EP3247842B1 - Formwork beam and formwork construction - Google Patents
Formwork beam and formwork construction Download PDFInfo
- Publication number
- EP3247842B1 EP3247842B1 EP16701280.6A EP16701280A EP3247842B1 EP 3247842 B1 EP3247842 B1 EP 3247842B1 EP 16701280 A EP16701280 A EP 16701280A EP 3247842 B1 EP3247842 B1 EP 3247842B1
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- EP
- European Patent Office
- Prior art keywords
- reinforcing
- web
- formwork
- flange
- projection
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
- E04C3/185—Synthetic reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/38—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for plane ceilings of concrete
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/483—Supporting heads
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/50—Girders, beams, or the like as supporting members for forms
Definitions
- the invention relates to a formwork support according to the preamble of claim 1.
- the invention relates to a formwork construction according to the preamble of claim 15.
- an I-shaped component which has interconnected planks with openings to which an upper strut and a lower strut are attached. This results in an I-shaped cross section.
- the struts can be attached to the planks by means of nails or glue. Between the struts and the planks metal strips can be arranged. For this purpose, in each case a groove can be milled into the planks, in which the respective metal strip is fitted.
- Formwork beams with an I-shaped cross-section are for example in the DE 103 05 613 B4 or in the DE 1 958 002 shown.
- the formwork beams have two straps, which are connected to each other via a web.
- the straps are usually made of a first wood material, the web element made of a second wood material.
- Such formwork supports are used in structural engineering for supporting shuttering panels, with which a concrete ceiling is produced.
- the formwork beams are in this case supported on a support device in the form of ceiling supports. When installed, the formwork beams are exposed to high operating loads, which act on the formwork beams from the slab formwork. Accordingly, a high load capacity of the formwork support is required.
- the object of the present invention is to provide a formwork support of the type mentioned, with which the disadvantages of the prior art are eliminated or alleviated.
- the invention is therefore particularly aimed at improving the carrying capacity of the formwork support, without having to give up the timber construction of the straps.
- this is at least one first reinforcing element on the at least one first projection of the bar element.
- the carrying capacity of the formwork support is improved in that the extending in the longitudinal direction of the formwork support first reinforcing member rests on the inside of the first projection of the web element, with which the web element is anchored in the wood material of the first belt member.
- the abutment of the first reinforcing member with the first protrusion of the web member means that the first reinforcing member without interlayer of the wood material of the first web member communicates with the first protrusion of the web member. Accordingly, the first reinforcing element on the one hand bear directly against the first projection of the web element.
- an intermediate element different from the wood material of the first belt element can be arranged between the first reinforcing element and the first projection of the web element, wherein the loads can be removed from the first reinforcing element into the web element with the aid of the intermediate element.
- the first reinforcing element is arranged substantially completely between the outer surfaces of the first belt element, so that the first reinforcing element does not protrude beyond one of the outer surfaces of the first belt element.
- the first reinforcing element also terminates flush with the outer surface of the first belt element.
- the arrangement of the first reinforcing element in the correspondingly shaped recess of the first belt element has the advantage that the loads acting on the first reinforcing element are removed directly from the first reinforcing element into the web element, ie without intermediary of the wood material of the first belt element the other side is connected to the second belt element.
- the abutment surfaces between the first reinforcing element and the first projection of the bar element are substantially arranged parallel to the second belt element facing away from the outer surface of the first belt member, which is loaded in the installed operating state of the formwork support.
- the loading of the outer surface of the first belt element can be done by bearing on a support means, in particular in the form of ceiling props, by resting on another formwork support or by the load acting on an overlying formwork panel.
- the direct connection of the first reinforcing element to the web element can increase the load capacity of the formwork support.
- the first reinforcing element is formed from a material which is different from the wood material of the first belt element, in particular softwood.
- the first reinforcing element is preferably formed of a metal, for example aluminum, a plastic, or a fiber-reinforced plastic.
- the first reinforcing element can also be made from a wood material that is different from the wood material of the first belt element, which is more resilient than the wood material of the first belt element, in particular in the direction perpendicular to the outer surface of the first belt element.
- the wood material of the first reinforcing element may have perpendicular to the outer surface of the first belt member, ie in the loading direction, arranged wood layers.
- the wood material of the first reinforcing element may be plywood or laminated veneer lumber, wherein a plurality of layers of the plywood or the laminated veneer lumber are parallel to the main plane of the pile element, ie in the loading direction, extends.
- the first reinforcing element is fixed within the recess of the first belt element.
- an adhesive or a mechanical connection between the first reinforcing member and the wood material of the first belt member is provided.
- the adhesive or glue connection may be provided on the side walls of the first reinforcing element, but also on the inside of the first reinforcing element facing the web element.
- the first projection of the bar element can be fixed in a correspondingly shaped recess of the first belt element, in particular adhesively bonded or glued, but also be mechanically connected.
- the first protrusion is preferably arranged substantially completely within the first belt element, whereas the associated longitudinal side of the web element bears against the outer surface of the first belt element facing the second belt element.
- the first projection extends in the longitudinal direction of the bar element, wherein the first projection projects up from the longitudinal side of the bar element.
- the web element consists of a further wood material, in particular in the form of a multi-layer solid wood panel made of softwood, a flat-pressed plate or a plywood plate.
- the first reinforcing element in the first belt element preferably contacts the first projection of the web element over substantially the entire length of the web element, so that a uniform load transfer over the length of the formwork carrier is achieved. With the aid of the first reinforcing element, the tensile strength of the first belt element can be substantially increased.
- At least one second reinforcing element extending in the longitudinal direction of the second belt element is arranged in a corresponding recess of the second belt element, the at least one second reinforcing element either abutting directly on the at least one second protrusion of the web element or different from the wood material of the second belt element Intermediate element between the at least one second reinforcing element and the at least one second projection of the web element is arranged.
- both belt elements are provided with reinforcing elements, which with the projections on the two opposite longitudinal sides of the bar element in such Connection are that a load transfer from the one side of the formwork support to the other side of the formwork support is achieved.
- the second reinforcing element may be designed in accordance with the first reinforcing element. Therefore, for the purposes of this disclosure, features and characteristics of the first reinforcing member will be described as being equally applicable to the first and / or the second reinforcing member.
- an effective load transfer from the first reinforcing element in the first belt element via the web element to the second reinforcing element in the second belt element can be accomplished.
- the bearing of the formwork support on a support means can be made particularly stable.
- the loads in the assembled operating state of the formwork support can reliably be transferred in the vertical direction from one longitudinal side of the formwork support to the other longitudinal side of the formwork support.
- the formwork support can also be used in a wall formwork.
- the at least one second reinforcing element between the second projection of the web member and the first belt member remote from the outer surface of the second belt member is extended.
- the reinforcing elements terminate substantially flush with the outer surfaces of the belt elements.
- the first reinforcing member has a load receiving surface substantially in the plane of the outer surface of the first belt member
- the second reinforcing member has a load discharging surface substantially in the plane of the outer surface of the second belt member.
- the outer surface of the first belt member is exposed to high operating loads, which are received by the first reinforcing member on the outer surface of the first belt member and transmitted directly to the web member, from which an immediate load transfer on the second reinforcing member for Outside surface of the second belt element takes place.
- the outer surface of the second belt element can be supported on a support device, so that the loads introduced by the outer surface of the first belt element can be removed into the support device via the second reinforcement element.
- the first reinforcing element is a cross-sectionally rectangular or trapezoidal hollow profile element which has a bottom wall resting against the first protrusion of the web element.
- the second belt element has a second reinforcing element, this may also be formed as a hollow profile element, which is preferably substantially identical to the first reinforcing element.
- the hollow profile element extends within the recess of the first belt element in its longitudinal direction.
- the cross section of the hollow profile element is preferably constant in the longitudinal direction of the first belt element.
- the hollow profile element has on the inside a bottom wall which is supported on the associated projection of the bar element.
- the hollow profile element has two longitudinal side walls and an outer wall, which enclose a cavity.
- the outer wall is preferably arranged substantially in the plane of the outer surface of the associated belt element, wherein operating loads can be absorbed or discharged via the outer wall of the hollow profile element.
- the hollow profile element is characterized by a high rigidity with low weight on.
- the hollow profile element has a central cavity, in which connection elements, in particular fastening elements, can be accommodated.
- the hollow profile element has at least one retaining opening for the arrangement of a fastener, wherein the holding opening of the hollow profile element is preferably in the longitudinal direction of the first belt member, in particular in the plane of the outer surface of the first belt member extends .
- the fastening elements can be used for example for fixing the formwork support to a support device.
- a tilt protection of the formwork beams can be achieved, whereby the operation can be made safer.
- the hollow profile element can be used with the holding opening for connection to a steel wall bolt.
- the design as a hollow profile element with holding opening has the particular advantage that the connection of system components in a particularly simple manner, without damaging the formwork support, as in drilling, can be made.
- the connection between the formwork support and the system component, for example a support element is particularly stable.
- the hollow profile element has a retaining opening extending substantially in the plane of the outer surface of the first belt element, the hollow profile element having a gutter, in particular with a further retaining opening, between the outer surface of the first belt element and the bottom wall of the hollow profile element.
- the retaining opening in the plane of the outer surface of the belt element preferably has a greater longitudinal extent than the further retaining opening in the intermediate web.
- the hollow profile element is trapezoidal in cross-section, wherein the extension of the trapezoidal hollow profile element perpendicular to the main plane of the bar element on the side of the first projection of the bar element is shorter than on the side facing away from the second strap element outer surface of the first belt element.
