Conveying and Erecting Integrated Bridge Girder Erection Equipment

Conveying and Erecting Integrated Bridge Girder Erection Equipment

Conveying and erecting integrated bridge girder erection machine consists of conveying and erecting girders and a lower guide girder machine.

Environment temperature:＞-15 ℃
Maximum wind power grade during operation: eight grades (72 kilometers/hour of wind speed)
Satisfy the lighting installation that sets up operation nigh
Can normally move and set up work on bridge and circuit 3% ramp
Able to handle and set up the large-tonnage concrete box girder

Product Description

Conveying and erecting integrated bridge girder erection machine consists of conveying and erecting girders and a lower guide girder machine.

Conveying and erecting girders machine consists of main girder, supporting frames arranged on both ends of the main girder, a front and a back walking wheel groups and a power machine group arranged on a wheel group vehicle frame. Supporting frames arranged on both ends of the main girder are respectively hinged with longitudinal wheel group vehicle frames of the front and the back walking wheel groups. The outer ends of a front and a back wheel group vehicle frames are matched with a cab and a directional operation limiting device.

Winches are installed on both ends of the main girder, and it also has a transverse bearer, a hanging beam mechanism, and a connecting device that is connected to a joist carrier of the lower guide girder machine. The lower guide girder machine is made up of a guide girder with a top and bottom track, a joist carrier, a back landing leg, a support cylinder, a power machine group, a landing leg hanger, a landing leg drawing mechanism, main and auxiliary landing legs and their hanging system, a hanging and carrying seat, and a folding hanger.

Conveying and erecting integrated bridge girder erection machine has the ability to autonomously hang girders, convey girders, and erect girders for a large-tonnage concrete box girder. The utility model may fulfill the requirement of carrying out bridge erection construction at a tunnel entrance without the necessity for a disassembling structure.

Technical Parameter

Rated capacity	900 tons
Applicable span	32m,24m,20m
Machine weight	About 560t
Size	92×7.1x9m(LxWxH)
Net inside width	3.3m
Min curve radius	2000m
Machine working degree	A3
Working degree of each mechanism	M4
Girder lifting speed	0.5m/min
Max lifting height	4.45m
Machine travel speed(unload)	10km/h
Machine travel speed(heavy load)	4km/h
Max pressure of the tyre	22t
Allowable Max longitudinal gradient	3%
General power	900kW

Advantages

Increased Efficiency: Accelerates the process of bridge construction by combining conveying and erection into one operation;
Accurate Positioning: Advanced control systems allow for precise placement of girders, ensuring proper alignment and fit;
Lower Equipment Costs: Integrating multiple functions into one machine can be more cost-effective than using separate pieces of equipment;
Adaptability: Can be used for various types of bridge construction, including beam bridges, box girder bridges, and truss bridges;
Mobility: Often designed to move along the bridge's length, facilitating continuous construction without the need to reposition the machine frequently.

Application

Highway and Expressway Bridges: Beam Bridges: Used to place precast concrete or steel beams in position for assembly. Box Girder Bridges: Ideal for the placement of box girders, which are commonly used in highway overpasses.
Railway Bridges: Truss Bridges: Assists in the erection of truss girders, which are often used in railway bridge construction due to their strength and durability. Arch Bridges: Can be used to position the girders that form the foundation of arch bridges.
Pedestrian and Foot Bridges: Suspension Bridges: Places the supporting girders that will carry the pedestrian pathway. Cantilever Bridges: Positions the cantilever arms and girders needed for this type of bridge.
Long-Span Bridges: Cable-Stayed Bridges: Assists in the placement of the long girders that form the main span, working in conjunction with cranes and other lifting equipment. Segmental Bridges: Precisely positions precast segments, which are then connected to form the bridge span.