GB/T 33080-2016Safety assessment code for tower cranes (English PDF)

3.1 Safety assessment

The equipment structure, mechanical parts wear, corrosion, cracks, deformation and other conditions to check and measure the operation of the machine and bearing

The ability to test, to determine its normal use, downgrade or not use the activities.

3.2 Degrade use

Due to equipment structure, mechanical parts or safety performance can not meet the original design requirements, the safety assessment, reducing the use of equipment technical parameters

Or limit the use of part of the situation. The demotion is divided into two categories for the use of mild downgrades with heavy degradation.

4.1 General

The main contents of the safety assessment of tower crane include data inspection, disintegration inspection, operation test and machine evaluation, as follows.

a) The scope of the data inspection includes equipment technical documents and safety technical files. On the identification of incomplete, no use of maintenance records, can not trace the system

Information or no use, transformation, maintenance of the tower crane, should not be a safety assessment.

b) disintegration inspection including structural, mechanical major parts, safety devices and electrical system inspection. Disintegration examination focuses on the structure,

On the basis of a comprehensive visual inspection, according to the procedures required to check its corrosion, wear, cracks, deformation and so on. On the mechanical master

To the parts, safety devices and electrical systems, check the focus is the appearance of the state.

c) The test shall include pre-test and load tests, and structural stress tests shall be carried out if required. Operation test main inspection machine […]