A runback backstructure access system for removably providing access between building floors of a building structure. The system includes: first and second tower legs with first and second rosette attachment connectors; a first landing beam mountable between the first and second tower legs; first and second landing beam support connectors connectable respectively to the rosette attachment connectors; at least one building support connector for connecting the first landing beam to the building structure; third and fourth tower legs with third and fourth rosette attachment connectors; a second landing beam mounted between the third and fourth tower legs; third and fourth landing beam support connectors for connecting to the third and fourth rosette attachment connectors; and at least one strut member for connecting the first landing beam to the second landing beam.

Diagonal reinforcement for floor formwork support structures, the support structure comprising height-adjustable props on which diagonal reinforcements are mounted, wherein each of the diagonal reinforcements comprises a projecting pivot close to the upper end thereof, or on the upper end itself, the free end of which pivot is deformed towards one side and can fit progressively into one of the holes in the prop on which the pivot is mounted by means of rotation, it being possible to detach the reinforcement simply by reproducing the insertion movement in reverse.

We provide a platform (10) comprising a deck element (14) having a load-bearing member (18) secured to at least one support beam (16) of the deck element (14), and a plurality of first connection arrangements, and a plurality of deck support members (30) each having a second connection arrangement, wherein the deck element (14) is moveable with respect to the plurality of deck support members (30) to connect the deck element (14) to the plurality of deck support members (30), and wherein each of the first connection arrangements is configured to engage a respective one of the second connection arrangements, the first connection arrangement being one of an engaging member (20) or a receiving formation (35), and the respective second connection arrangement being the other of an engaging member (20) or a receiving formation (35), such that movement of the engaging member (20) in a first engaging direction causes the engaging member (20) to engage the receiving formation (35), to restrict movement of the deck element (14) relative to the respective deck support member (30) in at least one plane.

A scaffolding coupler intended for fixed attachment to the ends of a ledger of a scaffolding system. The scaffolding coupler comprises a foot and a hook which is integrally connected with the foot. The hook has a radial inside contour which is substantially circular segmental. The scaffolding coupler has at least one supporting surface which is formed by the foot and the hook and which, with the scaffolding coupler connected to a standard, rests on a supporting projection of the respective standard. The scaffolding coupler further comprises a pin which is slideably connected to the hook. The pin is configured as a bent pin, having a substantially circular segmental inside contour, which, in use, abuts directly against a pipe wall of a standard to be coupled to the first ledger or a ledger. The bent pin has a substantially circular segmental outside contour which abuts against the substantially circular segmental inside contour of the hook.

An improved intermediate scaffold joint comprising a frame, a first mounting member, a second mounting member, and a vertical stub. The frame has an interior side, an exterior side, and a top side. A lock member is slidable in the interior of the frame. The frame has a rear plate portion that has two openings to accommodate the engagement portions of a horizontal scaffold join, but lacks annular cups.

The invention relates to a temporary scaffolding rest which temporarily supports a standby scaffolding component upon a scaffolding upright in a first temporary disconnected position which is laterally offset from the scaffolding upright for subsequent installation of said standby scaffolding component to a portion of said upright in a second installed position which is laterally inset from the first temporary disconnected position. The temporary scaffolding rest includes a temporary connector for temporarily connecting the temporary scaffolding rest to said portion of said scaffolding upright, and an elongated rest which extends laterally from the temporary connector in order to temporarily support a portion of said standby scaffolding adjacent said portion of said scaffolding upright in said first temporary disconnected laterally offset position ready for subsequent installation to said portion of said scaffolding upright in said second installed position. A method of erecting a row of scaffolding which is higher than the row of scaffolding upon which an installer is positioned is also provided.

A truss frame for a bridge and/or support includes two elongated, parallel longitudinally-extending post pipes having an outer circumference; two parallel crossbars extending perpendicularly to the post pipes; and a length-adjustable elongated diagonal element. The parts are hingedly and detachably bolted to one other. Two parallel connecting plates secured near each post pipe end extend away from one another on a common, imaginary plane containing the post pipe and crossbar longitudinal axes. Each crossbar and diagonal element has opposite ends hingedly and detachably bolted to a connecting plate. At least two rosettes are welded to each post pipe at a distance from one another corresponding to an integer multiple of a module scaffold modular size. A connecting body is welded to the connecting plate near at least two post pipe ends associated with the same crossbar and surrounds the respective post pipe outer circumference.

A cup lock connection system for scaffold equipment advantageously has a locating arrangement for aligning ledgers, braces and other components on the cup lock at predetermined angular positions relative to the scaffold upright. The connecting ledgers, braces and other components preferably have a connecting head receivable on the cup lock connection in one of two orientations. In one orientation the aligning feature is active. In the second orientation the connection can be made without using the alignment functionality.

A catwalk system having a pair of side trusses formed of a top chord and bottom chord connected by a plurality of vertical posts and diagonal posts. The bottom chords have a plurality of joints formed of a bottom plate, opposing side plates and wing plates that form a pocket. These pockets receive an end of floorbeams which are bolted to the side plates. The bottom plate also includes a wind brace section that receives an end of a diagonal wind brace therein. The fabricated side trusses are shipped to the job site where the catwalk is quickly and easily assembled by aligning a pair of side trusses in parallel space alignment and installing floorbeams in the pockets of opposing joints. To provide additional rigidity diagonal wind braces are installed in a zig-zag formation between diagonally opposite joints. This arrangement provides a quickly assembled catwalk that requires minimal assembly.

Folding rail assembly for a scaffold, comprising an upper rail part, a middle rail part, a first post, and a second post which are mutually hingedly connected for adjusting between a folded-in configuration and a folded-out configuration. The first post is provided with a coupling hook structure to suspend the first post from a rosette of a standard of the scaffold in an opening of the rosette with play. At the coupling hook structure a locking hook structure is provided which is configured for, depending on a rotation position of the locking hook structure relative to the rosette, counteracting the first post, by moving up, being brought out of its state suspended from the rosette. By rotation of the rail assembly around a rotation axis parallel to the standard, the locking hook structure can be brought in a locking position to counteract the suspended post coming loose.