KR20160073399A - Machine table foundation - Google Patents

Abstract

By means of the method according to the invention, the machine table foundation according to the invention and / or the use according to the invention, a machine table foundation 38 with a shortened construction period can be achieved. To this end, it is proposed in the method according to the invention that the spotted concrete 42 is injected onto one or more semi-finished concrete products 12 located in the final position in the machine table foundation 38. It is proposed that, in the machine table foundation 38 according to the present invention, the table top 40 includes one or more semi-finished concrete products 12 and cast-in-place concrete 42 injected onto the concrete semi-finished product 12. In use in accordance with the present invention, it is proposed that at least one semi-finished product 12 for the table top 40 of the machine table foundation 38 be used.

Description

Machine Table Foundation {MACHINE TABLE FOUNDATION}

The present invention relates to a method of making a machine table base having a table top supported by one or more supports, wherein a cast concrete is injected for the production of a table top. The invention also relates to the use of machine table foundations and one or more semi-finished concrete products having a table top supported by one or more supports.

The machine foundation is particularly intended to support the load of a fixed machine (machine), such as, for example, turbine equipment. Known structural deformations of the machine base are machine table foundations that include one or more supports that are freely supported, and a table top supported by the supports and on which the machine is mounted.

As a material for the table top, reinforced concrete is usually used. For example, a typical minimum size of a table top of a machine table base used for turbine equipment is about 13 m wide, about 30 m long, and about 2 m thick.

Table towers of this size are not suitable for road transport. Thus, the table top is usually manufactured by injection of spot-poured concrete at a construction site ("site"), i.e. at the desired installation location of the machine.

In the production of the tabletop, the following methods are usually used: first, one or more supports are provided. Then, the frame, the formwork and the workbench are mounted on the support. In this case, the function of the framework is to vertically support the load of the site-poured concrete to be injected thereafter. Formwork is used for forming, especially for cast concrete. The purpose of the workbench is to allow access to on-site concrete for the execution of construction work. Then, the reinforcing bars are arranged in the formwork. Subsequently, the site-poured concrete is injected into the form where the site-poured concrete is cured therein. After the site-poured concrete is cured and spontaneously supported (which may take about 28 days), the framework is removed.

The crane can not be used for the removal of the frame because the injected table top itself hinders access to the frame from above. Therefore, the removal of the frame is mostly manual from the bottom, which is mostly time consuming and / or labor consuming.

The object of the present invention is to make it possible to shorten the construction period in the production of the machine table base.

These challenges are addressed by methods, machine table fundamentals, and / or use according to the features of each independent claim.

The present invention is based on a concept in which one or more semi-finished concrete products can be responsible for the function of the framework (i.e., the ability to support the load of the in-situ concrete). Consequently, by injecting the cast concrete into one or a plurality of semi-finished concrete products, in other cases, since the frame supporting at least the load of the cast concrete in the vertical direction or at least the parts of the frame can be omitted, The time for installation and / or removal of parts of the frame can be saved.

The present invention is also based on a design in which the degree of freedom of construction of the lower part of the table top, or at least the lower part of the table top, can be achieved early, through the injection of cast concrete onto one or more semi-finished concrete products. It is not necessary to wait until the on-site cast concrete is self-supported before the work can start at the bottom of the concrete semi-finished product. Rather, as soon as the concrete semi-finished product is placed in its final position, further work can be carried out under the concrete semi-finished product which simultaneously forms the table top in parallel with the production of the table top. Through the removal of the frame or part of the frame, there is less interference during operation at the bottom of the table top.

The degree of freedom of construction at the bottom of the table top achieved early can be a great advantage in machine table foundations, especially in machine table foundations for turbine plants, because additional devices such as condensers, for example, Because it can be arranged.

The spotted concrete can be understood as concrete treated at the construction site. Typically, spot-poured concrete is injected into a mold in which the spotted concrete can be cured therein.

Formwork can be a flask for the manufacture of concrete products in particular. After the curing of the locally cast concrete in the form provided by the form, the form is usually removed. The mold may be assembled / assembled with a plurality of molds, especially in the form of a plate.

Concrete semi-finished products can be understood in particular as reinforced concrete products provided for further work with pre-fabricated concrete products, especially onsite cast concrete. Typically, additional work is performed at a non-factory site, such as a construction site ("site") or a machine installation site. Additional work may include, for example, site-cast concrete injection onto a concrete semi-finished product. A material joining portion may be formed at the interface between the concrete semi-finished product and the cast concrete. In addition, semi-finished concrete can be suitable for road transport due to its size.

The concrete semi-finished product may in particular comprise a concrete body which is actually formed into a square. To compensate for the load-induced deformation of the spot-poured concrete, the concrete semi-finished product can be manufactured to an oversize size from the factory, that is, the semi-finished concrete product may include raised portions that are flattened under the load of the spotted concrete.

