This invention is an improved side section for a marine gangplank/gangway structure. This side section has a unique visually appealing design and provides gangplanks with resistance to twisting and increased live load capacity. The side sections of this invention can be used to reduce the weight and cost of gangplanks while improving durability. This marine structure comprises (1) a horizontal base section, (2) a vertical base, (3) a horizontal spacer, (4) a sigma spring section which extends upwardly from the inside end of the horizontal spacer in a circumferential manner, (5) a lower deck support, wherein the lower deck support extends horizontally from the top end of the sigma spring section, and wherein the lower deck support includes a fulcrum which is situated on the top of the lower deck support, (6) a vertical deck support, and (7) an upper deck.

A composite I-truss is provided, that comprises a pair of top and bottom flanges and an extending intermediate web having a first end secured to the first flange and a second end secured to the second flange. Each flange comprises one or more longitudinal beams secured to the flange connectors. The web comprises at least a pair of flange connectors extending away from the flange and toward the web. The web comprises a plurality of linking struts located at a plurality of longitudinal positions along a length of the I-truss and connecting the flange connectors of the first flange to the flange connectors of the second flange.

A modular railing system for on-site assembly of a railing system along a roadway is provided. The modular railing system can include a deck with an edge beam along one side and a railing that can be attached to the edge beam. Attachment of the railing to the edge beam raises the joint between the deck and the railing to inhibit water seepage into the joint. In a specific embodiment, UHPC can be used to attach the railing to the edge beam.

A modular railing system for on-site assembly of a railing system along a roadway is provided. The modular railing system can include a deck with an edge beam along one side and a railing that can be attached to the edge beam. Attachment of the railing to the edge beam raises the joint between the deck and the railing to inhibit water seepage into the joint. In a specific embodiment, UHPC can be used to attach the railing to the edge beam.

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.l, . . . , 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 bracket attachable to a top side of a parapet on a bridge to support a platform positioned on a horizontal element of the bracket. Vertical adjustment of the bracket allows the horizontal element to be positioned a small distance beneath the bridge deck so that the platform positioned thereon can catch falling materials, such as from demolition during bridge repair. After demolition, vertical adjustment of the bracket brings the horizontal element supporting the platform to a level directly under the bridge deck for use as a formwork for construction of a new roadway.

A bracket attachable to a top side of a parapet on a bridge to support a platform positioned on a horizontal element of the bracket. Vertical adjustment of the bracket allows the horizontal element to be positioned a small distance beneath the bridge deck so that the platform positioned thereon can catch falling materials, such as from demolition during bridge repair. After demolition, vertical adjustment of the bracket brings the horizontal element supporting the platform to a level directly under the bridge deck for use as a formwork for construction of a new roadway.

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.

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.

A variably dimensionable bridge (10) comprising pre-engineered components provided in a kit. The pre-engineered components are constructed of fiber reinforced polymer (FRP) composite material and include at least one floor module (14) for providing a floor; at least two girders (12) for providing opposing substantial vertical sides; and at least two cross beams (16) to lend support to the girders (12). A is a method for constructing a bridge (10) of variable dimensions comprising the use of pre-engineered components provided in a flat-pack kit.