- the extension of the hollow profile element perpendicular to the main plane of the web element ie its width, increases from the bottom wall to the outside wall.
- This embodiment has the advantage that the hollow profile element can accommodate fastening elements of a predetermined, in particular normalized width, while the bottom wall of the hollow profile element can have substantially the same width as the contact surface of the projection (or the entire width of a plurality of projections including the spaces between the projections).
- At least one intermediate element is provided between the first reinforcing element and the first protrusion, which on the side of the first reinforcing element has a greater extent perpendicular to the main plane of the web element than on the side of the first protrusion of the web element. Accordingly, the intermediate element tapers from the outer side which bears against the reinforcing element in the direction of the inner side resting against the projection. As a result, a continuous transition between the reinforcing element and the at least one projection of the bar element can be created if the reinforcing element, in particular due to standards, should have a greater width than the at least one projection on the bar element.
- the intermediate element on the inside has substantially the same width as the first projection of the free-end support element.
- the intermediate member on the inside preferably has substantially the same width as the plurality of protrusions including the spaces between the protrusions together.
- a plurality of intermediate elements are provided, wherein each an intermediate element bears against a projection of the web element.
- intermediate elements may be provided on both belt elements of the formwork support. The intermediate element is designed such that the load transfer is imparted by the first reinforcing element into the web element.
- the intermediate element is designed as a separate component, in particular made of metal or plastic, which is arranged between the first reinforcing element and the first projection of the rod element.
- the intermediate element may be integrally connected to the first reinforcing element.
- an adhesive connection between the first reinforcing element and the first projection of the web element can be provided as intermediate element.
- a cross-section from outside to inside converging, in particular trapezoidal, free space between the first reinforcing element and the first projection of the bar member is provided, which is filled with adhesive.
- All embodiments of the formwork support with the intermediate element between the first reinforcing element and the web element have the advantage that the first reinforcing element can be formed with a substantially constant width between the outer and the inner side.
- the first reinforcing element can be anchored more stably in the first belt element than in a wedge-shaped embodiment of the first reinforcing element.
- a gap formation between the first reinforcing member and the adjacent portions of the first belt member can be avoided.
- the intermediate element is trapezoidal in cross section.
- a plurality of trapezoidal intermediate elements in particular one trapezoidal intermediate element per projection of the bar element, may be provided.
- the first reinforcing element is a cross-sectionally full insert element, which is preferably made of metal, in particular aluminum, plastic, fiber-reinforced plastic or wood material different from the wood material of the first belt element wood material, in particular hardwood, plywood or veneer plywood.
- the insert element which is different from the wood material of the first belt element is received in the recess of the first belt element, wherein the material of the insert element has a higher bearing capacity or stiffness than the first wood material of the first belt element.
- at least one insert element is provided in the first and in the second belt element. In some cases, however, only one of the belt elements may be provided with a reinforcing element.
- the insert element is to have a greater width than the first projection of the bar element, an intermediate element is preferably provided between the inside of the insert element and the free end of the first projection of the bar element.
- the execution of the first reinforcing element as a cross-sectionally full insert element brings in particular the advantage that accumulations of dirt on the first belt element are avoided.
- the first reinforcing element in this embodiment has a high deformation resistance. This is particularly advantageous if the formwork beam bounces hard on the ground when dismantling the formwork.
- the first reinforcing element is arranged for a load transfer over its entire width.
- the insert element of full cross section and the first projection of the web element on the side of the contact surfaces between the insert element and the first projection preferably have substantially the same extent perpendicular to the main plane of the web element. Accordingly, the insert element lies on the entire surface on the at least one projection of the bar element.
- the width of the insert member preferably corresponds to the width of the plurality of protrusions including the spaces between the protrusions.
- this embodiment is provided as an insert element arranged substantially parallel to the main plane of the rod member reinforcing plate, in particular a flat profile made of metal, preferably made of aluminum, preferably at least two reinforcing plates bear against a corresponding number of first protrusions of the rod element.
- the recess of the belt member slit-shaped, wherein the reinforcing plate within the slot-shaped recess of the belt member attached, in particular glued, is.
- the formwork support with at least two flat profiles is advantageous that the portion between the two flat profiles can be used for driving nails.
- the first reinforcement element extends substantially over the entire length of the first belt element.
- first reinforcing elements may be spaced apart in the longitudinal direction of the first belt element.
- individual first or second reinforcing elements are provided, with free sections of the formwork support extending therebetween from the first and second reinforcing elements.
- a formwork construction 1 is shown, which is set up in the embodiment shown for the production of a ceiling.
- the formwork construction 1 has a plurality of support elements 2, which are supported on the ground.
- Similar formwork support 3 are superimposed, with which further, extending transversely thereto formwork supports 3 are supported.
- the formwork beams 3 on the support elements 2 are referred to as Jochlini, the transverse formwork 3 as a cross member.
- formwork panels 4 are arranged.
- the formwork construction 1 is known per se from the prior art, so that more detailed explanations can be dispensed with.
- the formwork supports 3 are perpendicular to the (in Fig. 2 drawn) longitudinal direction 5 loaded.
- each formwork support 3 has a longitudinally extending 5 first belt element 6 consisting of a wood-based material and a second belt element 7, which is extended in the longitudinal direction 5 and consists of a wood-based material.
- the first belt element 6 and the second belt element 7 are connected to one another via a web element 8 which is extended in the longitudinal direction 5 and which is formed from a further wood material.
- the web element 8 is plate-shaped, wherein the main plane of the web element 8 is substantially perpendicular to the main plane of the first 6 and second belt element 7. In the case of the slab formwork shown, the web element 8 is therefore vertically aligned in the installed state.
- the first 6 and second belt element 7 have a greater width, ie extension perpendicular to the main plane of the web element 8, than the web element 8. Accordingly, the formwork supports 3, as usual in the prior art, I-shaped.
- the first belt element 6 is made of a first wood material
- the second belt element 7 of a second wood material.
- the first 6 and the second belt elements 7 are made of the same wood material, in particular softwood.
- the web element 8 on one longitudinal side at least a first projection or prongs 9, which engages in a corresponding recess of the first belt member 6.
- the web element 8 has on the other (opposite) longitudinal side at least one corresponding second projection or prongs 10, which engages in a corresponding recess of the second belt element 7.
- two first projections 9 and two second projections 10 are provided.
- the first 9 and second projections 10 ensure a secure anchoring of the bar element 8 in the first 6 and second belt element 7.
- the first 9 and second projections 10 extend bar-shaped in the longitudinal direction 5 of the formwork carrier 3.
- the first 9 and second projections 10 tapered in a wedge shape in the direction of the free end.
- the formwork support 3 also has at least one longitudinal direction 5 of the first belt element 6 extended first reinforcing element 11, which is arranged in a correspondingly shaped recess 12 of the first belt member 6.
- first reinforcing element 11 extends between the outer surface 6 'of the first belt element 6 facing away from the second belt element 7 and the first projection 9 of the web element 9. Accordingly, the first reinforcing element 11 is in contact with the first projection 9 of the web element 8, whereby a direct load transmission between the outer surface 6 'of the first belt member 6 via the first reinforcing member 11 is accomplished in the web element 8.
- the formwork support 3 also has at least one second reinforcement element 13 which extends in the longitudinal direction 5 of the second belt element 7 and which is arranged in a corresponding recess 14 of the second belt element 7.
- two second reinforcing elements 13 are provided.
- the second reinforcing element 13 extends between the second projection 10 of the bar element 8 and the outer surface 7 'of the second belt element 7 facing away from the first belt element 6, so that the second reinforcing element 13 contacts the second projection 10 of the bar element 8 on the one longitudinal side and on the one side other longitudinal side on the outer surface 7 'of the second belt member 7 is exposed.
- Fig. 1a, 1b can be seen in the formwork construction 1 conventional formwork beams 3, without reinforcing elements 11, 13, and the in Fig. 2 ff. shown shuttering carrier 3 with reinforcing elements 11, 13 are combined with each other.
- the Joch the shuttering structure 1 by formwork beams 3 with reinforcing elements 11, the cross member is formed partly by formwork beams 3 without reinforcing elements 11, 13, partly by formwork beams 3 with reinforcing elements 11, 13.
- Fig. 2 to 4 are the first 11 and second reinforcing element 13 formed by cross-sectionally full insert elements 16.
- the insert elements 16 have the same width as the free ends of the bar elements 8. As a result, the insert elements 16 rest against the projections 10 over the whole area.
- the insert elements 16 are formed as reinforcing plates which are substantially parallel to the main plane of the bar element 8, ie in the case of the slab formwork according to FIG Fig. 1a in the installed state vertically, are arranged.
- the insert elements 16 are preferably made of metal, in particular aluminum, plastic, fiber-reinforced plastic or a wood material, in particular plywood or veneer plywood.
- first 11 and second reinforcing element 13 in cross-section rectangular hollow profile elements 17.
- the hollow profile elements 17 have a bottom wall 18 resting against the first 9 or second projection 10 of the bar element 8, with upstanding side walls 19 arranged parallel to one another and with an outer wall 20 extending substantially in the plane of the outer surface 6 'of the first belt element 6.
- intermediate elements 22 are provided between the first reinforcing element 11 and the first protrusions 9 and between the second reinforcing element 13 and the second protrusions 10 of the web element 8.
