AU2019407321A1

AU2019407321A1 - Method for producing a wall of a structure made of concrete, and a wall of a structure made of concrete

Info

Publication number: AU2019407321A1
Application number: AU2019407321A
Authority: AU
Inventors: Alexander Kuhn; Peter Weber
Original assignee: Ed Zueblin AG
Current assignee: Ed Zueblin AG
Priority date: 2018-12-17
Filing date: 2019-12-10
Publication date: 2021-06-24
Also published as: CN113348287A; EP3670775A1; EP3670775B1; WO2020126701A1

Abstract

A method for producing a wall (1) of a structure made of concrete provides that the wall (1) is produced by applying concrete in layers (4) lying above one another without lateral formwork, wherein the layers (4) extend over at least half the length (g) of the wall (1) from one longitudinal side (2) of the wall to the opposite longitudinal side (2) of the wall. At least one reinforcing bar (7, 8) which penetrates through at least some of the layers is introduced into the wall (1) after at least partial hardening of the layers (4). In a wall (1) of a structure made of concrete, with said wall being built up from layers (4) of concrete arranged above one another, there is provision that the wall (1) has extending therein at least one duct (5) which traverses a plurality of layers (4) and in which at least one reinforcing bar (7, 8) is arranged, wherein the duct (5) is filled with a casting compound (17) having a composition which differs from the composition of the concrete of the layers (4).

Description

METHOD FOR PRODUCING A WALL OF A STRUCTURE MADE OF CONCRETE, AND A WALL OF A STRUCTURE MADE OF CONCRETE

The invention relates to a method for producing a wall of a

structure made of concrete and a wall of a structure made of

concrete.

It is known to produce walls by applying concrete in layers

lying above one another. This production method is also known

LO as 3D printing. The concrete layers are successively produced

by pouring concrete onto the top layer of the section of the

wall that has already been produced using a print head moving

in the longitudinal direction over the wall. In this case, a

formwork is not first produced, as in conventional methods,

L5 into which the liquid concrete is poured for a certain wall

section, but the concrete is applied without lateral formwork

as a layer with a comparatively low height. Since the

individual layers of the concrete bulge outwards between

application and hardening due to the weight of the concrete, a

wavy structure is created on the outside of the wall.

In the case of conventionally produced walls, the

reinforcement is introduced, for example in the form of

reinforcing bars, reinforcement mats or the like, before the

concrete is introduced into the formwork. Then the formwork is

filled with concrete. In doing so, the reinforcements are

embedded in the concrete. In the case of a wall produced using

the 3D printing process, it must be possible for the print

head to move over the wall in order to apply the individual

layers. The vertical reinforcement must not hinder the

movement of the print head over the wall.

In order to be able to produce reinforcement in 3D-printed

walls, different methods are already known. From CN 106193368

A it is known to produce the outer wall sections in 3D

printing processes, then to introduce horizontal and vertical

reinforcements between the wall sections produced in 3D

printing and then to fill the space between the wall sections

with concrete. In order to be able to guide the print head

over the vertical reinforcement, it is also known to design

the print head with two feed openings which each apply

concrete to one side of the reinforcement. The design of the

print head is therefore comparatively complex, and the length

LO of the vertical reinforcement is limited by the construction

of the print head.

The invention is based on the object of specifying a method

for producing a wall of a structure made of concrete, with

L5 which the wall can be produced simply and economically.

Another object of the invention is to specify a wall that can

be produced simply and economically.

With regard to the method, this object is achieved by a method

having the features of claim 1. With regard to the wall, the

object is achieved by a wall having the features of claim 9.

There is provision that at least one reinforcement bar is

introduced into the wall, the reinforcement bar penetrating

through at least part of the layers. The part of the layers

into which the reinforcing bar is introduced is at least

partially hardened when the reinforcing bar is introduced. The

introduction of the reinforcing bar after the layers have at

least partially hardened simplifies the production of the wall

in the 3D printing process, since the print head can be moved

over the top layer of the wall unhindered by vertical

reinforcement. The layers can initially be applied at a height

corresponding to the length of the reinforcement bar. Because

the reinforcing bar is introduced when at least part of the layers has at least partially hardened, there is no rush to apply the layers, and a plurality of layers can be applied before the reinforcing bar is introduced. This allows a reinforcing bar of great length to be used. The at least one reinforcing bar can penetrate through a plurality of layers.

