Lifting construction of the starting unit frame of the large-span arched space frame

The space frame structure has good structural performance and a wide range of applications, especially for the installation of long-span steel structures. It has the advantages of saving steel, manufacturing technology, and convenient installation and construction. It is widely used in large-scale power generation facilities, petrochemical, coal fields and other industries. In the construction of coal yards, in the past, most of the coal yards were piled in the open air, which caused great environmental pollution and affected the normal use of the coal yards. The coal raw material workshops of thermal power plants required relatively large building areas and spans (currently, the domestic span has reached 120m above), so that the steel space frame shell structure is widely used in the raw material dry coal shed workshop. The shell structure of the space frame of the dry coal shed has the characteristics of large span and high vertical height. During the construction process, it is necessary to comprehensively determine a reasonable construction method according to different structural forms, combined with project progress and quality and safety requirements. At present, space frame installation methods include high-altitude loose assembly method, block installation method, sliding method, overall hoisting, etc.

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