With the construction of EHV and UHV power transmission & transformation projects,the application of latticed steel structure has become more and more popular and the installation technology and safety control of the steel structure are given more attention nowadays.

These structure systems include steel latticed structures, prestressed steel latticed structures, reinforced concrete latticed structures, steelconcrete composite structures and prestressed steelconcrete latticed structures.

A set of complete installation technology of large hub-wheel steel structure is generalized,which combines the merits of pulling bars and supporting columns according to the analysis of vaulting steel structure and on-site conditions.

Exploring scientific,reasonable structure and format of profit distribution forms,which helps better to suffice rational understanding and appropriate analysis exercise of accounting information analysis for its users.