WO2020164660A1

WO2020164660A1 - Construction section, structure and use of construction section and/or structure

Info

Publication number: WO2020164660A1
Application number: PCT/DE2020/100071
Authority: WO
Inventors: Christian Keindorf
Original assignee: Fachhochschule Kiel
Priority date: 2019-02-12
Filing date: 2020-02-05
Publication date: 2020-08-20
Also published as: DE102019103467A1

Abstract

The invention relates to a construction section comprising at least two curved and/or flat wall elements each having two longitudinal edges and two transverse edges, wherein: the wall elements have, on the longitudinal edges, a profiled portion with a cross section and at least two shaped pieces for connecting the wall elements by means of the longitudinal edges of the wall elements; each shaped piece has at least two receptacles each for receiving one longitudinal edge of the wall elements; the receptacle is formed with a cross section that geometrically complements the cross section of the profiled portion of the longitudinal edge of the wall element; and two wall elements are connected to one another by means of one or at least one shaped piece. The invention further relates to a structure and the use of the construction section and/or the structure.

Description

Construction section, structure and use of the construction section and / or structure

The invention relates to a construction section comprising at least two wall elements each with two longitudinal edges and two transverse edges, and connecting pieces for connecting the wall elements via their longitudinal edges, two wall elements being connected to one another via one or at least one molded piece, as well as a structure and the use of the construction section and / or of the structure.

The state of the art for the relevant forms of construction is presented, for example, in the publication DE 10 2011 054 567 A1, its content and correspondingly listed therein

Publications are hereby included. The previous connection techniques are also described in the literature sources cited therein.

From the publication DE 20 2005 010 139 U1, an antenna mast is known which is to be designed in at least two parts. The junction along the long edge of the

Hollow profile segments can be made positively by means of interlocking profile ends according to the tongue and groove principle. However, it does not describe how the segments should actually be produced, transported and assembled. In addition, it is not explained how the hollow profile segments are to be connected to one another at the transverse edges. The focus is on the geometry of the hollow profile segments, which are to be made of either plastic or aluminum. In contrast to this, other materials can be used with the present invention, the individual wall elements not being hollow profiles, but rather plate or shell segments.

The publication DE 20 2005 011 492 U1 describes a mast which has elements on the longitudinal edges that are based on the tongue and groove principle. For this type of mast or tower construction, too, only hollow profile segments are claimed. In contrast to this, other segment shapes than curved or planar wall elements can also be used with the present invention.

A modular tower structure is known from the document US 2009/0090069 A1, in which modules are delivered by truck and then assembled with a device to form a tower. The connections along the longitudinal edges of the partial shells are made with the aid of screws, the disadvantages of a flange connection or load-bearing bolts, which are state of the art here, are to be avoided

are assumed. The modular tower structure is intended to comprise a plurality of sections, the sections being formed from a plurality of segments. The vertical

Connection is intended to include an inner vertical friction plate which is positioned over a seam between adjacent segments and an outer vertical friction plate which is over the same seam is arranged. In contrast, no screws should be used along the longitudinal edges of the wall elements in the present invention. In addition, not only curved segments but flat segments are planned for the new modular principle.

The document US 2006/0213145 A1 describes tower constructions exclusively for wind turbines, the sections of which can have not only a cylindrical cross section but also a polygonal cross section. Steel is the only preferred material for the individual segments. The longitudinal edges of the segments have bores through which screws / bolts / pins can be inserted. In contrast to this, in the case of the present invention no screws / bolts / pins are required on the longitudinal edges of the wall elements, but shaped pieces and round bars. In addition, the tower construction has several radial struts on the end faces of the sections, which are not required in the present invention. In addition, the sections are not connected to one another using flanges and corner connectors as described in the present invention.

From the document US 2006/0000185 A1 a method for connecting two flanges, in particular flanges of segments of a pylon, is known. Both conventional, simply held flange connections are specified here, as well as interlocking, with segments here being intended to engage in one another like a hook, so that the segments do not inadvertently slip away from one another. However, segment joints must also be included here

Flange connections are still present at whatever point. In contrast, no flange connections are used along the longitudinal edges of the wall elements in the present invention. The geometry and functionality of the corner connector is also not listed in US 2006/0000185 A1.

