WALL ELEMENTS, UNIT CONSTRUCTION SYSTEM AND METHOD

Abstract

Wall element (10), comprising an inner surface (20), an outer surface (30), studs (40) and at least one partial cavity (50) and / or cavity (60), wherein the studs are located between the inner surface and outer surface, and wherein the at least one partial cavity and / or cavity are also located between the inner surface and outer surface, and wherein the at least one partial cavity and / or cavity are designed to be filled with reinforced concrete, and wherein the cavity and / or the partial cavity span from the top (T) to the bottom (B) and / or from side to side of the wall element.

Description

WALL ELEMENTS, UNIT CONSTRUCTION SYSTEM AND METHOD FIELD

[0001] This application relates to wall elements, a unit construction system and a method using said elements. The application is in the field of structural building materials. BACKGROUND

[0002] Rapid growth in many areas around the world, driving the need for housing and other functional buildings, has made it essential to employ modern methods and materials with the aim of accelerating construction rates, reducing the weight of buildings and construction materials, increasing life expectancy, and strengthening buildings against earthquakes, as well as other violent natural or man-made hazards. To address this, an innovative solution is needed based on the use of modern methods and modern construction materials that will result in reduced building weight, shorter construction time, and increased durability, which will ultimately combine to reduce construction costs for buildings.

[0003] Currently, there are various types of materials and systems being used in construction. The most commonly used are stone, wood, bricks, (reinforced) concrete, metal, hollow concrete blocks, and plaster, but other materials are also used. To be more specific, these are materials used for exterior walls or even slabs between floors. For less rigid, fragile materials, there is a compensation in the quantity used (thickness or volume) to support the increased weight as the number of floors in the building increases.

[0004] One of the goals in civil engineering is the reduction (lightening) of the weight of structures and buildings. To achieve this goal, engineering has innovated and provided composite materials that are lightweight while still maintaining high strength.

[0005] For a person versed in the technique, it is well known that the lower the weight of a structure, the less energy it absorbs from earthquakes and, Petition 870250081321, dated 10 / 09 / 2025, page 9 / 104 2 / 18 Thus, the seismic effect on the building is reduced. In other words, reducing (lightening) the weight of a building means providing better earthquake protection.

[0006] The use of traditional and outdated building materials, such as clay bricks and blocks and cement blocks, not only increases the magnitude of a building's permanent load, but also increases energy consumption, therefore it can be considered a waste of energy. Furthermore, a slow building rate and a high volume of construction debris resulting from the use of such materials are among the other problems that arise with the use of such traditional materials, with environmental and economic impacts.

[0007] Furthermore, as the weight of a building increases, the cost of the building's structure increases, thus leading to an increase in the cost of the building. These issues can be considered as part of the numerous problems encountered in the field of construction.

[0008] Many building materials are available individually for assembly on the construction site, while others are assembled as prefabricated elements in a production plant, then transported to the site to be erected. Machine work or additional modifications are often required on site to these prefabricated elements to customize them according to the needs of the architectural designs to allow for mechanical, electrical and plumbing (MEP) installations.

[0009] Moreover, there are several problems associated with the construction of multi-story buildings using traditional building construction techniques such as cast concrete, precast concrete, steel frame, timber frame, and masonry. Multi-story buildings constructed using these techniques are built in the traditional way, with the worker on-site applying building materials to first fabricate the multi-story dwelling structure on a foundation at the building site, according to a set of architectural plans. Although these methods of Petition 870250081321, dated 10 / 09 / 2025, page 10 / 104 3 / 18 construction methods have been in place for many years, but there are inherent inefficiencies that result in significant penalties in time, cost, and quality.

[0010] Traditional construction techniques involve a lengthy process and therefore result in construction activity over an extended period of time. Furthermore, finishing work can only be carried out after the structural work is completed. Combined, these activities create both a financial burden and a high cost in terms of labor and working hours. In order to save time, the present invention reduces the time and spends less time preparing ready-to-use panels.

[0011] This in situ manufacturing can result in poorer quality, is prone to an increase in errors and, in particular, human error, and requires workers to innovate in relation to the interconnection of public services, thereby resulting in inconsistency in implementation.

