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环向折线形单层球面网壳的基本结构体系兼有单、双层球面网壳结构的受力特性,且节点为铰接,是一种新型的静定空间桁架结构.为改善结构受力、满足构造要求,可在基本结构体系基础上增设内圈环杆.本文对内圈环杆加强的环向折线形单层球面网壳结构进行了全跨、半跨荷载下的静力加载试验,并将试验数据与理论分析结果进行对比.分析结果表明:该结构具有良好的受力性能,试验数据与有限元分析结果之间的差异较小,理论分析正确.
The basic structure system of the circularly folded single-layer spherical reticulated dome relies on the mechanical properties of the single-layer and double-layer spherical reticulated domes, and the joints are hinged, which is a new type of static-spatial truss structure.In order to improve the structural stress, In order to meet the structural requirements, an inner ring rod can be added on the basis of the basic structural system.In this paper, the static loading test of the circularly folded single-layer spherical reticulated shell reinforced by the inner ring ring was carried out under full-span and half-span loads, The experimental data are compared with the theoretical analysis results.The analysis results show that the structure has good mechanical properties and the difference between the experimental data and the finite element analysis is small and the theoretical analysis is correct.