The Design And Simulation Analysis Of Large Temporary Stage Structure

With the rapid development of national culture and its science and technology intoday s society, people s demands for a rich spiritual and cultural life is alsoincreasingly growing. Accompanying outdoor performances makeshift platformincreased, public temporary stage safety risk have continued to be exposed withfrequent performance accidents, especially large scale temporary stage safety issue havebeen the focus of attention. In view of behindhand status of the temporary structurestechnological backwardness, lack of industry standards, form a single, heavy, varioussecurity coordination and defense mechanism unbalanced development, the papercarries out explorations and researches related to the key technologies under theprogram Large Temporary Safety Performance Platform Construction and Applicationexecuted by the National Science and Technology Supporting Research.Firstly, by making reference of relevant makeshift performances stage and interiorpermanent theatre design standards to make a simple design and analysis on the basicbuilding function of temporary stage.Secondly, aiming at existing temporary stage style, which is consisting of upperstage structure employing spatial steel pipe latticed truss structure and under stagestructure adopting assembled truss structure, this paper carries out some researches.Making use of multi-body human characteristic motion experiment to determine designvalue of human jumping load. The assembled truss are investigated by computationalsimulation and analysis including the form of diagonal arrangement, vibrationcharacteristics and crowd jumping dynamic load response. The spatial latticed trussstructures are also investigated, covering linear and non-linear buckling analysis, byfinite element software ABAQUS and verify the necessity of non-linear analysis. Andthen, taking the stability capacity as an indicator to determine the notable affect factorson stability through orthogonal experiment and obtain the reasonable range of thenotable parameters.Thirdly, Python scripting language is established to achieve temporary stage fastparametric modeling, analysis and post-processing, which is utilizing the open-sourceABAQUS and plug-in design program of secondary development and on the premise ofparameter settings for the structural dimensions, material properties, load values,analyze items and post-processing results. And this is do for technical support for thedevelopment of the temporary stage intelligentized design software.Finally, in order to meet the technical requirements of modern large temporarystage, tensile structure is adopted as the temporary stage upper structure and verified thesuperiority of mechanics and applicability for temporary arena after the determinacy of location and shape which is solved by nonlinear finite element form-finding programwritten by MATLAB.