A foundation system and foundation method

Abstract

The present invention relates to a foundation system for an associated building, said system comprising: a bottom frame adapted for being arranged on the ground and at least one vertical column or screw attached to the bottom frame, wherein the bottom frame comprises at least one cutout, preferably a plurality of cutouts, said cutout being adapted for attachment of a vertical column or screw. The vertical column(s) and / or screw(s) comprises a load transferring flange to be arranged in connection with the bottom frame and configured to transfer load from the screw(s) and / or column(s) to the bottom frame in a direction towards the ground. Furthermore, the invention relates to a method for performing foundation for an associated building, wherein said method comprises the steps of: arranging a bottom frame on the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame; and attaching a plurality of vertical columns and / or crews to the bottom frame, preferably into cutouts of the bottom frame.

Description

[0001] A FOUNDATION SYSTEM AND FOUNDATION METHOD

[0002] FIELD OF THE INVENTION

[0003] The present invention relates to a foundation system for an associated building, said system comprising: a bottom frame adapted for being arranged on the ground and at least one vertical column or screw attached to the bottom frame, wherein the bottom frame comprises at least one cutout, preferably a plurality of cutouts, said cutout being adapted for attachment of a vertical column or screw. The vertical column(s) and / or screw(s) comprises a load transferring flange to be arranged in connection with the bottom frame and configured to transfer load from the screw(s) and / or column(s) to the bottom frame in a direction towards the ground.

[0004] Furthermore, the invention relates to a method for performing foundation for an associated building, wherein said method comprises the steps of: arranging a bottom frame on the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame, and attaching a plurality of vertical columns and / or crews to the bottom frame, preferably into cutouts of the bottom frame.

[0005] BACKGROUND OF THE INVENTION

[0006] The construction industry is rapidly growing and due to the demand of both effective and sustainable solutions, the construction industry calls for optimization and new solutions are requested.

[0007] Within the area of building foundations there are several solutions and methods that are known and available today, however the solutions and methods have been known for decades and none of the known foundation solutions and methods provides reduction of CO2 emissions or reduction of waste material in a construction process.

[0008] Hence, an improved foundation system and foundation method, preferably an efficient and reliable solution would be advantageous, and in particular a more resistant, economical, and sustainable solution and method with longevity would be advantageous.

[0009] OBJECT OF THE INVENTION

[0010] It is an object of the present invention to provide an alternative to the prior art. In particular, it may be seen as an object of the present invention to provide a foundation solution and foundation method that solves the above-mentioned problems.

[0011] DESCRIPTION OF THE INVENTION

[0012] The above-described object and several other objects are intended to be obtained by providing a foundation system for an associated building. The system comprises a bottom frame adapted for being arranged on the ground.

[0013] The system furthermore comprises:

[0014] - one or more vertical columns configured to be attached to the bottom frame, which vertical columns comprise a load transferring flange, and / or

[0015] - one or more screws comprising at least one outer threading, an upper end, a lower end, and a load transferring flange arranged at the upper end or between the upper and the lower end.

[0016] The bottom frame comprises at least one cutout, preferably a plurality of cutouts. The cutout being adapted for:

[0017] - attachment of the one or more vertical columns, and / or

[0018] - receiving the one or more foundation screws.

[0019] The load transferring flanges are arranged in connection with the bottom frame and configured to transfer load from the screws and / or columns to the bottom frame in a direction towards the ground.

[0020] The load transferring flanges may alternatively be referenced as force transferring flanges. The load transferring flanges may be incorporated as an integral part of the vertical columns. The load transferring flanges may be comprised in the screws as bearing piles.

[0021] The associated building may alternatively be a fence or any alternative construction to be mounted to a foundation.

[0022] The foundation system may be adapted for being arranged on the ground in an associated excavation, such as in an edge excavation.

[0023] Within the invention it should be understood that the load transferring flanges may be comprised directly in the screws or the columns or included as an additional element. Within the invention it should be understood that the screws may be configured for anchoring the bottom frame to the ground with the first outer threading to be arranged in the ground.

[0024] The invention is particularly, but not exclusively, advantageous for providing a foundation system, which is easy to produce and manufacture, easy to handle on the construction site and easy to install and establish in the ground. Furthermore, the system is, compared to other foundation systems, decreasing the CO2 emission and reducing waste materials and thereby optimizing the material use in a construction process.

[0025] Moreover, the foundation is at least partly based on a system with prefabricated elements, which is a great advantage compared to known alternatives, since the elements are ready for use immediately after the elements are provided on the construction site. The prefabricated elements also provide the possibility of using the elements without any challenges or extended building process at any time of the year, thereby not being dependent on the season.

[0026] Additionally, the foundation system is scalable and can equally be used for smaller constructions, such as family houses, and / or it can be used for larger construction, such as high-rise buildings.

[0027] In one embodiment, the foundation system may only comprise:

[0028] - a bottom frame adapted for being arranged on the ground in an associated excavation, such as in an edge excavation, and

[0029] - a plurality of vertical columns attached to the bottom frame, wherein the bottom frame comprises at least one cutout, preferably a plurality of cutouts, said cutout being adapted for attachment of a vertical column.

[0030] In one embodiment of the invention the vertical columns comprise an upper end and a lower end.

[0031] In one embodiment, the foundation system may comprise:

[0032] - a bottom frame adapted for being arranged on the ground in an associated excavation, such as in an edge excavation, wherein the bottom frame comprises a top face adapted to face away from the ground when in use, one or more vertical columns with an upper column end and a lower column end, said lower column end being attached to the bottom frame and said vertical columns extending away from the top face of the bottom frame, and

[0033] - a top frame attached to the upper column end, wherein said bottom frame, vertical columns, and top frame form a single element achieved by a casting process.

[0034] The embodiment is particularly, but not exclusively, advantageous for providing the possibility of attachments, such as attachment of the columns to a frame or attachments of a part / portion to the columns.

[0035] In one embodiment of the invention the vertical columns have a height being substantially 30 cm or more. Examples may be height such as 30-45cm, 45-90cm or 50-80cm. Within the invention it should be understood that the height of the columns may be varying and thereby other heights than the above examples are within the scope of the invention, also height below 30 cm.

[0036] In one embodiment of the invention, the vertical columns comprise an outer threading and the cutouts in the bottom frame comprise a complementary threading, so that the columns are attached to the bottom frame by a threaded connection.

[0037] The embodiment is particularly, but not exclusively, advantageous for providing the possibility of attachments, such as attachment of the columns to the frame. This is beneficial in providing a foundation where the columns are height-adjustable relative to the bottom frame. Furthermore, a combination of the well-known screw foundation and a traditional solid foundation is achieved with the benefits of optimized material consumption and transferring applied forces to the columns to the bottom frame.

[0038] Within the invention, it should be understood, that the columns:

[0039] - may be casted on site, such as in-situ, or pre-casted,

[0040] - may be in any suitable materials,

[0041] - may be a screw comprising a foot portion for transferring loads / pressure from the column,

[0042] - may have a fixed height or being adjustable in the height, and / or

[0043] - may have a cavity. In one embodiment of the invention, at least the bottom frame and the vertical columns, preferably also a top frame, constitute a bearing foundation.

