DE202023101410U1 - Foundation structure consisting of a reinforced concrete foundation and a support body with a connection arrangement - Google Patents

Abstract

Foundation structure (1) consisting of a reinforced concrete foundation (10) and a support body (11), a connection arrangement (12) being set up with which the support body (11) is connected to the reinforced concrete foundation (10), characterized in that the connection arrangement (12 ) has at least one pipe section (13) which is connected to at least one reinforcement element (14) of the reinforced concrete foundation (10), and wherein the supporting body (11) has at least one rod element (15) which projects into or into the pipe section (13). penetrates, wherein at least one plate element (16) on the pipe section (13) is arranged adjacent, via which the rod element (15) is clamped to the pipe section (13).

Description

The invention relates to a foundation structure consisting of a reinforced concrete foundation and a support body, with a connection arrangement being set up with which the support body is connected to the reinforced concrete foundation.

The proportion of prefabricated reinforced concrete foundations with supporting bodies, such as pillars, supports, walls and binders or also supporting bodies with reinforced concrete foundations already cast on, is becoming increasingly important due to the higher costs, lack of skilled workers and lower CO ₂ emissions for the on-site manufacture of such structures. so that the reinforced concrete foundation and the support body are, for example, delivered separately to an installation site of the foundation structure, and only on site is the connection between the reinforced concrete foundation and the support body made by means of a connection arrangement. The connection arrangement must be designed in such a way that large forces and moments can be transmitted between the supporting body and the reinforced concrete foundation, in particular vertical supporting forces and laterally acting shearing forces, which cause large bending moments.

If a reinforced concrete foundation is built, an excavation pit is usually first made, which is proven with a so-called blinding layer, for example lean concrete, on which the foundation can then be aligned in height. The height of the reinforced concrete foundation is established, for example, by means of lining plates made of steel or plastic, and the resulting construction joint is filled with high-strength, low-shrink mortar.

Structures with a reinforced concrete foundation and a support body, in particular manufactured as a prefabricated foundation, are known in the prior art and are referred to as so-called Swedish feet. These are concrete components with a concrete slab and a concreted tube or sleeve into which the precast column is embedded and cast during assembly. Such Swedish feet can transfer loads from the support body and derive them into the reinforced concrete foundation. A disadvantage of such systems is the large dimensions of the Sweden foot due to its bulky design and transportability is limited. In this respect, it is desirable to create a connection arrangement between the reinforced concrete foundation and the supporting body which can transmit forces of a similar magnitude as a foundation structure made of a reinforced concrete foundation with a supporting body cast integrally thereon.

For example, teaches EP 1 748 119 B1 a foundation structure made of a reinforced concrete foundation and a support body, a connection arrangement being set up with which the support body is connected to the reinforced concrete foundation. The procedure is such that to connect the support to the foundation at the top of the foundation and at the lower end of the support tabs are set up, which have aligned bores in the mounted position of the support on the foundation, so that the respective tabs are connected with bolt elements . The disadvantage is that narrow tolerances have to be observed for this, since the bolts have to be driven through eyes in the lugs. The connection arrangement formed in this way can then be cast with a mineral casting.

DISCLOSURE OF THE INVENTION

The object of the invention is to improve a foundation structure made of a reinforced concrete foundation and a supporting body with a connection arrangement that can be provided easily and with which high forces and moments can be transmitted.

This object is achieved starting from a foundation structure according to the preamble of claim 1 with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that the connection arrangement has at least one pipe section which is connected to at least one reinforcement element of the reinforced concrete foundation, and wherein the support body has at least one rod element which projects into or penetrates the pipe section, with at least one plate element adjoining the pipe section is arranged, via which the rod element is braced with the pipe section.

The core idea of the invention is to provide at least one or preferably several pipe sections as the central element of the connection arrangement, which serve as force-transmitting intermediate elements between the reinforced concrete foundation and the support body, and the reinforced concrete foundation can be tied to the pipe section or sections in a simple manner with at least one reinforcement element While the rod element of the support body is braced with or against the pipe section or sections, for example with nuts. The pipe section can, for example, have a diameter-to-length ratio of about 1:1, where Deviations, for example, by 50% or more are possible in both dimensions. It is conceivable, for example, for the tubular element to have a diameter or, in the case of a non-round cross-section, a generally diametrical dimension which is up to half the height of the tubular section or up to twice the height of the tubular section.

The tubular section forms a tubular element and is arranged between the reinforced concrete foundation and the support body in such a way that it does not protrude into the mineral cast of the reinforced concrete foundation, and the support body also only protrudes with its rod element into the tubular element. However, it is conceivable that, based on an upper side of the reinforced concrete foundation, the tubular element is set up above, lying in the surface or below the surface, for which purpose the concrete body of the reinforced concrete foundation has a corresponding recess.

If only a single plate element is set up, this is preferably arranged on the planar end of the tube section opposite the support body, and the plate element can be clamped with the tube section against the underside of the support body, for example with a screw nut that is screwed onto the rod element. Alternatively, the underside of the support body can rest on the top of the reinforced concrete foundation and the bracing can also take place therewith.

According to a preferred embodiment, a lower plate element and an upper plate element are set up such that both plate elements close the open end sides of the tube section and the rod element penetrates both plate elements and is braced with them. It is advantageously possible for both plate elements to be screwed against one another with a first nut adjacent to the lower plate element and with a second nut adjacent to the upper plate element and for the tube section to be in the screw tension between the plate elements. The position, in particular the vertical alignment of the support body, can be adjusted over the reinforced concrete foundation by adjusting the two nuts on the rod element such that the support body is arranged vertically over the reinforced concrete foundation, for example.

The tube section can have a round, oval, rectangular or polygonal cross-sectional shape, it also being conceivable for the plate elements to have an outer contour which is adapted to the cross-sectional shape of the tube section. For example, the plate element must have at least one outer circumference that protrudes beyond the inner circumference of the pipe section in order to create an overlap and to achieve a supporting effect of the plate element on the pipe section. For example, the cross-sectional shape of the plate elements can correspond to the outer cross-section of the pipe section.

The pipe section is connected to the reinforced concrete foundation with particular advantage by means of two or more reinforcement elements. In this case, the reinforcement elements can be connected to the pipe section in positions diametrically opposite one another, that is to say in positions 180° opposite one another. For this purpose, for example, weld seams can be provided with which the reinforcement elements, for example in the form of likewise round or rectangular rods, are welded to the pipe section on the outside.

It is particularly advantageous for the reinforcement elements to form parts of a reinforcement cage which are lengthened and thus protrude from the reinforced concrete foundation and penetrate the reinforced concrete foundation and stiffen it in a manner known per se.

If the reinforced concrete foundation has a recess below the arrangement of at least one or more pipe sections, there is the advantage that a tool can be placed on the lower, first screw nut through the recess in order to twist or tighten it on the external thread of the rod element. and in order to produce the tension between the two screw nuts and the plate elements. In particular, such a recess is necessary when the pipe section is installed at the level of the surface or below the surface of the top of the reinforced concrete foundation.

For example, two, four, six or more pipe sections can be connected to the reinforced concrete foundation via assigned reinforcement elements, so that with several pipe sections with respective reinforcement elements and assigned rod elements from the support body, a connection arrangement can be produced that can transmit very high forces and moments. The multiple pipe sections are set up, for example, in a regular formation over the reinforced concrete foundation, for example in two rows of three if six pipe sections are provided. If four tube sections are provided, their position can form a rectangle or a square, for example.

The supporting body is constructed, for example, from a reinforced concrete component, it also being possible for just a steel component, for example a beam or the like, or a wooden component to form the supporting body. If the support body is formed from a reinforced concrete component, the rod element of the support body can also form a reinforcement body of the support element.

To accommodate the screw nuts, the rod element has an external thread, at least in sections, onto which the at least one or both screw nuts are screwed.

After it has been produced, the connection arrangement can be cast in particular with a mineral casting, with the pipe section preferably having an opening in its pipe wall on the top and/or underside, so that when the connection arrangement is cast in with the mineral casting, the interior of the pipe section can also be poured out. Depending on the material, the connection arrangement is particularly protected against corrosion by the mineral cast.

The invention is also directed to a connection arrangement for forming a foundation structure from a reinforced concrete foundation and a support body, so that the support body is connected to the reinforced concrete foundation, the connection arrangement having at least one pipe section which is connected to at least one reinforcement element of the reinforced concrete foundation, and the support body has at least one rod element which protrudes into or penetrates the pipe section, wherein at least one plate element is arranged adjacent to the pipe section, via which the rod element is clamped to the pipe section.

The foundation structure described above with the connection arrangement described results in a high-strength connection between a support body and a reinforced concrete foundation, with the connection arrangement having a simple structure and consisting of components that are easy to provide, with the pipe section in particular, but optionally also the reinforcement element and/or the rod element CrNi steel can be formed.

PREFERRED EMBODIMENT OF THE INVENTION

• 1 eine perspektivische Ansicht des Fundamentaufbaus aus einem Stahlbetonfundament und einem Stützkörper mit einer Verbindungsanordnung,
• 2 eine perspektivische Ansicht eines Bewehrungskorbes als Bestandteil des Stahlbetonfundamentes mit oberseitig angebundenen Rohrabschnitten,
• 3 eine Seitenansicht des Bewegungskorbes gemäß 2,
• 4 eine quergeschnittene Ansicht des Fundamentaufbaus aus dem Stahlbetonfundament, dem Stützkörper und der Verbindungsanordnung,
• 5a die Seitenansicht des Bewehrungskorbes mit den Rohrabschnitten,
• 5b eine Draufsicht auf die Rohrabschnitte mit angebundenen Bewehrungselementen,
• 5c eine Einzelansicht eines Rohrabschnittes und
• 6 eine quergeschnittene Ansicht der Verbindungsanordnung mit einem Rohrabschnitt.

Further measures improving the invention are presented in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to the figures. It shows:

• 1 a perspective view of the foundation structure consisting of a reinforced concrete foundation and a support body with a connection arrangement,
• 2 a perspective view of a reinforcement cage as part of the reinforced concrete foundation with pipe sections connected to the top,
• 3 a side view of the moving basket according to FIG 2 ,
• 4 a cross-sectional view of the foundation structure from the reinforced concrete foundation, the support body and the connection arrangement,
• 5a the side view of the reinforcement cage with the pipe sections,
• 5b a top view of the pipe sections with connected reinforcement elements,
• 5c a detail view of a pipe section and
• 6 a cross-sectional view of the connection arrangement with a pipe section.

1 shows a perspective view of the foundation structure 1 consisting of a reinforced concrete foundation 10 and a support body 11, and a connection arrangement 12 is set up for the connection between the support body 11 and the reinforced concrete foundation 10, so that with the foundation structure 1 formed in this way, for example, an arrangement of a support with a foundation for a structure can be built. For this purpose, the reinforced concrete foundation 10 is let into the ground in a manner not shown in detail and secured accordingly, with the securing being able to already be produced by the mass of the reinforced concrete foundation 10 . The support body 11 generally extends perpendicularly out of the upper side of the reinforced concrete foundation 10 and can itself be made of a reinforced concrete component, whereby it is also conceivable that the support body 11 can be a steel component, for example a box girder or a double T-beam. or forms a wooden component.

According to the invention, the connecting arrangement 12 has a pipe section 13 which serves as a connecting link between the reinforced concrete foundation 10 and the support body 11 . The view shows six pipe sections 13 in a two-row formation, so that there are three pipe sections 13 at the front and three pipe sections 13 at the rear. The pipe sections 13 are connected to the reinforced concrete foundation 10 by means of reinforcement elements 14, with the reinforcement elements 14 protruding from the upper side of the reinforced concrete foundation 10, and the individual pipe sections 13 are accommodated between two reinforcement elements 14 in each case.

The 2 and 3 show a perspective view and a side view of a reinforcement cage 20 with the vertically running reinforcement elements 14, which accommodate the pipe sections 13 on the upper side. The reinforcement cage 20 shown can be placed in the reinforced concrete foundation 10 according to FIG 1 be bordered by being predominantly or completely surrounded by cast minerals, with the pipe sections 13 being kept free on the upper side, either by protruding from the reinforced concrete foundation 10 or by providing a recess 21 on the upper side in the reinforced concrete foundation, as in 3 shown.

