 may be with its lower chord 11 and / or be attached with its top flange 12 to connecting elements 35, for example head carriers 35.

5 shows a longitudinal section through an embodiment of an inventive carrier 10. We ^¬ sentlichen the Be ^¬ scription 15 of the series is valid for this embodiment in connection with figure 1. Instead of a second truss member 18 between the respective outermost Seg ^¬ element 13 in the bottom flange 11 and in the upper chord 12 and the next adjacent segment 15 but is secured to the respective outermost truss member 18 and the adjacent truss member 18 at least one turnbuckle 40 buildin ^¬ Untitled whose length for adjusting the angle of the shroud wires Spanners 40 is adjusted to the horizontal and vertical. The lengths of the outermost segments 15 of the rows 13 in the lower flange 11 and in the upper chord 12 may thus be attached ^¬ fits for providing ^¬ position of a carrier 10 having a required length. The arranged between the outermost segments 15 of the rows 13 segments 15 of the rows 13 of at least three segments 15 may have a unit length on ^¬ .

6 shows a longitudinal section through a number Seg ^¬ elements 15 in the lower flange 11 of the carrier 10 and a number of 13 segments 15 in the top flange 12 of an embodiment of the carrier 10. The carrier 10 has at least two nebeneinan ^¬ the arranged rows 13 in the lower flange 11 and at least two juxtaposed rows 13 in the top flange 12. The carrier 10 has a length adjustment portion 41 with two vertical sheet metal elements 42 as truss elements 18, which extend transversely, for example, perpendicular to the row ^¬ direction R. The vertical sheet metal elements 42 are clamped between the segments 15 in the lower flange 11 and in the upper flange 12 by means of the prestressed clamping elements 14. Between the vertical sheet metal elements 42 12 segments 15 are arranged in the lower flange 11 and in the upper flange, whose lengths are adapted to provide a carrier 10 with a desired length. The Längsanpassabschnitt to be ^¬ adjacent segments 15 also each have an adapted length. For stabilization, stabilizing elements 43 made of sheet metal are arranged between the vertical sheet-metal elements 42, which extend along the clamping elements 14 and which are fastened to the vertical sheet-metal elements 42, for example by means of welding or hanging. Otherwise, the description with respect to Figure 1 applies analogously. Alternatively, or in addition to in the figures possibilities 5 and 6 for providing a carrier 10 with adapted length may, for example, the win ^¬ angle to the horizontal or the vertical by extending obliquely to the horizontal and vertical sections 19 may be adjusted by half-timbered elements 18 are clamped between segments 15 in order to use segments 15 with ^{mated ¬} ter length can.

The truss girder 10 according to the invention can be completed at one end 21a, b or at both ends 21 a, b with a truss element 18 (posts) arranged perpendicular to the lower chord 11 and / or upper chord 12. 7 shows to an embodiment of the inventive compartment ^¬ girder 10 with a lower flange 11 and an upper flange 12, the flush lockable ^¬ SEN at one end 21b of the carrier 10, while the upper flange 12 at one end 21a of the support

10 protrudes beyond the lower flange 11. The vertical compartment ^{¬ work} element 18 made of sheet metal for completion is between the Ab ^¬ closing elements 23 of the lower chord 11 and the upper chord 12 and the ends 25 b of the rows 13 adjacent segments 15 by clamping by means of the clamping element 14 is ^¬ clamped. Alternatively, the upper chord 12 and the lower chord

11, for example, be the same length, with a vertical truss element 18 at each end 21a, b is arranged. The descriptions of the other embodiments apply to the embodiment explained in connection with FIG. 7 otherwise analogously.

