Simulation And Monitoring Of Large Span Steel Structure Construction

Since 2001, after the successful Olympic bid, China ushered in the climax of the development of large-span steel structure. However, as a result of its large span, the technology of steel structure is complicated. And the load in construction process is very different with the design load, irrational construction process and technology can often lead to structural damage in the construction process. So, effectively simulate before the construction of the structure is very necessary.This article is based on a lot of basic engineering research. Taken Wanda Mau water park as the research object, simulate by finite element analysis software MIDAS Wanda Mau water park actual construction process and methods to analyze the feasibility of the construction program and guidance from pre truss arch, provide the basis for optimizing the construction program and to develop a reasonable construction process. The main contents are as follows:1) First, a detailed description of the basic theory of construction mechanics and conventional construction process simulation analysis. By comparison, for large and complex structures, the most reasonable method of construction is the use of finite element method analysis to a one-time construction modeling analysis conclusion of the entire structure of the state. And construction software MIDAS was used in this paper describes the construction principle analysis provides a theoretical foundation for the next construction process simulation.2) Through the water park during the installation of steel structures, processes and sub-hoisting steel truss unloading three aspects of research to identify the focus of the construction process and difficult. At the same time lifting the truss, seated and fixed the problems that need attention focuses, select Settings and lifting point and snap rings are calculated and studied.3) By using MIDAS / Gen software for the construction of the water park include process simulation analysis of steel erection, installation and uninstallation of three processes to obtain the structure of the entire construction process, changes in theoverall structure of the displacement and the part of member forces, verification structure lifting, installation sequence, the temporary support scheme, feasibility and structural safety unload programs to ensure the structural stability safety in the construction process, and provide theoretical guidance for the development of the construction program.3) By using MIDAS / Gen software for the construction of the water park include process simulation analysis of steel erection, installation and uninstallation of three processes to obtain the structure of the entire construction process, changes in the overall structure of the displacement and the part of member forces, verification structure lifting, installation sequence, the temporary support scheme, feasibility and structural safety unload programs to ensure the structural stability safety in the construction process, and provide theoretical guidance for the development of the construction program.4) The structure of the construction process(especially with the actual working conditions significantly different lifting process) to be monitored. By analyzing the actual construction of the engineering structures, monitoring test results and actual usage, to verify the feasibility and safety of Wanda Mau water park construction program, providing guidance and suggestions for future similar projects.