EP0087739B1 - Form ring for shutterings of curved construction - Google Patents

Form ring for shutterings of curved construction Download PDF

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Publication number
EP0087739B1
EP0087739B1 EP83101725A EP83101725A EP0087739B1 EP 0087739 B1 EP0087739 B1 EP 0087739B1 EP 83101725 A EP83101725 A EP 83101725A EP 83101725 A EP83101725 A EP 83101725A EP 0087739 B1 EP0087739 B1 EP 0087739B1
Authority
EP
European Patent Office
Prior art keywords
shuttering
steel
formwork
ring
steel bands
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83101725A
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German (de)
French (fr)
Other versions
EP0087739A1 (en
Inventor
Peter Frei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PATENVER AG
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PATENVER AG
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Filing date
Publication date
Application filed by PATENVER AG filed Critical PATENVER AG
Publication of EP0087739A1 publication Critical patent/EP0087739A1/en
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Publication of EP0087739B1 publication Critical patent/EP0087739B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E04G11/52—Girders, beams, or the like as supporting members for forms of several units arranged one after another
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form

Definitions

  • the invention relates to a formwork ring for formwork for circular structures, consisting of ring segments, with two radially spaced, flexible steel bands, which are connected to butt flanges, the steel band lying in the formwork being inextricably linked, preferably welded, while the other Steel strap is adjustable in length.
  • the invention is concerned with sliding formwork, the formwork panels, which are fastened to a sliding frame, being able to be pulled up on a climbing frame or the like in accordance with the respective construction progress.
  • a beam with an adjustable radius of curvature is known from FR-A-2 226 522. It consists of radially spaced steel strips, one of which can be shortened.
  • the object of the invention is to provide a formwork ring consisting of ring segments, in which the ring segments can be continuously adapted to any desired formwork or building diameter, and the circular shape of the formwork ring is ensured over every setting.
  • the steel strip removed from the formwork is held displaceably on the butt flanges, for example clamped to them, and the butt flanges of adjacent ring segments can be connected, for example by means of screws, the steel strips being bi-steel strips.
  • the ring segment By moving the butt flanges on the outer steel strips, the ring segment can be curved more or less easily in a simple manner.
  • Bi-steel is currently used as reinforcing steel for reinforced concrete structures.
  • a description of bi-steel is given, for example, in AT-B-178716 and 181 066.
  • this is understood to mean a reinforcing steel which consists of at least two longitudinal bars connected to one another at a distance by cross connectors, the longitudinal bars consisting of a steel with high tensile strength, and the cross connectors, which are preferably steel with a low C and / or Mn content, between the longitudinal bars are welded.
  • a further exemplary embodiment provides that the steel strips removed from the formwork are held on the butt flange only at one end of a ring segment, while they are welded to the butt flange on the other side.
  • the steel strips removed from the formwork are advantageously clamped to the webs or pins of the butt flanges by means of screws.
  • Another embodiment of the invention provides that the butt flanges at at least one end of a ring segment is preceded by a shaped tube to which the steel strips are connected, the steel strips closer to the formwork preferably being welded on, and the steel strips removed from the formwork preferably being clamped by means of screws .
  • Holding boards for the formwork boards are advantageously screwed to the butt flanges.
  • FIG. 1 schematically shows a vertical section through a sliding formwork with a formwork ring according to the invention
  • FIG. 2 shows a plan view of the joint area of a ring segment according to the invention
  • FIG. 1 shows a section along the line 111-111 of FIG. 2.
  • Fig. 1 only the section of the wall of the rotunda is shown. With the inside of the rotunda and with A the outside of the rotunda is called. The entire sliding formwork 1 and thus the formwork rings 2 extend around the entire circumference of the rotunda, which is defined by the inner radius ri and the outer radius ra.
  • formwork rings 2 are provided over the height of the sliding formwork.
  • the number of formwork rings can vary.
  • the entire sliding formwork 1 is attached to a sliding frame 3 and can be pulled up on one column or several columns 4.
  • the outer formwork is fastened to the inner formwork or to the sliding frame 3 by means of a gallows 5.
  • the special details of this sliding formwork 1 with respect to scaffolding and relocability should not be dealt with in this context, since it does not form part of the subject matter of the invention and can be solved according to the prior art.
  • the formwork rings 2 are composed of several ring segments, each of which has a butt flange 6 at both ends.
  • the steel strips 7 and 8 which are radially distanced from one another, extend between the abutment flanges 6.
  • bi-steel strips are used.
  • the bi-steel strips 8 removed from the formwork are clamped to a web 12 of the butt flange 6 by means of screws 10 and nuts 11.
  • this embodiment provides a certain length of the ring segments, the curvature of the ring segments can be changed by moving the clamping point on the bi-steel strip 8.
  • shaped tubes 14 are arranged in front of the butt flanges 6 in the ring segments, the inner bi-steel strip 7 in turn being welded to the shaped tube 14, while the outer bi-steel strip 8 is fastened to the by means of a screw 15 Form tube is clamped.
  • This design resulted in better dimensional stability of the ring segments.
  • vertical struts can again be provided in the form of a shaped tube; such a strut 16 is, however, advantageously only with every second or third butt flange 6, i. H. be provided at every second or third junction of two ring segments.
  • holding boards 17 are screwed onto the butt flanges 6 by means of screws 18.
  • the formwork boards 19 are then nailed to the holding boards 17.
  • the 1 also has 20 working platforms, which can be designed as such according to the prior art;
  • the working platforms 20 are advantageously fastened to the ring segments of the formwork 1 according to the invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

Die Erfindung bezieht sich auf einen Schalungsring für Schalungen für Rundbauten, bestehend aus Ringsegmenten, mit zwei radial distanzierten, biegsamen Stahlbändern, die mit Stoßflanschen verbunden sind, wobei das bei der Schalung liegende Stahlband mit den Stoßftanschen unlösbar verbunden, vorzugsweise verschweißt ist, während das andere Stahlband in der Länge verstellbar ist. Insbesondere beschäftigt sich die Erfindung mit Gleitschalungen, wobei die Schaltafeln, die auf einem Gleitgerüst befestigt sind, an einem Klettergerüst od. dgl. entsprechend dem jeweiligen Baufortschritt hochgezogen werden können.The invention relates to a formwork ring for formwork for circular structures, consisting of ring segments, with two radially spaced, flexible steel bands, which are connected to butt flanges, the steel band lying in the formwork being inextricably linked, preferably welded, while the other Steel strap is adjustable in length. In particular, the invention is concerned with sliding formwork, the formwork panels, which are fastened to a sliding frame, being able to be pulled up on a climbing frame or the like in accordance with the respective construction progress.

Aus der FR-A-2 226 522 ist ein Balken mit verstellbarem Krümmungsradius bekannt. Er besteht aus radial distanzierten Stahlstreifen, von denen einer verkürzbar ist.A beam with an adjustable radius of curvature is known from FR-A-2 226 522. It consists of radially spaced steel strips, one of which can be shortened.

Aufgabe der Erfindung ist es, einen Schalungsring, bestehend aus Ringsegmenten, zu schaffen, bei dem sich die Ringsegmente kontinuierlich jedem gewünschten Schalungs- bzw. Gebäudedurchmesser anpassen lassen und wobei die Kreisform des Schalungsringes ber jeder Einstellung gewährleistet ist.The object of the invention is to provide a formwork ring consisting of ring segments, in which the ring segments can be continuously adapted to any desired formwork or building diameter, and the circular shape of the formwork ring is ensured over every setting.

Dies wird erfindungsgemäß dadurch erreicht, daß das von der Schalung entfernte Stahlband versetzbar an den Stoßflanschen gehalten, beispielsweise an diese geklemmt ist, und die Stoßflansche benachbarter Ringsegmente beispielsweise mittels Schrauben verbindbar sind, wobei die Stahlbänder Bi-Stahlbänder sind.This is achieved according to the invention in that the steel strip removed from the formwork is held displaceably on the butt flanges, for example clamped to them, and the butt flanges of adjacent ring segments can be connected, for example by means of screws, the steel strips being bi-steel strips.

Durch Versetzen der Stoßflansche an den äußeren Stahlbändern kann das Ringsegment auf einfache Weise mehr oder weniger stark gekrümmt werden.By moving the butt flanges on the outer steel strips, the ring segment can be curved more or less easily in a simple manner.

Bi-Stahl findet zur Zeit als Bewehrungsstahl für Stahlbetonkonstruktionen Verwendung. Eine Beschreibung von Bi-Stahl ist beispielsweise in den AT-B-178716 und 181 066 gegeben. Grundsätzlich versteht man darunter einen Bewehrungsstahl, welcher aus mindestens zwei miteinander in Abstand durch Querverbinder verbundenen Längsstäben besteht, wobei die Längsstäbe aus einem Stahl hoher Streckfestigkeit bestehen, und die Querverbinder, die vorzugsweise Stahl mit niedrigem C- und/oder Mn-Gehalt sind, zwischen den Längsstäben eingeschweißt sind.Bi-steel is currently used as reinforcing steel for reinforced concrete structures. A description of bi-steel is given, for example, in AT-B-178716 and 181 066. Basically, this is understood to mean a reinforcing steel which consists of at least two longitudinal bars connected to one another at a distance by cross connectors, the longitudinal bars consisting of a steel with high tensile strength, and the cross connectors, which are preferably steel with a low C and / or Mn content, between the longitudinal bars are welded.

Einer der besonderen Vorteile des Bi-Stahles, abgesehen von seiner hohen Belastbarkeit, ist darin zu sehen, daß der Bi-Stahl, wie beobachtet werden kann, wenn er gebogen wird, selbsttätig den Biegungsverlauf einer Kreiskurve annimmt.One of the special advantages of the bi-steel, apart from its high resilience, can be seen in the fact that the bi-steel, as can be observed when it is bent, automatically assumes the curve of a circular curve.

Ein weiteres Ausführungsbeispiel sieht vor, daß die von der Schalung entfernten Stahlbänder nur an einem Ende eines Ringsegmentes klemmend an dem Stoßflansch gehalten sind, während sie an der anderen Seite mit dem Stoßflansch verschweißt sind. Vorteilhaft sind die von der Schalung entfernten Stahlbänder mittels Schrauben an Stege oder Zapfen der Stoßflansche geklemmt.A further exemplary embodiment provides that the steel strips removed from the formwork are held on the butt flange only at one end of a ring segment, while they are welded to the butt flange on the other side. The steel strips removed from the formwork are advantageously clamped to the webs or pins of the butt flanges by means of screws.

Ein weiteres Ausführungsbeispiel der Erfindung sieht vor, daß den Stoßflanschen an mindestens einem Ende eines Ringsegmentes ein Formrohr vorgesetzt ist, mit dem die Stahlbänder verbunden sind, wobei die zur Schalung näheren Stahlbänder vorzugsweise angeschweißt, und die von der Schalung entfernten Stahlbänder vorzugsweise mittels Schrauben angeklemmt sind.Another embodiment of the invention provides that the butt flanges at at least one end of a ring segment is preceded by a shaped tube to which the steel strips are connected, the steel strips closer to the formwork preferably being welded on, and the steel strips removed from the formwork preferably being clamped by means of screws .

An die Stoßflansche sind vorteilhaft Haltebretter für die Schalbretter angeschraubt.Holding boards for the formwork boards are advantageously screwed to the butt flanges.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Figuren der beiliegenden Zeichnungen eingehend beschrieben.An exemplary embodiment of the invention is described in detail below with reference to the figures in the accompanying drawings.

Die Fig. 1 zeigt schematisch einen Vertikalschnitt durch eine Gleitschalung mit erfindungsgemäßem Schalungsring, die Fig. 2 zeigt eine Draufsicht auf den Stoßbereich eines erfindungsgemäßen Ringsegmentes, und die Fig. zeigt einen Schnitt nach der Linie 111-111 der Fig. 2.1 schematically shows a vertical section through a sliding formwork with a formwork ring according to the invention, FIG. 2 shows a plan view of the joint area of a ring segment according to the invention, and FIG. 1 shows a section along the line 111-111 of FIG. 2.

In der Fig. 1 ist nur der Schnittbereich der Wand des Rundbaues gezeigt. Mit ist das Innere des Rundbaues und mit A das Äußere des Rundbaues bezeichnet. Die gesamte Gleitschalung 1 und somit die Schalungsringe 2 erstrecken sich um den gesamten Umfang des Rundbaues, der jeweils vom Innenradius ri und vom Außenradius ra definiert wird.In Fig. 1 only the section of the wall of the rotunda is shown. With the inside of the rotunda and with A the outside of the rotunda is called. The entire sliding formwork 1 and thus the formwork rings 2 extend around the entire circumference of the rotunda, which is defined by the inner radius ri and the outer radius ra.

