Application of Chain Block in Arch Bridge Engineering

　　Arch bridge in the establishment of the process, the need to bridge up, often need to use the chain hoist. Many people may not have seen the actual operation, the following Hebei Yu car hoisting beams according to the schematic diagram of the construction process. Through the symmetrical arrangement of the two pairs of hand chain hoist, A pair of hoist to enhance the beam, B on the hoist by a cross with the A pair of hoist force. To achieve the horizontal beam forward work. Finally, the idea of lifting the beam to the design position. Project is the most important thing is the safety of the project, the operation of the project should pay attention to operational safety. Safe operation, safety is about you, me, him.