Segment Lifter (Derrick Crane)

Segment Lifter (Derrick Crane)

Segment lifter can be best utilized for Balanced cantilever construction where pre-casting is possible and the segment can be transported below the span. This Equipment allows erection of industrialized segments and faster erection and is therefore addressed to bridges with a great number of spans. Since, these are very specialized equipment, the fabrication is done at the centralized fabrication unit and it is then shipped to various sites. The main features of pre-cast segment lifters deployed in the construction industry by us are as follows:

  1. Segment lifters are designed to install segment length of approximately 2.5m to 4m that weigh between 60 and 250 Tons, in varied design configurations like ramps, in tight locations, or in areas that are generally difficult to access across river beds.
  2. Segment lifters are constructed from built up structural steel, however a segment lifter is not required to span from one pier to the next and consequently it does not contain as much steel as the launching girder.
  3. It is equipped with two motorized mechanical hoists for lifting the pre-cast segments and for adjusting the cross-fall.
  4. Two segment lifters work in tandem with its mirror equivalent, with one lifter erecting in one direction from the Pylon / Pier Head and the second lifter erecting in parallel in the opposite direction.

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