It is desirable if the concrete semi-finished product includes elements specially prepared for further work using spot-poured concrete. These elements can be, for example, reinforcing bars of the composite reinforcement that can be embedded into the concrete body by section.

The reinforcement can be understood as a grid embedded / buried / embedded into the concrete product at least per section. The lattice may consist of a plurality of bars, typically steel bars, which are usually aligned horizontally and vertically. The reinforcement may have the purpose of increasing the load capacity of the concrete product, especially during the action of tensile stress. The composite reinforcement may be a particular type of reinforcement provided to act on force coupling, in particular, between the concrete semi-finished product and the cast concrete.

The position of the concrete semi-finished product taken by the concrete semi-finished product in the finished state of the machine table base can be grasped as the final position of the concrete semi-finished product in the machine table base.

Preferably, the final position of the semi-finished concrete in the machine table foundation is on the top of one or more supports, in particular on the supports, on which the table is supported.

The injection of the spotting concrete onto the concrete semi-finished product can be carried out over the entire upper surface of the concrete semi-finished product or over one or more sections of said upper surface. The upper surface can be grasped as a surface directed toward the component parts, particularly the upper half of the concrete semi-finished product.

Injection of the spotted concrete onto the concrete semi-finished product may result in the formation of a spotted concrete layer on the upper surface of the concrete semi-finished product or on one or more sections of the upper surface, especially after curing of the spotted concrete. The spotted concrete layer preferably comprises at least half the thickness of the concrete semi-finished product. Preferably, the thickness of the spotted concrete layer is thicker than the thickness of the concrete semi-finished product. In addition, the thickness of the spotted concrete layer may be substantially uniform.

In the machine table base manufacturing method, the semi-finished concrete product is preferably placed in the final position in the machine table base before the spotted concrete is injected onto the concrete semi-finished product. The positioning of the concrete semi-finished product can be carried out at the construction site, especially using a crane.

The concrete semi-finished product can be placed directly on the upper surface of the support. Alternatively, the concrete semi-finished product may be placed on one or more damping elements arranged on the upper surface of the support (especially when necessary from a mechano-mechanical stability standpoint).

The damping element may be a resiliently deformable component, in particular a metallic component with one or more springs or a component made of plastic or rubber, such as a damping plate. Preferably, the damping element is provided for partial vibratory technical separation of the two components in which the damping element is arranged / arranged therebetween.

If the concrete semi-finished product is placed directly on the upper surface of the support, the concrete semi-finished product may comprise more than one opening. Through this opening, the connection reinforcing portion including the reinforcing bar can be guided. The linkage reinforcement may be a special type of reinforcement, which is particularly used to achieve force coupling between the support and the cast-in-place concrete and / or between the support and the concrete semi-finished product.

The reinforcing bar of the connection reinforcing portion can be partially embedded in the supporting portion. Further, the reinforcing bar of the connection reinforcing portion can protrude partly from the upper surface of the supporting portion, in particular, the supporting portion. Preferably, the reinforcing bar of the connection reinforcing portion is arranged vertically. By injecting the spotted concrete onto the concrete semi-finished product, the reinforcing bars of the connecting reinforcement can be partly embedded into the spotted concrete. Preferably, the openings in the concrete semi-finished product are closed by the cast-in-place concrete through the injection of the spotting concrete.

For example, if the machine on which the load is supported by the machine table foundation is operated within a frequency range where one or more resonant frequencies of the support are in or near the range, one or more damping elements Lt; / RTI > Whether or not the machine is operated within a frequency range in which the resonant frequency of the support is within or near the range may depend in particular on the geometry and / or machine type of the support. The vibrations that can be generated by the operating machine through the arrangement of the damping elements between the support and the concrete half product and which can be transferred from the concrete semi-finished product onto the support can prevent resonance catastrophe in the support So that it can be strongly damped.

Preferably, the damping element is already secure against slippage with respect to the support via frictional force between the damping element and the support, either due to the weight of the subsequently installed concrete semi-finished product or due to its own weight, especially before the placement of the concrete semi-finished product Do.

However, the damping element can likewise be fixed to the support part and / or to the subsequently disposed concrete semi-finished product, in particular using a screw or adhesive bond. Alternatively, the damping element may be partially embedded into the support.

When the table top is supported by a plurality of supports for reasons of stability, for example, the concrete semi-finished product preferably has two or more damping elements arranged on the upper surface of two or more supports, or two Or more damping elements.

Preferably, before the site-cast concrete is injected onto the concrete semi-finished product, the formwork element (or a plurality of dice elements) for the spotting concrete is fixed to the concrete semi-finished product. It is particularly preferred when the concrete half is fixed in the concrete half before it is placed in its final position within the machine table base, especially when the concrete half is placed on the floor. Thereby, a simple and practical assembly of the mold elements is possible.

Preferably, one or more workbench elements of the workbench are secured to the formwork and / or semi-finished product. The workbench can be understood to be a modularly installed platform, particularly a platform for performing work at a height of a few meters. Preferably, the fixation of the workbench element to the formwork is performed before the spotted concrete is injected onto the concrete semi-finished product, in particular before the concrete semi-finished product is placed in its final position within the machine table foundation.

Preferably, the dies are only temporarily fixed to the concrete semi-finished product. After curing of the site-cast concrete, the formwork is preferably dismantled.

Also, prior to the on-site cast concrete being poured onto the concrete semi-finished product, the reinforcing bars may be arranged on the concrete semi-finished product including, for example, lattice-shaped supplementary reinforcements. The supplementary reinforcement can be used to increase the load capacity of the site-poured concrete, especially during the application of tensile stress, and can be understood as a reinforcement arranged outside the concrete semi-finished product.

Preferably, the semi-finished concrete is prewetted with water prior to the injection of the cast concrete, especially for about 24 hours. Thereby, a more sufficient material bond between the semi-finished concrete product and the cast-in-place concrete can be formed, because the concrete can form the material bond more easily in the wet state. Preferably, prewetting of the semi-finished concrete product is performed immediately before the injection of the spotted concrete, for example immediately after the arrangement of the supplementary reinforcement, so that the water is not dried before the spotted concrete is injected.

Preferably, the spotting concrete is injected onto a plurality of concrete semi-finished products located in a final position within the machine table foundation.

Preferably, before the cast concrete is injected onto the concrete semi-finished product, a plurality of concrete semi-finished products are placed in final position within the machine table foundation, especially at the construction site.

Preferably, when the table top is supported by a plurality of supports, a plurality of concrete semi-finished products are each placed on one or more supports, preferably on each of two or more supports.

The plurality of concrete half products may be offset in the vertical direction with respect to each other or at substantially the same height. In addition, a plurality of concrete semi-finished products may be placed at least side by side in pairs, and two or more side faces may be contacted by two side-by-side concrete semi-finished products, or the side walls may separate the two concrete semi-finished products. Thereby, a modular structure of the lower section of the table top supporting the cast-in-place concrete is possible. In particular, the variable aspect ratio and / or variable geometry of the table top can be achieved through a modular structure.

Preferably, the first concrete semi-finished product is placed on a second concrete semi-finished product ("partially overlaid") on a section-by-section basis before the spotted concrete is injected onto the two concrete semi-finished products.

After the first concrete half product is partially overlapped on the second concrete half product, due to its own weight, it can be prevented from sliding against the second concrete half product through the friction between the first and second concrete half products. Preferably, however, the first and second concrete semi-finished products are force-coupled to each other before the spot-poured concrete is injected onto the second concrete semi-finished product. In particular, contact plates welded to each other can be fixed and / or fixed to the first and second concrete half products. Alternatively, the first and second concrete half products can be screwed together. Therefore, this also applies to two concrete semi-finished products arranged side-by-side in a partially non-overlapping arrangement.

If the first concrete half product is partially overlapped and placed on the second concrete semi-finished product, the second concrete semi-finished product may already be located in the final position within the machine table base. Alternatively, the first concrete half product may still be partially overlaid on the floor and placed on the second concrete half product. If the two concrete semi-finished products are connected together force-bonded, they can be jointly located from the floor to the final position in the machine table base.

Preferably, the spacing, in particular the gaps, between adjacent two mold elements which can be fixed to the same concrete semi-finished product or to different concrete semi-finished products, before the spotting concrete is injected, is covered by additional mold elements. Thereby, the outflow of the spotted concrete through the gap between the two form elements can be prevented. Preferably, an additional die element is secured to the die elements to cover the gap between two adjacent die elements.

Preferably, mortar is provided in the gap between adjacent two concrete semi-finished products, in particular in the joint, before the spot-poured concrete is injected onto the two concrete semi-finished products. Thereby, the gap or the joint between the adjacent two concrete semi-finished products is closed, whereby the leakage of the spot-poured concrete particularly downwardly through the gap or the joint can be prevented. Alternatively, instead of mortar, an expanding foam or other sealing means may be provided in the gap or joint between two adjacent concrete half products.

Also, prior to the injection of the spotting concrete, the opposing die elements that can be fixed to the same concrete semi-finished product or different concrete semi-finished products can be pre-tensioned by one or more tensioning anchors.

The tensile anchor can be understood as a device used to compensate for the compressive force that can be applied to the die element, particularly when the spot cured concrete that has not yet been hardened. Tension anchors may include one or more wires ("tensioning wires"). Preferably, the tensile or tensile wires are actually formed of steel. At the different ends of the tension wires or tension wires, respectively, anchor plates which can be supported on the outer side of one of the opposing die elements can be fixed and / or fixed.