The layers extend over at least half the length of the wall

from one longitudinal side of the wall to the other. The

layers applied in the 3D printing process therefore do not

LO just form a formwork for conventionally poured concrete.

One or more reinforcing bars are preferably arranged in such a

way that at least one reinforcing bar penetrates through all

layers of the wall.

L5

The at least one reinforcing bar is advantageously introduced

at an angle of less than 30°, in particular less than 100,

relative to the vertical. Preferably, the at least one

reinforcing bar is introduced in the vertical direction within

the scope of the usual manufacturing tolerances. The

reinforcing bar is therefore a vertical reinforcement.

Provision can be made for the reinforcement bar to be provided

with pre-tensioning as pre-tensioned reinforcement.

Reinforcement is preferably provided without pre-tensioning.

The concrete is preferably applied in layers in a longitudinal

direction of the wall. The wall has at least one transverse

side extending transversely to the longitudinal direction. A

plurality of reinforcing bars are advantageously arranged at

different horizontal distances from one another in the wall.

The reinforcement bars are preferably arranged adjacent to the

transverse sides and adjacent to wall openings such as door

openings or window openings with a small distance from one

another. In areas that are at a large distance from the transverse sides or from wall openings, the vertical reinforcement can be omitted or the vertical reinforcing bars can be arranged at a large distance from one another. Accordingly, the reinforcement is arranged in the wall adapted to the loads that occur. The reinforcement is advantageously provided in the form of zone reinforcement. In this case, zone reinforcement is reinforcement that is only arranged locally or in areas in an otherwise unreinforced component.

LO The individual layers of the wall are comparatively thin. Preferably, each layer is produced with a thickness of 2 cm to 10 cm. The thickness of all layers of the wall is preferably the same within the scope of the manufacturing tolerances. The layers are in particular produced with a thickness of about 4 L5 cm to about 8 cm, preferably with a thickness of about 5 cm.

The at least one reinforcing bar is advantageously not introduced directly into the concrete, but rather subsequently into a duct penetrating through the layers of the wall. It is known to provide empty pipes in concrete walls, for example for the subsequent laying of cables or the like. However, such empty pipes are smooth on their inside and can therefore not absorb forces in their longitudinal direction. In order to enable a force transmission from the reinforcing bar into the layers of the wall, provision is made for areas lying above one another of layers of the wall lying above one another to be left blank when the concrete is applied in such a way that a duct penetrating through the layers is created. The duct is preferably closed on its circumference over at least part of its length. When a layer is applied, the concrete bulges outwards due to its weight on the outside of the wall. The outside of a wall that was produced by applying concrete in layers therefore has a wavy contour. The fact that the duct is also produced by leaving blank concrete within the layers means that the surface of the duct is also wavy. After at least one section of the wall has been produced, at least one reinforcing bar is introduced into the duct and the free cross section formed between the wall of the duct and the at least one reinforcing bar is filled with filling material. Due to the waviness of the surface of the duct, a good interlocking of the filling material with the layers of the wall is achieved. Even if the surface of the duct is slightly wavy, the direct contact of the filling material with the concrete

LO of the wall results in a good connection between the concrete

of the wall and the filling material. An area of the layers

can be left blank in an automated manner in a simple manner

when the layer is produced, so that the duct can be produced

in a simple manner and in an automated method when the wall is

L5 produced. The reinforcing bar advantageously has a surface

provided with elevations in the usual way, so that good

interlocking of the reinforcing bar with the filling material

is achieved. As a result, comparatively large forces can be

transmitted between the layers of the wall and the at least

one reinforcing bar.

A material different than the one used for the layers of the

wall is preferably used as the filling material.

