What are the parts of the gantry gantry?
Crane operating agencies generally use only four active and driven wheels, if the weight is very large, commonly used to increase the wheel approach to reduce the wheel pressure.
When the wheel more than four, you must use the articulated balance frame device, so that the crane load evenly distributed in the wheels.
The metal structure of the bridge consists of the main beam and the end beam, divided into two types: single main beam bridge and double beam bridge.
The single girder bridge consists of a single main beam and an end beam located on both sides of the span. The double beam bridge consists of two main girders and an end beam.