Im Ausführungsbeispiel sind über die Höhe der Gleitschalung vier Schalungsringe 2 vorgesehen. Die Anzahl der Schalungsringe kann jedoch variieren.In the exemplary embodiment, four formwork rings 2 are provided over the height of the sliding formwork. However, the number of formwork rings can vary.

Die gesamte Gleitschalung 1 ist an einem Gleitgerüst 3 befestigt und kann an einer Säule oder mehreren Säulen 4 hochgezogen werden. Die äußere Schalung ist mittels eines Galgens 5 an der inneren Schalung bzw. am Gleitgerüst 3 befestigt. Auf die besonderen Einzelheiten dieser Gleitschalung 1 in bezug auf Gerüst und Versetzbarkeit soll in diesem Rahmen nicht eingegangen werden, da es nicht zum Gegenstand der Erfindung gehört und nach herkömmlichem Stand der Technik gelöst werden kann.The entire sliding formwork 1 is attached to a sliding frame 3 and can be pulled up on one column or several columns 4. The outer formwork is fastened to the inner formwork or to the sliding frame 3 by means of a gallows 5. The special details of this sliding formwork 1 with respect to scaffolding and relocability should not be dealt with in this context, since it does not form part of the subject matter of the invention and can be solved according to the prior art.

Die Schalungsringe 2 setzen sich aus mehreren Ringsegmenten zusammen, die an ihren beiden Enden jeweils einen Stoßflansch 6 aufweisen. Zwischen den Stoßflanschen 6 erstrecken sich die Stahlbänder 7 und 8, die voneinander radial distanziert sind. Im Ausführungsbeispiel werden Bi-Stahlbänder verwendet.The formwork rings 2 are composed of several ring segments, each of which has a butt flange 6 at both ends. The steel strips 7 and 8, which are radially distanced from one another, extend between the abutment flanges 6. In the exemplary embodiment, bi-steel strips are used.

Im Ausführungsbeispiel sind die inneren Bi-Stahlbänder 7, d. h. die Bi-Stahlbänder, die sich näher zur Schalungswand und somit zur Mauer 9 befinden, an die Stoßflansche 6 angeschweißt. Die von der Schalung entfernten Bi-Stahlbänder 8 sind mittels Schrauben 10 und Muttern 11 an einem Steg 12 des Stoßflansches 6 geklemmt.In the exemplary embodiment, the inner bi-steel strips 7, i. H. the bi-steel strips, which are closer to the formwork wall and thus to the wall 9, welded to the butt flanges 6. The bi-steel strips 8 removed from the formwork are clamped to a web 12 of the butt flange 6 by means of screws 10 and nuts 11.

Durch diese Ausführung ist zwar eine gewisse Länge der Ringsegmente gegeben, die Krümmung der Ringsegmente kann jedoch durch Versetzen der Klemmstelle an dem Bi-Stahlband 8 verändert werden.Although this embodiment provides a certain length of the ring segments, the curvature of the ring segments can be changed by moving the clamping point on the bi-steel strip 8.

Zur Herstellung eines Schalungsringes 2 werden die Stoßflansche 6 mittels Schrauben und Muttern 13 miteinander verschraubt.To make a formwork ring 2 the butt flanges 6 are screwed together by means of screws and nuts 13.

Wie aus der Fig. 2 ersichtlich, sind im Ausführungsbeispiel vor den Stoßflanschen 6 bei den Ringsegmenten Formrohre 14 angeordnet, wobei das innere Bi-Stahlband 7 wiederum mit dem Formrohr 14 verschweißt ist, während das äußere Bi-Stahlband 8 mittels einer Schraube 15 an das Formrohr geklemmt wird. Durch diese Ausführung ergab sich eine bessere Formstabilität der Ringsegmente.As can be seen from FIG. 2, in the exemplary embodiment, shaped tubes 14 are arranged in front of the butt flanges 6 in the ring segments, the inner bi-steel strip 7 in turn being welded to the shaped tube 14, while the outer bi-steel strip 8 is fastened to the by means of a screw 15 Form tube is clamped. This design resulted in better dimensional stability of the ring segments.