- the intermediate elements 22 are extended in the longitudinal direction 5 of the formwork support 3 and run in each case from the outer side resting against the hollow profile element 17 to the inner side resting against the first 9 or second projections 10.
- the intermediate elements 22 have trapezoidal sections in cross section.
- the intermediate elements 22 may also be formed integrally with the first 11 and second reinforcing element 13 (not shown).
- the intermediate elements 22 may be formed by adhesive bonds, which are set up for a load transfer between the hollow profile elements 17 and the web element 8. This version is used in production Free spaces between the hollow profile elements 17 and the first 9 and second projections 10 of the bar element 8 are formed, which are filled with adhesive.
- integrally connected with the hollow profile elements 17 intermediate elements 22 can be combined with adhesive compounds (not shown).
- the hollow profile elements 17 a plurality of spaced longitudinally 5 holding openings 21, to which fasteners, such as hammer head screws can be mounted for various connection elements.
- the holding openings 21 of the hollow profile elements 17 extend in the longitudinal direction 5 of the formwork support 3 in the plane of the outer surface 6 'of the first belt element 6 and in the plane of the outer surface 7' of the second belt element 7.
- intermediate members 22 are provided between the first reinforcing member 11 and the first protrusions 9 and between the second reinforcing member 13 and the second protrusions 10, respectively.
- the intermediate elements 22 are trapezoidal in cross-section.
- 11 two trapezoidal intermediate elements 22 are arranged between the first reinforcing element 11 and the first projections 9. Furthermore, there are two trapezoidal intermediate elements 22 between the second reinforcing element 13 and the second projection 10th
- the first belt element 6 has a plurality of recesses 12 spaced apart from one another in the longitudinal direction 5, in which corresponding first reinforcing elements 11 are arranged. Accordingly, the first belt member 6 in this embodiment of first reinforcing elements 11 free sections, which, for example, the same length as the first reinforcing elements 11 may have.
- the second belt element 7 is constructed in accordance with the first belt element 6, wherein a plurality of second reinforcing elements 13 are arranged in corresponding recesses 14 of the second belt element 6.
- the first 11 and second reinforcing elements 13 are formed rectangular in cross-section, wherein the width of the bottom wall 18 of the first 11 and second reinforcing elements 13 in the illustrated embodiment of Total width of the first 9 and second projections 10, including the intervening gap corresponds.
- the hollow profile elements 17 on the first 6 and second belt element 7 are trapezoidal in cross-section, wherein the bottom wall 18 has a smaller width than the outer wall 20 of the hollow profile element 17.
- the hollow profile elements 17 abut the entire surface on the first 9 and second projections 10 of the bar element 8.
- the web element 8 has exactly one first projection 9 for engagement in the first belt element 6 and exactly one second projection 10 for engagement in the second belt element 7.
- first 11 and second reinforcing element 13 rectangular hollow profile elements 17 are provided in cross-section, which abut with the bottom walls 18 over the entire surface on the first 9 and second projection 10.
- the hollow profile elements 17 also on the outer walls 20 in the inner cavity projecting flanges 23.
- the formwork support 3 each has a first 11 and a second reinforcement element 13 which are formed by insert elements 16 which are full in cross-section, in particular made of metal, preferably aluminum. According to Fig. 19, 20 the insert elements 16 extend over at least two first 9 and second projections 10 of the bar element 8.
- the web element 8 is provided in this embodiment on both broad sides with cover layers 24.
- the cover layers 24 rest against the outer surfaces of the first 6 and second belt element 7 facing one another on the longitudinal side.
- the cover layers 24 and the web element 8 may be formed in one or more parts.
- the insert elements 16 in the first 6 and second belt element 7 are made of plywood, which has a plurality of wood layers 25.
- the wood layers 25 of the plywood insert element 16 are substantially parallel to the main plane of the web element 8, that is substantially vertical in the installed operating state of the formwork support 3.
- the cover layers 24 bear on the mutually facing outer surfaces of the first 6 and second belt element 7.
- the cover layers 24 may also protrude into the recesses provided in the first 6 and second belt element 7 for the projections 9, 10 (not shown). This is expedient in particular when, during the production of the formwork support 3, the web element 8 already provided with the cover layers 24 is connected to the belt elements 6, 7.
- the hollow profile elements 17 between the bottom wall 18 and the outer wall 20 an intermediate web 26 which is substantially parallel to the bottom wall 18 and the outer wall 20 extends.
- the outer wall 20 has a holding opening 21 which extends through in the longitudinal direction 5, the intermediate web 26 having a plurality of further holding openings 27 spaced apart in the longitudinal direction 5.
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Description
Die Erfindung betrifft einen Schalungsträger gemäß dem Oberbegriff von Anspruch 1.The invention relates to a formwork support according to the preamble of
Weiters betrifft die Erfindung eine Schalungskonstruktion gemäß dem Oberbegriff von Anspruch 15.Furthermore, the invention relates to a formwork construction according to the preamble of claim 15.
Aus der
Schalungsträger mit einem I-förmigen Querschnitt sind beispielsweise in der
Vor diesem Hintergrund wurden im Stand der Technik Schalungsträger in Form von Metallprofilen vorgeschlagen (vgl. z.B. die
Weiters wurde in der
Darüber hinaus wurde in der
In der
Demgegenüber besteht die Aufgabe der vorliegenden Erfindung darin, einen Schalungsträger der eingangs angeführten Art zu schaffen, mit welchem die Nachteile des Standes der Technik beseitigt bzw. gelindert werden. Die Erfindung setzt sich daher insbesondere zum Ziel, die Tragfähigkeit des Schalungsträgers zu verbessern, ohne die Holzbauweise der Gurten aufgeben zu müssen.In contrast, the object of the present invention is to provide a formwork support of the type mentioned, with which the disadvantages of the prior art are eliminated or alleviated. The invention is therefore particularly aimed at improving the carrying capacity of the formwork support, without having to give up the timber construction of the straps.
Diese Aufgabe wird durch einen Schalungsträger mit den Merkmalen von Anspruch 1 und eine Schalungskonstruktion mit den Merkmalen von Anspruch 15 gelöst. Bevorzugte Ausführungen sind in den abhängigen Ansprüchen angegeben.This object is achieved by a formwork support with the features of
Erfindungsgemäß liegt das zumindest eine erste Verstärkungselement an dem zumindest einen ersten Vorsprung des Stegelements an.According to the invention, this is at least one first reinforcing element on the at least one first projection of the bar element.
Demnach wird die Tragfähigkeit des Schalungsträgers dadurch verbessert, dass das in Längsrichtung des Schalungsträgers verlaufende erste Verstärkungselement innenseitig an dem ersten Vorsprung des Stegelements anliegt, mit welchem das Stegelement in dem Holzwerkstoff des ersten Gurtelements verankert wird. Für die Zwecke dieser Offenbarung bedeutet die Anlage des ersten Verstärkungselements an dem ersten Vorsprung des Stegelements, dass das erste Verstärkungselement ohne Zwischenlage des Holzwerkstoffs des ersten Gurtelements mit dem ersten Vorsprung des Stegelements in Verbindung steht. Demnach kann das erste Verstärkungselement einerseits direkt an dem ersten Vorsprung des Stegelements anliegen. Andererseits kann jedoch ein vom Holzwerkstoff des ersten Gurtelements verschiedenes Zwischenelement zwischen dem ersten Verstärkungselement und dem ersten Vorsprung des Stegelements angeordnet sein, wobei die Lasten mit Hilfe des Zwischenelements vom ersten Verstärkungselement in das Stegelement abgetragen werden können. Das erste Verstärkungselement ist im Wesentlichen vollständig zwischen den Außenflächen des ersten Gurtelements angeordnet, so dass das erste Verstärkungselement nicht über eine der Außenflächen des ersten Gurtelements hinaussteht. Das erste Verstärkungselement schließt zudem bündig mit der Außenfläche des ersten Gurtelements ab. Die Anordnung des ersten Verstärkungselements in der entsprechend geformten Ausnehmung des ersten Gurtelements hat den Vorteil, dass die am ersten Verstärkungselement angreifenden Lasten direkt, d.h. ohne Vermittlung bzw. Zwischenlage des Holzwerkstoffs des ersten Gurtelements, von dem ersten Verstärkungselement in das Stegelement abgetragen werden, welches auf der anderen Seite mit dem zweiten Gurtelement verbunden ist. Vorzugsweise sind die Anlageflächen zwischen dem ersten Verstärkungselement und dem ersten Vorsprung des Stegelements im Wesentlichen parallel zu der vom zweiten Gurtelement abgewandten Außenfläche des ersten Gurtelements angeordnet, welche im eingebauten Betriebszustand des Schalungsträgers belastet wird. Die Belastung der Außenfläche des ersten Gurtelements kann durch Auflagerung auf einer Stützeinrichtung, insbesondere in Form von Deckenstützen, durch Auflage auf einem anderen Schalungsträger oder durch die Lasteinwirkung über eine aufliegende Schalungsplatte erfolgen. In allen Fällen kann die direkte Anbindung des ersten Verstärkungselements an das Stegelement die Belastbarkeit des Schalungsträgers erhöhen. Zur Verstärkung bzw. Aussteifung des damit versehenen ersten Gurtelements ist das erste Verstärkungselement aus einem vom Holzwerkstoff des ersten Gurtelements, insbesondere Nadelholz, verschiedenen Material gebildet. Bevorzugt ist das erste Verstärkungselement aus einem Metall, beispielsweise Aluminium, einem Kunststoff, oder einem faserverstärkten Kunststoff gebildet. Das erste Verstärkungselement kann jedoch alternativ auch aus einem vom Holzwerkstoff des ersten Gurtelements verschiedenen Holzmaterial gefertigt sein, welches insbesondere in Richtung senkrecht zur Außenfläche des ersten Gurtelements belastbarer als der Holzwerkstoff des ersten Gurtelements ist. Zu diesem Zweck kann das Holzmaterial des ersten Verstärkungselements senkrecht zur Außenfläche des ersten Gurtelements, d.h. in Belastungsrichtung, angeordnete Holzlagen aufweisen. Insbesondere kann das Holzmaterial des ersten Verstärkungselements Sperrholz oder Furnierschichtholz sein, wobei mehrere Schichten bzw. Lagen des Sperrholzes bzw. des Furnierschichtholzes parallel zur Hauptebene des Stegelements, d.h. in Belastungsrichtung, erstreckt sind. Das erste Verstärkungselement ist innerhalb der Ausnehmung des ersten Gurtelements fixiert. Vorzugsweise ist eine Klebe- bzw. Leimverbindung oder eine mechanische Verbindung zwischen dem ersten Verstärkungselement und dem Holzwerkstoff des ersten Gurtelements vorgesehen. Die Klebe- bzw. Leimverbindung kann an den Seitenwänden des ersten Verstärkungselements, aber