From DE 10 2009 048 984 A1 it is known that several pipes for one section

put together to build a tower structure. However, it won't

describes the fasteners with which the longitudinal and transverse edges should be made. In addition, no polygon cross-sections are covered with flat wall elements above them.

In DE 11 2010 005 382 T5 a tower construction is used exclusively for

Wind turbines claimed that with their flat wall segments a

Forms polygonal cross-section per section. A connection element is described which is used between two adjacent wall segments. This connecting element should be able to enclose an angle of 10 ° to 70 ° together with the two wall segments. In contrast, the angled fitting of the present invention also allows smaller and larger included angles between the wall elements. In addition, DE 11 2010 005 382 T5 always provides that the connecting elements with the help of Screws / bolts / pins are connected along the longitudinal edges of the wall segments. In contrast to this, no screws / bolts / pins are required on the longitudinal edges of the wall elements in the present invention.

A tower is known from US Pat. No. 7,160,085 B2 which is composed of segments in such a way that it forms a polygonal cross section. In a further embodiment, the tower can also consist of round segments. The connection technology consists of horizontally running flanges. The longitudinal edges of the segments are stepped or wave-shaped, which does not correspond to the present invention. The butt joints of the segments are not comparable to the fittings, round bars and corner connectors of the present invention.

From DE 203 21 855 U1 a tower for a wind power plant is known, the

Tower sections can be in several parts, which are connected by means of flanges and screws along their longitudinal edges. In contrast to this, with the present invention, the flanges and screws on the longitudinal edges of the segments are avoided because fittings and round rods are to be used instead for form and force locking.

In addition, the present invention is not limited to steel towers with cylindrical or conical tower sections with curved segments, but also allows

Polygon cross-sections with flat wall elements made of other materials.

From US 2005/0166521 A1 tower constructions with cylindrical, conical or polygonal cross-sections are known, the segments of which via angle profiles along the

Long edges are to be connected. However, screws / bolts / pins must be used as connecting means, which are not required in the present invention. In addition, the angle profiles do not have any interlocking elements through whose form fit a power transmission could take place directly without screws. Furthermore, in the case of the present invention, no cross struts are required in the interior of the tower in order to hold or stabilize connecting elements in their position along the longitudinal edges.

DE 28 26 687 A1 describes a tubular construction unit with locked profiles on the longitudinal edges. The area of application is mainly to be seen in masts for sailing boats or as lamp masts. However, the first 12 claims are limited exclusively to tubular construction units, whereas the present invention also allows polygonal cross-sections that can be composed not only of curved partial shells but also of flat wall elements. In addition, the longitudinal edges of the partial shells do not have any round bars or fittings, as described in the present invention. The corner connector and the elements for the clamping device are also not the subject of patent DE 28 26 687 A1. Furthermore, with the present Invention does not require nozzles and plastics to be injected to produce the connections on the longitudinal edges of the segments.

From EP 1 717 452 A1 a connecting device for connecting two components is known, which is characterized by the fastening elements being plugged into one another or pushed one inside the other. The area of application is mainly in house and building construction. The connecting device consists of a receiving part and an insert part, which is inserted via a longitudinally extending slot-shaped opening and that between the receiving part and the insert part at least one locking element is provided for locking the insert part inserted into the receiving part at a predetermined position. In contrast, in the present invention, there is no

Locking element required. Also, no claims are made regarding the

Connection of the transverse edges provided, whereas the present invention presents a solution with the help of flanges and corner connectors. In addition, no procedures are described for transporting and assembling the components that would be required to ultimately obtain an assembled kit.

