EP3147424A2 - Support de grille et systeme de support de grille, en particulier pour utilisation universelle dans un echafaudage de protection ou de travail connu - Google Patents

Support de grille et systeme de support de grille, en particulier pour utilisation universelle dans un echafaudage de protection ou de travail connu Download PDF

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Publication number
EP3147424A2
EP3147424A2 EP16001940.2A EP16001940A EP3147424A2 EP 3147424 A2 EP3147424 A2 EP 3147424A2 EP 16001940 A EP16001940 A EP 16001940A EP 3147424 A2 EP3147424 A2 EP 3147424A2
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EP
European Patent Office
Prior art keywords
lattice girder
lattice
connection
longitudinal direction
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16001940.2A
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German (de)
English (en)
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EP3147424B1 (fr
EP3147424A3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilhelm Layher Verwaltungs GmbH
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Wilhelm Layher Verwaltungs GmbH
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Publication of EP3147424A2 publication Critical patent/EP3147424A2/fr
Publication of EP3147424A3 publication Critical patent/EP3147424A3/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/12—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means comprising members of special, e.g. composite, cross-section or with lugs or the like or lateral apertures for supporting or attaching other members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/14—Comprising essentially pre-assembled two-dimensional frame-like elements, e.g. of rods in L- or H-shape, with or without bracing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/26—Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards

Definitions

  • the present invention relates to a lattice girder with a truss-like support structure, in particular of metal or aluminum, with a longitudinally continuous upper chord, a longitudinally continuous lower chord, vertical posts whose opposite end portions connected to the upper chord and the lower chord, in particular welded, are diagonals , which are connected to opposite end portions of the upper flange and the lower flange between the vertical posts, in particular welded.
  • the present invention further relates to a modular lattice girder system consisting of lattice girders, which is universally applicable in a known working and protective scaffold, which is universally applicable in an existing work and protective scaffold.
  • Lattice girders or lattice girder systems are used in large spans, for example in surface scaffolding, roofs, podiums or as a substructure or as a suspension for suspended scaffolding or as roof structures for keder roofs.
  • Commercially available lattice girders are for example from the catalog " LAYHER SCAFFOLD ACCESSORIES, page 8, issue 04.2014
  • Such lattice girders are made of steel or aluminum and are mainly used for stiffening scaffolds or for short bridging.
  • the upper and lower girths are generally made of conventional round tubes without a groove vertical struts are usually made of rectangular profiles, round tube profiles or oval profiles, which have no connection units.
  • the stiffening or lateral stabilization via pipes which are connected with couplings.
  • the assembly of accessory components is only possible if the component to be connected has a coupling connection. Corners or complex structures can not be built hereby. An installation of such lattice girders in the middle of a scaffold field is not possible, since the then necessarily to be used clutches would have to be mounted outside of the scaffolding field. Roofs can not be built with such lattice girders either.
  • lattice girders which contain in addition to a top flange, a lower flange and vertical posts and crossing diagonals.
  • Such lattice girders find their use mainly in suspended surface scaffolding and long bridges.
  • the upper and lower straps are formed without a groove and the diagonal and vertical struts are made of round tubes, which have no connection units.
  • the stiffening of the lattice girders with each other within the supporting structure takes place via pipes and couplings or via components with latching claw. The assembly of accessory components is only possible if this component has a coupling connection.
  • a steel lattice girder finds its use preferably in roof structures or long bridges.
  • the upper and lower belt is without Groove formed and the diagonal struts are made as a rectangular profile.
  • the connection of accessories with coupling connection is not possible due to this type of profile.
  • the vertical struts consist of a round tube, which have perforated discs. The stiffening is done by bars and diagonals. Corners or complex spatial structures can not be built with such a lattice girder construction. Roofs can be built due to sloped lattice girders.
  • top and bottom chords are made of round tubes without groove.
  • the diagonal and vertical struts are made of round tube profiles, which have no molded-on connection units.
  • the stiffening of the lattice girders is carried out with each other. The installation of accessory components is only possible if this component has a coupling connection, corners or complex structures can not be built in.
  • a bridge girder which represents a lattice girder system based on individual parts (posts, crossbars, diagonals, fasteners, etc.) and which finds its use for extremely long bridgings and heavily loaded scaffolding.
  • the upper and lower girths consist of a rectangular profile without a groove.
  • the diagonal strut consists of one Dywidag staff.
  • the vertical posts consist of a rectangular profile with wedge heads, which can be connected to the perforated discs of a modular scaffold, in particular Layher Allround scaffolding. It is not possible to connect accessories with a coupling connection to these profiles. Connection units in the form of perforated discs are not available. Corners or complex structures can not be built with such bridge girders. Installation in the middle of a scaffolding field is not possible because the bridge girder would have to be connected outside the system size. Roofs can not be built with such carriers.
