A structural panel and method of fabricating and 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 structural panel and method of fabricating and 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 bridge or other construction comprising a deck, in which the deck is designed to be lightweight and durable, such as by including aluminum, and readily installable on a main bearing structure of the bridge or other construction (e.g., without welding and/or without drilling or otherwise creating holes into the main bearing structure of the bridge or other construction), even if the main bearing structure of the bridge or other construction is based on different material (e.g., steel).

A new modular orthotropic steel bridge deck, and its manufacturing method, which introduces the design standardization of the orthotropic steel bridge deck designs, thereby, leading to cost-effective solutions by avoiding the complexities and costly details that are unnecessary for orthotropic steel bridge deck and short span bridge applications.

A bridge system is provided that utilizes foundation structures that are formed of the combination of precast and cast-in-place concrete. A method of constructing the combination precast and cast-in-place concrete foundation structures involves receiving at a construction site a precast concrete foundation unit having elongated upright wall members that define a channel therebetween, and multiple upright supports located within the channel; placing the precast concrete foundation unit at a desired use location; delivering concrete into the channel while the precast concrete foundation unit remains at the desired use location; and allowing the concrete to cure-in-place such that the elongated upright wall members are connected to the cured-in-place concrete by reinforcement embedded within both the cured-in-place concrete and the upright wall members. The bridge units may be placed before the pouring step to embed the bottoms of the bridge units in the cast-in-place concrete.

A bridge paving device includes one or more reference receivers to locate the bridge paving device in three-dimensional space. A computer apparatus receives the location of the bridge paving device and associates the location with a bridge paving design profile. The computer apparatus independently actuates a system of hydraulic actuators of the bridge paving device to level and orient the bridge paving device regardless of the travel surface the linear movement elements are running on. Additional hydraulic actuators may adjust the shape of the bridge paving device over time as the bridge paving device travels a linear distance of the bridge to be paved. The shape adjustment alters a crown or inversion applied to the bridge such that run-off characteristics are more variable and controllable along the entire span of the bridge.

A slab bridge structure having improved rigid connection strength between bridge girders and concrete piers. The slab bridge structure has a rigid connection structure in which slab concrete (3) is poured between side surfaces of bridge girders (1) arranged in line in a bridge width direction, throughout a longitudinal direction of the bridge girders, connection concrete (12) in which bridge girder portions (1′) supported by a bridge seat (2a) of a concrete pier (2) that supports the bridge girders are embedded is further added onto the bridge seat, and the slab concrete and the concrete pier are concrete-joined through the connection concrete, the slab bridge structure further includes: a connecting rod (13) embedded in the concrete pier and projecting upward from the bridge seat of the pier; and a connecting plate (14) connecting upper end portions of the adjacent bridge girder portions.

A viaduct specially configured to secure and protect an international border.

A viaduct specially configured to secure and protect an international border.

A fastening system configured to attach railroad crossties to one or more support structures such as the girder of a bridge. The fastening system includes a plate mounted on a crosstie and a clip attached to the plate that is configured to provide a force between the support structure and the crosstie and secure the crosstie in place.