EP3147424B1 - 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
EP3147424B1
EP3147424B1 EP16001940.2A EP16001940A EP3147424B1 EP 3147424 B1 EP3147424 B1 EP 3147424B1 EP 16001940 A EP16001940 A EP 16001940A EP 3147424 B1 EP3147424 B1 EP 3147424B1
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EP
European Patent Office
Prior art keywords
connection
lattice
lattice support
longitudinal direction
flange
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Application number
EP16001940.2A
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German (de)
English (en)
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EP3147424A3 (fr
EP3147424A2 (fr
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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 for compatible assembly within a modular scaffolding system, which has a grid dimension with a truss-like support structure, in particular made of metal or aluminum, with a longitudinally extending upper flange, a longitudinally extending lower flange, vertical posts, their opposite end regions to the upper flange and Connected to the lower flange, in particular welded on, are diagonals, which are connected, in particular welded, to the upper flange and to the lower flange between the vertical posts at opposite end regions, the upper flange and / or the lower flange are open to the outside on the top or bottom, has a continuous undercut groove, via which further components of a work and protective scaffold can be connected in any position in the longitudinal direction by means of connection units.
  • the present invention further relates to a modular lattice girder system consisting of lattice girders that are used in a known work and protective scaffold that can be used universally in an existing work and protective scaffold.
  • Lattice girders or lattice girder systems are used for large spans, for example with scaffolding, roofs, podiums or as a substructure or as a suspension for hanging scaffolding or as roof structures for keder roofs.
  • Standard lattice girders are for example from the catalog " LAYHER SCAFFOLDING ACCESSORIES, page 8, edition 04.2014 "Such lattice girders are made of steel or aluminum and are mainly used for stiffening scaffolding or for short bridges.
  • Upper and lower chords are generally made from round tubes without a groove on the market.
  • the diagonal and vertical struts are mostly made of rectangular profiles, round tube profiles or oval profiles that do not have any connection units.
  • bracing or lateral stabilization takes place via pipes that are connected with couplings.
  • the installation of accessories is only possible if the component to be connected has a coupling connection. Corners or complex structures cannot be created with this It is not possible to install such lattice girders in the middle of a scaffold bay, since the couplings that are then absolutely necessary would have to be installed outside the scaffold bay.
  • lattice girders made of aluminum which, in addition to an upper chord, a lower chord and vertical posts, also contain intersecting diagonals.
  • Such lattice girders are mainly used in suspended scaffolding and long bridges.
  • the upper and lower straps are designed without a groove and the diagonal and vertical struts are made of round tubes that have no connection units.
  • the bracing of the lattice girders with each other within the supporting structure is carried out via pipes and couplings or via components with a snap claw. The installation of accessories is only possible if this component has a coupling connection.
  • a steel lattice girder is used primarily in roof structures or for long bridges.
  • the top and bottom chords are designed without a groove and the diagonal struts are made as a rectangular profile. It is not possible to connect accessories with a coupling connection due to this type of profile.
  • the vertical struts consist of a round tube with perforated disks. The bracing is carried out using transoms and diagonals. Corners or complex spatial structures cannot be built with such a lattice girder construction. Roofs can be built on the basis of inclined lattice girders of this type.
  • a lattice girder made of steel is known, which is only used for roof constructions.
  • the upper and lower chord are made of round tubes without a groove.
  • the diagonal and vertical struts are made of round tube profiles that have no molded connection units.
  • the lattice girders are stiffened with each other Via pipes and couplings or components with a snap-in claw. The installation of accessory components is only possible if this component has a coupling connection. Corners or complex structures cannot be built with it.
  • the US 5 240 089 A discloses a lattice girder with an upper chord, a lower chord, vertical posts and diagonals.
  • the upper chord and the lower chord have a continuous undercut groove that is open to the outside on the top and bottom.
  • the verticals and diagonals are screwed to the upper or lower flange via gusset plates.
  • the lattice girders are each connected in their end region between vertical supports arranged on spindles.
  • the supports protrude above the height of the lattice girder, with a support structure consisting of longitudinal and transverse girders for receiving a covering being provided on the upper side of the supports.
  • the EP 1 111 151 A2 discloses a lattice girder structure with two lattice girders, each arranged in parallel support planes, each having an upper chord and a lower chord, which are connected to one another via vertical bars.
  • the two lattice girders are connected to each other via spatially crossing diagonals.
  • the top chords and the bottom chords each have a continuous groove that is open at the top and bottom.
  • the DE 199 38 970 A1 discloses a support, in particular for trade fair and shop construction, which is designed as a lattice support with an upper chord, a lower chord, vertical, rising and falling diagonals.
  • the top flange and the bottom flange have a groove.
  • the WO 2015/020662 A1 discloses a lattice girder with an upper chord, a lower chord, end verticals and rising and falling diagonals between the upper chord and lower chord.
  • the upper chord is made up of several parts and consists of two parallel spaced L-profiles, on which a flat rectangular profile is arranged, on the top of which a profile bar element with an undercut groove is connected. Additional connection elements can be connected via slot nuts, via which additional components can be connected to the lattice girder.
  • the present invention is based on the object or the technical problem of providing a lattice girder and a modular lattice girder system which can be produced simply and inexpensively, universally and variably within a known work and protective structure, in particular the Layher-Allround modular scaffolding, can be used, is compatible with this scaffolding system, has a high load capacity, can be used within an existing modular scaffolding to scaffold a wide 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 refinements and developments of the lattice girder according to the invention are given by claims 1 to 11 and 12 which are directly or indirectly dependent on independent claim 1.
  • the modular lattice girder system according to the invention is given by the features of claim 12.
  • Advantageous refinements and developments of this modular lattice girder system are given by claims 13 to 20, which are directly or indirectly dependent on claim 12.
  • a scaffold construction according to the invention consisting of the components of a modular scaffold 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 claim 21.
  • the lattice girder according to the invention is accordingly characterized in that the lattice girder has at least one, in particular several, vertical posts with a plurality of connection elements for connecting further scaffolding components, the lattice girder has one in the end region of the lattice girder or two in the opposite end regions of the lattice girder Vertical post without connecting elements, the distance in the longitudinal direction of the lattice girder between a vertical post with connecting elements and the front end of the lattice girder corresponds to half a grid dimension of the module frame.
  • the upper chord / lower chord is designed as a hollow profile, in particular a tubular and rectangular profile.
  • the undercut groove is polygonal, in particular rectangular or dovetail-shaped or part-circular with respect to its inner circumferential contour.
  • the compatibility with existing modular scaffolding, within which the lattice girder according to the invention can be installed, is increased according to the invention in that the distance in the longitudinal direction between vertical posts with connecting elements, that is to say the grid dimension, corresponds to half, single or multiple of a grid dimension of a module scaffolding.