[0044] In one embodiment of the invention, the foundation screw may comprise an outer threading and the cutouts in the bottom frame comprise a complementary threading, so that the foundation screws are attached to the bottom frame by a threaded connection.

[0045] In one embodiment of the invention, the foundation screws may constitute a column being a bearing pile and / or may constitute an anchoring screw, anchoring the frame to the ground.

[0046] Hence, the screws may constitute one or more of the columns being bearing piles and thus make up the bearing foundation in combination with the frame.

[0047] The embodiment is particularly, but not exclusively, advantageous for providing the possibility of attachments, such as attachment of the columns to the frame. This is beneficial in providing a foundation where the columns are height-adjustable relative to the bottom frame. Furthermore, a combination of the well-known screw foundation and a traditional solid foundation is achieved with the benefits of optimized material consumption and transferring applied forces to the columns to the bottom frame.

[0048] In one embodiment of the invention, the cutouts adapted for receiving the screw(s) are throughgoing cutouts and the foundation screw(s) is configured to be arranged through the cutouts with the load transpiring flange arranged on one side of the bottom frame and a threaded part in the ground.

[0049] In one embodiment of the invention, the frame pieces may constitute a corner profile, being a flat profile with a 90-degree bend i.e. having two arms, one arm to be arranged in line with other frame pieces and the other arm to be arranged substantially levelled with the other arm, but perpendicular to the other frame pieces.

[0050] The embodiment is particularly, but not exclusively, advantageous for providing sideways stability to the foundation. The corner profile may comprise multiple cutouts adapted for receiving cast columns and / or screws being columns or anchoring screws or a combination of a screw and a bearing pile, wherein the bearing pile when in combination with the screw has the features and effects of a vertical column. In one embodiment of the invention, the system may comprise one or more screws with an outer threading. The screw may be attached to the bottom frame through one of more cutouts with a complementary threading. The screws may constitute a column being a bearing pile and / or may constitute an anchoring screw, anchoring the frame to the ground.

[0051] Hence, the screws may constitute one or more of the columns being bearing piles and thus make up the bearing foundation in combination with the frame.

[0052] For establishing the foundation, the screws may be screwed into the ground in a bottom part of an excavation, then a frame may be cast in bottom part of excavation casting the screws into the frame and hence obtain columns formed by the screws extending out from and above the frame.

[0053] The obtained foundation may be combined with additional columns and / or a top frame.

[0054] In one embodiment of the invention the vertical columns comprise a top portion adapted for providing a vertical column being adjustable in the height in a longitudinal direction.

[0055] The embodiment is particularly, but not exclusively, advantageous for providing a foundation system that can be easily and simply levelled. The top portion is attached to an upper end of the vertical columns and the upper end of the columns is via adjustable the top portion.

[0056] The adjustment is preferably made though a thread arrangement. However, the adjustment is not limited to a thread arrangement.

[0057] In one embodiment of the invention the vertical columns are adapted for being casting moulds for at least concrete.

[0058] The embodiment is particularly, but not exclusively, advantageous for providing a system, wherein the vertical columns can be strengthened by casting concrete into the columns, such as in situ, thereby the columns is adapted for being casting moulds.

[0059] It should be understood that it is also a possibility within the invention that the vertical columns are pre-casted before being positioned / arranged on the bottom frame. The vertical columns may within the invention be either prefabricated, partly prefabricated and / or being casting mould for casting on the construction site.

[0060] Also, it should be understood that the vertical columns may be in any material, however it is preferred that the columns are at least partly made of concrete.

[0061] In one embodiment of the invention the vertical columns are adapted for being attached to the cutouts of the bottom frame at the lower end, so that the vertical columns are attached to the bottom frame by casting.

[0062] The embodiment is particularly, but not exclusively, advantageous for providing a reliable and efficient system being easy to collect and install at the construction site.

[0063] In one embodiment of the invention the vertical columns are adjustable in the height in a longitudinal direction.

[0064] The embodiment is particularly, but not exclusively, advantageous for providing a system that can be leveled on site. Thereby, the leveling of the foundation can be made precisely and with the highest possible accuracy.

[0065] In one embodiment of the invention the vertical columns are attachable and detachable to the bottom frame and / or the top frame.

[0066] The embodiment is particularly, but not exclusively, advantageous for providing an easy collectable system.

[0067] In one embodiment of the invention the vertical columns comprise a top portion, said top portion:

[0068] - being attachable and detachable to the upper end of the vertical columns, and

[0069] - being adapted for adjusting the height of the columns, and

[0070] - preferably comprising a thread arrangement for allowing the adjustment of the height of the columns.

[0071] The embodiment is particularly, but not exclusively, advantageous for providing an easy solution for leveling the foundation system in a perfectly accurate manner.

[0072] In one embodiment of the invention the plurality of columns is at least substantial vertical concaved. The embodiment is particularly, but not exclusively, advantageous for providing columns with low weight, with less material use and being suitable for being casting moulds.

[0073] In one embodiment of the invention the bottom frame comprising:

[0074] - a plurality of bottom frame pieces adapted for being assembled into one coherent bottom frame.

[0075] The embodiment is particularly, but not exclusively, advantageous for providing a frame that is easy to manufacture, easy to transport and easy to assemble / connect into a reliable and effective frame with high strength.

[0076] In one embodiment of the invention the bottom frame comprises cutout and through the cutout protruding reinforcement is arranged.

[0077] The embodiment is particularly, but not exclusively, advantageous for providing vertical columns adapted for being casting moulds with increased strength properties. When the casting mould is attached to the bottom frame, the mould is thereby surrounding the protruding reinforcement, and when the mould is casted with concrete, the protruding reinforcement will thereby perform perfectly as reinforcement to concrete casted columns.

[0078] In one embodiment of the invention system further comprising:

[0079] - a top frame adapted for being arranged on the upper end or the top portion of the foundation screw,

[0080] - preferably said top frame comprising a plurality of top frame pieces adapted for being collected into one coherent top frame.

[0081] Alternatively, the system further comprises:

[0082] - a top frame adapted for being arranged on the upper end or the top portion of the vertical columns,

[0083] - preferably said top frame comprising a plurality of top frame pieces adapted for being collected into one coherent top frame. The embodiment is particularly, but not exclusively, advantageous for providing a foundation system, wherein the strength of the system can be increased by providing a further frame - the top frame.

[0084] The top frame may also be manufactured in pieces and thereby also be easy to manufacture, easy to transport and easy to assemble / connect into a reliable and effective frame with high strength.

[0085] In one embodiment of the invention the top frame pieces are at least substantially identical to the bottom frame pieces.

[0086] The embodiment is particularly, but not exclusively, advantageous for providing a system wherein the same frame or the same frame pieces can be used for both the bottom frame and the top frame.

