METHOD FOR FORMWORK PLANNING FOR CONCRETING A STRUCTURE

Description

[0001] This application claims priority from German patent application No. 10 2018 129 033.0, filed on November 19, 2018.

[0002] The invention relates to formwork used in the construction of a building by concreting. State of the art

[0003] When a structure is constructed by pouring concrete, a formwork is typically used as a mold for the fresh concrete. The structure is often not constructed "in one go," but rather in specific construction phases, also known as work cycles. Typically, the formwork is installed for one work cycle, filled with concrete, and removed after the concrete has set. While the concrete from one work cycle is setting, and / or afterward, the formwork for the next work cycle is installed.

[0004] To quickly produce formwork and reuse the material multiple times, formwork systems made of prefabricated standard elements are used. An example of such a formwork system is known from WO 2005 / 040 525 A1.

[0005] Typically, the work cycles and the formwork to be installed for each work cycle are planned based on a floor plan of the structure to be constructed.

[0006] The documentation "PPL 11.0 Basics" from Planitec discloses a method for converting a given floor plan into a formwork plan that automatically searches for and inserts formwork elements from a library.

[0007] (Chijoo Lee et al., "The Development of Automatic Module for Formwork Layout using the BIM", ICCEM / ICCPM Jeju, Korea (2009)) discloses a method to support formwork planning based on a building information model (BIM). Task and solution

[0008] The object of the present invention is to provide a method by which the planning of formwork starting from a given floor plan can be simplified and at the same time the quality of the result obtained can be improved.

[0009] This object is achieved according to the invention by a method according to the main claim. Further advantageous embodiments emerge from the dependent claims. Disclosure of the invention

[0010] Within the scope of the invention, a computer-implemented method for converting a given floor plan into a formwork plan was developed. This formwork plan is a plan for the assembly of formwork elements for at least one work cycle of the construction of a structure corresponding to the floor plan by concreting. After the conversion, a spatial arrangement of formwork elements is created that conforms to the formwork plan.

[0011] In the process, the specified floor plan is provided by a user. This can be done in any way, such as with the mouse, by touch input, by analyzing a photo or other image document, and / or by importing from a CAD application. Mixed forms are also possible. For example, the user can place a PDF document or a photo of a paper floor plan in the background of a display device such as a monitor or the display of a tablet computer and trace the floor plan from this. The floor plan contains specified cyclic joints, whereby these cyclic joints separate the construction sections of the structure to be constructed, which are to be concreted one after the other.

[0012] A catalogue is provided which assigns a spatial arrangement of formwork elements to a number of patterns for the courses of planned walls, with which this course can be incorporated into the structure to be constructed by concreting.

[0013] In areas of the given floor plan where no occurrences of patterns contained in the catalog have yet been found, occurrences of a pattern contained in the catalog are searched for. For each found occurrence of the pattern, the spatial arrangement of formwork elements assigned to the pattern in the catalog is added to the formwork plan.

[0014] Any area of the given floor plan that has already been identified as corresponding to a pattern contained in the catalog can be considered completed. This means that a formwork solution has already been found for this area of the floor plan and this area no longer needs to be searched for further patterns. The record of which areas of the floor plan have already been completed can be kept in any way. For example, the presence of a spatial arrangement of formwork elements in the formwork plan indicates that the corresponding area of the floor plan has already been completed. However, each processed area of the floor plan can also be marked as completed in a representation of this floor plan.

[0015] After all occurrences of the pattern have been processed, a check is made to determine whether the specified floor plan has been completely processed. If this is not the case, i.e., if the formwork plan is not yet complete, a check is made to determine whether the catalog contains additional patterns that have not yet been searched for in the specified floor plan. If this is the case, one of these additional patterns is used to branch back to the search in the part of the specified floor plan that has not yet been processed. The search, addition, and verification steps are thus iterated over to completely process the specified floor plan.

[0016] In response to the fact that the specified floor plan has not been fully processed and the catalog does not contain any further patterns that have not yet been searched for in the specified floor plan, a check is performed to determine whether at least one unprocessed area of the floor plan contains at least one cycle joint. If this is the case, this area is searched for patterns from the catalog while hiding the cycle joint. If a pattern is found during this search, at least one cycle joint in the planned floor plan is relocated and / or rotated so that it no longer interrupts the found pattern, and / or the user is prompted to relocate the cycle joint in this way.