  • variable or different length of the lattice girder to be used in each individual case can be implemented in a particularly simple manner in that, between two vertical posts in the longitudinal direction, one or more times in each case one diagonally rising from the lower chord to the upper chord and then one from the upper chord to the lower chord falling diagonal 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 and lower chord.
  • an advantageous embodiment is characterized in that a continuous notch open to the outside is formed in the center line (s) of the upper chord / lower chord.
  • an end area lattice girder to be formed, which can be connected to adjoining lattice girders, this end region lattice girder being characterized in that the lattice girder has only one post with connecting elements and one post without connecting elements and a diagonal running between the posts.
  • 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 molded-in keder profile recesses arranged laterally, in particular two opposite, laterally arranged, in particular in the upper and lower side edge area .
  • keder roof tarpaulins can be connected in a simple manner, whereby the arrangement of the keder profile recesses in the upper and lower side edge area of the upper chord allows offset keder roof tarpaulins to be connected, so that on the one hand they are offset in height and on the other hand with an overlap in Longitudinal direction to simplify handling in manageable lengths can be retracted.
  • the offset provides ventilation so that, for example, condensation can be counteracted.
  • a particularly advantageous embodiment which enables the formation of curved trusses or trusses supporting structures, is characterized in that the upper flange and the lower flange have a locally limited / limited kink / curvature in a convex or concave shape at positions opposite in the vertical direction.
  • a particularly preferred embodiment is characterized in that the lattice girder acts as a knot lattice girder between incoming and outgoing Lattice girders are formed, the knot lattice girder enables incoming and outgoing lattice girders to be connected in a plan view, in each case at a predetermined angle to one another, in particular at an angle of 90 °, the knot lattice carrier having a central connection post, which is seen in a plan view and in the node, which in particular has connection elements and, in each connection direction, starting from the central connection post and the top flange, has a, in particular falling, diagonal, which is connected to the bottom flange and each has a vertical post in the free end region.
  • a diagonal strut is connected, in particular welded in, as a stiffening element between the upper and lower chords arranged in the longitudinal and transverse directions.
  • a particularly advantageous embodiment is characterized in that the node lattice girder enables the connection of a first and second lattice girder element at a right angle, that is to say as L- Corner connection means is formed or the knot lattice girder enables the connection of two lattice girders running through in the longitudinal direction and one lattice girder running in the transverse direction, i.e.
  • knot lattice girder enables the connection of two lattice girders going through in the longitudinal direction and two cross girders going through in the transverse direction, that is is designed as an intersection connecting means.
  • the modular lattice girder system according to the invention is characterized by modular units that can be combined with one another and that are universally compatible with a existing modular scaffolding system or the construction of a universally usable support structure enable at least two or more lattice girders and / or knot lattice girders aligned in the longitudinal direction and / or in the transverse direction according to one or more of the preceding claims, the end regions of adjoining top chords and adjoining bottom chords each by means of belt connector devices are releasably connected.
  • the belt connector devices have an outer contour / inner contour in such a way that they can be positively inserted into the inner contour of the upper and lower belts or onto the outer contour
  • the upper and lower straps are designed to be slidable and have connection recesses which, when pushed in / pushed on, align with the coupling recesses of the upper straps or lower straps and fixing adjacent upper straps / lower straps by inserting bolt units or screw units into the connecting recesses and the coupling recesses.
  • the belt connector device which can be pushed in in the longitudinal direction is designed as a hollow profile and the belt connector device which can be pushed in in the vertical direction is essentially designed as a U-profile, which connects upper and lower belts adjoining 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 scaffolding 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 like that are designed such that further components, in particular scaffolding components, can be connected.
  • connection device which ensures economical manufacture and particularly simple handling during assembly, is characterized in that the connection device has a bearing plate with bearing plate recesses, via which sliding nuts or hammer head units are used to connect to the groove of the upper chords / lower chords and connection units are connected, in particular welded, to the bearing plate, which enable the connection of further components.
  • connection units as a hollow profile, in particular a tubular profile, with or without a connecting element or with or without a pipe connector with a stop or as a hook or eyelet unit are formed.
  • a particularly advantageous embodiment which ensures the connection of scaffolding floors or keder tarpaulins in a particularly simple manner, is characterized in that the connecting device is designed as a longitudinally extending connecting profile rod device which is connected on the one hand in the groove of the upper / lower flange and on the other hand Has connection options for connecting scaffolding floors or for connecting keder tarpaulin edge profiles.
  • connection device has two connection profile rod devices arranged one on top of the other in such a way that at least two connection units for keder tarpaulin edge profiles are offset in terms of height, so that Keder tarpaulin edge profiles offset in the longitudinal direction with overlap and offset in height can be connected.
  • a particularly preferred embodiment of the lattice girder system according to the invention which can safely and reliably cover large areas with large spans with a high load capacity, is characterized in accordance with the invention in that at least two lattice girders spaced parallel in the transverse direction or at least two spaced apart in the transverse direction each of several coupled in the longitudinal direction Lattice girders existing lattice girder device is present, wherein between the lattice girders or the lattice girder device there is a stiffening construction consisting of crossbars and transverse diagonals, the end area of which is connected to the connecting elements of the vertical posts, so that a truss structure in the plane of the upper and lower chords and in the plane in the transverse direction of adjacent vertical posts.
  • a scaffold construction according to the invention consisting of the components of a work and protective scaffold such as vertical, horizontal and / or diagonal scaffold elements and scaffold coverings is characterized according to a particularly advantageous further development in that the scaffold posts of the work and protective scaffold on top chords and / or bottom chords of lattice girders after one or more of claims 1 to 14 or to a lattice girder system according to one or more of claims 15 to 23, in particular such that the vertical support elements of the working and Protective scaffold are aligned with the vertical posts of the lattice girders 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
  • large spans can be implemented in the case of scaffolding, roofs with a large span can be created or highly loaded podiums can be created.
  • previously different systems were required for these different applications. Due to the compatibility according to the invention with an existing modular scaffolding system, in particular the all-round scaffolding system from Layher, compliance with its system dimensions is guaranteed and thus enables simple and quick installation without difficulty. Thanks to specially developed modular accessory components such as belt connector devices and connection devices that can be easily connected in the groove of the upper / lower belt, variable use within an existing module frame is possible.
  • high-load-bearing components can be installed in a simple manner, which reliably remove large spans and high loads.
  • the lattice girder system according to the invention is particularly distinguished by the fact that the upper and lower chords of the individual lattice girders consist of an extruded aluminum profile with an integrated groove, according to a preferred embodiment.