DE 10 2011 054 567 A1 describes a tower structure which can be used in particular as a support structure for antenna, telecommunications or wind energy systems. Such tower structures should be cylindrical and / or conical tubular, the tower sections in turn being constructed with segment-like elements. in the

In contrast to this, the present invention enables not only the use of partial shells, but also flat wall elements for the assembly of a section. Because of this, not only tubular, but also polygonal cross-sectional shapes can be produced for a section. Furthermore, in DE 10 2011 054 567 A1 no angled fittings are recorded, so that only fittings with a bevel angle of 0 ° would represent a match. The present invention also shows solutions as to how the sections can be non-positively connected to one another at the transverse edges, for which corner connectors were developed. The corner connectors take on a further function in the context of assembly, namely the inclusion of a clamping device, which is in the

DE 10 2011 054 567 A1 is not included. In addition, the tensioning device developed is not only able to insert a single shaped piece between the wall elements via a rope or a pull rod, but also represents a solution with which several

Moldings can be pushed between the wall elements at the same time.

When dimensioning conventional tubular steel towers for wind turbines, stability and fatigue problems as a result of the high static and dynamic loads often lead to large tower dimensions. That conflicts with the

Manufacturing costs, transport options, manufacturing techniques and assembly techniques. Furthermore, the connection technology for tower-like structures is always a new challenge when larger systems are planned. In particular, the use of screwed ring flange connections between the tower sections now requires very large flange and screw dimensions. This leads to a high production, assembly and maintenance effort of the ring flange connections, which also affects fatigue,

Check imperfections and loss of pre-tensioning force.

In most production facilities, the round rolling of heavy plates with a thickness of up to 70 mm has so far been a limiting factor for the tower sections. When transporting them to the respective site, many road bridges have a further limitation with regard to the tower diameter due to the limited passage height of 4.5 m. Producing larger diameters in steel tubular towers by on-site welding is problematic on the one hand due to the required weld seam quality and on the other hand due to the construction site conditions.

The higher production and transport costs for tower diameters larger than 4.3 m led to alternative solutions, such as the reinforced concrete tower, which is on site with a

Climbing formwork is produced. For some years now, steel towers have also been used, with the lowest tower sections consisting of partial shells that are transported individually to the construction site.

With regard to increasing plant sizes for power generation as well as increased

Tower dimensions are not only for the tower wall, but also for the connections new or improved solutions in terms of manufacturing as well as transport and

Develop assembly techniques. In this regard, Keindorf, load-bearing behavior and

Fatigue strength of sandwich towers for wind turbines, publication series No. 25 of the Institute for Steel Construction at Leibniz University Hannover, dissertation, Hannover, 2010.

As an alternative to the previous design variants, the inventor has developed a new one

Technology presented with which a modular system and its final assembly at the place of use is possible, for which novel connecting elements are to be used.

According to the invention, the construction section (or also construction kit with one or more

Sections) at least two curved and / or flat wall elements with two each

Longitudinal edges and two transverse edges, the wall elements having a profile with a cross-section on the longitudinal edges and at least two shaped pieces for connecting the wall elements over their longitudinal edges, each shaped piece having at least two

Has receptacles for receiving in each case a longitudinal edge of the wall elements and wherein the receptacle with a profile to the cross-section of the longitudinal edge of the wall element geometrically complementary cross-section is formed, wherein two wall elements are connected to one another via one or at least one shaped piece.

In a preferred embodiment, flanges and / or corner connectors can be provided on the transverse edges of the wall elements and / or frictionally attached and / or used, these enabling a connection and / or a connection between two adjacent sections and / or corner connectors and / or Flanges can be designed as crossing areas of longitudinal and transverse joints, wherein these can be arranged on the transverse edges and / or at least in sections on the longitudinal edges of the wall elements.

Furthermore, the shaped pieces can be designed in the same way in the form of a rod and / or round rod and / or profile rod.

The assembled wall elements can in particular span a cylindrical or an elliptical or polygonal space or an open space section in a U-shape or C-shape, which can then be used accordingly.

The wall elements can in particular made of metal and / or plastic and / or

fiber-reinforced plastic and / or wood and / or concrete. Furthermore, the wall elements can also have special sections such as doors, hatches or windows.

In different design variants, the thickness and / or width and / or height of a wall element or a plurality of wall elements can be designed to be constant, different or tapered to one another over the respective extent. In this way straight walls or also tapering rooms, for example in tower construction and the like, can be formed.

