AT302593B - Lost formwork for the production of ribbed concrete ceilings - Google Patents

Lost formwork for the production of ribbed concrete ceilings

Info

Publication number
AT302593B
AT302593B AT898270A AT898270A AT302593B AT 302593 B AT302593 B AT 302593B AT 898270 A AT898270 A AT 898270A AT 898270 A AT898270 A AT 898270A AT 302593 B AT302593 B AT 302593B
Authority
AT
Austria
Prior art keywords
ribs
formwork
concrete
area
longitudinal
Prior art date
Application number
AT898270A
Other languages
German (de)
Original Assignee
Leo Kilian Ing
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 Leo Kilian Ing filed Critical Leo Kilian Ing
Priority to AT898270A priority Critical patent/AT302593B/en
Application granted granted Critical
Publication of AT302593B publication Critical patent/AT302593B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

  

  



   PATENTANSPRUCH : 
Verlorene Schalung zur Herstellung von Betonrippendecken einschliesslich der Betonrippen aus Ortbeton, bestehend aus Schalkörpern in Form von in Längsrichtung der Decke verlaufenden, mit Längsrippen versehenen Blech- bzw. Kunststoffprofilen, die über aufgebogene Randstreifen miteinander verbunden sind, 
 EMI1.1 
 untersten Teiles der Betonrippen   (1)   dienenden Bereich der Schalkörper (2) angeordnet sind und dass der zwischen den Längsrippen (5) liegende gewölbte Bereich der Schalkörper (2) mit Querrippen (4) versehen ist. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



  



   PATENT CLAIM:
Permanent formwork for the production of ribbed concrete ceilings including the concrete ribs made of in-situ concrete, consisting of formwork bodies in the form of sheet metal or plastic profiles running in the longitudinal direction of the ceiling, provided with longitudinal ribs, which are connected to one another via bent-up edge strips,
 EMI1.1
 The lower part of the concrete ribs (1) serving area of the formwork body (2) are arranged and that the arched area of the formwork body (2) lying between the longitudinal ribs (5) is provided with transverse ribs (4).

