A cover comprises main section 12 provided with link means to allow linking of the cover to an adjacent cover, wherein the main section 12 is shaped to include opposing side walls 18 and defines a reinforced plastics material central region 22 in which elongate reinforcement members 26 are provided extending within the side walls 18, and end regions 24 located to opposite ends of and integrally formed with the central region 22, the elongate reinforcement members 26 provided in the side walls 18 stopping short of the end regions 24, and wherein the link means are provided at the end regions 24.

A portable modular bridge system that is configured to be easily assembled, disassembled and transported so as to facilitate the transportation of the bridge system to a remote location for installation. The bridge system of the present invention includes a deck member having a first end and a second end. The deck member is operably coupled to a two support members wherein the support members are located at opposing ends of the deck member. The support members a are formed from a plurality of structural members to create an elongated polygon shape having a central opening configured to have a human pass therethrough. A pair of side rails are structurally coupled to the bottom portion of the two support members. A top frame member is superposed the top portion of the two support members and is operably coupled thereto. A lateral stability component is further included.

A portable modular bridge system that is configured to be easily assembled, disassembled and transported so as to facilitate the transportation of the bridge system to a remote location for installation. The bridge system of the present invention includes a deck member having a first end and a second end. The deck member is operably coupled to a two support members wherein the support members are located at opposing ends of the deck member. The support members a are formed from a plurality of structural members to create an elongated polygon shape having a central opening configured to have a human pass therethrough. A pair of side rails are structurally coupled to the bottom portion of the two support members. A top frame member is superposed the top portion of the two support members and is operably coupled thereto. A lateral stability component is further included.

A reconfigurable portable load bearing structure which can be configured into an extended load bearing configuration or a collapsed configuration, comprising of a first, second and third plurality of rail segments that are each rotatably coupled together and a plurality of support segments or pads which are configured to selectively couple and latch into one of a plurality of positions on said first, second and third plurality of rail segments.

A reconfigurable portable load bearing structure which can be configured into an extended load bearing configuration or a collapsed configuration, comprising of a first, second and third plurality of rail segments that are each rotatably coupled together and a plurality of support segments or pads which are configured to selectively couple and latch into one of a plurality of positions on said first, second and third plurality of rail segments.

A modular truss joint is a web plate with at least three connectors. Each connection includes a web integrally formed as a portion of the web plate of a certain length. Each connection is positioned at a connector angle with respect to the other connectors. The connections have continuous flanges on a periphery of the modular truss joint. Each flange is oriented transversely to the web. The connectors form a modular structure by each connecting to at least one wide flange body to form a moment resisting connection such that the modular truss joint resists flexure of the modular structure.

A modular truss joint is a web plate with at least three connectors. Each connection includes a web integrally formed as a portion of the web plate of a certain length. Each connection is positioned at a connector angle with respect to the other connectors. The connections have continuous flanges on a periphery of the modular truss joint. Each flange is oriented transversely to the web. The connectors form a modular structure by each connecting to at least one wide flange body to form a moment resisting connection such that the modular truss joint resists flexure of the modular structure.

A cover is described which comprises main section (12) provided with link means to allow linking of the cover to an adjacent cover, wherein the main section (12) is shaped to include opposing side walls (18) and defines a reinforced plastics material central region (22) in which elongate reinforcement members (26) are provided extending within the side walls (18), and end regions (24) located to opposite ends of and integrally formed with the central region (22), the elongate reinforcement members (26) provided in the side walls (18) stopping short of the end regions (24), and wherein the link means are provided at the end regions (24).

An adjustable structural connectiona connection which can be adjusted to alter the location and angle of member attachmenttransforms the traditional notion of connections as a static means of connecting members at specific angles to a dynamic means of assembling a variety of structurally efficient forms. The adjustable connection connects a diagonal member to a vertical or horizontal member using either curved plate mounted to both of the structural members or a temporarily rotatable link. The adjustable connection can be used in a kit-of-parts type system, using multiple versions of the adjustable connection, which can join members at a wide variety of angles using a small number of unique components.

An adjustable structural connectiona connection which can be adjusted to alter the location and angle of member attachmenttransforms the traditional notion of connections as a static means of connecting members at specific angles to a dynamic means of assembling a variety of structurally efficient forms. The adjustable connection connects a diagonal member to a vertical or horizontal member using either curved plate mounted to both of the structural members or a temporarily rotatable link. The adjustable connection can be used in a kit-of-parts type system, using multiple versions of the adjustable connection, which can join members at a wide variety of angles using a small number of unique components.