DD130065B1 - SLIDING SHAPING FOR THE PRODUCTION OF CONSTRUCTION WORKS WITH ALTERNATIVE CROSS SECTION - Google Patents

Description

Field of application of the invention

The invention relates to a slip formwork for the production of structures with over the height continuously variable, preferably closed and arbitrarily continuously curved cross-section, the slip formwork from a variety of adjacent formwork panels ordering the desired cross-sectional shape and supported by lifters, carried and according to the solidification of the concrete on is moved upwards ·

Characteristic of the known technical solutions

It is a sliding formwork known (Federal Republic of Germany No. 23 41 212), which z · B · is used for erecting conical chimneys and the mold space is formed by a plurality of partially overlapping, planar and / or curved, foldable formwork panels, wherein the Adaptation to the height changing cross-section with respect to the circumference by pushing together and optionally dismantling individual formwork panels done. With regard to the curvature in the circumferential direction is a coarse adjustment by buckling of the formwork panels and a Peinanpassung by additional, separately present on each panel additional adjusting devices, To adapt to the taper of the structures to be built v / ground in the known slip formwork, the formwork panels by horizontally moving their supports the lifters

inclined to the vertical and compensated for the difference in circumference between the upper and lower edge of the slipform in the overlap joints. For the exception and transfer of loads v / e the known slip formwork support or stiffening structures that are kinked against each other ·

The known slip formwork has the disadvantage that all essential, to be realized by a single panel board forming punctures (curvature, center angle, rigidity u, a.) Only when co-operating several formwork panels are met.

Another disadvantage of the known sliding formwork is that the large number of overlap joints between the formwork panels to a variety of bumps, z. As grooves or pilasters, lead in the prepared wall surface.

Furthermore, it is disadvantageous in the known slip formwork that the size reduction possible without major modification is not sufficient for many structures to be realized, so that larger conversion work with interruption of the sliding process is necessary;

Object of the invention

The Zieü of the invention consists аягіп to eliminate the identified shortcomings of the known slip formwork and to create a slip form, with the structures with over the height continuously variable, preferably closed and arbitrarily continuously curved Quercchnitt after Gleitschalungsverfahren with great accuracy and good surface finish with a simple design «Safe function and low operating and maintenance costs of the technical equipment * can be manufactured,

Explanation of the essence of the invention

The invention is 3ie object, creating a sliding form from one a апеіпяпаэгііе. ^ Епаеп ÜchaltaTein xu so that

the formwork panels independently, individually realize all essential predetermining functions, the formwork panels can be adapted in good approximation to the Bauvverksgeometrie to be realized (wall curvature, wall thickness, wall slope), unevenness of the wall surface weitestgenand be avoided, a wide range of parameters can be realized even without major alterations and the formwork panels are easy to clean from adhering concrete.

Features of the invention

According to the invention, this object is achieved in that each formwork panel has a shuttering sheet of small thickness and usually zv / ei behind it, extending over the Schalbleclihöhe, laterally with the shutter plate stiffeners, which in at least one horizontal plane by a directed only perpendicular to the shutter plate This offers first of all the advantage that the formwork panels represent dimensionally stable wedge-shaped elements, each individually adjustable in a center angle and Fix a continuous curvature of the mold wall, v / odurch a precise adaptation to dio to be produced wall curvature by means of the actuators in a simple manner before joining to a closed mold wall and a constant correction can be realized during the sliding process.

The vertical stiffeners of the scarf plate are advantageously formed as thin-walled closed box profiles, provided with each lying at the same height V / inkelhebeln, which are connected at their facing legs by a hinge and their shawl facing away from the legs by a designed as a turnbuckle actuator. By changing the length of the turnbuckle a concave or convex curvature of the in itself level Schalblech is achieved, the central joints in addition to the kinks and a length compensation of the angle lever in

Allow circumferential direction. In this way, in addition to a very uniform curvature of the scarf plate is achieved with substantial involvement of the scarf plate in the stiffening functions a great dimensional stability of the individual formwork panels at low intrinsic mass.

