Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Suspended dome structure suitable for square boundary and calculation method thereof
The invention discloses a suspended dome structure suitable for a square boundary and a calculation method thereof. The suspended dome structure comprises an upper chord single-layer latticed shell and a lower chord cable rod structure, wherein the lower chord cable rod structure comprises a vertical supporting rod, a radial stay cable and an annular stay cable; an analysis process comprises the following steps of: solving a vertical load requirement and angles of the annular stay cable and the radial stay cable; generating a grid according to the angles of the annular stay cable and the radial stay cable; iterating a grid form; and calculating an annular stay cable pre-stress and the like. According to the suspended dome structure disclosed by the invention, on the basis of an initial form of a dome, an ideal vertical supporting rod supporting force is derived through an upper load, so that a new cable rod form and a corresponding upper chord grid form are derived; and the process isrepeatedly solved on the new form and the process is iterated for a plurality of times to obtain an ideal dome form. The suspended dome structure has the advantages that the blank that the suspended dome is adopted by the square boundary is filled and an explicit solution for generating an annular stay cable equal-internal-force suspended dome through correcting the angle of the annular stay cableis provided; and the stress performance of the suspended dome structure is ideal.
本发明公开了一种适用于方形边界的弦支穹顶结构及其计算方法，弦支穹顶结构包含上弦单层网壳与下弦索杆结构，下弦索杆结构包含竖向撑杆、径向斜拉索和环向拉索，其分析过程包含求解竖向荷载需求、环向拉索与径向斜拉索的角度、根据环向拉索和径向斜拉索角度生成网格、迭代网格形态、计算环向拉索预应力等过程，本发明在穹顶初始形态的基础上，由上部荷载推导出理想的竖向撑杆支承力，进而推导出新的索杆形态和对应的上弦网格形态，再对新形态重复求解以上过程，迭代数次即可得到理想的穹顶形态。优点是：填补了方形边界采用弦支穹顶的空白，提出一种通过修正环向拉索角度生成环向拉索等内力弦支穹顶的显式解法，所得弦支穹顶结构受力性能理想。
Suspended dome structure suitable for square boundary and calculation method thereof
The invention discloses a suspended dome structure suitable for a square boundary and a calculation method thereof. The suspended dome structure comprises an upper chord single-layer latticed shell and a lower chord cable rod structure, wherein the lower chord cable rod structure comprises a vertical supporting rod, a radial stay cable and an annular stay cable; an analysis process comprises the following steps of: solving a vertical load requirement and angles of the annular stay cable and the radial stay cable; generating a grid according to the angles of the annular stay cable and the radial stay cable; iterating a grid form; and calculating an annular stay cable pre-stress and the like. According to the suspended dome structure disclosed by the invention, on the basis of an initial form of a dome, an ideal vertical supporting rod supporting force is derived through an upper load, so that a new cable rod form and a corresponding upper chord grid form are derived; and the process isrepeatedly solved on the new form and the process is iterated for a plurality of times to obtain an ideal dome form. The suspended dome structure has the advantages that the blank that the suspended dome is adopted by the square boundary is filled and an explicit solution for generating an annular stay cable equal-internal-force suspended dome through correcting the angle of the annular stay cableis provided; and the stress performance of the suspended dome structure is ideal.
本发明公开了一种适用于方形边界的弦支穹顶结构及其计算方法，弦支穹顶结构包含上弦单层网壳与下弦索杆结构，下弦索杆结构包含竖向撑杆、径向斜拉索和环向拉索，其分析过程包含求解竖向荷载需求、环向拉索与径向斜拉索的角度、根据环向拉索和径向斜拉索角度生成网格、迭代网格形态、计算环向拉索预应力等过程，本发明在穹顶初始形态的基础上，由上部荷载推导出理想的竖向撑杆支承力，进而推导出新的索杆形态和对应的上弦网格形态，再对新形态重复求解以上过程，迭代数次即可得到理想的穹顶形态。优点是：填补了方形边界采用弦支穹顶的空白，提出一种通过修正环向拉索角度生成环向拉索等内力弦支穹顶的显式解法，所得弦支穹顶结构受力性能理想。
Suspended dome structure suitable for square boundary and calculation method thereof
一种适用于方形边界的弦支穹顶结构及其计算方法
HAN CHONGQING (Autor:in) / WANG GUOCHENG (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
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