Zusätzlich können noch, wie in der Fig. 1 unter 16 gezeigt, vertikale Verstrebungen in der Form wiederum eines Formrohres vorgesehen sein ; eine derartige Verstrebung 16 wird jedoch vorteilhaft nur bei jedem zweiten oder dritten Stoßflansch 6, d. h. bei jeder zweiten oder dritten Verbindungsstelle zweier Ringsegmente vorgesehen sein.In addition, as shown in FIG. 1 under 16, vertical struts can again be provided in the form of a shaped tube; such a strut 16 is, however, advantageously only with every second or third butt flange 6, i. H. be provided at every second or third junction of two ring segments.

Wie aus der Fig. 3 ersichtlich, sind Haltebretter 17 mittels Schrauben 18 an die Stoßflansche 6 angeschraubt. An die Haltebretter 17 sind dann die Schalbretter 19 angenagelt.As can be seen from FIG. 3, holding boards 17 are screwed onto the butt flanges 6 by means of screws 18. The formwork boards 19 are then nailed to the holding boards 17.

In der Fig. 1 sind noch mit 20 Arbeitsbühnen eingezeichnet, die als solche gemäß dem Stand der Technik ausgeführt sein können ; vorteilhaft sind die Arbeitsbühnen 20 an den erfindungsgemäßen Ringsegmenten der Schalung 1 befestigt.1 also has 20 working platforms, which can be designed as such according to the prior art; The working platforms 20 are advantageously fastened to the ring segments of the formwork 1 according to the invention.

Claims (5)

1. Shuttering ring for shutterings for round structures, comprising ring segments with two radially spaced flexible steel bands (7, 8) which are connected by means of abutting flanges (6), the steel band (7) lying next to the shuttering being unreleasably connected with the abutting flanges (6), preferably welded thereto, whereas the other steel band (8) being length-adjustable. characterized in that the steel band (8) remote from the shuttering is displaceably held at the abutting flanges (6), for example clamped thereto, and that the abutting flanges (6) of adjacent ring segments are connectable by means of screws, for example, the steel bands (7, 8) being bi-steel bands.
2. Shuttering ring according to claim 1, characterized in that the steel bands (8) remote from the shuttering are clamped to the abutting flange (6) only at one end of a ring segment, whereas at the other side, they are welded to the abutting flange (6).
3. Shuttering ring according to claim 1 or 2, characterized in that the steel bands (8) remote from the shuttering are clamped to flanges (12) or bolts of the abutting flanges (6) by means of screws (10).
4. Shuttering ring according to one of claims 1 to 3, characterized in that a tube (14) to which the steel bands (7, 8) are connected is positioned before at least one end of a ring segment, the steel bands (7) near the shuttering being preferably welded and the steel bands (8) remote from the shuttering being preferably clamped to said tube.
5. Shuttering ring according to one of claims 1 to 4, characterized in that holding boards (17) for the shuttering boards (19) are screwed to the abutting flanges (6).
EP83101725A 1982-03-02 1983-02-23 Form ring for shutterings of curved construction Expired EP0087739B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT788/82 1982-03-02
AT0078882A AT399009B (en) 1982-03-02 1982-03-02 Formwork ring for formwork for rotunda

Publications (2)

Publication Number Publication Date
EP0087739A1 EP0087739A1 (en) 1983-09-07
EP0087739B1 true EP0087739B1 (en) 1986-11-12

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ID=3499763

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Application Number Title Priority Date Filing Date
EP83101725A Expired EP0087739B1 (en) 1982-03-02 1983-02-23 Form ring for shutterings of curved construction

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EP (1) EP0087739B1 (en)
AT (1) AT399009B (en)
DE (1) DE3367644D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453065A (en) * 2020-05-07 2020-07-28 唐山佳捷包装机械制造有限公司 Carton packing and turning equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT178716B (en) * 1959-06-24 1954-06-10 Evg Entwicklung Verwert Ges Reinforcing steel for reinforced concrete structures and latticework from this
FR1544889A (en) * 1967-09-29 1968-11-08 Formwork for circular structures
FR2226522A1 (en) * 1973-04-18 1974-11-15 Koch Anc Ets Rieger Sa Ets Adjustably curved steel beam - has longitudinal strips clamped to tops of vert. webs of bottom flange
US4325925A (en) * 1980-06-06 1982-04-20 Tosco Corporation Method for the removal of nitric oxide from gas streams

Also Published As

Publication number Publication date
DE3367644D1 (en) 1987-01-02
AT399009B (en) 1995-03-27
ATA78882A (en) 1994-07-15
EP0087739A1 (en) 1983-09-07

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