A sidewalk shed and system includes a plurality of columns and a plurality of major beams. Each column includes one to four column face plate assemblies, based on the application, for attachment to major beams. Each column face plate assembly comprises a column face plate, trapezoidal-shaped top and bottom gussets, and a vertical plate support, which in combination support the column face plate in a spaced-apart relation to a column. Major beam face plates attached to the opposing ends of a major beam releasably engage the column face plate assemblies using fasteners. Minor beams span opposing major beams. The minor beams may support other sidewalk shed structures, such as decking, parapets, lighting, signage, and other scaffolding.

A support frame that can be assembled automatically comprises multiple straight rod assemblies and multiple linkage assemblies. The straight rod assemblies are arranged at intervals in a rectangular shape. Each linkage assemblies connects two straight rod assemblies and comprises multiple upper rods, one joint seat connected to the upper rods, multiple lower rods, and one connecting seat connected to the lower rods. When the joint seat is attached to the connecting seat, the support frame and the straight rod assemblies are expanded. When the joint seat is detached from the connecting seat, the support frame and the straight rod assemblies are folded. All aforementioned actions can be easily achieved by operating a pressure ring assembly, which is already attached on the straight rod assemblies. The support frame is convenient for storage, saves transportation space, and can be automatically stacked and set up scaffolding with automated equipment.

A support frame that can be assembled automatically comprises multiple straight rod assemblies and multiple linkage assemblies. The straight rod assemblies are arranged at intervals in a rectangular shape. Each linkage assemblies connects two straight rod assemblies and comprises multiple upper rods, one joint seat connected to the upper rods, multiple lower rods, and one connecting seat connected to the lower rods. When the joint seat is attached to the connecting seat, the support frame and the straight rod assemblies are expanded. When the joint seat is detached from the connecting seat, the support frame and the straight rod assemblies are folded. All aforementioned actions can be easily achieved by operating a pressure ring assembly, which is already attached on the straight rod assemblies. The support frame is convenient for storage, saves transportation space, and can be automatically stacked and set up scaffolding with automated equipment.

An elevated worker support platform includes a main platform and an extension assembly having a longitudinal sliding extension frame and an upwardly folding extension platform supported on the extension frame to provide a rigid underlying support to the extension platform while also enabling the platform to be supported at the same elevational as the main platform. A railing for use alongside the extension assembly may also be formed of rigid sections that are foldable so that the railing can extend and retract with the extension platform. The main platform may be formed in sections spanning between upright columns in which cradles formed on the top of each column receive the platform section securely and in proper alignment therein until fasteners can more securely attach the platform sections to the columns.

An elevated worker support platform includes a main platform and an extension assembly having a longitudinal sliding extension frame and an upwardly folding extension platform supported on the extension frame to provide a rigid underlying support to the extension platform while also enabling the platform to be supported at the same elevational as the main platform. A railing for use alongside the extension assembly may also be formed of rigid sections that are foldable so that the railing can extend and retract with the extension platform. The main platform may be formed in sections spanning between upright columns in which cradles formed on the top of each column receive the platform section securely and in proper alignment therein until fasteners can more securely attach the platform sections to the columns.

A sidewalk shed for placement proximal to a building includes: a plurality of canopy support arrangements including base members securable to grade; a beam support structure securably disposed to upper portions of the plurality of the canopy support arrangements; and a canopy structure securably disposed to the beam support structure. The plurality of canopy support arrangements includes dual canopy support arrangements and single support arrangements. The canopy structure includes a parapet wall and a decking.

A sidewalk shed for placement proximal to a building includes: a plurality of canopy support arrangements including base members securable to grade; a beam support structure securably disposed to upper portions of the plurality of the canopy support arrangements; and a canopy structure securably disposed to the beam support structure. The plurality of canopy support arrangements includes dual canopy support arrangements and single support arrangements. The canopy structure includes a parapet wall and a decking.

According to one aspect of the present disclosure, a sidewalk shed section can include a first and second pair of leg sections, wherein at least a portion of each leg section is plus-shaped, and each leg section can include a rod header located at a top end of the plus-shaped portion; at least one hole located at a bottom end of the plus-shaped portion; and a bracket configuration.

According to one aspect of the present disclosure, a sidewalk shed section can include a first and second pair of leg sections, wherein at least a portion of each leg section is plus-shaped, and each leg section can include a rod header located at a top end of the plus-shaped portion; at least one hole located at a bottom end of the plus-shaped portion; and a bracket configuration.

A scaffold crossbar, particularly for the horizontally oriented installation in a scaffold section, comprising at least one crossbar beam which has a rod-shaped design and extends in the direction of a longitudinal axis, wherein the crossbar beam has two opposite ends in the direction of the longitudinal axis, and a connection interface which is provided for the connection to a scaffold element is arranged on each of these two ends. The scaffold crossbar further comprises at least two brackets which extend along a bracket axis, respectively, wherein the brackets respectively have two opposite ends in the direction of their bracket axis, wherein one of these ends of each bracket is connected to the crossbar beam, and at least two fasteners respectively one of which is arranged on the end of a bracket which is situated opposite of the connection of this bracket to the crossbar beam.