In particular, the construction section and / or a connection of at least two

Construction sections can be designed without screws and / or welds and / or adhesives, so that a simple construction as well as any necessary dismantling of the construction sections or of constructions from individual construction sections is possible quickly and easily.

In the following, different advantageous design variants are shown for the molded piece or pieces or the corner connector, according to which the corresponding elements, namely the molded piece or corner connector, can be designed such that:

- In the flanges and / or corner connectors and / or fittings, bushings and / or receptacles for tension elements and / or tension / steel cables are arranged;

and or

- The opening in the shaped piece for receiving the profile of the wall element when receiving the complementary profile has a remaining gap of less than or equal to 1 mm;

and or - It has a bevel angle of 0 ° to 180 °;

and or

- the base material is metal and / or plastic and / or fiber-reinforced plastic and / or wood and / or concrete;

and or

- At least one bore is provided for the non-positive connection of a tension element; and or

- At least one through-hole is provided for the implementation of a tension element; and or

- Sealing elements are provided in the region of the opening in the molding for receiving the profiling, which are in contact with the profile ends of the wall elements;

and or

- The side edges of the shaped pieces are designed to be geometrically complementary to the end faces of the adjacent flanges;

and or

- The fittings and / or corner connectors enter into a systematically releasable connection with the wall elements and a longitudinal thrust of the fittings along the longitudinal edges of the wall elements can be made possible by means of a feed device to be used temporarily for production and / or dismantling;

and or

- A tension element can be fastened to the end face of a shaped piece by means of an end plate and / or a tensioning anchor;

and or

- At least one through hole is present in at least two corner connectors through which connecting means and / or screws and / or bolts and / or pins for frictional connection between corner connector and flange and / or corner connector and corner connector of an adjacent construction section are passed.

In an embodiment or use variant for using the inventive construction section, at least two construction sections can be combined to form one structure, the construction sections being connected to one another along the transverse edges of the wall elements and, if necessary, additional safeguards are provided, selected from a connection to a foundation and / or a Foundation, and / or connection to an abutment, and / or connection by a plurality or by all construction sections connected to one another by clamping devices.

According to the invention, the construction sections according to the invention can be used as:

temporary and / or mobile and / or stationary and / or permanent building system in high and / or civil engineering, support element and / or support structure in vehicle construction, onshore and / or offshore structure for energy generation, structure or structure element in facade construction and / or hall and / or exhibition construction, storage of liquid and / or gaseous and / or solid Materials and / or goods, in the form of silos and / or tanks and / or containers, mast and / or structural element in shipbuilding, composite blades and / or rotor blades in aviation, and / or caissons and / or pile foundations and / or excavation pit protection and / or tunnel element.

The invention and configurations thereof are explained below by way of example and explanations, this description not being to be regarded as restricted, but rather possible

Executes embodiments by way of example.

In Fig. 1 the modular system is shown in the variant as a tower-like construction. However, it can also be used as a mobile or temporary construction, as an onshore and offshore structure for energy generation, in facade construction, hall and exhibition construction or in systems for storing materials (silos, tanks, containers).

It can also be used, for example, as a mast in shipbuilding or as a composite wing or rotor blade in aviation.

In civil engineering, e.g. for caissons, pile foundations, construction pit protection and

Tunnels, other areas of application are conceivable.

The new modular system consists of several wall elements 7, which can be curved or flat (shells or plates). The wall elements 7 have a profile 14 on their longitudinal edges 13, which e.g. a round rod 15 can be. With the help of fittings 16, the longitudinal edges 13 are to be connected, but without screws, welds or

Adhesive. The power transmission takes place predominantly via contact pressures and friction between the round rod 15 and the fitting 16. This requires a high degree of accuracy of fit in order to minimize the slippage between the elements.