[0087] In one embodiment of the invention the system further comprising:

[0088] - a plurality of brackets, such as fittings or mounting, adapted for being arranged on the top of the screws.

[0089] Alternatively, or additionally, the system comprises a plurality of brackets, such as fittings or mounting, adapted for being arranged on the top of the vertical columns.

[0090] The embodiment is particularly, but not exclusively, advantageous for providing a foundation system, wherein the strength of the system can be increased by providing the brackets. The brackets may be seen as an alternative to the top frame. However, it should be understood that it is not a demand for the system to comprise either a top frame or brackets. The system may perform as the foundation for a building with only the bottom frame and the vertical columns, and the top frame and / or the brackets should therefore be seen as a potential add-on.

[0091] In one embodiment of the invention:

[0092] - the bottom frames and / or the top frames are made of concrete, preferably concrete with reinforcement, such as iron, and / or made of steel, such as iron, and / or made of wood, and / or made of aluminum, and / or as a combination of materials, and / or

[0093] - vertical columns when adapted for being casting mould is made of:

[0094] - dissolvable material, - recycled material, and / or

[0095] - plastic, such as RPET or PVC, and / or

[0096] - vertical columns when prefabricated is made of: concrete, preferably with reinforcement and / or

[0097] - the inner portion of the vertical columns are made of concrete, preferably concrete with reinforcement, such as iron.

[0098] In general, when referring to concrete, this may also cover any comparable composites suitable for casting, including virgin and / or recycled materials. The casting may also include pressing or molding.

[0099] Within the invention, the bottom frame pieces:

[0100] - may be connected directly to each other for connecting the pieces into a bottom frame, or

[0101] - may be connected indirectly to each other via connecting elements into a bottom frame.

[0102] In one embodiment of the invention the connecting elements of the top bottom pieces comprise cutout.

[0103] The embodiment is particularly, but not exclusively, advantageous for water collection, accumulate earth energy or other technical conditions.

[0104] Within the invention, the top frame pieces:

[0105] - may be connected directly to each other for connecting the pieces into a top frame, or

[0106] - may be connected indirectly to each other via connecting elements into a top frame.

[0107] In one embodiment of the invention the connecting elements of the frame pieces comprises cutout.

[0108] The embodiment is particularly, but not exclusively, advantageous for water collection, accumulate earth energy or other technical conditions. In one embodiment of the foundation system, each of the top frame and the bottom frame comprises at least one cutout being aligned in a substantially horizontal direction, said cutout being adapted for receiving a screw, said screw comprising an upper end, a lower end, a threading and a load transferring flange arranged between the upper and the lower end, wherein said threading is arranged at least in the lower end and is configured to be screwed into the ground, and wherein the load transferring flange is adapted to connect to the top frame or the bottom frame for transferring loads applied to the screw to said frame.

[0109] One benefit of the foundation system is that it may be arranged in an excavation without additional casting. Alternatively, a small casting layer may be provided either below the casting system, on top of the casting system or both for leveling of the achieved foundation.

[0110] The foundation may have the benefits of reduction in both material and CO2 compared to convention solid cast foundations. The foundation system may preferably be used in a depth where the ground is frost free. The foundation system may be suitable to be used for excavation with non-bearing layers. The foundation system may provide for technical installations in the space between the columns, bottom frame and top frame.

[0111] One effect of the foundation system may be to achieve a scalable foundation system for achieving foundations obtained by minor building blocks being precast elements.

[0112] In one embodiment, the foundation system comprises a kit for assembly into a foundation screw and / or vertical column. The kit comprises at least a first part comprising the load transferring flange, and a second part, wherein the first or second part comprises an opening for receiving the second or first part.

[0113] One effect is that the foundation system may be a modular system, where preferably the parts may be assembled to either a vertical column or a foundation screw by use of at least one common part.

[0114] In one embodiment, the foundation system comprises:

[0115] - the bottom frame with a top face adapted to face away from the ground when in use, and

[0116] - one or more screws with the load transferring flange arranged between the upper end and the lower end, wherein the first outer threading is arranged at least in the lower end and is configured to be screwed into the ground, and wherein the load transferring flange is adapted to connect to the top face of the bottom frame and configured for transferring loads applied to the screw to the bottom frame.

[0117] Within the invention, it should be understood that, the screw may comprise an upper end and a lower end. When used in a foundation system, the upper end may be arranged at least partially above the bottom frame and the lower end may be arranged at least partially in the ground for anchoring the bottom frame.

[0118] The screws are screw into the soil of the ground and thereby anchoring or fixing the bottom frame to the ground.

[0119] The screw is particularly, but not exclusively, advantageous for fixing the bottom frame to the ground and thus preventing buoyancy or lifting. Buoyancy or lifting may be caused by a high water-table and can be prevented by anchoring the bottom frame to the ground.

[0120] Le. the load transferred to the bottom frame from the screw may be caused by the force which the screw enforces onto the bottom frame because of the screw being anchored to the ground opposing the forces of buoyancy or lifting of a construction mounted to the foundation system.

[0121] In one aspect, the load transferring flange may be the upper end arranged in contact with the top face of the bottom frame and configured for transferring loads to the bottom frame.

[0122] The load transferring flange may be larger than the cutout in the bottom frame to ensure the bottom frame is anchored to the ground. The load transferring flange may have any advantageous shape, such as being shaped like a washer or comprising arms, such as three, four, five, six, or seven arms extending substantially perpendicularly from the screw.

[0123] The load transferring flange may preferably be welded on the screw, however any suitable process may be used both during manufacturing of the screw, such as casting together with the screw or during hot or cold forming processes, or as a step postmanufacturing. In another embodiment, the load transferring flange may be arranged in contact with the bottom face of the bottom frame.

[0124] The load transferring flange is particularly, but not exclusively advantageous for providing sideways stability of the bottom frame when anchored in the ground.

[0125] The load transferring flange is particularly, but not exclusively advantageous for anchoring the bottom frame to the ground. The screw may be inserted though the cutout with the load transferring flange being larger than the cutout.

[0126] Alternatively, the screw may be inserted in the ground next to the bottom frame such that the load transferring flange is at least partially covering the top face and / or the bottom face of the bottom frame, thus fixing the bottom frame to the ground.

[0127] The load transferring flange may comprise a click system to achieve a load bearing frame configured to be fixed to the bottom frame in both up and downwards directions.

[0128] In yet another embodiment, the load bearing frame or the bottom frame may comprise a locking pin interacting with the bottom frame or the load bearing frame, respectively to achieve a fastening securing against rotational movements between the screw and the bottom frame.

[0129] In one embodiment of the invention, the foundation system comprises a height adjustable bearing pile at the upper end.

[0130] In one embodiment of the invention, the foundation system comprises a plurality of vertical columns with an upper end and a lower end attached to the bottom frame, wherein one or more of the cutouts are adapted for attachment of the vertical columns.

[0131] In one embodiment of the foundation system, the cutouts in the bottom frame comprise a complementary threading to the screw threading, so that the screws are attached to the bottom frame by a threaded connection.