auch an der dem Stegelement zugewandten Innenseite des ersten Verstärkungselements vorgesehen sein. Auf entsprechende Weise kann zudem der erste Vorsprung des Stegelements in einer entsprechend geformten Aussparung des ersten Gurtelements fixiert, insbesondere verklebt bzw. verleimt, aber auch mechanisch verbunden, sein. Der erste Vorsprung ist vorzugsweise im Wesentlichen vollständig innerhalb des ersten Gurtelements angeordnet, wohingegen die zugehörige Längsseite des Stegelements an der dem zweiten Gurtelement zugewandten Außenfläche des ersten Gurtelements anliegt. Zur gleichmäßigen Verankerung des Stegelements in dem ersten Gurtelement erstreckt sich der erste Vorsprung in Längsrichtung des Stegelements, wobei der erste Vorsprung von der Längsseite des Stegelements hochsteht. Bevorzugt sind ein bis drei erste Vorsprünge, insbesondere genau zwei erste Vorsprünge, vorgesehen. Das Stegelement besteht aus einem weiteren Holzwerkstoff, insbesondere in Form einer mehrschichtigen Massivholzplatte aus Nadelholz, einer Flachpressplatte oder einer Sperrholzplatte. Das erste Verstärkungselement in dem ersten Gurtelement kontaktiert den ersten Vorsprung des Stegelements vorzugsweise über im Wesentlichen die gesamte Länge des Stegelements, so dass eine gleichmäßige Lastabtragung über die Länge des Schalungsträgers erzielt wird. Mit Hilfe des ersten Verstärkungselements kann die Zugfestigkeit des ersten Gurtelements wesentlich gesteigert werden. Dadurch kann die Tragfähigkeit gegenüber Biegemomenten verbessert werden. Schließlich konnte eine Erhöhung der Steifigkeit des Schalungsträgers nachgewiesen werden, wodurch die Aufnahme von Querkräften verbessert werden konnte. Bei umfangreichen Tests hat sich zudem gezeigt, dass die erfindungsgemäße Anordnung des ersten Verstärkungselements den Auflagewiderstand des Schalungsträgers wesentlich erhöht.Accordingly, the carrying capacity of the formwork support is improved in that the extending in the longitudinal direction of the formwork support first reinforcing member rests on the inside of the first projection of the web element, with which the web element is anchored in the wood material of the first belt member. For the purposes of this disclosure, the abutment of the first reinforcing member with the first protrusion of the web member means that the first reinforcing member without interlayer of the wood material of the first web member communicates with the first protrusion of the web member. Accordingly, the first reinforcing element on the one hand bear directly against the first projection of the web element. On the other hand, however, an intermediate element different from the wood material of the first belt element can be arranged between the first reinforcing element and the first projection of the web element, wherein the loads can be removed from the first reinforcing element into the web element with the aid of the intermediate element. The first reinforcing element is arranged substantially completely between the outer surfaces of the first belt element, so that the first reinforcing element does not protrude beyond one of the outer surfaces of the first belt element. The first reinforcing element also terminates flush with the outer surface of the first belt element. The arrangement of the first reinforcing element in the correspondingly shaped recess of the first belt element has the advantage that the loads acting on the first reinforcing element are removed directly from the first reinforcing element into the web element, ie without intermediary of the wood material of the first belt element the other side is connected to the second belt element. Preferably, the abutment surfaces between the first reinforcing element and the first projection of the bar element are substantially arranged parallel to the second belt element facing away from the outer surface of the first belt member, which is loaded in the installed operating state of the formwork support. The loading of the outer surface of the first belt element can be done by bearing on a support means, in particular in the form of ceiling props, by resting on another formwork support or by the load acting on an overlying formwork panel. In all cases, the direct connection of the first reinforcing element to the web element can increase the load capacity of the formwork support. For reinforcing or stiffening of the first belt element provided therewith, the first reinforcing element is formed from a material which is different from the wood material of the first belt element, in particular softwood. The first reinforcing element is preferably formed of a metal, for example aluminum, a plastic, or a fiber-reinforced plastic. Alternatively, however, the first reinforcing element can also be made from a wood material that is different from the wood material of the first belt element, which is more resilient than the wood material of the first belt element, in particular in the direction perpendicular to the outer surface of the first belt element. For this purpose, the wood material of the first reinforcing element may have perpendicular to the outer surface of the first belt member, ie in the loading direction, arranged wood layers. In particular, the wood material of the first reinforcing element may be plywood or laminated veneer lumber, wherein a plurality of layers of the plywood or the laminated veneer lumber are parallel to the main plane of the pile element, ie in the loading direction, extends. The first reinforcing element is fixed within the recess of the first belt element. Preferably, an adhesive or a mechanical connection between the first reinforcing member and the wood material of the first belt member is provided. The adhesive or glue connection may be provided on the side walls of the first reinforcing element, but also on the inside of the first reinforcing element facing the web element. In a corresponding manner, moreover, the first projection of the bar element can be fixed in a correspondingly shaped recess of the first belt element, in particular adhesively bonded or glued, but also be mechanically connected. The first protrusion is preferably arranged substantially completely within the first belt element, whereas the associated longitudinal side of the web element bears against the outer surface of the first belt element facing the second belt element. For uniform anchoring of the bar element in the first belt element, the first projection extends in the longitudinal direction of the bar element, wherein the first projection projects up from the longitudinal side of the bar element. Preferably, one to three first projections, in particular exactly two first projections, are provided. The web element consists of a further wood material, in particular in the form of a multi-layer solid wood panel made of softwood, a flat-pressed plate or a plywood plate. The first reinforcing element in the first belt element preferably contacts the first projection of the web element over substantially the entire length of the web element, so that a uniform load transfer over the length of the formwork carrier is achieved. With the aid of the first reinforcing element, the tensile strength of the first belt element can be substantially increased. As a result, the carrying capacity for bending moments can be improved. Finally, an increase in the rigidity of the formwork support could be detected, whereby the absorption of shear forces could be improved. In extensive tests has also been found that the inventive arrangement of the first reinforcing member significantly increases the bearing resistance of the formwork support.
Gemäß einer besonders bevorzugten Ausführung ist zumindest ein in Längsrichtung des zweiten Gurtelements erstrecktes zweites Verstärkungselement in einer entsprechenden Ausnehmung des zweiten Gurtelements angeordnet, wobei das zumindest eine zweite Verstärkungselement an dem zumindest einen zweiten Vorsprung des Stegelements entweder direkt anliegt oder ein vom Holzwerkstoff des zweiten Gurtelements verschiedenes Zwischenelement zwischen dem zumindest einen zweiten Verstärkungselement und dem zumindest einen zweiten Vorsprung des Stegelements angeordnet ist. Bei dieser Ausführung sind daher beide Gurtelemente mit Verstärkungselementen versehen, welche mit den Vorsprüngen an den beiden gegenüberliegenden Längsseiten des Stegelements derart in Verbindung stehen, dass eine Lastabtragung von der einen Seite des Schalungsträgers auf die andere Seite des Schalungsträgers erzielt wird. Das zweite Verstärkungselement kann entsprechend dem ersten Verstärkungselement ausgeführt sein. Wenn daher für die Zwecke dieser Offenbarung Merkmale und Eigenschaften des ersten Verstärkungselements beschrieben werden, können diese gleichermaßen bei dem ersten und/oder bei dem zweiten Verstärkungselement verwirklicht sein. Bei dieser Ausführung kann vorteilhafterweise eine wirksame Lastabtragung von dem ersten Verstärkungselement in dem ersten Gurtelement über das Stegelement auf das zweite Verstärkungselement in dem zweiten Gurtelement bewerkstelligt werden. Dadurch kann insbesondere die Auflagerung des Schalungsträgers auf einer Stützeinrichtung besonders stabil gestaltet werden. Im Fall einer Deckenschalung können die Lasten im montierten Betriebszustand des Schalungsträgers zuverlässig in vertikaler Richtung von der einen Längsseite des Schalungsträgers auf die andere Längsseite des Schalungsträgers übertragen werden. Darüber hinaus kann der Schalungsträger auch bei einer Wandschalung eingesetzt werden.According to a particularly preferred embodiment, at least one second reinforcing element extending in the longitudinal direction of the second belt element is arranged in a corresponding recess of the second belt element, the at least one second reinforcing element either abutting directly on the at least one second protrusion of the web element or different from the wood material of the second belt element Intermediate element between the at least one second reinforcing element and the at least one second projection of the web element is arranged. In this embodiment, therefore, both belt elements are provided with reinforcing elements, which with the projections on the two opposite longitudinal sides of the bar element in such Connection are that a load transfer from the one side of the formwork support to the other side of the formwork support is achieved. The second reinforcing element may be designed in accordance with the first reinforcing element. Therefore, for the purposes of this disclosure, features and characteristics of the first reinforcing member will be described as being equally applicable to the first and / or the second reinforcing member. In this embodiment, advantageously, an effective load transfer from the first reinforcing element in the first belt element via the web element to the second reinforcing element in the second belt element can be accomplished. As a result, in particular the bearing of the formwork support on a support means can be made particularly stable. In the case of a slab formwork, the loads in the assembled operating state of the formwork support can reliably be transferred in the vertical direction from one longitudinal side of the formwork support to the other longitudinal side of the formwork support. In addition, the formwork support can also be used in a wall formwork.