The wall elements 7 become a hollow body 17 with the aid of the molded pieces 16

composed, representing a section 8 of a building, e.g. of a

Tower structure 1. The shaped pieces have any desired bevel angle 22 so that the hollow body 17 e.g. forms a polygonal cross section 18. The shaped pieces 16 can also have different bevel angles if this should be necessary geometrically for the overall cross section of the section 8. The fittings 16 do not have to have one at each corner

Polygonal cross-section 18 can be used since, for example, the wall elements 7 themselves can have a bevel, ie the polygonal cross-section 18 can also have more corners than molded pieces 16. On the transverse edges 11, 12 or end faces of the wall elements 7 at the foot end and head end, there are flanges 19 so that two sections 8 can be connected to one another. For the frictional connection between the flanges 19, bolts or screws 20 are used, for which the flanges 19 have corresponding through bores 21. A corner connector 23 is used in the intersection area of the longitudinal and transverse edges so that the corner areas of the section 8 are flush and have no gaps.

The shaped pieces 16 have one or more through holes 26 for the implementation of a cable 24 or a pull rod 25 or equivalent pulling element which is required for the assembly.

Metallic materials can be used for the wall elements. However, concrete or wood are also conceivable as the basic material for the modular principle. Alternatively, the modular principle can be used in aviation for wings or rotor blades and in shipbuilding for masts, with glass fiber reinforced or carbon fiber reinforced

Plastics are to be preferred for the individual wall elements. In these cases, two half-shells are preferably constructed, the shaped pieces on the front and side

Have rear edge of the mast profile or leaf profile. The shaped pieces and corner connectors can be made from the same materials that have already been listed for the wall elements. Metallic materials are preferably used for the tension elements (rope, tie rod, etc.) as well as screws and bolts.

The fittings are scalable and can be adapted to the respective geometry (diameter,

Bending angle, number and length of the wall elements) can be adjusted as required. This enables numerous layouts of the modular system to be made possible. Due to the

Connecting elements are modular and mobile constructions that can be added subsequently but can also be dismantled non-destructively, which is also a big one

brings economic and environmental added value with it.

In Fig. 2, the connecting elements are shown, which along the longitudinal edges of the

Wall elements are planned.

As a further development of the variants in the publication DE 10 2011 054 567 A1, the new modular system is not limited to cylindrical designs with curved wall elements, partial shells. Due to the angular position of the shaped piece, polygon-like designs with flat wall elements, plates can also be recorded in order to obtain a closed section of the kit.

This saves forming processes in the production of the wall elements. The sheet metal or plates can be used directly as flat products by the supplier without first having to form them into pipe sections. Furthermore, the Longitudinal orientation also no longer welds within the

Wall elements / pipe sections required, which further reduces the manufacturing effort. Only the longitudinal edges have to be equipped with suitable profiles (e.g. round bars), for which a welded connection is conceivable.

If necessary, the fittings can be used for wall elements of different thicknesses, because only the round rod has to be designed to fit the fitting, i.e. the left wall element can have a smaller sheet metal thickness than the right wall element.

With regard to the storage of liquids (tank construction), the invention also takes into account positions for sealing elements along the longitudinal edges (pressure-tight

Applications). In addition to the rubber seal, a grouting material can be provided for the annular gap between the round rod and the shaped piece, so that a certain redundancy with regard to the tightness requirements can be guaranteed.

On the transverse edges of the wall elements, on the one hand, flanges with through-holes are used and, on the other hand, a new type of connection piece, which serves as a connection or termination for the longitudinally oriented fittings, see Fig. Fig. 3.

The corner connectors have lateral recesses in order to obtain overlaps with the adjacent flange parts and via screws / bolts / pins or equivalent

To connect connecting means with each other in a non-positive manner. Furthermore, a frictional connection to the corner connector of the second section is achieved in that through-holes are also provided in the second flange in order to connect the corner connectors to one another, see fig. Fig. 4.

The flanges are welded to the respective wall element via transverse seams. A

Corner connector is used between two flanges, for which practical tolerances must be taken into account. When the second section is placed on top of the first section and

has been aligned, on the one hand the flanges and on the other hand the corner connectors can be positively connected to one another. There are also through holes

provided where screws / bolts / pins or equivalent fasteners

be pushed through so that a flange is directly connected to a corner connector.