[0132] In one embodiment of the foundation system, the bottom frame comprises a plurality of bottom frame pieces adapted for being assembled into one coherent bottom frame. In one embodiment, the foundation system comprises a top frame adapted for being arranged on the upper end of the screws or the columns. Preferably, the top frame comprises a plurality of top frame pieces adapted for being collected into one coherent bottom frame.

[0133] In one embodiment, the foundation system comprises a plurality of brackets, such as fittings or mounting, adapted for being arranged on the upper end of the screw and / or vertical columns.

[0134] The height adjustable bearing pile may be an extension of the screw, extending from the load transferring flange.

[0135] The embodiment is particularly, but not exclusively advantageous for providing a foundation where the bearing pile of the screw are height-adjustable relative to the bottom frame to achieve the tolerances necessary for use on a building site. The final height may be adjusted at different stages of achieving the foundation system.

[0136] In one embodiment of the invention, the foundation system may comprise a plurality of vertical columns attached to the bottom frame, wherein the bottom frame comprises at least one cutout, preferably a plurality of cutouts, said cutout being adapted for attachment of a vertical column.

[0137] The invention is particularly, but not exclusively, advantageous for providing a foundation system, which is easy to produce and manufacture, easy to handle on the construction site and easy to install and establish in the ground. Furthermore, the system is, compared to other foundation systems, decreasing the CO2 emission and reduce waste materials and thereby optimizing the material use in a construction process.

[0138] Moreover, the foundation is at least partly based on a system with prefabricated elements, which is a great advantage compared to known alternatives, since the elements are ready for use immediately after the elements are provided on the construction site. The prefabricated elements also provide the possibility of using the elements without any challenges or extended building process at any times of the year, thereby not being dependent on the season. Additionally, the foundation system is scalable and can equally be used for smaller constructions, such as family houses, and / or it can be used for larger construction, such as high-rise buildings.

[0139] In one embodiment, one or more of the vertical columns may be a screw. The foundation system may comprise of any combination of screws, vertical columns, screws acting as columns, screws acting as anchors, or screws acting as columns and anchors.

[0140] Use of at least the bottom frame and the vertical columns and / or the screws, preferably also a top frame, for a bearing foundation.

[0141] One objective may be achieved by a method of performing foundation for an associated building, wherein said method comprises the steps of:

[0142] - optionally, excavating in the ground an excavation for foundation, such as excavating an edge corresponding to at least the outer walls of an associated building,

[0143] - arranging a bottom frame on the ground, optionally in the excavation in the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame, and

[0144] - attaching a plurality of vertical columns to the bottom frame, preferably into cutouts of the bottom frame, and / or

[0145] - attaching a plurality of screws to the bottom frame, preferably into cutouts of the bottom frame, wherein the vertical columns and / or the screws comprise a load transferring flange. The load transferring flange is arranged in contact with the bottom frame and is configured to transfer load from the screws and / or vertical columns to the bottom frame in a direction towards the ground, wherein the steps of the method can be executed in any order and / or executed simultaneously.

[0146] The invention further relates to a method for performing foundation for an associated building, wherein said method comprises the steps of:

[0147] - excavating in the ground an excavation for foundation, such as excavating an edge corresponding to at least the outer walls of a building,

[0148] - arranging a bottom frame in the excavation in the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame, and - attaching a plurality of vertical columns to the bottom frame, preferably into cutouts of the bottom frame, wherein the steps of the method can be executed in any order and / or executed simultaneously.

[0149] The invention further relates to a method of performing foundation for an associated building with a foundation system according to any of the previously described embodiments. The method comprises the steps of:

[0150] - excavating in the ground an excavation for foundation, such as excavating an edge corresponding to at least the outer walls of an associated building,

[0151] - arranging a bottom frame in the excavation in the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame, and

[0152] - attaching a plurality of screws to the bottom frame, preferably into cutouts of the bottom frame, wherein the load transferring flange is arranged in contact with the bottom frame and the screw is screwed into the ground for anchoring the bottom frame to the ground,

[0153] The steps of the method can be executed in any order and / or executed simultaneously.

[0154] The invention further relates to a method for performing foundation for an associated building, wherein said method comprises the steps of:

[0155] - excavating in the ground an excavation for foundation, such as excavating an edge corresponding to at least the outer walls of a building,

[0156] - arranging a bottom frame in the excavation in the ground, preferably collecting a plurality of bottom frame pieces into one collected bottom frame, and

[0157] - attaching a plurality of screws to the bottom frame, preferably into cutouts of the bottom frame, wherein the load transferring flange is configured for anchoring the bottom frame to the ground, wherein the steps of the method can be executed in any order and / or executed simultaneously.

[0158] In one embodiment of the invention, the method may further comprise the step of attaching a plurality of vertical columns to the bottom frame, preferably into cutouts of the bottom frame.

[0159] The methods are particularly, but not exclusively, advantageous for providing a foundation method being easy and rapid to perform, while being extremely efficient and reliable. Furthermore, the method of foundation is compared to other foundation methods decreasing the CO2 emission and reduce waste materials and thereby optimizing the material use in a construction process.

[0160] In one embodiment of the invention, the method may further comprise the step of attaching a plurality of vertical columns to the bottom frame, preferably into cutouts of the bottom frame, and wherein one or more of the vertical columns is a screw.

[0161] In one embodiment of the method, the screw comprises an upper end, a lower end with a threading, with the load transferring flange arranged at the upper end or between the upper and the lower end. The lower end of the screw is screwed into the ground for anchoring the bottom frame to the ground.

[0162] In one embodiment of the method, the screw comprises a height adjustable bearing pile at the upper end, and wherein the method further comprises the steps of:

[0163] - adjusting the height (H) of the bearing piles, preferably by a thread arrangement of the bearing pile, and

[0164] - levelling the bearing piles by ensuring an upper end or a top portion of the bearing piles is at the same level.

[0165] In one embodiment, the method further comprises the steps of casting concrete into the bottom part of the excavation thereby casting the screws into the bottom frame with the bearing pile extending upwards from the casted concrete.

[0166] In general, the steps of the methods can be executed in any order and / or executed simultaneously.

[0167] In one embodiment of the invention, the method further comprises the steps of:

[0168] - providing screws comprising a height adjustable bearing pile,

[0169] - adjusting the height of the bearing pile, preferably by a thread arrangement of the bearing pile,

[0170] - levelling the bearing piles by ensuring the upper end of the vertical columns is in the same level, and - casting concrete into the bottom part of the excavation (EX) thereby casting the screws into the bottom frame with the bearing pile extending upwards from the casted concrete, wherein the steps of the method can be executed in any order and / or executed simultaneously.

[0171] The method may comprise additional steps of:

[0172] - providing vertical columns being casting moulds,

[0173] - adjusting the height of the casting moulds, preferably by a thread arrangement of the columns,

[0174] - leveling the vertical columns by ensuring the upper end or a top portion of the columns is in the same level, and

[0175] - casting concrete into the vertical concaved columns, wherein the steps of the method can be executed in any order and / or executed simultaneously.