If a plurality of reinforcing bars have to be arranged

distributed over the height of the wall, it is advantageously

provided to arrange the reinforcing bars with overlapping

joint. The length of the overlap depends on the strength of

the filling material. If a material with very high strength is

used for the filling material, the required overlapping length

and thus the required amount of reinforcing steel can be

reduced. Alternatively, the reinforcing bars can also be

connected to one another, in particular screwed to one

another.

To introduce the filling material, it is advantageously

provided that a connection is established from the duct to the

outside of the wall, and the filling material is pressed into

the duct via the connection. In order to avoid air inclusions

remaining in the duct, provision is preferably made for the

connection to be introduced comparatively far down in the wall

and for the filling material to be pressed into the duct from

below. The connection is preferably established in the area

below the tenth layer of the wall, in particular below the

LO fourth layer of the wall. A simple configuration is obtained

when a pipe leading from the duct to the outside of the wall

is inserted at least partially, in particular up to about

halfway into a layer to produce the connection in the

production of the wall, and then another layer is applied that

L5 covers the pipe at least partially. As a result, a connection

can be established into the duct in a simple manner, via which

the remaining free space in the duct can be filled with

filling material after the introduction of the at least one

reinforcing bar. Alternatively, the connection can also be

established in another way, for example by subsequently

introducing a connection, for example by drilling a duct, or

by leaving blank the connection when applying the concrete to

the corresponding layers. Advantageously, all of the

reinforcing bars to be arranged in the duct are arranged in

the duct before filling material is fed into the duct.

However, provision can also be made for the filling material

to be introduced into the duct in sections. For this purpose,

a plurality of connections are advantageously arranged

distributed over the length of the duct. Alternatively, it can

also be provided that the filling material is poured into the

duct from above.

In the case of a wall of a building made of concrete, which

wall is built up from layers arranged above one another, it is provided that the wall has extending therein at least one duct which traverses multiple layers and in which at least one reinforcing bar is arranged, wherein the duct is filled with filling material having a composition of which differs from that of the concrete of the layers. Such a wall can be produced in a simple manner in a 3D printing process, the duct being left blank in the production of the wall, then the reinforcement being introduced and only then the duct being filled with filling material. As a result, vertical LO reinforcement can easily be introduced even in a wall made of concrete using a 3D printing process.

The material of the filling material preferably has a higher strength than the concrete of the layers. This is particularly L5 advantageous when arranging a plurality of reinforcing bars one above the other, which overlap in an overlap area and thus form an overlapping joint. The required overlapping length depends, among other things, on the strength of the filling material. A high strength of the filling material reduces the required overlapping length. The filling material preferably has at least strength grade C60, in particular at least strength grade C75. The filling material is preferably a mortar. Due to the smaller maximum grain diameter of the mortar compared to concrete, the diameter of the duct can be made comparatively small. This reduces the amount of filling material needed to make the wall. At least two reinforcing bars are preferably arranged in the duct. The reinforcing bars preferably overlap in the height direction of the wall on a section of their length. However, a connection of the reinforcement bars, for example a screw connection, can also be advantageous.

The duct is preferably formed with a comparatively small diameter. The extension of the duct in the longitudinal direction of the wall is preferably less than twice the extension of the duct in the transverse direction of the wall.

The extension of the duct in the transverse direction is

limited by the smallest wall thickness to be produced. The

duct preferably has a distance of at least 5 cm from the long

sides of the wall.

An exemplary embodiment of the invention is explained below

with reference to the drawing.

L0

Fig. 1 shows a schematic illustration of a wall of a

structure,

Fig. 2 shows a schematic illustration of the wall from Fig. 1

L5 in longitudinal section, the layers being shown without

hatching and the position of a further reinforcing bar being

shown schematically,

Fig. 3 shows the detail III from Fig. 2 in an enlarged

illustration,

Fig. 4 shows the detail IV from Fig. 2 in an enlarged

illustration,

Fig. 5 shows in parts a schematic sectional illustration

through the duct.

