For tower cranes with boom hinge height exceeding 100 m, anemometers should be equipped.

The tower crane with the height of the boom root hinge point exceeding 50m shall be equipped with an anemometer, which shall be sensitive and reliable.

According to JGJ 196-20 10 "safety technical regulations for installation, use and removal of tower cranes in building construction":

4.0. 16? When the working height of the tower crane exceeds 30m, obstacles should be set up; when the height of the articulated point at the boom root exceeds 50m, anemometers should be set up.

When the wind speed is greater than the working limit wind speed, it should be able to give an alarm to stop the operation. The anemometer should be located in the windproof place at the top of the tower crane. Work in strict accordance with the requirements of disassembly procedures and instructions. Stop dismantling when the wind exceeds level 4, and stop lifting the tower crane when the wind exceeds level 6.

Extended data:

Safety control measures of tower crane;

1. In case of strong wind with wind speed 12m/s or severe weather such as rainstorm, heavy snow and fog, the operation shall be stopped. After rain and snow, try hoisting, and work can only be carried out after confirming that the brakes are sensitive and reliable. There should be enough lighting for the construction at night, and the installation of lighting should meet the requirements of the current national standard "Technical Specification for Safety of Temporary Electricity Use in Construction Sites" JGJ46.

2, tower crane shall not lift the weight of more than the rated load, and shall not lift objects of unknown weight.

3. When the load of the hoisted object reaches 90% of the rated load, the hoisted object should be hoisted from the ground for 200mm~ 500mm first, and then the mechanical condition, braking performance and object binding should be checked. It can't be lifted until it is confirmed. For shaking objects, a sliding rope must be tied to stabilize them.

4, after the operation, should loosen the rotary brake, all parts should be placed in a non-working state, the control switch should be set to zero, and should cut off the main power supply.

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