The production of the construction kit begins with the wall elements, which can be delivered as flat products. After the surfaces have preferably been sandblasted, they can be cut to the desired length and width, with a conical shape also being possible, ie the width tapers from one transverse edge of the wall element to the other transverse edge. During the cutting process with the help of a flame cutting machine, the weld seam preparation is already carried out on the longitudinal and transverse edges of the wall elements (chamfers for the respective seam shape). The wall elements can have a variable sheet metal thickness, viewed over the length. This optimization of the use of materials can be desired through static-constructive criteria.

The round bars can also be delivered as semi-finished products and should or must have a sandblasted surface. The round bars are attached to the

Longitudinal edges of the wall elements are fixed with tack seams and then continuously welded on with butt seams.

The flanges and corner connectors are semi-finished products that can best be delivered in a sandblasted condition. After the flanges have been cut to size, including the bevels for the weld seam preparation, the through-holes are made. The flanges are then connected to the transverse edges of the on a welding portal

Wall elements with the help of butt welds.

After checking the dimensional accuracy and cleaning the wall elements, the coating for corrosion protection is produced. When the coating is cured, they are

Prepare wall elements for transport.

Metallic materials can be provided for the fittings

Continuous casting initially received a basic shape. Then the actual

Cross-sectional geometry of the fittings produced with the help of a pressing or drawing process. The surfaces of the fittings are also cleaned and then protected against corrosion with a coating. In addition, rubber seals can be arranged on the legs of the fittings, which are intended to prevent water from entering the annular gap between the fitting and the rod when installed.

For previous constructions, the sections may have a maximum diameter of 4.3 m if they have to be transported overland with bridges. The circumference-oriented production is not suitable for larger dimensions because none

Road bridge can be driven through more (see Fig. 5 left). Therefore, there are already solutions where curved partial shells are transported that are finally assembled on site (construction site). In a similar way, the new longitudinally oriented production of sections enables partial shells or wall elements to be transported over land (see Fig. 5 right).

Only one transporter is required for the same tower section, which does not have to be marked as a low-loader with extra width and therefore does not require an escort vehicle. The transport costs are reduced and the choice of possible transport routes increases.

The wall elements are lifted into the transporter with a crane from above or pushed in from the rear. Side rails along the entire length and padded Clamping devices on the front sides of the transporter ensure that the

Do not detach wall elements while driving (load securing). The clamping devices are precisely matched to the round bars on the longitudinal edges of the wall elements. Contact between the wall elements must be ruled out in order to avoid damage to the corrosion protection that has already been applied.

The fittings, corner connectors, screws, bolts and the assembly technology are transported separately to the place of use.

In the case of larger dimensions, the final assembly of the modular system takes place directly on site or on the construction site. For this purpose, two wall elements must be aligned parallel along their longitudinal edges so that the fittings can be introduced starting from a transverse edge.

For this purpose, the fittings have factory connections for tie rods or ropes, which are guided through a tensioning device. The clamping device is positioned on the corner connector and is supported on it when the clamping process is carried out. Of the

Corner connector therefore also serves as a support block, which the forces from the

Clamping device transfers to the adjacent flanges. Via a hydraulic, electrical or mechanical drive of the tensioning device, a tensile force is applied to the rope or the pull rod with the help of clamps, see Fig. Fig. 6.

During the tensioning process, the rope or the pull rod are pushed individually. Via the non-positive connection to the fitting, these are also shifted relative to the wall elements that are held in position.

The clamping process is ended when the fitting has been pushed in until it is in direct contact with the underside of the corner connector. Fig. 6 shows the end position of the fitting after the clamping process.

The tensioning device including the cables / tie rods is dismantled again and can be used again for the next assembly step between two other wall elements.

The assembly of a section ends when the kit is completely closed.

Alternatively, through holes are closed in the fittings during manufacture

take into account if the length of the wall elements is greater than the maximum possible length of a fitting. In this case, several fittings are required along the longitudinal edge of a wall element. So that the tensioning process can still be carried out from the position of the corner connector, the rope or the pull rod is passed through all the holes in the fittings and attached to the last fitting with an end plate and a tensioning anchor is installed, see Fig. Fig. 7. The tensile force is introduced at the front end of the last fitting and transmitted via pressure contact at each butt joint between two adjacent fittings. This ensures that all fittings are pushed in simultaneously and evenly between the wall elements during the clamping process.

