EP0480094A1 - Support pour coffrage de béton - Google Patents

Support pour coffrage de béton Download PDF

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Publication number
EP0480094A1
EP0480094A1 EP90119569A EP90119569A EP0480094A1 EP 0480094 A1 EP0480094 A1 EP 0480094A1 EP 90119569 A EP90119569 A EP 90119569A EP 90119569 A EP90119569 A EP 90119569A EP 0480094 A1 EP0480094 A1 EP 0480094A1
Authority
EP
European Patent Office
Prior art keywords
support
support section
sleeve
nut
section
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.)
Withdrawn
Application number
EP90119569A
Other languages
German (de)
English (en)
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.)
THRESPAL Ltd
Original Assignee
THRESPAL Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by THRESPAL Ltd filed Critical THRESPAL Ltd
Priority to EP90119569A priority Critical patent/EP0480094A1/fr
Publication of EP0480094A1 publication Critical patent/EP0480094A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • 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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut

Definitions

  • the invention relates to a concrete formwork support.
  • a typical example of a concrete formwork prop is a slab formwork prop. If, for example, a building ceiling is to be concreted, a large number of columns are built on an existing ceiling, which support the ceiling formwork arranged on it when concreting. After the concrete slab has set, the slab formwork supports are removed.
  • slab formwork supports are known in which a so-called impact disc rests on a bolt inserted through a transverse bore in a support section. The contact surface between the striking disc and the bolt does not run in a plane that is perpendicular to the longitudinal axis of the column, but at an angle to such a plane.
  • the impact disk is turned in the release direction by hammer blows, the head of the support lowers.
  • This version is called the quick lowering device.
  • Such tensile supports can be used, for example, as an inclined support for wall formwork, where they must be able to transmit both compressive and tensile forces.
  • the aim of the invention is a concrete formwork support that is both finely adjustable and has a quick lowering device.
  • a version is to be available in which the support is overall tensile.
  • the support according to the invention can be used very universally in a wide variety of formwork construction tasks. It is no longer necessary to keep several different types of supports at the construction site. For companies that erect concrete formwork, purchasing and warehousing are much more efficient.
  • a preferred way of creating the described engagement between the sleeve and the nut is that the sleeve has two essentially diametrically arranged claws which engage around a collar of the nut.
  • the nut When the nut is turned with its collar all the way to the end of the second support section, the nut can be pushed from the side between the two claws of the sleeve. The nut can then be screwed onto the thread of the second support section in the direction away from the first support section, as a result of which the engagement between the sleeve and the nut, which is positive relative to axial movement apart and allows relative rotation, is accomplished.
  • At least one of the two claws is preferably made so large that it provides a striking surface, in particular for a hammer, for rotating the sleeve.
  • the support according to the invention can be supplemented by a foot section. A preferred example of this is described below.
  • the support has a third support section and a coupling nut which is in threaded engagement with the second support section and is in engagement with the third support section by means of a bayonet catch.
  • the coupling nut thus creates a tensile connection between the second and the third support section.
  • the third support section can be so long that the overall support is formed by the described three support sections, optionally supplemented by a foot section. However, it is also possible to make the second support section so long that no third support section is required.
  • the support has a fourth support section, which has an abutment collar and on one side of the abutment collar has an insertion region inserted into the second support section or the third support section.
  • the fourth support section represents an extension section of the support and can either be combined with the first three support sections (in particular if a particularly long support is required) or can be combined with only the first two support sections.
  • the fourth support section can be inserted non-tensile in the second support section or the third support section. However, it can also be connected to the relevant neighboring support section in a tensile manner, for example by means of a bolt inserted through corresponding transverse holes.
  • the support according to the invention can preferably be used as a slab formwork support, as an inclined support for wall formwork, but also as a formwork table support.
  • a formwork table support In the latter case, several, for example four, supports support a formwork table;
  • a ceiling formwork can be built up from several formwork tables side by side. All in all, the formwork tables can be moved to a different location in a building under construction more efficiently than when working with columns and ceiling formwork attached to them.
  • the head region of the column section (third or fourth column section) which comes into engagement with the formwork is preferably not widened, so that it can be easily inserted between two formwork beams.
  • the support can be provided with spreading legs at the lower end, which facilitates the formwork construction.
  • support consists essentially of a bottom section 4, a first support section 6, a second support section 8, a third support section 10, a fourth support section 12, a nut 14, and a sleeve 16.
  • the first support section 6 consists of a tube which has transverse holes 18 at a mutual distance in the longitudinal direction of the tube of, for example, 10 cm.
  • the foot section 4 consists of an upwardly projecting, hollow-cylindrical insertion area 20 which is inserted into the first support section 6 from below, and a widened foot area 22 in the form of a plate.