The outer surface of the mold element can be seen as the surface of the mold element on the opposite side of the spotted concrete.

Tension anchors may be surrounded and / or enclosed by sections, by cladding. In particular, the tensile or tensile wires of the tensile anchors may be surrounded / surrounded by a cladding tube between opposing die elements that are pre-tensioned by a tensile anchor.

Preferably, the tensile anchor is disassembled prior to the disassembly of the formwork, but after the site-cast concrete is cured. The cladding can be retained in the cured field-cast concrete. Preferably, the tensile anchor is pulled from the field-poured concrete through the cladding.

After curing of the spot-poured concrete, at least on top of the table top, in particular the top surface of the spot-poured concrete, at least concrete elements can be injected. The concrete element may be a substructure for one or more mechanical elements of the machine, particularly where the machine table elements are provided.

Preferably, prior to the injection of the concrete element, additional molds are arranged on the table top, in particular on the top surface of the spot-poured concrete. Preferably, additional dies are secured to the table top or to the field-toped concrete of the table top.

To reinforce the concrete elements, additional reinforcements may be arranged inside the additional molds, or additional molds may be arranged around additional reinforcements arranged on the table top. Alternatively, the additional dies may be embedded into the table top by section and arranged around the reinforcing portion projecting from the table top by section.

One or more supports supporting the table top are preferably vertically aligned. For reasons of stability, the supports can be embedded in the ground on a section by section basis. Preferably the support comprises a flat upper surface. Preferably, the upper surface of the support is horizontally aligned. Thereby, the semi-finished concrete product can be horizontally disposed on the support portion.

At the machine table foundation, the table top is preferably aligned horizontally. Also, the table top may be formed as a square.

Preferably, the semi-finished concrete product is arranged on the support part, in particular on the support part.

The concrete semi-finished product can be placed directly on the upper surface of the support. Alternatively, the concrete semi-finished product may be disposed on one or more damping elements arranged on the upper surface of the support. The damping element can be secured to the support and / or the concrete semi-finished product, in particular using a screw or adhesive bond. However, the damping element may be partly embedded in the support.

When the concrete semi-finished product is placed directly on the upper surface of the support, the concrete semi-finished product preferably comprises at least one opening. Through this opening, the connection reinforcing portion including the reinforcing bar can be guided.

The reinforcing bar of the connection reinforcing portion can be partially embedded in the supporting portion. In addition, the reinforcing bar of the connection reinforcing portion can be partially embedded in the spot-poured concrete. Preferably, the reinforcing bar of the connection reinforcing portion is vertically aligned. The openings in the concrete semi-finished product are preferably closed by the cast-in-place concrete.

Preferably, the composite reinforcement portion including the reinforcing bar is embedded in the table top. Preferably, the reinforcing bar of the composite reinforcement is embedded into the concrete body of the concrete semi-finished product by section. Also, it is preferable that the reinforcement bars of the composite reinforcement portion are similarly embedded into the site-cast concrete by section. As a result, force coupling between the cast concrete and the concrete semi-finished product is possible. The composite reinforcement can be entirely embedded into the table top. However, the composite reinforcing portion may protrude from the table top.

The reinforcing bar of the composite reinforcement is preferably embedded in the concrete body of the concrete semi-finished product from the factory. Preferably, some or all reinforcement bars of the composite reinforcement are actually vertically aligned. In addition, the reinforcing portion including the additional reinforcing bar can be embedded into the concrete semi-finished product, and the reinforcing bar of the additional reinforcing portion can be particularly embedded into the concrete body of the concrete half as a whole. Additional reinforcing bars may be used to increase the load capacity of the concrete semi-finished product, especially when acted upon by tensile stress.

It is preferable when the supplemental reinforcement portion including the reinforcing bar is embedded in the table top. The reinforcing bar of the supplementary reinforcement may be arranged externally of the concrete half-finished product entirely. Preferably, the reinforcing bars of the supplemental reinforcement are embedded into the spotted concrete. The reinforcing bar of the supplementary reinforcement can be used to increase the load capacity of the field-poured concrete, especially in the action of tensile stress.

It is also desirable if one or more thread sleeves are to be embedded into the concrete half product. The threaded sleeve preferably includes an accessible threaded opening. Preferably, the screw elements can be used to secure the mold elements to the concrete semi-finished product. Alternatively, functionally identical stationary elements may be provided.

Concrete semi-finished products may include a profiled, e.g., rough top surface. The profiled upper surface of the concrete semi-finished product can support the force coupling between the concrete semi-finished product and the locally laid concrete.

The table top may comprise a plurality of concrete semi-finished products. Preferably, the spotted concrete is injected onto a plurality of concrete semi-finished products.

Preferably, when the machine table foundation includes a table top supported by a plurality of supports, the plurality of concrete semi-finished products are each arranged on one or more supports, preferably on each of two or more supports.