With regard to the assembly method, the invention should not only cover the option of a horizontal or inclined displacement, but also a displacement in the vertical.

During operation or use of the modular system, the forces and moments resulting from functional and climatic influences (machine operation in or on the modular system, wind, snow, temperature) are non-positively transmitted via the intended connecting elements, so that the closed modular system is flexurally and torsionally rigid can be grouped. Due to the operating loads and the possibility of setting up the kit outdoors, its load-bearing elements must be regularly serviced.

Since the fittings and round bars enable a form fit and force fit without screws / bolts / pins, these connections along the longitudinal edges of the wall elements are to be classified as maintenance-free. In this respect, this modular principle offers advantages in terms of maintenance effort during the service life. In contrast, with

Flange connections the pre-tensioning forces of the screws are checked regularly during operation. However, this requirement also applies to the flanges on the transverse edges of the

Wall elements.

Furthermore, the welds and the sealing elements for each section of the

To inspect the kit regularly.

At the end of the useful life, the structures must be dismantled. Since the fittings and rods are basically to be classified as detachable connections, dismantling can be carried out non-destructively. Appropriate devices are to be used for this, but these are not the subject of this invention. Due to the non-destructive dismantling, it is possible to use the individual elements of the kit for another use or

Reuse scope.

The description shows that when developing this new technology, not only the criterion of load-bearing capacity may be used, but also the

Connection with questions about fatigue strength, serviceability,

Connection technology as well as manufacturing and assembly technology must be viewed as a complete system.

The advantages are summarized below:

Production:

- No forming technology required for flat wall elements - No weld seams between the pipe connections necessary if lengthwise-oriented production

- Scalable connecting elements in series production possible

- Any floor plan shapes are conceivable for the construction kit, because fittings can be geometrically adapted

Transport:

- Transport both by land and by sea

- No restriction to 4.5 m for the main dimensions of the construction kit

- No excess width for truck transport for the individual wall elements

Assembly:

- Horizontal, inclined or vertical displacement possible

- a single jig is required for all connections along the long edges

- robust and simple clamping process

- No tightening processes for screws on the longitudinal edges

- No welding work and corrosion protection measures required on site

Business:

- Direct power transmission without slippage between the fitting and round profiles

- greater stability for the wall elements (panels or shells), as the shaped pieces in between act as stiffening elements

- No maintenance of the connections on the longitudinal edges (without screws) required

- Non-destructive dismantling possible.

List of reference symbols

1 tower structure

2 inner tube

3 outer tube

4 annular gap

5 filler material

6 coat

7 wall element

8 section

9 connecting element

10 partial shells

11 Transverse edge at the foot of a wall element

12 Transverse edge at the head of a wall element

13 long edge

14 profile

15 round bar

16 fitting

17 hollow body

18 polygonal cross-section

19 flange

20 screws or bolts

21 through hole

22 chamfer angles

23 corner connectors

24 rope

25 drawbar

26 through hole in the fitting

27 Jig

28 forehead plate

29 tension anchor

30 weld seam

31 clamp

32 Connection for tension element

33 sealing element

34 Opening for tension element

Claims

EXPECTATIONS

1. Construction section comprising:

- At least two curved and / or flat wall elements (7), each with two

Longitudinal edges (13) and two transverse edges (11, 12), the wall elements (7) having a profile (14, 15) with a cross section on the longitudinal edges (13)

and

- At least two shaped pieces (16) for connecting the wall elements (7) via their longitudinal edges (13), each shaped piece (16) having at least two receptacles (16-4) for receiving one longitudinal edge (13) of the wall elements (7) and the receptacle being designed with a cross-section that is geometrically complementary to the cross-section of the profiling (14) of the longitudinal edge (13) of the wall element (7), two wall elements (7) being connected to one another via one or at least one shaped piece (16).