[0017] It was recognized that this approach can significantly simplify formwork planning. In particular, it reduces the qualification requirements of the people performing the planning.

[0018] A specialist, given a given floor plan and familiar with the available standard elements of the formwork system, is usually able to translate each floor plan into at least one configuration of the standard elements and, if necessary, supplement these with formwork tailored to the structure. This enables them to construct the structure by pouring concrete from the floor plan. However, it has been shown that a formwork for a given work cycle with a given floor plan can be constructed using many different configurations of the standard elements. After pouring the concrete and removing the formwork, the end result is essentially the same, but some configurations are better than others with regard to the requirements of the construction process. For example, the possible configurations may differ in the following ways: how many formwork elements have to be moved during assembly, for example by crane, how many different formwork elements have to be kept on site, how long the assembly of the formwork takes in total, and / or how high the total cost of the formwork is.

[0019] These objectives can be quite contradictory. For example, a large inventory of formwork elements on site enables rapid assembly of many different configurations, at the cost of tying up capital and taking up space on the construction site.

[0020] The applicant has developed many years of expertise regarding the most appropriate spatial arrangement of formwork elements for formwork of specific wall configurations with regard to specific optimization goals. For example, for a given wall configuration, there is a first spatial arrangement that is quickest to assemble, a second spatial arrangement that requires the fewest number of different parts, and a third arrangement whose assembly requires the least amount of material movement. By retrieving the corresponding arrangement from the catalog and adding it to the formwork plan, this expertise is utilized for the at least partially automated creation of a formwork plan.

[0021] This at least partially automated creation can also be performed by people on-site at the construction site who may have the basic knowledge to find any suitable configuration of formwork elements, but lack the expertise to find the optimal configuration. For example, complications of any kind may require a last-minute modification of the planned floor plan, rendering the formwork plan invalid.

[0022] For example, the optimization objective underlying the original formwork plan can be replaced with a new one. For example, if the original planning was created under the premise of minimizing overall costs, a new situation may suddenly arise where the construction project is delayed due to weather conditions, for example, and a work cycle must be completed as quickly as possible, regardless of costs. Weather dependence is a factor that fundamentally limits planning reliability during construction. With the automated process described here, a short-term change of the optimization objective is possible at any time by exchanging the catalog used for one focused on the new optimization objective.

[0023] In a particularly advantageous embodiment, the catalog is thus selected from a plurality of catalogs, and these catalogs differ with regard to the optimization objectives with respect to which the spatial arrangements of formwork elements contained therein are optimized.

[0024] The described procedure is iterative, i.e., once all occurrences of a pattern have been processed, occurrences of the next pattern contained in the catalog are searched for. This procedure is particularly advantageous when there is an offset between spatial arrangements of formwork elements in the formwork plan. The catalog can, for example, begin with patterns and corresponding spatial arrangements of formwork elements that relate to specific fixed situations. These can then be followed in the catalog by patterns and corresponding spatial arrangements that can be used to fully or partially compensate for an offset between the spatial arrangements already planned.

[0025] At the end of the process, the specified floor plan is ideally fully processed, i.e., completely translated into a formwork plan. However, this is not necessary for the aforementioned beneficial effects. Simplification and quality improvement with regard to the optimization goals pursued according to the catalog also occur when only part of the floor plan can be automatically converted into a formwork plan and, for example, custom formwork is required for a special structure that cannot be realized with prefabricated formwork elements.

[0026] Advantageously, the pattern contained in the catalog is rotated and / or scaled during the search in the given floor plan. In response to occurrences of the rotated and / or scaled pattern being found in the given floor plan, the spatial arrangement of formwork elements added to the formwork plan is then rotated and / or scaled accordingly. For most of these spatial arrangements, the qualitative behavior with respect to the respective optimization goals does not change. Thus, the catalog does not need to be bloated by numerous rotated and / or scaled copies of essentially identical patterns or spatial arrangements with the same effect.

