In order to carry out the construction smoothly and ensure the safety in production, the following measures are formulated, which require bell workers and hook workers to study hard, abide by the implementation and ensure safety.
I. Hooking requirements
Prostitutes must obey the signalman's command. Hook comes from different jobs. Each project has a hook method for each type of work. You should take full responsibility for your hook work and ensure that the hook is firm and cannot fall off. At work, you should do the following:
1. 1, the hanging rope shall not affect the safety device of the hook, and it is not allowed to directly lift heavy objects with the hook.
1.2, thread the rope to ensure the center of gravity of the hanging object, choose the position of the hanging rope, thread the rope with an iron hook, and don't put your arm under the hanging object. When lifting a hanger with hard edges or easy sliding, it must be padded and lasso used.
1.3. The lifting ropes shall be hung in sequence, and the lifting ropes shall not be squeezed, crossed, squeezed or entangled with each other. Generally, hanging objects can be hung in pockets, so it is necessary to ensure the balance of hanging objects. For goods that are easy to roll or are too long, the rope method should be adopted, and the suspended rope should be locked with a snap ring.
1.4. Trial hoisting: hang the lifting rope firmly, and slowly hoist the crane. Tighten the lifting rope for a while, and do not lift it too high. During trial hoisting, the command bell man, hook worker and driver must be coordinated. If the center of gravity of the lifted object deviates or is stuck by other objects, the lifting must be stopped immediately, and measures must be taken to confirm the safety before lifting.
1.5. Rope tripping: The lifting rope can only be released after falling, stopping and supporting. For hanging objects that are easy to roll, slide and disperse, use safety hooks when taking ropes. Prostitutes are not allowed to stand on hangers. If it is difficult to remove the rope manually, other machines and tools should be used for assistance. It is forbidden to climb hangers and ropes.
1.6. Pull rope: the hook should be perpendicular to the center of the hoisted object, and the pull rope should be slow, and it is not allowed to be pulled obliquely or forcibly. For objects that are easy to roll and fall, do not use a crane to pull the rope.
1.7, the rope crane shall keep the lifting point position accurate, the rope shall not deviate, and the objects shall be balanced.
1.8. For lifting slender and easy-to-disperse articles, it is necessary to bind them for more than two times, and there should be two lifting points.
1.9. When hoisting components and equipment are suspended, they must be supported stably and connected firmly before leaving the site.
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1. 1 1, the hook must obey the command of the bell man, and there should be no extra psychology when hooking, and the correct suggestions put forward by the bell man should be actively obeyed.
Second, the signal command requirements
2. 1, signal conductor must be trained, and hold relevant certificates after passing the examination.
2.2. The signal conductor shall supervise the work of the hook worker, strictly control the work, bind and hang the objects firmly, so as to be foolproof, ensure that the objects below the hook are not scattered, and the conductor shall not collide with people and objects during operation, so as to complete all lifting work smoothly and safely.
2.3. Strictly implement the operation principle of "Ten No Lifting", namely: (a) When the weight of the hoisted object exceeds the allowable range of mechanical properties, it is not allowed to lift; (b), the signal is not clear, are not allowed to hang; (c) No one shall lift an object under him; (d) People are not allowed to hang things; (e), vertical components, large formwork, etc. No lifting without snap ring; (f) It is not allowed to hoist scattered objects without containers; (g) If the weight of the lifted object is unknown, lifting is not allowed; (h) It is not allowed to lift buried objects; (j), are not allowed to hoist cable-stayed and cable-stayed objects; (i) Loose objects are not allowed to be lifted if they are not firmly bound.
2.4. The commander should contact and discuss with the crane driver according to the specific regulations and requirements of the lifting command signal, so as to obtain the unanimous opinion of the bell man and the tower crane company in implementing the signal.
2.5, bell man standing position should be conducive to protect their own safety, can't stand in the collision, knock against, difficult to avoid, vulnerable, unprotected vertical walls and other dangerous parts.
2.6, command signal must be clear, accurate and standardized, to speak Mandarin.
2.7. When directing operations, you should also stand in a safe position where the tower can see the command signal clearly. When directing the movement of goods, always direct the goods to avoid people or long obstacles.