The plurality of concrete semi-finished products may be offset with respect to each other in the vertical direction or arranged at substantially the same height. In addition, a plurality of concrete semi-finished products may be arranged at least side by side in pairs and two or more side faces may be contacted by two side-by-side concrete semi-finished products or two semi-finished concrete products may be spaced through the side of the joint.

When two side-by-side concrete semi-finished products are spaced apart through the joint, the joint is preferably sealed against the outflow of the spot-poured concrete by a sealing means. The sealing means may in particular be mortar or expanded foam.

Concrete semi-finished products may include profiled, especially rough side. Thereby, high stability of the table top of the machine table base can be achieved.

Preferably, the first concrete semi-finished product is installed on the second concrete semi-finished product (partially overlapped) by section.

The first concrete semi-finished product may comprise one or more stepped bearing supports. The second concrete semi-finished product may include one or more brackets. Preferably, the stepped bearing support of the first concrete semi-finished product is disposed on the bracket of the second concrete semi-finished product.

The bracket can be understood as a protrusion of a component especially prepared to support the load of another component. The stepped bearing support can be understood as a protrusion of the part prepared for placement on the bracket.

The stepped bearing support of the first concrete semi-finished product may comprise the same length as the bracket of the second concrete semi-finished product. Also, the reinforcement may be embedded in the bracket and / or the bearing support, respectively.

In addition, the first and second concrete semi-finished products may be connected to each other by force coupling. In particular, a contact plate welded to each other can be fixed to the first and second concrete half products. Alternatively, the first and second concrete semi-finished products may be screwed together.

On the table top, in particular on the upper surface of the spot-poured concrete, one or more concrete elements impregnated with additional spot-poured concrete can be arranged. The concrete element may in particular be a substructure for one or more machine elements of a machine provided with a machine table foundation.

In using the concrete semi-finished product, the concrete semi-finished product is preferably used as a component supporting the cast-in-place concrete for the table top of the machine table foundation.

The contents of the preferred configurations described so far include many features that can be combined in various ways in each dependent claim. These features, however, are preferably considered separately and may be combined in any other desired combination. In particular, these features may be combined individually and in any suitable combination with the method according to the invention, the machine table basis according to the invention and the use according to the invention, according to the independent claims.

The above-described characteristics, features, and advantages of the present invention and the manner in which these are achieved will be clearly and clearly understood by the following description of embodiments which are described in detail with reference to the drawings. The embodiments are used to illustrate the invention and are not intended to limit the combination of features and functional features set forth in the examples. In addition, suitable features of the embodiments may be considered to be expressly independent and combined with any of the claims.

Figures 1 to 7 show a top perspective view of different construction conditions of the machine table base during the manufacture of the machine table foundation.
Figure 8 shows a cross-sectional view of a table top.
Figure 9 shows a cross-sectional view of a concrete semi-finished product having a concrete semi-finished product with a bracket and a stepped bearing support.

Figures 1-7 show different installation conditions of the machine table base for a turbine installation in the upper perspective view during the manufacture of the machine table foundation. The construction conditions shown in the drawings are classified according to the increasing construction progress. Turbine installations are not shown in the drawings for reasons of overview.

In Fig. 1, six supports 2 are shown. The supports 2 are vertically aligned. The upper surface 4 of the support 2 is flat and horizontally aligned. The support 2 is also arranged such that its top surface 4 lies in a plane.

Two metal damping elements 6 are arranged on the upper surface 4 of the support part 2 respectively and the damping element comprises a plurality of springs and is fixed to each support part 2 by screwing. The damping element 6 is then used for partial vibration and technical separation of the support 2 from the part provided on the support 2.

The upper surface of the support 2 extends a rectangle having a longitudinal direction 8 and a transverse direction 10. Three supports 2 are arranged in each row in two rows in the longitudinal direction 8 and two supports 2 are arranged in each row in three rows in the lateral direction 10.

First, in particular, while the concrete semi-finished product is located on the floor, the formwork of the formwork is fixed to the workbench elements of the workbench and to the concrete semi-finished product. The semi-finished concrete is then placed in the final position within the machine table base, in particular on the support. In this case, the concrete half product is placed on the damping element fixed to the support.

In Figure 2, three concrete semi-finished products 12 are arranged on each of two of the six supports 2. The concrete half-finished product 12 is placed on the damping element 6 of the support 2 and is located in the final position within the machine table foundation.

In addition, each of the three concrete semi-finished products is provided with a composite reinforcement 16 comprising a reinforcing bar 14. The reinforcing bar 14 of the composite reinforcing portion 16 is embedded in the concrete main body 18 of each of the semi-finished concrete products 12 by section. The reinforcing bar 14 of the composite reinforcing portion 16 projects from the concrete main body 18 of each concrete semi-finished product 12 by section. Further, the reinforcing bar 14 of the composite reinforcing portion 16 is vertically aligned.