[0012] In short, for all the situations and scenarios mentioned above, the construction process ends up being time-consuming and requiring significant manpower, resulting in a process that is both inefficient and costly. SUMMARY

[0013] The object of this application is to provide wall elements, a unit construction system and method. The selected embodiments are comprised in the dependent claims. Each of which, alone or in any combination with the other dependent claims, may represent an embodiment of this application. The matter described has been developed to improve the approach and methodologies used in the building construction industry for all types of building structures. Also, the purpose of the application is to construct any building and make it more environmentally sound, stronger, faster and safer. A wall element within the meaning of this application is an entire wall or part (e.g., in the case of a long and / or high wall) of an entire wall as an element. A wall element within the meaning of this application is, in contrast, Petition 870250081321, dated 10 / 09 / 2025, p. 11 / 104 4 / 18 for example, with a construction board (e.g., for drywall installation) that can be part of a wall or even used to construct a wall element, according to this request.

[0014] Document WO2022074489A1 discloses modular panels and a system for using said panels.

[0015] The present application provides a reduction in overall weight and thickness, while achieving high flexibility, wide temperature range, and natural element insulation and enhanced sound insulation.

[0016] According to one aspect of the present application, a wall element comprises an inner surface, an outer surface, studs, and at least one partial cavity and / or cavity. The studs are located between the inner and outer surfaces. The at least one partial cavity and / or cavity is also located between the inner and outer surfaces. The at least one partial cavity and / or cavity is designed to be filled with (reinforced) concrete. The cavity and / or partial cavity may extend from top to bottom and / or side to side of the wall element. The cavity and / or partial cavity may not extend the entire length of the wall element. A cavity and / or partial cavity running in a top-to-bottom direction may intersect with a cavity and / or partial cavity running in a side-to-side direction, so that a folded cavity and / or partial cavity is formed.The cavity and / or partial cavity to be filled with concrete is separated from areas or parts of the wall element that should not be filled with concrete, for example, voids. The wall element may additionally comprise such voids. In the context of this disclosure, partial cavities and cavities are to be filled with (reinforced) concrete, and voids are not to be filled with concrete.

[0017] The wall element has a top and a bottom and two sides that extend between them. Each prisoner can be made of any suitable material, such as concrete, wood, steel, stainless steel, aluminum, plastic and Petition 870250081321, dated 10 / 09 / 2025, p. 12 / 104 5 / 18 combinations of the same. The prisoners included in a wall element can be made of different materials. The dimensions of the prisoners are arbitrary since their size will directly influence the dimensions (e.g., thickness or width) of the wall element. Each prisoner can be placed arbitrarily in the wall element and does not need to run the entire length of the wall element. The prisoners can be placed in the wall element so as to run (partially) from the top to the bottom of said wall element.

[0018] The internal and / or external surface may comprise any suitable material, such as boards (e.g., plaster, cement, fiber cement, OSB, MGO, natural slabs, etc.), cement, plaster, stucco, natural stone, bricks, blocks, PV panels, paint, etc.

[0019] Cavities and / or partial cavities may have any suitable dimension. A cavity dimension may assume a distance from the inner surface to the outer surface. Or, in other words, the cavity may assume an inner width of the wall element. Since the inner and / or outer surface will have a certain thickness, cavities and / or partial cavities may have a width that is constituted by the width of the wall element minus the respective thickness of the inner and outer surfaces. The same is true for voids.

[0020] If the cavity and / or partial cavity extends from the top to the bottom of the wall element, they are designed so that, after filling with concrete, the cavities and / or partial cavities form columns or partial columns that are designed to support loads. If the cavity and / or partial cavity extends from side to side of the wall element, they are designed so that, after filling with concrete, the cavities and / or partial cavities form beams that are designed to support loads. The cavities may be supported by temporary supports to withstand the tension during the pouring of the concrete. For the scope and understanding of this application, the term partial cavity also refers to Petition 870250081321, dated 10 / 09 / 2025, page 13 / 104 6 / 18 initially partial cavity that is then completed or sealed, for example, by another element.

[0021] This can have the advantage that construction can be done in a time-efficient and cost-effective manner. Furthermore, the construction can be done in a lightweight manner, which in turn is favorable in terms of earthquake resilience.

[0022] According to one aspect of the present application, at least one partial cavity or cavity of a wall element is at least partially configured by the inner surface and outer surface and at least one stud. This may have the advantage that the cavity or / and partial cavity may be created in an economical manner. For example, the materials used for the inner and / or outer surface have the stability to act as a formwork for the concrete with which the cavity or partial cavity is designed to be filled.