  • the present invention the object or the technical problem underlying a lattice girder and a modular lattice girder system to provide that is simple and inexpensive to produce, universal and variable within a known working and protective scaffold, in particular the Layher Allround modular scaffold, can be used, has a compatibility with this scaffolding system, has a high load capacity, can be used within an existing modular scaffold for installing a variety of building geometries, has large spans and can be used as a binder construction for roofs with large spans.
  • the lattice girder according to the invention is given by the features of independent claim 1.
  • Advantageous embodiments and further developments of the lattice girder according to the invention are given by the claims 1 to 15 and 26, which are directly or indirectly dependent on the independent claim 1.
  • the modular lattice girder system according to the invention is given by the features of independent claim 16.
  • Advantageous embodiments and developments of this modular Lattice girder system are given by the dependent of the independent claim 16 directly or indirectly dependent claims 17 to 24.
  • a scaffolding construction according to the invention consisting of the components of a modular framework in conjunction with the lattice girders according to the invention or the lattice girder system according to the invention is given by the features of independent claim 25.
  • the lattice girder according to the invention is accordingly distinguished by the fact that the upper chord and / or the lower chord have a continuous, undercut groove open towards the outside or underside, via which further components, in particular components of a modular framework, in any position in FIG Can be connected longitudinally.
  • the upper flange / lower flange is designed as a hollow profile, in particular a tubular and rectangular profile.
  • the undercut groove is polygonal running according to a particularly preferred embodiment, in particular rectangular or dovetailed or part-circular formed with respect to its inner peripheral contour.
  • a particularly advantageous embodiment which particularly improves the variability with respect to the connection possibilities of surrounding components, is characterized in that the lattice girder comprises at least one, in particular a plurality, vertical posts, with connecting elements, in particular escutcheons, for connecting further components, in particular scaffolding components, whose Distance in the height direction, that is, the longitudinal direction of the vertical post one half, whole or a multiple of the whole of the grid dimension of a modular framework correspond.
  • the compatibility with existing modular scaffolding, within which the lattice girder according to the invention can be installed, is according to a particularly advantageous embodiment, characterized in that the distance in the longitudinal direction between vertical posts with connecting elements, that is, the pitch corresponds to a half, single or multiple a grid dimension of a modular framework.
  • variable or different length of the lattice girder to be used in each case can be implemented particularly simply by seeing one or more consecutive diagonals rising from the lower chord to the upper chord between two vertical uprights and then one from the upper chord to the lower chord falling diagonal is connected.
  • a particularly preferred embodiment which ensures a high dimensional stability in the production process of the lattice girder, is characterized in that in the respective opposite end region of the lattice girder a vertical post without connecting elements between the upper and lower chord is connected.
  • an advantageous embodiment is characterized in that at least one, in particular a plurality of longitudinally spaced, coupling recesses are provided in the end region of the upper belt and the lower belt.
  • an advantageous embodiment is characterized in that in the / the center line / s of the upper belt / lower belt an outwardly open continuous notch is formed.
  • a particularly advantageous embodiment of the lattice girder according to the invention is characterized in that the upper chord / lower chord has at least one laterally arranged, in particular two opposing laterally arranged, in particular in the upper and lower side edge region, molded Kederprofilausnatural aus , Due to the existing KederprofilausEnglishept in Obergurt- or Untergurtprofil Keder roof tiles can be connected in a simple manner, with the arrangement of KederprofilausEnglish aus in the upper and lower side edge region of the upper chord an offset Kederdachplanen to be connected is possible, so that these on the one hand offset in height and on the other hand with an overlap in Lengthways to simplify handling in manageable lengths each can be recovered.
  • the offset ensures ventilation, so that, for example, condensation can be counteracted.
  • a particularly advantageous embodiment which allows the formation of curved trusses or trusses supporting structures, is characterized in that the upper chord and the lower chord have a localized / limited kink / curve in a convex or concave shape at opposite positions in the height direction.
  • a particularly preferred embodiment is characterized in that the lattice girder serves as a knot-girder between incoming and outgoing Lattice girders is formed, wherein the node grid carrier a connection of incoming and outgoing lattice girder seen in a plan view in each case at a predetermined angle to each other, in particular at an angle of 90 °, allows the node grid carrier having a central seen in a plan view in the node terminal post, the In particular, has connecting elements and in each connecting direction, starting from the central terminal post and the upper chord, a, in particular falling, diagonal, which is connected to the lower chord and each has a vertical post in the free end region.
  • a diagonal strut is connected, in particular welded, in each case between the upper and lower girths arranged in the longitudinal direction and transverse direction.
  • a particularly advantageous embodiment is characterized in that the node lattice girder makes it possible to connect a first and second lattice girder element at right angles, that is to say as L-girder elements.
  • Knotengitter allows the connection of two longitudinally continuous lattice girders and a transversely extending lattice girder, that is designed as a T-Eckitatissch or the Knotengittermik allows the connection of two longitudinally continuous lattice girder and two transversely continuous lattice girder, that is is designed as a crossing connection means.