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

<Desc/Clms Page number 1> <Desc / Clms Page number 1> Die Erfindung bezieht sich auf eine verlorene Schalung zur Herstellung von Betonrippendecken einschliesslich der Betonrippen aus Ortbeton, bestehend aus Schalkörpern in Form von in Längsrichtung der Decke verlaufenden, mit Längsrippen versehenen Blech-bzw. Kunststoffprofilen, die über aufgebogene Randstreifen miteinander verbunden sind. The invention relates to a permanent formwork for the production of ribbed concrete ceilings including the concrete ribs made of in-situ concrete, consisting of formwork bodies in the form of in the longitudinal direction of the Sheet metal or sheet metal extending along the ceiling and provided with longitudinal ribs. Plastic profiles that are bent over Edge strips are connected to each other. Es ist bereits eine derartige Schalung bekanntgeworden, die dazu bestimmt war, nicht nur die Form des eingebrachten Ortbetons zu bestimmen, sondern auch die statischen Eigenschaften der fertigen Decke mitzubeeinflussen. Tatsächlich hat die vorbeschriebene Einrichtung in die Praxis keinen Eingang gefunden, was darauf zurückzuführen sein dürfte, dass dort Versteifungsrippen nur in Form von Längsrippen vorgesehen sind, die im Mittelbereich der zwischen den Betonrippen ausgesparten Hohlräume verlaufen. Im Bereich der Rippen selbst befinden sich bei der bekannten Einrichtung einzelne entlang der Seitenwand der Rippen verlaufende Knickfalten, die lediglich der Anbringung einer Untersicht dienen. Such a formwork has already become known, which was intended not only to determine the shape of the cast-in-place concrete, but also to influence the static properties of the finished ceiling. In fact, the device described above has not found its way into practice, which is likely to be due to the fact that stiffening ribs are only provided there in the form of longitudinal ribs which run in the central area of the cavities cut out between the concrete ribs. In the area of the ribs themselves there are individual ones running along the side wall of the ribs in the known device Creases that are only used to attach a soffit Naturgemäss können durch am First der gewölbten Schalungen verlaufenden Längsrippen keine wesentlichen Kräfte in die Auflager geleitet werden, auf die sich die Unterseite der Rippen abstützt. Die vorbeschriebene Anordnung könnte ihren Zweck also nur mit unverhältnismässig hohem Materialaufwand erreichen. Naturally, through the longitudinal ribs running on the ridge of the arched formwork, no significant forces can be conducted into the supports on which the underside of the ribs is supported. The arrangement described above could therefore only achieve its purpose with a disproportionately high amount of material. Aufgabe der Erfindung ist es demgegenüber, eine Schalung zu schaffen, bei der unter möglichst geringem Materialaufwand die Weiterleitung in die Schalung eingeleiteter Kräfte über grosse Spannweiten zu den beidseitig unterhalb der Betonrippen angeordneten Auflagern erfolgt. Zu diesem Zweck ist erfindungsgemäss vorgesehen, dass die Längsrippen der Schalkörper in dem zur Formung des untersten Teiles der Betonrippen dienenden Bereich der Schalkörper angeordnet sind und dass der zwischen den Längsrippen liegende gewölbte Bereich der Schalkörper mit Querrippen versehen ist. The object of the invention, on the other hand, is to create a formwork in which the least possible Material costs The transmission of forces introduced into the formwork takes place over large spans to the supports arranged below the concrete ribs on both sides. For this purpose, it is provided according to the invention that the longitudinal ribs of the formwork body are used in the one used to shape the lowermost part of the concrete ribs Area of the shell body are arranged and that the arched area lying between the longitudinal ribs of the Shell body is provided with transverse ribs. Die Form der Versteifungsrippen spielt dabei eine untergeordnete Rolle, ihre Auswahl kann dem Fachmann im Einzelfall überlassen bleiben. Wesentlich ist jedoch die Anordnung der Längsrippen in jenem Bereich der Schalung, der die Weiterleitung von Längskräften in die Auflager bewirkt und die Ableitung der im Schalungsgewölbe auftretenden Kräfte auf möglichst kurzem Wege zu den die Längskräfte aufnehmenden Rippen. The shape of the stiffening ribs plays a subordinate role, your selection can be Be left to a specialist in individual cases. What is essential, however, is the arrangement of the longitudinal ribs in that area of the formwork which causes the transmission of longitudinal forces into the supports and the dissipation of the forces occurring in the formwork vault over the shortest possible path to the ribs that absorb the longitudinal forces. Ein Ausführungsbeispiel der Erfindung wird anschliessend an Hand der Zeichnungen diskutiert. Fig. 1 stellt dabei einen Schnitt durch die fertige Rippendecke dar, Fig. 2 einen Ausschnitt aus der Seitenansicht des Schalkörpers und Fig. 3 eine Vergrösserung des Verbindungsbereiches zweier Schalkörper. An embodiment of the invention will then be discussed with reference to the drawings. 1 shows a section through the finished ribbed ceiling, FIG. 2 shows a detail from the side view of the formwork body and FIG. 3 shows an enlargement of the connecting area of two formwork bodies. Bei der Herstellung einer Betonrippendecke mit vorzugsweise bewehrten Betonrippen-l-werden zunächst die Schalkörper-2--nebeneinander verlegt und in Längsrichtung miteinander verbunden. Durch die erfindungsgemässe Ausbildung der Schalkörper ist deren unterstellungsfreie Verlegung über grosse Spannweiten möglich. Wie besonders aus Fig. 2 und 3 hervorgeht, wird nämlich der Druck des aufgebrachten Ortbetons über die Querrippen --4-- in den in Längsrichtung versteiften unteren Bereich der Schalkörper --2-- übertragen. When producing a ribbed concrete ceiling with preferably reinforced concrete ribs-1-the formwork bodies-2-are first laid next to one another and connected to one another in the longitudinal direction. The inventive design of the formwork bodies enables them to be laid over large spans without shutting them down. As can be seen in particular from Figs. 2 and 3, the pressure of the cast-in-place concrete is transferred via the transverse ribs --4-- into the longitudinally stiffened lower area of the formwork bodies --2--. In diesem Bereich sind die Schalkörper in ihrer ganzen Länge mit dem benachbarten Schalkörper verbunden. In this area the shell bodies are connected to the adjacent shell body over their entire length. Hiezu kommen beispielsweise Umbördelungen--3--an den Seitenrändern der Schalkörper--2--. There are also flanges - 3 - on the side edges of the shell bodies - 2--. Das wichtigste Merkmal der Schalkörper --2-- sind die im Bereich der unteren Kanten der Betonrippen angeordneten Längsrippen --5--, die sicherstellen, dass der wesentliche Teil der in die Schalung eingeleiteten Kräfte in Längsrichtung zu den Auflagern übertragen wird. Die notwendige Versteifung des unteren Bereiches der Schalkörper kann dabei durch verschiedene Rippenquerschnitte, beispielsweise durch wellblechartige oder mäanderförmige Ausbildung der Ränder der Schalkörper --2-- erreicht werden. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. The most important feature of the formwork --2-- are the longitudinal ribs --5-- arranged in the area of the lower edges of the concrete ribs, which ensure that the major part of the forces introduced into the formwork is transmitted in the longitudinal direction to the supports. The necessary stiffening of the lower area of the formwork bodies can be achieved by different rib cross-sections, for example by means of corrugated sheet-like or meander-shaped design of the edges of the formwork bodies --2--. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT898270A 1970-10-05 1970-10-05 Lost formwork for the production of ribbed concrete ceilings AT302593B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT898270A AT302593B (en) 1970-10-05 1970-10-05 Lost formwork for the production of ribbed concrete ceilings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT898270A AT302593B (en) 1970-10-05 1970-10-05 Lost formwork for the production of ribbed concrete ceilings

Publications (1)

Publication Number Publication Date
AT302593B true AT302593B (en) 1972-10-25

Family

ID=3610179

Family Applications (1)

Application Number Title Priority Date Filing Date
AT898270A AT302593B (en) 1970-10-05 1970-10-05 Lost formwork for the production of ribbed concrete ceilings

Country Status (1)

Country Link
AT (1) AT302593B (en)

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee