BE1024818B1 - FORM FOR THE MANUFACTURE OF A CONCRETE CONSTRUCTION, FORMING SYSTEM FOR THE CONSTRUCTION OF SUCH FORMING AND FOR METHOD FOR MANUFACTURING A CONCRETE CONSTRUCTION - Google Patents

Abstract

Formwork (1) for manufacturing a concrete structure (2,16), which is composed of one or more foldable sections (13) that is provided with one or more hollow sections (14) which have the shape in the unfolded and stretched state of the contours of parts of the concrete structure to be formed (2,16), wherein the formwork (1) can be placed on a bottom (9) in an initial state and wherein by pouring or pumping concrete mortar (15) into the hollow parts (14) of the formwork (1), the formwork is brought from the initial state to the tensioned state in order to form the relevant parts of the concrete (15) structure (2,16).

Description

(73) Holder (s):

DESIGN BY REDUCTION BVBA

2018, ANTWERP

Belgium (72) Inventor (s):

LIEBEN Georges 2018 ANTWERP Belgium

FIERLAFIJN Johan 2110 WIJNEGEM Belgium (54) FORMWORK FOR MANUFACTURING A CONCRETE CONSTRUCTION, FORMWORK SYSTEM FOR FORMING SUCH FORMWORK AND METHOD FOR MANUFACTURING A CONCRETE FOR CONSTRUCTION (57) Formwork (1) for the construction of a concrete structure (2.16 ), which is composed of one or more foldable parts (13) which are provided with one or more hollow parts (14) which, when unfolded and tensioned, have the shape of the contours of parts of the concrete structure to be formed (2,16 ), wherein the formwork (1) can be placed on a bottom (9) in an initial state and wherein by pouring or pumping concrete mortar (15) into the hollow sections (14) of the formwork (1), the formwork is the initial state is brought into the tensioned state in order to align the relevant parts of the concrete (15) construction (2,16)

2i

FIS 04 forms.

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024818 Filing number: BE2015 / 5700

Intellectual Property Office

International classification: E02D 5/38 E02D 27/01 E04G 13/00 Date of issue: 06/07/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 28/10/2015.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

DESIGN BY REDUCTION BVBA, Belgiëlei 137, 2018 ANTWERP Belgium;

represented by

VAN HUNSEL Lieven, Arenbergstraat 13,2000, ANTWERP;

a Belgian invention patent with a term of 20 years, subject to payment of the annual taxes as referred to in Article XI.48, § 1 of the Economic Law Code, for: FORMATION FOR THE PRODUCTION OF A CONCRETE CONSTRUCTION, FORMING SYSTEM FOR THE FORMATION OF SUCH FORMING AND METHOD FOR MANUFACTURING A CONCRETE CONSTRUCTION.

INVENTOR (S):

LIEBEN Georges, Belgiëlei 137, 2018, ANTWERP;

FIERLAFIJN Johan, Molendreef 35, 2110, WIJNEGEM;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 06/07/2018,

With special authorization:

BE2015 / 5700

Formwork for manufacturing a concrete structure, formwork system for forming such formwork and method for manufacturing a concrete structure.

The present invention first and foremost relates to a formwork for manufacturing a concrete construction.

The invention also relates to a method for manufacturing such a concrete construction.

Without limiting the invention thereto, the invention is of very practical use for the manufacture of concrete foundations, rainwater buffering basins, rainwater infiltration basins, basements, crawl spaces and so on.

However, the invention can equally well be applied in other domains in construction and in architecture, for example for the realization of any supporting structure, such as for instance vertical columns, walls, walls, floor plates, arches and vaults.

Of course, many types of formwork and methods of manufacturing concrete structures are already known, but they have a number of drawbacks.

With a traditional formwork, a mold is made from plates that must be anchored in a surrounding area

BE2015 / 5700 structure or to be supported by beams, braces and so on.

The so-called system formworks use standard formwork elements that are linked together and supported on site.

Many other techniques are known, but all require a certain anchoring or support of the formwork relative to an existing substrate or already built structure.

A first major drawback of these known formworks and methods for manufacturing a concrete construction consists in that the placing of the formwork and supporting it requires a lot of operations, thus a lot of working time, as well as an appropriate knowledge of the formworks.

This ailes is also detrimental to the cost of the works.

Another drawback of the aforementioned known formwork and methods is that they require a lot of material, a large part of which is often not reusable.

As a result, a large amount of waste remains after the concrete has hardened and large quantities of material such as wood are consumed.

This is not only detrimental to the environment, but again also to the cost of these techniques.

BE2015 / 5700

An additional drawback of these known formworks and methods is that the material used for the formwork and its support is very heavy, often requiring great physical effort from the formworks and / or the use of large machines, such as trucks , cranes, fork lifts, or all kinds of other lifting equipment for the transport and placement of the parts required for the formwork.

Yet another drawback of the known formwork and methods of manufacturing a concrete structure is that it is difficult to absorb irregularities in the ground or misalignments in the existing structure, resulting in very precise preparation and precision during the execution of the works is required, for example for the excavation of a construction pit, and / or the placement and support of the formwork involves time-consuming custom work of all kinds.

Therefore, the present invention aims to solve one or more of the foregoing drawbacks and possibly other drawbacks.

In particular, the object of the invention is to provide a formwork and a method with which a concrete construction can be manufactured in an extremely fast and efficient manner, whereby the number of steps during its manufacture is minimized.

Yet another object of the invention formwork for the manufacture of one consists in a concrete

BE2015 / 5700 construction that requires little professional knowledge for its use.

A further object of the invention is to obtain a formwork that is self-supporting and self-supporting and with which a concrete construction can be erected, such as for instance a water infiltration basin or cellar, in which no or hardly any additional elements have to be provided for the anchoring and support of the formwork in relation to a substrate or existing structure during the works.

Yet another object of the invention is to obtain a formwork which is very light and which can be easily placed on a substrate.

It is also an object of the invention to provide a formwork with which irregularities, slants and / or inaccuracies in the adjacent structures are automatically compensated.

To this end, the present invention relates to a formwork for manufacturing a construction which is composed of one or more flexible, foldable parts comprising in the form of a textile, membrane or fleece, wherein the formwork is foldable and is provided with one or more hollow and / or bag-shaped parts in which a filler can be applied and which, in the unfolded and clamped state, have the shape of the contours of parts of the structure to be formed and wherein the formwork can be placed on a bottom in an initial state, which is a folded state or a partial or not

BE2015 / 5700 is the fully unfolded state of the formwork, and wherein by pouring or pumping filler into the hollow and / or bag-shaped parts of the formwork, the formwork is gradually brought from the initial state into the tensioned state in order to reach the relevant parts of the construction.

A first major advantage of a formwork according to the invention is that it is mainly composed of flexible, foldable material, with the exception of any reinforcement such as bars or other materials that can be pre-assembled in the foldable formwork.

Thus, such formwork according to the invention is relatively light in weight compared to the weight of the known formworks and such formwork according to the invention can easily be transported in its entirety to a wert, whereby it can be installed on the wert without too much effort and depending on whether the application can be unfolded.

Another advantage of such formwork according to the invention is that it can simply be placed on a bottom in an initial state, whereby no or virtually no additional support or anchoring is required in the bottom or other surrounding structures, possibly with the exception of smaller aids such as pins, pegs, hooks or the like for keeping the formwork in a certain position on the bottom and / or keeping the flexible formwork in a fully unfolded or partly unfolded state.

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A formwork according to the invention thus forms a substantially self-standing and self-supporting whole.

This saves an enormous amount of time during the work, since no complicated supporting structures need to be erected, nor heavy materials have to be supplied.

Another advantage of a formwork according to the invention consists in that it is provided with hollow parts which, if appropriate, form bag-shaped parts and which, when unfolded and clamped, assume the contours of the concrete structure to be formed.

By a bag-shaped part is meant a hollow part with at least one open end and a closed end, so that when the concrete is poured or pumped along the open end in the bag-shaped part, the concrete mortar is contained in the bag-shaped part.

In other cases, the hollow sections may have a fully enclosed wall to be pierced to introduce concrete mortar or a hollow section may have a wall with one or more openings, the hollow section not forming a bag-shaped section in the sense that when applying concrete mortar in the hollow section, the concrete mortar would normally flow out, but in which the flow of concrete mortar can be prevented, for instance by applying one or more pressure installations, such as a pump or the like, to the relevant opening or openings.

BE2015 / 5700

In any case, it is a great advantage of the invention that the aforementioned hollow or bag-shaped parts form the contours of the construction to be manufactured in a stretched state, so that the desired shape can be obtained immediately.

Since the formwork is composed of flexible and foldable parts, this flexible formwork can be designed and manufactured in a fairly simple manner in advance, for example in a factory hall, for structures with a very diverse and rather complicated shape, whereby foldable and flexible parts can be custom-made. cut and joined together and so on.

Of course, all modern design and manufacturing means, such as custom drawing software, CAD-CAM Systems and so on, can be used for this.

It is the intention of a formwork according to the invention to be placed on a bottom in an initial state.

This initial state can be a folded, partially unfolded or fully unfolded state, whereby by pouring and / or pumping filler into the cavities or bag-shaped parts of the formwork, the formwork is further unfolded from the initial state and tensioned if necessary condition that takes the form of the concrete structure to be manufactured, as

BE2015 / 5700 as if a bouncy castle is blown up with the help of air.

It goes without saying that with such formwork according to the invention constructions can be erected in a very efficient and in a minimum of time manner, which would require an enormous amount of labor and material with the known means.

Another advantage of a formwork according to the invention is that its flexible nature makes it easy to absorb irregularities in a substrate and, due to an adapted formwork design, it is possible to ensure that certain parts of the formwork automatically point vertically regardless of a possible inclination of the substrate, at least within certain limits.

In a possible application, the formwork according to the invention is used for manufacturing a concrete construction, but constructions made of other materials are not excluded.

The filler can therefore consist purely of concrete mortar, but the filler can equally well consist of fillers such as sand, argex grains, air, PU foam, PS grains, water or a combination thereof.

Filling the formwork with filler can be done in one step or in several steps.

In a preferred embodiment of a formwork according to the invention one or

BE2015 / 5700 several hollow and / or bag-shaped parts of the formwork in unfolded and tensioned state, in the form of a vertical column of the construction to be formed.

Such hollow and / or bag-shaped part of the formwork, which is intended as a part to form a vertical column of a concrete construction, can, for instance, be completely or partly folded when the formwork is placed on a bottom, whereby by pumping concrete mortar into such a hay or bag-shaped part, the formwork gradually unfolds, erects and stretches, thus obtaining the shape of a vertical column.

Usually in this case the concrete mortar will be supplied at the bottom at the level of the above-mentioned bottom.

In other cases, concrete mortar can be introduced into such a hollow and / or bag-shaped section above the conscious floor on which the structure is to be erected, for example by pouring the concrete mortar through an opening from a truck or concrete mixer and gradually the column to be replenished from the bottom.

In this case, such a hollow and / or bag-shaped part of the formwork which is intended as a part to form a vertical column of a concrete structure in the initial condition is preferably largely or completely unfolded, for example by attaching it to a surrounding structure hanging or by other supporting means, whereby by pumping or turning the

BE2015 / 5700 concrete mortar the relevant part is further tensioned to form a vertical column.

It is clear that in both cases a formwork according to the invention has many advantages over the known formworks, since the installation thereof requires little time and no or only a limited number of additional means.

In other preferred embodiments of a formwork according to the invention, the formwork additionally or alternatively similarly comprises one or more hollow or bag-shaped parts which, when unfolded and tensioned, have the form of other elements of the concrete structure to be formed, such as for example:

- hollow or bag-shaped sections which form columns which are adjacent to each other to form a vertical wall of the construction;

one or more flexible, foldable parts in the form of a textile, membrane or fleece, which, in an unfolded state of the formwork, form a flat part of the formwork for manufacturing a concrete slab of the construction;

tubular hollow sections to form arcuate spans of the construction to be manufactured;

- hollow or bag-shaped parts of the formwork which, when unfolded and tensioned, are in the form of a base of the concrete structure, for example in the form of a base, a base plate or a beam.

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The frame is, of course, non-limiting, and flexible formworks according to the invention with parts that take on other shapes in the stretched state for manufacturing an element of a concrete construction can be used without departing from the scope of the invention.

The invention also relates to a formwork system for forming a formwork according to the invention as set out above with the intention of being able to manufacture a concrete construction according to a pattern with multiple recurring construction parts or with symmetrically placed construction parts.

More specifically, such a formwork system according to the invention comprises one or more types of flexible and foldable system parts, wherein each system part of a certain type of system parts always has the same shape according to a specific construction part to be realized and wherein different

system parts pattern of the linked. corresponding construction it too each other accomplish can turn into This way can be some kind standardization turn into

whereby very large structures can be realized with only a few types of system parts by coupling them together according to specific patterns.

In a preferred embodiment of a formwork system according to the invention, the concrete structure to be formed comprises a regular pattern of columns

BE2015 / 5700 which are interconnected by means of connecting parts and a aforementioned type of flexible and folding system part corresponds to a vertical section through such a column and one or more associated connecting parts.

Such an embodiment of a formwork system according to the invention is extremely suitable for realizing water infiltration basins, collection basins, rainwater buffering systems or basements and the like, as will be further illustrated.

The invention also relates to a method for manufacturing a construction consisting of:

to assemble a formwork containing one or more flexible, foldable parts in the form of a textile, membrane or fleece, the formwork being foldable and comprising one or more hollow and / or bag-shaped parts in which a filler can be applied and which, when unfolded and stretched, have the shape of the contours of parts of the structure to be formed;

placing the formwork on a bottom in an initial condition, which is a folded condition or a partly or partly unfolded or fully unfolded condition;

- the pouring or pumping of filler into the cavities or bag-shaped parts of the formwork, whereby the formwork is gradually brought from the initial state to the tensioned state in order to

BE2015 / 5700 concerning parts of the structure; and, - allowing the concrete to cure.

The advantages of this method speak for themselves and further details will be further elucidated with reference to the figures.

With the insight to better demonstrate the features of the invention, hereinafter, by way of example, without any limitation, some preferred embodiments of a formwork for the manufacture of a concrete structure, a formwork system for assembling such formwork, as well as a method of manufacturing of a concrete structure according to the invention, with reference to the accompanying figures, in which:

figure 1 shows in perspective a first possible embodiment of a formwork according to the invention for manufacturing a rainwater buffering system, leaving out the parts for casting a top plate; figure 2 represents a top view following the arrow F2 in figure 1;

Figures 3 and 4 illustrate in perspective how in a subsequent step a flat part can be applied to the formwork of Figures 1 and 2 for paving a top plate;

figure 5 schematically shows the construction of a rainwater buffering system in side view;

figure 6 shows in perspective an alternative embodiment of a formwork according to the

BE2015 / 5700 illustrates the invention for manufacturing a

regular pattern from columns those among themselves be connected; figures 7 and 8 in perspective one variant of the embodiment from figure 6, respectively in front of it störten and after the failure

from a top plate on top of the columns;

figure 9 shows in perspective another embodiment of a formwork according to the invention; figure 10 shows in perspective a variant of the embodiment of the formwork of figure 9;

figure 11 illustrates in perspective a possible method according to the invention for manufacturing a vertical column;

figures 12 to 14 schematically represent another method according to the invention for manufacturing a rainwater buffering basin;

Figure 15 perspective view of system portions of a formwork system according to the invention for manufacturing a rainwater buffering basin according to a square or rectangular pattern;

Figure 16 illustrates in perspective how multiple types of system portions of a type shown in Figure 15 can be linked together and to other types of system portions to form the rainwater buffering basin;

figures 17 and 18 similarly show another possible embodiment of a formwork system according to the invention;

BE2015 / 5700 figure 19 schematically and in perspective shows a type of system parts of yet another formwork system according to the invention;

Figure 20 is a perspective view of a section through a concrete structure illustrating a number of types of system parts of a more realistic embodiment of a formwork system according to the invention;

Figures 21 and 22 illustrate in perspective the use of such an embodiment of a formwork system according to Figure 20;

figures 23 schematically as in figure 19 represent a type of system parts of yet another formwork system according to the invention, this time for realizing a rainwater buffering basin according to a hexagonal pattern;

figures 24 to 28 illustrate in perspective a possible more realistic embodiment of such a formwork system according to the invention intended for realizing a concrete construction according to a hexagonal pattern;

figure 29 schematically and in perspective illustrates a formwork system according to the invention for realizing a rainwater buffering basin according to a triangular pattern;

figure 30 shows in perspective a formwork according to the invention with which an arched vault can be realized;

figures 31 and 32 are respectively a front view and a top view of the formwork of figure 30, according to arrows F31 and F32, respectively;

BE2015 / 5700 figure 33 shows in perspective a model of an application of the formwork from figures 30 to 32; figure 34 shows in perspective a model of a formwork according to the invention with which a rather linear structure can be realized;

Figure 35 is a perspective view of an application of the formwork of Figure 34;

figure 36 shows in perspective an upper part of a formwork according to the invention for manufacturing a vertical column; and, Figure 37 is a plan view according to arrow F37 of Figure 36.

The first embodiment of a formwork 1 according to the invention shown in Figures 1 to 4 is intended for manufacturing a rainwater buffering basin 2 or a similar construction such as a crawl space and so on.

The various elements from which such rainwater buffering basin 2 is typically built are shown schematically in Figure 5.

The rainwater buffer basin 2 hereby forms an underground construction, for instance under a large parking lot or the like, wherein a top plate 3 is supported by a supporting construction 4 which in this case consists of vertical concrete columns 5 which follow a regular pattern over the surface of the construction pit. 6, as well as a pair of opposite side walls 7, each of which delimits an edge of the construction pit 6.

BE2015 / 5700

The columns 5 rest on one or more feet or as in figure 5 on a bottom plate 8 which is arranged on the bottom 9 of the construction pit 6.

In addition, a reinforcement 10 is usually provided in the top plate 3 and the top plate 3 is cast on top of the columns 5 by means of a tensioning form or hanging formwork 11.

The importance of such rainwater buffering basins 2 is that rainwater comes to the fact that during rainy weather the frequent rainwater buffering basin 2, for example, ends up in a parking lot, for instance with the aid of drainage pipes, in order to temporarily store the rainwater there in the space 12 between the columns 5. to later drain it further to rivers and / or other drains, if these have sufficient capacity to drain the rainwater further.

According to the known techniques, during the construction of such rainwater buffering basin 2, excavation of a construction pit 6 is usually started, whereby before the actual excavation works begin, the side walls 7 are often manufactured with the aid of several ground bores which are made adjacent to each other and which are filled with a concrete mortar and possibly a reinforcement to form the side walls 7.

The base plate 8 is then poured onto the bottom 9 of the construction pit 6.

BE2015 / 5700

After the base plate 8 has hardened, formwork is installed at the location of the vertical columns 5 to be steered and the reinforcement of these columns 5 is further developed, which usually involves the use of many, often heavy materials and supports of all kinds.

Finally, after the columns 5 have been rigged and hardened, a formwork is applied which is adjacent to the columns 5 and the top plate 3 is set.

With the known techniques, this latter formwork usually has to be supported again by numerous beams and braces.

It is clear that such a known method requires an enormous amount of work and material and is accompanied by many successive separate steps, whereby a waiting period must always be respected for the hardened concrete to be cured.

With a formwork 1 according to the invention, a method according to the invention can be applied which is much simpler and faster and requires far fewer separate steps.

Characteristic of such formwork 1 according to the invention is that it is composed of one or more flexible, foldable parts 13 in the form of a textile, membrane or fleece, so that a foldable formwork 1 is obtained.

BE2015 / 5700

These foldable sections 13 may, for example, be woven from fiber materials of relatively high toughness such as glass fiber, jute, kevlar, polypropylene, nylons and the like, whether or not applied in a matrix of another flexible material, for example by melting.

It is not excluded, however, from the invention to manufacture the folding parts 13 without applying a weaving technique.

The folding formwork 1 is herein provided with one or more hollow and / or bag-shaped parts 14 in which concrete mortar 15 can be applied.

In an unfolded and stretched hollow and / or bag-shaped parts, contours of parts of the construction 16, i.e. in this case rainwater buffering basin 2.

condition have these

14 the form from the to to shape concrete from parts from it

More specifically, the formwork comprises a number of hollow sections 17 which, in an unfolded and tensioned state, have the shape of the contours of a vertical column 5 of the concrete structure 16 to be formed.

These hollow sections 17 are somewhat conical, the cross section of the vertical column 5 to be realized narrowing somewhat towards the top 18 thereof.

The hollow portions 17 at their top 18 communicate with a narrowed hi portion 19 which has a cylindrical surface, at least in the unfolded and stretched

BE2015 / 5700, and which, after the pouring of concrete mortar 15 and its curing, serves as anchoring element for anchoring each vertical column 5 with a top plate 3.

In order to form the side walls 7 of the concrete structure 16, the formwork 1 is further provided with a plurality of hollow sections 20 which, in an unfolded and tensioned state, have the shape of a vertical cylindrical or slightly conical column and wherein the respective hollow sections 20 abut together to form such vertical sidewall 7 of structure 16.

These hollow sections 20 have cylindrical or slightly conical contours in the unfolded and stretched state.

The collapsible formwork 1 further comprises a plurality of hollow sections 21 which, when unfolded and clamped, together form the base 22 of the concrete structure 16.

The hollow sections 17 are arranged in a regular pattern on the bottom 9 of the construction pit 6 to form vertical columns 5 in a square pattern and with a fixed mutual distance T between two successive columns 5.

In the example shown, the hollow sections 21 forming the base 22 each connect two successive hollow sections 17 on their underside 23.

BE2015 / 5700

The hollow sections 21 have a concave shape in the unfolded and tensioned state, such that a widened foot 24 is formed on each vertical column 5 on its underside 23.

In the shown example, a circular opening 25 is formed between the four vertical columns 5 which are in a square, each time through the connecting hollow parts 21.

At the location of the vertical columns 5 adjacent to the side walls 7, the hollow sections 21 for the base 22 connect the corresponding hollow sections 17 and 20.

The formwork 1 is furthermore provided with sections 26 which in each case connect the tops 18 of successive hollow sections 17 for the vertical columns 5 and which serve as connecting pieces 26 for supporting the top plate 3 to be formed.

These sections 26 may or may not be hollow and also serve as pullers to position and distribute the vertical shapes.

The formwork 1 according to the invention illustrated in Figures 1 and 2 has a rather complicated shape corresponding to the complicated shape of the contours of a supporting construction 4 of a rainwater buffering basin 2.

BE2015 / 5700

The different hollow parts 14 can all be mutually connected here, or separate compartments can be formed.

Depending on the case, the concrete construction 16 can thus be formed by filling the entire formwork 1 at once with concrete mortar 15 or by filling or pumping the separate compartments one by one with concrete mortar 15.

It is furthermore the case that the formwork 1 can be placed in an initial state on the bottom 9, which according to the invention generally does not correspond to what is shown in Figures 1 and 2.

After all, in the initial state, the formwork 1 can be fully folded or partially or completely unfolded, for example for the application of a reinforcement.

It is only by pouring or pumping concrete mortar 15 into the hollow and / or bag-shaped parts 14 of the formwork 1 that the formwork 1 is gradually brought into a tensioned state from the initial state, as shown in Figures 1 and 2. , in order to form the relevant parts of the concrete structure 16 after curing the concrete mortar 15, in particular in this case the supporting structure 4 of the rainwater buffering basin 2.

For erecting and, as it were, inflating the formwork 1 from an initial folded or partial

BE2015 / 5700 when folded, concrete mortar 15 can be pumped into the hollow sections 14 at the level of the bottom 9 of the construction pit 6, for example in openings provided in the hollow sections 21 for the base 22 or on the underside 13 of the hollow sections 17 for the vertical columns 5.

The conical shape of the hollow sections 17 provides a counter-pressure during its filling, so that a well-tensioned whole is obtained.

It is the intention to apply an additional part 27 of the formwork 1 on top of the realized supporting structure 4, more specifically on the parts 17 that form the vertical columns 5, the parts 20 that form the side walls, after the concrete has been cured. 7 and the portions 26 that form the connectors.

This additional part 27 of the formwork 1, like the other parts of the formwork 1, is also formed by one or more flexible, foldable parts 13 in the form of a textile, membrane or fleece.

In the shown embodiment of figures 1 to 4, this flexible, foldable part 27 is a separate part which, in an unfolded condition of the formwork 1, forms a flat part 27 of the formwork 1.

After this additional flat section 27 has been applied to the supporting structure 4, it extends between the sections 17 and 19 of the formwork 1 which form the columns 5 of the structure 5 and become, as it were, a

BE2015 / 5700 suspended or clamping formwork 11 realized for the realization of a top plate 3.

This is shown in Figures 3 and 4.

Reinforcement and possibly additional clamping means can optionally be applied before pouring a concrete mortar 15 onto the flat parts 27 to form the top plate 3 of the construction 4.

It is clear that with such collapsible formwork 1 according to the invention a very efficient method according to the invention can be applied, whereby only two sessions, during which concrete mortar 15 is poured, are required to realize a construction 4 such as a rainwater buffering basin 2 .

This results in a huge reduction of the required waiting times.

Installing the formwork 1 in the construction pit 6 can also be done much faster than with the usual formwork 1.

In figure 6 another embodiment formwork 1 according to the invention is shown, realizing a grid of vertical columns of square bonding with successive columns of bottom side 23 coupled.

from a in front of it 5 in a ) On their

The formwork 1 is again composed of flexible, foldable parts 13, all of which are hollow parts 14

BE2015 / 5700, in particular hollow sections 17 and 19 for forming the vertical columns 5 with a narrowed protrusion at the tips 18, as well as hollow sections 21 for the connection between successive columns 5, which are not concave but cylindrical in this case .

No hollow sections 20 are provided for forming side walls 7, nor hollow sections 26 for the supporting joints at the tops 18 of the columns 5.

The hollow sections 17, 19 and 20 can together form one large cavity or comprise several compartments.

With this formwork 1, a supporting structure 4 can be erected in a minimum of time to mold a top plate 3, essentially in the same manner as described above with respect to the previous embodiment.

After hardening of the concrete mortar 15, a box-shaped formwork can be applied to the columns 5 for paving the top plate 3, for example according to the known techniques or by applying a plane, which is flexible part 27, analogous to that illustrated in figures. 3 and 4 and which is additionally bordered with a border in order to avoid the leakage of concrete mortar 15.

Figure 7 shows a variant of the formwork 1 of figure 6, this time the formwork 1 is additionally provided with several flexible, foldable parts

BE2015 / 5700 in the form of a textile, membrane or fleece, which form an integral part of the formwork 1 and which, in an unfolded condition of the formwork 1, form a flat part 27 of the formwork 1 extending between the hollow parts 17 and 19 of the formwork 1 forming the columns 5 of the construction 4, more specifically at the tops of these columns 5.

It is hereby intended, in a first step of a method according to the invention, that concrete mortar 15 is pumped or poured into the hollow sections 17, 19 and 21 in order to form a supporting construction 4 consisting of a grid of mutually connected vertical columns 5. , during the filling, erecting and clamping of these hollow sections 17, 19 and 21 simultaneously clamping the flat sections 27 between the forming columns 5.

According to the invention it is not excluded that the whole formwork 1 can be fully or partially unfolded and more or less stretched with additional means, for example for applying reinforcement, before applying concrete mortar 15.

After the supporting structure 4 has hardened, by pouring concrete mortar 15 on the flat parts 27, a top plate 3 of the construction 16 can be formed, which is illustrated in figure 8, although with the top plate 3 slightly raised above the flat parts 27 of the formwork 1.

BE2015 / 5700

It is clear that with such an embodiment of a formwork 1 according to the invention the construction of, for instance, a rainwater buffering basin 2 or any cellar is still facilitated, since during the formation of the supporting construction a flat formwork is automatically and simultaneously unfolded for the top plate 3.

Figure 9 shows another embodiment of a formwork 1 according to the invention for manufacturing a vertical column 5.

This formwork 1 contains a bag-shaped, flexible part 17 which, in the unfolded and tensioned state, takes the shape of the column 5 and which communicates with a hay part 19 to form a narrowed protrusion on the top 18 of the column 5.

A special feature of this embodiment of a formwork 1 according to the invention is that it also contains three hollow, foldable and flexible parts 28 which are adjacent to each other and which, in the unfolded and tensioned state, are transverse to the vertical column 5, and thus horizontally stretch out.

The intention is to first fill these horizontally oriented hollow sections 28 with a filler such as sand mortar 29 or the like, so that a stabilizing wall or sand buffer 30 is realized and at the same time the hollow sections 17 and 19 for column 5 are unfolded and erected.

BE2015 / 5700

Sand grout 29 does not require any curing time, so that concrete work can be started immediately.

Such formwork 1 is for instance very practical for use in trench-shaped infiltration basins, which usually have to be provided with a sand buffer on both sides.

Figure 10 shows a variant in which the folding formwork 1 is provided with a number of vertically oriented hollow sections 17 and 19 which are arranged successively along the horizontally extending hollow sections 28 to form a concrete side wall 7 or a series of columns 5 which leans against the stabilizing wall or sand buffer 30.

Of course, the configurations of Figures 9 and 10 can be combined with those of Figures 6 to 8, whereby by using the aforementioned sand buffers 30, the top plate 3 and the supporting construction can be jammed simultaneously, since in this case the top plate 3 can immediately find support on the sand buffers 30 already filled with sand mortar 29 without the concrete supporting construction 4 having to harden for this purpose first.

Figure 11 shows a method according to the invention for manufacturing a concrete construction 16, more specifically a vertical column 5 using a formwork 1 according to the invention.

BE2015 / 5700

In this case, this formwork 1 is composed of one or more flexible, foldable parts 31 in the form of a textile, membrane or fleece, wherein the foldable formwork 1 contains a bag-shaped part 32 with a closed bottom 33 and in which concrete mortar 15 via an open end 34 can be applied.

In the unfolded and tensioned condition of the formwork 1, the bag-shaped part 32 is in the form of the concrete column 5 to be manufactured, more specifically of a vertical column 5 with pentagonal cross section and with widened base 24 and head 18, each in the form of a frustrum 35.

The formwork 1 is first brought into an initial state (shown in the left part of figure 11) by placing it on a bottom 9 and unfolding it and possibly hanging it or supporting it with additional means.

A reinforcement can be provided in the cavity of the bag-shaped portion 32.

Concrete grout 15 is subsequently poured into the bag-shaped part 32 via the open end 34 (which is shown in the middle of figure 11).

The bag-shaped part 32 is hereby gradually filled from the bottom 9 and is thus also clamped, so that it takes the required shape.

BE2015 / 5700

After the concrete mortar 15 has hardened, the vertical column 5 is realized, wherein the foldable parts 31 can still be removed from the concrete column 5, for example by cutting them away.

This situation is shown in the right part of figure 11.

According to the invention it is also not excluded that parts of the formwork 1 form part of the concrete construction 16 to be manufactured, such as with a lost formwork.

Figures 12 to 14 illustrate another method according to the invention for manufacturing an infiltration basin or rainwater buffering basin 2 or other applications using a formwork 1 according to the invention.

