1) Describe about Launching girder, Launching operations methods

Question

Accepted Answer

Launching girder is a temporary structure used in construction to move and position heavy loads.

Launching girder is typically made of steel and consists of multiple sections that can be assembled and disassembled.
It is used in the construction of bridges, viaducts, and other structures to lift and move precast concrete segments into position.
The launching operation involves the step-by-step movement of the girder along the bridge span, allowing the construction of the structure in segments.
Different methods of launching operations include longitudinal launching, transverse launching, and incremental launching.
Longitudinal launching involves moving the girder parallel to the bridge axis, while transverse launching involves moving it perpendicular to the bridge axis.
Incremental launching is a method where the girder is launched in small increments, with each segment being connected to the previously launched segment.
Launching girder operations require careful planning, coordination, and engineering expertise to ensure the safety and stability of the structure.
Examples of launching girder systems include the balanced cantilever method, the overhead launching method, and the underslung launching method.

Accepted Answer

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