On the underside, the reinforcement cage 20 closes off with a base plate 24 which, at the same time, is in accordance with the base level of the entire reinforced concrete foundation 10 1 can complete.

The views show that two reinforcement elements 14 are arranged relative to one another in such a way that a pipe section 13 is accommodated at the upper end of the reinforcement elements 14 between two or more reinforcement elements 14 . The tube sections 13 are welded to the upper ends of the reinforcement elements 14 in a manner that is not shown in detail. The diametrical arrangement of the reinforcement elements 14 on the outer circumference of the pipe sections 13 changes from pipe section 13 to the adjacent pipe section 13 by 90° in each case.

4 shows a cross-sectional view through the entire foundation structure with the reinforced concrete foundation 10 on the underside, the connection arrangement 12 and the support body 11 on the upper side these take up the pipe sections 13 and these are also positioned above the top of the reinforced concrete foundation 10 .

The view shows the rod elements 15 of the support body 11, which can also form reinforcement elements, and the rod elements 15 protrude from above into the pipe sections 13 and are screwed to the pipe sections 13 on the top and bottom. The view shows the easy accessibility of the screw nuts 18 and 19, plate elements 16, 17 being set up for screwing the rod elements 15 to the pipe sections 13 on the upper side and underside of the pipe sections 13. This achieves the advantage that an alignment of the supporting body 11 relative to the reinforced concrete foundation 10 is possible by precisely clamping the nuts 18 , 19 against one another. The connection arrangement 12 thus also has an adjustment option. The nuts 18, 19 form an adjustment unit.

5a shows the reinforcement cage 20 from the side, so that it can be seen that two reinforcement elements 14 in the form of vertical rods each receive a tube section 13, so that the tube sections 13 are each surrounded by two laterally arranged reinforcement elements 14, while the reinforcement elements 14 for enclosing the tube sections 13 on the left and right sides are shown in front of each other, see also 5b . 5c shows a single pipe section 13 according to the circle in 5a , and it can be seen that a notch is made on the top and bottom sides to form an opening 23. FIG. Through the opening 23 in its pipe wall, the pipe section 13 can also get into the interior of the pipe section 13 and also pour out the mineral casting, for example mortar or concrete, during a later casting with mineral casting, whereby a very advantageous corrosion protection of the connection arrangement is achieved.

6 finally shows a cross-sectional view of the connection arrangement 12, the reinforcement elements 14 only being shown in sections coming from the underside of the reinforced concrete foundation and the supporting body, and a rod element 15 coming from the top being shown.

The view illustrates the arrangement of the pipe section 13 between a lower plate element 16 and an upper plate element 17, with an external thread 22 being applied at least to the section of the rod element 15 shown, onto which a first screw nut 18 adjacent to the lower plate element 16 and a second screw nut 19 are screwed onto the male thread 22 adjacent to the top plate member 17 . By tightening the screw nuts 18, 19 against each other, the rod element 15 is rigidly arranged together with the plate elements 16, 17 on the pipe section 13.

The pipe section 13 is connected to the reinforcement elements 14 via welded connections 25, the reinforcement elements 14 being welded to the outer peripheral surface of the pipe section 13 in two diametrically opposite positions, for example. Alternatively, it is conceivable to weld the reinforcement elements 14 to the tubular element 13 on the underside, for example with a butt joint.

The view also shows two openings 23 through which a mineral cast can also get into the interior of the pipe section 13 when the connection arrangement 12 is cast.

The invention is not limited in its implementation to the preferred exemplary embodiment specified above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different designs. All of the features and/or advantages resulting from the claims, the description or the drawings, including structural details or spatial arrangements, can be essential to the invention both on their own and in a wide variety of combinations.

reference list

1

foundation construction

10

reinforced concrete foundation

11

supporting body

12

connection arrangement

13

pipe section

14

reinforcement element

15

rod element

16

lower plate element

17

upper plate element

18

first nut

19

second nut

20

reinforcement cage

21

recess

22

external thread

23

opening

24

bottom plate

25

Weld

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 1748119 B1 [0005]

Claims (15)

Foundation structure (1) consisting of a reinforced concrete foundation (10) and a support body (11), a connection arrangement (12) being set up with which the support body (11) is connected to the reinforced concrete foundation (10), characterized in that the connection arrangement (12 ) has at least one pipe section (13) which is connected to at least one reinforcement element (14) of the reinforced concrete foundation (10), and wherein the supporting body (11) has at least one rod element (15) which projects into or into the pipe section (13). penetrates, wherein at least one plate element (16) on the pipe section (13) is arranged adjacent, via which the rod element (15) is clamped to the pipe section (13). Foundation structure (1) according to claim 1 , characterized in that a lower plate element (16) and an upper plate element (17) are set up, both plate elements (16, 17) closing the open end sides of the pipe section (13) and the rod element (15) both plate elements (16, 17) penetrates and is braced with them. Foundation structure (1) according to claim 1 or 2 , characterized in that both plate elements (16, 17) are screwed against each other with a first screw nut (18) adjacent to the lower plate element (16) and with a second screw nut (19) adjacent to the upper plate element (17) and the pipe section (13) is located in the screw tension between the plate elements (16, 17). Foundation structure (1) according to one of Claims 1 until 3 , characterized in that the pipe section (13) has a round, oval, rectangular or polygonal cross-sectional shape and/or the plate elements (16, 17) have an outer contour which corresponds to the cross-sectional shape, the diameter, the edge length and/or other Outer or inner contour of the pipe section (13) is adapted. Foundation structure (1) according to one of the preceding claims, characterized in that the pipe section (13) is connected to the reinforced concrete foundation (10) by means of two reinforcement elements (14). Foundation structure (1) according to one of the preceding claims, characterized in that the reinforcement elements (14) are connected to the pipe section (13) in positions diametrically opposite one another. Foundation structure (1) according to one of the preceding claims, characterized in that the reinforcement elements (14) are part of a reinforcement cage (20) which penetrates the reinforced concrete foundation (10). Foundation structure (1) according to one of the preceding claims, characterized in that the reinforcement elements (14) are welded to the pipe section (13) on the outside. Foundation structure (1) according to one of the preceding claims, characterized in that the reinforced concrete foundation (10) has a recess (21) below the pipe sections (13). Foundation structure (1) according to one of the preceding claims, characterized in that two, four, six or more pipe sections (13) are connected to the reinforced concrete foundation (10) via associated reinforcement elements (14) and/or that the supporting body (11) has an associated number of rod elements (15) in the same arrangement, the rod elements (15) being designed analogously to the arrangement of the pipe sections (13). Foundation structure (1) according to one of the preceding claims, characterized in that the support body (11) forms a reinforced concrete component, a steel component or a wooden component, the rod element (15) forming a reinforcement body of the support body (11) if this is a steel component. Foundation structure (1) according to one of the preceding claims, characterized in that the rod element (15) has an external thread (22) at least in sections, onto which the first nut (18) and/or the second nut (19) is screwed. Foundation structure (1) according to one of the preceding claims, characterized in that the connection arrangement (12) is cast in with a mineral casting when the connection between the reinforced concrete foundation (10) and the supporting body (11) is established. Foundation structure (1) according to one of the preceding claims, characterized in that the pipe section (13) has an opening (23) in its pipe wall, so that when the connection arrangement (12) is cast in with the mineral casting, the interior of the pipe section (13) can also be poured out . Connection arrangement (12) for forming a foundation structure (1) from a reinforced concrete foundation (10) and a supporting body (11), so that the supporting body (11) is connected to the reinforced concrete foundation (10), characterized in that the connection arrangement (12) has at least one pipe section (13) which is connected to at least one reinforcement element (14) of the reinforced concrete foundation (10), and wherein the The supporting body (11) has at least one rod element (15) which protrudes into or penetrates the tubular section (13), with at least one plate element (16) being arranged adjacent to the tubular section (13), via which the rod element (15) is connected to the Pipe section (13) is braced.

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