  • the modular lattice girder system according to the invention is characterized by module units which can be modularly combined with one another and have universal compatibility with a modular unit existing modular scaffold system or the construction of a universally usable support structure allow at least two or more longitudinally and / or transversely aligned lattice girder and / or Knotengittermay according to one or more of the preceding claims, wherein the end portions of adjacent upper straps and adjacent lower straps respectively by Gurtverbinder wornen are releasably connected together.
  • the Gurtverbinder wornen have an outer contour / inner contour, such that it can be positively inserted into the inner contour of the upper and lower straps or on the outer contour the upper and lower straps are designed to be slidable and have connecting recesses which in the pushed-in / pushed-in state are aligned with the coupling recesses of the upper straps or lower straps and a fixing of adjoining upper straps / lower straps takes place by inserting bolt units or screw units into the connecting recesses and the coupling recesses.
  • the belt connector device which can be inserted in the longitudinal direction, is designed as a hollow profile and the belt connector device, which can be pushed in the vertical direction, essentially as a U-profile, which connects adjacent upper and lower straps to one another via connecting means.
  • a particularly advantageous embodiment of the lattice girder system according to the invention which ensures the variable use of the lattice girder system within an existing scaffold system in a simple manner, is characterized in that at least one, in particular a plurality of connection devices is connected via the groove to the upper chords and / or lower chords. are that way are formed, that further components, in particular scaffolding components, can be connected.
  • connection device which ensures economical production particularly simple handling during assembly, is characterized in that the connection device has a bearing plate with LagerplattenausEnglishept via the means of T-nuts or hammer head units a connection to the groove of the upper chords / lower chords and connected to the bearing plate connection units, in particular welded, which allow the connection of other components.
  • connection units as a hollow profile, in particular pipe profile, with or without connection element or with or without pipe connector with stop or hook or eyelet unit, are formed.
  • connection device is designed as extending in the longitudinal direction Anschlußprofilstab issued, which is connected on the one hand in the groove of the upper / lower belt and on the other Connection options for connecting scaffolding floors or for connecting Kederplanenrandprofilen has.
  • connection device has two successively arranged in the height direction Anschlußprofilstab wornen, such that height moderately offset at least two terminal units for Kederplanenrandprofile are present, so that Kederplanenrandprofile offset in the longitudinal direction with overlap and height offset can be connected.
  • Kederdachplanen Due to the formation of two spaced apart in the height direction arranged Anschlußprofilstab noticeden it is possible to limit the length of the connected Kederdachplanen arbitrarily to a simple handling during assembly at a long roof area, wherein on the one hand by the overlap and the height offset a tightness and on the other hand ventilation of the substructure is possible.
  • a particularly preferred embodiment of the lattice girder system according to the invention which can cover large areas with large spans reliably and reliably with high load capacity, is characterized according to the invention in that at least two transversely spaced parallel lattice girders or at least two spaced apart in the transverse direction from each longitudinally more coupled Lattice girder existing lattice device is present, wherein between the lattice girders or the lattice girder device a stiffening structure consisting of cross bars and transverse diagonals is present, whose end are respectively connected to the connection elements of the vertical posts, so that a truss structure in the plane of the upper and lower straps and in the plane formed in the transverse direction of adjacent vertical posts.
  • a scaffold construction according to the invention consisting of the components of a working and protective scaffold such as vertical, horizontal and / or diagonal scaffolding elements and scaffold planks is characterized according to a particularly advantageous development in that the scaffolding posts of the working and protective scaffold on top straps and / or bottom straps of lattice girders after a or more of claims 1 to 15 or to a lattice girder system according to one or more of claims 16 to 24 are connected, in particular such that the vertical support members of the working and Scaffold with the vertical posts of the lattice girders are aligned or connected with an offset in the longitudinal direction.
  • the lattice girder according to the invention or the modular lattice girder system which preferably consists of aluminum, it is possible, for example, to convert large spans into surface gantries or to create roofs with a large span or to create heavily loaded podiums.
  • separate systems developed to date for these different applications have been required. Due to the inventive compatibility with an existing modular scaffolding system, in particular the Allround scaffolding system from Layher, compliance with its system dimensions is ensured and thus enables easy and quick installation without difficulty. Specially developed modular accessory components such as belt connector devices, connection devices that can be easily connected in the groove of the upper / lower belt enable variable use within an existing modular scaffold.
  • highly load-bearing components can be mounted in a simple manner that reliably remove large spans and high loads.
  • the lattice girder system according to the invention is characterized in particular by the fact that the top and bottom chords of the individual lattice girders consist of one - according to a preferred embodiment - aluminum extruded profile with integrated groove.
  • the aluminum extruded profile is designed in a variant as a round tube profile.
  • a profile for the upper and lower belt is provided, which consists of a rectangular extruded profile with integrated groove and optionally with Kederplaneneinkg.
  • the vertical posts with connecting elements (perforated discs) at the distance of the system dimension of an existing modular scaffold ensure that it is possible to build on within the system dimension including surrounding components of a modular scaffold with the same system dimension.
