六杆四面体双曲扁网壳的构形及受力性能分析OA

A new prefabricated hyperbolic flat latticed shell composed of six-bar tetrahedral units was presented.The basic structure was introduced,followed by a discussion on the configurations of the reinforced structure and the peripheral cable truss reinforced structure considering boundary conditions.Static analysis and stability analysis were carried out on the diagonal and orthogonal hyperbolic latticed shells with the peripheral support,considering fully or partially rigid connection of members.The influence of structural parameters on static and stability properties of the latticed shell was further studied to provide suggestions for the structure selection and engineering design.The results show that the six-bar tetrahedral hyperbolic latticed shell with peripheral support has good mechanical properties.The stability of the diagonal structure is better than that of the orthogonal structure,while the partially rigid connection weakens the stability of the structure.The span,height and mesh parameters of the structure have different effects on the static and stability properties of the structure.The thickness of the structure has more significant effect on the stability of the structure than the static property.