  • the extruded aluminum profile is designed as a round tube profile.
  • a profile is provided for the upper and lower chord, which is available as a rectangular extruded profile with an integrated groove and optionally with keder tarpaulin inserts.
  • the lattice girder system in scaffolding as a surface scaffold, as a heavy-duty substructure for podiums, as Roof construction for large spans, in the general event area or for general bridging can be used.
  • the vertical posts with connection elements (perforated disks) at a distance from the system dimension of an existing module scaffold ensure that within the system dimension, including the surrounding components of a module scaffold, construction can continue with the same system dimension.
  • the connection elements on the vertical posts ensure that several parallel spaced lattice girders can be connected to each other to form a load-bearing structure by means of crossbars and cross-diagonals in order to provide a flat support structure even for large spans.
  • Modular additional components which can be connected to the upper and / or lower flange by means of slot nuts or hammer head units via connection devices, offer numerous application options for integrating the lattice girder or the lattice girder system within an existing modular framework.
  • Complex structures of a lattice girder system are made possible by the formation of special knot lattice girders, which allow incoming and outgoing lattice girders to be connected in the longitudinal and transverse directions in a simple manner, depending on the given geometry.
  • 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 straps is designed such that the ratio of the width of the groove to the outer diameter of the strap is less than 0.4, in particular is in the range between 0.3 and 0.4.
  • Fig. 1 is shown in cross section a first embodiment of a top chord 20.1 of a lattice girder, which is designed as a tubular profile, in particular as an extruded aluminum profile.
  • the upper flange 20.1 has a diameter B1 of 60.3 mm and a wall thickness of 6 mm.
  • an upwardly open, undercut, rectangular, continuous groove 30 in the belt length direction is formed in the cross-sectional shape, which in the exemplary embodiment has an inner groove width of 22.5 mm.
  • a continuous flattening 64 is present on the top in both edge regions of the groove 30. This flattening 64 serves as a support for connection devices, which are described below.
  • a relatively small notch 32 is provided on both sides on the outer wall of the tubular profile and serves as an adjustment aid for making any bores. Such a notch 32 is also present in the middle of the groove base of the groove 30.
  • Coupling recesses 36 are provided on both sides at the same height level, which, using belt connector devices described below, serve to couple adjacent abutting upper chords 20.1.
  • a lattice girder 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 also has a lower flange 22.1, which is mirror-symmetrical to the center line, that is to say has a groove 30 which is open at the bottom, and which is identical in cross-sectional dimensions to the upper flange 20.1.
  • FIG. 2 A second exemplary embodiment of an upper belt 20.2 for a lattice girder 10 is shown, which is also designed as an extruded aluminum profile, the cross-sectional shape being designed as a rectangular tube, the outer diameter B1 of which is 100 mm in the exemplary embodiment.
  • the cross-sectional shape being designed as a rectangular tube, the outer diameter B1 of which is 100 mm in the exemplary embodiment.
  • keder profile recesses 34 are formed on the upper flange 20.2 on both sides in the upper and lower edge area, which enable the connection of a keder profile with a tarpaulin.
  • the ratio B2 (groove width) to B1 (outer diameter) is in the range between 0.3 and 0.4.
  • the second exemplary embodiment of the upper flange 20.2 as a rectangular tube this means that a standardized groove 30 is possible.
  • the chosen dimensions of the groove are concerned 30 not by standardized dimensions. The dimensions are adapted to the round tube cross-section. A standardized groove would be larger, which would reduce the available internal cross-section for connecting belt connector devices, which would drastically reduce the load-bearing capacity of the connection.
  • a first exemplary embodiment of a lattice girder 10.1 is shown in perspective, this lattice girder 10.1 representing a module unit for a lattice girder system which can be combined with further lattice girders (module units) described below.
  • the longitudinal direction is indicated by L, the transverse direction by Q and the height direction by H.
  • the top chord 20.1 is arranged in the longitudinal direction L with its undercut groove 30 open at the top.
  • the lower flange 22.1 is arranged with the same cross section and a groove 30 pointing downwards.
  • a vertical post 24.2 formed as a round tube, the end areas of which are welded on the upper side to the upper flange 20.1 and on the underside to the lower flange 22.1.
  • Another vertical post 24.2 is welded in the middle between the upper chord 20.1 and lower chord 22.1 and has three connecting elements 40 spaced apart in the vertical direction H, which are designed as rosettes (perforated disks) for connecting further components, in particular scaffold components via a wedge head connection, which is used, for example, in the known Layher All-round scaffolding system can be used.
  • the distance between the connection elements 40 in the height direction H bears R / 2, where R is a module grid dimension of a module frame, in particular of the known Layher all-round module frame.
  • a longitudinally falling diagonal 26.1 is welded between the upper chord 20.1 and lower chord 22.1. Then between the vertical post 24.2 and the in Fig. 3 right vertical post 24.2 welded a rising diagonal 26.2 to the upper flange 20.1 or 22.1 lower flange.
  • the length of the upper chord 20.1 or lower chord 22.1 corresponds to the grid dimension R, the middle vertical post 24.1 being arranged in the middle (grid dimension R / 2) of the scaffold girder 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 arranged symmetrically to the center with connecting elements 40, the spacing of which in the longitudinal direction is R.
  • the left and right end region of the lattice girder 10.2 according to Fig. 4 from the left or right vertical post 24.2 corresponds to the design 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 area 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 adhered to 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 the lattice girder is designed longer around the framework R with a rising diagonal 26.2, a vertical post 24.1 and a falling diagonal 26.1.
  • the same components have 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 in the end area without connection elements.
  • a vertical post 24.1 with connection elements in the end area if necessary.
  • the lattice girder 10.6 has in Fig. 8 left end region a vertical post 24.1 with connection elements 40 and in its in Fig. 8 right end area on a vertical post 24.2 without connection elements 40.
  • a falling diagonal 26.1 is welded in between the vertical posts 24.1, 24.2.
  • the distance of the in Fig. 8 left vertical post 24.1 to the right end face of the upper chord 20.1 or lower chord 22.1 is R / 2, so that when the lattice girder 10.6 is coupled to one of the lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, the spacing of the vertical posts 24.1 with connecting elements 40 in turn is the grid dimension R results.
  • the lattice girder 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, round tube profiles with an outer diameter of 48.3 mm and a wall thickness of 4 mm are preferably used for the vertical posts 24.1, 24.2 and the diagonals 26.1, 26.2 are welded to the top flange 20.1 and bottom flange 22.1.
  • FIG. 9 to 12 Exemplary embodiments are shown of how individual lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, arranged one behind the other in the longitudinal direction L, are coupled to one another in a statically load-bearing manner.