  • the connection elements on the vertical posts ensure that a plurality of parallel spaced lattice girders can be connected together to form a load-bearing construction by means of transverse bars and transverse diagonals, in order to provide a flat supporting structure even for large spans.
  • a particularly preferred embodiment of the straps of the lattice girders which ensures high loads, is characterized in that the geometry of the upper / lower belt is formed so that the ratio of the width of the groove to the outer diameter of the belt is less than 0.4, in particular ranges between 0.3 and 0.4.
  • Fig. 1 is shown in cross-section a first embodiment of a top strap 20.1 of a lattice girder, which is designed as a tube profile, in particular as an aluminum extruded profile.
  • the upper flange 20.1 has in the exemplary embodiment a diameter B1 of 60.3 mm and a wall thickness of 6 mm.
  • the upper side is formed in the cross-sectional shape an upwardly open, undercut, rectangular, continuous in the belt length direction groove 30, which has an internal groove width of 22.5 mm in the embodiment.
  • a continuous flattening 64 is present in both edge regions of the groove 30. This flattening 64 serves as a support for connection devices, which are described below.
  • a longitudinally passing relatively small notch 32 is provided, which serves as an adjusting aid for attaching any holes. Also in the middle of the groove bottom of the groove 30, such a notch 32 is present.
  • coupling recesses 36 are provided on both sides, which serve for coupling adjacent abutting upper straps 20.1 using Gurtverbinder wornen described below.
  • a lattice girder 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 (see FIG Fig. 3 to 8 ) Furthermore, a lower flange 22.1, which is mirror-symmetrical to the center line, that is, has a downwardly open groove 30 and is formed from the cross-sectional dimensions forth identical to the upper flange 20.1.
  • Fig. 2 is a second embodiment of a top strap 20.2 shown for a lattice girder 10, which is also formed as an extruded aluminum profile, wherein the cross-sectional shape is formed as a rectangular tube whose outer diameter B1 is 100 mm in the embodiment.
  • an outwardly open, undercut, rectangular groove 30 is present on the upper side, the inner width B2 of which is 31 mm in the exemplary embodiment.
  • open Kederprofilaus strictly termed 34 are formed on the upper flange 20.2 on both sides in each case in the upper and lower edge region to the side, which allow the connection of a Kederprofils with a tarpaulin.
  • the ratio B2 (groove width) to B1 (outer diameter) is in the range between 0.3 and 0.4.
  • the first embodiment as a round tube section 20.1 it is the case of the selected dimensions of the groove 30 not to standardized dimensions.
  • the dimensions are adapted to the round tube cross-section.
  • a standard groove would be larger, which would reduce the available internal cross-section for the connection of Gurtverbinder wornen, which would drastically reduce the sustainability of the connection.
  • Fig. 3 is a perspective view of a first embodiment of a lattice girder 10.1, wherein this lattice girder 10.1 represents a modular unit for a lattice girder system, which can be combined with other lattice girders (module units) described below.
  • the longitudinal direction is indicated by L, the transverse direction by Q and the height direction by H.
  • L of the upper flange 20.1 is arranged with its upwardly open undercut groove 30.
  • On the underside of the lower flange 22.1 is arranged mirror-inverted with the same cross-section and a downwardly facing groove 30.
  • the end portions are welded on the upper side with the upper flange 20.1 and the lower side with the lower flange 22.1.
  • connection elements 40 spaced apart in height direction H, which are designed as rosettes (perforated disks) for connecting further components, in particular scaffold components via a wedge head connection, which, for example, in the known Layher Allround scaffolding system can be used.
  • the distance of the connecting elements 40 in the height direction H carries R / 2, where R is a modular grid dimension of a modular framework, in particular of the known Layher Allround modular scaffolding.
  • the length of the upper belt 20.1 or lower belt 22.1 corresponds to the grid dimension R, the central vertical post 24.1 being arranged in the middle (grid dimension R / 2) of the scaffold carrier 10.1.
  • a second embodiment of a lattice girder 10.2 is shown, which has the length 2R.
  • the lattice girder 10.2 has two vertical posts 24.1, which are arranged symmetrically with respect to the center, with connection elements 40, the spacing of which is in the longitudinal direction R.
  • connection elements 40 In the area between both vertical posts 24.1 is in the longitudinal direction, starting from the in Fig. 4 left vertical post 24.1 a rising diagonal 26.2 and a falling diagonal 26.1 welded.
  • the left and right end region of the lattice girder 10.2 according to Fig. 4 corresponds from the left or right vertical post 24.2 each of the embodiment as the edge regions of the lattice girder 10.1 according to Fig. 3 each with a vertical post without connecting elements in the end and a subsequent falling or rising diagonal 26.1, 26.2.
  • the vertical post 24.2 in the end area also serves to counteract welding distortion, so that the system dimensions can be maintained exactly.