The form-fitting elements 32 of the Trä ^¬ gers 10 according to the invention can each be multi-part. Figure 8 shows in ^¬ game as a multi-part form-fitting element 32 to the manufacturers Position of a positive connection between two adjacent segments 15 in the lower flange 11 and / or top flange 12 as it can be used for example in one of the described embodiments. The form-fitting element 32 has a first part 44, which is arranged in a section at one end 28a of one of the adjacent segments 15, preferably fitting, and a second part 45, which in a section at the adjacent end 28b of the other of the adjacent segments 15, preferably fitting, is arranged. The form-fitting element 32 also has a third part 46, which, preferably fit, in each case a receptacle 47 a, b of the first part 44 and the second part 45 is arranged. The or the clamping elements 14 extend through the third part 46. The first, second and third parts 44, 45, 46 can be made of aluminum or steel, for example. The first 44, second 45, and third members 46 together provide positive engagement between the adjacent segments 15 transverse to the direction of clamping force due to the longitudinally biased biasing members 14. The third member 46 has an outer width and / or height smaller than the outer width and / or height of the first and second part is (width and / or height depending ^¬ transversely to the longitudinal direction of the adjacent segments 15 and transverse to the row direction R). The third part 46 is arranged in recesses 48 in the end portions 20 of the truss elements 18, preferably accurately. Extending through the recesses 48 in the end portions 20 in the receptacle 47a of the first portion 44 and the receptacle 47b of the second portion 45 extending third portion 46 ver ^¬ averages a positive connection transverse to the clamping direction of force between the end portions 20 and over the first part 44 and the second part 45 between the end portions 20 and the adjacent segments 15. In a multi-part embodiment, tion form of the positive locking elements 32 are only relatively small ^¬ ne recesses 48 in the end portions 20 for receiving the positive locking element 32, here the third part 46 of the positive locking element 32, required. The one or more clamping elements 14 form at the ends 28a, 28b of the segments 15 no positive locking elements transverse to the clamping force. The Anord ^¬ voltage of the third part 46 in the first portion 44 and second portion 45 and the arrangements of the first part 44 in the segment 15 and the second part 45 in the segment 15 are adapted so that it is not a Verrut ^¬ Tween the segments 15 relative to each other or a slipping of the end portions 20 relative to each other across the clamping force is such that at the ends 28 a, 28 b a force across the clamping force on the clamping elements 14 or 14 would be exercised. The outer dimensions of the first part 44 and the second part 45, 46 are correspondingly adapted to the inner dimensions of the segments 15 at the ends 28a, 28b and the outer ^¬ measure of the third part 46 is corresponding to the inner dimension of the recesses 48 in the end portions 20 and adapted to the internal dimensions of the receptacles 47a, 47b in the first part 44 and the second part 45. At the adjacent ends 28a, 28b of adjacent segments, the clamping element or elements 14 are preferably at least slightly spaced from the positive ^locking elements 32 of the row 13, independently of a one-part or multi-part structure of the form-locking elements 32. To produce a positive connection during assembly of the carrier 10, for example, the first part 44 is inserted into the section at the end 28 a of the segment 15. Then, for example, the truss element 18 is arranged at the end 28a of the segment 15 and the third part 46 is inserted into the recess 48 in the end section 20 of the truss element 18 and into the receptacle 47a of the first part 44. On the third part 46 can then End portion 20 of a further truss element 18 gescho ^¬ ben. Finally, for example, the second part 45 is pushed onto the third part 46 and the adjacent segment 15 onto the second part 45. Alternatively, it is possible, for example, to start at the end 28b. The first 44, second 45 and / or third portion 46 can attachment means (not shown) may be assigned to fix the first 44, two ^¬ te 45 and / or third 46 part, in particular in combination ^¬ construction, in the row direction R. The multipart form-fitting element 32 serves during assembly as a positioning ^¬ auxiliary element 32nd

The carrier 10 of the invention has at least one row 13 of adjacent arranged segments 15, wherein a row 13 preferably from one end 21a of the Trä ^¬ gers 10 extends to the opposite end 21b of the carrier 10 degrees. In a preferred embodiment, extends through the at least one row 13 at least one Spannele ^¬ ment 14, which can also be referred to as tie rods and anchored at the ends 25a, b of the row 13 and biased against the row 13 to the segments 15th to hold the row 13 together. The adjacent segments 15 are braced against each other at their end faces 24 by means of the one or more clamping elements 14, wherein between the end faces 24 one or more than one element, such as a sheet metal, or no element can be arranged. The connection of adjacent segments 15 of the row 13 with each other due to the bias of the one or more clamping elements 14 of the row 13 against the row 13 is preferably so high that the further connection means for connecting the ^{neigh ¬} th segments 15 of the row 13 are not required. Before ^¬ preferably is therefore not a material fit connection as et ^¬ wa a welded joint, and / or screw connection between two adjacent segments 15 of a row 13 for connecting the adjacent segments 15 to each other, which would be loaded during operation of the carrier 10 in a mounted device 33, 34 along the longitudinal extent of the row 13 to train. In exporting may ^¬ approximately examples a positive connection between adjacent segments be present 15, the slippage of the adjacent segments 15 relative to each other or arranged between the adjacent segments 15 element, such as a truss member 18 relative to one of the segments 15 crosswise, for example perpendicular to prevented by the clamping element 14 exerted clamping force. The carrier 10 can be provided at a place of use by the individual segments 15 transported to the site and only there arranged to the row 13 and clamped by means of the clamping element 14.

