EP1130184A2 - Ferroconcrete column - Google Patents

Ferroconcrete column Download PDF

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Publication number
EP1130184A2
EP1130184A2 EP01104125A EP01104125A EP1130184A2 EP 1130184 A2 EP1130184 A2 EP 1130184A2 EP 01104125 A EP01104125 A EP 01104125A EP 01104125 A EP01104125 A EP 01104125A EP 1130184 A2 EP1130184 A2 EP 1130184A2
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EP
European Patent Office
Prior art keywords
steel
support according
strength
concrete
column
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Granted
Application number
EP01104125A
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German (de)
French (fr)
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EP1130184B1 (en
EP1130184A3 (en
Inventor
Horst Prof. Dr.-Ing. Falkner
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FALKNER HORST PROF DR ING
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FALKNER HORST PROF DR ING
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Application filed by FALKNER HORST PROF DR ING filed Critical FALKNER HORST PROF DR ING
Publication of EP1130184A2 publication Critical patent/EP1130184A2/en
Publication of EP1130184A3 publication Critical patent/EP1130184A3/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • 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
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The support (1) comprises a high strength concrete material and a length direction reinforcing structure (2) made from high strength steel. The open ends of the reinforcing structure are sealed by bonding or spot-welding head and foot plates (6, 7) to it. A bow frame (3) or spirally wound reinforcing structure extends around the length direction reinforcing structure.

Description

Die Erfindung betrifft eine Stahlbeton-Stütze.The invention relates to a reinforced concrete column.

Gemäß DIN 1045-1 Ziffer 3.1 (24) beschreibt die Bezeichnung "Stütze" ein stabförmiges Druckglied, dessen größere Querschnittsabmessung das Vierfache der kleineren Abmessung nicht übersteigt.According to DIN 1045-1 number 3.1 (24), the term "support" describes rod-shaped pressure element, the larger cross-sectional dimension of which is four times does not exceed the smaller dimension.

Der Erfindung liegt die Aufgabe zugrunde, eine höchste Traglasten beim kleinsten Querschnitt aufnehmende Stahlbeton-Stütze zu entwickeln, die gegebenenfalls auch als Fertigteil angeliefert werden kann.The invention has for its object a maximum payload at the smallest Develop cross-sectional reinforced concrete column, if necessary can also be delivered as a finished part.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Stahlbeton-Stütze, bestehend aus hochfestem Beton und einer aus hochfestem Stahl bestehenden Längsbewehrung, die an den Stützenenden mit einer stählernen Kopf- bzw. Fußplatte durch Anklebung oder Punktschweißung kraftschlüssig verbunden sind, und mit einer Bügel- bzw. Wendelbewehrung. According to the invention, this object is achieved by a reinforced concrete column, consisting of high-strength concrete and one made of high-strength steel Longitudinal reinforcement with a steel head or base plate non-positively connected by gluing or spot welding are, and with a stirrup or spiral reinforcement.

Gemäß DIN 1045-1 Ziffer 3.1 (7) bezeichnet "hochfester Beton" einen Beton der Festigkeitsklassen C55/67 - C100/115 mit einer Trockenrohdichte über 2.100 kg/m3, höchstens aber 2.600 kg/m3 (nach DIN 1045-2). Nach DIN 1045 versteht man unter hochfesten Betonen solche, die hinsichtlich ihrer Festigkeit über die Festigkeitsklasse C 50/60 nach DIN 1045 hinausgehen, z.B. einen C 80/95. Um die erforderliche hohe Festigkeit des Zementsteins zu erreichen, werden hochfeste Betone mit einem sehr geringen Wasser/Zement-Wert von im allgemeinen unter 0,40 hergestellt. Solche Betone sind für flüssiges Wasser undurchlässig, und die Diffusion von Wasserdampf erfolgt sehr langsam und ist gleichgewichtsabhängig. In Abhängigkeit von den Umgebungsbedingungen, insbesondere von der relativen Luftfeuchte, stellt sich im Beton ein Feuchtegleichgewicht ein, so dass der Beton in der Regel mehr als 3 Gew.-% Wasser enthält.According to DIN 1045-1 number 3.1 (7), "high-strength concrete" denotes concrete of strength classes C55 / 67 - C100 / 115 with a dry bulk density of over 2,100 kg / m 3 , but at most 2,600 kg / m 3 (according to DIN 1045-2) . According to DIN 1045, high-strength concretes are those that exceed the strength class C 50/60 according to DIN 1045, for example a C 80/95. In order to achieve the required high strength of the cement block, high-strength concretes with a very low water / cement value of generally less than 0.40 are produced. Such concretes are impermeable to liquid water, and the diffusion of water vapor is very slow and depends on the balance. Depending on the ambient conditions, in particular the relative air humidity, a moisture equilibrium is established in the concrete, so that the concrete generally contains more than 3% by weight of water.

