CA2490827A1 - Slab formwork systems - Google Patents

Slab formwork systems Download PDF

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Publication number
CA2490827A1
CA2490827A1 CA002490827A CA2490827A CA2490827A1 CA 2490827 A1 CA2490827 A1 CA 2490827A1 CA 002490827 A CA002490827 A CA 002490827A CA 2490827 A CA2490827 A CA 2490827A CA 2490827 A1 CA2490827 A1 CA 2490827A1
Authority
CA
Canada
Prior art keywords
support beams
slab formwork
formwork system
panels
members
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.)
Granted
Application number
CA002490827A
Other languages
French (fr)
Other versions
CA2490827C (en
Inventor
Peter Vanagan
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.)
Hy-Rise Scaffolding Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2490827A priority Critical patent/CA2490827C/en
Publication of CA2490827A1 publication Critical patent/CA2490827A1/en
Application granted granted Critical
Publication of CA2490827C publication Critical patent/CA2490827C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E04G11/38—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 for plane ceilings of concrete
    • 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
    • E04G11/486—Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads
    • 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
    • E04G11/54—Girders, beams, or the like as supporting members for forms of extensible type, with or without adjustable supporting shoes, fishplates, or the like
    • E04G11/56—Girders, beams, or the like as supporting members for forms of extensible type, with or without adjustable supporting shoes, fishplates, or the like of telescopic type
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Landscapes

  • 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)

Abstract

A slab formwork system includes formwork panels each having a pair of parallel, elongate side members, elongate intermediate members extending between and interconnecting the side members and a sheet of material supported on the side and intermediate members. The side members have undersides formed with a longitudinally extending, downwardly open recesses. Connecting clips retained in the downwardly open recesses are engaged with support beams carrying panels to secure the formwork panels to the support beams.

Claims (16)

1. A slab formwork system, comprising:-formwork panels;
the formwork panels each having a pair of parallel, elongate side members, elongate intermediate members extending between and interconnecting the side members and a sheet of material supported on the side and intermediate members;
the side members having undersides formed with a longitudinally extending, downwardly open recesses:
panel support beams carrying the panels; and connecting clips retained in the downwardly open recesses and engaged with the support beams to secure the formwork panels to the support beams.
2. A slab formwork system as claimed in claim 1, wherein the connecting clips include bolts having heads retained in the downwardly open recesses and U-shaped retainer members secured to the framework panels by the bolts, the panel support beams having laterally outwardly projecting flanges and the retainer members being held in clamping engagement with the outwardly projecting flanges.
3. A slab formwork system as claimed in claim 1, including panel retainer projections extending from the downwardly open recesses into engagement with the panel support beams.
4. A slab formwork system as claimed in claim 3, wherein the panel support beams have upwardly open recesses in the tops of the panel support beams and the panel retainer projections engage in the upwardly open recesses.
5. A slab formwork system as claimed in any one of claims 1 to 4, including shores supporting the support beams, the panel support beams having upwardly facing top surfaces, upwardly open, longitudinally extending recesses between the top surfaces and resiliently deformable strips of elastomeric material extending along the recesses, and the formwork panels having downwardly protruding panel retainer projections embedded in the resiliently deformable strips.
6. A slab formwork system as claimed in claim 5, wherein the panel retainer projections are tapered so as to urge adjacent pairs of the panels towards one another as the panel retainer projections become embedded in the strips.
7. A slab formwork system as claimed in claim 5, wherein beams have pairs of flanges spaced apart by gaps, the recesses being upwardly open through the gaps, and wherein the gaps are closed by the resiliently deformable strips.
8. A slab formwork system as claimed in claim 7, wherein the flanges are shaped, within the recesses, to interfit with and retaining the resiliently deformable strips.
9. A slab formwork system as claimed in claim 5, including connectors securing the formwork panels to the panel support beams.
10. A slab formwork system as claimed in claim 9, wherein the panel support beams have laterally outwardly projecting flanges and the connectors comprise connector strips secured to the formwork panels and engaging the outwardly projecting flanges.
11. A slab formwork system as claimed in claim 5, wherein the formwork panels have elongate side members formed as extrusions, the extrusions have longitudinal, downwardly open recesses and the panel retainer projections extend from ends of the downwardly open recesses.
12. A slab formwork system as claimed in claim 11, including connectors engaged in the downwardly open recesses and in retaining engagement with the support beams.
13. A slab formwork system as claimed in any one of claims 1 to 12, wherein the panel support beams are telescopically longitudinally adjustable to allow corresponding variation of the spacings of the shores.
14. A slab formwork system as claimed in claim 13, wherein the ....... support beams have telescopically extendable extension members and fasteners for securing the extension members relative to the ...... support beams, the system including dropheads having bearing members for supporting engagement with the extension members.
15. A slab formwork system as claimed in any one of claims 1 to 13, wherein the shores have dropheads and the dropheads each have a first component, the first component having a prophead between an adjacent pair of the formwork panels and a second component in supporting engagement with the formwork panels; and the first and second components having mutually engaged screw threads allowing the second component to be lowered relative to the first component for releasing the formwork panels.
16. A slab formwork system as claimed in claim 15, wherein the first component comprises a screw and a nut in threaded engagement with the screw, the prophead being at an upper end of the screw, and the second component comprises a sleeved extending around the screw and supported on the nut, first beam supports projecting from opposite sides of the sleeve and supporting the panel support beam and second beam supports projecting to opposite sides of the sleeve at right angles to the first beam supports, the slab formwork system further comprising filler beams extending between the formwork panels and supported on the second beam supports.
CA2490827A 2004-07-21 2004-07-21 Slab formwork systems Active CA2490827C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2490827A CA2490827C (en) 2004-07-21 2004-07-21 Slab formwork systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002475339A CA2475339C (en) 2004-07-21 2004-07-21 Slab formwork systems
CA2490827A CA2490827C (en) 2004-07-21 2004-07-21 Slab formwork systems

