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A Segment Lifter is a specialized piece of equipment used in the construction of precast segmental balanced cantilever bridges. It is designed to lift and place precast concrete segments or steel box girders in bridge construction projects. The Segment Lifter is an essential tool for assembling bridges, particularly in projects involving precast segmental bridge construction.
Main Features
Structure : The Segment Lifter is typically composed of structural steel and includes a main beam, front, middle, and rear legs, auxiliary brackets, lifting trolleys, hydraulic systems, and electrical systems. It is designed to be self-launching through a hydraulic system, which provides a safe and efficient launching process.
Lifting Capacity : Segment Lifters can handle segments weighing between 200 and 1200 tons, depending on the specific model and configuration. They are designed to install segments in ramps, in tight locations, or in areas that are generally difficult to access.
Mobility and Launching Options : Segment Lifters can be equipped with steel wheels or rubber tires for enhanced maneuverability. They can be self-launched using a hydraulic system or made mobile with steel wheels that run on rails. This allows them to operate in different construction environments and adapt to various site conditions.
Lifting Mechanism : The Segment Lifter is equipped with two electric hoists for lifting the pre-cast segments and adjusting the cross-fall. It may also utilize hydraulic systems for controlled and precise lifting.
Advantages
High Efficiency : The Segment Lifter can expedite the placement of prefabricated segments, minimizing on-site assembly time and thus speeding up construction schedules. It allows for faster erection and is therefore well-suited to bridges with a great number of spans.
Safety and Reliability : Segment Lifters are designed with a professional safety protection system, including features such as load sensors, emergency stop mechanisms, and fail-safe systems. These features ensure maximum construction safety and protect the well-being of workers.
Versatility : Segment Lifters can be used in a wide range of applications, including bridge construction, elevated roadways, viaducts, overpasses, and tunnel construction. They are suitable for different space height restrictions and can be designed to accommodate various segment sizes and shapes.
Strong Wind Resistance : The main structure of the Segment Lifter is a diamond truss structure, which has high wind resistance and ensures safe operation.
Applications
Bridge Construction : Segment Lifters are extensively used in the construction of bridges, particularly in projects involving precast segmental bridge construction. They play a crucial role in placing segments with accuracy, contributing to the overall stability and efficiency of the construction process.
Elevated Roadways and Viaducts : In the construction of elevated roadways, viaducts, and overpasses, Segment Lifters are employed to position precast segments seamlessly. This ensures a swift and systematic assembly of the structure.
Tunnel Construction : Segment Lifters can also be utilized in tunnel construction where precast concrete segments are commonly used to form tunnel linings.
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