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叉筒网壳是一种由若干组圆柱面网壳相贯得到的空间结构,具有独特的建筑造型与受力性能.由于其传力路径简捷,主要集中于脊线或谷线,对边界约束要求较高,一定程度限制了其应用和发展.本文提出了一种新型索承叉筒网壳结构,并给出了三种不同的分类方法,较全面地概括了索承叉筒网壳结构的形体和种类,并提出了将索承叉筒网壳作为结构单元进行组合,构建大面积结构的设想.最后,以十二边形谷线式弦支叉筒网壳为例与叉筒网壳对比,并进行了参数分析,结果表明索承叉筒网壳结构静力性能得到较大的改善.
The fork-cylinder reticulated shell is a kind of space structure which is obtained by the intersection of several cylindrical reticulated shells, and has the unique architectural shape and force-bearing performance. Because of its simple transmission force path, it mainly concentrates on the ridges or valleys, The request is higher, to a certain extent, limit its application and development.This paper presents a new type of cable bearing structure of fork-crotch grid, and gives three different classification methods, a more comprehensive summary of the cable bearing fork-crust grid structure And put forward the idea of combining the cable bearing reticulated shell as a structural unit to construct a large area structure.Finally, taking the dodecagonal trellis-shaped reticulated shredded reticulated shell as an example, The results show that the static performance of cable bearing reticulated shell is greatly improved.