Support waler and method of striking formwork
AssigneePERI Formwork Systems, Inc.
InventorsDavid Magnusen, Brad Keown
Life of this patent
Estimating the term…
Abstract
A formwork assembly including a plurality of formwork elements defining a concrete-receiving space, at least one of the plurality of formwork elements comprising a first panel, at least one support waler configured to receive at least one vertical fixation element and comprising a second panel, a horizontal fixation element configured to engage with the first panel and the second panel such that rotation of the horizontal fixation element allows for the at least one vertical fixation element to be freely removed from the at least one support waler after curing of concrete in the concrete-receiving space.
Claims20
A formwork assembly, comprising:
- a plurality of formwork elements defining a concrete-receiving space, at least one of the plurality of formwork elements comprising a first panel defining a first panel hole;
- at least one support waler configured to receive at least one vertical fixation element and comprising a second panel defining a second panel hole corresponding to the first panel hole;
- and
- a horizontal fixation element configured to engage with the first panel and the second panel such that rotation of the horizontal fixation element allows for the at least one vertical fixation element to be freely removed from the at least one support waler after curing of concrete in the concrete-receiving space,
- wherein at least one of:
- the first panel hole is threaded and the second panel hole is unthreaded;
- or
- the first panel hole and the second panel hole are not threaded, and the horizontal fixation element is configured to engaged with a nut arranged on a rear portion of the first panel.
A method of striking a formwork assembly, comprising:
- engaging at least one support waler with at least one formwork element via at least one vertical fixation element;
- engaging a horizontal fixation element with a first panel of the at least one formwork element and a second panel of the support waler;
- pouring fresh concrete into a concrete-receiving space defined by the at least one formwork element;
- rotating the horizontal fixation element such that a portion of the support waler deflects;
- freely removing the at least one vertical fixation element from the at least one formwork element based upon the deflection of the portion of the support waler;
- subsequently rotating the horizontal fixation element after freely removing the first vertical pin;
- and
- freely removing at least a second vertical pin from the at least one formwork element.
A formwork assembly, comprising:
- a plurality of formwork elements, at least a portion of one of the plurality of formwork elements being curved such that the plurality of formwork elements defines an at least partially curved concrete-receiving space, at least one of the plurality of formwork elements comprising a first panel, at least two adjacent formwork elements of the plurality of formwork elements defining a seam where side rails of the at least two adjacent formwork elements meet and abut;
- at least one support waler comprising a second panel and a waler fixed to the second panel, the support waler being securable within a horizontal space defined by at least two walers of the plurality of formwork elements such that the waler of the support waler spans the seam defined between adjacent formwork elements.
Dependencies are inferred from the claim text.