Abstract
This paper focuses on the research of stability capacity of shells with openings, the judgment of joint rigidity and the influence of joint rigidity on stability capacity of shell structure. The research result showed that it should give priority to use ribbed-Schwedler shells for the shells with large openings. Currently, there is no clear standard for judging joint rigidity, this paper presents a way to identify the steel joints stiffness. In the structural design of Chang'an stadium, according to the joint structure, it is proved to be hinged node by analyzing the joint stiffness. Buckling analysis results show that: single-layer shell with hinged nodes also has good stability. The result of the research has a certain value to practical engineering design.
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