[0023] According to one aspect of the present application, the partial cavity of a wall element is located along an edge area of ​​the wall element. The partial cavity is designed to be combined with a corresponding partial cavity of a wall element or sealed by a wall element to be subsequently installed (such a sealed cavity is still referred to as a partial cavity in this application for differentiation purposes). In other words, the wall element is designed to be combined with another wall element, so that at least one partial cavity becomes a (partial) cavity that is designed to be filled with concrete. If two wall elements both have a partial cavity and are joined at their respective edge areas, the two partial cavities form a single (partial) cavity that can be filled with concrete.If a first wall element that has a partial cavity is joined with a second wall element that does not have a cavity that would complement the partial cavity of the first wall element, then the second wall element seals the partial cavity of the first wall element so that... Petition 870250081321, dated 10 / 09 / 2025, page 14 / 104 7 / 18 concrete can be poured into the (partial) cavity created. The edge area can be located on at least one or both sides, at the top or bottom of the wall element. This can have the advantage that the wall element or multiple wall elements installed close to each other can function as formwork.

[0024] According to one aspect of the present application, a wall element further comprises at least one of the following: insulation, anchor points for fixings, MEP installations, and sealing structures. The insulation may enhance the insulating performance of the wall element. The anchor points for fixings may comprise anchor points for sinks or other heavy equipment such as cabinets or electric pumps that are to be fixed to the inner surface of the wall element. The anchor points may further comprise points for fixings to the outer surface such as a projecting roof or a wall. The MEP installations may include any installation known in that field. This may have the advantage that a structure comprising the unit building system can be efficiently constructed.The sealing structure can seal the area where the partial cavities of two wall elements are joined to form a (partial) cavity.

[0025] According to one aspect of the present application, a unit building system comprises a first and a second wall element, according to any of those set out above. The unit building system further comprises a slab element. The first and second wall elements support the slab element. The slab element can be either a fully precast element (referred to as a dry slab) or a partially precast element (for example, one in which concrete will be poured during the construction process). This can have the advantage that a structure comprising several unit building systems (for example, any building) can be efficiently constructed.

[0026] According to one aspect of the present application, all the elements (by Petition 870250081321, dated 10 / 09 / 2025, page 15 / 104 8 / 18 For example, wall and slab elements) of a unit building system are in fluid communication. Through fluid communication, for example, concrete can flow between the slab element and the first and / or second wall element. This can have the advantage that a structure can be built efficiently.

[0027] According to one aspect of the present application, a unit construction system further comprises a third wall element that is installed subsequent to the first or second wall element. At least one partial cavity in the edge area of ​​the first and / or second wall element and the subsequently installed third wall element form a (partial) cavity together (see above). This means that the first and / or second wall element has at least one partial cavity in an edge area. Said partial cavity is complemented by another partial cavity comprised by the third element or by the third element itself (see above). The (partial) cavity(ies) is / are designed to be filled with (reinforced) concrete. This may have the advantage that, by means of the unit construction system, a structure can be built to have increased stability.

[0028] According to one aspect of the present application, the slab element of a unit building system is positioned to rest on top of an inner edge of the wall element(s). The inner edge may be located on top of the wall element(s). The inner edge may be located in the vicinity of the inner surface. Also, the inner edge may be on top of the inner surface. This may have the advantage that, using the unit building system, a structure can be built efficiently.

[0029] According to one aspect of the present application, a formwork for the slab element of the unit building system is connected to the wall elements. The formwork is used to cast the slab element in situ. Petition 870250081321, dated 10 / 09 / 2025, page 16 / 104 9 / 18 While casting the slab element, the concrete can also flow into at least one (partial) cavity formed by the wall element(s). This can have the advantage that, using the unit construction system, a structure can be built efficiently.

[0030] According to one aspect of the present application, the unit construction system comprises a guide. The guide is designed to position the wall element during the installation of the wall element. The guide may also assist in the alignment of subsequently installed wall elements. This may have the advantage that, using the unit construction system, a structure can be built efficiently.

[0031] According to one aspect of the present application, a method for installing a unit building system comprising the following steps: Install wall elements; Positioning slab elements; Pouring concrete in such a way that the concrete is filling the (partial) cavities in the wall elements. This can have the advantage that, using this method, a structure can be built efficiently.