  • the lattice girders 10 are coupled to one another by the coupling of abutting upper chords 20.1, 20.2 and abutting lower chords 22.1, 22.2 by means of belt connector devices 42.1, 42.2, which are described below.
  • a first exemplary embodiment of a belt connector device 42.1 is designed as a full profile, in particular a full aluminum profile, and has an outer circumferential contour which essentially corresponds to the inner circumferential contour of the upper chord 20.1 or lower chord 22.1 or is slightly smaller, so that the Belt connector device 42 can be positively inserted in the interior of the tubular profile of a belt 20, 22 in the end region.
  • Each upper chord 20.1, 20.2 and each lower chord 22.1, 22.2 each have three coupling recesses 36 arranged one behind the other in the longitudinal direction L in their end region.
  • the belt connector device 42 also has three continuous connection recesses 44 - two each symmetrical to the center - arranged one behind the other in the longitudinal direction L - so that there are a total of six connection recesses 44 on the belt connector device 42.
  • the belt connector device 42 has a recess 68 on the upper side, the inner contour of which essentially corresponds to the inner outer contour of the groove 30.
  • Fig. 10 the coupling state is shown in an explosive perspective.
  • the belt connector device 42 is pushed into the inner cavity of an upper chord 20.1 until the connecting recesses 44 are aligned in the transverse direction Q with the coupling recesses 36 of the upper chord 20.1.
  • a bolt 72 can be inserted from the outside, which is secured on the opposite side by means of a split pin 74.
  • the same procedure is followed on the opposite top chord 20.1 of the next lattice girder 10.1, ...
  • the same procedure is also carried out for the lower flange 22.1, 22.2.
  • a belt connector device 42 is used, the outer circumferential contour of which is the inner circumferential contour of the rectangular hollow profile essentially corresponds. This embodiment is not shown in the figures.
  • the Fig. 11 shows a further belt connector device 42.1, which is designed as a U-profile and in the flanges of the U-profile has two three connection recesses 44 spaced one behind the other in the longitudinal direction L and has two elongated hole recesses 76 in the web area, also running in the longitudinal direction L, which are connected in the Align condition with the opening slot of groove 30.
  • Fig. 12 shows the coupled state of a lower flange 22.1.
  • the incoming and outgoing upper belts 20.1, 20.2 or lower belts 22.1, 22.2 can be inserted in the height direction H into the U-profile-shaped belt connector device 42.2 and then via screw units 78, which pass through the coupling recess 36 of the belts 20, 22 and the connection recesses 44 the belt connector device 42.2 are connected.
  • the diagonals and vertical bars connected to the lower flange 22.1 are not shown.
  • the U-shaped belt connector device 42.1 sometimes simplifies the assembly process when coupling scaffold girders, since in contrast to the positive insertion of the straps 20, 22 onto the belt connector device 42.1, the straps 20, 22 can be easily threaded in from above or below.
  • the lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, 10.6 are especially designed so that they can be combined and used variably with an existing modular scaffolding, in particular the Layher all-round scaffolding system.
  • additional modular units are available as part of the modular scaffold lattice girder system Provided that allow easy connection while ensuring high load capacities.
  • connection device 46.1 has on the underside a rectangular bearing plate 48, which has two opposite bearing plate recesses 50 in its end regions in the longitudinal direction L, which make it possible for the bearing plate 48 to be moved over in Fig. 13 T-nut units or hammer-head screw units, not shown, can be connected in the groove 30 of a belt 20, 22.
  • a tubular connection unit 52.1 is connected, in particular welded, to the top of the bearing plate 48, which has a connection element 40 which is designed as a rosette or perforated disk and ensures a compatible connection of components of a module frame.
  • the distance of the connecting element 40 to the lower level of the bearing plate 48 is indicated by A1.
  • a pipe connector 56 which has a smaller diameter than the connection unit 52.1, is formed on the upper side of the connection unit 52.1, so that a stop 58 is formed.
  • the pipe connector 56 has an outer diameter which corresponds to the inner diameter of a profile element of a modular scaffold, in particular a scaffold post, so that a scaffold post can be plugged onto the pipe connector 56 in a simple manner until its end face strikes the stop 58.
  • connection device 46.2 In Fig. 14 A second exemplary embodiment of a connection device 46.2 is shown, which basically has the same structure as the connection device 46.1 according to Fig. 13 .
  • the same components have the same reference numerals and are not explained again.
  • the difference between the connection device 46.2 and the connection device 46.1 is that the connection unit 52.2 has a greater length in the height direction H, that is to say the connection element 40 has a distance A2 from the underside of the bearing plate 48 which is greater than the distance A1 in the connection device 46.1 according to Fig. 13 .
  • FIG. 15 A third exemplary embodiment of a connection device 46.3 is shown, which likewise has a bearing plate 48 with recesses 50, a simple round tube 60 being connected on the upper side in the height direction H, in particular being welded on. Further scaffolding components can be plugged in or plugged onto this scaffold tube 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 bearing plate recesses 50, the upper side of the connection unit 52.4 being designed as a connecting eye 62 which is connected to the bearing plate 48, in particular welded on.
  • a connection device 46.4 for example, a rope construction can be connected as anchoring, or the connection eyelet 62 serves as a temporary connection option for a lifting tool during assembly.
  • Fig. 17 shows a section of a lattice girder 10.5 with its top flange 20.1 and its bottom flange 22.1, connection units 46.1 and 46.2 being connected to the top flange 20.1 and connection units 46.3 to the bottom flange 22.1.
  • connection elements 40 of the vertical posts 24.1 are connected to one another in the vertical direction H in a grid dimension R / 2 at the vertical posts 24.1.
  • the spacing 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. This ensures system compatibility with regard to the grid dimension of a module frame 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 there is a grid dimension R / 4, so that compatibility with an adjacent module frame is also ensured here.
  • connection devices 46.1, 46.2, 46.3 shown 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 chord 20.1 or in the lower chord 22.1, however, it is also possible to connect the connecting devices 46 offset to the vertical posts 24.1, depending on the geometry to be maintained with regard to the component to be scaffolded or the arrangement of surrounding scaffolding components.
  • Fig. 18 shows a lattice girder system that is designed as a surface system and has two lattice girder devices spaced in parallel in the transverse direction Q, which are each formed from lattice girders 10.6, 10.3 and 10.6 combined with one another in the longitudinal direction L. Between the parallel lattice girder structures, a stiffening structure is formed as a framework, consisting of upper and lower crossbeams 14 and transverse diagonals 16.
