EP0796961A1 - Système d'armature pour éléments en béton cellulaire - Google Patents

Système d'armature pour éléments en béton cellulaire Download PDF

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Publication number
EP0796961A1
EP0796961A1 EP97104719A EP97104719A EP0796961A1 EP 0796961 A1 EP0796961 A1 EP 0796961A1 EP 97104719 A EP97104719 A EP 97104719A EP 97104719 A EP97104719 A EP 97104719A EP 0796961 A1 EP0796961 A1 EP 0796961A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
longitudinal
bars
arrangement according
arrangement
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
EP97104719A
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German (de)
English (en)
Other versions
EP0796961B1 (fr
Inventor
Winkler Horst
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.)
Europor MASSIVHAUS GmbH
Original Assignee
Europor MASSIVHAUS GmbH
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Filing date
Publication date
Application filed by Europor MASSIVHAUS GmbH filed Critical Europor MASSIVHAUS GmbH
Publication of EP0796961A1 publication Critical patent/EP0796961A1/fr
Application granted granted Critical
Publication of EP0796961B1 publication Critical patent/EP0796961B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars

Definitions

  • the invention relates to a reinforcement arrangement for aerated concrete components of the type mentioned in the preamble of claim 1.
  • aerated concrete components in particular aerated concrete slabs, with reinforcements which increase the load-bearing capacity.
  • the slabs In addition to the main reinforcement to be positioned in the lower third of the slab thickness, which essentially consists of longitudinal bars that absorb the tensile stresses that occur in the installed position, due to the stress during transport, the slabs must also contain sufficient upper reinforcement in their compression zone, which is also primarily of longitudinal bars is formed.
  • the bars In order to be able to transmit the tensile forces occurring on the individual bars to the aerated concrete, the bars must be anchored in the aerated concrete mass. In contrast to heavy concrete, it is not sufficient to provide the surface of the bars with grooves or waves that enable a positive and non-positive connection to the concrete. Rather need to start with aerated concrete the longitudinal bars are welded cross bars, the number of which results from the tensile force of each bar of the main reinforcement, the diameter of the cross bars and the compressive strength of the aerated concrete. The spacing and diameter of the crossbars must be selected so that at least half of the tensile force to be anchored is transferred to the concrete on a distance that is at most equal to four times the plate thickness from the end of the plate.
  • aerated concrete components have been manufactured which have a cross bar density over their entire length, as is actually only required at the support ends. Although this enables subsequent shortening to any length, it increases the material and manufacturing costs considerably.
  • Another problem with conventional reinforcement arrangements is that the anchoring of the tension rods via the cross rods in the aerated concrete in the area of the slab heads often results in splitting. If you try to counter this by using additional brackets that connect the upper and lower chords in these areas to prevent cracking, in this way a aerated concrete component with a predetermined length is obtained again, which must not subsequently be shortened by cuts running in the transverse direction.
  • the invention has for its object to develop a reinforcement arrangement of the type mentioned so that a subsequent shortening of the components without deterioration in their statics is easily possible and thus do not significantly increase the manufacturing and material costs.
  • the reinforcement is also possible to design the reinforcement as a space framework with load-bearing effect in all directions.
  • the respective reinforcement arrangement is continuously continuous in the longitudinal direction, that is to say in the middle of the slab there is no other arrangement or distribution of its elements than in the area of the support ends, without this a substantial oversizing or even more expensive would be connected.
  • Subsequent shortening of the aerated concrete components provided with such reinforcement not only does not impair their statics, but even leads to an improvement.
  • the crack formation that has so far frequently occurred on the plate heads, ie the front edges in the area of the support ends, is excluded with certainty and regardless of whether the component is installed with its original length or has been subsequently shortened by a transverse cut.
  • a particular advantage of the reinforcement arrangements according to the invention can be seen in the fact that because of the force-transmitting connection between the upper and lower or outer and inner reinforcement with the steel cross-sections remaining the same, significantly higher payloads are taken up or the steel cross-sections are reduced to a third of what was previously required in order to achieve the same load-bearing capacity can.