  • FIGS. 5 . 6 and 7 show further embodiments of lattice girders 10.3, 10.4, 10.5, which in principle have the same structure as the lattice girder 10.2 according to Fig. 4 , but with the difference that in each case the lattice girder is made longer by a truss field with a rising diagonal 26.2, a vertical post 24.1 and a falling diagonal 26.1 in the size of the grid R dimension.
  • the same components bear the same reference numerals as in the lattice girder 10.2 in Fig. 4 and will not be explained again.
  • a vertical post 24.2 without connecting elements is present in the end region.
  • a vertical post 24.1 with connecting elements 40 is available in Fig. 8 a sixth embodiment of a lattice girder 10.6 shown, which can also be combined as a modular unit within a scaffold carrier system with the lattice girders 10.1, 10.2, 10.3, 10.4, 10.5 described above.
  • the lattice girder 10.6 points in his in Fig. 8 left end portion of a vertical post 24.1 with connection elements 40 and in his in Fig. 8 right end of a vertical post 24.2 without connection elements 40 on.
  • the lattice girder 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 are preferably used for the vertical posts 24.1, 24.2 and the diagonal 26.1, 26.2 round tube profiles with an outer diameter of 48.3 mm and a wall thickness of 4 mm, the are welded to the upper flange 20.1 and lower flange 22.1.
  • FIGS. 9 to 12 Exemplary embodiments are illustrated how individual lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 aligned in the longitudinal direction L are coupled to one another in a statically supporting manner.
  • the coupling of the lattice girders 10 to each other is carried out by the coupling of abutting upper chords 20.1, 20.2 and each other lower chords 22.1, 22.2 by Gurtverbinder wornen 42.1, 42.2, which will be described below.
  • a first embodiment of a Gurtverbinder worn 42.1 is formed as a solid profile, in particular full aluminum profile and has an outer peripheral contour, which corresponds to the inner peripheral contour of the upper belt 20.1 or lower belt 22.1 or is substantially smaller, so that the Gurtverbinder worn 42 can be inserted positively into the interior of the tubular profile of a belt 20, 22 in the end region.
  • Each upper flange 20.1, 20.2 and each lower flange 22.1, 22.2 have in their end region in each case three coupling recesses 36 arranged one behind the other in the longitudinal direction L.
  • the Gurtverbinder worn 42 also in the longitudinal direction L arranged one behind the other - at the level of the center line - three through Anschlußausappel undertaken 44 - two symmetrically to the center - so that a total of six on the Gurtverbinder worn 42 Anschlußaus traditions 44 are present.
  • the belt connector device 42 has on the upper side a recess 68 whose inner contour substantially corresponds to the inside outer contour of the groove 30.
  • a continuous notch 70 and at the level of the connection recess 44 extending in the longitudinal direction is also a notch 70 is present. Both notches 70 provide an optical orientation line, if additional holes must be attached to allow further connections.
  • Fig. 10 the coupling state is shown in an explosive perspective.
  • the belt connector device 42 is inserted into the inner cavity of a upper belt 20.1 until the connection recesses 44 are aligned with the coupling recesses 36 of the upper belt 20.1 in the transverse direction Q.
  • a bolt 72 can be inserted from the outside, which is secured on the opposite side by means of a split pin 74. Accordingly, 10.1, ... is moved on the opposite top flange 20.1 of the next lattice girder. The same procedure is also carried out at the lower flange 22.1, 22.2.
  • a belt connector device 42 is used whose outer peripheral contour is the inner peripheral contour of the rectangular hollow profile essentially corresponds. This embodiment is not shown in the figures.
  • the Fig. 11 shows a further Gurtverbinder adopted 42.1, which is formed as a U-profile and in the flanges of the U-shaped profile twice in the longitudinal direction L behind the other spaced arranged Anschlußaus traditions 44 and in the web area has two slot recesses 76, also extending in the longitudinal direction L, which is connected Condition with the opening slot of the groove 30 are aligned.
  • Fig. 12 shows the coupled state of a lower belt 22.1.
  • the Gurtverbinder worn 42.1 according to Fig. 9 can in the Gurtverbinder worn 42.2 the incoming and outgoing upper straps 20.1, 20.2 or lower straps 22.1, 22.2 in height direction H in the U-shaped Gurtverbinder adopted 42.2 are used and then via screw units 78 through the coupling recess 36 of the straps 20, 22 and the Anschlußaus Principlebericht 44th the Gurtverbinder engaged 42.2 are guided, connected.
  • the diagonals and vertical bars connected to the lower chord 22.1 are not shown.
  • the U-shaped Gurtverbinder worn 42.1 sometimes simplifies the assembly process in the coupling of scaffold beams, as in contrast to the positive insertion of the straps 20, 22 on the Gurtverbinder worn 42.1 a simple threading from above or from below the straps 20, 22 is possible.
  • the lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 are in particular designed such that they can be combined in a compatible manner with an existing modular framework, in particular the Layher Allround framework system, and used variably.
  • further modular units are being used as part of the modular scaffold truss system Provided that allow easy connection while ensuring high load-bearing capacity.