[0176] The embodiment is particularly, but not exclusively, advantageous for providing a method that provides a foundation with the highest possible accuracy.

[0177] Within the invention, “Ievelling7”levelled” or the like may be understood as being horizontal in level.

[0178] In one embodiment of the invention the method further comprises the step of:

[0179] - arranging of a top frame on the levelled bearing piles and / or vertical columns, and / or

[0180] - arranging of brackets, such as fittings or mounting, on the levelled vertical columns and / or levelled bearing piles, and

[0181] - if necessary, re-levelling the bearing piles and / or vertical columns by ensuring the top frame are at least substantially horizontal or the brackets are at least substantially levelled.

[0182] In one embodiment of the invention the method further comprises the step of:

[0183] - arranging technical installations into the excavation in the ground, such as, cooling / heating pipes, ventilation, and the like, and / or

[0184] - filling the excavation, such as filling with soil, sand, concrete, waste materials or the like. The first and second aspects of the present invention may each be combined with any of the other aspects. These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.

[0185] Embodiments from the system / product should be seen as applicable to the method, and embodiments from the method should be seen as applicable for the product / sys- tem.

[0186] DESCRIPTION OF THE DRAWING

[0187] Various examples are described hereinafter with reference to the figures. Like reference numerals refer to like elements throughout. Like elements will, thus, not be described in detail with respect to the description of each figure. It should also be noted that the figures are only intended to facilitate the description of the examples. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated example need not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular example is not necessarily limited to that example and can be practiced in any other examples even if not so illustrated, or if not so explicitly described.

[0188] Exemplary embodiments of the invention are described in the figures, whereon: Figure 1 illustrates a 3D drawing of a foundation system with a bottom frame and vertical columns attached to the frame.

[0189] Figure 2 illustrates a 3D drawing of a foundation system with a partly attached top frame.

[0190] Figure 3 illustrates a 3D drawing of a foundation system with a top frame.

[0191] Figure 4 illustrates a 3D drawing of a foundation system with no top frame and vertical columns screwed into the solid and / or the bottom frame through the bottom frame. Figures 5a-b illustrate an edge excavation in the ground.

[0192] Figure 6 illustrates a bottom frame with cutouts and protruding reinforcement.

[0193] Figure 7 illustrates a bottom frame with vertical columns attached.

[0194] Figure 8 illustrates vertical columns with a top portion.

[0195] Figure 9 illustrates a foundation system with an attached top frame.

[0196] Figure 10 illustrates casting of concrete in the vertical columns.

[0197] Figures 11 a-b illustrate an attachable top portion of the vertical column. Figure 12 illustrates a cast vertical column.

[0198] Figure 13 illustrates a top- or bottom frame piece with reinforcement.

[0199] Figure 14 illustrates a corner frame piece and one side of a frame with corner pieces. Figures 15 and 16 illustrate one embodiment of the system with different types of columns.

[0200] Figure 17 illustrates one embodiment of the foundation system of figure 15 with a top frame.

[0201] Figures 18 and 19 illustrate one embodiment of the foundation system with screws.

[0202] Figures 20 and 21 illustrate the foundation system of figure 18 with different types of screws.

[0203] Figure 22 illustrates one embodiment of the bottom frame pieces with a combination of screws and vertical columns.

[0204] Figure 23 illustrates one embodiment of the foundation system with a top frame.

[0205] Figure 24 illustrates a top or bottom frame of the foundation system of figure 23 during manufacturing.

[0206] Figures 25 and 26 illustrate two embodiments of means for rotational fastening.

[0207] Figures 27 and 28 illustrate embodiments of a foundation system with a top frame, bottom frame and vertical columns as single piece casts.

[0208] Figures 29 to 34 illustrate one embodiment of a foundation system with bottom frame pieces, vertical columns and top frame pieces.

[0209] Figures 35 illustrates one embodiment of a foundation system with bottom frame pieces, vertical columns and a screw.

[0210] Figure 36 illustrates the embodiment of figure 35 with a bearing pile.

[0211] Figure 37 illustrates a traditional frame foundation versus one embodiment of the foundation system of the invention with a top and bottom frame, vertical column and a screw.

[0212] Figure 38 illustrates one embodiment of a foundation system with side stabilizing means.

[0213] Figure 39 illustrates one embodiment of a shielded foundation system.

[0214] DETAILED DESCRIPTION OF THE INVENTION

[0215] Exemplary examples will now be described more fully hereinafter with reference to the accompanying drawings. In this regard, the present examples may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the examples are merely described below, by referring to the figures, to explain aspects. Throughout the specification, when an element is referred to as being “connected” to another element, the element is “directly connected” to the other element, “electrically connected”, “fluidic connected” or “communicatively connected” to the other element with one or more intervening elements interposed there between.

[0216] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting. As used herein, the terms “comprises" "comprising" "includes" and / or "including" when used in this specification specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0217] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this invention pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in the present specification.

[0218] FIG. 1 illustrates a foundation system 100 arranged in an excavation EX in the ground. The bottom frame 200 is arranged directly in the ground at the lower surface 220 of frame and on / through the upper surface 230 of the bottom frame 200 a plurality of vertical columns 300 are attached.

[0219] In a preferred embodiment the bottom frame 200 comprises a plurality of cutouts 210 (not directly shown), said cutout 210 being adapted for attachment of a vertical column 300.

[0220] The number of vertical columns 300 in the system should not be seen as a limitation to the invention. The number of vertical columns 300 depends on the construc- tion / building that the foundation system 100 is calculated to perform as a foundation for. The higher strength requirements, the more vertical columns 300.

[0221] FIG. 2 illustrates a 3D drawing of a foundation system 100 with a partly attached top frame 500. The top frame is adapted for being arranged on the upper end 310 or the top portion 400 of the vertical columns 300. Within the invention, the top frame 500 can be made in one coherent piece, however it is preferred that said top frame 500 is comprising a plurality of top frame pieces 550 adapted for being collected into one coherent top frame 500.

[0222] The same principle applies to the bottom frame 200, such that bottom frame 200 can be made in one coherent piece, however it is preferred, that the bottom frame 200 is comprising a plurality of bottom frame pieces 250 adapted for being collected into one coherent bottom frame 200.

[0223] FIG. 3 illustrates a 3D drawing of a foundation system with a top frame 500 being collected of a plurality of top frame pieces 550 into one coherent top frame 500.

[0224] As illustrated in FIG. 2 it is preferred that the top frame 500, as well as the bottom frame 200, comprises cutouts 210, 510 for attachment of vertical columns 300.

[0225] FIG. 4 illustrates a 3D drawing of a foundation system 100 with no top frame. The vertical columns 300 are screwed into the ground and / or the bottom frame through the bottom frame 200.

[0226] The vertical columns are preferably attached to the bottom frame by a threading on the column and a threading in the cutouts 210.

[0227] The illustrated embodiment is an alternative to the embodiment comprising a top frame 500 as illustrated in FIG. 2 and 3. The vertical columns are made with an upper end 310 being suitable for receiving and carrying the weight from the associated building built upon the foundation system 100.

