Finite Element Analysis of Diamatic, Schwedler and Diamatic-Schwedler Hybrid Domes

The aim of the research - analysis of the stress-strain state of spherical lattice dome structure during mounted assembly process. The dome has a metal frame consisting of six repeating sectors with triangular grid cells. The mesh dome has five tiers in height. The study is devoted to establishing the dependence of the stress-strain state of the fully assembled frame of the lattice dome on the method mounted assembly. Methods. A computer model of the frame of the lattice dome made of steel I-beams in its design configuration has been developed. On its basis, assembly models of an incomplete frame for different stages of installation are created. For all models of the lattice dome frame, computer calculations were performed for the effect of the load from the own weight of its bars. As a result of calculations deformations, internal forces and stresses in the frame bars were determined at all stages of assembly, which were compared with those for the design configuration scheme. Results. Diagrams of deformations, moments and stresses in the bars of the dome frame at all stages of mounted installation are obtained. Comparative diagrams of installation and design stresses in the bars of the lattice dome are presented. The assessment of the installation stress state of the frame is given, and their inevitability and influence on the initial stress state of the lattice dome are noted.

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Finite Element Analysis of Diamatic, Schwedler and Diamatic-Schwedler Hybrid Domes

Cited by 3 publications

References 3 publications

Sensitivity analysis of double layer Diamatic dome space structure collapse behavior

Sensitivity analysis of double layer Diamatic dome space structure collapse behavior

Deformability of single layer diamatic space frame Domes under non-symmetrical snow load and earthquake shaking

The influence of mounted assembly process on the stress-strain state of the lattice dome frame

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