What are the main measures for tower crane to prevent falling objects from high altitude?

what are the main measures for tower crane to prevent falling objects? Precautionary measures for falling objects at construction sites: 1. Falling objects at construction sites often occur in all kinds of climbing operations, scaffolding operations, tower crane operations, external elevator installation operations, and air interface and border operations. Therefore, before construction, the construction unit should prepare special construction organization design and formulate safety technical measures to prevent falling from high altitude and objects from hitting accidents. The site should be equipped with guardrail nets, railings or other safety facilities according to specific conditions, and they should be implemented in strict accordance with the organization design during construction. 2, high pier, beam construction and other aerial work projects, there must be reliable safety protection measures. Safety facilities for aerial work must be checked and calculated strictly, installed strictly according to the design, and conform to the provisions of relevant safety regulations. Those who work above 3 meters must wear safety belts, and set up protective nets and other anti-falling facilities when necessary. 3. Personnel engaged in aerial work should have regular physical examinations. If they find that there are symptoms that are not suitable for climbing, they should not engage in aerial work. It is strictly forbidden for people with high blood pressure and cardiovascular and cerebrovascular diseases to work at heights. It is strictly forbidden to work at heights after drinking. Bridge pier construction formwork, scaffolding and support are reinforced by cable wind rope; Aerial work personnel shall not wear high-heeled shoes, slippers or hard-soled shoes, and the required materials shall be prepared in advance. 4. All operators working at heights must receive education on safety knowledge and safety prevention. Operators working at special heights must hold relevant certificates. Before taking up their posts, they must be able to carry out special safety technical disclosure according to relevant regulations, and those who accept the disclosure must perform the signing procedures. For those who adopt new technology, new technology, new materials and new equipment, the relevant safety technical disclosure must be made to the operators in accordance with the regulations, and the educated people must perform the signing procedures. 5, the construction site must be in the corresponding parts, according to the category, targeted to put up all kinds of safety warning signs, set up a red light warning at night. In case of gale above level 6, aerial work should be stopped to ensure the safety of construction personnel and equipment. 6, aerial work must be set up to prevent falling objects, and conform to the requirements of JBJ8-91 "Technical Specification for Safety of Working at Height in Building Construction", and implement three-level management according to GB368-83 "Classification Standard for Working at Height". 7. Before installation, the material hoist, elevator for external use and tower crane must prepare the installation and dismantling construction plan. After the construction plan is reviewed and signed by the person in charge of equipment, the person in charge of the project, the safety management personnel and the technical personnel, it can be implemented only after it is reported to the relevant personnel of the company's competent department for review, and then submitted to the company's chief engineer for approval and signature. After the installation of material hoists, construction elevators and tower cranes, the construction unit must carry out acceptance before use, and the operation can only be started after the acceptance is signed. 8. All kinds of limits of elevators for external use in construction must be sensitive and reliable. The floor door must be provided with protective measures to prevent people and materials from falling, and there must be no obstacles in the elevator's up-and-down running trip. When passengers and goods are carried in the elevator car, it is forbidden to overload, and the load should be evenly distributed to prevent being biased. The elevator for external use in construction should have a complete floor stop device, and each floor should have clear signals and floor markings. 9. Other preventive measures for falling objects from high altitude: such as elevator wellhead, stairway, reserved hole, access opening and all kinds of edge protection, special safety protection measures must be formulated. Protective facilities should be standardized and instrumentalized, and closed tightly. Set up a safety flat net. When installing and disassembling the safety flat net in the elevator shaft, the operators must wear safety belts as required. Tower crane is one of the essential aerial work in the construction process of building engineering. Sometimes, there may be major safety hazards in the tower crane itself, and the actual case of sudden collapse of the tower crane in the construction process is not without. All kinds of preventive measures against falling objects should be drawn up in advance before the construction, and the bad consequences caused by falling objects at the construction site are not easily borne by the relevant people.