[0032] According to one aspect of the present application, the step of positioning the slab elements comprises positioning the slab elements to be in fluid communication with the wall elements. This may also include pouring concrete into the slab element so that the concrete is filling the (partial) cavities in the wall elements.

[0033] According to one aspect of the present application, the step of installing the wall elements comprises aligning partial cavities in the respective wall elements to form a (partial) cavity. This may involve aligning two partial cavities, each comprised by a respective wall element, which are aligned to form, together, a (partial) cavity. Alternatively, only one wall element comprises a partial cavity and the other wall element seals this partial cavity, for example, with a surface when the two wall elements are Petition 870250081321, dated 10 / 09 / 2025, page 17 / 104 10 / 18 aligned and consequently forming a (partial) cavity. This can have the advantage that, using the method, a structure can be built efficiently.

[0034] According to one aspect of the present application, the reinforcement is inserted into at least one (partial) cavity. The reinforcement may connect the slab element with the wall element. The reinforcement may be rebar. This may have the advantage that stability may be increased. The reinforcement may be placed in the slab element(s) and, for example, connect the slab elements (see below). The reinforcement comprising, for example, a precast slab (element) may be connected to the reinforcement in at least one (partial) cavity.

[0035] According to one aspect of the present application, the step of placing the slab element comprises setting the slab element on top of an inner edge of the wall element(s) (see above). This may have the advantage that, using the method, a structure can be built efficiently.

[0036] According to one aspect of the present application, the step of placing the slab element comprises placing a form for the slab element which is connected to the wall elements (see above). This may have the advantage that, using the method, a structure can be built efficiently.

[0037] According to one aspect of the present application, the method further comprises the step of placing a guide before the step of installing the wall elements. Moreover, the step of installing the wall elements comprises installing the wall elements by means of the guide. This may have the advantage that, using the method, a structure can be built efficiently.

[0038] Each of the above aspects should be considered an invention in itself. The aspects may be freely combined with each other, and each feature not described as being dependent on another feature may also be freely combined with one another. System features, elements, and method may be included interchangeably. The steps of the method are Petition 870250081321, dated 10 / 09 / 2025, page 18 / 104 11 / 18 at least partially explained in light of the respective elements of this disclosure. BRIEF DESCRIPTION OF THE FIGURES

[0039] Advantages and additional features of the present disclosure will be evident from the accompanying figures. The figures are for informational purposes only and are not limiting. The figures schematically describe embodiments of the present application. Therefore, the accompanying figures cannot be considered limiting, for example, with regard to the dimensions of the present disclosure.

[0040] Fig. 1 represents a schematic top (or bottom) sectional plan view of a wall element.

[0041] Fig. 2 represents another schematic side sectional view in elevation of the wall element shown in Fig. 1.

[0042] Fig. 3 is a sectional top view (similar to Fig. 1) of a unit building system.

[0043] Fig. 4 is a sectional top view (similar to Fig. 3) of a unit building system.

[0044] Fig. 5 is a schematic perspective view of a unit construction system.

[0045] Fig. 6 is a flowchart of a method for installing a unit building system.

[0046] It should be noted that, in the different modalities described in this document, the same parts / elements are numbered with the same numerical references; however, the disclosure in the detailed description can be applied to all parts / elements that have the referred numerical references. Also, the directional terms / positional indicators chosen in this description, such as left, right, top, bottom, above, upper, below, lower, down, side, to the side, are referring to the figure directly described, and can correspondingly be applied to the new position after a change in position or another position represented in another figure. All figures are not to scale and no indication of Petition 870250081321, dated 10 / 09 / 2025, p. 19 / 104 12 / 18 ratios should be taken into consideration. DETAILED DESCRIPTION OF THE MODALITIES

[0047] With initial reference to Fig. 1, a sectional top (or bottom) plan view of a wall element 10 is shown. The sectional plane is parallel to a top or bottom (or side-by-side) plane of the wall element 10. The wall element 10 comprises three studs 40 to which an inner surface 20 and an outer surface 30 are attached. The studs 40 are positioned in the wall element 10 to run from top to bottom, as can be seen in Fig. 1. Between the outer studs 40 on each side of the wall element 10, there is a third stud 40. The three studs 40, together with the inner surface 20 and outer surface 30, configure two cavities 60 or voids 61. In the embodiment shown in Fig. 1, the voids 61 are shown, since they are not to be filled with concrete. There is insulation 80 positioned in empty spaces 61, which is located on the inner surface 20.However, the insulation 80 could also be (additionally) located on the outer surface 30 (see Fig. 3) or completely fill the empty space(s) 61. Each of the empty spaces 61 can be a cavity 60 and, consequently, designed and intended to be filled with concrete.