[0027] Whether, for example, a left corner and a right corner of a structure are technically equivalent in this way and can thus be represented in the catalog by a single generic corner may depend, for example, on a modular system used for the formwork. This modular system may also specify, for example, the extent to which the spatial arrangements of formwork elements are physically rotatable and / or scalable.

[0028] It is advantageous for the catalog to include at least directional changes and / or branching walls as patterns. These elements can cover most common floor plans. Straight walls can also be included in the catalog as an option. However, they can also be added, for example, in a later phase of the formwork plan between the spatial arrangements of formwork elements already provided there. This process is also referred to as closing gaps (GAP).

[0029] In a particularly advantageous embodiment, the catalog includes at least rectangular or other angled wall changes of direction, wall intersections, T-shaped wall branches, and / or curved walls with a constant radius of curvature as samples. Especially with these elements, it makes a particularly significant difference with regard to typical optimization goals whether they are realized with the best or worst of the generally suitable spatial arrangements of formwork elements. To the extent that curved walls do not appear in the catalog, they can also be subsequently added to the formwork plan, for example, as part of the aforementioned tightening or gap closing.

[0030] In another particularly advantageous embodiment, changes in direction and / or branching walls are first searched for in the floor plan. Only then are straight walls searched for. This ensures that those elements of the floor plan whose implementation is most susceptible to errors without the expertise contained in the catalog are processed first. In particular, this counteracts the tendency for processing a straight wall in the floor plan to impair the visibility of a change in direction and / or branching that has not yet been processed.

[0031] The specified floor plan contains predefined interval joints. These interval joints separate the sections of the structure to be concreted one after the other and can be placed in the floor plan by the user, for example, using the mouse or touch input. The interval joints can be motivated, for example, by static reasons such that certain structures important for the structure's statics should not be interrupted by an interval joint. However, the interval joints can also be motivated, for example, by work schedules, such as the maximum formwork area that can be processed in a certain time or the amount of concrete available per work cycle, or even by aesthetic aspects.

[0032] In particular, the amount of concrete available per work cycle is often a strict constraint, and there is no practical option to procure the required additional quantity at short notice. If a work cycle is planned in such a way that the available concrete quantity is insufficient, the work cycle cannot be completed "in one fell swoop" because the formwork cannot be completely filled with concrete. However, if the missing concrete is added later, the concrete added earlier will already have partially or completely set. This creates an interface in the component between areas where the concrete has progressed at different stages of setting. Such interfaces must be avoided, as they can lead to structural weakening of the component.

[0033] In order to automatically counteract such planning errors, in a further particularly advantageous embodiment, the amount of concrete and / or wall length required for implementation is calculated from the floor plan for at least one work cycle and compared with a predefined threshold. In response to the predefined threshold being exceeded, a warning is issued to the user and / or the user is given a suggestion for relocating at least one cycle joint. This suggestion is designed in such a way that, if the user accepts it, the predefined threshold is no longer exceeded. The wall length is a further boundary condition in that walls that are too long tend to crack due to the shrinkage of the concrete during setting, and measures to limit crack width are necessary.

[0034] As a result of the division into work cycles, separate formwork plans can be created for each work cycle. This takes into account the requirement that the walls planned within a work cycle should not extend across a cycle joint.

[0035] In response to the fact that the given floor plan has not been fully processed and the catalog does not contain any additional patterns that have not yet been searched for in the given floor plan, a check is made to see whether at least one unprocessed area of the floor plan contains at least one cycle joint. If this is the case, this area is searched for patterns from the catalog while hiding the cycle joint. This means that the search is performed as if the cycle joint did not exist.

[0036] If a pattern is found during this search, it means that the user has placed the cyclic joint in an unfavorable manner, in the sense that it disrupts the pattern. The requirement to end a work cycle in the middle of the pattern and continue work there later conflicts with the requirement to form a structure corresponding to the pattern according to the spatial arrangement of formwork elements specified in the catalog for this pattern. The cyclic joint will most likely run right through a formwork element.

[0037] Therefore, in such a case, at least one timing joint in the planned floor plan is relocated and / or rotated so that it no longer interrupts the identified pattern, and / or a prompt is issued to the user to relocate the timing joint in this way. Typically, the user did not intentionally place the timing joint in such a way that it interrupts one of the patterns in the catalog; rather, this happened unintentionally because the user cannot remember all of these patterns.