Zur Ableitung der in Gebrauch des Schalungsträgers wirksamen Lasten in eine den Schalungsträger lagernde Stützvorrichtung ist es von Vorteil, wenn das zumindest eine zweite Verstärkungselement zwischen dem zweiten Vorsprung des Stegelements und der vom ersten Gurtelement abgewandten Außenfläche des zweiten Gurtelements erstreckt ist. Bei dieser Ausführung schließen die Verstärkungselemente im Wesentlichen bündig mit den Außenflächen der Gurtelemente ab. Bevorzugt weist das erste Verstärkungselement eine Lastaufnahmefläche im Wesentlichen in der Ebene der Außenfläche des ersten Gurtelements und das zweite Verstärkungselement eine Lastabgabefläche im Wesentlichen in der Ebene der Außenfläche des zweiten Gurtelements auf. Im eingebauten Zustand des Schalungsträgers wird die Außenfläche des ersten Gurtelements hohen Betriebslasten ausgesetzt, welche von dem ersten Verstärkungselement an der Außenfläche des ersten Gurtelements aufgenommen und unmittelbar auf das Stegelement übertragen werden, von welchem eine unmittelbare Lastabtragung über das zweite Verstärkungselement zur
Außenfläche des zweiten Gurtelements hin erfolgt. Die Außenfläche des zweiten Gurtelements kann auf einer Stützeinrichtung aufgelagert werden, so dass die von der Außenfläche des ersten Gurtelementes eingebrachten Lasten über das zweite Verstärkungselement in die Stützeinrichtung abgetragen werden können. Diese Ausführung hat insbesondere den Vorteil, dass Einpressungen in dem Holzwerkstoff des Schalungsträgers infolge der Auflagerung auf der (üblicherweise aus Metall gefertigten) Stützeinrichtung vermieden werden können. Dadurch kann die Wiederverwendbarkeit des Schalungsträgers verbessert werden, wodurch Kosteneinsparungen erzielt werden können. Zudem kann der Ressourceneinsatz minimiert werden.For deriving the effective in use of the formwork support loads in a formwork support overlapping support device, it is advantageous if the at least one second reinforcing element between the second projection of the web member and the first belt member remote from the outer surface of the second belt member is extended. In this embodiment, the reinforcing elements terminate substantially flush with the outer surfaces of the belt elements. Preferably, the first reinforcing member has a load receiving surface substantially in the plane of the outer surface of the first belt member, and the second reinforcing member has a load discharging surface substantially in the plane of the outer surface of the second belt member. In the installed state of the formwork support the outer surface of the first belt member is exposed to high operating loads, which are received by the first reinforcing member on the outer surface of the first belt member and transmitted directly to the web member, from which an immediate load transfer on the second reinforcing member for
Outside surface of the second belt element takes place. The outer surface of the second belt element can be supported on a support device, so that the loads introduced by the outer surface of the first belt element can be removed into the support device via the second reinforcement element. This embodiment has the particular advantage that press-fit in the wood material of the formwork support due to the Auflagerung on the (usually made of metal) support means can be avoided. Thereby, the reusability of the formwork support can be improved, whereby cost savings can be achieved. In addition, the use of resources can be minimized.
Zur Verstärkung des Schalungsträgers ist es günstig, wenn als erstes Verstärkungselement ein im Querschnitt insbesondere rechteckiges oder trapezförmiges Hohlprofilelement vorgesehen ist, welches eine an dem ersten Vorsprung des Stegelements anliegende Bodenwand aufweist. Wenn das zweite Gurtelement ein zweites Verstärkungselement aufweist, kann dieses ebenfalls als Hohlprofilelement ausgebildet sein, welches vorzugsweise im Wesentlichen ident zu dem ersten Verstärkungselement ist. Das Hohlprofilelement erstreckt sich innerhalb der Ausnehmung des ersten Gurtelements in dessen Längsrichtung. Bevorzugt ist der Querschnitt des Hohlprofilelements in Längsrichtung des ersten Gurtelements konstant. Das Hohlprofilelement weist innenseitig eine Bodenwand auf, welche auf dem zugehörigen Vorsprung des Stegelements abgestützt ist. Wenn das Stegelement mehrere Vorsprünge aufweist, stehen vorzugsweise alle Vorsprünge des Stegelements in Kontakt mit der Bodenwand des Hohlprofilelements. Dadurch kann die Kraftübertragung zwischen dem ersten bzw. zweiten Gurtelement und dem Stegelement maximiert werden. Darüber hinaus weist das Hohlprofilelement zwei längsseitige Seitenwände und eine Außenwand auf, welche einen Hohlraum einschließen. Die Außenwand ist vorzugsweise im Wesentlichen in der Ebene der Außenfläche des zugehörigen Gurtelements angeordnet, wobei Betriebslasten über die Außenwand des Hohlprofilelements aufgenommen bzw. abgeleitet werden können. Das Hohlprofilelement zeichnet sich durch eine hohe Steifigkeit bei geringem Gewicht auf. Darüber hinaus weist das Hohlprofilelement einen zentralen Hohlraum auf, in welchem Anschlusselemente, insbesondere Befestigungselemente, aufgenommen werden können.To reinforce the formwork support, it is favorable if the first reinforcing element is a cross-sectionally rectangular or trapezoidal hollow profile element which has a bottom wall resting against the first protrusion of the web element. If the second belt element has a second reinforcing element, this may also be formed as a hollow profile element, which is preferably substantially identical to the first reinforcing element. The hollow profile element extends within the recess of the first belt element in its longitudinal direction. The cross section of the hollow profile element is preferably constant in the longitudinal direction of the first belt element. The hollow profile element has on the inside a bottom wall which is supported on the associated projection of the bar element. If the web element has a plurality of projections, preferably all the projections of the web element are in contact with the bottom wall of the hollow profile element. As a result, the power transmission between the first and second belt element and the web element can be maximized. In addition, the hollow profile element has two longitudinal side walls and an outer wall, which enclose a cavity. The outer wall is preferably arranged substantially in the plane of the outer surface of the associated belt element, wherein operating loads can be absorbed or discharged via the outer wall of the hollow profile element. The hollow profile element is characterized by a high rigidity with low weight on. In addition, the hollow profile element has a central cavity, in which connection elements, in particular fastening elements, can be accommodated.
Um Befestigungselemente an dem Verstärkungselement anbringen zu können, ist es weiters vorteilhaft, wenn das Hohlprofilelement zumindest eine Halteöffnung zur Anordnung eines Befestigungselements aufweist, wobei die Halteöffnung des Hohlprofilelements vorzugsweise in Längsrichtung des ersten Gurtelements, insbesondere in der Ebene der Außenfläche des ersten Gurtelements, erstreckt ist. Die Befestigungselemente können beispielsweise zur Fixierung des Schalungsträgers an einer Stützeinrichtung verwendet werden. Dadurch kann beispielsweise eine Kippsicherung der Schalungsträger erzielt werden, wodurch der Arbeitsvorgang sicherer gestaltet werden kann. Im Fall einer Verwendung des Schalungsträgers bei Wandschalungen kann das Hohlprofilelement mit der Halteöffnung zur Verbindung mit einem Stahlwandriegel genutzt werden. Die Ausführung als Hohlprofilelement mit Halteöffnung hat insbesondere den Vorteil, dass der Anschluss von Systemkomponenten auf besonders einfache Weise, ohne Beschädigung des Schalungsträgers, wie bei Bohrungen, vorgenommen werden kann. Darüber hinaus ist die Verbindung zwischen dem Schalungsträger und der Systemkomponente, beispielsweise einem Stützelement, besonders stabil.In order to attach fasteners to the reinforcing element, it is further advantageous if the hollow profile element has at least one retaining opening for the arrangement of a fastener, wherein the holding opening of the hollow profile element is preferably in the longitudinal direction of the first belt member, in particular in the plane of the outer surface of the first belt member extends , The fastening elements can be used for example for fixing the formwork support to a support device. As a result, for example, a tilt protection of the formwork beams can be achieved, whereby the operation can be made safer. In the case of using the formwork support in wall formwork, the hollow profile element can be used with the holding opening for connection to a steel wall bolt. The design as a hollow profile element with holding opening has the particular advantage that the connection of system components in a particularly simple manner, without damaging the formwork support, as in drilling, can be made. In addition, the connection between the formwork support and the system component, for example a support element, is particularly stable.
