DE1484979A1 - Reinforced concrete reinforcement for highly stressed structures - Google Patents

Description

DIPL-ING. HELLMUTH KOSEL DIPL-ING, HORST ROSE DIPL-ING. PETER KOSEL PATENT LAWYERS

3353 Bad Gandenheim, 31 JuÜ 1968

Braunschweiger Strasse 22 j 484979 Telephone: (05382) 2842

Telegram address: Siedpatent Bad Gandersheim

P H 84 979.7

Salzgitter Industriebau Gesellschaft m.b.H.

Salzgitter Industriebau Gesellschaft m.b.H. SalzgitterrDrütte '

Reinforced concrete reinforcement for heavily populated structures

The invention relates to reinforced concrete reinforcement for highly stressed structures, e.g. tunnel vaults, in which the reinforcing steel is arranged in layers and the prefabricated layers are shear-proof after the concrete has hardened are connected to each other.

Well-known reinforcements of this type suffer from this Lack that they are only in a single plane, either a straight plane or a curved plane, can be laid. A laying in a spatially curved Level, e.g. in a dome, is not possible. The reason for this is that at least one location in the known reinforcement is firmly connected to the other layers.

The invention is based on the object of arranging the layers of the reinforcement in relation to one another so that laying reinforcement is also possible in spatially curved planes.

According to the invention, this object is achieved by

^ That all of the layers during assembly to ⁰ for ^ dung and capable of mutually loosely arranged alone torsion. In this way ο every freedom of movement ο in all directions is guaranteed during assembly,

- * In a special embodiment of the invention

the reinforcement consists of five layers, namely two structural steel

'■ «• 10 documents (Art. 7 § l / te. ^ Kr. I tu: - ~„ · -s Anicrunasgss. V. 4,9,19JHt 216 1/1 3 Ko / q

lanklconto: Braunsdiweioische Staatsbank, branch · Bad Gand «rih« im, account no. 22.118.970 · PoitiditckkontoΓ Hannover «715

BAD ORIGfNAL

mats, two made of additional steel with welded wires existing layers and a layer consisting of stirrup baskets arranged between the welded wire mesh.

In another embodiment of the invention is the shear-proof connection between the layers of hardened concrete is made by prefabricated bent reinforcing steel. forms. Reinforcement bars that are composed in the manner of a basket or reinforcement bars that are bent in the manner of a strip can be used Find use.

The reinforcements according to the invention can all irregularities in the tunnel or in another construction site, resulting from the excavation of the tunnel or from the preliminary tunnel lining, be adjusted.

In the drawing, several embodiments of the reinforcement according to the invention are shown as examples.

Pig. 1 shows the basic shape of the reinforcement seen from the front.

Pig. 2 illustrates some forms of application of the shear-resistant connection between the layers.

Pig. 5 shows various embodiments of shear dowels attached to the reinforcement steel.

Pig. 4 shows further embodiments of the shear-proof connection in which the shear dowels are overlap individual layers.

The reinforcement consists of steel strips 1 with welded-on shear dowels 2. These steel strips are initially applied to the excavated inner surface of the tunnel as an outer ring reinforcement. Then the prefabricated reinforcement mesh the outer reinforcement 3 so placed on the steel strip that the shear dowel of the steel strip through the

The mesh of the mat protrudes through it.

to The welded-on shear dowels can be used to increase

^ the pull-out strength with an additional helical ° reinforcement 8 can be provided. The prefabricated stirrup baskets 4 are grooved over the row of dowels 2 of the - * strip steel 1, ao that the push dowels extend into the bracket baskets. On the fully assembled bag baskets 4

- 2 _

3 U84979

prefabricated reinforcement meshes 5 are placed. as At the end of the assembly, steel strips 6 are welded on Push bars 7 in the same way as the steel strips 1 applied to the reinforcement mats 5, so that the push dowels through the meshes of the mats 5 extend into the hanger baskets.

In Fig. 2, the bracket baskets are once as a rectangular bracket with mounting reinforcement 9 or as a rectangular or round spiral reinforcement 10 or 11 shown.

- 3 ■ · -

909820/0419

Claims (6)

Claims «/ ο / η η Q I 1 _ν iBreforced concrete reinforcement for highly stressed structures, e.g. tunnel vaults, in which the reinforcing steel is arranged in layers and the prefabricated layers are connected to one another in a shear-proof manner after the concrete has hardened, characterized in that all lay individually twistable and to one another during assembly are loosely arranged. 2. Reinforced concrete reinforcement naoh claim 1, characterized in that the reinforcement consists of five layers, Namlioh two welded wire mesh (3 »5) ι two made of additional steel (1.6) with welded-on dowels (2.7) and one between the welded wire mesh layer consisting of ironing baskets (4,10,11). 3. Reinforced concrete reinforcement according to claims 1 and 2, characterized in that the prefabricated additional steels (1.6) are designed as steel strips. 4. Reinforced concrete reinforcement naoh claims 1 to 3> characterized in that the opposing dowels (2,7) of the additional steels (1,6) overlap one another (Mg, 4). · 5. Reinforced concrete reinforcement according to claims 1 to 4, characterized in that the shear-resistant connection between the layers in hardened concrete by the prefabricated Bracket baskets (4) is formed. 6. Reinforced concrete reinforcement according to claims 1 to 5, characterized in that the bracket baskets (4) are made of helically bent reinforcing rods (10, 11). exist (Fig. 2). Patent Attorney Dfpl.-Ing. Hellmuth Kosel Diploma. Horst Röte Dlpl.-Ing. P «t« r Kosel 909820/0419 1 4 (SO /)