A construction method for the upright lifting of a large-tonnage box girder to a bridge, and an erection method for the large-tonnage box girder. The construction method comprises: constructing a lifting station (2) at reserved bridge piers (1); disposing a girder lifting base (3), lifter traveling rails (4), and a mounting lifter (6) in the lifting station (2); directly erecting a box girder (7) by the lifter (6) in a way that the lifter (6) travels to a position above the base (3) and erects the box girder (7). The erection method further comprises: lifting by the lifter (6) a single set of transport and erection apparatuses or two sets of transport and erection apparatuses to a bridge, a girder transport vehicle (9) cooperating with a bridge erecting machine (10) to repeatedly complete the erection of the box girder (7); hoisting by the lifter (6) the transport and erection apparatus off the bridge; lifting by the lifter (6) the box girder (7) within the scope of the reserved bridge pier (1) to the erected box girder (7); and constructing the reserved bridge piers (1); completing by the lifter (6) the erection of the box girder (7) within the scope of the reserved bridge piers (1). The construction and erection methods for the box girder occupy a small space and have high efficiency.

A construction method for the upright lifting of a large-tonnage box girder to a bridge, and an erection method for the large-tonnage box girder. The construction method comprises: constructing a lifting station (2) at reserved bridge piers (1); disposing a girder lifting base (3), lifter traveling rails (4), and a mounting lifter (6) in the lifting station (2); directly erecting a box girder (7) by the lifter (6) in a way that the lifter (6) travels to a position above the base (3) and erects the box girder (7). The erection method further comprises: lifting by the lifter (6) a single set of transport and erection apparatuses or two sets of transport and erection apparatuses to a bridge, a girder transport vehicle (9) cooperating with a bridge erecting machine (10) to repeatedly complete the erection of the box girder (7); hoisting by the lifter (6) the transport and erection apparatus off the bridge; lifting by the lifter (6) the box girder (7) within the scope of the reserved bridge pier (1) to the erected box girder (7); and constructing the reserved bridge piers (1); completing by the lifter (6) the erection of the box girder (7) within the scope of the reserved bridge piers (1). The construction and erection methods for the box girder occupy a small space and have high efficiency.

A steel girder pavement structure (100) for high-speed road for bicycle, and a roadbed pavement method therefor. The pavement structure (100) includes a top plate (10), a bottom plate (20), a web (30), stiffening plates (40), and decorative plates (50). A composite roadbed is paved on a surface layer of the top plate (10). The composite roadbed includes, from bottom to top, a substrate, a primer coating and quartz sand (101), a waterproof coating (102), an anti-slip coating and quartz sand (103), a wear-resistant coating (104) and an anti-ultraviolet coating (105). The roadbed pavement method includes: paving various layers of materials on a surface of the steel plate from bottom to top. The high-speed road for bicycle is easy to seamlessly connect to a transportation hub, and has a high comfort degree.

Improved tub girders and related manufacturing methods are provided, such as for example for use in road construction in connection with concrete bridges. Disclosed improved tub girders may include upper flanges that extending inwardly or outwardly. Disclosed improved tub girders may be provided with camber along the length of the girders. Ends of the disclosed improved tub girders may be provided with diaphragms. Disclosed improved tub girders may include a base section including one more access ports for enabling inspection of the interior of the girders after installation. Disclosed improved tub girders may include a plurality of stud members extending upwardly from upper flanges for engaging with a concrete bridge deck. Disclosed tub girders may be providing with a coating, such as galvanized, aluminized or metalized, to fight corrosion and extend life and limit need for inspection.

Improved tub girders and related manufacturing methods are provided, such as for example for use in road construction in connection with concrete bridges. Disclosed improved tub girders may include upper flanges that extending inwardly or outwardly. Disclosed improved tub girders may be provided with camber along the length of the girders. Ends of the disclosed improved tub girders may be provided with diaphragms. Disclosed improved tub girders may include a base section including one more access ports for enabling inspection of the interior of the girders after installation. Disclosed improved tub girders may include a plurality of stud members extending upwardly from upper flanges for engaging with a concrete bridge deck. Disclosed tub girders may be providing with a coating, such as galvanized, aluminized or metalized, to fight corrosion and extend life and limit need for inspection.

Disclosed are a steel girder pavement structure (100) for high-speed road for bicycle, and a roadbed pavement method therefor. The pavement structure (100) includes a top plate (10), a bottom plate (20), a web (30), stiffening plates (40), and decorative plates (50). A composite roadbed is paved on a surface layer of the top plate (10). The composite roadbed includes, from bottom to top, a substrate, a primer coating and quartz sand (101), a waterproof coating (102), an anti-slip coating and quartz sand (103), a wear-resistant coating (104) and an anti-ultraviolet coating (105). The roadbed pavement method includes: paving various layers of materials on a surface of the steel plate from bottom to top. The high-speed road for bicycle is easy to seamlessly connect to a transportation hub, and has a high comfort degree.

During bridge construction, a form at the upper, outer edge of a bridge's outer girder, upper flange retains concrete slurry poured on the bridge's deck. The girder is cast with extended upper flanges, and the form is precast integrally with the flange. The improved girder may eliminate the need for a construction worker walkway.

During bridge construction, a form at the upper, outer edge of a bridge's outer girder, upper flange retains concrete slurry poured on the bridge's deck. The girder is cast with extended upper flanges, and the form is precast integrally with the flange. The improved girder may eliminate the need for a construction worker walkway.

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 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.