The composite reinforcing portion 16 acts on the force coupling between the concrete semi-finished product 12 and the concrete placed on the concrete after being placed on the concrete semi-finished product 12. In particular, when the tensile stress acts, .

Four vertically aligned molds 20 are secured to the workbench element 22, respectively, in the left-hand concrete half-finished product 12 (as viewed by the inspector). Four vertically aligned molds 20 are fixed to the right half of the concrete product 12, and three of the four molds 20 are fixed to the workbench elements 22, respectively. In the intermediate concrete semi-finished product 12, three vertically aligned molds 20 are each fixed to one workbench element 22. [

A plurality of threaded sleeves, each comprising a threaded opening accessible respectively, are embedded in each of the three concrete semi-finished products 12. The die element 20 is fixed to the concrete semi-finished product 12 by a screw sleeve. For reasons of overview, a screw sleeve is not shown in Fig. A cross section of the concrete semi-finished product that can see the buried screw sleeve is shown in FIG.

In addition, all three concrete semi-finished products 12 have the same width, the same thickness and the same length. The thickness of the concrete semi-finished product 12 is about 0.5 m. The length is about 13m and the width is about 2.5m.

The three concrete semi-finished products 12 are oriented along the transverse direction 10. Thus, the semi-finished concrete product 12 is also represented by a transverse beam.

At the next stage of the construction phase, an additional concrete half product is placed in the final position within the machine table base, especially on the concrete semi-finished product 12 previously placed on the support 2. Further, the additional concrete semi-finished product is force-welded to the concrete semi-finished product 12 previously located on the support 2.

Figure 3 shows four additional concrete semi-finished products 24 on top of three concrete semi-finished products 12 previously placed on the support 2. Two of the additional four concrete semi-finished products 24 include a width of about 3.5 m. The other two of the additional four concrete semi-finished products 24 include a width of about 2 m.

An additional four concrete semi-finished products 24 are oriented along the longitudinal direction. Thus, an additional four concrete semi-finished products 24 are also indicated as longitudinal beams. Exactly the same as the three transverse beams, each of the four longitudinal beams also has the composite reinforcement 16.

In the narrow two beams of the four longitudinal beams, two vertically aligned molds 20 are fixed to one workbench element 22, respectively. In each of the two wide beams of four longitudinal beams, vertically aligned form elements 20 are fixed to the workpiece element 22.

Each of the four longitudinal beams is filled with a plurality of threaded sleeves each including threaded openings accessible respectively (exactly the same as the transverse beams). The die element 20 is secured to the longitudinal beam by a threaded sleeve. The screw sleeve is not shown in Figure 3 for reasons of openness.

The two wide longitudinal beams are connected to each other by two steel beams 26 arranged in parallel with each other. Each of the two steel beam 26 is embedded in one of its two wide ends and the other of the two ends is embedded in the other of two wide, longitudinal beams. Further, the two steel rods 26 are free on a section-by-section basis. In the region where the steel beam 26 is embedded, two longitudinal beams having a wider width include an enlargement portion 28. [

In Fig. 4, the four longitudinal beams of Fig. 3 are arranged on a section basis, on three lateral beams previously positioned on the support 2.

In this case, two narrow longitudinal beams are disposed on the left and middle lateral beams, respectively, and two broad longitudinal beams are disposed on the middle and right lateral beams, respectively.

The left and right lateral beams each include two brackets. The intermediate transverse beam includes four brackets. In addition, the longitudinal beams each include two stepped bearing supports. The stepped bearing support of the longitudinal beam is disposed on the bracket of the transverse beam. In addition, the longitudinal beam is force-coupled with the longitudinal beams, in particular screwed. For reasons of overview, the brackets of the transverse beams and the stepped bearing supports of the longitudinal beams are not shown in Fig. The concrete half-finished product 12, particularly the brackets of the transverse beams and other concrete semi-finished products 24, in particular the stepped bearing supports of the longitudinal beams, are shown in cross-section in FIG.

Also, the longitudinal beam and the transverse beam are arranged at approximately the same height. The longitudinally arranged beams and the transverse beams arranged in pairs are spaced from each other through the joints.

At the next stage of the construction phase, additional concrete semi-finished products are placed in the final position within the machine table foundation, and are placed on the additional concrete semi-finished product 24.

In Fig. 5, a further four semi-finished concrete products 30 are arranged on two wide width beams. Two of the four additional concrete semi-finished products 30 are oriented along the longitudinal direction 8, each partially overlapping and disposed in each of the two wide lateral beams. The other two of the additional four concrete half-products 30 are oriented along the transverse direction 10 and are respectively disposed on one of the enlarged portions 28 of the two wide transverse beams.

An additional four concrete semi-finished products 30 are arranged offset with respect to the transverse beam and the longitudinal beam in the vertical direction.