Another feature of the invention is that several formwork panels assembled by means of positive connections and by means of actuators only vertically by a small amount against each other displaceable a formstelfes, continuously curved, offset, dense form wall segment (formwork panel) revealed that several formwork fields evenly over the circumference of the building are distributed, and that the mold wall between each two adjacent formwork panels by a steadily curved, provided with only one vertical, stiffening stiffening scarf plate is closed overlapping on both sides, wherein the formwork sheet width is large enough so that when circumference reduction and thereby increasing overlap width individual formwork panels dismantled from the formwork panels without opening the mold wall.

The invention further consists in that the same number of shuttering panels and overlapping shuttering panels are arranged on both sides of the wall opposite and each overflowing shuttering panel is attached to support elements which support the adjacent formwork panels on the nearest formwork panels above and below, including the formwork panels at least one the vertical stiffeners have upwardly and downwardly projecting Abstützpimkte which move at Umfangsreduzierun in the circumferential direction over the support elements until the supporting support the next form panels and the respective panel can dismantled v / earth, while the S ζ e e elements even on lifter blocks of known type are attached and depending on the width of the formwork panels by v / eitere, preferably evenly distributed over the circumference and fastened to Heberböclcen support elements are supplemented to the Abstützpunkton individual formwork panels.

Ausi4ihrun £ SExample

The invention will be explained in more detail below with reference to the drawing illustrating an exemplary embodiment.

Show it:

Pig *. 1: A plan view of a part of the slip formwork with a round building cross-section;

Pig · 2: the section A-A after Pig · 1; Pig. 3: the view X to -Pig · 1 j

Pig. 4: the view Y after Pig. 1; Pig. 5 j is a representation of pos. 5, 7 and 8 after Pig. 1;

Pig. 6: a representation of pos. 5 and 7 after Pig. 1 modified version.

The formwork panels of the slipform according to the invention are of three types according to their structure and their puncture: as fixed formwork panels, loose formwork panels and telescopic panels.

Each fixed or loose shuttering panel consists of a self-level shuttering plate 1, on the side finally, two preferably box profile having reinforcements 3 are fixed · In each case the same distance from the upper edge or lower edge of the shuttering plate 1 are perpendicular to the axis of the respective stiffening 3 each an angle lever 5 and an angle lever 6 and 7, one leg tangent and the other legs are directed perpendicular to the wall plane. In each case, an angle lever 5 and lying in the same plane angle lever б or 7 a fixed or loose panel board engage with their facing legs articulated into each other. FIG. 5 shows an embodiment in which the angle levers 5 and 6 or 5 and 7 are connected by an articulated arch S which is displaceably mounted in the angle lever 5 and rotatably mounted in the angle lever 6 or 7. In Pig. 6, the angle levers are 5.6 and 7 identically formed and slotted at their each jev / eils facing legs so and spread that they interlockingly give an articulated connection, the fulcrum is flat in formwork plate 1 in the Querschnittsiuitte.

At the shroud 1 facing away from the legs of the interlocking angle lever 5 and б or 5 and 7 respectively designed as a turnbuckle actuator 9 and 10 is articulated, is given by the length of the uniform convex or concave curvature of the elastically deformed formwork sheet 1. At each angle lever 7 of the loose formwork panels are located on the perpendicular to the wall plane legs a pull tab 11, which produces a positive connection to the respective angle lever 5 and 6 of the adjacent fixed or loose panel. Further, the stiffeners 3 of the fixed formwork panels and the stiffeners 3 of the loose formwork panels provided with angle levers 5 have brackets 12 at both ends. Each holder 12 v / eist a hole and a one-sided therein, upstanding or downwardly projecting support pin 15, while provided with angle lever 7 stiffeners 3 of the loose formwork panels are provided at both ends with brackets 13, with their stuck in a threaded hole This results in, together with the positive connections between pull tabs 11 and angle lever 7 "rigid connections between fixed and loose or between loose sciialtafeln.

In each case, a fixed formwork panel and several, preferably equally on both sides arranged loose formwork panels result in a dense, offset, dimensionally stable formwork field whose arc length is variable by the number of loose formwork panels and its center angle by number and curvature of the formwork panels. Several shuttering panels of the same size are distributed over the circumference of the Bauworksquerschnittes, arranged in pairs opposite each other inside and outside. Hire spaces are closed by overlapping telescopic panels.