  • a particular advantage of using stainless steel is that the cut surfaces of the reinforcement elements that are exposed when shortening aerated concrete components do not have to be subsequently protected against rust, which was previously absolutely necessary and difficult to carry out.
  • connection arrangement rests at its upper and lower vertices on the respective longitudinal bar on its inwardly directed circumferential half and is non-positively connected there.
  • the reinforcement arrangement of the aerated concrete component 1 shown in FIG. 1, which can be used as a lintel, comprises a single reinforcement unit 3 designed in the manner of a truss, which consists of an upper longitudinal bar 5, a lower longitudinal bar 6 and a zigzag shape between them consists of two longitudinal rods 5, 6 back and forth connecting rod 8, which is non-positively connected to the relevant longitudinal rod 5 or 6 in the region of its upper and lower apex 9, 9 ', for example by welding.
  • the upper longitudinal bar 9 in conjunction with the surrounding aerated concrete mass serves to absorb the pressure load, while the lower longitudinal bar 6 can be subjected to tension.
  • the two longitudinal bars 5, 6 are anchored in the surrounding aerated concrete not by transverse bars lying horizontally in the installed position and firmly welded to them, the mutual distances between which are shorter in the longitudinal direction towards the respective ends, but by the zigzag -shaped connecting rod 8, which together with the two longitudinal rods 5, 6 forms a truss structure.
  • larger spans can be achieved with the same component thickness.
  • these components can be prefabricated from aerated concrete with very long lengths and cut to shorter lengths on the construction site as required, which in contrast to the state of the art Technology improves their statics.
  • the aerated concrete component 10 from FIG. 2 that can be used as a lintel has a greater width than the component 1 from FIG. 1, so that its reinforcement arrangement comprises two reinforcement units 3 arranged parallel to one another, each of which has the same structure as the reinforcement unit 3 Fig. 1.
  • the two reinforcement units 3 are connected to one another by upper and lower transverse bars 12 which run approximately perpendicular to the longitudinal bars 5, 6.
  • these cross bars 12 have no static significance. They only serve to fix the two reinforcement units 3 relative to each other in the manufacture of the relevant aerated concrete component 10, if the reinforcement arrangement is suspended in a casting mold and the filled aerated concrete mass increases due to the known driving process and thereby gradually completely encloses the reinforcement arrangement.
  • cross bars 12 can be made of much cheaper material than the actual reinforcement forming longitudinal and connecting rods.
  • 12 plastic fiber rods can be used as cross bars, the strength of which is only sufficient to absorb the loads that occur during the preparation and implementation of the casting process, which are significantly lower than the loads of the previously used cross bars used to anchor the longitudinal bars installed condition of the aerated concrete component must be recorded.
  • Fig. 3 shows a cellular concrete component 14, which can be adapted to use as a wall panel, ceiling panel or roof panel by varying its outer shape with the reinforcement arrangement remaining the same.
  • cross bars 12 are again provided, which serve the same purpose as was explained with reference to FIG. 2 and which can thus also be made of a material which is far less resilient than the material of the longitudinal and connecting bars.
  • FIGS. 5 and 6 show a top view, side view and end view of an aerated concrete component 14 'corresponding to the aerated concrete component 14 from FIG. 3, which is formed by the groove 15 provided in one side surface and the matching spring formed in the opposite side surface 16 for use as a wall plate is trained.
  • the side surfaces just mentioned could, however, also be designed with the reinforcement arrangement remaining the same, as is shown below, for example, for the aerated concrete component 18 in FIGS. 5 and 6, and thus be adapted for use as a roof or ceiling panel.
  • the reinforcement arrangement of the aerated concrete component shown in Figs. 5 and 6a to 6c consists of three mutually parallel truss-like reinforcement units 3 ', each of which comprises an upper longitudinal bar 5' and two lower longitudinal bars 6 ', 6', each of which with the help a connecting rod 8 ', 8' is connected to the upper longitudinal rod 5 '.
  • the two connecting rods 8 ', 8' of each reinforcement unit 3 ' like the connecting rods 8 in the preceding exemplary embodiments, run back and forth in a zigzag shape between the upper and the respectively associated lower longitudinal rod and are at their apexes 9, 9' with the respective one Longitudinal bar non-positively, for example connected by welding.