  • each lattice girder device is connected by crossbeams each connected to the upper and lower connecting element 40 of the vertical post 24.1 and in the lower connecting element 40 of the vertical post, connected crossbeams with a transverse diagonal extending therebetween formed a stiffening truss structure in the transverse direction Q.
  • the crossbars 14 and diagonals 16 are components from a modular scaffolding system, such as the Layher all-round scaffolding system, which is connected to the connection elements 40 of the vertical posts 24.1 using the known connection technology.
  • the lattice girder system shown basically has the same structure as the lattice girder system according to Fig. 18 , but with the difference that the stiffening structure is designed by crossbars 14 and diagonals 16 such that the belts are held laterally only on every second vertical post 24.1, so that there is a kink length K2 that is twice as high as the grid dimension R.
  • the stiffening structure is designed by crossbars 14 and diagonals 16 such that the belts are held laterally only on every second vertical post 24.1, so that there is a kink length K2 that is twice as high as the grid dimension R.
  • FIGS Figures 21 , 22 and 23 are shown and which are designed as node grid support elements 12.1, 12.2, 12.3, wherein Fig. 20 shows a possible combination of the knot lattice girders 12.1, 12.2, 12.3 with the lattice girders 10.1, 10.2, 10.3, 10.4, 10.5, 10.6.
  • FIG. 22 A first knot lattice girder 12.1 is shown, which enables the connection of lattice girders 10 at a right angle to one another - seen in an L-shape in a plan view.
  • the knot lattice girder 12.1 is structurally similar to the lattice girder 10.6 according to Fig. 8 , with the difference that a central connecting post 38 with Connection elements 40 is present, to which the upper chords 20.1, 20.2 and lower chords 22.1, 22.2 are welded together at an angle of 90 °.
  • a vertical post 24 is connected, in particular welded, between the upper chord 20.1 and the lower chord 22.1 at a distance from the central connecting post 38, a diagonal 26.1 between the upper chord 38 and the vertical post 24 between the upper chord 20.1 and Lower flange 22.1 is welded in.
  • the distance between the central connection post 38 and the end face of the belts 20, 22 in the longitudinal direction L and in the transverse direction Q is R / 2, so that when connecting further lattice girders 10, the grid dimension R of the module frame, 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 between the upper chord 20.1 in the longitudinal direction L and the upper chord 20.1 in the transverse direction Q and the lower chord 22.1 in the longitudinal direction L and the lower chord 22.1 in the transverse direction Q, which additionally braces the knot lattice girders 12.1.
  • the knot lattice girder 12.1 thus provides an L-shaped connecting element which enables lattice girders 10 to be connected 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 exemplary embodiment of a knot lattice girder 12.2 which in principle has the same structure as the knot lattice girder 12.1 according to Fig. 22 , but with the difference that, seen in a plan view, a T-shaped connecting element is provided which enables the connection of two lattice girders 10 running in the longitudinal direction L and one lattice girder 10 running perpendicularly thereto in the transverse direction Q.
  • Fig. 21 shows finally a third embodiment of a truss lattice girder 12.3 with a structure similar in principle to the lattice girder 12.1, 12.2 according to the Figures 22 and 23 with the difference that, seen in a plan view, a knot lattice girder 12.3 is provided, which represents a crossing connecting element, with the two lattice girders 10 running in the longitudinal direction L and two lattice girders 10 running in the transverse direction Q, in each case at an angle of 90 ° between the transverse direction Q and longitudinal direction L can be connected.
  • Fig. 20 shows schematically an embodiment of a surface support structure using lattice girders 10 and knot lattice girders 12, which can be variably adapted to the respective geometric conditions, the grid dimension R for connecting further components of a modular scaffold is always guaranteed.
  • a further exemplary embodiment of a lattice girder 10.22 is shown schematically, the upper flange 20.1 and lower flange 22.1 of a kink K1, K2 in the longitudinal direction L or as in FIG Fig. 25 shown has a curvature K1, K2 in the center. This kink or curvature formation in the central region is possible for practically every lattice girder 10.
  • Fig. 29 shows 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 scaffolding, in particular a Layher all-round scaffolding system.
  • the lattice girder system has two lattice girder devices spaced apart in parallel in the transverse direction Q, with lattice girders 10 combined with one another, the spacing in the transverse direction Q of which corresponds to the distance dimension of the module frame in the transverse direction Q.
  • the modular scaffolding consists of vertical posts 80, crossbars 82, longitudinal bars 84, transverse diagonals 86 and longitudinal diagonals 88.
  • This modular scaffolding which is known as the Layher all-round scaffolding, can be used flexibly.
  • the lattice girder system according to the invention new possibilities open up for equipping a wide variety of building geometries and bridging spans that are not possible with the normal scaffolding system.
  • the lattice girder construction is arranged such that the vertical posts 24.1 of the lattice girders are aligned in the height direction H with the vertical posts 80 of the module scaffold connected on the top and bottom and, moreover, there is system conformity in the area of the lattice girders 10 with respect to the grid dimension R of the module scaffold.
  • the vertical supports 80 of the surrounding module frame are connected to the lattice girders 10 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 and 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 into an existing modular scaffold with a basically similar structure, but with the difference that the vertical posts 80 are not aligned with the vertical posts 24.1 of the lattice girders in the vertical direction, that is to say in the longitudinal direction L an offset V1 (scaffold on the top ) or an offset V2 (scaffold on the underside).
  • the connection devices 46 for connecting the surrounding ones Scaffold components can be placed anywhere as a result of the groove 30 of the straps 20, 22 extending in the longitudinal direction L.
  • the geometry of the arrangement between the module frame and lattice girder system can be easily adapted to the respective geometric requirements on site.
  • connection devices are designed accordingly.
  • FIG. 30 and 31 the use of the lattice girder 10 or a lattice girder system to form a flat podium is shown schematically.
  • the surface structure corresponds to that in the exemplary embodiment Fig. 19 surface structure shown consisting of lattice girders 10 and a truss-like stiffening structure with crossbars 14 and cross-diagonals 16.
  • a connecting device 46.5 is used here, which is designed as a connecting profile rod 54 which is continuous in the longitudinal direction L and is in the form of a U-profile which is open at the top , in which the flooring 90 via a suspension claw 92 (see Fig. 31 ) can be attached.
  • a lift-off protection profile 94 is connected, which prevents the floor coverings 90 from lifting off.
  • a spacing profile 90 which is designed as a rectangular hollow profile, is additionally arranged below the U-shaped connecting profile rod 54.1.
  • the connecting profile rod 54 and the spacer profile 96 are connected to the groove 30 of the upper flange 20.1 via a groove unit or a hammer head unit.