[0228] As illustrated in FIG: 4, it is preferred that the upper end 310 of the vertical columns 300 comprises an at least substantially flat surface.

[0229] FIG. 4 furthermore illustrates an embodiment of the invention wherein the vertical columns 300 are introduced into the ground through cutouts 250 of the bottom frame 200. The vertical columns 300 may be screwed or piled into the ground or by any other suitable method.

[0230] FIG. 5a-b illustrate an edge excavation EX in the ground. The edge excavation EX is suitable for having a foundation system 100 according to the invention arranged into it.

[0231] FIG. 6 illustrates a bottom frame 200 arranged at the bottom surface of an excavation EX in the ground. The bottom frame 200 comprises cutouts 210, and in the highlighted part of FIG. 6, the cutout 210 comprises protruding reinforcement 700 through the aperture of the cutout 210. The protruding reinforcement 700 through the cutout 210 is a preferred embodiment wherein the vertical columns 300 are adapted for being casting moulds. When the casting mould is arranged on or attached to the bottom frame 200 it is surrounding the protruding reinforcement 700, and when the mould is casted with concrete, the protruding reinforcement 700 will thereby perform as reinforcement to concrete casted columns 300.

[0232] The reinforcement 700 may by arranged through one, through some or through all the cutouts 210 depending on the need of strength requirements of the foundation system.

[0233] FIG. 7 illustrates a bottom frame 200 with vertical columns 300 attached. The upper end 310 of columns 300 comprises no top portion.

[0234] FIG. 8 illustrates vertical columns 300 with a top portion 400 arranged at the upper end 310 of the columns 300. The top portion 400 allows the vertical columns 300 being adjustable in the height H. This adjustment allows the foundation system 100 to accomplish an accurate leveling of the columns 300.

[0235] FIG. 9 illustrates a foundation system 100 with an attached top frame 500 and vertical columns 300 being concaved such that the foundation system 100 is arranged for casting of concrete into the columns 300.

[0236] FIG. 10 illustrates casting of concrete in the vertical columns 300. The arrows illustrate where the concrete is preferred to be filled in. Thereby the casting of concrete in FIG. 10 is performed through the cutout 510 of the top frame 500 and lead into the vertical columns 300, which are acting as casting moulds.

[0237] It should be understood that within the invention, the casting of concrete may also be made directly into concaved vertical columns 300 adapted for being casting mould, since the invention comprises embodiments, wherein the top frame 500 is not required.

[0238] Furthermore, in FIG. 10 it is illustrated that the vertical columns 300 when adapted for being casting mould may be removed when the casted concrete is dried. The casting mould 300 may be made of recycled material, and / or plastic, such as RPET or PVC. However, is should be understood that the casting mould 300 may be made of dissolvable material and thereby will dissolve itself over time. Moreover, it should be understood that the vertical columns 300 may also be prefabricated (not shown) and being made of concrete, preferably with reinforcement.

[0239] FIG. 11 a-b illustrate an attachable top portion 400 of the vertical column 300. The top portion 400 is adapted for providing a vertical column 300 being adjustable in the height H in a longitudinal direction LD. The top portion 400 may be shaped in various shapes and sizes and the embodiment illustrated in FIG. 1 1 a-b should not be seen as limiting to the invention, though it is a preferred embodiment.

[0240] The adjustment of the height H is preferably made through a thread arrangement 410 (not directly shown). However, the adjustment is not within the invention limited to a thread arrangement 410.

[0241] FIG. 12 illustrates a casted vertical column 300.

[0242] The column 300 illustrated may be prefabricated or be casted onsite (in situ).

[0243] FIG. 13 illustrates a top frame piece 550 or a bottom frame piece 250 with reinforcement 700.

[0244] The bottom frame 200 and / or top frame 500 of the foundation system 100 may be made as one coherent frame or may be collected from a plurality of frame pieces 250, 550.

[0245] It is within the invention preferred that the frame(s) are collected of a plurality of pieces 250, 550 since this embodiment makes the frames adjustable according to the excavation EX in the ground. The size and shape of the excavation EX is predefined from the engineering calculations, however, there may be small variations in the calculated size of the excavation and the actual onsite performed excavation. It may therefore be a great advantage that the frame(s) may be varied in the size on the construction site, when the excavation is made.

[0246] Also, a frame system made by pieces is way more straightforward to transport from production / storage to the construction site and moreover a lot easier to handle onsite.

[0247] In FIG. 13 a preferred embodiment is illustrated. In this embodiment reinforcement 700 is arranged in the bottom frame 200 and / or the top frame 500 along the length direction of the frame(s). Within the invention the reinforcement can be provided along the entire length or only provided along part of the length.

[0248] Moreover, it is illustrated that the coupling of two frame pieces 250, 550 is made at a cutout 250, 550, such that the end of a first frame pieces is a half cutout adapted to be collected to a second frame piece with a matching half cutout, such that when connecting the two frame pieces the two half cutouts are made into one complete cutout. In FIG. 14A a preferred embodiment is illustrated for a frame piece 250, 550 being a corner piece, here illustrated as seen from a top view with three cutouts 210. The cutouts may be adapted with a threading for accommodating a screw being a bearing column, an anchoring screw or a combination. In Fig 14B an embodiment of one side of a frame is illustrated using corner section at the corners but also along the length of the foundation for improved sideway stability.

[0249] In FIG. 15 a preferred embodiment is illustrated. In this embodiment the system comprises a combination of different types of columns e.g. cast columns and screws.

[0250] The bottom frame 200 or frame pieces 250, is arranged directly on or in the ground with a plurality of vertical columns 300 being attached to cutouts 210 in the frame, regardless of the type of column.

[0251] In the illustrated preferred embodiment, the foundation system also includes screws arranged in cutouts, where the screws are configured as anchoring piles, or configured as both anchoring piles and bearing piles i.e. as anchoring piles and columns.

[0252] Figure 16 illustrates the foundation system of figure 15 seen from an end perspective looking in at a screw.

[0253] FIG. 17 illustrates the embodiment illustrated in figure 15 with an attached top frame 500 e.g. as frame pieces 550.

[0254] In figure 18 a preferred embodiment is illustrated of the foundation system 100 comprising screws. The screws are inserted into the cutouts 210 of the bottom frame piece 250 of the bottom frame 200. The screws comprise a load transferring flange 350 arranged above the cutout 210 providing sideways stability when anchoring the bottom frame 200 to the ground. The screws comprise an upper end 310 extending above the bottom frame and a lower end 320 extending below the bottom frame 200.

[0255] The screw on the left comprises height adjustable bearing pile 360 which enable the screw to act as a height adjustable vertical column. The screw on the right does not comprise a bearing pile or a height adjustable bearing pile and therefore only act as an anchor for fixing the bottom frame to the ground. Figure 19 illustrates the foundation system of figure 18. The screw on the left is seen in a perspective wherein a screw comprising load transferring flange 350 and a bearing pile 360. The screw is inserted into a bottom frame part 250 of a bottom frame 200. The screw on the right illustrates the screw on the left inserted into the ground in an excavation EX.

