Bridge systems and methods for constructing bridges having overhang surfaces employing generally rectangular, precast, prestressed concrete panels. One method includes delivering a plurality of generally rectangular, precast, prestressed concrete panels to an installation site, and delivering one or more support beams to the installation site, each support beam having a support and a base. The concrete panels are positioned on the supports of the one or more support beams with an overhang panel section and a traffic panel section. The concrete panels are then connected to the support beams by positioning steel reinforcement in block outs or voids, pouring unsolidified concrete into the voids, and curing the unsolidified concrete to form an overhang traffic surface. Bridges constructed employing the precast, prestressed concrete panels and methods. Other bridge systems employ prestressed concrete L-walls and double-T members, where weight-bearing L-walls have pockets for webs of the double-T members.

A starter pier for a pier bracket assembly that is used support a structure (e.g., a foundation of a building, or the like). The starter pier has a first end, a second end, and an intermediate portion. The first end may be a flared first end that is swaged using a die. A reinforcing member may be inserted into the flared first end to provide support for the flared first end of the starter pier. The reinforcing member may be operatively coupled to the flared first end of the starter pier by compressing the flared first end around the reinforcing member using a mold. Additionally, or alternatively, the reinforcing member may be press-fit into the starter pier, connectors may be used, or the like to operatively couple the flared first end to the reinforcing member.

A starter pier for a pier bracket assembly that is used support a structure (e.g., a foundation of a building, or the like). The starter pier has a first end, a second end, and an intermediate portion. The first end may be a flared first end that is swaged using a die. A reinforcing member may be inserted into the flared first end to provide support for the flared first end of the starter pier. The reinforcing member may be operatively coupled to the flared first end of the starter pier by compressing the flared first end around the reinforcing member using a mold. Additionally, or alternatively, the reinforcing member may be press-fit into the starter pier, connectors may be used, or the like to operatively couple the flared first end to the reinforcing member.

A formwork system, including a plurality of side formwork elements configured to confront a concrete structure, a horizontal formwork panel configured to support the concrete structure, and at least one working platform, wherein the system is configured to be split in a longitudinal direction and stricken or cycled from the concrete structure in two discrete parts.

A formwork system, including a plurality of side formwork elements configured to confront a concrete structure, a horizontal formwork panel configured to support the concrete structure, and at least one working platform, wherein the system is configured to be split in a longitudinal direction and stricken or cycled from the concrete structure in two discrete parts.

A segment-assembled type pier column member with a steel-concrete composite structure includes a reinforcement tube embedded in a pile cap, wherein the reinforcement tube is connected with a bottom of a lower segment of a hollow steel tube pier and is poured with concrete, and pier columns in upper and lower segments are reinforced by means of segment connecting and being embedded with local reinforcing meshes. A steel cross beam is connected with an upper segment of the hollow steel tube pier in an assembled way. A pre-stressed tensioning duct is reserved between the steel cross beam and the pier column in the upper segment.

A segment-assembled type pier column member with a steel-concrete composite structure includes a reinforcement tube embedded in a pile cap, wherein the reinforcement tube is connected with a bottom of a lower segment of a hollow steel tube pier and is poured with concrete, and pier columns in upper and lower segments are reinforced by means of segment connecting and being embedded with local reinforcing meshes. A steel cross beam is connected with an upper segment of the hollow steel tube pier in an assembled way. A pre-stressed tensioning duct is reserved between the steel cross beam and the pier column in the upper segment.

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.

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.

The present disclosure provides an assembly type bridge lower structure having a socket type elastic duct coupler and a method of constructing the same in which, in construction of an assembly type bridge lower structure that consists of an assembly type foundation part, an assembly type pillar part, and an assembly type coping part, a socket type elastic duct coupler is utilized, thus enabling shear key joining at connection portions of the assembly type foundation part, the assembly type pillar part, and the assembly type coping part, easily accommodating of construction error displacements of the socket type elastic duct coupler, improving watertightness at connection portions of the precast segments, easily accommodating an insertion angle of the insertion member including a steel strand, a steel bar, a reinforcing bar, a FRP, or the like, and preventing an overflow phenomenon that occurs when epoxy is excessively applied during bonding between the precast segments.