  • connection device 46.6 which enables the connection of a keder roof tarpaulin 100 to the lattice girder 10 or to the lattice girder system.
  • connection device 46.6 has a connection profile rod 54.2 which is continuous in the longitudinal direction L and which, according to 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, there is a connection recess 116 in the upper flange and in the lower flange of the connecting profile rod 54.2, through which a sliding block unit or a hammer head unit can be passed for connection to the groove 30 of a belt 20 of a lattice girder.
  • FIG. 34 Another variant exists according to the Figures 34 and 35 in that there is a spacing profile 110 with aligned connecting recesses 116 below the connecting profile rod 54.2, which is designed as a rectangular hollow profile.
  • the spacer hollow profile 110 has the same length as the connecting profile rod 54.2.
  • the connecting profile rod 54.2 has a protrusion U in the longitudinal direction L compared to the spacer profile 110, that is to say by means of such a construction a roof protrusion of a keder roof or an overlap of adjoining keder tarpaulins 100 can be implemented without problems (see Fig. 32 ).
  • connection device 46.6 for connecting a keder tarpaulin 100 via a keder tarpaulin edge profile 102 arranged in a keder profile recess 104 is shown in FIG Fig. 33 combined with Fig. 32 shown.
  • FIG. 32 The construction shown is first of all a connecting profile rod 54.2 on the upper flange 20.1 Fig. 38 respectively Fig. 39 connected and one side of a keder tarpaulin 100 drawn through a keder tarpaulin edge profile 102 in the keder profile recess 104.
  • a connecting device 46.6 which in the Figures 36 and 37 is shown, that is, there is a connection profile rod 54.2 which has a height offset HK in the starting area of the lattice girder 10 compared to the connecting profile bar 54.2 and at the same time allows a protrusion ÜK of the muting keder tarpaulins 100.
  • Such a construction makes it possible to limit the keder tarpaulin 100 in length in order to reduce its weight and to simplify handling during assembly. At the same time, the ÜK overhang ensures tightness against the ingress of rainwater.
  • the height offset HK of adjacent keder tarpaulins 100 enables ventilation which counteracts the formation of condensation.

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  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
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  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Claims (22)

  1. Support en treillis (10.1, 10.2, 10.3, 10.4, 10.5, 10.6) comprenant une construction porteuse de type charpente, en particulier en métal ou en aluminium, comprenant
    - une membrure supérieure (20.1, 20.2) s'étendant dans la direction longitudinale (L),
    - une membrure inférieure (22.1, 22.2) s'étendant dans la direction longitudinale (L),
    - des montants verticaux (24.1, 24.2) dont les régions d'extrémité opposées sont raccordées, notamment soudées, à la membrure supérieure (20.1, 20.2) et à la membrure inférieure (22.1, 22.2),
    dans lequel
    - la membrure supérieure (20.1, 20.2) et/ou la membrure inférieure (22.1, 22.2) présente/présentent une rainure (30) en contre-dépouille, continue, ouverte vers l'extérieur du côté supérieur ou du côté inférieur, par le biais de laquelle des composants supplémentaires, en particulier des composants de l'échafaudage modulaire, peuvent être raccordés au moyen d'unités de raccordement dans une position quelconque dans la direction longitudinale (L),
    caractérisé en ce que
    - le support en treillis (10.1, 10.2, 10.3, 10.4, 10.5, 10.6) présente au moins un ou deux ou plus de deux montants verticaux (24.1) avec des éléments de raccordement (40) pour le raccordement de composants supplémentaires, dont la distance dans la direction en hauteur (H), c'est-à-dire la direction longitudinale des montants verticaux (24.1), correspond à la moitié, la totalité ou un multiple de la dimension modulaire d'un échafaudage modulaire,
    -- le support en treillis (10.6) présentant seulement un montant vertical (24.1) avec des éléments de raccordement (40) et seulement un montant vertical (24.2) sans élément de raccordement (40) et seulement une diagonale s'étendant entre les montants verticaux (24.1, 24.2), la distance dans la direction longitudinale (L) du support en treillis (10.6) entre les montants verticaux (24.1) avec les éléments de raccordement et l'extrémité frontale du support en treillis (10.6) correspondant à la moitié d'une dimension modulaire (R) de l'échafaudage modulaire,
    ou
    -- le support en treillis (10.1) présentant seulement un montant vertical (24.1) avec des éléments de raccordements (40) et seulement deux montants verticaux (24.2) sans élément de raccordement (40) disposés dans les régions d'extrémité opposées du support en treillis (10.1) et seulement deux diagonales s'étendant entre les montants verticaux (24.1, 24.2), la distance dans la direction longitudinale (L) du support en treillis (10.6) entre les montants verticaux (24.1) avec les éléments de raccordement et l'extrémité frontale respective du support en treillis (10.6) correspondant à la moitié d'une dimension modulaire (R) de l'échafaudage modulaire,
    ou
    -- le support en treillis (10.2, 10.3, 10.4, 10.5) présentant des diagonales qui sont raccordées, en particulier soudées, à des régions d'extrémité opposées au niveau de la membrure supérieure (20.1, 20.2) et au niveau de la membrure inférieure (22.1, 22.2) entre les montants verticaux (24.1, 24.2), et deux ou plus de deux montants verticaux (24.1) avec des éléments de raccordement (40), un montant vertical (24.2) sans élément de raccordement (40) étant raccordé entre la membrure supérieure (20.1, 20.2) et la membrure inférieure (22.1, 22.2) dans la région d'extrémité opposée respective du support en treillis, et la distance dans la direction longitudinale (L) du support en treillis (10.6) entre le montant vertical (24.1) avec les éléments de raccordement et l'extrémité frontale respective du support en treillis (10.6) correspondant à la moitié d'une dimension modulaire (R) de l'échafaudage modulaire et la distance dans la direction longitudinale (L) entre des montants verticaux adjacents (24.1) avec des éléments de raccordement (40) correspondant à la dimension modulaire (R) de l'échafaudage modulaire.
  2. Support en treillis selon la revendication 1,
    caractérisé en ce que
    - la membrure supérieure (20.1, 20.2)/1a membrure inférieure (22.1, 22.2) sont réalisées sous forme de profilé creux, en particulier sous forme de profilé tubulaire ou rectangulaire.
  3. Support en treillis selon la revendication 1 ou 2,
    caractérisé en ce que
    - la rainure en contre-dépouille (30) présente un contour périphérique polygonal, en particulier rectangulaire ou en forme de queue d'aronde ou en forme de cercle partiel.
