EP0688613B1 - Bewehrung für gestützte Betondecken im Bereiche von deren Stützen sowie Verfahren zu deren Herstellung - Google Patents
Bewehrung für gestützte Betondecken im Bereiche von deren Stützen sowie Verfahren zu deren Herstellung Download PDFInfo
- Publication number
- EP0688613B1 EP0688613B1 EP95108958A EP95108958A EP0688613B1 EP 0688613 B1 EP0688613 B1 EP 0688613B1 EP 95108958 A EP95108958 A EP 95108958A EP 95108958 A EP95108958 A EP 95108958A EP 0688613 B1 EP0688613 B1 EP 0688613B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- reinforcement
- longitudinal
- elements
- reinforcement according
- 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.)
- Expired - Lifetime
Links
- 230000002787 reinforcement Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 17
- 238000005452 bending Methods 0.000 claims abstract description 73
- 230000000737 periodic effect Effects 0.000 claims abstract 3
- 238000003491 array Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
- B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
- B21D11/125—Bending wire nets
-
- 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
- E04C5/0627—Three-dimensional reinforcements composed of a prefabricated reinforcing mat combined with reinforcing elements protruding out of the plane of the mat
Definitions
- the present invention relates to reinforcement for supported Concrete ceilings to absorb shear forces in the area of their supports, which reinforcement longitudinal and has connecting elements according to the preamble of claim 1, and a method for Manufacture of such reinforcement for concrete slabs, according to the generic term of claim 10.
- crack dowel strips belong to the state of the art, the crack U strips and the crack stars, which in the Best in the professional world and through publications in magazines have become known.
- Another version is known under the name Anco-Tech.
- The also has a certain meaning Execution achieved after Aschwanden. This will be U-shaped Rods, the free ends of which are bent at the end in a hairpin shape are placed one after the other and next to each other in rows and with corresponding straight connecting rods connected.
- the push rod is anchored when reinforcing ash walls below in itself, while the anchoring above by standards End hook is effected.
- This solution although anchoring technology okay, is extremely expensive and by making the many individual brackets and assembling them extremely labor intensive.
- the Rissstern may be sufficient for smaller thrust forces but especially unsatisfactory in terms of anchorage.
- DE-A-2 205 852 describes a method for producing a Reinforcement for concrete ceilings, concrete walls and the like.
- the reinforcement is defined as a lattice girder and serves as Connection between a prefabricated concrete slab and a on-site concrete slab or Concrete walls. These elements cannot take over thrust.
- the present invention has as its object such Manufacture reinforcement, both in terms of their Production as well as material compared to the state of the Technically cheaper, extremely practical anchorage technology prefabricated reinforcements for thrust bodies aimed for become.
- Claim 11 relates to a supported concrete ceiling with a reinforcement according to the invention.
- the bending machine 1 shown in Fig. 1 is located in the rest / starting position.
- a special net 2 is in the machine introduced, with two bending processes corresponding two waves 37 of the network 2, on the right in FIG. 1, are indicated.
- the bending machine 1 has three bending units 3, 4 and 5. Each of these three units has a bending beam 7 or 8 and 9 and an associated counter-holder 11, 12, 13.
- the curved parts of the special network 2 form, as in FIG. 1 indicated bending waves 37, their zenith with 33 and their nadir is designated 35. There are also connecting rods 34 indicated.
- the bending beams 7, 8 and 9 must be in the arrangement shown be strong, i.e. have a large moment of resistance of their own. Because they must be the large ones that occur during the bending process Absorb forces without this relatively large span to bend itself noticeably.
- the counterholders 11, 12 and 13 can be dimensioned somewhat lighter become.
- the counter-holder 12 is pressed using the piston press 15 and 16 pressed against the bending beam 8.
- the bending beam 8 by means of the piston presses 21 and 22 pressed upwards in the vertical guides 26, while maintaining the counter pressure.
- FIG. 4 5 shows the position in which the bending units with their bending beams 7, 8 and 9 with clamping of the network 2 with the counterholders 11, 12 and 13 in the bending / starting position are.
