Folding Frame Tent Structure Full-scale Static Test And Multiscale Numerical Analysis

The folding tents frame type structure has the advantage of light quality, as a newtype of tent show off fast, convenient transportation, strong applicability, etc. In order totest whether the tent structure able to withstand the role of self-respect, snow loads andwind loads to meet the design requirements of its carrying capacity, and the subsequentdesign of such structures to improve based on the need for full-scale static test.However, based solely on test methods can not be fully proven structure, components,especially the stress state of the node detail. Multiscale computational method cansimultaneously simulate structure microscopic and macroscopic force behavior, and canreach a good equilibrium between the calculation accuracy and computation time.Therefore, this article draws on the basic idea of the computer-test auxiliary modeling,launched a the folding frame tent structure full scale static test and multiscale numericalanalysis. In this paper, the contents and results are as follows:1.Completed the full-scale static test, folding frame tent structure. The results showthat the snow load than the wind loads on the structural deformation weak. Weight+snow load+90°wind load conditions, the eight wind loads, the second bay windwardside of the nodal displacements, horizontal displacement values reach76.2mm;maximum wind skewed column in the central stress28.3MPa, but still less than theyield strength of material; windward side of the rope tension value reaches510.3N.2. Multiscale analysis theory and technology to explore the characteristics ofmulti-scale model of the frame tent structure, the establishment of a frame tent structuremultiscale finite element model to verify the frame tent structure multiscale finiteelement results. The analysis shows that the multiscale finite element model established based on the substructure method and constraint equation method, it is possible torealize the connection between the different scales, analysis of the structure as a wholeand detail the force acts, the error between the calculated and measured values below10%, good agreement.3.Frame tent structure node detail stress analysis. The results show that themechanical properties of the pin on the node, and the entire structure of the mechanicalproperties play a key role.