  4. Support en treillis selon l'une quelconque ou plusieurs des revendications précédentes,
    caractérisé en ce
    - qu'une diagonale (26.2) montant de la membrure inférieure (22.1, 22.2) vers la membrure supérieure (20.1, 20.2), et ensuite une diagonale (26.1) descendant de la membrure supérieure (20.1, 20.2) vers la membrure inférieure (22.1, 22.2), sont à chaque fois raccordées une fois ou plusieurs fois, à chaque fois les unes derrière les autres, entre deux montants verticaux (24.1), vu dans la direction longitudinale.
  5. Support en treillis selon l'une quelconque ou plusieurs des revendications précédentes,
    caractérisé en ce
    - qu'au moins un, en particulier plusieurs, évidements d'accouplement (36) espacés dans la direction longitudinale (L) sont prévus dans la région d'extrémité de la membrure supérieure (20.1, 20.2) et de la membrure inférieure (22.1, 22.2).
  6. Support en treillis selon l'une quelconque ou plusieurs des revendications précédentes,
    caractérisé en ce que
    - dans les axes médians de la membrure supérieure (20.1, 20.2)/de la membrure inférieure (22.1, 22.2) est formée au moins une entaille (32) continue, ouverte vers l'extérieur.
  7. Support en treillis selon l'une quelconque ou plusieurs des revendications précédentes,
    caractérisé en ce que
    - la membrure supérieure (20.1, 20.2)/la membrure inférieure (22,1, 22.2) présentent au moins un évidement formé pour recevoir un bourrelet, en particulier deux évidements opposés formés pour recevoir un bourrelet, disposé(s) latéralement, en particulier disposé(s) dans la région de bord latérale supérieure et inférieure.
  8. Support en treillis selon l'une quelconque ou plusieurs des revendications précédentes,
    caractérisé en ce que
    - la membrure supérieure (20.1, 20.2) et la membrure inférieure présentent, au niveau de positions opposées dans la direction en hauteur (H), une inflexion/une courbure (K1, K2) de forme convexe ou concave, limitée localement.
  9. Support en treillis selon la revendication 1,
    caractérisé en ce que
    - le support en treillis est réalisé sous forme de support en treillis de jonction (12.1, 12.2, 12.3) entre des supports en treillis entrants et sortants (10.1, 10.2, 10.3, 10.4, 10.5, 10.6), le support en treillis de jonction (12.1, 12.2, 12.3) permettant un raccordement de supports en treillis entrants et sortants (10.1, 10.2, 10.3, 10.4, 10.5), en vue de dessus, à chaque fois suivant un angle prédéfini les uns par rapport aux autres, en particulier suivant un angle de 90° (degrés), le support en treillis de jonction (12.1, 12.2, 12.3) présentant un montant de raccordement central (38) situé au niveau d'un point de jonction en vue de dessus, qui possède des éléments de raccordement (40) et qui présente une diagonale, en particulier descendante, dans chaque direction de raccordement (L, Q) à partir du montant de raccordement central (38) et de la membrure supérieure (20.1), qui est raccordée à la membrure inférieure (22.1), et qui possède, dans la région d'extrémité libre, à chaque fois un montant vertical (42) sans élément de raccordement, la distance entre les montants de raccordement (38) et l'extrémité frontale respective du support en treillis de jonction correspondant à la moitié d'une dimension modulaire (R) de l'échafaudage modulaire.
  10. Support en treillis selon la revendication 9,
    caractérisé en ce
    - qu'une entretoise diagonale (18) est raccordée, en particulier soudée, en tant qu'élément de renforcement, à chaque fois entre les membrures supérieures (20.1, 20.2) et la membrure inférieure (22.1, 22.2) disposées dans la direction longitudinale (L) et dans la direction transversale (Q).
  11. Support en treillis selon la revendication 9 ou 10,
    caractérisé en ce que
    - le support en treillis de jonction (12.1) permet le raccordement d'un premier et d'un deuxième élément de support en treillis à angle droit, c'est-à-dire est réalisé sous forme d'élément de raccord d'angle, ou le support en treillis de jonction (12.2) permet le raccordement de deux supports en treillis s'étendant dans la direction longitudinale (L) et d'un support en treillis s'étendant dans la direction transversale (Q) ou le support en treillis de jonction (12.3) permet le raccordement de deux supports en treillis s'étendant dans la direction longitudinale (L) et de deux supports en treillis s'étendant dans la direction transversale (Q).
  12. Système de support en treillis modulaire,
    caractérisé par
    - des unités modulaires pouvant être combinées de manière modulaire les unes avec les autres, qui permettent une compatibilité universelle avec un échafaudage modulaire existant ou qui permettent la construction d'une structure de support d'échafaudage modulaire pouvant être utilisée de manière universelle avec une dimension modulaire (R),
    - au moins deux ou plus de deux supports en treillis (10.1, 10.2, 10.3, 10.4, 10.5, 10.6) et/ou supports en treillis de jonction (12.1, 12.2, 12.3) disposés en alignement dans la direction longitudinale (L) et/ou dans la direction transversale (Q) selon l'une quelconque ou plusieurs des revendications précédentes,
    - les régions d'extrémité de membrures supérieures (20.1, 20.2) adjacentes les unes aux autres et de membrures inférieures (22.1, 22.2) adjacentes les unes aux autres étant à chaque fois connectées les unes aux autres de manière détachable au moyen de dispositifs de raccordement de membrures (42.1, 42.2).
  13. Système de support en treillis selon la revendication 12,
    caractérisé en ce que
    - les dispositifs de raccordement de membrures (42.1, 42.2) présentent un contour extérieur/un contour intérieur, de telle sorte que ceux-ci puissent être enfoncés par engagement par correspondance de formes dans le contour intérieur des membrures supérieures et inférieures (20, 22) ou puissent être poussés sur le contour extérieur des membrures supérieures et inférieures (20, 22), et présentent des évidements de raccordement (44) qui, dans l'état enfoncé/poussé, sont en alignement avec les évidements d'accouplement (36) de membrures supérieures, respectivement de membrures inférieures (20, 22), et une fixation de membrures supérieures (20)/de membrures inférieures (22) adjacentes les unes aux autres étant effectuée par enfoncement d'unités de boulon (72) ou d'unités de vis (78) dans les évidements de raccordement (44) et les évidements d'accouplement (36).
  14. Système de support en treillis selon la revendication 13,
    caractérisé en ce que
    - le dispositif de raccordement de membrures (42.1) pouvant être enfoncé dans la direction longitudinale (L) est réalisé sous forme de profilé massif et le dispositif de raccordement de membrures (42.2) pouvant être poussé dans la direction en hauteur (H) est réalisé essentiellement sous forme de profilé en U.