[0038] As previously explained, the beneficial effects of the method are already apparent when a formwork plan can be automatically created for only a portion of the given floor plan. However, the effects become more pronounced the larger this portion is in relation to the entire floor plan.

[0039] Furthermore, the effectiveness of the process is not diminished by the fact that the formwork plan created within the framework of the process may be subsequently completed by the described tightening or closing of gaps or that accessories and / or connecting elements may be installed in further subsequent steps.

[0040] The catalogs used in the process can, for example, be stored on a mobile device, such as a tablet, on the construction site. Alternatively, the specified floor plan can be transmitted to a server, and the floor plan can be processed on this server.

[0041] In another particularly advantageous embodiment, the formwork plan is converted into an order list for formwork elements by comparing it with a list of formwork elements that can be ordered. This simplifies the procurement of the materials required for the formwork according to the formwork plan and, in particular, prevents transcription errors. The order list can, in particular, be a maximum list that specifies the maximum number of components required on the construction site at the same time.

[0042] There doesn't always have to be a 1:1 match between the formwork elements specified in the formwork plan and the formwork elements ordered. Another particularly advantageous feature checks whether there is an alternative formwork element that fulfills the same function for two or more formwork elements in the order list. If this is the case, the alternative formwork element replaces the previously specified two or more formwork elements.

[0043] As previously described, the formwork plan is created iteratively by successively searching for the occurrences of various patterns from the catalog in the given floor plan and by adding a spatial arrangement of formwork elements according to the catalog to the formwork plan. One and the same formwork element can occur in multiple spatial arrangements, so that, for example, if several arrangements are placed next to each other, each containing a 3 m long straight formwork element, the final formwork plan will contain two identical 3 m long straight formwork elements. If a 6 m long straight formwork element is available, it is advantageous to use it instead of the 3 m long formwork elements. This will require less material movement during assembly, and fewer connections between formwork elements need to be made and later removed.As a result, working time is saved.

[0044] The invention also relates to a method for constructing a structure. In this method, a formwork plan created using the method described above is provided. A spatial arrangement of formwork elements conforming to the formwork plan is created. A cavity defined by this spatial arrangement is filled with concrete. Depending on the optimization objective underlying the creation of the formwork plan, this method allows the structure to be constructed, for example, more quickly, more cost-effectively, and / or with less material movement. Special description section

[0045] The subject matter of the invention is explained below with reference to figures, without limiting the subject matter of the invention. It is shown: Figure 1 : Embodiment of the method 100; Figure 2: Example of processing a floor plan 1 with favourably placed clock joints 12; Figure 3 : Example processing of a floor plan 1 with unfavourably placed clock joints 12; Figure 4 : Embodiment of the method 300.

[0046] Figure 1shows an embodiment of the method 100. In step 105, the specified floor plan 1 is provided by the user, here including one or more cycle joints 12. In step 106, the amount of concrete and / or wall length required to realize each work cycle is calculated, and this required amount of concrete and / or wall length is compared with a specified threshold value in step 107. If the threshold value is exceeded (truth value 1), a warning is issued to the user in step 108, and / or a suggestion for relocating at least one cycle joint 12 is made to the user in step 109 such that when this suggestion is implemented, the specified threshold value is no longer exceeded.

[0047] In step 110, catalog 3 is provided, which assigns a spatial arrangement 31b-31b of formwork elements to patterns 31a-33a for the courses of planned walls 11. According to block 111, this catalog 3 can, for example, be selected from a plurality of catalogs 3a-3c, depending on the optimization goal pursued when creating formwork plan 2.

[0048] In step 120, occurrences of patterns 31a-33a from catalog 3 are searched in floor plan 1. These patterns can be rotated and / or scaled according to block 121. Alternatively, or in combination, changes in direction and / or branching of walls can be searched for first according to block 122, before straight walls are subsequently searched for according to block 123. As previously described, straight walls can also be added subsequently, for example, as part of closing gaps or closing gaps.

