How to ensure the safe use of tower cranes in construction site

 With the continued growth of China's economic construction, the construction industry developed rapidly. Tower crane lifting equipment is an important construction jobs in recent years, when the country tower crane accidents have occurred, some casualties occurred, therefore, strengthen the management of the tower crane, is particularly important to ensure the safe use, but the majority device management workers engaged in an important issue to be faced.

1 Several factors affect the safe use of tower cranes

1.1 tower crane rental only cheaper price, the safety device configuration is not complete, aging equipment, cluttered, mix and other standard section.

1.2 all kinds of documents are not complete, no property unit testing proved.

1.3 installation process, not advance to the scene to view the base, the scene surrounding environment, not to develop the demolition program, do not follow the requirements of the operating instructions, no special command and other accidents caused by human factors.

1.4 equipment acceptance without instruction seriously acceptance, acceptance of non-standard, non-proprietary units, construction units, installation units, supervision units stamped signature.

1.5 equipment use, the operator without the rigorous training, there is evidence but not the operation, unauthorized removal of safety equipment, maintenance and inspection cases are not in place, overloading, gale force operations, misuse or place too long without seriously testing. In order to catch up period break people prodigiously equipment, accelerated shorten equipment life and cause unexpected accidents.

2 measures to ensure the tower crane

2.1 First, before the device comes into play, such as the purchase of new equipment, tower crane manufacturer must inspect, use the community generally reflect the good equipment, you must ensure that the equipment is free from design defects, design defects, such as small car because no anti-tilting device, no anti-off pulley lifting apparatus, lifting hoist no couplings, accidents happen. At the same time we must ensure that manual, certificate, production license complete.

2.2 If the rented equipment must complete procedures, manuals, certificates, licenses and other products. Before entering must be strict inspections of each safety device configuration is complete, whether the steel corrosion, cracks, open welding, each drive pulley whether the requirements, for wear reaches retirement conditions, luffing, slewing, hoisting systems must in the field test run, the trial must meet the requirements, the need for strict inspection, non-standard section appears mixed, played by equity units issued proof testing qualified.

2.3 equipment demolition management approach, you must use a qualified hoisting teams, must be understood before the implementation of the construction environment before entering the construction site, the surrounding roads, high voltage lines and the original building, and so be aware of, and tower crane demolition program prepared by the technical director.

2.4 must be set according to field conditions cordon to prevent unnecessary personnel to enter and take advantage of the "three treasures" carefully organized demolition understand equipment performance, installation of the demolition personnel safety technical disclosure. Must be subject to supervision of the construction site security officer and supervision units is prohibited to wear shoes with nails slippery winter have a non-slip, freezing measures, prohibited the use of a single cord lifting formations during the job, it is prohibited any missing parts must be clear division of labor, job process must have someone in charge of directing and equipped with armband, unified staff clothing.

2.5 tower crane lifting operations must prospectus requirements, meticulous in strict accordance with operating procedures, more than four winds prohibited jacking operations, attached to the wall anchor installation work according to the same specification requirements and installation program.

2.6 installed, the tower crane wiring test must operate according to the instruction, each must be prepared to test the safety limit devices, wiring and commissioning certificate issued.

2.7 tower crane after installation must be performed by the construction unit, the demolition unit, property units, supervision units to conduct joint inspection, and signed and sealed. By the qualified technical supervision departments to carry out all aspects of the tower crane is detected after the test report issued by qualified construction units must go to the local construction administrative department in charge of registration.

2.8 device officially put into use, the construction unit operator must obtain permits Provincial Construction Authority personnel or labor department issued by the unified management of equipment management department registration, work conscientiously make daily operation records and maintenance records. Equipment sick operation is strictly prohibited, prohibited people break prodigiously equipment, non-accelerated wear and fatigue cause the device to use a variety of safety devices is strictly prohibited without permission removed, found a job as a safety device alarm must promptly investigate the cause.

2.9 The operator must carefully follow the "Ten Principles do not hang," and subject to project security staff supervision, supervision unit is especially recommended measures proposed to actively implement, and in strict accordance with the "cross" approach to the job (ie adjustment, fastening, lubrication, corrosion, cleaning) were seized class example of tower crane to be checked daily record of the project safety officer.

2.10 shift operation, the operation must be recorded in succession to pay staff and all control switches to zero, cut off the power.

2.11 administrations by the device, according to various documents issued by the higher authorities, to develop management measures imposed by strict management heavy penalties. And occasional inspection and monthly inspection to ensure that the equipment safe and accident.