- the bending beams 7 and 9 and the counter bracket 12 are by means of their piston presses in the 5, for example the bending beam 9 by means of the piston presses 18 and 19. So that is to be bent Special net 2 fixed during the bending process and therefore get an accurate bending shape.
- the special network 2 is introduced according to FIG. 4. Then be 5 the counter-holder 12 and the bending beams 7 and 9 brought into their contact position. This will make the network 2 fixed.
- the middle bending unit is then 8, 12 pressed up while holding the two outer bending units 7, 11 and 9, 13 against each other to be pressed towards the middle. Because of the springback of the curved Bars 32 are illustrated in FIG. 6, somewhat above to move the perpendicular towards each other, so that after loosening the aggregates the desired angles, usually 90 °, are strictly adhered to. It is possible that To measure bending angles electronically, and if necessary, by Correction in the sense of FIG. 6 to correct.
- the unit 5 in brought his starting position. Another bending process can accordingly, as shown in FIG. 4.
- the feed of the network 2 can be accomplished by its own feed device.
- all bending units released and directly in the starting position in the sense of FIG. 4, whereupon the Network 2 is advanced and another bend is made can.
- Centering bolts can be attached to the bending beams or the counter supports (Not shown) are attached, which the network 2 with Position precisely using the cross bars or connecting bars 34.
- the bending beams are provided with standard-compliant bending radii, to protect the mesh from notching effects in the bending areas preserve.
- the Execution according to FIGS. 11 and 12 also simple bending beams 50, 51 and 52 can be used. These bending beams will be then provided with bending fingers 54. But that has to be the case Net 2 before each bending process with an additional device lowered and inserted laterally into the bending fingers 54 (arrow direction 56). After the bending process, this has to be done Correspondingly, net 2 again laterally from the bending fingers 54 pushed out and raised so that it can be advanced can, as indicated in FIGS. 11 and 12.
- FIG. 13 shows the basic structure of a special network, which depending on the desired design, such as 14 to 20 show on an ordinary one Mesh welding machine can be manufactured.
- the network points Longitudinal or push rods 61, which in the present case are arranged parallel to each other while the transverse or Connecting rods 62 according to the desired shape the same or different distances from each other are.
- This net is used in a bent state to Shear forces in supported concrete ceilings in the area of the supports record what is due to the appropriate stability of the mat or the finished, so-called drawer is made possible.
- the vertical ones are anchored in these forms Parts 63 of the push rods 61 both in the pressure zone and in the tensile zone of the concrete ceiling continuously in itself.
- the material savings are at least the same Known reinforcement quality approximately 10 to 20%.
- the production this reinforcement is simple and cheap.
- the distance between the vertical parts 63 as can be seen in the figures, about 10 to 15 cm, while the height of approx. 15 depending on the ceiling thickness up to 50cm can vary in steps from 1 to 2cm.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
- Fig. 1
- einen Längsschnitt durch eine Biegemaschine zum Herstellen von Durchstanzbewehrungen aus Netzen, mit eingelegtem Netz und angedeuteten, bereits gebogenen zwei Wellen, in Ausgangslage,
- Fig. 2
- einen Schnitt gemäss Schnittlinie II - II der Fig. 1,
- Fig. 3
- einen Schnitt gemäss Schnittlinie III - III der Fig. 1,
- Fig. 4 bis 10
- den Biegevorgang, dargestellt in einzelnen Teilvorgängen, in schematischer Darstellung,
- Fig. 11
- einen Längsschnitt durch eine weitere Ausführungsform einer Biegemaschine, analog Fig. 1,
- Fig. 12
- einen Schnitt gemäss Schnittlinie XII - XII der Fig. 11,
- Fig. 13
- ein aus Längs- und Verbindungsstäben bestehendes Spezialnetz, in zu einer Bewehrung gebogenem Zustand, in Aufsicht,
- Fig. 14
- die Bewehrung gemäss Fig. 13 in Vorderansicht,
- Fig. 15
- das gebogene Netz gemäss Fig. 14 in perspektivischer Darstellung, im Ausschnitt,
- Fig. 16 bis 20
- aus einem Spezialnetz durch Biegung hergestellte Bewehrungen in Vorderansicht mit unterschiedlichen Biegeformen und unterschiedlicher Lage der die gebogenen Längsstäbe verbindenden Quer- oder Verbindungsstäbe.