[0256] Figure 20 and 21 illustrate the foundation system of figure 18 with different types of screws.

[0257] Figure 20 illustrates four different variations of screws including two variations of the load transferring flange 350, two screws comprising a height adjustable bearing pile 360, one screw comprising a fixed bearing pile, and one screw without a bearing pile.

[0258] Figure 21 illustrates six variations of the height adjustable bearing pile 360, including threaded variations and clamping variations. The load bearing flanges 350 are illustrated in direct connection with the top face 201 of the bottom frame.

[0259] Figure 22 illustrates one embodiment of the bottom frame pieces with a combination of screws and vertical columns 300. The lower end 320 of the screws are in the ground such that the screws are anchoring the bottom frame 200 and thus provide additional sideways stability. The screws anchoring the bottom frame 200 are arranged such that they do not align with the placement of the vertical columns 300, which further increases the sideways stability of the bottom frame 200.

[0260] Figure 23 illustrates one embodiment of the foundation system with a top frame 500,550, a bottom frame 200,250, and vertical columns 300. The top frame 500 and the bottom frame 200 can have the same dimensions or different dimensions. In the illustrated embodiment, the top frame 500 is wider that the bottom frame 200. The bottom frame 200 may be dimensioned according to the ground and ground conditions. The top frame may be dimensioned according to desired wall thickness, weight, number of columns.

[0261] Figure 24 illustrates a top or bottom frame of the foundation system of figure 23 during manufacturing. The bottom frame 200 and / or top frame 500 comprises an encapsuled reinforcement. The cutouts are achieved by an embedded material used for fixing the reinforcement before casting the frame 200,300. The embedded material may be polystyrene or a recycled material. 1

[0262] After casting the frame 200, 300, the embedded material may give access to the reinforcement either by removing the embedded material or by screwing screws into the embedded material. When using the vertical columns as casting moulds, if the embedded material is removed prior to casting into the vertical columns, a strong connection between the bottom frame and the casted columns is achieved. Further, by removing the embedded material, the screw may be fixed to the reinforcement to achieve a strong connection.

[0263] The embedded material may enable cutouts to be used to access the reinforcement at a later stage in the lifetime of the foundation to achieve a sustainable circular foundation.

[0264] The embedded material may achieve a foundation using 60-80% less material and / or CO2 compared to a traditional foundation for a standard house.

[0265] Figures 25 and 26 illustrates two embodiments of the foundation system with a fastening securing against rotational movements of the screw relative to the bottom frame. Both embodiments include a locking pin interacting with both the bottom frame and the loadbearing flange. The locking pin may be comprised in the bottom frame or the loadbearing flange. These examples are merely meant as such, and thus implementing other locking means for securing against rotational movement may be beneficial.

[0266] Although the present invention has been described in connection with the specified embodiments, it should not be construed as being in any way limited to the presented examples. The scope of the present invention is set out by the accompanying claim set. In the context of the claims, the terms "comprising" or "comprises" do not exclude other possible elements or steps. Also, the mentioning of references such as "a" or "an" etc. should not be construed as excluding a plurality. The use of reference signs in the claims with respect to elements indicated in the figures shall also not be construed as limiting the scope of the invention. Furthermore, individual features mentioned in different claims, may possibly be advantageously combined, and the mentioning of these features in different claims does not exclude that a combination of features is possible and advantageous.

[0267] Figures 27 and 28 illustrate different embodiments of the foundation system. Figure 28A illustrates one embodiment also illustrated in figure 27 with a top frame, bottom frame and vertical columns as single piece casts. In this embodiment the top frame and the bottom frame both comprise thoroughgoing cutouts, where the diameter of the top frame cutout has a larger diameter than the bottom frame cutout allowing for the load transferring flange of the screw to pass through the top frame to anchor the single piece cast to the ground by the interaction of the load transferring flange with the bottom frame.

[0268] On the contrary, figure 28B illustrates another embodiment also illustrated in figure 27 with bottom frame of a shape providing a throughgoing cavity for receiving the screw where the load transferring flange is in contact with the bottom frame and the screw is anchored to the ground through the cavity.

[0269] Figures 29 to 34 illustrate one embodiment of a foundation system with bottom frame pieces, vertical columns and top frame pieces. In the illustrated embodiment, the bottom frame piece 250 are designed with alignment parts for easy assemble, e.g. by use of a fastener for final mounting (fig. 30). The vertical columns 300 are attached to the bottom frame in the cutouts, here by use of fasteners (fig. 31 ). The vertical columns comprise load transferring flanges 350 in the upper end and in the lower end. Two top frame pieces 550 are then mounted onto the vertical columns, again using fasteners (fig. 33) and sealing elements (fig. 34).

[0270] Figure 35 illustrates one embodiment of a foundation system with a bottom frame 200 of three bottom frame pieces, two vertical columns and a screw for anchoring in the ground. The bottom pieces and the vertical columns are comparable to the embodiment illustrated in figs. 29-34. The screw 302 is arranged in a throughgoing cutout with the load transferring flange 350 connected to the bottom frame for transferring load from the screw to the bottom frame in a direction towards the ground. The part of the screw with the first outer treading is arranged on the opposite side of the bottom frame to the load transferring flange for anchoring the bottom frame to the ground. In the illustrated embodiment the screw is mounted to the bottom frame using fasteners.

[0271] The screw illustrates a first part of a kit for a screw with a bearing pile being the second part of the kit.

[0272] The screw illustrates a first part of a kit for a screw with a bearing pile being the second part of the kit. As illustrated in the cut-out in figure 35, a part of the screw extends beyond the load transferring flange in a direction away from the bottom frame, this part comprises an inner threading, which may be adapted for receiving the bearing pile. Figure 36 illustrates the embodiment of figure 35 with a bearing pile. The screw 301 with the being pile 306 is formed by a kit comprising a first and a second part.

[0273] Figure 37 illustrates a traditional cast concrete frame foundation versus one embodi- ment of the foundation system of the invention with a top frame, bottom frame 200, and a screw 301 with a bearing pile 360.

[0274] Figure 38 illustrates one embodiment of the foundation system with side stabilizing means, such as cross members, cross-arms, cross brace, cross bands arranged be- tween the top of a bearing pile 360 and the bottom frame. Alternatively, the foundation system could be with a vertical column instead of the bearing pile.

[0275] Figure 39 illustrates one embodiment of a shielded foundation system. Here a shiled is mounted on the top frame 500 and extends substantially along the vertical column 300 (alternatively, the bearing pile) in a direction towards the bottom frame 200. The shield may be a steel plate, a wire netting or alternative solutions and may beneficially be used to prevent rodents from entering the foundation. Alternatively for insulation purposes.