The formwork 1 in this case has a shape similar to that of figures 7 and 8 with the exception that one or more hollow sections 17 (or all hollow sections 17 as is the case in the figures) are provided on their top side with a open end 34 so that concrete mortar 15 can be poured along this open end into the hollow sections 17 and 21 of the formwork 1, for example from a truck or concrete mixer 36.

In a first step I of the method, the formwork 1 is folded open and placed in an initial state on a bottom 9 of a construction pit 6.

BE2015 / 5700

In a subsequent step II, the hollow sections 21 and 17 are filled with concrete mortar 15, whereby the conical shape of the hollow sections 20 causes an upward force F on the walls of the formwork 1 when the concrete mortar 15 rises. exerted.

This force F contributes to the unfolding and / or erection and raising of the collapsible formwork 1, as well as to clamping it into the desired shape according to the contours of the rainwater buffering basin to be formed.

At the same time, under the forces exerted by the concrete mortar 15, the flat parts 27 of the formwork 1 are clamped, on which the top plate 3 must later be cast.

The third step III of the method consists of a waiting period for the curing of the concrete 15 to form the supporting construction 4 of the rainwater buffering basin 2 with columns 5 and a base 22.

In the fourth step IV of the method, concrete mortar 15 is then poured onto the flat, flexible parts 27 of the formwork 1 to form the top plate 3, which rests on the columns 5 and which hardens during step V of the method.

Figures 15 and 16 illustrate a first embodiment of a formwork system 37 according to the invention.

BE2015 / 5700

The formwork system 37 is intended for assembling a formwork 1 according to the invention, in particular it is the intention to erect a concrete structure 16 which has a pattern with multiple recurring construction parts or with symmetrically placed construction parts.

For this purpose, the formwork system 37 comprises a first type of flexible and foldable system parts 38, each of which has the same shape according to a specific construction part to be realized.

In this case, such system section 38 consists of a flexible, folding section 40 which, when unfolded and tensioned, forms the contours of a vertical section through a central axis AA 'of a vertical column 5, for example in this case a section over an angle B of 90 °.

The collapsible portion 40, in the unfolded and tensioned state, has a radially flared portion 41 intended to form a portion of a vault 42 extending from the respective vertical column 5 to adjacent vertical columns 5.

Furthermore, the folding section 40 is provided with a hollow section 43 to form a section of a foot 24 on a vertical column 5, as well as a hollow section 44 to form a rib 45 extending from the foot 24 of the to be formed. vertical column 5 up to the top 46 of the vault 42 to be formed.

BE2015 / 5700

The first type of system parts 38 is herein also provided with a hi part 47 for creating a base 22 for a grid of vertical columns 5.

This hi section 47 is in the form of a tubular piece 48 which is intended to form a kind of beam or connecting section 49 extending between the feet 24 of two successive columns 5 of the grid to be realized.

The formwork system 37 includes a second type of system sections 39 which is similar to the first type of system sections 38, but the system sections 39 of the second type do not include a hay section 47.

The different system parts 38 and 39 can be coupled together according to the pattern of the construction 16 to be realized.

More specifically, four system sections 38 and / or 39 together form one hollow vertical column 5, depending on whether more or less connections are required with other columns 5, more system sections 38 are used to form the respective column 5.

After assembling the formwork 1, which can be done in advance or on the wert itself, the formwork 1 can be unfolded.

By filling the hollow sections 43, 44 and 47 of the formwork 1 with a filler such as concrete mortar or

BE2015 / 5700 other fillers such as sand, air, PU, argex spheres, water, polystyrene, or a combination thereof, a first supporting structure 4 can be realized with annular feet 24 and upright ribs 45, the feet 24 being interconnected by beams 49 .

Hereby, the remaining flexible parts 40 of the formwork 1 are brought into a clamped state which is suitable for pouring the cavities 50 in the vertical columns 5 and for forming the vaults 42 supported by the radially flaring parts 41 of the system sections 38 and 39.

In this way an extremely efficient formwork system 37 is obtained, with which tai of configurations can be realized very quickly.

Of course, many Variants on the foregoing are possible, with system sections comprising multiple tubular pieces 48 or enclosing a vertical section over a larger or smaller angle B of a column 5.

Figures 17 and 18 show one of a formwork system.

alternative embodiment 37 according to the invention

Hereby use is made of system parts 51 which is flexible parts 52.

made of composed of one type of foldable,

In an unfolded and system portion 51, the stretched state assumes such a shape according to one

BE2015 / 5700 vertical cutting edge CC 'halved hollow column 5 which is somewhat pointed with a wider base 24 and a narrower tip 18.

To this end, the system section 51 includes a first hi section 53 which is intended to become vertical

lined up, what happens by filling of the hollow formwork 1 with a filler like for example concrete mortar 15. At the top 18 from the column to be formed 5 is also one

narrowed hi section 19 provided for anchoring the top of the column 5 in a top plate 3, as was also the case in the embodiment of figure 4, for example.

A hay section 54 is further provided transversely to the foot 24 of this half column 5 and transversely to the cutting plane CC ', which is intended to be connected to a hay section 54 of an adjacent column 5 to be formed.

Thus, a base 22 is provided in the form of a connecting portion 55 connecting the feet 24 of two adjacent columns 5 to be formed.

A column 5 is composed of two system sections 51 which are joined together at their cutting edge CC '.

Multiple such columns 5 can be coupled to each other via the hollow portions 54 that form connecting portions 55.

BE2015 / 5700

After the concrete 15 has been poured into the respective hollow sections 53 and 54, a row 56 of successive columns 5, which are coupled to the feet 24, is thus obtained.

In figure 18, two such rows of columns 5 are placed parallel to each other, after which a flat flexible and foldable part 27 is arranged over the tops 18 of the columns 5 for paving a concrete top plate.

3.

In a variant according to the invention, such a flat part 27 for a top plate 3 can also form part of the system part 51 and more or fewer rows 56 of columns 5 can be realized, as well as all kinds of other configurations.

According to the invention, instead of assembling formwork 1 from several system parts 51, a uniform formwork 1 can of course also be manufactured in one piece without having to couple several system parts 51 together for this purpose.

In figure 19 another possible embodiment of a type of system parts 57 of a formwork system 37 according to the invention is outlined.

In this case, such system section 57 is composed of foldable and flexible sections 58 which also form a number of hollow sections 19, 59, as well as a bag-shaped section 60.