  • the insertion region 20 can have a transverse hole 24.
  • a pin (not shown) can be inserted through this transverse hole 24 and a corresponding transverse hole 18 in the first support section.
  • the second Stauerenabschntit 8 is a tube which is provided with an external thread throughout in the illustrated embodiment.
  • the second support section 8 has a pair of diametrically opposed elongated holes 26, which extend in the longitudinal direction of the support 2.
  • the nut 14, which has an enlarged collar 28 at its lower end, is placed on the external thread.
  • the nut 14 has diametrically opposite two ears 30, each with a bore in the tangential direction.
  • the sleeve 16 is arranged below the nut 14 on the second support section 8.
  • the upper end region of the sleeve 16 is designed as a collar 32 which is essentially the same size as the collar 28 of the nut 14.
  • the sleeve 16 has in one piece two diametrically opposed claws 34 which engage around the collar 28 of the nut 14.
  • the inner profile of the claws 34 - seen in plan view - is not circular, but is formed by two planes which extend tangentially to the support 2. As a result, the collar 28 of the nut 14 can be pushed between the two claws 24 in front of the drawing plane of FIG.
  • the sleeve 16 has no internal thread and has an inner diameter which is slightly larger than the outer diameter of the second support section 8, so that the sleeve 16 can rotate with little play on the second support section 8 and move in the axial direction.
  • a bolt 38 is inserted through one of the transverse bores 18 of the first support section 6 and through the pair of elongated holes 26 and through a transverse bore 36 in the sleeve 16, as a result of which the first support section 6 and the sleeve 16 are connected to one another.
  • the first support section 6 and the second support section 8 are connected to one another in a tensile and pressure-tight manner via the engagement between the sleeve 16 and the nut 14.
  • the bolt 38 can also be inserted below the sleeve 16 through a transverse hole 18 of the first support section 6 and the elongated hole pair 26, so that the lower end face 40 of the sleeve on the bolt 38 rests as an abutment.
  • the end face 40 has a first region 40a, which lies essentially in a plane running at right angles to the longitudinal axis of the column, and has a second region 40b, which adjoins in the circumferential direction and gradually shrinks in the direction of the nut 14.
  • the sleeve 16 If the sleeve 16 is rotated counterclockwise (viewed from above) by a certain angular range, starting from the state that the first region 40a abuts against the bolt 38 from above, the sleeve 16 can move because of the course of the second region 40b the face 40 move down. The entire second support section 8 follows this movement. In this way, a quick lowering device is created.
  • the claws 34 are so large that they represent striking surfaces for a hammer in order to rotate the sleeve 16.
  • the nut 14 is not also rotated, but there is a relative rotation between the collars 32 and 28.
  • the third support section 10 is a tube with essentially the same outer diameter as the second support section 8.
  • the second support section 8 and the third support section 10 are connected to one another by a coupling nut 42. 4 that the coupling nut is provided with an internal thread 44 in approximately its lower half, which fits on the external thread of the second support section 8.
  • the coupling nut 42 In its upper half, the coupling nut 42 has bayonet locking passages 46 on the inner circumference.
  • the third support section 10 has four arcuate projections 48 distributed around the circumference at the lower end. The projections 48 fit into the bayonet locking passages 46.
  • the tube of the third support section 10 can be inserted into the coupling nut 42 from above at a specific relative rotational position and locked in the coupling nut 42 by turning it by about 30 to 50. If, before or after, the coupling nut 42 is screwed onto the second support section, the second support section 8 and the third support section 10 are in face-to-face contact with one another and are fixedly connected to one
  • the fourth support section 12 is a tube with an outer diameter that is slightly smaller than the inner diameter of the tube of the third support section 10. A little above its lower end, the fourth support section 12 has an abutment collar 50 which is fixedly connected to the tube of the fourth support section 12. With the area 52 located below the abutment collar 50, the fourth support section is inserted into the third support section 10.
  • the fourth support section 12 has transverse holes 54 so that it can be connected to the third support section 10 in a tensile manner by means of inserted bolts (not shown) and / or can be connected to lower supports 56 of the ceiling formwork 60 (FIG. 7).
  • the support 2 need not necessarily have the third support section 10 and the fourth support section 12. If the second support section 8 is long enough (the external thread of which may be limited to the lower end region of the second support section 8), the support 2 can be used with the first support section 6 and the second support section 8. If the third support section 10 is made long enough, the fourth support section 12 can be dispensed with. Instead of providing the third support section 10, the fourth support section 12 can be inserted into the second support section 8 from above.
  • the coupling nut 42 and the abutment collar 50 are essentially the same, and this outside contour is best seen in FIG. 5.
  • Each pocket opening 64 is provided with an internal thread.
  • Struts 66 can be attached there using screws or bolts.
  • FIG. 8 shows a formwork table 70 which has four supports 2 arranged in a square. These supports 2 are connected to one another by struts 66, which results in an overall stable structure.
  • FIG. 9 shows the use of the support 2 as an inclined support for a wall formwork 72.
  • Two supports 2 according to the invention are used, one support 2 is arranged steeper and leads to the upper area of the wall formwork 72, and one support 2 is arranged at a lower incline and towards the foot area of the wall formwork 72 leading.