Fig. 1 shows schematically a wall 1 of a structure. The wall 1

is produced from a plurality of layers 4 of concrete lying

above one another. To produce the wall 1, a schematically

illustrated concrete application device 12 is used, which is

connected to a concrete outlet opening 13 via a movement and

feed device 14. The concrete application device 12 is a so

called 3D printing device for concrete. The concrete outlet opening 13 is also referred to as a print head. The structural design can be any suitable design. In the prior art, for example, concrete application devices 12 in the form of portal arrangements or with a robot arm are known.

The wall 1 has two opposite longitudinal sides 2 which extend

in parallel to a longitudinal direction 9 of the wall 1. In

the exemplary embodiment, the wall 1 is flat. The wall 1 can,

however, also have a curved, angled shape or a shape deviating

LO in some other way from the straight shape. The longitudinal

direction 9 is the direction in which the concrete outlet

opening 13 is to be moved over the wall 1 in order to produce

a layer 4. The wall 1 has two transverse sides 3 which each

extend transversely, in particular perpendicular to the

L5 longitudinal direction 9 in a transverse direction 21.

The concrete outlet opening 13 can be moved by means of the

movement and feed device 14 in an application direction 10

and/or an oppositely directed application direction 11 for

applying a layer 4 over the top of the previously produced

wall section of the wall 1. The application directions 10 and

11 run in the longitudinal direction 9 of the wall 1.

Application of concrete in the transverse direction 21 can

also be provided.

The wall 1 has a height a, which is usually several meters.

The height a can, for example, be the room height of a

structure of which the wall 1 forms a part. The wall 1 has a

width b which is significantly less than the height a. The

width b can, for example, be in the range from 20 cm to 50 cm.

The wall 1 has a length g, which is measured in the

longitudinal direction 9. The wall 1 consists of a plurality

of layers 4 lying above one another. Each of the layers has a

thickness r which is, for example, 2 cm to 10 cm, in particular 4 cm to 8 cm. A thickness r of about 5 cm is particularly preferred. The wall 1 is produced without the use of a formwork on the long sides 2. The layers 4 extend over at least half, advantageously over at least 75% of the length g of the wall 1 over the entire width b of the wall 1 from one longitudinal side 2 to the opposite longitudinal side 2. The thickness r of all layers 4 is dimensioned in such a way that the concrete of the respective uppermost layer 4 does not run down the side of the layer 4 below. The individual layers,

LO however, bulge outwards due to the weight of the concrete, so

that the outside of the wall 1 is not a smooth surface, as

shown schematically in Fig. 1, but a wavy surface.

In the case of conventionally manufactured walls, formwork is

L5 produced first, and horizontal and vertical reinforcements,

for example, reinforcement mats or the like are arranged in

the formwork. Then, concrete is poured into the formwork. As

Fig. 1 shows, the concrete outlet opening 13 extends on the

upper side of the wall 1. A concrete outlet opening 13

designed in this way cannot easily move over a reinforcing bar

7 projecting from the top layer 4. In the case of the wall 1

shown in Fig. 1, provision is therefore made for a duct 5 to

be produced in the production of the layers 4. The duct 5 is

advantageously produced in that no concrete is applied in the

area in which the duct 5 is to be produced, so that a hole is

created in the respective layer 4. The areas left blank are

produced lying above one another, so that a continuous duct 5

is created inside the wall 1. In the exemplary embodiment, the

duct 5 is completely closed on its circumference. However, it

can also be advantageous for the duct 5 to be partially open

on its circumference.

It can be provided that the wall 1 is produced with a

plurality of ducts 5. At least one duct 5 is preferably arranged in the area of a transverse side 3. The duct 5 is at a distance k from the transverse side 3. Tensile loads are to be expected in particular on the transverse sides 3 of the wall 1. Reinforcing bars 7 are preferably only arranged in the areas in which tensile loads are to be expected. Otherwise, the wall 1 is preferably unreinforced. The wall 1 accordingly has zone reinforcement. As Fig. 1 shows, the reinforcing bars

7, 8 have ribs 19.

LO The duct 5 has a free internal diameter d which is

significantly larger than the diameter c of the reinforcing

bar 7. After the production of at least a section of the wall

4, the reinforcing bar 7 is introduced into the duct 5. The

concrete of the wall 1 is already at least partially hardened.