Claims

CLAIMS1 . A foundation system (100) for an associated building, said system comprising a bottom frame (200) adapted for being arranged on the ground, and further comprising:- one or more vertical columns (300) configured to be attached to the bottom frame (200), said vertical columns comprising a load transferring flange (350), and / or- one or more screws (301 ) comprising at least one outer threading, an upper end, a lower end, and a load transferring flange (350) arranged at the upper end or between the upper end and the lower end, wherein the bottom frame (200) comprises at least one cutout (210), preferably a plurality of cutouts, said cutouts being adapted for:- attachment of the one or more vertical columns (300), and / or receiving the one or more screws (301 ), wherein the load transferring flanges (350) are arranged in connection with the bottom frame and configured to transfer load from the screws and / or columns to the bottom frame in a direction towards the ground.

2. The foundation system according to claim 1 wherein the bottom frame (200) is adapted for being arranged on the ground in an associated excavation (EX), such as in an edge excavation.

3. The foundation system (100) according to any one or more of the preceding claims, wherein the screws (301 ) and / or the vertical columns (300) comprises an outer threading and the cutouts (210) in the bottom frame (200) comprises a complementary threading, so that the screws and / or vertical columns are attached to the bottom frame by a threaded connection.

4. The foundation system according to any one or more of the preceding claims, wherein the cutouts adapted for receiving the screw(s) are throughgoing cutouts and the foundation screw(s) is configured to be arranged through the cutouts with the load transferring flange arranged on one side of the bottom frame and a threaded part in the ground.

5. The foundation system (100) according to any one or more of the preceding claims, wherein the vertical columns (300) comprise an upper end (310) and a lower end (320), said columns being:- adapted for being casting moulds for at least concrete, and- adapted for being attached to said cutouts (210) of the bottom frame (200) at the lower end (320), preferably so that the vertical columns (300) are attached to the bottom frame (200) by casting.

6. The foundation system (100) according to any one of the preceding claims, wherein the vertical columns (300) comprise a top portion (400) adapted for providing a vertical column (300) being adjustable in the height (H) in a longitudinal direction (LD).

7. A foundation system (100) according to any of the preceding claims, wherein the vertical columns (300) comprise a top portion (400), said top portion:- being attachable and detachable to the upper end (310) of the vertical columns (300), and / or- comprising a thread arrangement (410) for allowing the adjustment of the height of the columns.

8. A foundation system (100) according to any of the preceding claims, wherein said bottom frame (200) comprises:- a plurality of bottom frame pieces (250) adapted for being assembled into one coherent bottom frame (200).

9. The foundation system (100) according to any of the preceding claims, comprising a top frame (500) adapted for being arranged on the upper end (310) or the top portion (400) of the vertical columns (300), preferably said top frame (500) comprising a plurality of top frame pieces (550) adapted for being collected into one coherent bottom frame (500).

10. The foundation system (100) according to any of the preceding claims, comprising a plurality of brackets, such as fittings or mounting, adapted for being arranged on the upper end (310) of the vertical columns (300) or on the top portion (400).11 . The foundation system (100) according to any of the preceding claims, wherein the screw (301 ) comprises a height adjustable bearing pile (360) at the upper end.

12. A foundation system (100) according to any of the preceding claims, wherein said bottom frame (200) comprises:- a plurality of bottom frame pieces (250) adapted for being assembled into one coherent bottom frame (200).

13. The foundation system (100) according to any of the preceding claims, comprising a top frame (500) adapted for being arranged on the upper end (310) of the screws (301 ) or the vertical columns, preferably said top frame (500) comprising a plurality of top frame pieces (550) adapted for being collected into one coherent top frame (500).

14. The foundation system (100) according to any of the preceding claims, comprising a plurality of brackets, such as fittings or mounting, adapted for being arranged on the upper end (310) of the screws (301 ) and / or vertical columns (300).

15. The foundation system (100) according to any of the preceding claims, comprising a kit for assembly into a screw (301 ) and / or vertical column (300), wherein the kit comprises at least- a first part comprising the load transferring flange (350) and- a second part, wherein the first or second part comprises an opening for receiving the second or first part.

16. A method of performing foundation for an associated building, preferably with a foundation system (100) according to any of claim 1 -15, wherein said method comprises the steps of:- optionally, excavating in the ground an excavation (EX) for foundation, such as excavating an edge corresponding to at least the outer walls of an associated building,- arranging a bottom frame (200) on the ground, optionally in the excavation in the ground, preferably collecting a plurality of bottom frame pieces (250) into one collected bottom frame (200), and- attaching a plurality of vertical columns (300) to the bottom frame (200), preferably into cutouts (210) in the bottom frame (200), and / or- attaching a plurality of screws (301 ) to the bottom frame (200), preferably into cutouts (210) in the bottom frame (200),wherein the vertical columns (300) and / or the screws (301 ) comprise a load transferring flange (350), which load transferring flange is arranged connected to the bottom frame (200) and configured to transfer load from the foundation screws and / or vertical columns to the bottom frame in a direction towards the ground, wherein the steps of the method can be executed in any order and / or executed simultaneously.

17. The method according to claim 16, wherein the screws (301 ) comprise an upper end, a lower end with a threading, with the load transferring flange (350) arranged at the upper end or between the upper and the lower end, and where the lower end of the foundation screw is screwed into the ground for anchoring the bottom frame to the ground.

18. The method according to claim 16 or 17, wherein the screw (301 ) comprises a height adjustable bearing pile (360) at the upper end, and wherein the method further comprises the steps of:- adjusting the height (H) of the bearing piles, preferably by a threaded arrangement (410) of the bearing pile (360), and- levelling the bearing piles by ensuring an upper end or a top portion of the bearing piles is at the same level.

19. The method according to claim 18, wherein the method further comprises the step of:- casting concrete into the bottom part of the excavation (EX) thereby casting the screws into the bottom frame (200) with the bearing pile (360) extending upwards from the casted concrete, wherein the steps of the method can be executed in any order and / or executed simultaneously.

20. The method according to any one or more of claims 16-19, wherein the method further comprises the steps of:- providing vertical columns (300) being casting moulds,- adjusting the height (H) of the casting moulds, preferably by a thread arrangement (410) of the columns,- levelling the vertical columns (300) by ensuring an upper end (310) or a top portion (400) of the vertical columns (300) is at the same level, and- casting concrete into the vertical columns (300),wherein the steps of the method can be executed in any order and / or executed simultaneously.

21. The method according to any one or more of claims 18-20, wherein the method further comprises the step of:- arranging of a top frame (500) on the levelled vertical columns (300) and / or levelled bearing piles, and / or- arranging of brackets (600), such as fittings or mounting, on the levelled vertical columns (300) and / or levelled bearing piles, and if necessary, re-levelling the vertical columns (300) by:- ensuring the top frame (500) are at least substantially levelled, or- ensuring the brackets (600) are at least substantially levelled.

22. The method according to any one of claims 16-21 , wherein the method further comprises the step of attaching a plurality of vertical columns (300), according to any of claims 5-9, to the bottom frame (200), preferably into cutouts (210) of the bottom frame (200), and wherein one or more of the vertical columns (300) is a screw.

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