[0049] In step 130, for each occurrence of a pattern 31a-33a, the corresponding spatial arrangement 31b-33b of formwork elements according to Catalog 3 is added to formwork plan 2. In doing so, the spatial arrangement 31b-33b is rotated and / or scaled, if necessary, in the same way as was done with pattern 31a-33a. The occurrence of the pattern can optionally be marked as processed in a representation of floor plan 1 in step 140. As previously described, however, this is not mandatory, because the fact that formwork elements are planned at a specific location in formwork plan 2 already indicates that a corresponding part of floor plan 1 has been processed.

[0050] In step 150, a check is made to determine whether the specified floor plan 1 has been completely processed. If this is the case (truth value 1), the formwork plan 2 is converted into an order list 6 for formwork elements in step 240 by comparing it with a list 5 of orderable formwork elements. As previously described, this can, in particular, be a maximum list.

[0051] If the given floor plan 1 has not been completely processed (truth value 0), then in step 160 it is first checked whether the catalog 3 contains further patterns 31a-33a that have not yet been searched for in the given floor plan 1. If this is the case (truth value 1), then the system branches back to search 120 using one of these further patterns 31a-33a.

[0052] If, however, there are no more patterns 31a-33a that have not yet been searched for, then in step 180, a check is made to determine whether a timing joint 12 divides an unprocessed area 1a of floor plan 1. If this is the case (truth value 1), then in step 190, area 1a is examined for patterns 31a-33a while hiding timing joint 12. In step 195, a check is made to determine whether a pattern 31a-33a has been found. If one has been found (truth value 1), the poorly placed timing joint 12 was responsible for the pattern 31a-33a not being recognized. In step 200a, the cyclic joint 12 can then be automatically offset and / or rotated such that it no longer interrupts the identified pattern 31a-33a, i.e., the wall profile can be produced "from a single mold" according to this pattern 31a-33a. Alternatively, or in combination with this, the user can be prompted to make such a change to the cyclic joint in step 200b.You can then start again from step 110 with the creation of formwork plan 2.

[0053] Figure 2 shows a simple example floor plan 1 with planned walls 11. The floor plan 1 is divided into three work cycles A, B and C by two cycle joints 12. This means that separate formwork plans 2 are required for each of the three work cycles A, B and C. The walls planned within each work cycle A, B and C end at the cycle joints 12 and 13, respectively, which limit this work cycle.

[0054] Catalog 3 used in this simple example includes three patterns for the courses of planned walls 11, namely right-angled changes of direction 31a of walls 11, T-shaped branches 32a of walls 11 and straight sections 33a of walls 11.

[0055] When converting floor plan 1 into a formwork plan 2 for each work cycle A, B, and C, the occurrences of right-angled changes of direction 31a in floor plan 1 are first searched for. In the first work cycle A and the third work cycle C, there are two such occurrences each, and none in the second work cycle. The spatial arrangements 31b of formwork elements assigned to the right-angled changes of direction 31a according to Catalog 3 are added to the respective formwork plans 2 for work cycles A, B, and C. The right-angled changes of direction 31a have thus been processed, as indicated by their dashed lines in floor plan 1.

[0056] Subsequently, the occurrences of T-shaped branches 32a are searched for in floor plan 1. Here, there are only two occurrences in the second work cycle B; none in the first work cycle A and none in the third work cycle C. The spatial arrangements 32b of formwork elements assigned to the T-shaped branches 32a according to Catalog 3 are added to the respective formwork plans 2 for work cycles A, B, and C. The T-shaped branches 32a are thus processed, again indicated by dashed lines in floor plan 1.

[0057] Finally, the occurrences of straight wall sections 33a are searched for in floor plan 1. Here, there are three occurrences in the first work cycle A, four in the second work cycle B, and three again in the third work cycle C. The spatial arrangements 33b of formwork elements assigned to the straight wall sections 33a according to catalog 3 are added to the respective formwork plans 2 for work cycles A, B, and C. The straight wall sections 33a are thus processed, again indicated by dashed lines in floor plan 1.

[0058] In this simple example, floor plan 1 has been completely processed and converted into formwork plans 2 for the individual work cycles A, B and C.

[0059] In the Figure 2In the example shown, catalog 3 contains only one example each of the right-angled change of direction 31a, the T-shaped branch 32a, and the straight wall section 33a. To search for occurrences in floor plan 1, these elements are appropriately scaled and / or rotated.

