EP3247842A1 - Support de coffrage et structure de coffrage - Google Patents

Support de coffrage et structure de coffrage

Info

Publication number
EP3247842A1
EP3247842A1 EP16701280.6A EP16701280A EP3247842A1 EP 3247842 A1 EP3247842 A1 EP 3247842A1 EP 16701280 A EP16701280 A EP 16701280A EP 3247842 A1 EP3247842 A1 EP 3247842A1
Authority
EP
European Patent Office
Prior art keywords
belt
reinforcing
formwork
formwork support
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.)
Granted
Application number
EP16701280.6A
Other languages
German (de)
English (en)
Other versions
EP3247842B1 (fr
Inventor
Gregor Wenighofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doka GmbH
Original Assignee
Doka GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doka GmbH filed Critical Doka GmbH
Publication of EP3247842A1 publication Critical patent/EP3247842A1/fr
Application granted granted Critical
Publication of EP3247842B1 publication Critical patent/EP3247842B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 having a first strap element from a wood material, a second strap element from a wood material and a first belt member to the second chord member interconnecting web member, said Stegele ⁇ element on one longitudinal side at least one first projection for communicating with the first belt member and / or on the other longitudinal side has at least one second projection for connection to the second belt element, and with at least one extending in the longitudinal direction of the first belt member first reinforcing element, which is arranged in a corresponding recess of the first belt member.
  • the invention relates to a formwork construction, which is particularly adapted for the production of a ceiling, with a plurality of support elements, on which formwork supports are supported, with which further, extending transversely Scha ⁇ lung carrier are supported, are arranged on the top Schalungsplat ⁇ th.
  • Shutterings with an I-shaped cross section are shown, for example, in DE 103 05 613 B4 or in DE 1 958 002.
  • 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 two ⁇ th wood material.
  • Such formwork supports are used in structural engineering for supporting shuttering panels, with which a concrete ceiling is produced.
  • the Schalungsträ ⁇ ger be supported here on a support device in the form of ceiling props. In the installed state, the saddle ⁇ lung carrier are exposed to high operating loads which act on the slabs forth on the formwork carrier. Accordingly, a high load capacity of the formwork support is required.
  • US 5,050,366 describes a wooden beam consisting of several layers of wood reinforced with several metal bars.
  • the object of the present invention is to provide a formwork support of the type mentioned, with which the disadvantages of the prior art be ⁇ sided 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 due to at least a first protrusion of the bar element, at least a first Verstärkungsele ⁇ ment to the.
  • the load-bearing capacity of the formwork support is improved ver ⁇ that the duri in the longitudinal direction of the formwork support dur ⁇ fende first reinforcing element on the inside of the first projection of the web ⁇ Strangements, with which the web element is anchored in the wood material of the first belt element.
  • the system of the first gain element at the first projection of the bar element means that the first reinforcing member without the interposition of the wood material of said first chord member ⁇ factory is connected with the first projection of the bar element. Accordingly, the first reinforcing element on the one hand bear directly against the first projection of the web element.
  • the first reinforcement member is preferably arranged substantially completely between the surfaces of the firsttechnischflä ⁇ chord member so that the first Ver ⁇ reinforcing element does not project over one of the outer surfaces of the first chord member.
  • the first Ver includes ⁇ reinforcing element also flush with the outer surface of the first chord member from.
  • the arrangement of the first gain element in the correspondingly shaped recess of the first chord member has the advantage that the first reinforcing element angrei ⁇ fenden loads directly, that is removed without the intervention or intermediate layer of the wood material of said first chord member, from the first Ver ⁇ reinforcing element in the web element which is connected on the other side with the second belt element.
  • the loading of the outer surface of the first belt element can be done by placing on a support means, in particular in the form of ceiling supports, by resting on another formwork support or by the load on a resting formwork ⁇ plate.
  • the direct connection of the first reinforcing element to the web element can increase the load capacity of the formwork support.
  • the first Verstär ⁇ effect element is formed from a wood material from the first Gurtele ⁇ ments, in particular softwood, different material.
  • the first reinforcing element is preferably formed of a metal, for example aluminum, a plastic, or a fiber-reinforced plastic.
