弦支环向折线形单层球面网壳结构的模型试验研究

发布时间：2018-04-30 16:02

本文选题：环向折线形 + 弦支网壳　；参考：《土木工程学报》2015年S1期

【摘要】：环向折线形单层球面网壳是单向折线形平板网架在回转曲面结构构型中的拓展,兼有双层网架和单层网壳结构的受力特性且建筑造型优美,可用于中小跨度的开大、小孔洞的屋盖和悬挑结构。为改善环向折线形单层球面网壳的受力特性,本文提出了弦支环向折线形单层球面网壳结构,从而使得结构可以跨越更大的跨度。为研究弦支环向折线形单层球面网壳结构的受力特性,本文设计、加工了一跨度为6m的试验模型,对该试验模型展开了施工张拉分析和多级静力加载试验,并与环向折线形单层网壳结构模型试验结果进行了对比分析。研究结果表明: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。
[Abstract]:The annular zigzag single-layer spherical reticulated shell is an extension of unidirectional folded flat plate latticed frame in the structure configuration of curved surface. It can be used for the opening of medium and small span with the combination of double-layer grid frame and single-layer reticulated shell structure. The roof and cantilever structure of a small hole. In order to improve the mechanical properties of single-layer spherical reticulated shell with toroidal zigzag, this paper presents a new single-layer reticulated shell structure with chord branch and toroidal zigzag, so that the structure can span a larger span. In order to study the mechanical characteristics of the single-layer spherical reticulated shell with toroidal zigzag of chord support, a test model with a span of 6 m is designed and machined, and the construction tension analysis and multistage static loading test are carried out for the test model. The experimental results are compared with the model test results of the annular zigzag single layer latticed shell. The results show that the structure has good mechanical performance, the difference between the test data and the finite element analysis results is small, and the theoretical analysis is correct.
【作者单位】：浙江大学建筑设计研究院有限公司;浙江大学空间结构研究中心;
【基金】：国家自然科学基金重点项目(56038050) 杭州市首批十大产业企业技术创新团队科研项目浙江大学建筑设计研究院有限公司院士工作站科研项目
【分类号】：TU399

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