EP0745736A1 - Flat steel anchor for brickwork and manufacturing method thereof - Google Patents
Flat steel anchor for brickwork and manufacturing method thereof Download PDFInfo
- Publication number
- EP0745736A1 EP0745736A1 EP96107182A EP96107182A EP0745736A1 EP 0745736 A1 EP0745736 A1 EP 0745736A1 EP 96107182 A EP96107182 A EP 96107182A EP 96107182 A EP96107182 A EP 96107182A EP 0745736 A1 EP0745736 A1 EP 0745736A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat steel
- steel anchor
- anchor
- anchors
- depressions
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 53
- 239000010959 steel Substances 0.000 title claims description 53
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 239000011230 binding agent Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000011455 calcium-silicate brick Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4178—Masonry wall ties
Definitions
- the invention relates to a flat steel anchor for masonry usually made of stainless steel, which is profiled on preferably both side edges - when looking at the anchor in the plan - that is, it has no straight side edges.
- the invention further relates to a method for producing these anchors.
- Such anchors are used for masonry made of sand-lime brick, gas concrete blocks, gas concrete blocks or similar stones, placed flat between these stones and held in thin-bed mortar, light mortar or similar binders or adhesives. They are mainly subjected to tension and must therefore be well fixed so that they can fulfill the anchor effect. A particular area of application for these anchors are butt joints.
- the lateral edges are profiled in known flat steel anchors or with U-shaped incisions arranged at a distance from one another Mistake; the binder penetrates these incisions and creates a positive connection that increases the pull-out strength.
- these incisions have the disadvantage that they can only be produced by subsequent treatment of the originally straight side edges of the strip-shaped flat steel anchor, namely by stamping. Waste of materials cannot be avoided.
- the invention is based on the object of improving the flat steel anchors mentioned at the outset in such a way that edge punchings are dispensed with, but an edge profile can nevertheless be achieved which ensures good resistance to pulling out. Material waste should therefore be excluded.
- a special edge profile is proposed for flat steel anchors of the type mentioned at the outset, in which an imaginary straight line running longitudinally to the flat steel anchor extends laterally outward projections and also inward recesses, in such a way that the projections and the recesses have identical or practically congruent floor plans.
- Such profiling of the edges of the flat steel anchor should preferably extend over the entire length of the anchor, although an arrangement at only a few points is also possible.
- the projections and recesses caused by this profiling ensure the aforementioned positive locking on the masonry and thus the desired high pull-out strength of the anchor.
- a particular advantage of an anchor designed in this way is that, compared to the known flat steel anchors with U-shaped incisions arranged at a distance from one another, it is now possible to manufacture them in a much simpler manner.
- the individual bottle steel anchors are separated from a material web which can optionally be pulled off a roll by means of a transverse wavy, zigzag-shaped or similar cut, this cut being able to be carried out by shearing, punching or the like.
- the flat steel anchors obtained in this way are given their desired edge profile through such production, so that the required pull-out strength can be achieved.
- the invention does not exclude that the flat steel anchor can also be provided with small holes or openings and also with depressions. The work steps required for this can be carried out together with the manipulations with which the flat steel anchor is separated from the material web.
- the material web mentioned, from which the flat steel anchors are separated can have a width which corresponds to the length of a flat steel anchor, but it is also possible to choose widths which are twice, three times or the like, i.e. several times an anchor length.
- the masonry consisting, for example, of sand-lime bricks 1 with the longitudinal wall 2 and the transverse wall 3 to be secured has - in the illustration exaggeratedly reproduced joints 4 in which the binder or the mortar is located.
- joints 4 in which the binder or the mortar is located.
- a flat steel anchor 5 In a horizontal joint 4 about half in the longitudinal wall 2 and the other half in the transverse wall 3 there is a flat steel anchor 5, which is designed as a narrow strip with a wall thickness of about 0.5 mm and is made of stainless steel or another stainless steel.
- the parallel longitudinal edges 6 are designed or profiled in a special way due to the invention to improve the fixation of the flat steel anchor in the joints 4.
- the improved fixation also serve in a row arranged flat depressions 7, which have an approximately triangular plan.
- the depressions 7 located in each half are arranged such that their tips 8 point in the same direction, while the tips 8 of all depressions 7 point to the center of the anchor at 10.
- This shape has the advantage of an improved mounting of each half of the flat steel anchors 5.
- a small opening 9 can also be provided for air discharge or for the penetration of the binder.
