A drophead nut for use with formwork building components is disclosed. The disclosed drophead nut maintains standard outward dimensions to allow interoperability with existing systems. The hitting surface of the drophead nut is typically used to align a gap in the nut with a retention pin and thus allow the nut to drop. This in turn allows a mid-plate to fall releasing pressure on a beam (joist and/or main) to allow that beam to be removed. The impact surface of the disclosed drophead nut has been enlarged, reinforced, and possibly repositioned to increase leverage. The resulting drophead nut may allow for reduction in number of impacts on an impact surface to provide alignment of the gap and retention pin, and thus activate compression of the drophead nut.

A joist for a formwork grid construction component system is disclosed. Typical joists (sometimes referred to as secondary beams) span a distance of approximately six feet (when fully connected). By strengthening the joist using an altered profile while maintaining interoperable external dimensions, the span distance may be increased. That is, by forming the joists with the disclosed profile, joists can be made longer (e.g., have an eight foot connected span) and maintain appropriate strength or even have an increased weight tolerance. Formwork grid systems are used in construction of buildings and other structures. Interoperability with existing components is maintained by the disclosed joist profile adhering to the same external functional form factor as existing joists. The external form factor being the same allows joists constructed in accordance with this disclosure to properly function with existing formwork grid construction components.

A method of forming one or more tie rods that includes flattening a main body of a wire in a first selected plane to form a flattened main body, further flattening selected portions of the flattened main body in a second plane perpendicular to the first plane to form one or more break back regions, and then passing the wire through a punch press machine to form one or more coined regions in one or more ends of the wire, thus forming the tie rod.

In a first aspect there is disclosed a support structure assembly (10). The support structure assembly includes a first wall panel (12) operatively associated with an opposing, spaced apart second wall panel. The first wall panel (12) including a channel (14) having two spaced apart channel walls (16) connected via a transverse channel base (18). The channel (14) encloses a resilient body (20).

A building system (5) including a panel system (10) and a formwork system (78). The panel system (10) includes a plurality of modular panels (12) arranged to fit with one another in a predetermined grid arrangement (13) to form side walls of a building in a fitted condition. At least the bottom sides (24) of each of the modular panels (12) includes a plurality of apertures (34) that are arranged at predetermined spaced apart locations along the bottom side (24) so as to coincide with the predetermined grid arrangement (13). The formwork system (78) includes a plurality of modular formwork members (80) that are associated with each of the modular panels (12) to provide a supporting slab (72) having slab apertures (76) to allow coupling with the modular panels (12). Modular panels (12), formwork members (80) and associated methods of use are also disclosed.

A building system (5) including a panel system (10) and a formwork system (78). The panel system (10) includes a plurality of modular panels (12) arranged to fit with one another in a predetermined grid arrangement (13) to form side walls of a building in a fitted condition. At least the bottom sides (24) of each of the modular panels (12) includes a plurality of apertures (34) that are arranged at predetermined spaced apart locations along the bottom side (24) so as to coincide with the predetermined grid arrangement (13). The formwork system (78) includes a plurality of modular formwork members (80) that are associated with each of the modular panels (12) to provide a supporting slab (72) having slab apertures (76) to allow coupling with the modular panels (12). Modular panels (12), formwork members (80) and associated methods of use are also disclosed.

A tool for removing, from a set concrete wall, a concrete form of a type having a discontinuous structure is provided. The tool comprises a lever arm, comprising an engagement portion and a grasping portion. The engagement portion is positioned near one end of the lever arm, and the grasping portion is positioned near an opposite end of the lever arm. An engagement member is secured to the engagement portion. The engagement member is configured to engage the discontinuous structure. A pivoting member is mounted on the lever arm proximate the engagement portion. The pivoting member defines a pivot point around which the lever arm may rotate, whereby the engagement member will apply force to the discontinuous structure tending to pull the concrete form away from the set concrete wall when the engagement portion of the lever arm is pulled away from the set concrete wall when the engagement member is in engagement with the discontinuous structure.

A connection assembly for formwork elements includes a counterplate, a bolt, and a bolt block. The counterplate can include a plurality of surfaces having differing heights that selectively engage with a waler during engagement or disengagement of the bolt from the formwork element. The formwork element can include a J-shaped waler that allows for easy climbing and/or hanging of objects on a site. The connection assembly can include a bolt block that removably engages a formwork element.

A stacking clip suitable for use with a concrete forming system having one or more frame elements having one or more ribs formed on a rail. The stacking clip allows an extension component to be coupled to the stacking clip and to hence extend the height or the width of the frame element.

A stacking clip suitable for use with a concrete forming system having one or more frame elements having one or more ribs formed on a rail. The stacking clip allows an extension component to be coupled to the stacking clip and to hence extend the height or the width of the frame element.