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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)
EP90119569A 1990-10-12 1990-10-12 Support pour coffrage de béton Withdrawn EP0480094A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP90119569A EP0480094A1 (fr) 1990-10-12 1990-10-12 Support pour coffrage de béton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90119569A EP0480094A1 (fr) 1990-10-12 1990-10-12 Support pour coffrage de béton

Publications (1)

Publication Number Publication Date
EP0480094A1 true EP0480094A1 (fr) 1992-04-15

Family

ID=8204610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119569A Withdrawn EP0480094A1 (fr) 1990-10-12 1990-10-12 Support pour coffrage de béton

Country Status (1)

Country Link
EP (1) EP0480094A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869235A1 (fr) * 1997-04-04 1998-10-07 Ingenieria de Encofrados y Servicios, S.L. Perfectionnements aux étais
CN111561177A (zh) * 2020-05-27 2020-08-21 衢州学院 一种土木工程建筑支柱
CN113356575A (zh) * 2021-06-29 2021-09-07 晟通科技集团有限公司 单顶撑结构及支撑系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190270A (en) * 1966-07-16 1970-04-29 Burton Delingpole And Company Improvements in or relating to Adjustable Props
DE1909499A1 (de) * 1969-02-26 1970-09-10 Alfred Schoenfeldt Verlaengerungsstueck fuer Rohrgerueststiele
DE2235304A1 (de) * 1972-07-19 1974-02-07 Guenther Doll Baustuetze
DE2742871A1 (de) * 1977-09-23 1979-04-05 Erwin Foell Zug- und druckfeste geruestspindel
DE8232446U1 (de) * 1982-11-19 1983-05-11 Hünnebeck GmbH, 4030 Ratingen Stahlrohrstütze für Deckenschalungen oder dergleichen mit Schnellabsenkung
DE3327542A1 (de) * 1983-07-30 1985-02-14 Gerhard 4040 Neuss Strahl Teleskopstuetze
EP0390128A1 (fr) * 1989-03-30 1990-10-03 Peri-Werk Artur Schwörer GmbH & Co.KG Support télescopique de longueur réglable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190270A (en) * 1966-07-16 1970-04-29 Burton Delingpole And Company Improvements in or relating to Adjustable Props
DE1909499A1 (de) * 1969-02-26 1970-09-10 Alfred Schoenfeldt Verlaengerungsstueck fuer Rohrgerueststiele
DE2235304A1 (de) * 1972-07-19 1974-02-07 Guenther Doll Baustuetze
DE2742871A1 (de) * 1977-09-23 1979-04-05 Erwin Foell Zug- und druckfeste geruestspindel
DE8232446U1 (de) * 1982-11-19 1983-05-11 Hünnebeck GmbH, 4030 Ratingen Stahlrohrstütze für Deckenschalungen oder dergleichen mit Schnellabsenkung
DE3327542A1 (de) * 1983-07-30 1985-02-14 Gerhard 4040 Neuss Strahl Teleskopstuetze
EP0390128A1 (fr) * 1989-03-30 1990-10-03 Peri-Werk Artur Schwörer GmbH & Co.KG Support télescopique de longueur réglable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869235A1 (fr) * 1997-04-04 1998-10-07 Ingenieria de Encofrados y Servicios, S.L. Perfectionnements aux étais
CN111561177A (zh) * 2020-05-27 2020-08-21 衢州学院 一种土木工程建筑支柱
CN113356575A (zh) * 2021-06-29 2021-09-07 晟通科技集团有限公司 单顶撑结构及支撑系统

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