1. How to install the tower crane
Tower cranes on construction sites are very high, especially on some construction sites where high-rise buildings are built. Tower cranes are often hundreds of meters high. So how is this tower crane installed?
1. The first is the reinforcement of the tower crane foundation. When using a tower crane, the choice of the tower crane foundation is very important. When the bearing capacity of the foundation cannot meet the tower crane, if it cannot be effectively reinforced, Then there may be more serious consequences.
2. Then raise the tower crane. The tower crane body is assembled from ordinary sections. It is installed with a crane on the ground. When it reaches a certain height, careful friends will find that the top “iron cage” is slightly larger than the one below. It is actually the climbing joint. The height and size around the climbing section are larger than those of the ordinary section. At the same time, there is a hydraulic jack here. The lifting of the tower crane is completed by the lifting of the hydraulic jack. When lifting, a common section is hung from the front end of the horizontal boom to balance the horizontal boom. When the jacking is completed, this section can be used for splicing, so that the tower crane is raised little by little.
A brief summary of the installation steps: fix the tower crane foundation → install the tower crane standard section → install the climbing sleeve → install the slewing → install the slewing tower → install the driver’s cab → install the balance arm → install the A frame assembly → hoisting Crane arm→Thread wire rope and hook→Add standard section and equipment debugging.
2. Safety precautions for tower crane installation
The installation of tower cranes is generally installed or supervised by professionals to effectively ensure the stability of the tower crane. During the installation of the tower crane, Also pay attention to the following safety matters:
1. Before installing the tower crane, the tower crane foundation should be inspected: Check the tower foundation concrete pressure test report, and the installation of the tower crane can be organized only after the concrete reaches the design strength. The horizontal error of the upper surface of the concrete tower foundation shall not be greater than 0.5mm. The concrete tower foundation should be 150mm higher than the natural ground, and good drainage measures should be provided. Water accumulation in the tower foundation is strictly prohibited.
2. Before installation, all parts of the tower crane itself, including structural welds, bolts, pins, guide wheels, wire ropes, hooks, spreaders, lifting hydraulic climbing systems, electrical equipment, etc. Carry out careful inspections and resolve problems promptly.
3. Check the tower crane switch box and power supply line to ensure safe power supply during operation.
4. Check whether the technical performance of the installation and use of equipment is good, check whether the safety protection supplies used during installation meet the requirements, solve problems immediately if any problems are found, and ensure the use of machinery, equipment and safety protection supplies installed and used during the installation process. Safety.
5.During the installation of the tower crane, the site must be kept clean and orderly to avoid hindering the operation and affecting safety. Set up a cordon in the work area and assign a dedicated person to be responsible for the warning to prevent people unrelated to tower crane installation from entering the tower crane installation site.
6. Tower crane installation must be carried out during the day and should be avoided in rainy, windy and foggy weather. If the weather suddenly changes during operation, the operation must be stopped.
7. Those who participate in the installation of tower cranes must be specially trained by the labor department and hold a certificate after passing the examination. Personnel involved in tower crane installation must wear safety helmets, and personnel working at high altitudes must fasten seat belts, wear non-slip shoes and work clothes. During operations, unified command and coordinated movements are required to prevent accidents.
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