“A method for producing a construction section of a deck slab for a bridge includes the following operations: producing a bottom layer composed of a segment and having cross beams, which are arranged in the transverse direction in regard to the longitudinal axis of the longitudinal bridge girder, from reinforced concrete; transporting the bottom layer having the cross beams for a construction section of the deck slab using a conveyor device from an assembly site to an installation site and lowering it into the installation position; producing a top concrete layer for a construction section of the deck slab on the bottom layer; removing the bottom layer having the cross beams for a construction section of the deck slab from the conveyor device and moving the conveyor device away from the installation site.”

A composite structural panel for use in bridge structures, and method of manufacturing same, comprises a top panel and a bottom panel separated by and attached to at least one, but preferably a plurality, of structural composite preforms which may be fabricated by a continuous manufacturing process and may be saturated by resin using a continuous wetting process. The composite preforms may take any cross-sectional shape but are preferably trapezoidal. The top and bottom panels may be fabricated from a plurality of layers of woven fabric layers and non-woven fabric layers which are saturated with a resin that is subsequently cured using cure processes known in the art. The composite structural panel of the invention is usable as a flat structural member for use as bridge decking, ramps, trestles, and any application requiring a structural panel.

A composite structural panel for use in bridge structures, and method of manufacturing same, comprises a top panel and a bottom panel separated by and attached to at least one, but preferably a plurality, of structural composite preforms which may be fabricated by a continuous manufacturing process and may be saturated by resin using a continuous wetting process. The composite preforms may take any cross-sectional shape but are preferably trapezoidal. The top and bottom panels may be fabricated from a plurality of layers of woven fabric layers and non-woven fabric layers which are saturated with a resin that is subsequently cured using cure processes known in the art. The composite structural panel of the invention is usable as a flat structural member for use as bridge decking, ramps, trestles, and any application requiring a structural panel.

A cost-effective orthotropic deck bridge panel which is capable of being standardized to facilitate the use of orthotropic decks on short span bridges. Inclusion of a concrete deck in the panel simplifies fabrication details, thereby increasing the economic viability of the disclosed orthotropic deck panel in short span bridge projects. Shortcomings in fabrication of steel support ribs of the panel are overcome by using a cold roll-forming process instead of a press brake to form longitudinal bends in sheet material. The cold roll-forming process further allows camber to be introduced in the support ribs, thereby eliminating an extra manufacturing step.

A method of manufacturing an orthotropic deck panel includes securing a rib member in a first fixture, beveling an edge surface of the rib member while the rib member is secured in the first fixture, and releasing the rib member from the first fixture, attaching the rib member to a deck plate, and attaching a floor beam to the rib member and the deck plate.

A track beam includes a main component and a guide component. The main component includes a top plate, a bottom plate, and a web plate. The bottom plate is disposed below the top plate, and the web plate is connected between the top plate and the bottom plate. The guide component includes a guide plate and a connecting structure. The guide plate is disposed between the top plate and the bottom plate. The guide plate includes a planar plate structure extending in a longitudinal direction and is spaced apart from the web plate in a transverse direction. The connecting structure is connected between the main component and the guide plate such that the guide plate is connected to the main component through the connecting structure.

Methods, system and apparatus are disclosed, including a tie fastener apparatus for attaching railroad ties to a superstructure. The apparatus comprises a threaded hook bolt, including a hook to engage the underside of a flange of a beam. The apparatus further comprises a cross strap configured to engage with a flange of the beam. The apparatus further comprises a metal member for engaging plural ties. The metal member includes a tie fastener hole at plural locations. A nut fastens a threaded end of the threaded hook bolt for installation when the threaded hook bolt is passed through the bolt hole. When the threaded hook bolt is installed, the hook engages the superstructure, and a neck of the threaded hook bolt engages the cross strap. The apparatus is installed from above the superstructure without drilling holes in ties or the superstructure, or requiring manned installation from below the superstructure.

Methods, system and apparatus are disclosed, including a tie fastener apparatus for attaching railroad ties to a superstructure. The apparatus comprises a threaded hook bolt, including a hook to engage the underside of a flange of a beam. The apparatus further comprises a cross strap configured to engage with a flange of the beam. The apparatus further comprises a metal member for engaging plural ties. The metal member includes a tie fastener hole at plural locations. A nut fastens a threaded end of the threaded hook bolt for installation when the threaded hook bolt is passed through the bolt hole. When the threaded hook bolt is installed, the hook engages the superstructure, and a neck of the threaded hook bolt engages the cross strap. The apparatus is installed from above the superstructure without drilling holes in ties or the superstructure, or requiring manned installation from below the superstructure.

According to a first aspect of the present invention, there is provided a mobile bridge module comprising a reinforcement applied in a non-destructive manner. This might alternatively and/or additionally be defined as a non-destructively reinforced mobile bridge module.

Provided is a viaduct structure. The viaduct structure consists of steel bridge columns, steel plate girders, a bridge deck bottom steel plate, bridge deck side steel plates and cement-gravel concrete, where the steel bridge columns, the steel plate girders and the bridge deck bottom steel plate are welded to one another to form the ceiling type steel architecture, the bridge deck side steel plates are welded to the bridge deck bottom steel plate, and the cement-gravel concrete is poured in a groove-like structure formed by the bridge deck side steel plates and the bridge deck bottom steel plate. The viaduct structure has the advantages of a firm structure, a thin bridge deck, the thin steel plate girders, a low height of the bridge deck, no plywoods required for pouring, convenient construction, low waste, a low material consumption, a low construction cost, a short construction period, etc.