In addition, a further four semi-finished concrete products 30 are force-coupled with the transverse beams, in particular screwed. Further, the additional concrete semi-finished product 30 is provided with the composite reinforcing portion 16, exactly the same as the three lateral beams and the four longitudinal beams.

In the next step of the construction step, a gap between adjacent die elements 20 is covered by an additional die element secured to the previously provided die element. Also, the mortar is provided into the joint between the concrete semi-finished products, and the opposing die elements 20 are pre-tensioned by a tensile anchor.

In Figure 6 a gap between adjacent mold elements 20 is covered by an additional mold element 32 that is secured to the previously provided mold element 20.

Further, an additional workbench element 34 is fixed to the previously provided workbench element 22, thereby forming a generally accessible workbench.

In addition, additional concrete moldings 35 are fixed to the additional concrete semi-finished product 30 disposed on two of the transverse beams.

The opposing die elements 20 are pre-tensioned by a tension anchor, and the tension anchors are only arranged between the inner sides of the die element. The inner side of the form element is understood to be the side which comes into contact with the subsequently placed cast-in-place concrete. For reasons of overview, the tensile anchor is not shown in Fig. The cross section of the table top in which the tensile anchor can be seen is shown in Fig.

The supplemental reinforcement is then arranged on all concrete semi-finished products. The semi-finished concrete is then prewetted with water. Subsequently, the spotted concrete is injected onto the concrete semi-finished product to complete the table top of the machine table base formed of the concrete semi-finished product and the cast concrete. After curing of the spot-poured concrete of the table top, additional molds are arranged on the top surface of the spot-poured concrete and concrete elements are injected.

The finished machine table foundation 38 is shown in Fig. 7, and the die for the table top 40 has not yet been disassembled. The concrete semi-finished product can no longer be seen because the concrete semi-finished product is covered by the site-laid concrete 42.

Table top 40 includes two rectangular, clean openings. The opening 44 in the left side (when viewed by the responder) is used as an inlet to the device arranged in the lower part of the table top 40, in particular the condenser. The right opening 46 is used for the execution of the electrical connection of the generator output line.

In addition, two concrete elements 48 are placed on the table top 40, each of which is used as an infrastructure for the mechanical elements of the turbine plant and the additional on-cast concrete is injected.

In addition, the cut surface 49 is shown. The cross section of the table top 40 shown in Fig. 8 is a cross section along the cut surface 49. Fig.

All of the concrete half-finished products shown in Figs. 1 to 7 also have a reinforcing portion 64, which further includes a reinforcing bar 62, in addition to the composite reinforcing portion 16. The reinforcement bars 62 of these additional reinforcement portions 64 are not visible in Figures 1 to 7 because they are entirely embedded in the concrete body 18 of each concrete semi-finished product.

Each of the concrete semi-finished products shown in Figs. 1 to 7 also has a profiled upper surface 50, which can support force coupling between each concrete semi-finished product and the on-cast concrete 42. Further, each of the concrete semi-finished products shown in Figs. 1 to 7 has at least one profiled side, whereby higher stability of the table top can be achieved.

8 shows a cross-section through table top 40, in particular a cross-section along cut surface 49 shown in FIG.

The concrete semi-finished product 12 having the profiled upper surface 50 and the spotted concrete 42 injected on the concrete semi-finished product can be seen.

(Viewed by the inspector) The form elements 20 are fixed to the left and right sides of the concrete semi-finished product 12, respectively. The two molds 20 are each secured to the concrete semi-finished product 12 by two screw sleeves 52 that are embedded into the concrete half-finished product 12. In addition, the workpiece elements 22 are fixed to the two molds 20, respectively.

Further, two tensile anchors 54 are fixed to the two molds 20. In this case, one end of the two ends of the two tensile anchors 54 are fixed to the left mold element 20, respectively, and the other end thereof is fixed to the right mold element 20. Between the die elements 20, the tensile anchors 54 are each completely surrounded by the cladding 56. The two tensile anchors 54 are used in particular to compensate for the compressive forces that the field-poured concrete can apply on the formwork 20 prior to curing of the site-poured concrete 42.

The horizontally aligned reinforcing bar 58 of the supplemental reinforcement 60 filled completely into the spot-poured concrete 42 and the horizontally aligned reinforcing bar 58 of the additional reinforcing portion 64 completely embedded in the concrete half- 62). It is also possible to provide a vertically aligned reinforcing bar (not shown) of the composite reinforcement 16 which is completely embedded in the table top 40 and embedded into the concrete body 18 of the semi-finished concrete product 12, 14) can be seen.

At the upper end and lower end of the reinforcing bars, the reinforcing bars 14 of the composite reinforcement 16 are connected to each other via metal arches 66 ("stirrups"). The reinforcement bars 58 of the supplemental reinforcement 60 and the reinforcement bars 62 of the additional reinforcement 64 are connected to each other at their ends via metal arches as well, I can not.