  • connection device 46.1 on the underside, has a rectangular bearing plate 48 which, in its end regions in the longitudinal direction L, has two opposite bearing plate recesses 50, which make it possible for the bearing plate 48 to extend over into Fig. 13 not shown Nutensteinin opposition or Hammerkopfschraubeneuren in the groove 30 of a belt 20, 22 can be connected.
  • a tubular connection unit 52.1 is connected, in particular welded, which has a connection element 40 which is designed as a rosette or perforated disc and ensures a compatible connection of components of a modular framework.
  • the distance of the connecting element 40 to the lower level of the bearing plate 48 is indicated by A1.
  • a pipe connector 56 is integrally formed on the upper side, which has a smaller diameter than the connection unit 52.1, so that a stop 58 is formed.
  • the pipe connector 56 in this case has an outer diameter which corresponds to the inner diameter of a profile element of a modular framework, in particular scaffolding handle, so that in a simple manner a scaffold post on the pipe connector 56 can be plugged until it strikes with its end face against the stop 58.
  • connection device 46.2 in principle has the same structure as the connection device 46.1 according to Fig. 13 , The same components bear the same reference numerals and will not be explained again.
  • the difference of the connection device 46.2 to the connection device 46.1 is that the connection unit 52.2 has a greater length in the height direction H, that is, the connection element 40 has a distance A2 to the underside of the bearing plate 48, which is greater than the distance A1 at the connection device 46.1 Fig. 13 ,
  • Fig. 15 is a third embodiment of a connection device 46.3 shown, which also has a bearing plate 48 with recesses 50, wherein the upper side a simple round tube 60 connected in the vertical direction H, in particular welded. At this scaffold tube other scaffolding components can be opened or plugged or pipe couplings or the like can be connected.
  • Fig. 16 shows a fourth embodiment of a connection device 46.4 with a bearing plate 48 with Lagerplattenaus strictly traditions 50, wherein the upper side, the connection unit 52.4 is designed as a connection eye 62 which is connected to the bearing plate 48, in particular welded.
  • a connection device 46.4 for example, a cable construction can be connected as bracing or the connection eye 62 serves as a temporary connection possibility for a lifting tool during assembly.
  • Fig. 17 shows a detail of a lattice girder 10.5 with its upper flange 20.1 and its lower flange 22.1, being connected to the upper flange 20.1 connection units 46.1 and 46.2 and to the lower flange 22.1 connection units 46.3.
  • the connecting elements 40 of the vertical posts 24.1 are connected to one another in the vertical direction H in a grid dimension R / 2 on the vertical posts 24.1.
  • the distance between the connecting element 40 of the connecting device 46.1 and the upper connecting element 40 of the vertical post 24.1 of the lattice girder 10.5 also results in the grid dimension R / 2 when the connecting device 46.1 is mounted on the upper flange 20.1. This ensures system compatibility with regard to the grid dimension of a module stand connected to the lattice girders 10.5.
  • connection element 40 of the connection device 46.1 is dimensioned such that in the connected state to the upper connection element 40 of the vertical post 24.1 a grid R / 4 results, so that here also a compatibility with an adjacent modular framework is ensured.
  • connection devices 46.1, 46., 46.3 are each arranged in the height direction H in alignment with the longitudinal direction of the respective vertical post 24.1. Due to the continuous groove 30 in the upper flange 20.1 or in the lower flange 22.1, however, it is also possible to connect the connection devices 46 offset from the vertical posts 24.1, depending on which geometry is to be maintained with respect to the component to be equipped or the arrangement of surrounding frame components.
  • Fig. 18 shows a lattice girder system, which is designed as a surface system and has two transversely spaced Q parallel spaced lattice girder devices, which are each formed in the longitudinal direction L together lattice girders 10.6, 10.3 and 10.6. Between the parallel lattice girder devices a stiffening structure is formed as a framework, consisting of upper and lower crossbars 14 and transverse diagonals 16.
  • each lattice girder device It is in the plane of two vertically spaced in the transverse direction Q vertical posts 24.1 each lattice girder device by each at the upper and lower connection element 40 of the vertical post 24.1 connected cross bar and in the lower connection element 40 of the vertical post connected crossbar with intervening transverse diagonal a stiffening framework structure formed in the transverse direction Q.
  • the crossbars 14 and transverse diagonals 16 are in this case components of a modular scaffold system, such as the Layher Allround scaffold system, which is connected with the known connection technology to the connection elements 40 of the vertical posts 24.1.
  • FIG. 19 shown lattice girder system basically has the same structure as the lattice girder system according to Fig. 18 , but with the difference that the stiffening construction by transverse bar 14 and transverse diagonal 16 is designed so that the straps are held laterally only on every other vertical post 24.1, so that a kink length K2 is twice as high as the grid R.
  • Such a construction is possible, provided that the compressive forces occurring in the straps 20, 22 allow such buckling lengths.