L5 In particular, the lower layers of the section of the wall 4

are already partially hardened. Accordingly, it is provided to

introduce the reinforcement after at least partial hardening

of the concrete and not, as in the production of a wall with

conventional methods, by means of formwork, to arrange the

reinforcement in the formwork before the concrete is fed.

In the exemplary embodiment, the diameter d of the duct 5 is

significantly smaller than the width b. The diameter d is

advantageously at most 80% of the width b, preferably less

than 70% of the width b. The duct 5 has a distance e to a

longitudinal side 2 and a distance f to the other longitudinal

side 2. The distances e and f can be the same. However,

distances e and f of different sizes can also be advantageous.

The distances e and f are advantageously at least 5 cm.

In the exemplary embodiment, the duct 5 is formed with a

circular diameter d within the scope of the manufacturing

tolerances. However, a different cross section of the duct 5

can also be advantageous. The extension of the duct 5 in the longitudinal direction 9 of the wall 1 is advantageously less than twice the extension of the duct 5 in the transverse direction 21 of the wall 1.

In the exemplary embodiment, the duct 5 runs vertically. A

slightly inclined arrangement of the duct 5 and thus also of

the reinforcement bar 7 can, however, be advantageous. The

reinforcing bar 7 is advantageously arranged at an angle of

less than 30%, in particular at an angle of less than 10%

LO relative to the vertical. The reinforcing bar 7 is preferably

arranged vertically within the scope of the manufacturing

tolerances.

Fig. 2 shows the wall 1 after a first reinforcing bar 7 has

L5 been installed in the duct 5. In the exemplary embodiment, the

reinforcement bar 7 has a length p which corresponds

approximately to the height a (Fig. 1) of the wall 1. As a

result, the reinforcing bar 7 does not project beyond the wall

1 on the upper side of the wall 1. On the upper side of the

wall 1, a ceiling plate 20 arranged on the upper side of the

wall 1 and, above it, a further wall 1 are illustrated

schematically in Fig. 2 with a dashed line. For the wall 1

arranged above the ceiling plate 20 is provided to arrange a

second reinforcement bar 8 in the duct 5. The two

reinforcement bars 7 and 8 form an overlapping joint. The

reinforcing bar 8 has a length q. The length q can be exactly

as large as the length p or larger or smaller. The reinforcing

bars 7 and 8 overlap with their ends over an overlapping

length m. The upper end of the reinforcing bar 7 and the lower

end of the reinforcing bar 8 overlap.

As Fig. 2 shows, the wall 1 has a connection 15 in the lower

area, which connection 15 connects the interior of the duct 5

to the outside of the wall 1. In the exemplary embodiment, the connection 15 joins a transverse side 3 of the wall 1. In the exemplary embodiment the connection 15 is formed in a pipe 16 which is embedded between a layer 4 and a layer 4' of the wall

1 immediately above it. Filling material 17 can be pressed

into the duct 5 via the connection 15, as Fig. 4 shows. As

Fig. 4 shows, the filling material 17 is fed through the pipe

16 and into the duct 5 via a feed nozzle 18 illustrated

schematically. The connection 15 can also be formed by a duct

drilled into the wall 1 or be formed by an area to which no

LO concrete is fed to at least one layer 4 when the layers 4 are

applied. Other possibilities for producing the duct 4 can also

be advantageous.

Fig. 3 shows the arrangement of the reinforcement bar 7 in the

L5 duct 5. As Fig. 3 shows, an intermediate space is formed

between the reinforcing bar 7 and the wall 6 of the duct 5,

which intermediate space is filled with the filling material

17. In the exemplary embodiment, the connection 16 is arranged

between the third layer 4 and the fourth layer 4'. The

connection 15 is preferably arranged below the tenth layer 4

of the wall 1, preferably below the fourth layer 4 of the wall

1. It can thereby be ensured that the section of the duct 5

projecting downward from the mouth opening of the connection

15 can also be completely filled by the filling material 17.

Because the filling material 17 is mainly filled into the duct

5 from below, it can be ensured in a simple manner that no air

bubbles are trapped in the duct 5.

