132HC Mast Section General requirements for inspection and evaluation of tower crane
Inspection and evaluation requirements for tower crane
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Structural facilities
1. The deformation and corrosion of main structural parts shall be within the allowable range of the specification.
2. The setting of platform, walkway, ladder and guardrail shall meet the specification requirements.
3. The fastening and connection of high-strength bolt, pin shaft and fastener shall meet the specification requirements, and the high-strength bolt shall be fastened with torque wrench or special tool.
Electrical safety
1. The tower crane shall be powered by TN-S neutral protection system.
2. The safety distance and protective measures between tower crane and overhead line shall meet the requirements of specifications.
3. The tower crane shall be installed with lightning protection grounding device, which shall meet the specification requirements.
4. The use and fixation of cables shall meet the specification requirements.
Attachment
1. When the height of the tower crane exceeds the requirements of the product specification, the attachment device shall be installed, and the installation of the attachment device shall meet the requirements of the product specification and specifications.
2 when the horizontal distance of the attachment device cannot meet the requirements of the product specification, the design calculation and approval shall be carried out.
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3. The load-bearing structure of the building where the internal climbing tower crane is installed shall be calculated.
4 the perpendicularity of tower body before and after attachment shall meet the specification requirements.
Foundation and track
1. The tower crane foundation shall be designed, tested and accepted according to the product specification and relevant regulations.
2. Drainage measures shall be set for the foundation.
3. The laying of subgrade box or sleeper shall meet the requirements of product specification and specification.
4. The track laying shall meet the requirements of product specifications and specifications.
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