Der erfindungsgemäß einzusetzende hochfeste Stahl ist vorzugsweise nicht kaltgereckt und weist eine Güte > S 500 auf. Vorzugsweise wird Stahl S 835/1030 gemäß DIN EN 10138, Teil 4, eingesetzt; dieser hat also eine Nennzugfestigkeit von zumindest 1030 N/mm2. Erfindungsgemäß werden somit keine Baustähle, sondern Stähle größerer Festigkeit eingesetzt. Es können hochfeste gerippte Längsstäbe aber auch glatte Stähle eingesetzt werden.The high-strength steel to be used according to the invention is preferably not cold-drawn and has a quality> S 500. Steel S 835/1030 according to DIN EN 10138, part 4 is preferably used; this has a nominal tensile strength of at least 1030 N / mm 2 . According to the invention, therefore, no structural steels are used, but steels of greater strength. High-strength ribbed longitudinal bars but also smooth steels can be used.

Erfindungsgemäß kann durch einen Zusatz von Stahlfasern oder Spänen das Sprödbruchverhalten des hochfesten Betons verbessert werden. Dabei können diese Stahlfasern oder Späne eine Länge von 25 - 60 mm aufweisen.According to the invention, this can be done by adding steel fibers or chips Brittle fracture behavior of the high-strength concrete can be improved. You can these steel fibers or chips have a length of 25 - 60 mm.

Ferner kann es zweckmäßig sein, wenn der Beton einen Zusatz von Kunststofffasern enthält, die durch Erweichen, Schmelzen oder Zersetzen bei Temperaturen von 150 - 300°C ein Kapillarsystem ausbilden können. Es ist bereits bekannt und durch die DE 42 20 274 C2 bzw. die EP 0 575 886 B1 unter Schutz gestellt, durch Zusatz derartiger Fasern bei Bauteilen aus hochfesten Betonen, insbesondere Stahlbetonbauteilen, das destruktive Abplatzen unter Brandbeanspruchung zu verhindern. Dabei weist das genannte Kapillarsystem im wesentlichen lineare Kapillare mit einem Durchmesser zwischen 10 und 100 m und einer Länge zwischen 5 und 35 mm aus.It may also be useful if the concrete is an addition of plastic fibers contains by softening, melting or decomposing at temperatures can form a capillary system from 150 - 300 ° C. It is already known and by DE 42 20 274 C2 and EP 0 575 886 B1 Protection provided by the addition of such fibers in components made of high-strength Emphasize, especially reinforced concrete components, the destructive flaking under To prevent fire exposure. The capillary system mentioned essentially linear capillary with a diameter between 10 and 100 m and a length between 5 and 35 mm.

Eine erfindungsgemäße Stütze kann eine sich über ein oder mehrere Geschosshöhen erstreckende Länge aufweisen. Es ist dann zweckmäßig, wenn jeweils eine in Höhe eines Geschosses eingearbeitete, gegebenenfalls mit einem Füllmaterial ausgefüllte Tasche vorgesehen wird.A support according to the invention can extend over one or more storey heights have extending length. It is useful if one in each case at the level of a storey, possibly with one Filling material filled bag is provided.

Die erfindungsgemäßen Stützen werden vorzugsweise als Fertigteilelemente liegend betoniert und verdichtet. Grundsätzlich ist aber auch eine Herstellung als Ortbetonstütze möglich.The supports according to the invention are preferably used as prefabricated elements concreted and compacted horizontally. Basically, however, is also a manufacture possible as in-situ concrete column.

