1. Management requirements 1. For tower cranes entering the site, products with product production certificates, reliable quality, good reputation and factory certificates should be selected based on full investigation and verification. 2. The professional team selected for tower crane installation and dismantling must hold valid qualifications issued by the Ministry of Housing and Urban-Rural Development or the local construction administrative department and have a strong professional leasing subcontracting team. 3. Establish and improve the "tower crane usage management position responsibility system" for general contractor and subcontractor tower crane safety management, maintenance, operation, and command personnel. 4. The installation, use and disassembly of tower cranes should strictly comply with the regulations and safe operating procedures in the "Installation and Maintenance Instructions" of each model. 5. Before the installation and disassembly of the tower crane, a professional leasing subcontractor should prepare an assembly and disassembly measure plan, which can only be implemented after approval by the project chief engineer. Personnel involved in disassembly and assembly must be given careful safety technical briefings, with a clear division of labor and assigned responsibilities to each person. Follow the assembly and disassembly procedures and follow the instructions of the relevant person in charge. The machinery safety officer will monitor the entire process. 6. All electrical protection devices and safety devices of various parts of the tower crane should be carefully inspected before installation to confirm that they are intact and effective before installation. Supervision and inspection of the installation process should be strengthened to ensure the intrinsic safety of the equipment. Mechanical equipment without protective devices shall not be used. For live parts of the equipment, safety protection measures should be taken during installation to prevent electric shock accidents. 7. After the tower crane is installed, the installation unit will conduct debugging according to regulations. The safety devices of each part must be inspected for reliability, and the entire machine must be subjected to a load test. Conduct comprehensive self-inspection and acceptance, and archive installation and debugging data and acceptance records. (1) On the basis of self-acceptance, the project department and the supervision unit shall form an acceptance team to review the acceptance and carefully fill in the acceptance record according to the acceptance form. (2) On the basis of review and acceptance, submit it to the local government department for final acceptance. If the inspection and acceptance pass, a "Registration Certificate for Use" will be issued. If it fails, a "time-limited rectification instruction" will be issued and re-inspection will be carried out after the rectification is completed. (3) Equipment without final acceptance by the local competent authority is prohibited from use. 2. Technical management 1. The tower crane operating unit should formulate or improve the implementation details of tower crane safety management. 2. The tower crane should have complete stand-alone technical files. 3. The safety devices of various parts of the tower crane and important structural parts should be inspected regularly, and hidden dangers should be eliminated in a timely manner, and work while sick is not allowed. 4. Professional tower crane operation units shall regularly organize relevant rigging, maintenance, and command personnel to learn safe operating procedures. 5. During maintenance of the tower crane, its structure, technical parameters and electrical control system must not be modified arbitrarily. When modifying it, the modification plan must be proposed in advance, and it can only be modified after it is approved by the competent department and approved by the project chief engineer. The modified parts shall be subject to performance inspection, and their performance shall not be lower than the original design standards. 6. Strengthen the inspection and management of wire ropes. The selection of wire ropes must comply with regulations, and the scrap standards for wire ropes must be strictly implemented. 7. Strict rigging management. Materials for spreaders, lifting rings, and buckles should be selected according to regulations. Repair welding and drilling of fishing hooks, lifting rings, etc. is strictly prohibited. Fishing hooks must be equipped with anti-decoupling insurance. 3. Training and management of tower crane operators 1. Tower crane operators and installation and demolition personnel must comply with relevant national regulations, undergo specialized safe operation training, and obtain special operation qualification certificates before they can start working. 2. The tower crane implements the captain responsibility system and shift handover system, and records the inspection and operation status of each shift in detail. 3. The tower crane driver must obey the instructions of the ground commander, and when he hears (sees) the emergency stop signal, he should immediately take safe parking measures. 4. The tower crane driver must be "never afraid of hanging". 5. Rigging workers must be familiar with the basic performance of lifting equipment and the maximum allowable load and scrap standards of various lifting and rigging equipment; be familiar with binding and hanging requirements and command signals; and strictly implement the safety technical operating procedures of this type of work. Other personnel are prohibited from engaging in bundling and hooking work without authorization. 6. Tower crane commanders should be trained, be familiar with the basic knowledge of crane engineering, and be proficient in command signals. The conductor may not also perform hook work. Strictly enforce orders without a license or in violation of regulations. For high-rise buildings, there should be two commanders at the top and bottom. Commanders should use walkie-talkies to ensure correct command and safe construction of vertical transportation equipment. 7. Tower crane operators and commanders are not allowed to leave their posts without reason during working hours.

8. The management of material lifting is coordinated by the project engineering department. Each subcontractor must submit an application in writing before 16:00 on the day before using the vertical transportation equipment, fill in the tower crane use application form, and report it to the project department for unified arrangement. The project safety department supervises and ensures the efficient, orderly and safe use of equipment. 4. Maintenance and maintenance work of tower crane 1. Keep the whole machine clean regularly and clean it in time. After the tower crane is installed and after normal maintenance, debris, fragmentary accessories, and tools left on the rear arm must be cleaned up to prevent objects from falling from height during use of the tower crane. 2. Regularly check the oil level of each reducer and add oil in time. 3. Pay attention to check whether any parts of the wire rope are loose, broken, or worn. If the wire rope exceeds the relevant regulations, it must be replaced in time. 4. Check the efficiency and clearance of the brake to ensure reliable sensitivity. 5. Check the sensitivity and reliability of each safety device, conduct safety performance checks on important safety devices regularly and make test records. 6. Check the tightness of each bolt, especially the connecting bolts of the tower standard section. They must be retightened after each use for a period of time. 7. Check whether the pressure plates and clips of each wire rope head are loose. If they are loose, tighten them in time. 8. Check the scrapping of wire ropes, drums, pulleys, hooks, etc. and strictly implement the "Safety Regulations for Tower Cranes" (GB5144-94) and "Care, Maintenance, Installation, Inspection and Scraping of Crane Wire Ropes" (GB/T5972- 2009) regulations. 9. Check the rods, web rods and welds of each metal structural member for cracks. Pay special attention to the places and parts where the paint peels off, especially the 45-degree diagonal stripes of paint peeling off which are the most dangerous. The cause must be quickly identified and repaired in time. deal with.

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