[0048] The outer studs 40 are displaced toward the middle of the wall element or toward the stud 40 located in the middle of the wall element 10. This displacement creates a partial cavity 50 in each edge area 70 of the wall element 10. There can only be one such partial cavity 50 comprised by the wall element 10.

[0049] Fig. 2 represents another sectional view of the wall element 10 described above. The sectional plane in Fig. 2 is perpendicular to the projection plane in Fig. 1. In other words, the sectional plane in Fig. 2 is perpendicular to the sectional plane in Fig. 1 and is situated in one of the empty spaces 61 shown in Fig. 1. The wall element 10 is viewed from the side and a prisoner 40 is Petition 870250081321, dated 10 / 09 / 2025, p. 20 / 104 13 / 18 visible. In Fig. 2, a partial cavity 50 is shown at the top T of the wall element 10. There is an inner edge 95 of the wall element 10, so that a slab element 200 can be placed there (see below). At the top T, the outer surface 30 extends more than the inner surface 20. This extension is, however, optional. The inner surface 20 and the outer surface 30 can have the same height. When a slab element 200 or formwork for a slab element (not shown) is placed in contact with the inner edge 95 and concrete is subsequently poured into the slab element 200, the height of the outer surface 30 will determine the thickness of the slab (element).

[0050] The inner surface 20 is represented to extend higher than a cavity bottom 51, however, the inner surface 20 can be level with the cavity bottom 51. If concrete is poured into the partial cavity 50, in particular, if the wall element 10 is in contact with a slab element 200, then the partial cavity 50 fills with concrete and a beam is created, which extends from side to side (left to right in fig. 1).

[0051] Fig. 2 additionally depicts a 90° guide located at the bottom B of wall element 10. The 90° guide can be fixed to a surface on which wall element 10 is placed. Here, the 90° guide has the same width as an inner width of wall element 10, so as to fit into wall element 10. Since wall element 10 fits precisely into guide 10, it is easy to place the wall element(s) 10 when installing it / them. The 95 guide can only be placed sectionally (for example, in areas where wall elements 10 are placed close to each other) or the 90 guide can run the entire length of the wall element (side to side, left to right in Fig. 1) or be even longer, so that multiple wall elements 10 can be placed in one 90 guide. There is an insulation 80 located in the empty space 61 on the inner surface 20.

[0052] Fig. 3 represents a sectional top view (similar to Fig. 1) of a unit 100 building system. Wall elements 11, 12, 13 have essentially the same structure as that shown in Fig. 1, except for Petition 870250081321, dated 10 / 09 / 2025, p. 21 / 104 14 / 18 insulation 80 which is located on the outer surface 30. However, the second wall element 12 and the third wall element 13 have, on one side, a longer outer surface 30 in their respective partial cavities 50. Therefore, by placing the second and third wall elements 12, 13 close to each other, a (partial) cavity 50 is formed in the resulting corner (top right corner in Fig. 3). The first wall element 11 is shown having a small distance to the second wall element 12 for differentiation and ease of explanation. However, the wall elements 11, 12 can be positioned so that the inner surface 20 and the outer surface 30 touch (as in the corner, described above). The resulting (partial) cavity formed by the two partial cavities 50 of the first and second wall elements 11, 12 can be filled with concrete, like the (partial) cavity 50 in the corner.The first and third wall elements 11, 13 have partial cavities 50 at their other ends which are represented in the respective corners of the construction system 100 (left and right at the bottom) which, in turn, can be supplemented with other partial cavities of additional wall elements. There are voids 61 that have insulation 80 located between the partial cavities 50. Each of the voids 61 can be a cavity 60 and, consequently, designed and intended to be filled with concrete.