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002475339A Division CA2475339C (en) 2004-07-21 2004-07-21 Slab formwork systems

Publications (2)

Publication Number Publication Date
CA2490827A1 true CA2490827A1 (en) 2004-12-05
CA2490827C CA2490827C (en) 2011-09-20

Family

ID=33557697

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002493492A Abandoned CA2493492A1 (en) 2004-07-21 2004-07-21 Slab formwork systems
CA2490827A Active CA2490827C (en) 2004-07-21 2004-07-21 Slab formwork systems
CA002475339A Active CA2475339C (en) 2004-07-21 2004-07-21 Slab formwork systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002493492A Abandoned CA2493492A1 (en) 2004-07-21 2004-07-21 Slab formwork systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002475339A Active CA2475339C (en) 2004-07-21 2004-07-21 Slab formwork systems

Country Status (1)

Country Link
CA (3) CA2493492A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101956455A (en) * 2010-04-23 2011-01-26 吴方伯 Adjustable support structural member for supporting building template
KR200486857Y1 (en) * 2013-02-18 2018-07-09 도카 게엠베하 Formwork Panel and Formwork System
SG11201506462SA (en) * 2013-02-18 2015-09-29 Doka Gmbh Stripping head and formwork system
CN103276893B (en) * 2013-06-04 2016-05-04 河南国基建设集团有限公司 The construction method of rigidity building template support combinations structure
CN104989096A (en) * 2015-07-15 2015-10-21 江苏雷格森建筑科技有限公司 Keel formwork system
DE102016204633A1 (en) 2016-03-21 2017-09-21 Peri Gmbh Ceiling table and ceiling formwork with such a ceiling table
CN107642232B (en) * 2017-09-28 2022-11-22 中国建筑股份有限公司 Horizontal connecting structure and system for formwork support and construction method
CA2994076A1 (en) * 2018-02-06 2019-08-06 Brand Shared Services Llc Formwork system
CA3030905A1 (en) * 2019-01-18 2020-07-18 Brand Shared Services Llc Formwork system
GR1010013B (en) * 2020-06-02 2021-05-27 Reko Beton Ιδιωτικη Κεφαλαιουχικη Εταιρεια Sliding panel for the construction of reinforced concrete roof
CN114016732B (en) * 2021-12-03 2023-05-16 晟通科技集团有限公司 Floor form and floor form system

Also Published As

Publication number Publication date
CA2475339C (en) 2005-09-13
CA2490827C (en) 2011-09-20
CA2493492A1 (en) 2004-12-05
CA2475339A1 (en) 2004-12-05

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