  15. Système de support en treillis selon la revendication 12, 13 ou 14,
    caractérisé en ce
    - qu'au moins un, en particulier plusieurs, dispositifs de raccordement (46.1, 46.2, 46.3, 46.4, 46.5, 46.6) est/sont raccordés par le biais de la rainure (30) aux membrures supérieures (20) et/ou aux membrures inférieures (22), lesquels sont réalisés de telle sorte que des composants supplémentaires, en particulier des composants d'échafaudage, puissent être raccordés.
  16. Système de support en treillis selon la revendication 15,
    caractérisé en ce que
    - le dispositif de raccordement (46.1) présente une plaque de palier (48) avec des évidements de plaque de palier (50), par le biais desquels a lieu un raccordement à la rainure (30) de la membrure supérieure (20)/de la membrure inférieure (22) au moyen de coulisseaux ou d'unités en tête de marteau, et des unités de raccordement (52.1, 52.2, 52.3, 52.4) sont raccordées, en particulier sont soudées, à la plaque de palier, lesquelles permettent le raccordement de composants supplémentaires.
  17. Système de support en treillis selon la revendication 15,
    caractérisé en ce que
    - les unités de raccordement (52.1, 52.2, 52.3, 52.4) sont réalisées sous forme de profilé creux, en particulier de profilé tubulaire, avec ou sans éléments de raccordement (40) ou avec ou sans raccord tubulaire (56) avec butée (58) ou sous forme d'unités à crochet ou à oeillet (62).
  18. Système de support en treillis selon la revendication 15,
    caractérisé en ce que
    - le dispositif de raccordement (46.5, 46.6) est réalisé sous forme de dispositif à barre profilée de raccordement (54.1, 54.2) s'étendant dans la direction longitudinale (L), qui est raccordé d'une part dans la rainure (20) de la membrure supérieure/inférieure (20, 22) et qui présente d'autre part des possibilités de raccordement pour le raccord de bases d'échafaudage ou pour le raccord de profilés de bord de bâches Keder.
  19. Système de support en treillis selon la revendication 18,
    caractérisé en ce que
    - le dispositif de raccordement (46.6) présente deux dispositifs à barre profilée de raccordement (54.2) disposés l'un au-dessus de l'autre dans la direction en hauteur de telle sorte que par rapport à la hauteur, au moins deux unités de raccordement pour des profilés de bord de bâches Keder (102) soient prévues de manière décalée en hauteur, de telle sorte que des profilés de bord de bâches Keder (102) puissent être raccordés de manière décalée dans la direction longitudinale (ÜK) avec chevauchement et de manière décalée dans la direction en hauteur (HK).
  20. Système de support en treillis selon l'une quelconque ou plusieurs des revendications 12 à 19,
    caractérisé en ce
    - qu'au moins deux supports en treillis (10) espacés parallèlement dans la direction transversale (Q) ou au moins deux dispositifs de support en treillis espacés dans la direction transversale (Q) constitués chacun de plusieurs supports en treillis (10) accouplés dans la direction longitudinale sont prévus, une construction de rigidification constituée de traverses (14) et de diagonales transversales (16) étant prévue entre les supports en treillis (10) ou les dispositifs de support en treillis, dont les régions d'extrémité sont à chaque fois raccordées aux éléments de raccordement (40) des montants verticaux (24.1), de telle sorte qu'une construction de type charpente soit formée dans le plan de membrures supérieures et inférieures (20, 22) et dans le plan de montants verticaux (24.1) adjacents dans la direction transversale (Q).
  21. Construction d'échafaudage constituée des composants d'un échafaudage modulaire avec une dimension modulaire (R), comme des éléments d'échafaudages verticaux, horizontaux et/ou diagonaux (80, 82, 84, 86, 88) et des revêtements d'échafaudage,
    caractérisée en ce que
    - les éléments de support verticaux (80) de l'échafaudage de travail et de protection sont raccordés à des membrures supérieures (20) et/ou des membrures inférieures (22) de supports en treillis (10) selon l'une quelconque ou plusieurs des revendications 1 à 11 et 22 ou à un système de support en treillis selon l'une quelconque ou plusieurs des revendications 12 à 20, en particulier de telle sorte que les éléments de support verticaux (80) de l'échafaudage de travail et de protection soient raccordés aux montants verticaux (24.1) des supports en treillis (10) en alignement ou avec un décalage (V1, V2) dans la direction longitudinale (L), et la construction d'échafaudage comprenant les supports en treillis (10) selon l'une quelconque ou plusieurs des revendications 1 à 11 et 22 ou le système de support en treillis selon l'une quelconque ou plusieurs des revendications 12 à 20.
  22. Support en treillis selon la revendication 1,
    caractérisé en ce que
    - la géométrie de la membrure supérieure/inférieure (20.1, 20.2 ; 22.1, 22.2) est réalisée de telle sorte que le rapport en nombre de la largeur (B2) de la rainure (30) au diamètre extérieur (B1) de la membrure (20, 22) soit inférieur à 0,4, en particulier soit compris dans une plage entre 0,3 et 0,4.
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

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

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Publication number Priority date Publication date Assignee Title
DE102018103898A1 (de) * 2018-02-21 2019-08-22 Wilhelm Layher Verwaltungs-Gmbh Stiel-Anschluss-Adapter
DE102021131584A1 (de) * 2021-12-01 2023-06-01 Peri Se Verbindungsbauteil zur Verbindung von Gerüstelementen
DE102021214921A1 (de) * 2021-12-22 2023-06-22 Peri Se Längenausgleichselement für ein Gerüstbauteil, Gerüstbauteil, Gerüst sowie Verwendung eines Längenausgleichselements in einem Gerüst

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Publication number Priority date Publication date Assignee Title
US5240089A (en) * 1991-07-17 1993-08-31 Speral Aluminum Inc. Modular scaffolding assembly
DE19938970A1 (de) * 1999-08-17 2001-03-08 Mba Design & Display Produkt G Träger, insbesondere für den Messe- und Ladenbau
ATE339563T1 (de) * 1999-12-24 2006-10-15 T2 Systems Ltd Strukturelemente und zugehörige teile
DE102009021424A1 (de) * 2009-05-14 2010-11-18 Wilhelm Layher Verwaltungs-Gmbh Rahmenförmiges Fachwerk
ES2644927T3 (es) * 2011-11-02 2017-12-01 Saferite Platforms Inc. Elementos de andamio horizontales y verticales pivotantes, y método para montar una plataforma de andamio desplazable
MX370400B (es) * 2013-08-08 2019-12-11 Safway Services Llc Montaje de integracion de estructuras de acceso y sistemas y metodos integrados de acceso para su utilizacion.

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EP3147424A3 (fr) 2017-04-05
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