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Elaboration of the basic design and installation points of tower crane on the fundamental guarantee of the stability and operation safety of the whole machine
Release time:
2025-08-25
Verticality measurement must be carried out, and the deviation of the tower crane axis from the lateral verticality of the support surface should not be greater than the corresponding standard requirements.
As the core vertical transportation equipment on the construction site, the stability and operational safety of the tower crane first depend on the reliability of the basic design and installation links.The foundation is the foundation of the tower crane, and it must be specially designed according to the model of the tower crane, the maximum independent height, the engineering geological conditions, and the surrounding environment of the site.Usually concrete independent foundations or pile foundations are used, and their dimensions, reinforcement and concrete strength grades must be constructed strictly in accordance with the basic drawings provided by the manufacturer or the construction drawings issued by qualified design units.The foundation concrete needs to reach the design strength before the tower crane can be installed. The deviation of the position, elevation and verticality of the embedded anchor bolts must be controlled within the allowable range. Any slight deviation may cause the installation of the tower body to tilt, laying safety risks for subsequent use.
The installation process is the key process for the safe use of tower cranes.It must be carried out by a professional team with corresponding qualifications in accordance with the special construction plan, and the installation process must be strictly implemented.Before installation, all structural parts, connecting parts, wire ropes, and electrical systems should be thoroughly inspected to ensure that there are no defects such as deformation, cracks, and excessive wear.The connecting bolts of the standard section of the tower body must be tightened with a torque wrench according to the prescribed torque, and anti-loosening marks must be made.Jacking and jacking is one of the most risky links in installation. It is necessary to ensure that the hydraulic system is working normally, that the jacking beam is in place correctly, and that it is carried out at the specified wind speed.The gap between the frame and the tower body needs to be adjusted evenly to prevent stagnation.The weight and placement of the balance weight and pressure weight must be accurate.
The acceptance and commissioning after the completion of the installation is the final confirmation of the foundation and installation quality.Verticality measurement must be carried out, and the deviation of the tower crane axis from the lateral verticality of the support surface should not be greater than the corresponding standard requirements.Conduct no-load and rated load tests to verify the accuracy and reliability of the actions of various mechanisms of lifting, rotating, luffing, and walking (if any), and check the sensitivity and effectiveness of safety devices (such as torque limiters, weight limiters, height limits, rotation limits, etc.).Only after passing a comprehensive inspection and fulfilling relevant notification or filing procedures can the tower crane be officially put into use.Regard the foundation and installation as the starting point of the safety lifeline of the tower crane, and run through the whole process of survey, design, construction, and inspection with a rigorous attitude. It is the first and most important line of defense to ensure the safety above the construction site.
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