Für eine erfindungsgemäße Stütze gilt, dass der hochfeste Beton sowohl bei der Traglast als auch im Brandfall zusammen mit dem hochfesten Stahl die Lasten bzw. Beanspruchung aus Brand abträgt bzw. übersteht. Die Erfindung erfasst auch solche Stützen, die keine Anschlussbewehrung besitzen, sondern nur mit einem Dollen in ihrer Lage fixiert werden. For a prop according to the invention, the high-strength concrete applies to both the load capacity as well as in the event of fire together with the high-strength steel Carries or survives loads or stresses from fire. The invention also detects columns that do not have connecting reinforcement, but only be fixed in place with a oarlock.

In der Zeichnung ist eine als Beispiel dienende Ausführungsform der Erfindung schematisch dargestellt. Es zeigen

Figur 1
eine Stütze im lotrechten Schnitt;
Figur 2
einen Schnitt gemäß der Linie A-A der Figur 1;
Figur 3
einen äußeren Bügel der Bewehrung in Draufsicht und
Figur 4
in einer Darstellung gemäß Figur 3 einen inneren Bügel.
An exemplary embodiment of the invention is shown schematically in the drawing. Show it
Figure 1
a vertical section;
Figure 2
a section along the line AA of Figure 1;
Figure 3
an outer bracket of the reinforcement in plan view and
Figure 4
in an illustration according to Figure 3, an inner bracket.

Figur 1 zeigt eine Stahlbeton-Stütze 1 mit einer Längsbewehrung aus hochfestem Stahl. Vorgesehen sind Längsstäbe 2, die von äußeren Bügeln 3 und inneren Bügeln 4 umgriffen sind, die im Bereich der Stützenenden etwas dichter angeordnet sind als über dem mittleren Längsabschnitt der Stütze 1.Figure 1 shows a reinforced concrete column 1 with a longitudinal reinforcement made of high strength Steel. Longitudinal bars 2 are provided, that of outer brackets 3 and inner ones Brackets 4 are encompassed, which are somewhat denser in the area of the support ends are arranged as above the central longitudinal section of the support 1.

Die Betondeckung ist mit dem Bezugszeichen 5 gekennzeichnet.The concrete cover is identified by reference number 5.

Die Längsstäbe 2 sind an den Stützenenden mit einer stählernen Kopfplatte 6 bzw. Fußplatte 7 durch Anklebung oder Punktschweißung kraftschlüssig verbunden. Ein Dollen 8 kann zur Lagefixierung zusätzlich angebracht sein.The longitudinal bars 2 have a steel head plate 6 at the ends of the supports or base plate 7 non-positively connected by gluing or spot welding. An oar 8 can also be attached to fix the position.

Claims (8)

Stahlbeton-Stütze, bestehend aus hochfestem Beton und einer aus hochfestem Stahl bestehenden Längsbewehrung (2), die an den Stützenenden mit einer stählernen Kopf- bzw. Fußplatte (6, 7) durch Anklebung oder Punktschweißung kraftschlüssig verbunden sind, und mit einer Bügel- bzw. Wendelbewehrung (3, 4).Reinforced concrete column, consisting of high-strength concrete and one of high-strength Steel existing longitudinal reinforcement (2) on the column ends with a steel head or foot plate (6, 7) by gluing or Spot welding are non-positively connected, and with a bracket or spiral reinforcement (3, 4). Stütze nach Anspruch 1, gekennzeichnet durch einen hochfesten Beton einer Güte > C 50/60, vorzugsweise der Festigkeitsklasse C 100/115.Support according to claim 1, characterized by a high-strength concrete quality> C 50/60, preferably strength class C 100/115. Stütze nach Anspruch 1 oder 2, gekennzeichnet durch einen hochfesten Stahl mit einer Güte > S 500.Support according to claim 1 or 2, characterized by a high-strength Steel with a grade> S 500. Stütze nach Anspruch 1, 2 oder 3, gekennzeichnet durch einen Zusatz von Stahlfasern oder Stahlspänen.Support according to claim 1, 2 or 3, characterized by the addition of Steel fibers or steel chips. Stütze nach Anspruch 4, dadurch gekennzeichnet, dass die Stahlfasern oder Stahlspäne eine Länge von 25 - 60 mm aufweisen. Support according to claim 4, characterized in that the steel fibers or steel chips have a length of 25-60 mm. Stütze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Beton Kunststofffasern enthält, die durch Erweichen, Schmelzen oder Zersetzen bei Temperaturen von 150 - 300°C ein Kapillarsystem ausbilden können.Support according to one of the preceding claims, characterized in that the concrete contains plastic fibers which can form a capillary system by softening, melting or decomposing at temperatures of 150-300 ° C. Stütze nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine sich über eine oder mehrere Geschosshöhen erstreckende Länge.Support according to one of the preceding claims, characterized by a length that extends over one or more storey heights. Stütze nach Anspruch 7, gekennzeichnet durch jeweils eine in Höhe eines Geschosses eingearbeitete, gegebenenfalls mit einem Füllmaterial ausgefüllte Tasche.Support according to claim 7, characterized by one each in the amount of Storey incorporated, possibly filled with a filler Bag.
EP01104125A 2000-02-29 2001-02-21 Ferroconcrete column Expired - Lifetime EP1130184B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10009374 2000-02-29
DE10009374A DE10009374A1 (en) 2000-02-29 2000-02-29 Steel concrete support, comprises length and cross direction steel reinforcing structures which are covered with concrete and sealed at both ends with plates

