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What are the key points of bridge erecting machine safety technology?

by:Powerston     2021-04-19
The bridge erecting machine is a special crane that is supported on the bridge structure and can automatically change the supporting position along the longitudinal direction. It is used to install the prefabricated bridge girder at the designated position of the pier. Today we will take a look at the key points of the safety technology of the bridge erecting machine? The bridge erecting machine is a special crane that is supported on the bridge structure and can automatically change the supporting position along the longitudinal direction. It is used to install the prefabricated bridge girder at the designated position of the pier. Today we will take a look at the key points of the safety technology of the bridge erecting machine? 1. The installation and dismantling of the bridge erecting machine is a project that exceeds a certain scale and is more dangerous, and a special construction plan needs to be drawn up and verified by experts. 2. The assembling process is: construction preparation → placement of front outriggers, middle outriggers and lateral movement track → front outriggers, middle outriggers, rear outriggers → assembling main beams, guide beams, and installation of contact frames → before installing guide beams Outriggers → install the lifting crane → install and debug hydraulic and electronic control systems. 3. Before the installation of the bridge erecting machine, the components, accessories, tools, etc. that enter the site should be inspected and accepted in detail. 4. The size of the site and the bearing capacity of the foundation should meet the requirements for the installation and trial load of the bridge erector; the site is smooth and the longitudinal slope cannot exceed 3%. 5. Before placing the track and moving the middle outrigger horizontally, the debris on the track foundation should be cleaned up in advance. After the track is laid, the top surface elevation must be measured and leveled and cushioned. 6. Place the front and middle outriggers on the horizontally moving track. After aligning the center distance, connect the front and middle outriggers to the trolley, and use a chain hoist and cable wind rope to fix the bracket to the ground. . 7. Assemble the main beam and guide beam on the ground from the front or rear in turn, and then hoist the main beam and guide beam on one side on the outriggers with two cars, and install the other side in the same way. 8. Measure the track center distance of the two guide beams according to the installation size. Install the connection frame to connect the left and right trusses into one body. 9. The order of dismantling the construction hoist is opposite to the installation sequence, namely: dismantling the electrical and hydraulic system→ dismantling the crane crane→ dismantling the front leg of the guide beam→ dismantling the connection frame and the guide beam, main beam→ dismantling the front leg and middle leg , Rear outriggers→Remove the front and middle horizontal movement rails. The above are the main points of the safety technology of the bridge erecting machine. If necessary, please contact Hoisting Machinery Co., Ltd.
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