- the longitudinal edges 6 have a slightly zigzag shape, they extend over the entire anchor length and are also located on both sides of the flat steel anchor.
- the edge profiling is determined by an imaginary straight line 11 running longitudinally to the anchor.
- the distance between the straight lines 11 located on both sides corresponds to the nominal width or the active width B of the flat steel anchor.
- the body of the flat steel anchor 5 runs in a zigzag shape overall, since the adjacent edge parts 12, 13 located on opposite sides of the anchor run parallel to one another. Since the straight line 11 bisects the edge parts 12, 13, there are projections 14 extending outwards from the straight line 11 (shown by hatching) in FIG Triangular shape and also shown hatched recesses 15 in a triangular shape.
- triangles or projections 14 and recesses 15 are congruent in shape and size, but the tips point in opposite directions - transverse to the longitudinal direction of the armature.
- the mass d therefore coincide; the length L is twice the size of the triangles 14, 15.
- the size d can be about 2-4 mm; the dimension L can be chosen with about 5 - 10 cm.
- the side edges 6 run approximately along a sine line; The mass s is then the amplitude, while the mass L determines the vibration range.
- FIG. 9 shows a smaller zigzag division compared to FIG. 5. But here, too, the two side edges 6 are designed such that the base 16 of a recess 15 of the most protruding point 17 of the projections 14 is exactly opposite.
- a particular advantage of the invention is that the manufacture of the individual flat steel anchors can be done by separating them from a material web 18, which can also form a winding 19, in order to be able to pull the material web 18 from it.
- the individual flat steel anchors 5 are cut off by cutting, punching or the like. With the separation, the flat steel anchor is given its final, waste-free final shape, ie the special profiling of the side edges 6. This is possible because the sizes of the divisions and the projections or recesses (areas at 14 and 15) are all coordinated.
- the depressions 7 and the holes 9 can be produced together with the separation of the individual flat steel anchors 5 from the material web 18.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Die Erfindung betrifft einen gewöhnlich aus nichtrostendem Stahl bestehenden Flachstahlanker für Mauerwerk, der an vorzugsweise beiden seitlichen Rändern - bei Betrachtung des Ankers im Grundriss - profiliert ist, also keine gerade verlaufenden Seitenkanten aufweist. Die Erfindung bezieht sich weiterhin auf ein Verfahren zur Herstellung dieser Anker.The invention relates to a flat steel anchor for masonry usually made of stainless steel, which is profiled on preferably both side edges - when looking at the anchor in the plan - that is, it has no straight side edges. The invention further relates to a method for producing these anchors.
Derartige Anker werden für Mauerwerk aus Kalksandstein, Gasbeton-Blocksteine, Gasbeton-Plansteine oder ähnliche Steine benutzt, zwischen diesen Steinen flach liegend angeordnet und in Dünnbettmörtel, Leichtmörtel oder ähnlichen Binde- oder Klebemitteln gehalten. Sie werden vorwiegend auf Zug beansprucht und müssen daher gut fixiert sein, damit sie die Ankerwirkung erfüllen können. Ein besonderes Einsatzgebiet dieser Anker sind Stumpfstösse.Such anchors are used for masonry made of sand-lime brick, gas concrete blocks, gas concrete blocks or similar stones, placed flat between these stones and held in thin-bed mortar, light mortar or similar binders or adhesives. They are mainly subjected to tension and must therefore be well fixed so that they can fulfill the anchor effect. A particular area of application for these anchors are butt joints.
Um eine hohe Ausreissfestigkeit zu erzielen, sind bei bekannten Flachstahlankern die seitlichen Kanten profiliert bzw. mit im Abstand voneinander angeordneten U-förmigen Einschnitten versehen; das Bindemittel dringt in diese Einschnitte ein und bewirkt einen die Ausreissfestigkeit steigernden Formschluss. Diese Einschnitte haben jedoch den Nachteil, dass sie nur durch nachträgliches Behandeln der ursprünglich gerade verlaufenden Seitenkanten des streifenförmigen Flachstahlankers, und zwar durch Stanzen erzeugt werden können. Dabei sind Werkstoffabfälle nicht zu vermeiden.In order to achieve a high pull-out strength, the lateral edges are profiled in known flat steel anchors or with U-shaped incisions arranged at a distance from one another Mistake; the binder penetrates these incisions and creates a positive connection that increases the pull-out strength. However, these incisions have the disadvantage that they can only be produced by subsequent treatment of the originally straight side edges of the strip-shaped flat steel anchor, namely by stamping. Waste of materials cannot be avoided.