Publications (3)

Publication Number Publication Date
EP1130184A2 true EP1130184A2 (en) 2001-09-05
EP1130184A3 EP1130184A3 (en) 2001-12-12
EP1130184B1 EP1130184B1 (en) 2005-08-31

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ID=7632721

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EP01104125A Expired - Lifetime EP1130184B1 (en) 2000-02-29 2001-02-21 Ferroconcrete column

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EP (1) EP1130184B1 (en)
AT (1) ATE303480T1 (en)
DE (2) DE10009374A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010212B1 (en) * 2007-05-23 2008-06-30 Общество С Ограниченной Ответственностью «Научно-Технический И Экспериментально-Проектный Центр "Аркос"» A composite reinforced concrete column

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324291A1 (en) * 2003-05-21 2004-12-16 Weiske, Rainer, Dipl.-Ing. Reinforcement component for roof slabs to enhance their load bearing capacity comprises vertical steel rods arranged parallel to each other at equal distances by clamps, whereby longitudinal axes of rods lie in direction of load

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575886B1 (en) 1992-06-20 1997-03-12 Hans Jaklin Non-flaking fire resistant concrete or mortar

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7316215U (en) * 1973-04-28 1974-10-17 Hochtief Ag Reinforced concrete column
FR2491977A1 (en) * 1980-10-15 1982-04-16 Saret Joint connection for building frame in reinforced concrete - has open reinforcement column cage retaining angled beams with connecting bars
DE3543369A1 (en) * 1985-12-07 1987-06-11 Trigon Bewehrungstechnik Vertr Process for reinforcing prefabricated reinforced-concrete compound units and apparatus for carrying out the process
CH688285A5 (en) * 1992-12-22 1997-07-15 Sacac Hergiswil Ag Building support made of concrete
US5809712A (en) * 1996-06-06 1998-09-22 Simanjuntak; Johan Hasiholan System for joining precast concrete columns and slabs
AU722320B2 (en) * 1996-07-16 2000-07-27 R. O'rourke And Son Limited Improvements in or relating to concrete structures
EP0861948A1 (en) * 1997-02-28 1998-09-02 N.V. Bekaert S.A. Steel fibre for reinforcement of high-performance concrete

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575886B1 (en) 1992-06-20 1997-03-12 Hans Jaklin Non-flaking fire resistant concrete or mortar
DE4220274C2 (en) 1992-06-20 1997-08-21 Hans Jaklin Shatter resistant to flaking under fire conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010212B1 (en) * 2007-05-23 2008-06-30 Общество С Ограниченной Ответственностью «Научно-Технический И Экспериментально-Проектный Центр "Аркос"» A composite reinforced concrete column

Also Published As

Publication number Publication date
ATE303480T1 (en) 2005-09-15
EP1130184B1 (en) 2005-08-31
DE10009374A1 (en) 2001-08-30
DE50107241D1 (en) 2005-10-06
EP1130184A3 (en) 2001-12-12

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