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The construction enterprise or tower crane owner shall submit the production license, product certificate, disassembly license, operation manual, electrical schematic diagram, hydraulic system diagram, driver operation license, tower crane foundation drawing, geological survey data, tower crane disassembly scheme, safety technical disclosure The quality assurance certificate of main parts (steel wire rope, high-strength connecting bolt, anchor bolt and main electrical components, etc.) shall be reported to the tower crane inspection center. After passing the inspection by the tower crane inspection center, the safe use certificate shall be obtained, and the handover records with the project management department after installation. At the same time, the dynamic tracking management of the tower crane shall be strengthened in daily use, and the machine shift records shall be made Inspection records and maintenance records (including minor repair, medium repair and overhaul) shall be signed by relevant responsible persons. Materials and vulnerable parts replaced in the process of maintenance shall be provided with certificate or quality certificate, and the above materials shall be sorted and filed in time, and an account of one machine and one file shall be established.

2. Disassembly management

Disassembly and assembly of tower crane is a frequent stage of accidents. Safety accidents caused by improper disassembly and installation quality account for a large proportion. The disassembly and assembly of tower crane must be carried out by a qualified disassembly and assembly unit, and the installation and disassembly shall be carried out within the scope of qualification. The disassembly and assembly personnel shall receive special professional training, have certain disassembly and assembly experience and work with certificates. At the same time, the personnel of various types of work shall be complete, have clear posts, perform their duties and obey the unified command. In the process of commissioning, the technical level and sense of responsibility of professional electricians are very important. Electricians shall hold electrician certificate and lifting work certificate. We make statistics on a large number of tower crane detection data, It is found that a disassembly and assembly unit in our city has installed a total of 54 tower cranes so far this year, while 47 have failed in the first inspection, and the first inspection qualification rate is only 13%. Most of them are due to the poor installation technical level of installation electricians, the neglect of management of disassembly and assembly units, and the safety awareness needs to be further improved. Therefore, we have carried out special treatment to strengthen business training for the unit, and achieved good results. In addition, because the disassembly and assembly cost in the disassembly and assembly market is not in accordance with the budget price, there is even 400 ~ 500 yuan to install a tower crane, which is also an important reason for the decline of installation quality. A special disassembly and assembly plan shall be prepared for disassembly and assembly. The plan shall be reviewed and signed by the technical director of the installation unit, and the warning area and warning line involved in disassembly and assembly unit shall be arranged for special personnel to command. Irrelevant personnel are not allowed to enter the site, and the operation shall be carried out in strict accordance with the requirements of disassembly and assembly procedures and instructions. When the wind force exceeds level 4, the disassembly and assembly shall be stopped, and the tower crane shall be stopped when the wind force exceeds level 6. If it is really necessary to work at night under special circumstances, sufficient lighting shall be provided. If it is really necessary to work at night under special circumstances, full consultation and consensus shall be reached with the truck crane driver on the disassembly procedures and precautions.