BE2015 / 5700

In the unfolded and tensioned state of such system section 57, the hollow section 59 forms a vertical column 5 which is somewhat conical with a pointed top 18, whereby to form a protrusion to anchor the column 5 to be formed on top 1! A narrowed hi section 19 is provided.

The bag-shaped part 60 in the unfolded and tensioned state forms a foot 24 with square circumference and with a pyramidal gradient towards the column 5.

The system portion 57 is further provided with a flat portion 27 which is disposed at the top 18 of the column 5 and which forms an integral part of the system portion 57.

The flat portion 27 of the system portion 57, when unfolded, has a Square perimeter 61 corresponding in dimensions to the perimeter 62 of the foot 24.

Thus, system portions 57 can be positioned at will on the four sides of the feet 24 and the corresponding four sides

of the flat part 27 are linked together until a bigger picture. This is in the figures 2 0 to 22 illustrated in front of a embodiment of a formwork system 37 That is similar to that of figure 19, but That Lake

has been worked out realistically.

Figure 20 is a vertical sectional view through a structure 16 formed with casing 1 which is

BE2015 / 5700 assembled on the basis of the aforementioned formwork system 37 according to the invention, a first type of system parts 57 corresponding to that of figure 19.

The formwork system 37 in the embodiment of Figs. 20 to 22 also includes other types of system sections 63 and 64 which are largely similar in shape to the type of system sections 57, but which may be used to form the edges 65 and corners 66 of the construction 16.

The flat part 27 of the system parts 61 and 62 is for this purpose partly vertically connected to the narrowed hay part 19 to form upright edges 67, so that, after assembling a formwork 1 by coupling the different system parts 57, 63 and

64, as shown, for example, in figure 21, on top of the columns 5 a bag-shaped or rather tub-shaped whole is obtained which can serve as formwork for forming a top plate 3.

The use of the formwork 1 assembled with the formwork systems 37 discussed here is completely analogous to what was discussed with respect to Figures 1 to 10, except that complicated formwork 1 may be formed, wert or not, based on of only a few types of system sections 57, 63 and 64.

In figure 21 it is further illustrated that a reinforcement 68 can be provided before concrete mortar 15 is poured onto the flat parts 27, while figure 22 shows the state after the top plate 3 has been turned, whereby

BE2015 / 5700 parts of the narrowed hollow parts 19 protrude from the top plate 3 in order to serve as anchoring point for any further construction elements that are built on top of the top plate 3.

Similarly, in Figures 23 to 28, yet another formwork system 37 according to the invention is shown, this time comprising system sections 69 of a type having a hay section 70 to form vertical columns 5, hollow sections 71 extending radially from the base 24 of a column 5 in the radial directions of a hexagon 72 to form connecting portions 73 for connecting multiple system portions 69 to their feet 24.

At the top 18 of a column 5, in the case of Figures 24 to 28, similar radially extending, hollow portions 74 are provided to form connecting portions 75 for joining multiple system portions 69 to their tops 18.

In the case of Figure 17, the top is provided with a hexagonal flat portion 27 corresponding to the dimensions of the base 24.

Thus, all kinds of formwork configurations 1 can be formed according to a hexagonal pattern, as illustrated, for example, in Figures 26 and 27.

Instead of bouncing a top plate 3 on the supporting structure 4 formed with the system parts 69 afterwards, in the example of figure 28

BE2015 / 5700 uses preformed hexagonal concrete tiles or slabs 76 fitted over the projections formed by the narrowed hollow sections 19 and supported on the connecting sections 75 to form a floor or the like.

Figure 29 shows yet another embodiment of a formwork system 37 according to the invention which is completely analogous to the cases discussed above, but which is based on system parts 77 with which triangular configurations can be assembled.

Figures 30 to 33 show yet another embodiment of a formwork 1 according to the invention, which comprises a plurality of hollow, flexible and foldable parts 78 which, when unfolded and tensioned, have the shape of an arc-shaped span 7 of the construction to be formed 16 .

The hollow sections 78 are tubular sections 78 with two open ends 80 and 81.

A plurality of hollow tubular sections 78 are juxtaposed and interconnected by a pair of elongated bag-shaped sections 82 and 83 connected to the open ends 80 and 81, respectively.

The bag-shaped parts 82 and 83 form the base 22 of the concrete structure 16 to be realized.

BE2015 / 5700

By pumping concrete mortar 15 into the bag-shaped sections 82 and 83, the entire formwork 1 is, as it were, inflated and thus a semi-cylindrical vault 84 is obtained after this concrete mortar has hardened.

For example, such vault 84 may be installed in a water trench 85, as illustrated in Figure 33, and may serve as a scaffold for an overhead structure or road or the like.

Figure 34 shows a formwork 1 according to the invention which consists of an elongated structure 86 which extends in a direction DD 'and which is formed by one or more irregular, bag-shaped parts 87.

As shown in Figure 35, such formwork 1 can be used to form a supporting structure 24 by filling the bag-shaped sections with concrete mortar 15.

The supporting structure 24 can be placed in a water channel 85 to support a road or the like, while the water 88 can flow between the irregular shapes of the concrete, bag-shaped parts 87.

Figures 36 and 37 are views of the open end 89 of a narrowed hay section 19 at the top 18 of a vertical column 5 to be formed.

In the narrowed open end 89, flaps 90 are provided which automatically close the open end 89 when

BE2015 / 5700 concrete mortar 15 applies pressure to the flaps 90 inside the hollow section 19.

In this way, a top plate 3 can be directly poured onto a supporting structure 24 without the concrete mortar 15 in the part of the formwork 1 of the supporting structure 24 already being fully cured, since concrete mortar 15 is prevented from this part of the formwork 1 can steam under the additional pressure of the top plate 3.

Finally, figures 38 to 40 further illustrate that in a formwork 1 according to the invention, which is composed of flexible and foldable parts 13, measures can easily be taken to absorb irregularities in a bottom 9 or for automatic vertical alignment of certain parts of the formwork 1.

The invention is by no means limited to the exemplary embodiments described and illustrated with reference to the figures, formwork system of a formwork 1 and a 37 according to the invention, but formworks 1 and a formwork systems 37 can be realized in many other ways without departing from the scope of the invention.

The invention is also not limited to the described examples of methods according to the invention for manufacturing a concrete construction 16, but others

2015/5700 methods can also be applied without departing from the scope of the invention.