[0060] Figure 3 shows another simple example of a floor plan 1, which is divided into two work cycles A and B by a cyclic joint 12. In this example, however, the manual placement of the cyclic joint 12 is unfavorably chosen, since in the upper left corner and in the lower right corner of the floor plan, the planned wall 11 ends at the cyclic joint 12 in a slope, which does not appear in Catalog 3 as pattern 31a-33a. Accordingly, after the recognition of the Figure 3drawn right-angled changes of direction 31a and the straight wall sections 33a, there are still areas 1a of the floor plan 1 that have not yet been processed. One embodiment of the method 100 provides for the offset and / or rotation of the cyclic joint 12 and / or for prompting the user to make such a change. If the cyclic joint 12 is changed, for example, to the cyclic joint 12', analogously to Figure 2 The entire floor plan 1 can be worked through using the same catalogue 3 of patterns 31a-33a.

[0061] Figure 4 shows an embodiment of the method 300 for producing a building. In step 310, according to the method 100, at least one formwork plan 2 is created from the planned floor plan 1. In step 320, a spatial arrangement of formwork elements conforming to this formwork plan 2 is created. In step 330, a cavity defined by this spatial arrangement is filled with concrete. List of reference symbols

[0062] 1Planned floor plan 1Not yet completed part of the floor plan 1 11Planned wall course in floor plan 1 12Cycle joint in floor plan 11 2Formwork plan 3Catalogue with samples 31a-33a and spatial arrangements 31b-33b 3a-3cCatalogues with different optimization goals 31a-33aPatterns for courses of planned walls 11 31b-33Spatial arrangements of formwork elements 5List of orderable formwork elements 6Order list 100Procedure for formwork planning 105Providing the floor plan 1 106Calculating the concrete quantity per work cycle 107Testing,whether concrete quantity exceeds threshold 108Issuing a warning to the user 109Providing a suggestion to the user 110Providing catalog 3 111Selection of catalog 3 from several catalogs 3a-3c 120Searching for occurrences of a pattern 31a-33a in floor plan 1 121Rotating and / or scaling the pattern 31a-33a 122Searching for changes in direction and branches 123Searching for straight walls 130Adding the spatial arrangement 31b-33b according to pattern 31a-33a 131Rotating and / or scaling the arrangement 31b-33b 140Marking the pattern 31a-33a as processed 150Checking whether floor plan 1 has been completely processed 160Checking whether there are any patterns not yet searched for 31a-33a present 170Continue the search 120 with new pattern 180Check whether cycle joint 12 is in unprocessed area 1a 190Search for pattern 31a-33a while hiding cycle joint 12 195Check,whether patterns 31a-33a are found 200aMoving and / or rotating the cycle joint 12 200bRequesting the user to change the cycle joint 12 240Converting the formwork plan 2 into an order list 6 300Procedure for producing a structure 310Providing the formwork plan 2 320Producing the spatial arrangement of formwork elements 330Filling the cavity of the spatial arrangement with concrete A, B, CWork cycles,