[0053] Fig. 4 represents another sectional top view (similar to Fig. 3) of a unit 100 building system. Here, a first and second wall element 11, 12 are shown. The second wall element 12 has only a partial cavity on the right side. The two wall elements are shown as being spaced apart, however, they can be placed so that they touch each other (see above). The partial cavity 50 on the right side of the first wall element 11 is complemented by a surface (face) of the second wall element 12. Here, said surface comprises the inner surface and the outer surface, as well as the stud 40. Therefore, a cavity is formed, which can be filled with Petition 870250081321, dated 10 / 09 / 2025, page 22 / 104 15 / 18 concrete. Furthermore, such a gap can be closed by means of a sealing structure comprising at least one of the wall elements to seal the partial cavity(ies) that is / are joined by two wall elements. There are also empty spaces 61 that have insulation 80 located between the partial cavities 50. Each of the empty spaces 61 can be a cavity 60.

[0054] Fig. 5 is a schematic perspective view of a unit 100 building system. The slab elements 200 are positioned to rest on top of the inner edge 95 of the respective wall element 10 (see detail A). The bracing 96 is placed in the cavities 50. Horizontal bracing 97 is placed in the slab elements 200 connecting, for example, the area where two slab elements 200 are joined in a wall element 10 (left side in Fig. 5). The horizontal bracing 97 can also reach the partial cavities 50.

[0055] Concrete 201 is poured into the slab elements 200 as partially shown in Fig. 5. Concrete 201 forms a layer on top of the slab elements 200 and fills the (partial) cavities 50. There are vertical (partial) cavities 50 (see Fig. 1) which have reinforcements 96 and horizontal partial cavities 50 on top of the T-shaped wall elements 10 (see also Fig. 2). These cavities are also filled with concrete and therefore form (vertical) columns and (horizontal) beams. The wall elements 10 can be placed and aligned by means of the guides 90 (see Fig. 2). There may also be horizontal reinforcements that strengthen the resulting beams. The (partial) cavities 50 can be supported by temporary supports to withstand the tension during the pouring of the concrete.

[0056] An alternative would be to use dry slab elements where it is not necessary to pour concrete on top of them, since they already have the desired thickness. In such a case, the concrete would only be poured into the (partial) cavities 50 (vertical and / or horizontal). Such slab elements can be placed as can be seen on the left in Fig. 5, where the slab elements are located on top of the Petition 870250081321, dated 10 / 09 / 2025, p. 23 / 104 16 / 18 wall elements having a gap on the outer surface. Through this gap, concrete can be poured into the (partial) cavities 50. Also, there may be openings in the slab elements through which concrete can be poured into the (partial) cavities 50.

[0057] Fig. 6 is a flow diagram of a method for installing a unit building system 100, as described above. Essentially, all the steps are already described above. In the first step, the wall elements 10 are installed and their partial cavities 50 are aligned. A guide 90 can be placed before the step of installing the wall elements. The guide 90 can be used to place and align the wall elements in the step of installing the wall elements. In the next step, the slab elements 200 are positioned. The slab elements 200 can be positioned to be in fluid communication with the wall elements 10 so that the concrete that is poured into the slab elements 200 can flow into said cavities. The slab elements 200 can be positioned to sit on top of an inner edge 95 of the wall element(s).

[0058] In the next step, reinforcements 96 are inserted into at least one (partial) cavity 50 or cavity 60. The reinforcements may also be in contact with the slab elements. In the next step, concrete is poured into the slab elements 200 so that the concrete is filling the (partial) cavities 50 and / or cavities 60 in the wall elements 10. The step of placing the slab element may comprise placing a form for the slab element 200 which is connected to the wall elements 10 in order to place the slab element 200 in situ.

[0059] In all figures, the same numerical references are used for identical or similar parts / elements as in the other figures. Therefore, a detailed explanation of such a part / element will only be given once for the sake of brevity. Numerical references such as first and second are for the purpose of distinction only, since the order can be changed voluntarily. The dimensions are illustrative, especially the Petition 870250081321, dated 10 / 09 / 2025, p. 24 / 104 17 / 18 partial cavity dimensions and cavities. Both cavity types (partial 50 and cavity 60) can be filled with concrete.

[0060] The modalities represent possible variations of carrying out the subject matter of the application; however, it should be noted that the subject matter of the application is not limited to the modalities / variations represented, but numerous combinations of the modalities / variations described in this document are possible, and these combinations are within the skill range of the person skilled in the art who is motivated by this description. The wall elements 10 shown in figs. 1 to 5 have essentially the same basic design, as explained in relation to fig. 1.