2. Construction section according to claim 1,

characterized in that

- On the transverse edges (11, 12) of the wall elements (7) flanges (19) and / or corner connectors (23) are provided and / or frictionally attached and / or inserted, these being a connection and / or a connection between two juxtaposed Allow sections (8)

and or

- Corner connectors (23) and / or flanges (19) as the intersection of longitudinal and

Transverse joints are formed, these being arranged on the transverse edges (11, 12) and / or at least in sections on the longitudinal edges (13) of the wall elements (7).

3. Construction section according to claim 1 or 2,

characterized in that

the shaped pieces (16) similarly in the form of a rod and / or round rod (15) and / or

Profile rod are formed.

4. Construction section according to one of the preceding claims,

characterized in that

the composite wall elements (7) are cylindrical or elliptical or span a polygonal space or an open space section in a U-shape or C-shape.

5. Construction section according to one of the preceding claims,

characterized in that

the wall elements (7) are made of metal and / or plastic and / or fiber-reinforced plastic and / or wood and / or concrete.

6. Construction section according to one of the preceding claims,

characterized in that

the thickness and / or width and / or height of a wall element (7) or a plurality of wall elements (7) is designed to be constant, different or tapered to one another over the respective extent.

7. Construction section according to one of the preceding claims,

characterized in that

the construction section and / or a connection of at least two construction sections is designed without screws and / or welds and / or adhesives.

8. Construction section according to one of the preceding claims,

characterized in that

the shaped piece (16) and / or corner connector (23) is designed such that:

- In the flanges (19) and / or corner connectors (23) and / or shaped pieces (16) passages (32) and / or receptacles for tension elements and / or tension / steel cables (24, 25) are arranged;

and or

- The opening (4) in the shaped piece (16) for receiving the profiling (14) of the

Wall element (7) has a remaining gap smaller than or equal to 1 mm when receiving the complementary profile (14);

and or

- It has a bevel angle of 0 ° to 180 °;

and or

- At least one bore is provided for the non-positive connection of a tension element (21, 32, 34); and or

- At least one through hole (21, 32) is provided for the passage of a tension element (24, 25);

and or

- Sealing elements (33) are provided in the region of the opening (16-4) in the shaped piece (16) for receiving the profiling (14) which are in contact with the profile ends of the

Wall elements (7) stand;

and or

- The side edges of the shaped pieces (16) are designed geometrically complementary to the end faces of the adjacent flanges (19);

and or

- The shaped pieces (16) and / or corner connectors (23) enter into a planned detachable connection with the wall elements (7) and a longitudinal thrust of the shaped pieces (16) along the longitudinal edges of the wall elements (7) by means of a temporary to be used for production and / or dismantling Feed device can be made possible; and or

- A tension element (24, 25) can be fastened to the end face of a shaped piece (16) by means of an end plate (28) and / or a tensioning anchor (29);

and or

- At least one through hole (21) is present in at least two corner connectors (23) through which connecting means and / or screws and / or bolts (20) and / or pins for frictional connection between corner connector (23) and flange (19) and / or Corner connector (23) and corner connector (23) of an adjacent construction section

are passed through.

9. Building comprising at least two building sections according to one of the preceding claims, wherein the building sections are connected to one another along the transverse edges (11, 12) of the wall elements (7) and, if necessary, additional safeguards

are provided, selected from:

- Connection to a foundation and / or foundation;

and or

- connection to an abutment;

and or

- Connection by a plurality or by all interconnected

Construction sections by jigs (27).

10. Use of the construction section according to one of the preceding claims as:

- Temporary and / or mobile and / or stationary and / or permanent construction system in building and / or civil engineering;

- Support element and / or support structure in vehicle construction;

- Onshore and / or offshore structures for generating energy;

- Building or building element in facade construction and / or hall and / or exhibition construction;

- Storage of liquid and / or gaseous and / or solid substances and / or goods, in the form of silos and / or tanks and / or containers;

- Mast and / or superstructure element in shipbuilding;

- composite wing and / or rotor blade in aviation;

and or

- Caisson and / or pile foundation and / or excavation support and / or

Tunnel element.