A platform and method for configuring and erecting a platform of support beams to which decking is applied so that it is suspended from and disposed below a main cable of a bridge. In one embodiment, a plurality of main cable clamps are spaced along and grippingly attached to the main cable. A pair of elongate members are each attached at one end to a respective one of the main cable clamps and at an other end to the respective support beam. In another embodiment, 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 cable is attached to a sling intermediate ends thereof. The cable is extended between the sling and an anchor point and substantially parallel to the main cable there along to restrain the sling from slippage along the length of the main cable.

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 foldable quad-chord truss which can be connected end-to-end with like trusses. The chords of each pair of chords are rigidly attached, and connector members intermediate the ends are each swivelly attached to each of the chords of each chord pair to effect the folding into a compact shape for transport and storage. The connector members are adapted for attachment to beams or connector members thereof which beams may extend between a parallel pair of the trusses.

A work vehicle (1) including a suspended platform includes a work cage (10) to carry an operator, an arm mechanism (60) having a distal end, the distal end movable to an intended position by at least one of a rotating mechanism (30), an extension mechanism (40), or a derricking mechanism (50) installed on a vehicle body (20). The suspended platform (100) includes a support post (70) located at the distal end of the arm mechanism (60), a suspension frame (80), from which the work cage (10) is suspended, mounted on an upper end of the support post (70) to allow the operator to perform an operation above the upper end of the support post (70), and a lift mechanism (90) that raises or lowers the work cage (10) suspended from the suspension frame (80) with a plurality of lanyards (91) to a work position.

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.

An expansion joint connects structural elements of a building structure to fill a space between the structural elements themselves. The expansion joint has a plate body and a deformable body flanked or adjacent to the plate body along the longitudinal direction. The deformable body includes two superimposed and structurally independent portions connected to each other in a removable way, or configured for a removable connection with one another.

An adjustable suspension assembly for suspending a lower structure such as a platform from an upper structure such as a portion of a bridge. A sling, which is attachable at one end to the upper structure, is attached at its other end to one end of a chain. A device, which is attachable to the lower structure, has a pair of aligned apertures in its side walls for receiving pins. The pins are spaced to receive a thickness of a chain link but not to receive a width of the link, whereby a selected link to achieve a desired lower structure height may be cinched between the pins. The other end of the sling, which comprises a cable, has an eyelet formed by folding an end portion of the cable back over the cable and swaging the cable end portion to the cable. The chain is attached to said eyelet by receiving the end portion of the cable in one of the chain links before the cable end portion is swaged to the cable.

An image processing method and system, a storage medium and a moving system are provided, and the image processing method includes: obtaining a 2D depth array D.sub.p having depth information of a target object; calculating to obtain a depth vector D=[d.sub.1, d.sub.2, d.sub.3, . . . , d.sub.i, . . . , d.sub.n], in which an element d.sub.i is an average value of elements of the i.sup.th row in the 2D depth array; calculating to obtain an edge determination vector D=[d.sub.1, d.sub.2, d.sub.3, . . . , d.sub.i, . . . , d.sub.n1], in which an element d.sub.i=|d.sub.id.sub.i+1|; calculating an average value d.sub.0=(|d.sub.2d.sub.1|+|d.sub.3d.sub.2|+ . . . +|d.sub.n1d.sub.n2|)/(n2); and comparing an absolute value |d.sub.id.sub.i+1| with d.sub.0 to identify an edge of the target object, in which in a situation where |d.sub.id.sub.i+1| is greater than d.sub.0, it is determined that the elements of the i.sup.th row in the 2D depth array D.sub.p correspond to the edge of the target object.

A pier maintenance system and a structural maintenance system are provided. The pier maintenance system is configured to maintain elongate members of the pier (e.g. piles). The pier maintenance system includes a delivery module, configured to navigate between the elongate members; and a maintenance module, coupled to the delivery module, and configured to navigate along the elongate members, to maintain the pier.

A work platform system for implementation in relation to a structure, as well as subsystems and components thereof and methods of implementation and use relating thereto, are disclosed herein. In at least one embodiment, the work platform system includes a first pair of flexible elements and a second pair of flexible elements, where a respective first end of each of the flexible elements is coupled at least indirectly to a first support component and a respective second end of each of the flexible elements is coupled at least indirectly to a second support component. The work platform system can further include a plurality of panel structures supported upon the flexible elements, a suspension component, and a clamp structure coupled to at least one of the first pair of flexible elements and the second pair of flexible elements. The work platform system can include one or more support extension.