  • the two connecting rods 8 ', 8' of a reinforcement unit 3 ' are arranged offset from one another in the longitudinal direction so that in a plane parallel to the end face 20, which runs through the upper apex 9 of one of the two connecting rods 8, 8', a lower apex 9 'of the other connecting rod 8', 8 ', and vice versa.
  • FIG. 6a of the aerated concrete component 18 shown in FIGS. 5 and 6a to 6c clearly shows the opposite arrangement of the connecting rods 8 ', 8' of each reinforcement unit 3 ', this arrangement being shown in FIG. 6a expresses that, seen in the direction of the crossbars 12, each upper apex 9 of the one connecting rod 8 'is opposite a lower apex 9' of the other connecting rod 8 'and vice versa.
  • a groove 15 is formed in one end face and a tongue 16 in the opposite end face, the latter merging into a fold 21 extending over the entire length of the aerated concrete component 18.
  • FIGS. 7 and 8a to 8c show a cellular concrete component 24, the reinforcement arrangement of which again comprises three reinforcement units 3 ′′ formed parallel to one another in the form of trusses.
  • Each of these reinforcement units 3 ′′ consists of an upper longitudinal bar 5 ′′ and two lower longitudinal bars 6 ′′, 6 ′′, which are connected to the upper longitudinal bar 5 ′′ via two connecting bars 8 ′′, 8 ′ running back and forth in a zigzag shape. ' are connected.
  • the connecting rods 8 ′′, 8 ′′ are arranged in such a way that their upper vertices 9, on which they are firmly connected to the upper longitudinal rod 5 ′′, coincide and their lower vertices 9 ′, on which they connect to the lower longitudinal rods 6 '', 6 '' are firmly connected, lie in the same plane parallel to the end face 25.
  • this is not absolutely necessary. Rather, the individual reinforcement units 3, 3 ', 3''can be arranged offset with respect to one another in the longitudinal direction.
  • FIGS. 9 and 10a to 10c While all the embodiments shown so far had a longitudinal direction in which they can bridge a large span due to their reinforcement arrangement, and a perpendicular direction perpendicular to this, in which only a comparatively small width is possible, is the embodiment shown in FIGS. 9 and 10a to 10c suitable to bridge large spans as a space framework in two directions perpendicular to each other.
  • the reinforcement arrangement of the aerated concrete component 28 shown there has in each of these two directions a multiplicity of reinforcement units 3 designed in the manner of trusses, which are constructed in the same manner as was described with reference to FIGS. 1 to 4a.
  • each of these reinforcement units five of which are shown in FIG. 9 in the previous "longitudinal direction” and three in the previous “transverse direction", each have an upper longitudinal bar 5 and a lower longitudinal bar 6, which are represented by a zigzag-shaped connecting rod 8 running back and forth between them are connected to each other in the manner of a truss.
  • the expression “longitudinal bar” is to be understood in such a way that the bar in question extends in the longitudinal direction of the reinforcement unit 3 in question.
  • the reinforcement arrangement comprises two groups of reinforcement units 3, which are each perpendicular to and penetrate one another.
  • the connecting rods 12 can be omitted here because the upper and lower longitudinal rods 5 and 6 can be firmly connected to one another at their crossover points and thus the reinforcement arrangement shown here is stable even before it is embedded in the aerated concrete mass in the sense that its reinforcement units 3 cannot move against each other.
  • 11a to 11c show a porous concrete component 30 suitable as an inner wall plate element, the reinforcement arrangement of which comprises only a single reinforcement unit 3 '''designed in the manner of a truss girder, in which, as with the reinforcement units 3, an upper longitudinal bar 5 with a lower longitudinal rod 6 is connected by a zigzag-shaped connecting rod 8 running back and forth between them, which is non-positively connected at its upper and lower apexes 9 and 9 ', in particular by welding, to the associated longitudinal rod 5 and 6, respectively.
  • a difference of this reinforcement unit 3 '' 'to all the reinforcement units shown above is that the connecting rod 8 is not kinked at its apex by about 90 ° but at an acute angle.
  • a middle longitudinal rod 7 runs approximately in the middle between the upper and lower longitudinal rods 5 and 6.
  • the upper and lower longitudinal bars are each connected to one another by a continuous connecting bar 8 or 8 'or 8' 'which is bent at the upper and lower apices 9 and 9'.
  • a continuous connecting bar 8 or 8 'or 8' ' which is bent at the upper and lower apices 9 and 9'.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Golf Clubs (AREA)
  • Adornments (AREA)
EP97104719A 1996-03-21 1997-03-19 Bétoncellulaire avec système d'armatures Expired - Lifetime EP0796961B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19611200 1996-03-21
DE19611200A DE19611200A1 (de) 1996-03-21 1996-03-21 Bewehrungsanordnung für Porenbeton-Bauteile