Der Erfindung liegt die Aufgabe zugrunde, die eingangs erwähnten Flachstahlanker so zu verbessern, dass auf Randstanzungen verzichtet, aber dennoch eine Randprofilierung erreicht werden kann, die eine gute Ausreissfestigkeit gewährleistet. Werkstoffabfälle sollen also ausgeschlossen werden.The invention is based on the object of improving the flat steel anchors mentioned at the outset in such a way that edge punchings are dispensed with, but an edge profile can nevertheless be achieved which ensures good resistance to pulling out. Material waste should therefore be excluded.
Zur Lösung dieser Aufgabe wird erfindungsgemäss bei Flachstahlankern der eingangs erwähnten Art eine besondere Randprofilierung vorgeschlagen, bei der von einer gedachten längs zum Flachstahlanker verlaufenden Geraden seitlich nach aussen gerichtete Vorsprünge und zudem nach innen gerichtete Ausnehmungen ausgehen, und zwar so, dass die Vorsprünge und die Ausnehmungen flächengleiche bzw. praktisch deckungsgleiche Grundrisse aufweisen.To achieve this object, according to the invention, a special edge profile is proposed for flat steel anchors of the type mentioned at the outset, in which an imaginary straight line running longitudinally to the flat steel anchor extends laterally outward projections and also inward recesses, in such a way that the projections and the recesses have identical or practically congruent floor plans.
Eine solche Profilierung der Ränder des Flachstahlankers soll sich vorzugsweise über die gesamte Länge des Ankers erstrecken, wenngleich auch eine Anordnung an nur einigen Stellen möglich ist. Die durch diese Profilierung bedingten Vorsprünge und Ausnehmungen gewährleisten den vorgenannten Formschluss am Mauerwerk und damit die gewünschte hohe Ausreissfestigkeit des Ankers.Such profiling of the edges of the flat steel anchor should preferably extend over the entire length of the anchor, although an arrangement at only a few points is also possible. The projections and recesses caused by this profiling ensure the aforementioned positive locking on the masonry and thus the desired high pull-out strength of the anchor.
Ein besonderer Vorteil eines so ausgebildeten, erfindungsgemässen Ankers besteht jedoch darin, dass gegenüber den vorbekannten Flachstahlankern mit im Abstand voneinander angeordneten u-förmigen Einscnitten nunmehr eine wesentlich einfachere Herstellung möglich ist. Aufgrund der Erfindung werden die einzelnen Flaschstahlanker von einer gegebenenfalls von einer Rolle abziehbaren Werkstoffbahn durch einen querverlaufenden wellenförmigen, zickzackförmigen oder ähnlichen Schnitt abgetrennt, wobei dieser Schnitt durch Scheren, Stanzen od. dgl. vollzogen werden kann. Die so gewonnenen Flachstahlanker erhalten durch eine solche Herstellung ihre gewünschte Randprofilierung, damit die erforderliche Ausreissfestigkeit erreicht werden kann.A particular advantage of an anchor designed in this way, however, is that, compared to the known flat steel anchors with U-shaped incisions arranged at a distance from one another, it is now possible to manufacture them in a much simpler manner. On the basis of the invention, the individual bottle steel anchors are separated from a material web which can optionally be pulled off a roll by means of a transverse wavy, zigzag-shaped or similar cut, this cut being able to be carried out by shearing, punching or the like. The flat steel anchors obtained in this way are given their desired edge profile through such production, so that the required pull-out strength can be achieved.
Die Erfindung schliesst nicht aus, dass der Flachstahlanker auch mit kleinen Löchern bzw. Durchbrechungen und auch mit Einsenkungen versehen werden kann. Die dazu erforderlichen Arbeitsgänge können zusammen mit den Manipulationen durchgeführt werden, mit denen der Flachstahlanker von der Werkstoffbahn abgetrennt wird.The invention does not exclude that the flat steel anchor can also be provided with small holes or openings and also with depressions. The work steps required for this can be carried out together with the manipulations with which the flat steel anchor is separated from the material web.
Die erwähnte Werkstoffbahn, von der die Flachstahlanker abgetrennt werden, kann eine Breite haben, die der Länge eines Flachstahlankers entspricht, jedoch ist es auch möglich Breiten zu wählen, die das Zweifache, Dreifache od. dgl., also das Mehrfache einer Ankerlänge entspricht.The material web mentioned, from which the flat steel anchors are separated, can have a width which corresponds to the length of a flat steel anchor, but it is also possible to choose widths which are twice, three times or the like, i.e. several times an anchor length.