Gemäß einer weiteren bevorzugten Ausführungsform weist das Hohlprofilelement eine im Wesentlichen in der Ebene der Außenfläche des ersten Gurtelements erstreckte Halteöffnung auf, wobei das Hohlprofilelement einen Zwischensteg, insbesondere mit einer weiteren Halteöffnung, zwischen der Außenfläche des ersten Gurtelements und der Bodenwand des Hohlprofilelements aufweist. Bei dieser Ausführung weist die Halteöffnung in der Ebene der Außenfläche des Gurtelements vorzugsweise eine größere Längserstreckung als die weitere Halteöffnung in dem Zwischensteg auf.According to a further preferred embodiment, the hollow profile element has a retaining opening extending substantially in the plane of the outer surface of the first belt element, the hollow profile element having a gutter, in particular with a further retaining opening, between the outer surface of the first belt element and the bottom wall of the hollow profile element. In this embodiment, the retaining opening in the plane of the outer surface of the belt element preferably has a greater longitudinal extent than the further retaining opening in the intermediate web.
Gemäß einer weiteren bevorzugten Ausführungsform ist das Hohlprofilelement im Querschnitt trapezförmig, wobei die Erstreckung des trapezförmigen Hohlprofilelements senkrecht zur Hauptebene des Stegelements auf Seite des ersten Vorsprungs des Stegelements kürzer als auf Seite der vom zweiten Gurtelement abgewandten Außenfläche des ersten Gurtelements ist. Bei dieser Ausführung nimmt daher die Erstreckung des Hohlprofilelements senkrecht zur Hauptebene des Stegelements, d.h. dessen Breite, von der Bodenwand zur Außenwand zu. Diese Ausführung hat den Vorteil, dass das Hohlprofilelement Befestigungselemente einer vorgegebenen, insbesondere normierten Breite aufnehmen kann, während die Bodenwand des Hohlprofilelements im Wesentlichen dieselbe Breite wie die Anlagefläche des Vorsprungs (oder die gesamte Breite mehrerer Vorsprünge einschließlich der Zwischenräume zwischen den Vorsprüngen) aufweisen kann.According to a further preferred embodiment, the hollow profile element is trapezoidal in cross-section, wherein the extension of the trapezoidal hollow profile element perpendicular to the main plane of the bar element on the side of the first projection of the bar element is shorter than on the side facing away from the second strap element outer surface of the first belt element. In this embodiment, therefore, the extension of the hollow profile element perpendicular to the main plane of the web element, ie its width, increases from the bottom wall to the outside wall. This embodiment has the advantage that the hollow profile element can accommodate fastening elements of a predetermined, in particular normalized width, while the bottom wall of the hollow profile element can have substantially the same width as the contact surface of the projection (or the entire width of a plurality of projections including the spaces between the projections).
Gemäß einer weiteren bevorzugten Ausführungsvariante ist zwischen dem ersten Verstärkungselement und dem ersten Vorsprung zumindest ein Zwischenelement vorgesehen, welches auf Seite des ersten Verstärkungselements eine größere Erstreckung senkrecht zur Hauptebene des Stegelementes als auf Seite des ersten Vorsprungs des Stegelements aufweist. Demnach verjüngt sich das Zwischenelement von der am Verstärkungselement anliegenden Außenseite in Richtung der am Vorsprung anliegenden Innenseite. Dadurch kann ein kontinuierlicher Übergang zwischen dem Verstärkungselement und dem zumindest einen Vorsprung des Stegelements geschaffen werden, wenn das Verstärkungselement, insbesondere aufgrund von Normen, eine größere Breite als der zumindest eine Vorsprung am Stegelement aufweisen soll. Vorzugsweise weist das Zwischenelement an der Innenseite im Wesentlichen dieselbe Breite wie der erste Vorsprung des Stegelements am freien Ende auf. Im Fall mehrerer Vorsprünge weist das Zwischenelement an der Innenseite vorzugsweise im Wesentlichen dieselbe Breite wie die Mehrzahl der Vorsprünge einschließlich der Zwischenräume zwischen den Vorsprüngen zusammen auf. Bei einer alternativen Ausführung sind mehrere Zwischenelemente vorgesehen, wobei je ein Zwischenelement an einem Vorsprung des Stegelements anliegt. Selbstverständlich können Zwischenelemente an beiden Gurtelementen des Schalungsträgers vorgesehen sein. Das Zwischenelement ist derart ausgebildet, dass die Lastübertragung von dem ersten Verstärkungselement in das Stegelement vermittelt wird. In einer bevorzugten Ausführung ist das Zwischenelement als eigenes Bauteil, insbesondere aus Metall oder Kunststoff, ausgebildet, welches zwischen dem ersten Verstärkungselement und dem ersten Vorsprung des Stegelements angeordnet ist. Alternativ kann das Zwischenelement einteilig mit dem ersten Verstärkungselement verbunden sein. Weiters kann als Zwischenelement eine Klebeverbindung zwischen dem ersten Verstärkungselement und dem ersten Vorsprung des Stegelements vorgesehen sein. Bei dieser Ausführung ist vorzugsweise ein im Querschnitt von außen nach innen zusammenlaufender, insbesondere trapezförmiger, Freiraum zwischen dem ersten Verstärkungselement und dem ersten Vorsprung des Stegelements vorgesehen, welcher mit Klebstoff befüllt ist. Sämtliche Ausführungen des Schalungsträgers mit dem Zwischenelement zwischen dem ersten Verstärkungselement und dem Stegelement bringen den Vorteil mit sich, dass das erste Verstärkungselement mit einer im Wesentlichen konstanten Breite zwischen der Außen- und der Innenseite ausgebildet sein kann. Dadurch kann das erste Verstärkungselement stabiler in dem ersten Gurtelement verankert werden als bei einer keilförmigen Ausbildung des ersten Verstärkungselements. Darüber hinaus kann eine Spaltbildung zwischen dem ersten Verstärkungselement und den angrenzenden Abschnitten des ersten Gurtelements vermieden werden.According to a further preferred embodiment variant, at least one intermediate element is provided between the first reinforcing element and the first protrusion, which on the side of the first reinforcing element has a greater extent perpendicular to the main plane of the web element than on the side of the first protrusion of the web element. Accordingly, the intermediate element tapers from the outer side which bears against the reinforcing element in the direction of the inner side resting against the projection. As a result, a continuous transition between the reinforcing element and the at least one projection of the bar element can be created if the reinforcing element, in particular due to standards, should have a greater width than the at least one projection on the bar element. Preferably, the intermediate element on the inside has substantially the same width as the first projection of the free-end support element. In the case of a plurality of protrusions, the intermediate member on the inside preferably has substantially the same width as the plurality of protrusions including the spaces between the protrusions together. In an alternative embodiment, a plurality of intermediate elements are provided, wherein each an intermediate element bears against a projection of the web element. Of course, intermediate elements may be provided on both belt elements of the formwork support. The intermediate element is designed such that the load transfer is imparted by the first reinforcing element into the web element. In a preferred embodiment, the intermediate element is designed as a separate component, in particular made of metal or plastic, which is arranged between the first reinforcing element and the first projection of the rod element. Alternatively, the intermediate element may be integrally connected to the first reinforcing element. Furthermore, an adhesive connection between the first reinforcing element and the first projection of the web element can be provided as intermediate element. In this embodiment, preferably a cross-section from outside to inside converging, in particular trapezoidal, free space between the first reinforcing element and the first projection of the bar member is provided, which is filled with adhesive. All embodiments of the formwork support with the intermediate element between the first reinforcing element and the web element have the advantage that the first reinforcing element can be formed with a substantially constant width between the outer and the inner side. As a result, the first reinforcing element can be anchored more stably in the first belt element than in a wedge-shaped embodiment of the first reinforcing element. In addition, a gap formation between the first reinforcing member and the adjacent portions of the first belt member can be avoided.
Zur Erzielung der Verjüngung des Zwischenelements zwischen dem Verstärkungs- und dem Vorsprung ist es günstig, wenn das Zwischenelement im Querschnitt trapezförmig ist. Je nach Ausführung können mehrere trapezförmige Zwischenelemente, insbesondere je ein trapezförmiges Zwischenelement pro Vorsprung des Stegelements, vorgesehen sein.In order to achieve the taper of the intermediate element between the reinforcing and the projection, it is advantageous if the intermediate element is trapezoidal in cross section. Depending on the design, a plurality of trapezoidal intermediate elements, in particular one trapezoidal intermediate element per projection of the bar element, may be provided.