Figure 9 shows a cross-sectional view of two concrete semi-finished products. The left-hand concrete half-finished product 12 (particularly when viewed by the viewer) is a transverse beam in particular. The right concrete semi-finished product 24 is a longitudinal beam in particular.

The transverse beam includes a bracket 68, but the longitudinal beam includes a stepped bearing support 70. The bracket 68 and the stepped bearing support 70 are actually the same size. The stepped bearing support 70 of the longitudinal beam is disposed on the bracket 68 of the transverse beam. In Figure 9, the two concrete semi-finished products are shown offset in relation to one another in the horizontal and vertical directions, so that the brackets 68 and the stepped bearing supports 70 are seen better.

The two concrete semi-finished products each have a metal contact plate 72 fixed thereto. The contact plates 72 are welded together to form a force mating connection between the two concrete half products.

The two concrete semi-finished products include a composite reinforcement 16 having a vertically aligned reinforcement bar 14 and an additional reinforcement 64 having a horizontally aligned reinforcement bar 62. The reinforcing bar 62 of the additional reinforcing portion 64 is completely buried in the concrete body 18 of each concrete semi-finished product but the reinforcing bar 14 of the composite reinforcing portion 16 is divided into sections by the respective concrete bodies 18 And protrudes from the concrete body 18 by sections.

The reinforcement bars 14 of the composite reinforcement 16 are connected to each other through the metal arch 66 at the lower end of the reinforcement bar. In addition, a portion of the additional reinforcement 64 of each concrete semi-finished product is embedded into the bracket 68 or the stepped bearing support 70.

While the present invention has been particularly shown and described with reference to a preferred embodiment thereof, it is to be understood that the invention is not to be limited to the disclosed embodiment, and that other modifications may be made by those skilled in the art without departing from the scope of protection of the invention.

Claims (15)

A method of manufacturing a machine table foundation (38) having a table top (40) supported by one or more supports (2), the method comprising the steps of: In the production method of the present invention,
Cast concrete (42) is injected onto at least one concrete semi-finished product (12) located in a final position within the machine table foundation (38). 2. Method according to claim 1, characterized in that the concrete semi-finished product (12) is placed on the support part (2) before the spotted concrete (42) is injected onto the concrete semi-finished product (12). A method according to claim 2, characterized in that the concrete half-finished product (12) is arranged on the upper surface (4) of the support part (2) or on one or more damping elements (6) arranged on the upper surface Gt; Method according to any one of claims 1 to 3, characterized in that one or more mold elements (20) are fixed to the concrete half-finished product (12) before the cast-in-place concrete (42) Characterized by a machine table base method. 5. A method according to any one of the preceding claims, characterized in that the replenishing reinforcing portion (60), including the reinforcing bar (58), before the cast concrete (42) (12). ≪ / RTI > 6. Method according to any one of claims 1 to 5, characterized in that the spotting concrete (42) is injected onto a plurality of concrete semi-finished products located in a final position in the machine table foundation (38). 7. A method according to claim 6, characterized in that a plurality of concrete semi-finished products are located in a final position in the machine table foundation (38) before the spot-poured concrete (42) is injected onto the concrete half product. 8. A method according to any one of claims 1 to 7, wherein the first concrete semi-finished product (24) is placed on the second concrete semi-finished product (12) section by section before the spotted concrete (42) And the two concrete semi-finished products are connected to each other in force-coupling manner. A machine table base (38) made according to any one of claims 1 to 8, having a table top (40) supported by one or more supports (2)
The table top (40) comprises at least one concrete semi-finished product (12) and a cast-in-place concrete (42) injected onto the concrete semi-finished product (12). The composite reinforcing bar according to claim 9, wherein the reinforcing bar (14) is embedded in the table top (40) and the reinforcing bar (14) Is embedded into the concrete body (18) of the machine (30) and into the site-poured concrete (42) by section. 11. A method according to claim 9 or claim 10, wherein a supplemental reinforcing portion (60) comprising a reinforcing bar (58) is embedded into the table top (40) and the reinforcing bar (58) of the supplemental reinforcing portion (60) 12) and is embedded at least in sections into the locally-laid concrete (42). 12. Machine table foundation (38) according to any one of claims 9 to 11, characterized in that the table top (40) comprises a plurality of concrete semi-finished products into which the cast concrete (42) is injected. 13. Machine table foundation (38) according to claim 12, characterized in that the first concrete half-finished product (24) is placed on the second concrete half-product (12) section by section and the two concrete half- . Use of one or more semi-finished concrete products (12) for the table top (40) of the machine table foundation (38). A method according to claim 14, characterized in that the semi-finished concrete product (12) is used as a component for supporting the spotted concrete (42) for the table top (40) of the machine table foundation (38) 12).

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