Weitere Einzelheiten der Erfindung werden anhand der Zeichnung erläutert, in der Ausführungsbeispiele der Erfindung dargestellt sind. Es zeigen :
- Fig. 1 eine Stossverbindung eines Mauerwerks in der Ansicht,
- Fig. 2 die Verbindung gemäss Fig. 1 im Grundriss,
- Fig. 3 einen Schnitt nach der Linie III - III von Fig. 2,
- Fig. 4 einen Flachstahlanker für die Verbindung nach den Fig. 1 - 3 im Grundriss,
- Fig. 5 einen geringfügig abgewandelten Flachstahlanker im Teilgrundriss,
- Fig. 6 einen Schnitt nach der Linie VI - VI von Fig. 4,
- Fig. 7 eine Werkstoffbahn zur Herstellung eines Flachstahlankers in schaubildlicher Darstellung,
- Fig. 8 und 9 je Teilgrundrisse abgewandelter Randprofilierungen von Flachstahlankern.
- 1 is a butt joint of a masonry in the view
- 2 shows the connection according to FIG. 1 in plan view,
- 3 shows a section along the line III - III of FIG. 2,
- 4 shows a flat steel anchor for the connection according to FIGS. 1-3 in plan view,
- 5 shows a slightly modified flat steel anchor in the partial floor plan,
- 6 shows a section along the line VI-VI of FIG. 4,
- 7 shows a material web for producing a flat steel anchor in a diagrammatic representation,
- 8 and 9 per partial floor plans of modified edge profiles of flat steel anchors.
Das z.B. aus Kalksandsteinen 1 bestehende Mauerwerk mit der Längswand 2 und der zu sichernden Querwand 3 weist - in der Darstellung übertrieben wiedergegebene Fugen 4 auf, in denen sich das Bindemittel bzw. der Mörtel befindet. In einer waagerechten Fuge 4 etwa zur Hälfte in der Längswand 2 und zur anderen Hälfte in der Querwand 3 befindet sich ein Flachstahlanker 5, der als schmaler Streifen mit einer Wandstärke von etwa 0.5 mm ausgebildet und aus Edelstahl oder einem anderen, nichtrostenden Stahl gefertigt ist.The masonry consisting, for example, of sand-
Die parallel zueinander verlaufenden Längskanten 6 sind aufgrund der Erfindung in besonderer Weise gestaltet bzw. profiliert, um die Fixierung des Flachstahlankers in den Fugen 4 zu verbessern. Der verbesserten Fixierung dienen auch in einer Reihe angeordnete flache Einsenkungen 7, die einen etwa dreieckigen Grundriss haben. Dabei sind die in jeder Hälfte befindlichen Einsenkungen 7 so angeordnet, dass ihre Spitzen 8 in die gleiche Richtung weisen, während die Spitzen 8 aller Einsenkungen 7 zur Ankermitte bei 10 weisen. Diese Formgebung hat den Vorteil einer verbesserten Halterung jeder Hälfte der Flachstahlanker 5. In jeder Einsenkung 7 kann noch eine kleine Durchbrechung 9 zur Luftabführung bzw. zum Eindringen des Bindemittels vorgesehen sein. Ferner kann sich auch noch in der Ankermitte bei 10 eine quadratische oder ähnlich geformte Einsenkung 7 befinden.The parallel
Gemäss Fig. 4 und 5 sind die Längskanten 6 schwach zickzackförmig verlaufend gestaltet, sie erstrecken sich über die gesamte Ankerlänge und befinden sich auch auf beiden Seiten des Flachstahlankers.4 and 5, the
Die Kantenprofilierung wird durch eine gedachte, längs zum Anker verlaufende Gerade 11 bestimmt. Der Abstand der zu beiden Seiten befindlichen Geraden 11 entspricht dabei der Nennbreite bzw. der aktiven Breite B des Flachstahlankers. Bei der dargestellten Zickzackgestalt der Längskanten 6 verläuft der Körper des Flachstahlankers 5 insgesamt zickzackförmig, da die benachbarten, an gegenüberliegenden Seiten des Ankers befindlichen Kantenteile 12, 13 parallel zueinander verlaufen. Da die Gerade 11 die Kantenteile 12, 13 halbiert, ergeben sich von der Geraden 11 aus sich nach aussen erstreckende Vorsprünge 14 (schraffiert dargestellt) in Dreiecksform und ebenfalls schraffiert dargestellte Ausnehmungen 15 in Dreiecksform. Diese Dreiecke bzw. Vorsprünge 14 und Ausnehmungen 15 stimmen der Form nach und der Grösse nach deckungsgleich überein, wobei jedoch die Spitzen in entgegengesetzte Richtungen - quer zur Längsrichtung des Ankers - zeigen. Die Masse d stimmen also überein; die Länge L ist das Doppelte Mass der Dreiecke 14, 15. In der Praxis kann das Mass d etwa 2 - 4 mm betragen; das Mass L kann mit etwa 5 - 10 cm gewählt werden.The edge profiling is determined by an imaginary