Claims (11)
- Bewehrung zur Aufnahme von Schubkräften in gestützten Betondecken im Bereich über den Stützen, welche Bewehrung Längs-und Verbindungselemente aufweist, wobei ausschliesslich Längselemente (61) zu periodischen und/oder aperiodischen Schwingungsformen gebogen sind dadurch gekennzeichnet dass jede Schwingungsform zwischen der Basis und dem Scheitel in bezug auf die Ebene der Bewehrung mindestens einen senkrechten Teilabschnitt (63), aufweist.
- Bewehrung nach Anspruch 1, dadurch gekennzeichnet, dass die Längs- (61) und/oder die Verbindungselemente (62) unter sich parallel zueinander angeordnet sind.
- Bewehrung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Basis und/oder der Scheitel der Schwingungsform mindestens annähernd gebogen und/oder gradlinig, insbesondere kreis- und/oder rechteckförmig ausgebildet sind.
- Bewehrung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Amplituden der Schwingungen gleich sind.
- Bewehrung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Amplituden der Schwingungen oder deren gegenseitige Abstände ungleich sind.
- Verwendung einer Bewehrung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Schwingungsform trapezförmig ist.
- Bewehrung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Längselement über eine Schwingung mit mindestens einem, insbesondere bis mit vier Verbindungselementen ausgerüstet ist.
- Bewehrung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Verbindungselemente ausschliesslich im Bereich des Zenits und/oder des Nadirs angeordnet sind.
- Bewehrung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass bei Längselementen (61) ausschliesslich jeder zweite vertikale Teil (63) kein Verbindungselement (62) aufweist.
- Verfahren zum Herstellen einer Bewehrung nach einem der Ansprüche 1 bis 9 für die Verwendung in gestützten Betondecken im Bereich von deren Stützen zur Aufnahme von Schubkräften, wobei man ein aus Längs- und Verbindungsstäben (61, 62) bestehendes Netz um eine Biegeachse parallel zu einem der Verbindungsstäbe (62) zu einem Gebilde biegt, in welchem die Längsstäbe (61), periodische oder aperiodische Schwingungsformen bilden, dadurch gekennzeichnet, dass zwischen der Basis und dem Scheitel jeder Schwingungsform in bezug auf die Ebene der Bewehrung mindestens ein senkrechter Teilabschnitt auf gebogen wird.
- Gestützte Betondecke mit einer Bewehrung, nach einem der Ansprüche 1 bis 9, im Bereich über den Stützen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2026/94 | 1994-06-24 | ||
CH202694 | 1994-06-24 | ||
CH02026/94A CH688519A5 (de) | 1994-06-24 | 1994-06-24 | Durchstanz-Bewehrung fuer gestuetzte Betondecken im Bereiche von deren Stuetzen sowie Verfahren zu deren Herstellung und Biegemaschine. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0688613A1 EP0688613A1 (de) | 1995-12-27 |
EP0688613B1 true EP0688613B1 (de) | 2001-07-25 |
Family
ID=4224192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95108958A Expired - Lifetime EP0688613B1 (de) | 1994-06-24 | 1995-06-10 | Bewehrung für gestützte Betondecken im Bereiche von deren Stützen sowie Verfahren zu deren Herstellung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0688613B1 (de) |
AT (1) | ATE203436T1 (de) |
CH (1) | CH688519A5 (de) |