A telescopic switchboard consists of a shuttering plate 2 and a stiffening 4, which is arranged centrally thereon and preferably has a box profile.

The shuttering plate 2 protrudes on both sides over the next loose Schaltafelii and is ülsn in the form befindlicac -n

Fresh concrete pressed against this. By means of threaded bushes in the stiffening 4, the telescopic switchboard is attached to the top and bottom of a cross-shaped holder 18. The holder 18 is fixed in known W _e ise by means of adjusting spindle 24 on the jack 25. On the bracket 18 support arms 16 and variable-length actuators 21 are articulated on both sides. The support arms engage over the Stütsaapfen 15 of the nearest loose formwork panels and thus support the respective formwork panels.

In addition, each formwork field, if necessary, d. H. with a correspondingly large formwork field width, in the middle of the stub

15 of the fixed board above and below each supported by a bracket 19 and adjusting spindle 24 on a jack 25. With a very large formwork panel width are located midway between the lifter blocks 25 with the brackets 18 and 19 v / eitere lifter blocks 25 with adjusting spindle 24, brackets 20, Stützannen

16 and actuators 21, wherein the support arms 16 engage over the support pin 15 of at least two loose formwork panels.

The adaptation of the slip formwork to the horizontal curvature of the wall cross-section is carried out prior to assembly by adjusting the actuators Э, 10, 21 and can be adjusted as much as desired in the manufacture of conical structures according to the required curvature. The telescopic panels set themselves on the respective curvature, this is the Schslblech 2 a concave to be curved telescopic panel to be flat and is characterized by the side behind him loose formwork panels and. deforms the fresh concrete side pressure elastically. The shuttering plate 2 of a convexly curved telescopic switchboard is vorkrümmt plastically per se to the minimum required radius of curvature and is elastically bent back by the laterally located behind him loose formwork panels and the fresh concrete side pressure on the particular required curvature.

The wall thickness is adjusted by means of the adjusting spindle 24 or by changing the distance between the stems of the lifter blocks 25

- 8 or changed ·

The conicity of the building, z. As in the manufacture of chimneys requires a tendency of the formwork panels to the vertical, v / as either by tilting the lifter blocks 25 or by means of Verctellspindel 24 is reaLtered. The resulting by the conicity circumferential difference between Gleitschalungsober- and lower edge is compensated by a variable over the panel height overlap degree of the shuttering plates 2 and 1. To compensate for the height level of the inclined fixed and loose screed, the loose formwork panels can be displaced vertically by the required amount by means of the trunnion bolts 14, the vertical arms 5 and 6, respectively, in the recess of the pull tabs 11 being vertical by the same amount move.

For the diameter reduction to be realized with conical structures with increasing height of the structure, it is assumed for the jack blocks 25 that they always remain uniformly distributed over the circumference and are necessarily guided radially to the building axis by a corresponding construction. The enforced Umfangsreduaierung the slipforming leads to the uniform displacement of the support pin 15 in the support arms 16 and to increase the degree of overlap of the shuttering plates 2 and 1 · With fortsehrextender circumference reduction push more loose formwork panels behind the telescopic panels and the support pin 15 of these loose formwork panels in the support arms sixteenth while the previously supporting support pin 15 leave the geweiligen support arm 16. The thus released loose formwork panels are, before they collide against the stiffening 4 of the telescopic panel, after loosening their tenon screws 14 backwards take. This process is repeated with further diameter reduction, if necessary Ъіз the last loose formwork panels are dismantled, but in the meantime initially the lifter blocks 25 with the brackets 20 and finally also the lifter blocks 25 with the brackets 19 dismantled garden.

When the building diameter increases with increasing height, loose formwork panels and, if necessary, lifting stands 25 with releasing holding devices are provided.

Add 19 or 20 rounds in reverse order.

By Zurück- or Weitererkrümmen dismantled Schaltafein adhering to the formwork panel concrete (1,2) can be easily removed · Likewise, the u. U * accidentally adhering to the concrete slip formwork by forward and backward all actuators 9 »10 are successively dissolved again.

