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Safety technical disclosure of tower crane installation and removal
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Safety disclosure content: 1 technical disclosure of tower crane installation safety 1, tower crane installation shall be formulated by the competent department according to the requirements of the manual and the actual situation of the construction site. 2, installation workers should have a professional team and obtain the qualification certificate issued by the relevant departments at the municipal level, and designate a person to shake the number. 3, all installation and demolition personnel do show certificates, according to the rules, the full implementation of the installation plan. 4, tower crane driver belongs to special operations personnel, should go through formal training and obtain a certificate of competency, competency certificate and training assessment content, must be adapted to the type of crane driven by the driver. 5. Tower crane commanders should pass the training assessment and obtain the certificate of qualification. The fingering signal shall conform to the national standard GB505C-85 "Lifting Command Signal". 6, tower crane driver can't clearly hear the signal command flute and see gestures, should be combined with the actual scene to switch to semaphore or intercom command. 7. Tower crane cables are not allowed to mop the floor. Cable reels with tensioning devices should be installed. As the tower crane walks, the cable reels will automatically wind to prevent the cables from rubbing against sleepers or being entangled by sundries on the track. 8. The safe distance between the overhead line and the tower crane on the construction site shall be in accordance with the Code for Temporary Electricity Consumption: "The minimum distance between any part of the rotary jib crane or the edge of the hoisted object and the sideline of the overhead line below 10KV shall not be less than 2m". Tower crane should adopt good repeated grounding and mildew-proof grounding, and high-voltage insulating rubber pad should be laid in the cab. 9, tower crane power cord should be protected by zero, work zero line must be separated. Lighting and obstacle light control switches should be set independently, so five-core cables should be used and leakage protectors should be installed. 10, jack-up tower jack-up operation, there must be specific requirements to keep the boom and balance arm in a balanced state, jack-up steps in the process of jack-up and reliable measures to prohibit rotary operation. Jack-up operation is not allowed when the weather is above 1 1 and there is a four-level wind. 12, it is forbidden for installation workers to work after drinking. 13. The trial operation acceptance of tower crane shall include three parts: technical inspection, no-load test and rated load test, which shall be inspected once a month. 14. The personnel participating in the commissioning acceptance and the test results shall be recorded in detail and truthfully, and signed by relevant personnel to confirm that they meet the requirements. 15. If the durability of tower crane foundation cannot meet the design requirements, reinforcement measures must be taken after calculation. 16, after the installation of tower crane, it should be reported to the municipal competent inspection department for inspection and acceptance before use. 2. Safety technical disclosure of tower crane dismantling 1, and the dismantling plan is made according to the overall project schedule and the structure of the machine. 2. In case of thunderstorm and gale above level 4, stop working.
Safety technical disclosure
Date of disclosure of unit project name
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Safety technical disclosure of tower crane installation and removal
Name of production team
3, the construction plan should have organizational leadership and labor combination content, demolition work should have a project manager, technical director, scheduling, safety personnel and other personnel to form a leading group, responsible for internal and external coordination, safe progress, unified command, individual. 4. according to
Demolition plan, lifting command to carry out demolition, sequence, verify the weight of each piece, find the center of gravity, and lift the components and structures, and the safety factor of the slings shall be no less than 6. 5. The foreman should carefully check the broken wire and wear of the sling, and check the shackle for cracks and deformation. 6, cooperate with the crane driver should strictly implement the safety operation procedures. Put the crane in place and run as planned, especially when the removed parts of the tower crane will be hoisted away, the hook operation should be slow and the driver should not leave the cab. 7. The electrician should carefully check the electrical circuits and components of the tower crane, number the removed cable joints, and properly keep the removed electrical facilities. 8. When disassembling the tower crane, if welding and cutting operations are needed, the welder must remove flammable materials such as oil drums and cotton yarn from the machine before hot work. The machine shall be equipped with two carbon tetrachloride fire extinguishers for standby. 9. During the up-and-down cross demolition operation, protective shed or isolation facilities shall be erected; When working near the edge of all heights on the plane, the operator must fasten his seat belt. 10. delimit the warning zone. Any vertical projection area of the dismantled tower crane and the working range of the crane should be designated as dangerous working areas, and safety belts (ropes) should be put on to prohibit irrelevant personnel from entering. 1 1. All operators should wear safety helmets, soft-soled shoes and clean clothes and trousers. 12, hammers, wrenches and other tools should be put into the tool bag, and it is forbidden to throw down the removed bolts. When working, keep the tools steady to avoid slipping. Use a wrench, etc. Use moderate force to prevent the body from falling unsteadily due to excessive force. 13, before lifting components, remove their floating objects. When lifting, the driver sends a signal with the electric bell, and the staff reminds each other and retreats to a safe place in time. 14, all actions on the site should follow the command and pay attention to unity and cooperation. Don't play and joke to avoid accidents. 15, special operations personnel are required to hold relevant certificates, and it is strictly forbidden to direct operations without a license. Full-time security officers shall be set up at the site to do a good job in site safety monitoring. 3. Track tower crane 1 Use safety technical disclosure. Tower crane should be operated by a full-time driver, who must hold relevant certificates. And should be commanded by a full-time commander with a certificate. 2, must abide by the "ten don't hang" and other relevant safety regulations. 3, tower crane after installation, must be in accordance with the provisions, after the commissioning acceptance certificate shall apply mutatis mutandis to, before use. 4, homework at night must have enough lighting. 5, crane must have a reliable grounding, and install the leakage protector, high-voltage insulation pad on the cab, all electrical equipment shell should have reliable protection to zero. 6, crane track can not have obstacles or sinking phenomenon. The rail clamp bolts are complete and effective, and the rail ends should have supporting and limiting devices.
Safety technical disclosure
Date of disclosure of unit project name
Part of the project scale
Safety technical disclosure of tower crane installation and removal
Name of production team
7. Before work, check the lubrication of the transmission part, the wear of wire rope and various limit and safety devices, etc. If it does not meet the requirements, it should be repaired in time, and the formal construction can be started only after the trial operation is normal. 8, the driver must get the command signal, before operation, the driver must ring the bell and signal rear can operate. 9, work rest or after work, shall not be heavy hanging in the air. 10, boom tower crane line
Walking, turning and lifting can be carried out at the same time, but the luffing action should be carried out separately. 1 1. After the work is finished, stop the crane in the middle of the track, clamp it on the track with rail tongs, and raise the hook to the upper limit. The boom should rotate in the direction parallel to the track. The boom of the luffing tower crane with movable arm should be placed at the minimum radius of gyration, and the trolley of the luffing tower crane should be placed at a distance of 2m from the root of the boom. All controllers must be turned to the stop position, and the main power switch must be turned off.
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