A prop head assembly is configured to be fixedly connected to a vertically-extending construction column, and also configured to support a horizontal construction beam assembly once the prop head assembly is fixedly connected to the vertically-extending construction column. The prop head assembly includes a first beam-locating feature and a second beam-locating feature. The first beam-locating feature is configured to selectively receive, at least in part, a beam-reference portion. The second beam-locating feature is also configured to receive the beam-reference portion once the beam-reference portion is inadvertently displaced away from the first beam-locating feature and from the vertically-extending construction column and toward the second beam-locating feature.

A prop head assembly is configured to be fixedly connected to a vertically-extending construction column, and also configured to support a horizontal construction beam assembly once the prop head assembly is fixedly connected to the vertically-extending construction column. The prop head assembly includes a first beam-locating feature and a second beam-locating feature. The first beam-locating feature is configured to selectively receive, at least in part, a beam-reference portion. The second beam-locating feature is also configured to receive the beam-reference portion once the beam-reference portion is inadvertently displaced away from the first beam-locating feature and from the vertically-extending construction column and toward the second beam-locating feature.

Disclosed is a prop head for connecting a formwork prop to an elevated concrete slab formwork waler table or the like; said waler table having a plurality of support beams having a cavity or gap space adapted to receive an upper part of said prop head, said table being adapted to receive a bolt across said gap or cavity; wherein said prop head has: a central plate having a front end, a rear end and two sides, said sides having downwardly projecting lower L-shape angle brackets therefrom, said brackets being adapted to receive the top of said prop in a horizontally sliding manner from said front end; a downwardly projecting stop wall from the rear end of said central plate, adapted to abut the upper part of said prop; an upper turret, rising from said lower plate, adapted to fit in said cavity or gap space; and having one or more laterally located slots or holes adapted to correspond with the position of complementary holes or slots in said support beams; and a hole or slot in said central plate adjacent said front end and adapted to receive a locking pin, bolt or wedge thereby to prevent said prop being removed from said brackets. Also disclosed is a method of first securely connecting the prop to a support beam of a waler table and subsequently sliding the T-shaped end of a prop into connection with the prop head and then securing with a locking member.

A formwork system for supporting forming panels to form a horizontal concrete surface. The system includes a height-adjustable support having a central upstanding member providing a vertical abutment surface and a support arm having an inclined portion extending up and away from said central upstanding member. The system also includes a beam having a transverse bar proximate an end. The transverse bar is supported by the inclined portion of the support arm so that said transverse bar moves laterally relative to the inclined portion as the support arm is moved vertically. The beam also has a foot extending from the end of the beam and abutting the abutment surface. The abutment surface opposes lateral movement of the beam relative to the upstanding member.

A support means for a ceiling support for supporting a ceiling formwork panel. The support means has at least one upper elongated support element and a lower elongated support element. The support elements are rotationally connected to one another, with the support elements being able to be brought into a working position in which the support elements are preferably aligned coaxially with one another. The support elements can be rotated into a tilted position in which the support elements are rotated relative to one another by a tilting angle. A locking element is provided, which secures the support elements against rotating in the working position, the locking element bridging a connecting region between the two support elements in the working position. The locking element can be brought into a release position in which the locking element is arranged outside the connecting region.

An apparatus includes a construction column configured to extend perpendicular relative to a ground surface, a construction beam assembly configured to be positioned perpendicular relative to the construction column, and a prop head assembly configured to be fixedly connected to an upper end portion of the construction column and to support the end portion of the construction beam assembly. The prop head assembly defines first and second recesses configured to selectively receive a pin of the construction beam assembly therein.

An apparatus includes a construction column configured to extend perpendicular relative to a ground surface, a construction beam assembly configured to be positioned perpendicular relative to the construction column, and a prop head assembly configured to be fixedly connected to an upper end portion of the construction column and to support the end portion of the construction beam assembly. The prop head assembly defines first and second recesses configured to selectively receive a pin of the construction beam assembly therein.

A formwork system includes a height-adjustable support for supporting a beam in substantially horizontal or slightly inclined position that includes a support with a central upstanding member and a support arm. The support arm has a rounded socket, and the beam has a cylindrical mounting pin proximate its end. The socket and mounting pin are shaped and sized so that the mounting pin is retained within the socket and they together form a hinge joint. As the mounting pin is retained by the socket of the support arm, it does not shift laterally relative to the support arm as the support arm is vertically adjusted. The variance in the gap between laterally secured forming panels as a response to vertical shift of the support is dependent on the incline angle of the beam and the dimensions of the beam and the support arm. This is predictable within a defined tolerance.

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.

The invention relates to a ceiling formwork and a method for producing a ceiling element, comprising the following steps: arranging two ceiling supports on a floor, connecting a first end region of a ceiling formwork frame to the two ceiling supports such that the ceiling formwork frame is arranged in an intermediate position inclined downward from the first end region in the direction of a second end region, connecting a lost ceiling plate to the ceiling formwork frame arranged in the intermediate position, pivoting the second end region of the ceiling formwork frame up, together with the lost ceiling plate, supporting the second end region of the ceiling formwork frame that has been pivoted up by at least one additional ceiling support and casting the ceiling element, together with the lost ceiling plate, on the ceiling formwork frame.