DE1890783U - FORMWORK BODY FOR THE PRODUCTION OF REINFORCED CONCRETE RIBBED SLABS. - Google Patents

Description

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PATENT LAWYERS

DR.-ING. BY KREISLER DR.-ING. SCHÖNWALD PE DR.-ING. TH. MEYER Dr. Eggert DR. FUES Cologne 1, DEICHMANNHAUS Dipl.-Phys. Grave

H.10.1965 Sch / üt.

Senger & Co ·, Cologne-Braunsfeld, Aachener Str. 624 «

Formwork for the production of reinforced concrete * ribbed ceilings.

The invention relates to the formation of a formwork body for the production of reinforced concrete ribbed ceilings

The formwork for the formation of reinforced concrete ribbed ceilings are often designed in the form of a formwork hood. Such formwork hood is provided, at least at the ends with a transverse head plate, so that the concrete can not penetrate the interior of the hood "Perner may have such ■ \ q shuttering / einem.mehr or less large distance transverse plates as well as the head plate serve to stiffen the hood-shaped formwork · The hood-shaped formwork body advantageously consists of a suitably curved one

Hardboard or the like. You can also see many in the Inside the shuttering hood stiffening strips or battens in the longitudinal and transverse directions in front of

The formwork body of the type mentioned are so far designed in such a way that the head plates in the interior of the shuttering hood are used, so that the hood-shaped plate on the top plate Limited scope. Since the formwork body is to be recovered in many lalls, this is one

• to the extent that the arrangement is unfavorable as the top plate when concreting the reinforced concrete ribbed ceilings, which often happens with vibration, more or more Less is pressed into the interior of the shuttering cover · This means that the concrete reaches under the Head sides slightly the hood · Pulling out the formwork can only partially destroy it of the formwork.

Many formwork bodies are still provided with transverse strips to stiffen the hood shape, with the Cross bars are arranged so that a handle opening Formed for touching and pulling out the formwork hood after completion of the reinforced concrete ribbed ceiling is · Up to now, the procedure has been such that the Push the slats with the head end against the transverse strips. This means that the lowest cross bar in the same Height of how the longitudinal battens is arranged »If the formwork hood is off with this training the hardened concrete is pulled out, the tension »·

force only through the transverse strips on the hood body, the longitudinal strips are not involved in this « This can lead to bending of the hood body when pulling out long hood bodies and thus lead to impairment of the hood shape, so that the formwork body only after cumbersome Reconstruction can be used for another formwork operation

Due to the inventive design of the shuttering hood, the aforementioned disadvantageous parts are eliminated. The formwork body according to the invention is characterized in that the head plates the shuttering hood are arranged so that each head plate is in front of the face of the hood plate is placed in front of the formwork. The head plate thus runs with the contour of the outer circumferential surface flush with the formwork hood. Such a training ensures that the risk of indentation the head plate is significantly reduced or eliminated by the concrete, because the head plate is attached the circumferential end face of the formwork body a firm contact and support. The hood-shaped one Sehalungskörper can be pulled smoothly out of the hardened concrete »

According to a further feature of the invention are the parallel to the head plate and a handle opening forming crossbars arranged so that the lowermost crossbar rests on the longitudinal slats. It

so the transverse strips "or, it becomes the transverse" ledge wall underpinned by the slats running longitudinally on the hood body · Such a training also leads to a significant relief for pulling the formwork body out of the hardened concrete »The tensile force exerted on the transverse strip wall is transferred to the longitudinal battens. When pulling out the formwork body, it is taken from the block because the bottom Tensile force acting on the crossbar is transferred to the longitudinal slats. This means that the tensile force is over the longitudinal slats effective over a considerable length on the hood body · The formwork body can thereby regain without significant impairment,

The invention is explained in more detail with reference to the representations given in the drawing «

Pig. 1 shows the design of the shuttering body according to the invention and its arrangement in a reinforced concrete ribbed ceiling.

Fig. 2 shows a section through the formwork body along the line II-II of Fig. 1,

lig. 3 shows a head end of the hood-shaped shell body in the diagram,

For the production of reinforced concrete rib ceilings 1 are hood-like formwork body 2, which is between the Double T-beams 3 of the reinforced concrete ribbed ceiling can be arranged. The hood-like formwork body 2 is completed at the front sides by head plates 4 so that the concrete on the front sides of the The hood body cannot penetrate the inside of the hood

The arrangement according to the invention is such that that the head plate 4 is placed in front of the hood-like body 2. So it runs the headstock with the contour of the outer circumferential surface of the Formwork hood 2 flush »At 5 the head plate 4 is placed in front of the front face of the hood-shaped one Plate 2 clearly recognizable · The head plate 4 is located on the circumferential face of the hood body 2 a fixed system, which prevents the top plate 4 from being pushed in by the concrete The formwork can be pulled out smoothly

The Sehalungshaube 2 is at the head ends at long Formwork bodies also at several points between the head ends by a formed from transverse strips Wall 6 stiffened · Such a transverse wall consists, for example, of several one above the other strips 7, 8 and 9 »with a suitable G-handle opening 10 is provided for gripping for pulling out the Sehalungskörpers. The arrangement is like this

made that the lowest cross bar 9 rests on the longitudinal slats 11 and 12 by touching the strip 9 in the handle opening 10 ″ when pulling out the formwork body from the surrounding concrete arises, with transferred to the longitudinal slats 11 and 12, which on the Hood bodies are attached · This ensures that the formwork body is en block and without substantial Impairment of the shape can be pulled out of the hardened concrete. The cross bars and the Longitudinal slats are fastened to the hood body in a suitable manner by nailing. The individual hail are indicated by crosses in the drawing.

Claims (1)

RA. 659 935 * 10/15/83 Expectations 1 Shuttering body for the production of reinforced concrete rib ceilings, consisting of a shuttering hood, preferably made of a curved hardboard, which is closed at the open ends by head plates and inside stiffening strips or longitudinal battens in longitudinal and transverse direction, characterized in that the top plates (4) of the shuttering hood (2) so are arranged that the head plate (4) is placed in front of the end face (5) of the shuttering hood (2) and with the contour of the outer peripheral surface of the Formwork hood (2) runs flush. 2 «Sehalungskörper for the production of reinforced concrete rib ceilings, consisting of a shuttering hood, preferably made of a curved hardboard that is attached to the open ends are closed by head plates and inside stiffening strips or hats in Has longitudinal and transverse direction, characterized in that the transverse to the hood and parallel to the Cross strips (7, 8, 9) which are located along the top of the top plate and form a handle opening (10) from the length of the hood body running longitudinal slats (11, 12) are underpinned, the lowermost transverse strip (9) on the longitudinal slats (11,12) rests.