  • the first reinforcement member may alternatively be manufactured from a material different from wood material of said first chord member wood material which is in particular in the direction perpendicular to the resilient outer surface of the first chord member as the wood material of the first Gur ⁇ wick member.
  • the wood material of the first reinforcing element perpendicular to the outer surface of the first Gur ⁇ telement, ie in the loading direction have arranged wood layers.
  • the wood material of the first reinforcement elements Ver ⁇ plywood or laminated veneer lumber may be a plurality of layers or plies of the plywood or the laminated veneer wood that are parallel to the main plane of the web element, extending in the loading direction.
  • the first Verstärkungsele ⁇ ment is fi xed ⁇ within the recess of the first chord member.
  • an adhesive or glue joint or ei ⁇ ne mechanical connection between the first Verstärkungsele ⁇ ment and the wood material of the first belt member is provided.
  • the adhesive or glue joint may be provided on the side walls of the first reinforcing member, but also on the the web element supplied ⁇ turned inside of the first reinforcing member.
  • the first projection of the web element in a correspondingly shaped recess of the ers ⁇ th chord member may be fixed, in particular glued or glued, but also be mechanically connected.
  • the first protrusion is preferably substantially completely located within the first chord member, whereas the corresponding longitudinal side of the bar element on the side facing the second belt member Au ⁇ z Formation of the first chord member is applied.
  • 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 Verstär ⁇ effect element in the first belt member contacts the first protrusion of the bar element, preferably over substantially the entire length of the bar element so that a uniform load ⁇ ablation over the length of the formwork support is achieved.
  • the tensile strength of the first belt element can be substantially increased.
  • the carrying capacity for bending moments can be improved.
  • an increase in the rigidity of the shuttering ⁇ carrier could be detected, whereby the absorption of shear forces could be improved.
  • the inventive arrangement of the first reinforcing member significantly increases the bearing resistance of the formwork support.
  • both the belt members are provided with reinforcing elements which are associated with the projections at the two opposite longitudinal sides of the bar element in such a way in connection that a Lastabtra ⁇ supply is achieved from one side of the formwork support to the other side of the formwork support.
  • the second amplification Kung element may be designed according to the first reinforcing element.
  • first reinforcing element can equally be implemented in the first and / or in the second reinforcing element.
  • an effective load transfer from the first reinforcing member in the first chord member across the web member to the second Verstärkungsele ⁇ ment can be accomplished in the second chord member.
  • 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 be reliably transmitted in the vertical direction from one longitudinal side of the formwork support to the other longitudinal side of the formwork support. Over it ⁇ out of the formwork support can also be used in a wall formwork.
  • the first reinforcing element between the first projection of the web member and the second belt element facing away from the outer surface of the first belt member and the at least ⁇ a second reinforcing element between the second projection of the rod member and the serve ⁇ from the first belt member outer surface of the second belt member is extended.
  • the reinforcing elements in the materiality ⁇ union are flush with the outer surfaces of the belt members.
  • 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.
  • a cross-section in particular rectangular or trapezoidal-shaped hollow profile member is provided as a first reinforcing member which has a protrusion on the first of the bar element on ⁇ lying bottom wall.
  • the second belt member may be also formed as a hollow profile element, which is preferably in the We ⁇ sentlichen identical to the first reinforcing member.
  • 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 before ⁇ cracks comprises a plurality of, preferably, all of the projections
  • the hollow profile element has two longitudinal side walls and an outer wall, which close 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 into which terminal elements, in particular buildin ⁇ actuating elements, can be accommodated.
  • the hollow profile element has at least one holding opening for arranging a Befest Trentsele ⁇ ment, wherein the holding opening of the hollow profile element preferably in the longitudinal direction of the first Gurtelements, in particular in the plane of the outer surface of the first Gurtelements, he stretched ⁇ .
  • 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.
  • the hollow profile element can be used with the holding opening for connection to a steel wall bolt.
