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What is the specification for setting wall parts for tower cranes?
What is the specification for setting wall parts for tower cranes?
The holes and bolts between the wall-attached parts should be accurately corresponding and closely connected to avoid axial displacement; The end of the attachment rod near the building should be provided with an adjustable bolt device, and its adjustment length should not be greater than 200mm; ; When the top of the tower crane rises to the required anchorage spacing, the attachment device should be added, and the attachment device should be higher than the tower body in accordance with the factory regulations.
What are the common problems of tower crane attachment device?
1. Some builders don't have enough tower cranes to connect supporting facilities. When the building height exceeds the tower crane height, it cannot meet the corresponding construction requirements. At this time, there will be a phenomenon of filling the small with the large, and finally the tensile, torsional and compressive strength of the attachment device will be reduced.
2. In order to reduce the cost, the construction party did not set the adjustable bolt on one side of the strut during the construction, but adopted the welding method. If the foundation of the tower crane sinks evenly, the length of the strut can not be adjusted, which will bend the strut, greatly reduce its tensile strength, and may cause the problem of steel pipe fracture.
3. The construction party did not strictly control the verticality of the tower crane when installing it, and did not install adjustable bolts. When the height of tower crane is rising, its verticality will gradually appear obvious deviation.
4. In order to save trouble, when installing the tower crane, the construction party did not install the torsional support, or did not install it in a standardized way, which led to poor stability of the tower crane in the later construction and increased force transmitted to the attached poles.
Bian Xiao's words: That's all for the introduction of the specification of tower crane wall. I hope I can give you some reference. For more related content, please pay attention to Qijia Information.
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