According to an example aspect of the present invention, there is provided a scaffolding arrangement to be attached to a deck structure, comprising a set of aims (2) including a carrier beam (5) for carrying the working levels and support structures needed in work, an attachment frame (1) for attaching the set of arms to the upper surface of the deck structure and platforms (103, 104, 105) for forming working levels.

The present disclosure relates to a falling and death leap defense rotating cylinder system, including a supporter; a rotator that is rotatably installed in the supporter, and that inhibits a death leap of a death leap attempter by rotating when grasped by the death leap attempter; and a spiked unit that forms a cutting edge, and that is detachably installed in any one or more of the supporter and the rotator. According to the present disclosure, by the spiked unit detachably installed in the supporter or the rotator, a falling and death leap of a death leap attempter may be inhibited more effectively.

A modular cover panel including two or more cover panels that cover a parapet or barrier along a roadway. Multiple cover segments may overlap one another to form the modular cover panel and each cover panel is individually hung or suspended by brackets affixed to the parapet. Each cover segment has one more surfaces intersecting with other to cover the parapet and a top surface that overhangs a top surface of the parapet. A cable may be disposed through a slot of a hanging bracket and a pin may secure the cable thereby providing a mechanical attachment to the assembly.

A bridge detecting vehicle with two foldable arms, including: a vehicle body, slewing mechanisms, horizontal and vertical arms and telescopic arms. One end of the two horizontal arms is respectively arranged on the slewing mechanisms, and the other end of the two horizontal arms is respectively connected to the two horizontal arms. A crossed arm is provided between the two horizontal arms. The two vertical arms are respectively connected to the two horizontal arms via ball joints. A detecting device is respectively provided at rear ends of the two telescopic arms.

Stay-in-place forms and methods and equipment for installing thereof. A concrete form includes a vertical component and a horizontal component, the vertical component located substantially perpendicular to the horizontal component. Also, the form includes an interior surface, at least a portion of the interior surface providing a form for supporting uncured concrete; wherein the uncured concrete forms a concrete structural portion upon curing of the uncured concrete; and wherein the interior surface remains attached to the concrete structural portion after curing. The form may include inserts and compatible form attachments. Also, forms including recesses may be utilized to reduce the weight thereof. Lifting equipment and accessories may be utilized to lift the form from a form holder and set same in place. Forms contain the work area as soon as it is installed to minimize fall hazards and the time, costs, and downtime associated with installation of safety measures.

Described herein is a support element that may be a cantilever arm and a support structure being formed from multiple support elements for example to form a platform. Methods of assembly and use are also described. In one aspect, a support element is described with an elongated shape, a distal end and a coupling end and a cantilever form, where the coupling end of the support element is configured to couple with a structural member, the support element further configured to rotate once coupled from an inclined or declined position to a substantially horizontal plane, the support element once rotated to a substantially horizontal plane, extending generally orthogonally away from the structural member to a termination point about the distal end of the support element.

A platform and method for erecting a platform of support beams to which decking is applied so that it is suspended from at least one main cable of a bridge. Spaced slings are applied to the main cable so that each extends around the main cable. Ends of each of the slings are attached to a respective one of the support beams respectively. One end of a guy in the form of a cable is attached to at least one of the slings intermediate ends thereof. The guy is extended between the sling and an anchor point to restrain the sling from slippage along the length of the main cable.

An apparatus comprising a gangway having a proximal end and a distal end. A cage assembly is connected to the distal end of the gangway. The apparatus further comprises a container spotting system including a camera mounted such that its field of view will show a hatch cover of a container when the hatch cover is in a predetermined location. Video electronics are in electrical communication with the camera. The container spotting system further includes a display device in electrical communication with the video electronics, the display device being operative to show at least a selected portion of the field of view of the camera. The camera may comprise an outdoor dome camera mounted to an underside of the gangway.

A method of stabilizing a suspended scaffolding system against a main stable structure by using the intentional displacement of the centre of gravity of the suspended scaffold off its equilibrium position and preventing the return of the centre of gravity to the equilibrium free-hanging state. The displacement of the centre of gravity is to be achieved by movement of the counterweight of the suspended scaffolding. The centre of gravity is prevented from returning to the equilibrium position by using adjustable bumpers between the suspended scaffolding system and the main stable structure. A restoring gravity force induced by the displacement of the centre of gravity off the equilibrium position acts as a pushing force to provide firm stabilization of the suspended scaffolding against the main stable structure.

A kit for erecting a platform. The kit comprises a plurality of quad-chord trusses. Each truss is attachable to others of the truss by eyelets on the ends of the chords. When the chords are spaced horizontally, the eyelet apertures are vertical for receiving pins, which allows a single pin to be inserted in eyelet apertures on one side of the truss so that one truss is swingable horizontally into position for rigid attachment end-to-end by inserting another pin in eyelet apertures on the other side of the truss. Each truss comprises a plurality of connector members for attachment to the trusses along their lengths. The kit further comprises a plurality of cross beams having connector members at their ends to mate with and attach to the truss connector members, and a plurality of tie-up mechanisms attachable to the trusses and to which a supporting line from an overhead structure is attachable. The cross beams have overhangs at their ends for overhanging the upper ones of the chords to allow ease of movement along the chords and attachment. A track lies between the chords of each truss to allow movement of bolts along the track into position for insertion into decking apertures for attachment of the decking. The trusses may be foldable for transport and storage.