  • the embodiment as a hollow profile element with Garöff ⁇ tion has the particular advantage that the connection of Sys ⁇ temkomponenten 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 Stützele ⁇ ment, 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 member preferably has a larger extension than the L Lucasser ⁇ further retaining opening in the gutter.
  • 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 rod element on the side of the first projection of the web element ⁇ shorter than on the side of the second belt element derand ⁇ th outer surface of the first belt element.
  • Ausry ⁇ tion therefore increases the extension of the hollow profile element senk ⁇ right to the main plane of the web element, ie its width, from the bottom wall to the outer wall.
  • This embodiment has the Prior ⁇ part, that the hollow profile element can accommodate fasteners of a given before ⁇ , in particular the normalized width, while the bottom wall of the hollow profile member is substantially the ⁇ same width as the contact surface of the projection (or ge ⁇ entire width a plurality of protrusions, including the Eisenhoff ⁇ me between the projections) may have.
  • At least an intermediate member between the first reinforcing member and the first protrusion which the first pre ⁇ having on side of the first reinforcement member a greater extent perpendicular to the main plane of the web element as a page jump of the bar element. Accordingly, the intermediate member is tapered on the applied to the reinforcement member Au ⁇ .seite in the direction of the projection resting against the inside. 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 substantially the same pulp ⁇ te as the first projection of the bar element at the free end.
  • the intermediate element on the inner side in ⁇ preferably substantially the same width as the plurality of protrusions, including the spaces between the projections 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 construction ⁇ part, in particular of metal or plastic, wel ⁇ ches between the first reinforcing element and the first projection of the rod element is arranged.
  • the interim ⁇ rule element can be integral with the first reinforcing member ver ⁇ prevented.
  • a Klebeverbin ⁇ dung may be provided between the first reinforcing member and the first projection of the web element as an intermediate element.
  • a preferably in cross-section from the outside to the inside converging, in particular trapezoidal, free space between the first reinforcing element and the first projection of Stegele ⁇ ment is provided, which is filled with adhesive.
  • All embodiments of the formwork support with the intermediate element Zvi ⁇ rule the first gain element and the web element bring about the advantage that the first reinforcement member with egg ⁇ ner substantially constant width can be formed between the outer and inner sides.
  • 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 interim ⁇ rule element in cross section is trapezoidal.
  • several trapezoidal intermediate elements in particular each a trapezoidal intermediate element per projection of Stegele ⁇ ments may be provided.
  • the first reinforcing element is a cross-sectionally full insert element, wel ⁇ ches preferably made of metal, in particular aluminum, art ⁇ fabric, fiber reinforced plastic or a different wood material of the first belt element wood material, especially hardwood, plywood or veneer plywood ,
  • the different from the wood material of said first chord member inserts is ⁇ lementêtnom- in the recess of the first chord member men, wherein the material of the insert element has a higher Tragfä ⁇ ability or rigidity than the first wood material of the first belt member.
  • Preference is in each case at least one ⁇ A set element in the first and provided in the second chord member see ⁇ . In some cases, however, only one of the belt elements may be provided with a reinforcing element.
  • the inserts shall ⁇ lement have a greater width than the first protrusion of the Stegele ⁇ ments, an intermediate element between the inside of the insert member and the free end of the f ⁇ th projection of the web element is preferably provided.
  • the execution of the first gain element as a cross-section full inserts ⁇ lement involves in particular the advantage that Ansammlun ⁇ of dirt be avoided on the first chord member.
  • 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 reinforcement member is arranged for a Lastabtra ⁇ supply over its entire width.
  • the insert member is vollflä ⁇ chig on to the at least one projection of the bar element.
  • the width of the ele ⁇ ments preferably corresponds to the width of the plurality of protrusions, including the spaces between the projections.
  • 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 Gurtele- formed slit-shaped element, wherein the reinforcing plate in the slot-shaped recess of the belt member befits ⁇ taken, in particular glued is.
  • the Scha ⁇ ment carrier with at least two flat profiles is advantageous that the portion between the two flat profiles can be used for driving nails.
  • first reinforcing members may be spaced apart in the longitudinal direction of the first chord member ⁇ .
  • individual first or second reinforcing elements are provided, with free sections of the formwork support extending therebetween from the first and second reinforcing elements.