2.8. If the driver and the load can't be seen clearly at the same time, an intermediate commander must be added to transmit the instruction signal step by step, and a "stop" signal must be given immediately when the signal transmission error is found.
2.9 Before the load drops, it must be confirmed that the landing area is safe, and then the landing signal can be issued.
2. 10, when many people bind the same weight, they should call before lifting, and then command lifting after confirming that the binding is correct.
2. 1 1. When the bell man directs the operation, he shall not leave his post without authorization, and shall not concurrently serve as a hook worker.
2. 12, the upper and lower signals should be closely coordinated, the lower signal should obey the upper signal command, the signal command position should be appropriate, the command action should be easy for the driver to see, and the upper and lower signals should be easy to contact, so that the whole process of lifting and lifting in place can always be observed clearly.
2. 13. If there is any abnormality after the hanging object is suspended, the commander should quickly judge and urgently notify the personnel in the dangerous parts to evacuate quickly. Command the hoisted object to fall slowly, and then lift it after the danger is eliminated.
2. 14. During tower group operation, the commanders must cooperate well and pay attention to keeping the safe distance of the cranes. The safe distance of the boom of two cranes shall not be less than 5 meters to prevent the two cranes from colliding or hooking objects.
2. 15. Always check that the rods, buckles, ropes and fixtures under the hooks must be in good condition and effective, and replace them immediately if any hidden trouble is found.
2. 16, the signalman must enhance his sense of responsibility, be highly concentrated, have a clear signal, fully grasp people's psychology in time, fully estimate people's behavior, and make early prevention, early preparation, accurate reflection, quick judgment and decisive measures.
Third, the driver
3. 1, the driver must be trained, after passing the exam, show certificates. Drivers must be familiar with the performance of the machines they operate, operate in strict accordance with the instructions, and strictly abide by the "Ten Don't Hoist" and operating procedures.
3.2. The driver should master the structure, working principle and maintenance method of various safety protection devices of the crane he operates, and must immediately troubleshoot. The driver shall not operate the crane when the safety device is invalid, missing or inaccurate.
3.3 When the crane starts to work, the driver should first send out a sound signal to remind the personnel at the work site.
3.4. It is forbidden to directly hang heavy objects with hooks. Hooks must be used to lift heavy objects with slings, and the lifted heavy objects cannot be hung with heavy objects.
3.5. When lifting short broken materials, containers such as buckets or hanging cages must be used for lifting, and it is forbidden to directly bind and lift them. When lifting slender materials, the materials should be bundled at least twice and lifted by two lifting points, and the materials should be in a horizontal state during the whole lifting process. (6), lifting big template must use buckle card lifting. During the whole process of lifting heavy objects, swinging or rotating is not allowed. When lifting heavy objects with large volume, pull the rope.
3.6, lifting heavy objects, are not allowed to be fierce up and down, in case of scattered, loose, deflection, and so on and so forth in the process of lifting. When lifting, the heavy object must be lifted about 50 cm from the ground and stopped to check. Only when there is no problem with braking, bundling, lifting point and spreader can the operation be directed.
3.7, the driver must concentrate on the operation, when the safety device display or alarm, must be in accordance with the relevant provisions of the operating instructions.
3.8. When operating the controller, you must start from scratch and press the required gear step by step. When the transmission moves in the opposite direction, the controller will first return to zero, and then gradually reverse the operation. No over-gear and emergency parking.
3.9 In the process of lifting, when the hook pulley block is 5 meters close to the boom, it should be lifted at a low speed to prevent the boom from slipping.
Fourth, hoisting
4. 1, tower crane structure (weld and deformation), safety devices, institutions, electrical, hydraulic and other components are inspected on the ground, and can be installed only after passing the inspection.
4.2, team education and make records, safety technical disclosure.
4.3, the installation site should have a unified commander, do a good job of safety monitoring, and make records of time, wind, participants and equipment cooperation during installation.
4.4, abide by the management regulations of the construction site, wear safety helmet, fasten your seat belt.
4.5, lifting personnel must be trained and show certificates. Strictly abide by the operation procedures and disassembly plan.
4.6, it is forbidden to drivers, disassembly workers, commanders drunk homework, not throwing tools and objects at high altitude, smoking is strictly prohibited.
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