AT45796B - Ramming mold for the production of longitudinally arched concrete girders with a preferably bell-shaped cross-section. - Google Patents

Ramming mold for the production of longitudinally arched concrete girders with a preferably bell-shaped cross-section.

Info

Publication number
AT45796B
AT45796B AT45796DA AT45796B AT 45796 B AT45796 B AT 45796B AT 45796D A AT45796D A AT 45796DA AT 45796 B AT45796 B AT 45796B
Authority
AT
Austria
Prior art keywords
mold
section
production
shaped cross
concrete girders
Prior art date
Application number
Other languages
German (de)
Inventor
Matthaeus Dutschmann
Original Assignee
Matthaeus Dutschmann
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 Matthaeus Dutschmann filed Critical Matthaeus Dutschmann
Application granted granted Critical
Publication of AT45796B publication Critical patent/AT45796B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/0029Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Stampfform zur Herstellung längsgewölbter Betonträger von vorzugsweise glockenformigem Querschnitt.   



   Es ist bereits bekannt, Eisenbetonträger in aufrechter Lage in liegenden Formen mit festen oder losen Böden oder Unterlagen herzustellen. Auf diesen   Unterlagen mii-sen   die Träger bis zur Erhärtung stehen bleiben, wobei sie oft antrocknen und mit Gewalt abgehoben werden müssen, so   dass   sie hierbei beschädigt werden. 



   Es ist ferner ein Verfahren zur Herstellung überhöhter Eisenbetonträger bekannt. bei welchem das Einstampfen bei umgekehrter Lage der Form   ausgeführt wird. acl dem   Stampfen wird dann die Form auf eine vorher entsprechend   hergerichtete Sandbettuug   umgekippt. Die auf diese Weise hergestellten, überhöhten Träger erhalten beim Kippen 
 EMI1.1 
 gewölbte Trager können auf diese Weise   überhaupt   nicht hergestellt   werden, da die Sand-   bettung nicht genügend standhält und das Kippen zu schwierig ist. 
 EMI1.2 
 förmige Betonträger in bekannter Weise in aufrechter Lage in eine   wagrechte Form ein-   gestampft. deren   Seitenwände   jedoch starke oder schwache Wölbungen, entsprechend der   erforderlichen Trägerwölbung, aufweisen.

   In diesen Formseitenwänden werden der Wölbung   
 EMI1.3 
 kann dann der   Betontrager   nach Entfernung der Formteile bis zu seiner Erhartung stehen   bleiben.   
 EMI1.4 
 schnitt dargestellt. 



   DieFormseitenwändebundcsindlängsgewölbtundunterbrochendurchmehrere 
 EMI1.5 
 hpiden   Enden/i   auf   Klötzen   a   aufliegen.   Die zwischen den Schlitzen l iegenden undurchbrochenen Stellen dienen zur Aufnahme der Klötze a, welche einmal d.'n Forrlhoden an den zwischen den einzelnen   Längsschlitze f liegen@en Stellen bilden und ferner auch   
 EMI1.6 
 

 <Desc/Clms Page number 2> 

 werden die seitlichen Formteile b und c abgenommen, so dass der Betonträger nunmehr zum Trocknen und Erhärten auf den Klötzen a sowie den Platten g, die unter Umständen aber auch herausgezogen werden können, stehen bleibt. 



   Es wird hiebei also einmal die grosse Masse der kostspieligen, aus einem Stück hergestellten Böden oder Unterlagen vermieden und ferner werden die unteren Flächen der   Träger   heim Entfernen vom Herstellungsorte nicht mehr beschädigt, da die Träger auf diesen Klötzen und Platten nicht fest anhaften können, so dass das Abheben keine Schwierigkeiten macht.



   <Desc / Clms Page number 1>
 



    Ramming mold for the production of longitudinally arched concrete beams with a preferably bell-shaped cross-section.



   It is already known to produce reinforced concrete girders in an upright position in lying forms with solid or loose floors or bases. The supports must remain on these supports until they have hardened, whereby they often dry out and have to be lifted with force, so that they are damaged in the process.



   There is also known a method for producing elevated reinforced concrete beams. in which the tamping is carried out with the mold reversed. After the tamping, the mold is then tipped over onto a previously prepared sand bed. The raised girders produced in this way are preserved when tipped
 EMI1.1
 Arched girders cannot be made in this way at all, since the sand bed does not hold up sufficiently and tilting is too difficult.
 EMI1.2
 shaped concrete girders stamped in a known manner in an upright position in a horizontal shape. however, their side walls have strong or weak curvatures, corresponding to the required curvature of the beam.

   In these mold side walls are the bulge
 EMI1.3
 the concrete support can then remain in place after the molded parts have been removed until it hardens.
 EMI1.4
 section shown.



   The mold side wall bands are arched lengthways and interrupted by several
 EMI1.5
 hpiden ends / i rest on blocks a. The uninterrupted points lying between the slits serve to accommodate the blocks a, which form the d 'n Forrlhoden at the places between the individual longitudinal slits f and also
 EMI1.6
 

 <Desc / Clms Page number 2>

 the side moldings b and c are removed so that the concrete beam now remains to dry and harden on the blocks a and the plates g, which can also be pulled out under certain circumstances.



   The large mass of expensive floors or bases made from one piece is avoided and the lower surfaces of the beams are no longer damaged when they are removed from the place of manufacture, since the beams cannot adhere firmly to these blocks and plates, so that taking off is no problem.

 

Claims (1)

PATENT-ANSPRUCH : Stampfform zur Herstellung längsgewölbter Betonträger von vorzugsweise glockenförmigem Querschnitt, dadurch gekennzeichnet, dass in den der beabsichtigten Trägerwölbung entsprechend gewölbten Formseitenwänden Längsschlitze angebracht sind, in welche den Formboden brldende Eisonplatton eingeschoben werden, während die nach unten offenen Stellen zwischen den Schlitzen durch Klötze ausgefüllt werden, auf welchen der Betonträger bis zu seiner Erhärtung stehen bleiben kann. EMI2.1 PATENT CLAIM: Ramming mold for the production of longitudinally arched concrete girders of preferably bell-shaped cross-section, characterized in that longitudinal slots are made in the side walls of the mold, which are arched corresponding to the intended arching of the girder, into which the bottom of the mold is inserted, while the downward open areas between the slots are filled with blocks which the concrete beam can remain until it hardens. EMI2.1
AT45796D 1910-01-12 1910-01-12 Ramming mold for the production of longitudinally arched concrete girders with a preferably bell-shaped cross-section. AT45796B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT45796T 1910-01-12

Publications (1)

Publication Number Publication Date
AT45796B true AT45796B (en) 1911-01-10

Family

ID=3565756

Family Applications (1)

Application Number Title Priority Date Filing Date
AT45796D AT45796B (en) 1910-01-12 1910-01-12 Ramming mold for the production of longitudinally arched concrete girders with a preferably bell-shaped cross-section.

Country Status (1)

Country Link
AT (1) AT45796B (en)

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