  • 1a is 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 supported on one side on a support means and on the other side formwork panels carry;
  • Fig lb shows a detail view of the highlighted in Figure la De ⁇ tails..
  • FIG. 2 is a perspective view of the formwork support shown in FIG. 1;
  • FIG. 2 is a perspective view of the formwork support shown in FIG. 1;
  • FIG. 3 is a perspective view of a portion of the damage lung carrier according to FIG. 2;
  • FIGS. 1 to 3 shows a further view of the formwork support according to FIGS. 1 to 3;
  • FIG. 5 is a perspective view of another erfindungsge ⁇ MAESSEN formwork support.
  • FIG. 6 is a perspective view of a detail of the Scha ⁇ ment carrier according to FIG. 5.
  • FIGS. 5, 6 shows a further view of the formwork support according to FIGS. 5, 6;
  • Figure 8 is a perspective view of a section of a white ⁇ direct formwork support according to the invention.
  • FIG. 9 shows a further view of the formwork support according to FIG. 8;
  • FIG. 10 is a perspective view of a detail of a white ⁇ form inventive formwork support
  • FIG. 11 shows a further view of the formwork support according to FIG. 10;
  • FIG. 13 is a perspective view of a detail of the Scha ⁇ ment carrier according to FIG. 5.
  • FIGS. 12, 13 shows a further view of the formwork support according to FIGS. 12, 13;
  • Fig. 15 is a perspective view of a section of a fur ⁇ direct formwork support according to the invention.
  • FIG. 16 shows a further view of the formwork support according to FIG. 15;
  • FIG. 17 is a perspective view of a detail of a white ⁇ form inventive formwork support.
  • FIG. 18 shows a further view of the formwork support according to FIG. 17;
  • Figure 19 is a perspective view of a section of a white ⁇ direct formwork support according to the invention.
  • FIG. 20 shows a further view of the formwork support according to FIG. 19;
  • Figure 21 is a perspective view of a section of a white ⁇ direct formwork support according to the invention.
  • FIG. 22 shows a further view of the formwork support according to FIG. 21;
  • Figure 23 is a perspective view of a section of a white ⁇ direct formwork support according to the invention.
  • FIG. 24 shows a further view of the formwork support according to FIG. 23.
  • FIG. 24 shows a further view of the formwork support according to FIG. 23.
  • a formwork construction 1 is shown, which is set up in the embodiment shown for producing a ceiling.
  • the formwork construction 1 has several Stützenele ⁇ elements 2, which are supported on the ground.
  • Similar formwork supports 3 are superimposed, with which further, running transversely thereto formwork supports 3 till ⁇ 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 on the top of the cross member forming formwork 3 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. When installed, the formwork supports 3 are loaded perpendicular to its longitudinal direction 5 (shown in FIG. 2).
  • each formwork support 3 has a longitudinal direction 5 Stretched first belt element 6 consisting of a wood material and a longitudinally 5 extended second belt element 7 be ⁇ standing from a wood 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 formed 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 shown Deckenscha ⁇ ment, the web element 8 is therefore directed vertically out ⁇ in the installed state.
  • the first 6 and second chord member 7 have a large ⁇ ßere width, ie the dimension perpendicular to the main plane
  • the first belt member 6 is made of a first wood ⁇ material
  • the second belt member 7 made of a second woodwork ⁇ material.
  • the first 6 and the second belt elements 7 are made of the same wood material, in particular needle ⁇ wood.
  • the web element 8 has on one longitudinal side at least one first projection or prongs 9, which engages in a corresponding recess of the first belt element 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 ⁇ carrier 3 further comprises at least one of the first Gur in the longitudinal direction 5 Telements 6 extended first reinforcing element 11, wel ⁇ Ches is arranged in a correspondingly shaped recess 12 of the first belt member 6.
  • first reinforcing elements 11 are provided.
  • the first Ver ⁇ reinforcing element 11 extends between the outer surface facing away from the second chord member 7 6 'of the first chord member 6 and the first protrusion 9 of the bar element 9.
  • the first reinforcing member 11 with the first protrusion 9 of the bar element 8 in contact, whereby a direct load transfer between the outer surface 6 ⁇ of the first belt member 6 is accomplished via the first reinforcing member 11 in the web element 8.
  • the formwork ⁇ carrier 3 further comprises at least one réellerecktes in the longitudinal direction 5 of the second chord member 7 second reinforcing member 13, wel ⁇ ches is disposed in a corresponding recess 14 of the second chord member 7.
  • two second reinforcing elements 13 are provided.
  • the second Verstär ⁇ effect element 13 extends between the second projection 10 of the bar element 8 and the outer surface facing away from the first belt member 6 7 'of the second chord member 7, so that the second reinforcement member 13 on one longitudinal side of the second pre ⁇ recess 10 of the bar element 8 contacted and exposed on the other longitudinal side on the outer surface 7 'of the second belt member 7.
  • Fig. La lb can be seen, can in the formwork structure 1 conventional formwork support 3 without amplification ⁇ elements 11, 13, and in Fig. 2 et seq. Shown formwork beam 3 with reinforcing elements 11, 13 are combined.
  • the Joch the formwork construction 1 by formwork support 3 with reinforcing elements 11, the cross member partly by formwork 3 without reinforcing elements 11, 13, partly by formwork 3 with Verstärkungsele ⁇ ments 11, 13 are formed.
  • the first 11 and second Verstärkungsele- ment 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.
  • the insert elements 16 rest against the projections 10 over the whole area.
  • the insert elements 16 are designed as reinforcing plates, which are arranged substantially parallel to the main plane of the bar element 8, that is, vertically in the case of De ⁇ ckenschalung shown in FIG. La in the installed state.
  • the insert elements 16 are preferably made of metal, in ⁇ particular aluminum, plastic, fiber-reinforced plastic o- a wooden material, in particular plywood or veneer plywood.
  • two ⁇ tes reinforcing element are the first 11 and 13 are provided in cross-section rectangular hollow section ⁇ filicide 17th
  • the hollow profile elements 17 have a voltage applied to the first 9 and second projection 10 of the support member 8 bottom wall 18 of which upstanding, mutually parallel side walls 19 and a substantially in the plane of the outer surface 6 'of the first belt member 6 extended outer ⁇ wall 20 ,
  • 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 of the web member 8, respectively.
  • the intermediate elements 22 are extended in the longitudinal direction 5 of the formwork support 3 and run in each case from the voltage applied to the hollow profile element 17 Au ⁇ .seite to the voltage applied to the first 9 and second projections 10 inside together.
  • In the illustrated embodiment 22 have the intermediate elements in cross section trapezoidal From ⁇ cuts.
  • 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 Freiaki between the hollow profile elements 17 and the first 9 and second projections 10 of the support member 8 is formed, wel ⁇ che filled with adhesive.
  • a ⁇ pieces can be combined onnectivity with the hollow profile elements 17 connected intermediate elements 22 with adhesive (not shown).
  • the hollow profile elements 17 have a plurality of longitudinally spaced 5 holding holes 21, to which fastening elements, for example hammer-head screw ⁇ mounted for various connection elements Kgs ⁇ NEN.
  • 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.
  • the holding openings 21 of the hollow profile elements 17 extend essentially over the entire length of the first belt element 6 or of the second belt element 7.
  • intermediate elements 22 are likewise provided between the first reinforcing element 11 and the first protrusions 9 or between the second reinforcing element 13 and the second protrusions 10.
  • the intermediate elements 22 are trapezoidal in cross-section.
  • 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 Gur ⁇ sliding element 6 in this embodiment of first reinforcement elements 11 free portions which, for example, the same countries ge how 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 ent ⁇ speaking recesses 14 of the second belt member 6.
  • the holding openings 21 extend over the entire length of the first 11 and second reinforcing elements 13.
  • the first 11 and second reinforcing elements 13 are rectangular in cross-section, wherein the width of the bottom wall ⁇ 18 of the first 11 or second reinforcing elements 13 in the illustrated embodiment of the total width of the first 9 or
  • 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 Verstär ⁇ effect element 13 rectangular Hohlprofilele ⁇ elements 17 are provided in cross-section, which abut with the bottom walls 18 the full surface of the first 9 and second protrusion 10 degrees.
  • the hollow profile elements 17 also on the outer walls 20 in the inner cavity projecting flanges 23.
  • the formwork support according a first 11 and a second reinforcing member 13, which are formed by full cross-sectional insert elements 16, insbeson ⁇ particular from metal, preferably aluminum.
  • 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 having a plurality of wood plies 25.
  • the wood plies 25 of the plywood insert element 16 are substantially parallel to the main plane of the piling element 8, i. in the installed operating state of the formwork support 3 is substantially vertical.
  • 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 have an intermediate web 26 which is substantially parallel to the bottom wall 18 and to the outer wall 20, respectively.
  • the outer wall has a continuous longitudinal opening 5 stops 21, wherein the intermediate web 26 comprises a plurality of spaced apart in the longitudinal direction ⁇ 5 more retaining openings 27th

