The rebar worker refers to the person who uses tools and machinery to derust, straighten, connect, cut off, reshape and install the rebar skeleton. The following technical methods about the safety of steel workers are compiled by me for everyone. Welcome to read and browse.
(a) cut off (cutting machine)
1. When cutting, the distance between the hand and the blade shall not be less than 15cm. When moving the blade forward, feeding is prohibited.
2, cut off the steel bar, it is forbidden to exceed the carrying capacity of institutions, steel bar with a diameter of more than 12mm, should be single-cut, cut off special steel bars such as low-alloy steel, and apply high-hardness blades.
3. When cutting long steel bars, it should be equipped with brackets and supported by special personnel. The movements should be coordinated, and it is not allowed to drag at will. When cutting short steel bars, it is necessary to clamp the materials with sleeves or pliers, and it is not allowed to operate directly by hand. No one is allowed to stand within 2m in front of the discharge port.
4. When the machine is running, it is forbidden to clean the debris and sundries near the blade directly by hand.
5, no one is allowed to swing within the scope of reinforcement.
(2) Straightening (straightening machine)
1, objects are not allowed to be stacked in the straightener.
2. It is forbidden to operate with gloves. The roller should be kept at a distance of more than 30 cm. When the machine is running, it is not allowed to adjust the roller.
3, reinforced until close to the end, no one is allowed to shake in the reinforced possible range.
4, straightening steel bar diameter shorter than 2m or more than 9mm, should be done slowly.
(3) Derusting (derusting machine)
1, derusting shall be carried out after basic straightening, and hook reinforcement is strictly prohibited.
2. When operating, hold it flat and firm, stand on the side of the wire brush, and wear a mask, goggles and gloves.
(4) Bending (bending machine)
1, the steel bar is stuck on the baffle.
2, bending long steel bar, should be equipped with stents or specialist support, and stand on the outside of the steel bar bending direction, collaborators shall not drag, pull the steel bar.
(5) cold drawing (cold drawing machine)
1 During cold drawing, the operator must stand 2m away from both sides of the cold-drawn steel bar, and it is forbidden to stay at both ends. Retaining walls should be set at both ends, and baffles should be added to the tensioning trolley. The operator should stand on the diagonal of 45? Put the steel bar into the mouth of the fixture. After clamping the steel bar, put your hand on the outer wall of the fixture and hold it down. After the steel bar is tightened, you can let it go. Do not put your hand on the side or under the fixture.
2, workers in the selection of steel, beware of steel head cuts.
3, mechanical operators, must concentrate, obey the unified command, and pay attention to the life and death of the car, pay attention to observe and monitor whether the sound of mechanical operation is normal, found any abnormal situation, stop immediately.
4. Before using the winch for cold drawing, a protective baffle (which can also be used as a mesh baffle) or a guide device should be set.
5, cold-drawn work area should draw warning zone and make a sign, no pedestrians.
(6) Cold drawing (cold drawing machine)
1, should stand on one side of the drum operation, prohibit direct contact with the steel bar and drum by hand.
2. When the steel bar end passes through the cold drawing die, press the brake, and the clutch shall be separated immediately. At the same time, press the steel bar end with tools.
(seven) spot welding machine and butt welding machine (including pier machine)
1. Start operation is prohibited in any of the following cases:
The rainproof measures at the operating point are poor, and the ground is wet;
The welding machine has no reliable grounding (zero connection) device or poor wire insulation;
Flammable and explosive materials exist in the operation shed.
2. Wear protective glasses, gloves and insulated shoes when operating, and stand on a rubber board or a dry wooden board. When welding long steel bars, the supporting personnel on both sides should also wear insulating shoes.
3, found that welding head leakage, cooling water pipe leakage or exceed the prescribed temperature, should immediately stop processing.
(8) Binding
1, pay attention to the surrounding environment when handling steel bars, and don't touch people, conductors or other objects. When many people carry, they should shout slogans when starting, descending, turning and stopping, and keep coordination. No one is allowed to stand under the crane.
2, binding steel, binding wire head should be bent inward, temporary change hook, the operator shall not be too hard.
3, high operation of steel bar, must stand on the scaffold, not standing on the steel bar climbing up and down.
4, binding column, beam, wall reinforcement, the application of temporary support, pull firmly, column within 4m, the weight is not big, can be tied on the ground, floors, the whole erect, column reinforcement in more than 4m, should build a workbench.
5, binding foundation reinforcement, should be stipulated in the construction design layout steel bracket or horse stool, set the upper reinforcement, shall not arbitrarily reduce the bracket or horse stool.
6, tie the ring beam, overhangs, exterior walls and side columns of high-rise buildings, scaffolding should be set up and a safety net should be hung, and the safety belt should be hung when binding.
7. When lifting the steel skeleton, it is forbidden to stand below, and the skeleton can only be approached when it drops to 1m from the ground. After supporting in place, the hook can be unhooked.
8, bending steel bar to stick on the baffle, pay attention to the position and direction of rotation of the plug, shall not be wrong, and have someone to hold, standing on the outside of the steel bar bending direction, cooperate with each other, shall not be dragged.
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