A system for construction of double U and single U steel composite structure for bridges and methods thereof are disclosed. The system comprising: a base slab (1), a plurality of top and bottom U shaped beams (2, 8) made of I section, exterior top and bottom slabs (3, 9), a bottom deck slab (4), foot path (5) and kerb (6). In precast scheme U shaped bottom beams (2) are placed at about 2 m interval and exterior slab and bottom deck slab are casted. Top U beams are casted in inverted position. Base slab is provided and bottom U system is placed and top U system is provided over bottom U system forming a full frame vierendeel type composite as a self-straining unit. Earth filling compaction to be done. The approaches are made of single U section and being extended with I beam and RCC slab. Cast in situ scheme is done similar.

A jacking force transfer method to compress prefabricated deck units and to tension bridge girders. Prefabricated deck units are placed on top of bridge girders. Relative motion between girders and deck units is permitted along the direction of bridge girders while deck units are first installed. Subsequently, an end deck unit is made composite with the girders while jacking brackets are installed on top of the deck unit on the other end of the bridge. Hydraulic jacks react with jacking brackets to introduce a longitudinal compression in prefabricated deck units and, at the same time, a tension in the girders.

A construction module for a structure, comprising: a formwork member that includes a base, a pair of parallel side walls that extend upwardly from the base, and a pair of parallel end walls. The base, the side walls and the end walls define a cavity for reinforcement and concrete. A reinforcement member includes an upper portion and a lower portion. When the reinforcement member is located in the cavity and concrete fills the cavity, the lower portion of the reinforcement member and the concrete define an elongate beam.

A method for displacing a ceiling formwork for a nearest concreting section, wherein first and second supporting devices for supporting the ceiling formwork are arranged below the nearest concreting section. Said supporting devices each have a shuttering position and a stripping position, wherein the ceiling formwork is raised to a concreting level in the shuttering position and lowered relative to the concreting level in the stripping position. The first supporting device is moved into the stripping position and the second supporting device is moved into the shuttering position, and a collision protection element is arranged between the second supporting device and an end face of the ceiling formwork when the end face of the ceiling formwork strikes the second supporting device after passing over the first supporting device, so the collision protection element forms a flank rising in the displacement direction for guiding the ceiling formwork in the displacement direction.

A decking system provides a surface upon which traffic may travel. Drivable decking surfaces can support heavy vehicles, such as tanks. Exemplary decking systems include a first module, a second module, a first upper fastening assembly, a first lower fastening assembly, a second upper fastening assembly, and a second lower fastening assembly. These fastening assemblies can secure the first module and the second module together. Decking systems may also include side ramp assemblies and/or end ramp assemblies, and such ramp assemblies can be coupled with a decking platform. Fastening assemblies may include a pin, a first clip, and a second clip.

The invention relates to a bridge for a rail vehicle, including a track, which is formed from two parallel rails (S1, S2) and is provided for being driven on by the rail vehicle, and including a bridge beam (B1, B2), which supports the rails (S1, S2) of the track and is aligned transversely to a support profile (T1, T2) of the bridge. The bridge beam (B1, B2) is supported by a height adjustment element (R1, R2) arranged between the support profile (T1, T2) and the bridge beam (B1, B2), and wherein at least one fastening device is provided by means of which the position of the bridge beam (B1, B2) is fixed in relation to the height adjustment element (R1, B2). In order to be able to achieve an exact positioning of the bridge beams at their target height with reduced effort and at low costs, the invention proposes to design the height adjustment element (R1, R2) as a single-piece block, whose height (HR) is adapted to the distance between the support profile (T1, T2) and the bridge beam (B1, B2) by means of material-removing processing. Preferably, the bridge beam and the height adjustment element thereby consist of a plastic-based material, in particular a plastic-sand mixture.

The invention relates to a bridge for a rail vehicle, including a track, which is formed from two parallel rails (S1, S2) and is provided for being driven on by the rail vehicle, and including a bridge beam (B1, B2), which supports the rails (S1, S2) of the track and is aligned transversely to a support profile (T1, T2) of the bridge. The bridge beam (B1, B2) is supported by a height adjustment element (R1, R2) arranged between the support profile (T1, T2) and the bridge beam (B1, B2), and wherein at least one fastening device is provided by means of which the position of the bridge beam (B1, B2) is fixed in relation to the height adjustment element (R1, B2). In order to be able to achieve an exact positioning of the bridge beams at their target height with reduced effort and at low costs, the invention proposes to design the height adjustment element (R1, R2) as a single-piece block, whose height (HR) is adapted to the distance between the support profile (T1, T2) and the bridge beam (B1, B2) by means of material-removing processing. Preferably, the bridge beam and the height adjustment element thereby consist of a plastic-based material, in particular a plastic-sand mixture.

Disclosed are a composite deck structure for a bridge, and a bridge structure and a construction method thereof. The composite deck structure includes a top plate (1), longitudinal ribs (2), and transverse ribs (3), where the longitudinal ribs (2) are fixedly connected to the transverse ribs (3), and are connected to the diaphragms (4) by means of the transverse ribs (3), and the transverse ribs (3) are not provided with cutouts for accommodating the longitudinal ribs (2). According to the composite deck structure, no cutout is provided on the diaphragms (4), and stress generated by the cutouts is reduced; hot-rolled section steel is used for longitudinal ribs (2) and transverse ribs (3) instead of welded steel plates, such that welding seams are reduced and fatigue resistance of the composite deck structure is improved.

A bridge heating system includes one or more mounting boxes, each of the mounting boxes being configured to mount to an underneath side of a bridge; one or more heating devices secured inside of each of the one or more mounting boxes; one or more fans secured inside each of the one or more mounting boxes and to circulate air throughout the associated mounting box; control system to operate the one or more heating devices and the one or more fans such the one or more mounting boxes heats the underneath side of the bridge.

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.