Gemäß einer weiteren bevorzugten Ausführung ist das erste Verstärkungselement ein im Querschnitt volles Einsatzelement, welches vorzugsweise aus Metall, insbesondere Aluminium, Kunststoff, faserverstärktem Kunststoff oder einem vom Holzwerkstoff des ersten Gurtelements verschiedenes Holzmaterial, insbesondere Laubholz, Sperrholz oder Furnierschichtholz, gefertigt ist. Das vom Holzwerkstoff des ersten Gurtelements verschiedene Einsatzelement ist in der Ausnehmung des ersten Gurtelements aufgenommen, wobei das Material des Einsatzelements eine höhere Tragfähigkeit bzw. Steifigkeit als der erste Holzwerkstoff des ersten Gurtelements aufweist. Bevorzugt ist jeweils zumindest ein Einsatzelement in dem ersten und in dem zweiten Gurtelement vorgesehen. In manchen Fällen kann jedoch nur eines der Gurtelemente mit einem Verstärkungselement versehen sein. Wenn das Einsatzelement eine größere Breite als der erste Vorsprung des Stegelements aufweisen soll, ist bevorzugt ein Zwischenelement zwischen der Innenseite des Einsatzelements und dem freien Ende des ersten Vorsprungs des Stegelements vorgesehen. Die Ausführung des ersten Verstärkungselements als im Querschnitt volles Einsatzelement bringt insbesondere den Vorteil mit sich, dass Ansammlungen von Schmutz am ersten Gurtelement vermieden werden. Weiters ist vorteilhaft, dass das erste Verstärkungselement bei dieser Ausführung einen hohen Verformungswiderstand aufweist. Dies ist insbesondere dann von Vorteil, wenn der Schalungsträger beim Abbau der Schalung hart auf dem Untergrund aufprallt. Weiters ist günstig, dass das erste Verstärkungselement für eine Lastabtragung über dessen gesamte Breite eingerichtet ist.According to a further preferred embodiment, the first reinforcing element is a cross-sectionally full insert element, which is preferably made of metal, in particular aluminum, plastic, fiber-reinforced plastic or wood material different from the wood material of the first belt element wood material, in particular hardwood, plywood or veneer plywood. The insert element which is different from the wood material of the first belt element is received in the recess of the first belt element, wherein the material of the insert element has a higher bearing capacity or stiffness than the first wood material of the first belt element. Preferably, in each case at least one insert element is provided in the first and in the second belt element. In some cases, however, only one of the belt elements may be provided with a reinforcing element. If the insert element is to have a greater width than the first projection of the bar element, an intermediate element is preferably provided between the inside of the insert element and the free end of the first projection of the bar element. The execution of the first reinforcing element as a cross-sectionally full insert element brings in particular the advantage that accumulations of dirt on the first belt element are avoided. Furthermore, it is advantageous that the first reinforcing element in this embodiment has a high deformation resistance. This is particularly advantageous if the formwork beam bounces hard on the ground when dismantling the formwork. Furthermore, it is favorable that the first reinforcing element is arranged for a load transfer over its entire width.
Zur Kraftübertragung zwischen dem Verstärkungs- und dem Stegelement weisen das im Querschnitt volle Einsatzelement und der erste Vorsprung des Stegelements auf Seite der Anlageflächen zwischen dem Einsatzelement und dem ersten Vorsprung vorzugsweise im Wesentlichen dieselbe Erstreckung senkrecht zur Hauptebene des Stegelements auf. Demnach liegt das Einsatzelement vollflächig auf dem zumindest einen Vorsprung des Stegelements auf. Im Fall mehrerer Vorsprünge entspricht die Breite des Einsatzelements vorzugsweise der Breite der Mehrzahl von Vorsprüngen einschließlich der Zwischenräume zwischen den Vorsprüngen.For force transmission between the reinforcing and the web element, the insert element of full cross section and the first projection of the web element on the side of the contact surfaces between the insert element and the first projection preferably have substantially the same extent perpendicular to the main plane of the web element. Accordingly, the insert element lies on the entire surface on the at least one projection of the bar element. In the case of a plurality of protrusions, the width of the insert member preferably corresponds to the width of the plurality of protrusions including the spaces between the protrusions.
Gemäß einer bevorzugten Variante dieser Ausführungsform ist als Einsatzelement eine im Wesentlichen parallel zur Hauptebene des Stegelements angeordnete Verstärkungsplatte, insbesondere ein Flachprofil aus Metall, vorzugsweise aus Aluminium, vorgesehen, wobei vorzugsweise zumindest zwei Verstärkungsplatten an einer entsprechenden Anzahl von ersten Vorsprüngen des Stegelements anliegen. Bei dieser Ausführung ist die Ausnehmung des Gurtelements schlitzförmig ausgebildet, wobei die Verstärkungsplatte innerhalb der schlitzförmigen Ausnehmung des Gurtelements befestigt, insbesondere verklebt, ist. Bei einer Ausführung des Schalungsträgers mit zumindest zwei Flachprofilen ist vorteilhaft, dass der Abschnitt zwischen den beiden Flachprofilen zum Eintreiben von Nägeln genutzt werden kann.According to a preferred variant of this embodiment is provided as an insert element arranged substantially parallel to the main plane of the rod member reinforcing plate, in particular a flat profile made of metal, preferably made of aluminum, preferably at least two reinforcing plates bear against a corresponding number of first protrusions of the rod element. In this embodiment, the recess of the belt member slit-shaped, wherein the reinforcing plate within the slot-shaped recess of the belt member attached, in particular glued, is. In one embodiment of the formwork support with at least two flat profiles is advantageous that the portion between the two flat profiles can be used for driving nails.
Zur Verstärkung des Schalungsträgers über dessen Längserstreckung ist gemäß einer ersten bevorzugten Ausführung vorgesehen, dass sich das erste Verstärkungselement im Wesentlichen über die gesamte Länge des ersten Gurtelements erstreckt.To reinforce the formwork support over its longitudinal extent, it is provided according to a first preferred embodiment that the first reinforcement element extends substantially over the entire length of the first belt element.
Alternativ können mehrere erste Verstärkungselemente in Längsrichtung des ersten Gurtelements voneinander beabstandet sein. Bei dieser Ausführung sind anstelle eines durchgängigen Verstärkungselements in dem ersten bzw. zweiten Gurtelement einzelne erste bzw. zweite Verstärkungselemente vorgesehen, wobei sich dazwischen von ersten bzw. zweiten Verstärkungselementen freie Abschnitte des Schalungsträgers erstrecken.Alternatively, a plurality of first reinforcing elements may be spaced apart in the longitudinal direction of the first belt element. In this embodiment, instead of a continuous reinforcing element in the first and second belt element, individual first or second reinforcing elements are provided, with free sections of the formwork support extending therebetween from the first and second reinforcing elements.
Die Erfindung wird nachstehend anhand von in der Zeichnung dargestellten bevorzugten Ausführungsbeispielen, auf die sie jedoch nicht beschränkt sein soll, noch weiter erläutert. In der Zeichnung zeigt:
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Fig. 1a eine schaubildliche Ansicht einer Schalungskonstruktion mit mehreren erfindungsgemäßen Schalungsträgern in Form von Joch- und Querträgern, welche auf der einen Seite auf einer Stützeinrichtung aufgelagert sind und auf der anderen Seite Schalungsplatten tragen; -
Fig. 1b eine Detailansicht des inFig. 1a hervorgehobenen Details; -
Fig. 2 eine schaubildliche Ansicht des inFig. 1 ersichtlichen Schalungsträgers; -
Fig. 3 eine schaubildliche Ansicht eines Ausschnitts des Schalungsträgers gemäßFig. 2 ; -
Fig. 4 eine weitere Ansicht des Schalungsträgers gemäßFig. 1 ;bis 3 -
Fig. 5 eine schaubildliche Ansicht eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 6 eine schaubildliche Ansicht eines Ausschnitts des Schalungsträgers gemäßFig. 5 ; -
Fig. 7 eine weitere Ansicht des Schalungsträgers gemäßFig. 5, 6 ; -
Fig. 8 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 9 eine weitere Ansicht des Schalungsträgers gemäßFig. 8 ; -
Fig. 10 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 11 eine weitere Ansicht des Schalungsträgers gemäßFig. 10 ; -
Fig. 12 eine schaubildliche Ansicht eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 13 eine schaubildliche Ansicht eines Ausschnitts des Schalungsträgers gemäßFig. 5 ; -
Fig. 14 eine weitere Ansicht des Schalungsträgers gemäßFig. 12, 13 ; -
Fig. 15 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 16 eine weitere Ansicht des Schalungsträgers gemäßFig. 15 ; -
Fig. 17 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 18 eine weitere Ansicht des Schalungsträgers gemäßFig. 17 ; -
Fig. 19 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 20 eine weitere Ansicht des Schalungsträgers gemäßFig. 19 ; -
Fig. 21 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; -
Fig. 22 eine weitere Ansicht des Schalungsträgers gemäßFig. 21 ; -
Fig. 23 eine schaubildliche Ansicht eines Ausschnitts eines weiteren erfindungsgemäßen Schalungsträgers; und -
Fig. 24 eine weitere Ansicht des Schalungsträgers gemäßFig. 23 .