  • a first knotted-grid girder 12.1 is shown, which makes it possible to connect lattice girders 10 at a right angle to each other-seen in a L-shaped plan view.
  • the Knotengitterizo 12.1 structurally has a similar structure as the lattice girder 10.6 according to Fig. 8 , with the difference that in the junction area a central terminal post 38 with Connection elements 40 is present, at which at an angle of 90 ° to connect the corner welded together upper straps 20.1, 20.2 and lower straps 22.1, 22.2.
  • a vertical post 24 connected, in particular welded, present, between the central terminal post 38 and the vertical post 24 a diagonal 26.1 between upper flange 20.1 and Lower chord 22.1 is welded.
  • the distance between the central terminal post 38 and the front side of the straps 20, 22 in the longitudinal direction L and in the transverse direction Q is respectively R / 2, so that when connecting other lattice girders 10, the grid R of the modular framework, that is the distance to the next vertical post 24.1 with connection elements 40, is maintained.
  • a diagonal strut 18 is connected or welded respectively, which additionally stiffens the knot grid supports 12.1.
  • an L-shaped connecting element is thus provided by the knot grid support 12.1, which enables the connection of lattice girders 10 in a longitudinal direction L and in a transverse direction Q, that is to say a corner formation of 90 ° is made possible.
  • Fig. 23 shows a second embodiment of a knot grid carrier 12.2 which basically has the same structure structure as the node grid carrier 12.1 according to Fig. 22 , but with the difference that seen here in a plan view, a T-shaped connecting element is provided, which allows the connection of two running in the longitudinal direction L lattice girders 10 and a perpendicular thereto in the transverse direction Q extending lattice girder 10.
  • Fig. 21 shows a third embodiment of a truss node grid carrier 12.3 with a basically similar structure as the node grid carrier 12.1, 12.2 according to the Figures 22 and 23 with the difference that seen in a plan view, a knot grid support 12.3 is provided, which is an intersection connecting element, with the two lattice girders 10 extending in the longitudinal direction L and two lattice girders 10 extending in the transverse direction Q, each at an angle of 90 ° between the transverse direction Q and longitudinal direction L can be connected.
  • Fig. 20 schematically shows an embodiment of a surface support structure using lattice girders 10 and node lattice girders 12, which is variably adaptable to the respective geometric conditions, the grid R is always guaranteed to connect other components of a modular framework.
  • Fig. 24 schematically another embodiment of a lattice girder 10.22 is shown, the upper flange 20.1 and lower chord 22.1 in the longitudinal direction L centered a kink K1, K2 or as in Fig. 25 shown centrally has a curvature K1, K2.
  • This buckling or curvature education in the central region is possible for virtually every lattice girder 10.
  • Fig. 29 shows in a perspective view of the use of a lattice girder system according to the invention with lattice girders 10 in the frame and in combination with an existing modular framework, in particular a Layher Allround scaffolding system.
  • the lattice girder system has two lattice girder devices spaced apart in the transverse direction Q with lattice girders 10 which are combined with one another and whose spacing in the transverse direction Q corresponds to the distance dimension of the module girder in the transverse direction Q.
  • the modular framework consists of vertical stems 80, transverse bars 82, longitudinal bars 84, transverse diagonals 86 and longitudinal diagonals 88. This modular framework, which is known as the Layher Allround framework, can be used flexibly.
  • the lattice girder construction is arranged so that the vertical posts 24.1 of the lattice girders in the height direction H are aligned with the vertical stems 80 of the module frame connected on the top and bottom side and, moreover, given system spacing in the area of the lattice girders 10 with respect to the grid dimension R of the module frame.
  • connection of the vertical stems 80 of the surrounding modular framework to the lattice girders 10 takes place via the connection devices 46.1 and 46.2 described above, the longitudinal and transverse diagonals 86, 88 being connected to the lattice girders 10 via the upper or lower connecting elements 40 of the vertical posts 24.
  • Fig. 28 shows a similar construction of the integration of a lattice girder system according to the invention in an existing modular scaffold with a basically similar structure, but with the difference that the vertical stems 80 are not aligned with the vertical posts 24.1 of the lattice girders in the vertical direction, that is in the longitudinal direction L is an offset V1 (top side scaffold ) or offset V2 (underside scaffolding).
  • V1 top side scaffold
  • V2 underside scaffolding
  • connection device 46.5 is used, which is formed as a longitudinal direction L continuous connecting section bar 54, which is present as an upwardly open U-profile is, in the pad floors 90 via a suspension claw 92 (see Fig. 31 ) can be hung.
  • a Abhebeschsprofil 94 is connected, which prevents lifting of the pad floors 90.
  • a spacer profile 90 is additionally arranged below the U-shaped connecting profile bar 54.1, which is formed as a rectangular hollow profile.
  • the connection profile bar 54 and the spacer profile 96 are connected via a groove unit or a hammer head unit to the groove 30 of the upper chord 20.1.
