DE723701C - Reinforcement bar for reinforced concrete structures - Google Patents

Reinforcement bar for reinforced concrete structures

Info

Publication number
DE723701C
DE723701C DEP79396D DEP0079396D DE723701C DE 723701 C DE723701 C DE 723701C DE P79396 D DEP79396 D DE P79396D DE P0079396 D DEP0079396 D DE P0079396D DE 723701 C DE723701 C DE 723701C
Authority
DE
Germany
Prior art keywords
reinforced concrete
concrete structures
reinforcement bar
steel
reinforcement
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
Application number
DEP79396D
Other languages
German (de)
Inventor
Erich Packhaeuser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEP79396D priority Critical patent/DE723701C/en
Application granted granted Critical
Publication of DE723701C publication Critical patent/DE723701C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/06Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0693Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/10Rope or cable structures
    • D07B2201/1096Rope or cable structures braided
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2501/00Application field
    • D07B2501/20Application field related to ropes or cables
    • D07B2501/2015Construction industries
    • D07B2501/2023Concrete enforcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

Bewehrungsstab f,betonkonstruktionen Die Erfindung b -trifft einen Bewehrungsstab für Eisenbetonkonstruktionen. Für hochbeanspruchte Eisenbetonbauteile genügt zumeist d'e normale Haftung zwischen Beton und Eisen insbesondere deswegen nicht, weil mit dem Fortschritt des Eisenbetons und zur Materialersparnis hochwertiger Stahl als Bewehrung verwendet wird, dessen geringerer Querschnitt aber zum Nachteil des Gesamtquerschnittes eine noch viel geringere Haftfläche besitzt. Um nun die Haftfläche im gleichen Verhältnis wie die Gütesteigerung des Stahls zu vergrößern, sind bereits Au-führungen von Bewehrungsstahl bekanntgeworden, die teils dahin gehen, der Oberfläche durch Anwalzen von Erhebungen oder Vertiefungen größere Haftfähigkeit zu geben, oler es sind Stäbe paarweise bzw. mit kreuzförmig gewalzten Querschnitten um die Längsachse gedreht worden, wodurch eine größere Haftung herbeigeführt werden sollte. Diese Maßnahmen reichen jedoch nicht aus, um die Haftfläche im gleichen Maße zu erhöhen, wie es die Güte des hochqualifizierten Stahls hinsichtlich seiner Zugspannung zuläßt.Reinforcing bar f, concrete structures The invention b - meets one Reinforcing bar for reinforced concrete structures. For highly stressed reinforced concrete components For this reason in particular, normal adhesion between concrete and iron is usually sufficient not because, with the advancement of reinforced concrete and material savings, it is of higher quality Steel is used as reinforcement, but its smaller cross-section is a disadvantage of the overall cross-section has an even smaller adhesive surface. To now the To increase the adhesive surface in the same proportion as the increase in the quality of the steel, versions of reinforcing steel have already become known, some of which go as far as the surface by rolling on elevations or depressions greater adhesion to give, or there are bars in pairs or with cross-shaped rolled cross-sections rotated around the longitudinal axis, whereby a greater adhesion can be brought about should. However, these measures are not sufficient to keep the adhesive surface in the same To increase dimensions, as it is the quality of the highly qualified steel in terms of its Tensile stress allows.

Durch den Erfindungsgegenstand sollen diese Nachteile insofern beseitigt werden, als die Haftung nicht nur durch das Anbinden des Betons an der Stahloberfläche herbeigeführt wird, sondern der Beton in jedem Querschnitt und in jeder Richtung durch den Stab hindurchdringen kann, wodurch die Haftfestigkeit bedeutend erhöht werden kann. Ferner besitzt der Bewehrungsstab infolge der vielen schlangenlinienförmigen Windungen der einzelnen untereinander zu einem Ganzen verflochtenen Drähte in sich eine hohe federnde Elastizität. Ein weiterer Vorteil wird auch in der günstigen Verwendungsmöglichkeit des Bewehrungsstal.es gemäß d-I-r Erfindung für Eisenbetonkonstruktionen mit vorgespannterZugbewehrung gesehen, weil er gegenüber verwundenen Bewehrungseinlagen bei beliebig großer Streckung nicht nur kein gegenwirkendes Drehbestreben hat, sondern weil er infolge seiner federnden Elastizität auch ein hohes Dehnungsvermögen aufweist.The subject matter of the invention is intended to eliminate these disadvantages as the adhesion not only through the bonding of the concrete to the steel surface is brought about, but the concrete in every cross-section and in every direction can penetrate through the rod, whereby the adhesive strength increases significantly can be. Furthermore, the rebar has because of the many serpentine-shaped Coils of the individual wires intertwined into a whole high resilience. Another advantage is also in the cheap Possibility of using the Reinforcement Stal.es according to d-I-r invention for reinforced concrete structures seen with prestressed tensile reinforcement because it is opposite to twisted reinforcement layers not only does it not have a counteracting tendency to rotate at any desired elongation, but because it also has a high elasticity due to its resilient elasticity.

Die Ei findung besteht nun darin, daß mehrere, z. B. 3 oder q. Stahldrähte maschinell untereinander verflochten sind.The egg finding is now that several, z. B. 3 or q. Steel wires are mechanically interwoven.

Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt, und zwar zeigen Abb. i einen Bewehrungsstab, bestehend aus vier untereinander verflochtenen Stahldrähten in der Seitenansicht,.The drawing shows an embodiment of the subject matter of the invention shown, namely Fig. i show a reinforcing bar, consisting of four one below the other braided steel wires in the side view ,.

Abb. a denselben Bewehrungsstab in der Draufsicht. Für beide Abbildungen sind links und rechts die zugehörigen Schnitte aufgetragen.Fig. A the same rebar in plan view. For both pictures the corresponding sections are plotted on the left and right.

Claims (1)

PATENTANSPRUCH: Bewehrungsstab für Eisenbetonkonstruktionen, dadurchgekennzeichnet, daßmehrere, z. B. 3 oder q. Stahldrähte untereinander verflochten sind.PATENT CLAIM: Reinforcing bar for reinforced concrete structures, characterized that several, z. B. 3 or q. Steel wires are intertwined.
DEP79396D 1939-07-06 1939-07-06 Reinforcement bar for reinforced concrete structures Expired DE723701C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP79396D DE723701C (en) 1939-07-06 1939-07-06 Reinforcement bar for reinforced concrete structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP79396D DE723701C (en) 1939-07-06 1939-07-06 Reinforcement bar for reinforced concrete structures

Publications (1)

Publication Number Publication Date
DE723701C true DE723701C (en) 1942-08-10

Family

ID=7393544

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP79396D Expired DE723701C (en) 1939-07-06 1939-07-06 Reinforcement bar for reinforced concrete structures

Country Status (1)

Country Link
DE (1) DE723701C (en)

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