As Fig. 5 shows, the layers 4 form a wavy course of the wall 6

of the duct 5. Each layer 4 bulges outward in the central

area. The smallest diameter d of the duct 5 is measured in the

middle area of a layer 4. A largest diameter i is measured in

the area in which two successive layers 4 lie next to one

another. The difference between the diameters i and d is advantageously at least 1 mm, preferably at least 2 mm.

Accordingly, the waviness of each wall is advantageously at

least 0.5 mm, in particular at least 1 mm. Due to the waviness

of the wall 6, a good interlocking of the filling material 17

with the wall 6 and thus a good transmission of the tensile

forces absorbed by the reinforcement bars 7 and 8 into the

layers 4 is made possible.

When producing the wall 1, a plurality of layers 4 are first

LO produced one lying above another. For this purpose, the

concrete outlet opening 13 (Fig. 1) moves in the application

direction 10 and/or application direction 11 over the floor or

an already produced layer 4 and thereby applies concrete. In

the area of the duct 5 no concrete is applied. In the same

L5 way, further layers 4 are applied over the first layer 4, the

concrete being left blank in the area of the duct 5 in such a

way that a continuous, preferably vertical duct is created. In

the exemplary embodiment, after the third layer 4 has been

applied, the pipe 16 is placed on the third layer 4 and

partially, in particular up to halfway, pressed into the third

layer 4. It can also be provided that less concrete is fed to

the layer 4 in the area in which the pipe 16 is to be

arranged. After the pipe 16 has been inserted, the layer 4' is

applied. As a result, the pipe 16 is surrounded by concrete

over its entire circumference. The pipe 16 is advantageously

inserted below the tenth layer 4, in particular below the

fourth layer 4. After creating at least a section of the wall

1, a reinforcement bar 7 is arranged in the duct 5. The height

of the section of the wall 1 preferably corresponds to at

least the length p of the reinforcing bar 7, so that the

reinforcing bar 7 does not project from the top layer 4 at the

top of the wall 1.

If the total height of the wall 1 has not yet been reached

after the reinforcement bar 7 has been installed, further

layers 4 are applied. After a further section of the wall 1

has been produced or after the wall 1 has been completed, one

or more further reinforcing bars 8 can be arranged in the duct

5. Due to the dimensions of the duct 5, the reinforcing bars

7, 8 tilt in the duct 5, so that the reinforcing bars 7, 8

cannot slip unintentionally in the duct 5. If all the

reinforcing bars 7, 8 are arranged with the desired overlap in

LO the duct 5, then filling material 17 is pressed via the pipe

16 into the duct 5 until the duct 15 is completely filled with

filling material 17. Alternatively, the lower reinforcing bar

7 is arranged in the duct and the duct 5 is filled with

filling material 17 up to a height which is less than the

L5 length p of the reinforcing bar 7 by the overlapping length m.

The ceiling plate 20 is then arranged and further layers 4 are

applied to create the wall 1 extending above the ceiling plate

20. If the height of the wall 1 corresponds to the length q of

the reinforcing bar 8 minus the overlapping length m minus the

thickness of the ceiling plate 20, the reinforcing bar 8 is

arranged in the duct 5 and the duct 5 is further filled with

filling material 17, in particular via a further connection

13. The further connection 13 is advantageously at most less

than ten layers 4, preferably less than four layers 4, above

the lower end of the reinforcing bar 8.

In the exemplary embodiment, the filling material 17 is

mortar. The filling material 17 advantageously has a higher

strength than the concrete 4. Particularly preferably the

filling material 17 is mortar with a strength grade of at

least C60, in particular at least C75. The smallest diameter d

of the duct 5 is preferably at least 50 mm. Advantageously,

the diameter d is aligned with the diameter c of the reinforcing bars 7, 8 (Fig. 1) and the maximum grain diameter of the filling material 17.

The smallest diameter d of the duct 5 is preferably at least

the sum of ten times the largest grain diameter of the filling

material 17 and twice the diameter of a reinforcing bar 7, 8.

