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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds 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
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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.
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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
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kann dann der Betontrager nach Entfernung der Formteile bis zu seiner Erhartung stehen bleiben.
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schnitt dargestellt.
DieFormseitenwändebundcsindlängsgewölbtundunterbrochendurchmehrere
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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
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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
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Arched girders cannot be made in this way at all, since the sand bed does not hold up sufficiently and tilting is too difficult.
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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
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the concrete support can then remain in place after the molded parts have been removed until it hardens.
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section shown.
The mold side wall bands are arched lengthways and interrupted by several
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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
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<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)
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) |
-
1910
- 1910-01-12 AT AT45796D patent/AT45796B/en active
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