Publications (2)

Publication Number Publication Date
EP0796961A1 true EP0796961A1 (fr) 1997-09-24
EP0796961B1 EP0796961B1 (fr) 2002-06-12

Family

ID=7789008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104719A Expired - Lifetime EP0796961B1 (fr) 1996-03-21 1997-03-19 Bétoncellulaire avec système d'armatures

Country Status (4)

Country Link
EP (1) EP0796961B1 (fr)
AT (1) ATE219196T1 (fr)
DE (2) DE19611200A1 (fr)
DK (1) DK0796961T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016200267A1 (fr) * 2015-05-27 2016-12-15 Polybo As Élément de dalle et son procédé de production
NO20161845A1 (en) * 2016-06-14 2017-12-15 Polybo As A building structure connecting means and a method of using same
WO2020049410A1 (fr) * 2018-09-06 2020-03-12 Quintero Y Ortega Jose Felipe Maille structurale pour étages et planchers renforcée à l'aide de tiges en zig-zag

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1221815A (fr) * 1959-01-14 1960-06-03 élément de construction préfabriqué à multiples usages
US4104842A (en) * 1977-02-25 1978-08-08 Rockstead Raymond H Building form and reinforcing matrix
GB2234277A (en) * 1986-10-29 1991-01-30 Shimuzu Construction Co Ltd Sound insulating walls
WO1995017566A1 (fr) * 1993-12-23 1995-06-29 Claudio Bernardinis Structure metallique speciale soudee a l'arc

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7313874U (de) * 1973-07-26 Hellmich F Verbund Gitterträger zum Aussteifen von Baustahlgewebematten
DD58586A (fr) *
US1911018A (en) * 1931-11-11 1933-05-23 William L Goeltz Structural unit
DE1854574U (de) * 1962-04-14 1962-07-05 Hans Schreiner Bewehrungsgerippe fuer stahlbetontraeger oder stahlbetonrippendecken.
DE1609814A1 (de) * 1965-04-08 1970-05-21 Badische Stahlwerke Bewehrungselement fuer Stahlbetonbauteile
BE757936A (fr) * 1969-10-23 1971-04-01 Bayer Ag Procede de preparation de polymeres anioniques modifies en emulsion
AT361681B (de) * 1979-04-09 1981-03-25 Katzenberger Helmut Gittertraeger fuer stahlbetondecken od. dgl.
IT1145767B (it) * 1981-05-18 1986-11-12 Franco Penati Traclicci elettrosaldati a staffe continue laterali in ferro tondo per c.a. a sezione trapezoidale o triangolare per strutture in cemento arnato

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1221815A (fr) * 1959-01-14 1960-06-03 élément de construction préfabriqué à multiples usages
US4104842A (en) * 1977-02-25 1978-08-08 Rockstead Raymond H Building form and reinforcing matrix
GB2234277A (en) * 1986-10-29 1991-01-30 Shimuzu Construction Co Ltd Sound insulating walls
WO1995017566A1 (fr) * 1993-12-23 1995-06-29 Claudio Bernardinis Structure metallique speciale soudee a l'arc

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016200267A1 (fr) * 2015-05-27 2016-12-15 Polybo As Élément de dalle et son procédé de production
NO20161845A1 (en) * 2016-06-14 2017-12-15 Polybo As A building structure connecting means and a method of using same
NO342700B1 (en) * 2016-06-14 2018-07-09 Polybo As A connection means of a building structure and a method of using same
WO2020049410A1 (fr) * 2018-09-06 2020-03-12 Quintero Y Ortega Jose Felipe Maille structurale pour étages et planchers renforcée à l'aide de tiges en zig-zag

Also Published As

Publication number Publication date
DK0796961T3 (da) 2002-10-07
DE19611200A1 (de) 1997-10-30
ATE219196T1 (de) 2002-06-15
DE59707459D1 (de) 2002-07-18
EP0796961B1 (fr) 2002-06-12

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