Detachable fastening system for two formwork beams, an upper beam, a lower beam, a device for connecting the upper beam to the lower beam. Said device comprises a resilient one-piece structure having two curved arms which connect zones intended to press one of said beams in support zones and zones intended to be fastened to the other beam, the system having connection means which connect the device to said beam such that it cannot be lost, and said device having the ability to slide relative to the beam to which it is fastened, the system having means for increasing the friction between the lower beam and the upper beam.

Detachable fastening system for two formwork beams, an upper beam, a lower beam, a device for connecting the upper beam to the lower beam. Said device comprises a resilient one-piece structure having two curved arms which connect zones intended to press one of said beams in support zones and zones intended to be fastened to the other beam, the system having connection means which connect the device to said beam such that it cannot be lost, and said device having the ability to slide relative to the beam to which it is fastened, the system having means for increasing the friction between the lower beam and the upper beam.

A formwork for performing horizontal castings for the provision of floors, of the type comprising a series of props, and supporting heads to be arranged on the props for the resting of panels designed to form a surface for a concrete casting, each panel comprising at least two longitudinal profiles, for resting on the supporting heads; each one of the longitudinal profiles comprises a central body, a first longitudinal part, for the fixing of the transverse elements, and an opposite second longitudinal part, each one of the supporting heads comprises a plate-like base from which there extends at least one lateral shoulder for the resting of the central body of a longitudinal profile in an intermediate configuration for assembly or disassembly, and a central protrusion, which protrudes from the same side as the lateral shoulders.

A formwork for performing horizontal castings for the provision of floors, of the type comprising a series of props, and supporting heads to be arranged on the props for the resting of panels designed to form a surface for a concrete casting, each panel comprising at least two longitudinal profiles, for resting on the supporting heads; each one of the longitudinal profiles comprises a central body, a first longitudinal part, for the fixing of the transverse elements, and an opposite second longitudinal part, each one of the supporting heads comprises a plate-like base from which there extends at least one lateral shoulder for the resting of the central body of a longitudinal profile in an intermediate configuration for assembly or disassembly, and a central protrusion, which protrudes from the same side as the lateral shoulders.

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

According to one embodiment a horizontal formwork system is provided that includes a pair of parallel longitudinal beams on which a safety means is coupled for protecting against falling. The safety means includes a safety structure that is located below the formwork panels. The safety structure at least partially covers a gap existing immediately after a last assembled formwork panel and displacement means for moving the safety structure in a longitudinal direction along a length of the longitudinal beams. The displacement means is configured to be operated on by an operator allow to move the safety structure to cover the gap immediately after the last assembled formwork panel. A safety method for installing formwork panels is also provide that may include the steps of assembling at least one guide to the corresponding longitudinal beam and coupling a safety structure having at least one guided element to the longitudinal beams through a guide, and sliding the safety structure along the guide to cover the gap.

According to one embodiment a horizontal formwork system is provided that includes a pair of parallel longitudinal beams on which a safety means is coupled for protecting against falling. The safety means includes a safety structure that is located below the formwork panels. The safety structure at least partially covers a gap existing immediately after a last assembled formwork panel and displacement means for moving the safety structure in a longitudinal direction along a length of the longitudinal beams. The displacement means is configured to be operated on by an operator allow to move the safety structure to cover the gap immediately after the last assembled formwork panel. A safety method for installing formwork panels is also provide that may include the steps of assembling at least one guide to the corresponding longitudinal beam and coupling a safety structure having at least one guided element to the longitudinal beams through a guide, and sliding the safety structure along the guide to cover the gap.

A formwork support system comprising: a first pair of support props, a second pair of support props, a longitudinal beam with opposite ends attached to the first pair of support props, a longitudinal support with opposite ends attached to the second pair of support props, a cantilever beam extending transversely to the longitudinal beam and the longitudinal support, respectively, the cantilever beam being supported on an upper side of the longitudinal support, the cantilever beam having a first end secured to the longitudinal beam.

A formwork support system comprising: a first pair of support props, a second pair of support props, a longitudinal beam with opposite ends attached to the first pair of support props, a longitudinal support with opposite ends attached to the second pair of support props, a cantilever beam extending transversely to the longitudinal beam and the longitudinal support, respectively, the cantilever beam being supported on an upper side of the longitudinal support, the cantilever beam having a first end secured to the longitudinal beam.

A coupler comprises a first channel having a first axis of extension in a first horizontal direction and a second channel having a second axis of extension in the first horizontal direction. The second axis of extension is parallel to and spaced apart from the first axis of extension in a second horizontal direction. The second axis of extension has a pitch angle relative to the first axis of extension in a vertical direction, the pitch angle being less than 180 degrees. The first and second channels each include head-mounting features, the head-mounting features constructed and arranged to retain an elongated head to the coupler while permitting movement of the elongated head relative to the coupler in the first horizontal direction.