DE (1) | DE59509440D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202115B4 (de) * | 2001-01-23 | 2006-04-27 | Fischer Reinach Ag | Verfahren zur Herstellung einer Schubarmierung in gestützten Betondecken |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ285054B6 (cs) * | 1997-11-21 | 1999-05-12 | Jaromil Čeřovský | Trojrozměrný betonářský výztužný rošt a způsob jeho výroby |
DE29808491U1 (de) * | 1998-05-11 | 1999-09-23 | Dausend, Hans-Werner, 42279 Wuppertal | Bewehrungselement für Schubbewehrungen |
FR2800648A1 (fr) * | 1999-11-05 | 2001-05-11 | Patrick Jean Rene Berthe | Machine permettant de plier des lattis metalliques sans soudure |
AU2003903359A0 (en) * | 2003-07-01 | 2003-07-17 | Onesteel Reinforcing Pty Ltd | A reinforcing component |
EP1932978B1 (de) | 2006-12-14 | 2012-06-13 | F.J. Aschwanden AG | Bewehrungselement für die Aufnahme von Kräften in betonierten Platten im Bereich von Stützelementen |
CH701682A1 (de) | 2009-08-21 | 2011-02-28 | Sybaco Ag | Durchstanzbewehrung. |
IT1398543B1 (it) * | 2010-03-05 | 2013-03-01 | Pigazzi Reti S R L | Elementi di armatura a punzonamento-taglio per piastre in cemento armato. |
AT513742B1 (de) * | 2013-01-16 | 2014-07-15 | Franz Mag Filzmoser | Vorrichtung zum Biegen von Bügeldrähten für Gitterträger |
FR3114330B1 (fr) * | 2020-09-21 | 2022-08-26 | Ecole Nat Des Ponts Et Chaussees | Cage d’armature de renforcement d’une poutre en béton |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH361261A (fr) * | 1958-12-01 | 1962-04-15 | Achard Societe Anonyme | Machine à plisser des tôles |
DE1452737B2 (de) * | 1963-08-08 | 1971-08-15 | Licentia Patent Verwaltungs GmbH, 6000 Frankfurt | Vorrichtung zur kontinuierlichen herstellung von wellen waenden fuer die kessel von transfoermatoren drosselspulen und dergleichen elektrische induktionsgeraete |
NL6905376A (de) * | 1969-02-10 | 1970-10-12 | ||
CH536423A (de) * | 1971-02-18 | 1973-04-30 | Imex Ag | Verfahren und Vorrichtung zur Herstellung einer Bewehrung für Betondecken, Betonwände und dergleichen |
IT980546B (it) * | 1972-03-14 | 1974-10-10 | Dijk Edsger Wybe Van | Procedimento e macchina per la for mazione di ondulazioni a sottosqua dro in lamiere e bande metalliche |
DE2252550A1 (de) * | 1972-10-26 | 1974-05-02 | Hans Keller | Verfahren zur herstellung von ein- und mehrlagigen bewehrungskoerben in betonbalken |
AT343438B (de) * | 1975-04-09 | 1978-05-26 | Bucher Franz | Verfahren zum herstellen eines gitter- bzw. bugeltragers |
DE2913498C2 (de) * | 1979-04-04 | 1984-07-26 | Franz Dipl.-Ing. 4431 Heek Deitmers | Vorrichtung zum Trennen und Biegen von Betonstahlmatten aus sich kreuzenden Längs- und Querdrähten |
DE4209697A1 (de) * | 1991-06-25 | 1993-01-07 | Rudi Lux | Mehrfach gefuehrte biegemaschine fuer baustahlmatten |
-
1994
- 1994-06-24 CH CH02026/94A patent/CH688519A5/de not_active IP Right Cessation
-
1995
- 1995-06-10 DE DE59509440T patent/DE59509440D1/de not_active Expired - Lifetime
- 1995-06-10 EP EP95108958A patent/EP0688613B1/de not_active Expired - Lifetime
- 1995-06-10 AT AT95108958T patent/ATE203436T1/de active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202115B4 (de) * | 2001-01-23 | 2006-04-27 | Fischer Reinach Ag | Verfahren zur Herstellung einer Schubarmierung in gestützten Betondecken |
Also Published As
Publication number | Publication date |
---|---|
EP0688613A1 (de) | 1995-12-27 |
ATE203436T1 (de) | 2001-08-15 |
DE59509440D1 (de) | 2001-08-30 |
CH688519A5 (de) | 1997-10-31 |
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