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

Support de coffrage (3) comportant un premier élément de membrure (6) en matériau dérivé du bois, un deuxième élément de membrure (7) en matériau dérivé du bois, un élément de liaison (8) reliant le premier élément de membrure (6) au deuxième élément de membrure (7), l'élément de liaison (8) présentant sur un côté long au moins une première saillie (9) pour la liaison avec le premier élément de membrure (6) et/ou sur l'autre côté long au moins une deuxième saillie (10) pour la liaison avec le deuxième élément de membrure (7), et au moins un premier élément de renforcement (11) s'étendant dans la direction longitudinale (5) du premier élément de membrure (6), disposé dans un évidement correspondant (12) du premier élément de membrure (6), le au moins un premier élément de renforcement (11) s'appuyant contre la au moins une première saillie (9) de l'élément de liaison (8).
EP16701280.6A 2015-01-21 2016-01-21 Poutres de coffrage et construction de coffrage Active EP3247842B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15151931 2015-01-21
PCT/EP2016/051180 WO2016116532A1 (fr) 2015-01-21 2016-01-21 Support de coffrage et structure de coffrage

Publications (2)

Publication Number Publication Date
EP3247842A1 true EP3247842A1 (fr) 2017-11-29
EP3247842B1 EP3247842B1 (fr) 2019-10-02

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EP16701280.6A Active EP3247842B1 (fr) 2015-01-21 2016-01-21 Poutres de coffrage et construction de coffrage

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EP (1) EP3247842B1 (fr)
CN (1) CN205637585U (fr)
WO (1) WO2016116532A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228778A1 (fr) * 2016-04-08 2017-10-11 DOKA GmbH Support de coffrage et construction de coffrage comprenant un tel support de coffrage
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
US10053875B1 (en) * 2017-07-10 2018-08-21 Doka Gmbh Formwork support system and formwork support prop
EP3719237B1 (fr) * 2019-04-03 2022-11-30 DOKA GmbH Support de coffrage, dispositif de support de coffrage et coffrage de plafond
DE202020100700U1 (de) * 2020-02-10 2021-02-11 Peri Gmbh Ausgleichsträger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2350339A1 (de) * 1973-10-06 1975-04-10 Lcm Corp Bauelement, insbesondere aus holz
FR2373654A1 (fr) * 1976-12-07 1978-07-07 Allombert Georges Poutrelle en bois arme
SE449887B (sv) * 1983-12-20 1987-05-25 Axel Bert Roger Ericsson Balk
ATE180033T1 (de) * 1994-02-10 1999-05-15 Timmermann Friedrich Fachwerkkonstruktion, insbesondere dachtragwerk oder halle in holzleimbauweise
DE9421250U1 (de) * 1994-04-21 1995-08-31 Doka Industrie Gmbh, Amstetten Deckenschalungssystem zum Einschalen von Decken
FR2747708B1 (fr) * 1996-04-22 1998-09-18 Malvy Martial Poutre en bois ou analogue pour structure de construction
FI116089B (sv) * 2000-07-27 2005-09-15 Johan Tore Karlstroem Anordning och förfaranden vid reglar

Also Published As

Publication number Publication date
CN205637585U (zh) 2016-10-12
WO2016116532A1 (fr) 2016-07-28
EP3247842B1 (fr) 2019-10-02

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