[0061] The scope of protection is determined by the appended claims. The description and drawings, however, should be considered when interpreting the claims. Unique features or combinations of features of the described and / or represented features may represent independent inventive solutions. The objective of the independent solutions can be found in the description.

[0062] It should also be noted that, for better understanding, parts / elements are represented to some extent out of scale and / or enlarged and / or reduced scale.

[0063] List of reference signs first wall element second wall element third wall element inner surface outer surface stud partial cavity cavity bottom Petition 870250081321, dated 10 / 09 / 2025, page 25 / 104 18 / 18 empty space edge area insulation guide inner edge reinforcement horizontal reinforcement unit construction system cast concrete slab element Top Bottom

Claims

CLAIMS 1. Wall element (10) characterized by comprising an inner surface (20), an outer surface (30), studs (40) and at least one partial cavity (50) and / or cavity (60), wherein the studs are located between the inner surface and outer surface, and wherein the at least one partial cavity and / or cavity is also located between the inner surface and outer surface, and wherein the at least one partial cavity and / or cavity is designed to be filled with reinforced concrete, and wherein the cavity and / or the partial cavity extends from the top (T) to the bottom (B) and / or from side to side of the wall element.

2. Wall element (10), according to claim 1, characterized in that at least one partial cavity (50) or cavity (60) is at least partially configured by the inner surface (20) and outer surface (30) and at least one stud (40).

3. Wall element (10), according to claim 1 or 2, characterized in that the partial cavity (50) is located along an edge area (70) of the wall element, and in that the partial cavity is designed to be combined with a corresponding partial cavity of a wall element or sealed by a wall element that is to be subsequently installed.

4. Wall element (10), according to any of the preceding claims, characterized by further comprising at least one of an insulation (80), anchor points for fixings, MEP installations.

5. Unit construction system (100) characterized by comprising a first and a second wall element (11, 12) as defined in any of the preceding claims which additionally support a slab element (200).

6. Unit construction system (100), according to claim Petition 870250081321, dated 10 / 09 / 2025, page 27 / 104 2 / 3 5, characterized by the fact that all elements are in fluidic communication.

7. Unit construction system (100), according to claim 5 or 6, characterized by further comprising a third wall element (13) installed subsequent to the first (11) or second (12) wall element, wherein at least one partial cavity (50) in the edge area (70) of the first and / or second wall element is forming a cavity together with the third wall element, and wherein the cavity(ies) is / are designed to be filled with reinforced concrete.

8. Unit construction system (100), according to any one of claims 5 to 7, characterized in that the slab element (200) is positioned to sit on top of an inner edge (95) of the wall element(s).

9. Unit construction system (100), according to any one of claims 5 to 7, characterized in that a form for the slab element (200) is connected to the wall elements (11, 12, 13).

10. Unit construction system (100), according to any one of claims 5 to 9, characterized by further comprising a guide (90), designed to position the wall element (10).

11. Method for installing a unit building system (100) characterized by comprising the steps: - Install wall elements (11, 12, 13); - Position slab elements (200); - Pour concrete so that the concrete is filling the cavities (50, 60) in the wall elements.

12. Method according to claim 11, characterized in that the step of positioning the slab elements (200) comprises positioning the slab elements to be in fluid communication with the wall elements (10). Petition 870250081321, dated 10 / 09 / 2025, page 28 / 104 3 / 3 13. Method according to claim 11 or 12, characterized in that the step of installing the wall elements comprises aligning partial cavities (50) in the respective wall elements to form a cavity.

14. Method according to claims 11 to 13, characterized in that the reinforcement (96) is inserted into at least one cavity.

15. Method, according to any one of claims 11 to 14, characterized in that the step of placing the slab element comprises setting the slab element on top of an inner edge (95) of the wall element(s).

16. Method, according to any one of claims 11 to 15, characterized in that the step of placing the slab element comprises placing a form for the slab element that is connected to the wall elements.

17. Method, according to any one of claims 11 to 16, characterized by further comprising the step of placing a guide (90) before the step of installing the wall elements (11, 12, 13), and the step of installing the wall elements comprises installing the wall elements by means of the guide.

Images