Bei der Ausführung gemäss Fig. 6 verlaufend die Seitenkanten 6 in etwa nach einer Sinuslinie; die Masse s sind dann die Amplituden, während das Mass L die Schwingungsweite bestimmt.In the embodiment according to FIG. 6, the
Die Ausführung nach Fig. 9 zeigt eine gegenüber Fig. 5 verkleinerte Zickzackteilung. Aber auch hier werden die beiden Seitenkanten 6 so gestaltet, dass sich jeweils der Grund 16 einer Ausnehmung 15 der am weitesten ausladenden Stelle 17 der Vorsprünge 14 genau gegenüberliegt.The embodiment according to FIG. 9 shows a smaller zigzag division compared to FIG. 5. But here, too, the two
Ein besonderer Vorteil der Erfindung besteht darin, dass die Herstellung der einzelnen Flachstahlanker durch Abtrennen von einer Werkstoffbahn 18 geschehen kann, die auch einen Wickel 19 bilden kann, um so von diesem die Werkstoffbahn 18 abziehen zu können. Das Abtrennen der einzelnen Flachstahlanker 5 geschieht durch Schneiden, Stanzen oder dgl.. Mit dem Abtrennen wird dem Flachstahlanker seine endgültige abfallfreie Endgestalt vermittelt, also auch schon die besondere Profilierung der Seitenkanten 6. Dies ist deshalb möglich, weil die Grössen der Teilungen und der Vorsprünge bzw. Ausnehmungen (Flächen bei 14 und 15) alle aufeinander abgestimmt sind.A particular advantage of the invention is that the manufacture of the individual flat steel anchors can be done by separating them from a
Die Einsenkungen 7 und die Löcher 9 können zusammen mit dem Abtrennen der einzelnen Flachstahlanker 5 von der Werkstoffbahn 18 erzeugt werden.The
Claims (12)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19519925 | 1995-05-31 | ||
| DE19519925A DE19519925A1 (en) | 1995-05-31 | 1995-05-31 | Flat steel anchors for masonry and process for its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0745736A1 true EP0745736A1 (en) | 1996-12-04 |
| EP0745736B1 EP0745736B1 (en) | 2000-09-27 |
Family
ID=7763300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96107182A Expired - Lifetime EP0745736B1 (en) | 1995-05-31 | 1996-05-07 | Flat steel anchor for brickwork and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0745736B1 (en) |
| DE (2) | DE19519925A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161844A (en) * | 1984-07-11 | 1986-01-22 | Cd Truline Ltd | Wall tie |
| GB2190938A (en) * | 1986-05-27 | 1987-12-02 | Bodegraven Bv | A wall tie with bearing function for insulating material |
| GB2259532A (en) * | 1991-09-10 | 1993-03-17 | Wincro Metal Ind Ltd | A wall tie |
-
1995
- 1995-05-31 DE DE19519925A patent/DE19519925A1/en not_active Withdrawn
-
1996
- 1996-05-07 DE DE59605935T patent/DE59605935D1/en not_active Expired - Lifetime
- 1996-05-07 EP EP96107182A patent/EP0745736B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161844A (en) * | 1984-07-11 | 1986-01-22 | Cd Truline Ltd | Wall tie |
| GB2190938A (en) * | 1986-05-27 | 1987-12-02 | Bodegraven Bv | A wall tie with bearing function for insulating material |
| GB2259532A (en) * | 1991-09-10 | 1993-03-17 | Wincro Metal Ind Ltd | A wall tie |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59605935D1 (en) | 2000-11-02 |
| EP0745736B1 (en) | 2000-09-27 |
| DE19519925A1 (en) | 1996-12-05 |
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