Claims

1. A method (100) for the computer-aided conversion of a specified floor plan (1) into a formwork plan (2) for assembling formwork elements for at least one working cycle (A, B, C) of the fabrication of a construction corresponding to the floor plan (1) by concreting, and wherein a spatial arrangement of formwork elements conforming to the formwork plan (2) is produced (320), having the following computer-aided steps: • the specified floor plan (1) is provided (105) by a user, wherein said floor plan (1) contains specified construction joints (12), wherein said construction joints (12) separate construction sections of the construction to be fabricated, which are to be concreted consecutively; • a catalog (3, 3a-3c) is provided (110), which assigns to a plurality of patterns (31a-33a) for courses of planned walls (11) in each case a spatial arrangement (31b-33b) of formwork elements, with which said course can be introduced, by concreting, into the construction to be fabricated; • in areas of the specified floor plan (1) in which no occurrences of patterns (31a-33a) contained in the catalog (3, 3a-3c) have yet been found, occurrences of a pattern (31a-33a) contained in the catalog (3, 3a-3c) are searched for (120); • for each occurrence of the pattern (31a-33a) found, that spatial arrangement (31b-33b) of formwork elements which the catalog (3, 3a-3c) assigns to the pattern (31a-33a) is added (130) to the formwork plan (2), • it is checked (150) whether the specified floor plan (1) has been completely processed; • in response to the specified floor plan (1) not being completely processed, it is checked (160) whether the catalog contains further patterns (31a-33a) which have not yet been searched for in the specified floor plan (1); • in response to the catalog (3, 3a-3c) containing such further patterns (31a-33a), one of these further patterns (31a-33a) is used to branch back (170) to the search (120) in the part of the specified floor plan (1) which has not yet been processed, so that the adding (130) and the checking (150) are iterated over the search (120) in order to completely process the specified floor plan (1); characterized in that the following steps are performed: • in response to the specified floor plan (1) not being completely processed and the catalog (3, 3a-3c) not containing any further patterns (33a-33c) which have not yet been searched for in the specified floor plan (1), ∘ it is checked (180) whether at least one area (1a) of the floor plan (1), which has not yet been processed, contains at least one construction joint (12), ∘ in response to said area (1a) containing at least one construction joint (12), the area is searched (190) for patterns (31a-33a) from the catalog (3, 3a-3c), hiding the construction joint (12), and ∘in response to a pattern (31a-33a) being found (195) in the area (1a), at least one construction joint (12) in the planned floor plan (1) is displaced and / or rotated (200a) so that it no longer breaks the pattern (31a-33a) found, and / or a prompt is issued to the user to displace (200b) the construction joint (12) so that it no longer breaks the pattern (31a-33a) found.

2. The method (100) according to Claim 1, wherein the catalog (3) is selected (111) from a plurality of catalogs (3a-3c) which differ in terms of the optimization objectives with respect to which the spatial arrangements (31b-33b) of formwork elements contained therein are optimized.

3. The method (100) according to any one of Claims 1 to 2, wherein the pattern (31a-33a) is rotated and / or scaled (121) during the search (120), and wherein in response to occurrences of the rotated and / or scaled pattern (31a-33a) being found in the specified floor plan (1), the spatial arrangement (31b-33b) of formwork elements added to the formwork plan (2) is rotated and / or scaled (131) accordingly.

4. The method (100) according to any one of Claims 1 to 3, wherein the catalog (3, 3a-3c) comprises at least directional changes and / or branching of walls as patterns (31a-33a).

5. The method (100) according to Claim 4, wherein the catalog (3, 3a-3c) comprises changes of direction of walls, crossings of walls, T-shaped branches of walls, which are at least rectangular or run at other angles, and / or curved walls having a constant radius of curvature, as patterns (31a-33a).

6. The method (100) according to any one of Claims 4 to 5, wherein in the floor plan (1) changes of direction and / or branches of walls are first searched (122) and thereafter straight walls are searched (123).

7. The method (100) according to any one of Claims 1 to 6, wherein the quantity of concrete and / or wall length required for realization is calculated (106) from the floor plan (1) for at least one working cycle (A, B, C), wherein the required quantity of concrete and / or wall length is compared (107) with a specified threshold value and wherein, in response to the specified threshold value being exceeded, a warning is issued (108) to the user and / or a suggestion is made (109) to the user for a displacement of at least one construction joint (12) in such a way that the specified threshold value is no longer exceeded.

8. The method according to any one of Claims 1 to 7, wherein a separate formwork plan (2) is prepared for each working cycle (A, B, C).

9. The method (100) according to any one of Claims 1 to 8, wherein the formwork plan (2) is converted (240) into an order list (6) for formwork elements by comparison with a list (5) of formwork elements which can be ordered.

10. The method (100) according to Claim 9, wherein it is checked (241) whether there is an alternative formwork element, which performs the same function, to two or more formwork elements in the order list (6) and in response to there being such an alternative formwork element, the latter substitutes the two or more formwork elements (242) previously provided.

11. A method (300) for the fabrication of a construction, having the following steps: • a formwork plan (2) is prepared and provided (310) with the method (100) according to any one of Claims 1-10; • a spatial arrangement of formwork elements conforming to the formwork plan (2) is produced (320); • a cavity defined by said spatial arrangement is filled with a concrete (330).