This ensures that even in the overlapping area there is

sufficient installation space for the largest grain of the

filling material 17 to pass through.

LO Instead of being placed in a duct 5, the reinforcements 7, 8

can also be introduced into the wall 1 subsequently in other

ways. For example, the reinforcement bars can be pressed or

screwed into the only partially hardened concrete of the

layers 4.

L5

It can also be provided that the reinforcing bars 7, 8 are

formed as pre-tensioned reinforcements.

Advantageously, the reinforcing bars 7 and 8 are only

connected to the concrete of the wall 1 via the filling

material 17. Preferably, no stirrups for anchoring the

reinforcement bar 7, 8 and no reinforcement mats are provided,

since these elements would hinder the application of the

layers 4 by means of 3D printing processes or require a

complex, fork-shaped print head that can feed the concrete on

both sides of a reinforcement mat.

Claims

1. A method for producing a wall of a structure made of

concrete, the wall (1) being produced by applying concrete in

layers (4) lying above one another without lateral formwork,

wherein the layers (4) extend over at least half the length

(g) of the Wall (1) from one longitudinal side (2) of the wall

(1) to the opposite longitudinal side (2) of the wall (1),

characterized in that at least one reinforcing bar (7, 8)

which penetrates through at least part of the layers (4) is

introduced into the wall (1), wherein this part of the layers

(4) is at least partially hardened when the reinforcing bar

(7, 8) is introduced.

2. The method according to claim 1,

characterized in that the reinforcing bar (7, 8) is introduced

at an angle of less than 30°, in particular less than 100

relative to the vertical, preferably vertically.

3. The method according to claim 1 or 2,

characterized in that each layer (4) is produced with a

thickness (r) of 2 cm to 10 cm.

4. The method according to any one of claims 1 to 3,

characterized in that areas lying above one another of layers

(4) of the wall (1) lying above one another are left blank

when the concrete is applied in such a way that a duct (5)

penetrating through the layers (5) is created, and in that

after the production of at least a section of the wall (1) at

least one reinforcing bar (7, 8) is introduced into the duct

(5) and the free cross section formed between the wall (6) of

the duct (5) and the at least one reinforcing bar (7, 8) is

filled with filling material (17).

5. The method according to any one of claims 1 to 4,

characterized in that a different material is used as the

filling material (17) than for the production of the layers

(4) of the wall (1).

6. The method according to any one of claims 1 to 5,

characterized in that a connection (15) is established from

the duct (5) to the outside of the wall (1) and the filling

material (17) is pressed into the duct (5) via the connection

(15).

7. The method according to claim 6,

characterized in that the connection (15) is established in

the area below the tenth layer (4) of the wall (1).

8. The method according to claim 6 or 7,

characterized in that in order to establish the connection

(15) in the production of the wall (1), a pipe (16) leading

from the duct (5) to the outside of the wall (1) is partially

pressed into a layer (4) and then a another layer (4') is

applied which at least partially covers the pipe (16).

9. A wall of a structure made of concrete, the wall (1)

being constructed from layers (4) of concrete arranged above

one another,

characterized in that the wall (1) has extending therein at

least one duct (5) which traverses multiple layers (4) and in

which at least one reinforcing bar (7, 8) is arranged, the

duct (5) being filled with filling material (17), the

composition of which differs from the composition of the

concrete of the layers (4).

10. The wall according to claim 9,

characterized in that the material of the filling material

(17) has a higher strength than the concrete of the layers

(4).

11. The wall according to claim 10,

characterized in that the filling material (17) has at least

strength grade C60.

12. The wall according to any one of claims 9 to 11,

characterized in that the filling material (17) is mortar.

13. The wall according to any one of claims 9 to 12,

characterized in that at least two reinforcing bars (7, 8) are

arranged in the duct (5) which overlap in the height direction

of the wall (1) on a section (19) of their length (p, q).

14. The wall according to any one of claims 10 to 13,

characterized in that the extension of the duct (5) in the

longitudinal direction (9) of the wall (1) is less than twice

the extension of the duct (5) in the transverse direction (21)

of the wall (1).