Embodiments of the device 34 according to the invention have at least one carrier 10 with a row 13 with at least three successively arranged segments 15, wherein the segments 15 of the row 13 against each other with ^{¬ means of} a in the carrier 10 extending clamping element 14 are braced, wherein the clamping element 14 extends through the series 13, wherein the clamping element is anchored 14 at the opposite ends 25a, b of the row 13 of segments 15 in order to clamp the ge ^¬ against each other segments 15 of the series 13, and wherein between two adjacent segments 15 of the series 13 a form fit is Herge ^¬ is to prevent by the tension of the segments 15 of the row 13 against each other by means of the clamping element 14 and the positive locking movement of the adjacent segments 15 re ^¬ relative to each other transversely to the longitudinal direction of the segments 15 without an external support tion of the adjacent ends 28a, b of the segments 15 is present against the ground.

Reference sign list:

34 bridge crane

35 head carrier

36 crane runway

37 cat

38 wall

39 intermediate element

40 turnbuckles

41 length adjustment section

42 vertical sheet metal element

43 stabilizing element

44 first part

45 second part

46 third part

47a, b shots

48 recess

L length of a segment

A workspace

H horizontal

V vertical

B-B cutting plane

P arrow

R row direction

Claims

Claims:

1. carrier (10) having a row (13) with at least two successively arranged segments (15), wherein the segments (15) of the row (13) against each other by means of a in the carrier (10) extending clamping element (14) are braced wherein the clamping element (14) at the opposite ends (25a, b) of the series (13) of segments (15) is anchored to clamp the segments (15) of the row (13) gegenei ^¬ Nander.

Second support (10) according to any one of the preceding claims, wherein between two adjacent segments (15) of the row (13) no train loaded on fabric connection, in particular welded connection, and / or screw connection for connecting the adjacent segments (15) with each other is.

3. A carrier (10) according to any one of the preceding claims, wherein the clamping element (14) extends through the row (13).

4. carrier (10) according to any one of the preceding claims, wherein at least one row (13) segments (15) of egg ^¬ nem end (21 a) of the carrier (10) to the opposite end (21 b) of the carrier (10) extends.

5. carrier (10) according to any one of the preceding claims, wherein the clamping element (14) at one end (25 a) of the row (13) or at both ends (25 a, b) of the row (13) except ^¬ half the row (13 ) is anchored by segments (15).

6. carrier (10) according to any one of the preceding claims, wherein the length (L) of the segments (15) is at most 1.2 m.

7. carrier (10) according to one of the preceding claims, wherein the clamping element (14) of at least two Spannele ^¬ ment segments is constructed.

8. carrier (10) according to any one of the preceding claims, wherein a segment (15) has a bottom (15a), a lid (15c) and two in the row direction (R) extending side walls (15b).

9. carrier (10) according to any one of the preceding claims, wherein the carrier (10) is a truss girder.

10. A carrier (10) according to claim 9, wherein the carrier

(10) at least one row (13) of segments (15) in the lower flange (11) of the carrier (10) and / or at least one row (13) of segments (15) in the upper flange (12) of the carrier (10).

11. carrier (10) according to any one of claims 9 or 10, wherein between the lower flange (11) and the upper flange

(12) truss elements (18) extending at an angle to the vertical and / or vertical truss elements

(18) are arranged, wherein at least one Endab ^{¬ section} (20) of a truss element (18) between ^¬ adjacent segments (15) is held.

12. Device (33, 34) with at least one carrier (10) according to one of the preceding claims.

13. Device (33, 34) according to claim 12, wherein the device (33, 34) has at least one head carrier (35) which is arranged at one end (21a, b) of the carrier (10), wherein the clamping element (14 ) is anchored in the head carrier (35) to the head carrier (35) by the bracing of the head carrier (35) against the segments (15) of the row (13) on the carrier (10) with ^{¬ means of} the clamping element (14) fasten.

14. A method of providing a carrier (10) according to any one of claims 1 to 11, comprising the steps of:

- Providing the segments (15) and the Spannele ^¬ management (14) on a construction site at the site;

Arranging the provided segments (15) into a row (13);

- Spanning the in the row (13) arranged segments (15) against each other by means of the clamping element (14).