BE2015 / 5700 outside

BE2015 / 5700 44

Claims (3)

Conclusions Formwork (1) for manufacturing a structure (2,16), characterized in that it comprises one or more flexible, foldable parts (13) in the form of a textile, membrane or fleece, wherein formwork (1) is foldable and is provided with one or more hollow and / or bag-shaped parts (14) in which a filler (15) can be applied and which, when unfolded and clamped, have the shape of the contours of parts of the structure to be formed (2,16 ) and wherein the formwork (1) can be placed on a bottom (9) in an initial state, which is a folded state or a partly or fully unfolded state, and wherein the filling or pumping of filler (15) in the hollow and / or bag-shaped parts (14) of the formwork, the formwork (1) is gradually brought from the initial state to the tensioned state in order to form the respective parts of the concrete structure (2,16). Formwork (1) according to claim 1, characterized in that one or more hollow and / or bag-shaped parts (17, 20, 50, 53, 59, 70) of the formwork (1) in the unfolded and tensioned state have the shape or have a vertical column (5) of the structure to be formed (2,16). Formwork (1) according to claim 2, characterized in that several are hollow and / or bag-shaped BE2015 / 5700 sections (20) of the formwork (1) in the unfolded and tensioned state have the form of a vertical column (5) of the concrete structure to be formed (2.16), the respective hollow and / or bag-shaped sections (20) abutting each other to form a vertical wall (7) of the structure (2,16). Formwork (1) according to claim 2 or 3, characterized in that the formwork contains one or more flexible, foldable parts (13) in the form of a textile, membrane or fleece and which, in an unfolded state of the formwork (1) form part (27) of the formwork (1) which extends between the parts (17,20) of the formwork (1) which form the columns (5) of the construction (2.16) and whereby by filling a filler ( 15) a top plate (3) of the structure (2,16) can be formed on the flat parts (27). Formwork (1) according to one or more of the preceding claims, characterized in that one or more hollow and / or bag-shaped parts (78) of the formwork (1) in the unfolded and tensioned state have the form of an arc-shaped span (79 ) of the structure to be formed (16.84). Formwork (1) according to one or more of the preceding claims, characterized in that one or more hollow and / or bag-shaped parts (21) of the formwork when unfolded and tensioned BE2015 / 5700 has or has the form of a base (22) of the construction to be formed (2,16). Formwork (1) according to claim 6, characterized in that one or more hollow and / or bag-shaped parts (21) of the formwork (1) in the unfolded and tensioned state have or have the shape of a base (24), a base plate (8 ) or a beam (49). Formwork system (37) for forming a formwork (1) according to one or more of the preceding claims for manufacturing a structure (2,16) which has a pattern with multiple recurring construction parts or with symmetrically placed construction parts, characterized in that the formwork system (37) one or more types of flexible and collapsible system sections (38,39,51, 57,63,64,69,77) wherein each system section (38,39,51,57,63,64,69,77) of a certain type of system parts (38,39,51,57,63,64,69, 77) always has the same shape according to a specific construction part to be realized and wherein different system parts (38,39,51,57,63,64,69, 77) can be linked together according to the pattern to be realized of the construction (2,16). Formwork system (37) according to claim 8, characterized in that the structure (2,16) to be formed has a regular pattern of columns (5) which are mutually connected by means of connecting parts (49,55) and wherein a said BE2015 / 5700 type flexible and foldable system section (38, 39, 51) corresponds to a vertical section through such a column (5) and one or more associated connecting sections (49, 55). Method of manufacturing a structure (2,5,16), characterized in that it consists of: - to assemble a formwork (1) containing one or more flexible, foldable parts (13) in the form of a textile, membrane or fleece, the foldable formwork (1) being provided with one or more hollow and / or bag-shaped sections (14) in which filler (15) can be applied and which, when unfolded and clamped, have the shape of the contours of sections of the structure to be formed (2,5,16); - placing the formwork (1) on a bottom (9) in an initial state, which is a folded state or a state, whether partially or completely unfolded; - pouring or pumping filler (15) into the cavities or bag-shaped parts (14) of the formwork (1), the formwork (1) being gradually brought from the initial state to the tensioned state in order to form the relevant parts of the construction (2,16); and, - allowing the filler (15) to harden. Method according to claim 10, characterized in that the formwork (1) unfolds and erects from the bottom (9) during compression or pumping of BE2015 / 5700 filler (15) in the hollow or bag-shaped parts (14) of the formwork (1). Method according to claim 10 or 11, characterized in that the formwork (1) is provided with one or more hollow and / or bag-shaped parts (17.20), whereby by pouring or pumping the filler (15) in these hollow and / or or bag-shaped sections (17,20) columns (5) of the concrete structure (2,16) are formed. Method according to claim 12, characterized in that the formwork (1) between the hollow and / or bag-shaped parts (17,20) forming columns (5) is provided with flat parts (27) formed by flexible parts (13) consisting of a textile, membrane or fleece and wherein after curing of the filler (15) in the hollow and / or bag-shaped parts (17.20) forming columns (5), in an additional step of the method on the flat parts (27 filler (17) is applied to form a top plate (3) supported by the columns (5). Method according to claim 10 or 11, characterized in that the collapsible formwork (1) is provided with one or more hollow and / or bag-shaped parts (78), whereby by filling or pumping the filler (15) in these hollow and / or bag-shaped portions (78) corresponding arcuate spans (79) of the structure (84) are formed. B E2015 / 5700 Method according to one or more of claims 10 to 14, characterized in that the structure to be formed (2,16) has a pattern with multiple recurring construction parts or with symmetrically placed construction parts and wherein the formwork (1) is on the construction site construction (2,16) is to be formed, at least partially assembled using system parts (38,39,51,57,63,64,69,77) of a formwork system (37) according to claim 8 or 9 and wherein different system parts (38,39,51,57,63,64,69,77) are linked together according to the pattern to be realized of the construction (2,16). Method according to one or more of claims 10 to 15, characterized in that during filling or pumping a filler is used or several fillers are used, such filler being one of the following or a combination thereof: - a concrete mortar; - sand; - argex granules; - sky ; - PU foam; - PS granules; - water. Method according to one or more of claims 10 to 16, characterized in that the filling of the formwork takes place in one step. BE2015 / 5700 Method according to one or more of claims 10 to 16, characterized in that the formwork is filled or in several steps. BE2015 / 5700 BE2015 / 5700