Transportable bridge structure

A bridge comprising at least one central bridge module and two end bridge modules,

• each of said bridge modules comprising two longitudinal main girder structures and a central deck having a deck surface capable of supporting vehicles, and the central deck extending substantially the entire length of the module, foldable connecting means foldably connecting said main girder structures to each side of said central deck in a manner such that said main girders are foldable from an operative position in which said main girder structures provide extensions of said deck surface on either side of said central deck for use, and a closed position in which said girder structures are folded beneath said deck,
• said main girder structures of said end bridge modules being longitudinally tapered in depth when seen from a side of said module in its operative position,
• said main girder structures of said central bridge module(s) not being so tapered, and
• wherein each of said end bridge modules and said central bridge module(s) is in said operative position, and wherein said end bridge modules and said central bridge modules are connected together to form a bridge.

A bridge module comprising:

• two longitudinal main girder structures and a central deck having a deck surface capable of supporting vehicles, and the central deck extending substantially the entire length of the module;
• foldable connecting means foldably connecting said main girder structures to each side of said central deck in a manner such that said main girders are foldable between an operative position in which said main girder structures offer extensions of said deck surface on either side of said central deck for use, and a closed position in which said main girder structures are folded beneath said deck;
• at least one first lifting attachment provided on each main girder structure offering said extension of said deck surface, at a position such that when lifting said module at said at least one first lifing attachment the module unfolds from a closed position to an operative position;
• and at least one second lifting attachment on each main girder structure provided on a surface facing the corresponding surface of the other main girder structure of the module when the module is in operative position and spaced sufficiently from the axis of pivoting of the main girder structure to the deck for having the module fold from its operative position to the closed position when lifted at said at least one second attachment.

A bridge comprised of a bridge module comprising:

• two longitudinal main girder structures and a central deck having a deck surface capable of supporting vehicles, and the central deck extending substantially the entire length of the module;
• foldable connecting means foldably connecting said main girder structures to each side of said central deck in a manner such that said main girders are foldable between an operative position in which said main girder structures offer extensions of said deck surface on either side of said central deck for use, and a closed position in which said main girder structures are folded beneath said deck;
• at least one first lifting attachment provided on each main girder structure offering said extension of said deck surface, at a position such that when lifting said module at said at least one first lifting attachment the module unfolds from a closed position to an operative position;
• and at least one second lifting attachment on each main girder structure provided on a surface facing the corresponding surface of the other main girder structure of the module when the module is in operative position and spaced sufficiently from the axis of pivoting of the main girder structure to the deck for having the module fold from its operative position to the closed position when lifted at said at least one second attachment;
• said main girder structures of said end bridge modules being longitudinally tapered in depth when seen from a side of said module in its operative position;
• said main girder structures of said central bridge module(s) not being so tapered;
• and
• wherein each of said end bridge modules and said central bridge module(s) is in said operative position, and wherein said end bridge modules and said central bridge modules are connected together to form a bridge.