  • connection device 46.6 allows the connection of a Kederdachplane 100 to the lattice girder 10 and to the lattice girder system.
  • connection device 46.6 has a connection profile bar 54.2, which extends through in the longitudinal direction L and which is in accordance with FIG Fig. 39 is designed as a hollow profile rod, in particular as an extruded hollow profile rod, and has a Keder profile recess 104 in the upper and left side edge region. Furthermore, a connecting recess 116 is present in the upper flange and in the lower flange of the connecting profile bar 54.2, through which a Nutensteininheit or a hammer head unit for connection to the groove 30 of a belt 20 of a lattice girder can be passed.
  • connection profile bar 54.2 Another variant is according to the FIGS. 34 and 35 in that below the connection profile bar 54.2 a spacer profile 110 with aligned connection recesses 116 is present, which is designed as a rectangular hollow profile. In Fig. 34 the spacing hollow profile 110 has the same length as the connection profile bar 54.2.
  • Fig. 36 has the connection profile bar 54.2 with respect to the distance profile 110 in the longitudinal direction L a supernatant Ü on, that is, by means of such a construction, a roof projection of a Kederdaches or an overlap of adjacent Kederplanen 100 can be easily implemented (see Fig. 32 ).
  • a particularly advantageous embodiment of the connecting device 46.6 for connecting a Kederplane 100 via a Kederplanenrandprofil 102 arranged in a Kederprofilausnaturalung 104 is in Fig. 33 combined with Fig. 32 shown.
  • connection profile bar 54.2 according to Fig. 38 respectively Fig. 39 connected and one side a Kederplane 100 fed through a Kederplanenrandprofil 102 in the Kederplprofilaus Principleung 104.
  • a connection device 46.6 which in the FIGS. 36 and 37 That is, there is a connection profile bar 54.2 present, the relative to the connection profile bar 54.2 in the initial region of the lattice girder 10 has a height offset HK and at the same time allows a projection ÜK of the closing Kederplanen 100.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP16001940.2A 2015-09-24 2016-09-06 Support de grille et systeme de support de grille, en particulier pour utilisation universelle dans un echafaudage de protection ou de travail connu Active EP3147424B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015012275.4A DE102015012275A1 (de) 2015-09-24 2015-09-24 Gitterträger und Gitterträgersystem, insbesondere zum universellen Einsatz innerhalb eines bekannten Arbeits- und Schutzgerüsts

Publications (3)

Publication Number Publication Date
EP3147424A2 true EP3147424A2 (fr) 2017-03-29
EP3147424A3 EP3147424A3 (fr) 2017-04-05
EP3147424B1 EP3147424B1 (fr) 2020-06-03

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2019161825A1 (fr) * 2018-02-21 2019-08-29 Wilhelm Layher Verwaltungs-Gmbh Adaptateur de raccord de montant
WO2023099334A1 (fr) * 2021-12-01 2023-06-08 Peri Se Pièce d'assemblage pour assembler des éléments d'échafaudage
WO2023117343A1 (fr) * 2021-12-22 2023-06-29 Peri Se Élément de réglage de longueur pour un composant d'échafaudage, composant d'échafaudage, échafaudage et utilisation d'un élément de réglage de longueur dans un échafaudage

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DE19938970A1 (de) * 1999-08-17 2001-03-08 Mba Design & Display Produkt G Träger, insbesondere für den Messe- und Ladenbau
DE60030669T2 (de) * 1999-12-24 2007-09-13 T2 Systems Ltd. Strukturelemente und zugehörige Teile
DE102009021424A1 (de) * 2009-05-14 2010-11-18 Wilhelm Layher Verwaltungs-Gmbh Rahmenförmiges Fachwerk
US20140020982A1 (en) * 2011-11-02 2014-01-23 Saferile Platforms, Inc Pivoting Horizontal and Vertical Scaffold Members and a Method of Erecting an Offset Scaffold Platform
NZ717031A (en) * 2013-08-08 2019-08-30 Safway Services Llc Access structure integration assembly and integrated access systems and methods of using the same

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019161825A1 (fr) * 2018-02-21 2019-08-29 Wilhelm Layher Verwaltungs-Gmbh Adaptateur de raccord de montant
AU2019224274B2 (en) * 2018-02-21 2021-10-21 Wilhelm Layher Verwaltungs-Gmbh Post connection adapter
US11970872B2 (en) 2018-02-21 2024-04-30 Wilhelm Layher Verwaltungs-Gmbh Post connection adapter
WO2023099334A1 (fr) * 2021-12-01 2023-06-08 Peri Se Pièce d'assemblage pour assembler des éléments d'échafaudage
WO2023117343A1 (fr) * 2021-12-22 2023-06-29 Peri Se Élément de réglage de longueur pour un composant d'échafaudage, composant d'échafaudage, échafaudage et utilisation d'un élément de réglage de longueur dans un échafaudage

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EP3147424B1 (fr) 2020-06-03
EP3147424A3 (fr) 2017-04-05

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