Apart from the already mentioned advantages of the sliding formwork according to the invention, its particular advantage lies in the very good dimensional accuracy and the surface quality of the concrete wall produced, since the curvature of the forming surface can be adapted as exactly as desired to the wall walling and the vast majority of the panel joints have neither shoulders nor shoulders Kinks on. Only a small number of overlapping shuttering plates to compensate for changes in the original results in small steps, which, however, are not greater than the formwork sheet thickness. In addition, the inventive design of the Schaltafelverbindungen dazuj that the sealing of the S _c haltafelstöße is supported by the acting Frischbetonseitendruck · As a result of this ßeringe apply concrete losses and a low manual effort for post-treatment of the wall surface.

Another advantage beätht in that any building sections can be made whose parameters, such as circumference, wall curvature, wall thickness and wall slope, can change over the height in large areas as desired. This has the consequence that the sliding formwork according to the invention can be used for a variety of different structures with less installation and remodeling effort,

Fornor is the structure and operation of the sliding shuttering according to the invention simple »so that nu> r little different parts are required and all assembly, disassembly and adjustment can be carried out by hand without complicated tools.

Claims (4)

Inventions 1β Sliding formwork for the manufacture of structures nit the height continuously variable, preferably closed and arbitrarily stotij curved cross section, consisting of a plurality of adjacent, interconnected formwork panels, foaie and loose formwork panels have a baffle plate (1) of small uDicke on the two underlying, extending over the height of the shuttering plate (1), saitlich nit the Very! Blech (1) final stiffening (3) are attached to which in preferably two to the shuttering plate (1) and to the stiffeners (3) vertical planes 7 / inIcelhebel (5; 6; 7) are fastened, which are connected at their facing legs by a joint and at their legs facing away from the formwork panel (1) by means of an actuator (9; 10) hinged in an elastic manner, characterized in that Better formwork panels by means of pull tabs (11), brackets (12; 13) and Zajfan bolts (14) form-fitting to larger dimensionally stable stiffeners curved, paragraphless, eponymous over. the shape of the wall is distributed between two adjoining facing fields by эіпэ Toleskopechaltafal, consisting of a continuously curved scarf plate (2) and a stiffening (4) arranged in the middle, overlapping on both sides and the stiffening ( 4) by means of brackets (1С) and adjusting spindle (2 ~) on a Eeberbock (25) is fixed, and that the fixed and loose formwork panels on the holder (13) obsn or down projecting StüTizcapfen (15), with which they themselves Fields of support via support arms (16), brackets (18, 19, 20), actuators (21) and adjustable spindles (24) and supports (25). 2. Sliding formwork according to item 1, characterized in that at Umfangs'inderung the shuttering plates (1) of the releasing shuttering panels behind the shuttering plates (2) of the telescopic panels and the support pins (15) of the loose shuttering panels in the StUtzarmen (1o) tangentially to the Vcandebene displaced are, for disassembly or disassembly of individual formwork panels with closed mold space and permanent support of Schalun ^ sfeider the shuttering plates (2) of C'eleskopschaltafeln sufficiently wide and the support arms (16) on the brackets (18) are formed sufficiently long. 3. Sliding formwork according to item 1, characterized in that the shuttering plate (2) is vorjekrllmmt for use as a convex curved TeIeskopschaltafel on the smallest to be realized lir'.immungsradius the Bauv / erksquprschnittes and. all other formwork sheets (1; 2) are unrestrained ansicli. Sliding formwork according to item 1, characterized in that the locking levers (5, 6, 7) of a formwork panel are in pairs displaceable on their mutually facing, intermeshing legs by hinge pins (ε) which are displaceable in an angle lever (5) and in the other angle lever (5; 7) are rotatably mounted, connected Slipform according to item 1, characterized dedurch that the Angle levers (5, 5, 7) of a formwork panel on their mutually facing legs are pushed and spread, thus forming an articulated connection in pairs, the pivot point of which in the uncoated formwork panel (1) lies in its cross-section center. 6. Sliding formwork according to points 1 and 2, characterized in that the support arms (Id) can be pivoted through Sbeliglisder (21) z ^ Z ^ - the supports (18; 20). Kierzu "i __. Seii3n ZeiAnen