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Fig. 1a a perspective view of a formwork construction with several formwork beams according to the invention in the form of yoke and cross beams, which are superimposed on one side on a support means and on the other side formwork panels carry; -
Fig. 1b a detailed view of the inFig. 1a highlighted details; -
Fig. 2 a perspective view of the inFig. 1 apparent formwork support; -
Fig. 3 a perspective view of a section of the formwork support according toFig. 2 ; -
Fig. 4 a further view of the formwork support according toFig. 1 to 3 ; -
Fig. 5 a perspective view of another formwork support according to the invention; -
Fig. 6 a perspective view of a section of the formwork support according toFig. 5 ; -
Fig. 7 a further view of the formwork support according toFig. 5, 6 ; -
Fig. 8 a perspective view of a section of another formwork support according to the invention; -
Fig. 9 a further view of the formwork support according toFig. 8 ; -
Fig. 10 a perspective view of a section of another formwork support according to the invention; -
Fig. 11 a further view of the formwork support according toFig. 10 ; -
Fig. 12 a perspective view of another formwork support according to the invention; -
Fig. 13 a perspective view of a section of the formwork support according toFig. 5 ; -
Fig. 14 a further view of the formwork support according toFig. 12, 13 ; -
Fig. 15 a perspective view of a section of another formwork support according to the invention; -
Fig. 16 a further view of the formwork support according toFig. 15 ; -
Fig. 17 a perspective view of a section of another formwork support according to the invention; -
Fig. 18 a further view of the formwork support according toFig. 17 ; -
Fig. 19 a perspective view of a section of another formwork support according to the invention; -
Fig. 20 a further view of the formwork support according toFig. 19 ; -
Fig. 21 a perspective view of a section of another formwork support according to the invention; -
Fig. 22 a further view of the formwork support according toFig. 21 ; -
Fig. 23 a perspective view of a section of another formwork support according to the invention; and -
Fig. 24 a further view of the formwork support according toFig. 23 ,
In
Wie aus
Wie aus
Wie aus
Wie aus
Wie aus
Gemäß
In der Ausführung der
Gemäß
Wie aus
In der Ausführung der
Gemäß
Gemäß
In der Ausführungsform der
Gemäß
In der Ausführungsform der
In der Ausführungsform der
In der Ausführungsform der
Darüber hinaus ist das Stegelement 8 bei dieser Ausführung auf beiden Breitseiten mit Deckschichten 24 versehen. Die Deckschichten 24 liegen längsseitig an den einander zugewandten Außenflächen des ersten 6 bzw. zweiten Gurtelements 7 an. Je nach Ausführung können die Deckschichten 24 und das Stegelement 8 einteilig oder mehrteilig gebildet sein.In addition, the
In der Ausführungsform der
In der Ausführungsform der
Claims (15)
- Formwork support (3) comprising a first flange element (6) made of a wood material, a second flange element (7) made of a wood material and a web element (8) connecting the first flange element (6) to the second flange element (7) and made of another wood material, the web element (8) being planar, the main plane of the web element (8) being substantially perpendicular to the main plane of the first flange element (6) and second flange element (7), the web element (8) comprising, on one longitudinal side, at least one first projection (9), extending in the longitudinal direction of the web element (8), for connection to the first flange element (6) and/or, on the other longitudinal side, at least one second projection (10) for connection to the second flange element (7), and comprising at least one first reinforcing element (11) which extends in the longitudinal direction (5) of the first flange element (6) and is arranged in a corresponding recess (12) in the first flange element (6), the at least one first reinforcing element (11) being arranged substantially completely between the outer surfaces of the first flange element (6), such that the at least one first reinforcing element (11) does not protrude beyond one of the outer surfaces of the first flange element (6), characterised in that either the at least one first reinforcing element (11) directly abuts the at least one first projection (9) of the web element (8) or an intermediate element (22) that is different from the wood material of the first flange element (6) is arranged between the at least one first reinforcing element (11) and the at least one first projection (9) of the web element (8), the at least one first reinforcing element (11) ending substantially flush with the outer surface of the first flange element (6) that is remote from the second flange element (7).
- Formwork support (3) according to claim 1, characterised in that at least one second reinforcing element (13) extending in the longitudinal direction (5) of the second flange element (7) is arranged in a corresponding recess (14) in the second flange element (7), either the at least one second reinforcing element (13) directly abutting the at least one second projection (10) of the web element (8) or an intermediate element (22) that is different from the wood material of the second flange element (7) being arranged between the at least one second reinforcing element (13) and the at least one second projection (10) of the web element (8).
- Formwork support (3) according to either claim 1 or claim 2, characterised in that the at least one second reinforcing element (13) extends between the second projection (10) of the web element (8) and the outer surface (7') of the second flange element (7) that is remote from the first flange element (6).
- Formwork support (3) according to any of claims 1 to 3, characterised in that a hollow profile element (17) which is in particular rectangular or trapezoidal in cross section and which has a bottom wall (18) abutting the first projection (9) of the web element (8) is provided as the first reinforcing element (11).
- Formwork support (3) according to claim 4, characterised in that the hollow profile element (17) has at least one retaining opening (21) for arranging a fastening element, the retaining opening (21) of the hollow profile element (17) extending preferably in the longitudinal direction (5) of the first flange element (6), in particular in the plane of the outer surface (6') of the first flange element (6).
- Formwork support (3) according to claim 5, characterised in that the hollow profile element (17) has a retaining opening (21) extending substantially in the plane of the outer surface (6') of the first flange element (6), the hollow profile element (17) comprising an intermediate web (26), in particular having an additional retaining opening (27), between the outer surface (6') of the first flange element (6) and the bottom wall (18) of the hollow profile element (17).
- Formwork support (3) according to any of claims 4 to 6, characterised in that the hollow profile element (17) is trapezoidal in cross section, the extension of the trapezoidal hollow profile element (17) perpendicularly to the main plane of the web element (8) being shorter on the side with the first projection (9) of the web element (8) than on the side with the outer surface (6') of the first flange element (6) that is remote from the second flange element (7).
- Formwork support (3) according to any of claims 1 to 7, characterised in that the at least one intermediate element (22) has a larger extension perpendicularly to the main plane of the web element (8) on the side with the first reinforcing element (11) than on the side with the first projection (10) of the web element (8).
- Formwork support (3) according to claim 8, characterised in that the intermediate element (22) is trapezoidal in cross section.
- Formwork support (3) according to any of claims 1 to 9, characterised in that the first reinforcing element (11) is an insert element (16) which is solid in cross section and is preferably made of metal, in particular aluminium, plastics material, fibre-reinforced plastics material or a wood material that is different from the wood material of the first flange element (6), in particular hardwood, plywood or laminated veneer lumber.
- Formwork support (3) according to claim 10, characterised in that the insert element (16) that is solid in cross section and the first projection (9) of the web element (8) have substantially the same extension perpendicularly to the main plane of the web element (8) on the side with the contact surfaces between the insert element (16) and the first projection (9).
- Formwork support (3) according to either claim 10 or claim 11, characterised in that a reinforcing plate arranged substantially in parallel with the main plane of the web element, in particular a flat profile made of metal, preferably of aluminium, is provided as the insert element (16), preferably at least two reinforcing plates abutting a corresponding number of first projections (9) of the web element (8).
- Formwork support (3) according to any of claims 1 to 12, characterised in that the first reinforcing element (11) extends substantially over the entire length of the first flange element (6).
- Formwork support (3) according to any of claims 1 to 12, characterised in that a plurality of first reinforcing elements (11) are mutually spaced in the longitudinal direction (5) of the first flange element (6).
- Formwork structure (1), which is designed in particular for the production of a ceiling, comprising a plurality of support elements (2) on which formwork supports (3) are mounted, by means of which further formwork supports (3) extending transversely thereto are supported, on the upper face of which further formwork supports formwork panels (4) are arranged, characterised in that at least one of the formwork supports (3) is designed according to any of claims 1 to 14.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP15151931 | 2015-01-21 | ||
PCT/EP2016/051180 WO2016116532A1 (en) | 2015-01-21 | 2016-01-21 | Formwork support and formwork construction |
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EP3247842B1 true EP3247842B1 (en) | 2019-10-02 |
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EP (1) | EP3247842B1 (en) |
CN (1) | CN205637585U (en) |
WO (1) | WO2016116532A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3228778A1 (en) * | 2016-04-08 | 2017-10-11 | DOKA GmbH | Formwork girder and formwork structure with such a formwork girder |
US10053875B1 (en) * | 2017-07-10 | 2018-08-21 | Doka Gmbh | Formwork support system and formwork support prop |
US10407925B2 (en) | 2017-07-10 | 2019-09-10 | Doka Gmbh | Method of installing a formwork support system, formwork support system and longitudinal beam |
US10487521B2 (en) * | 2017-07-10 | 2019-11-26 | Doka Gmbh | Formwork support system and method of installing a formwork support system |
EP3719237B1 (en) * | 2019-04-03 | 2022-11-30 | DOKA GmbH | Formwork girder, formwork girder device and ceiling formwork |
DE202020100700U1 (en) * | 2020-02-10 | 2021-02-11 | Peri Gmbh | Equalizing beam |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2350339A1 (en) * | 1973-10-06 | 1975-04-10 | Lcm Corp | Wooden construction element for high-rise buildings - consists of two planks with castellated edges cut from one plank |
FR2373654A1 (en) * | 1976-12-07 | 1978-07-07 | Allombert Georges | Composite timber steel beam for formwork - has I=section with steel T=sections built into joints of timber flanges and plywood web |
SE449887B (en) * | 1983-12-20 | 1987-05-25 | Axel Bert Roger Ericsson | BEAM |
DK0667426T3 (en) * | 1994-02-10 | 1999-11-01 | Timmermann Friedrich | Grating construction, especially a roof rafter or hall built of glulam |
DE9421250U1 (en) * | 1994-04-21 | 1995-08-31 | Doka Industrie Gmbh, Amstetten | Ceiling formwork system for formwork ceilings |
FR2747708B1 (en) * | 1996-04-22 | 1998-09-18 | Malvy Martial | WOODEN BEAM OR THE LIKE FOR A CONSTRUCTION STRUCTURE |
FI116089B (en) * | 2000-07-27 | 2005-09-15 | Johan Tore Karlstroem | Device and procedures for controls |
-
2016
- 2016-01-20 CN CN201620054817.1U patent/CN205637585U/en active Active
- 2016-01-21 WO PCT/EP2016/051180 patent/WO2016116532A1/en active Application Filing
- 2016-01-21 EP EP16701280.6A patent/EP3247842B1/en active Active
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CN205637585U (en) | 2016-10-12 |
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