Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Suspendome structure with zero bending moment and equiaxial force and calculating method thereof
The invention discloses a suspendome structure with zero bending moment and equiaxial force and a calculating method thereof. The suspendome structure comprises an upper chord single-layer reticulated shell and a lower chord rod-cable structure, wherein the lower chord rod-cable structure comprises a vertical stay bar, a radial inhaul cable and an annular inhaul cable. The analysis procedure comprises solving ideal deformation, establishing finite element modeling, calculating node target load, calculating the height of the stay bar and the prestressing force of a steel rope and the like. Thecalculating method comprises the following steps: the action of the lower chord rod-cable structure to the upper chord single-layer reticulated shell is equivalent to external load, the equivalent external load of the node and the target load of the node of the upper chord single-layer reticulated shell under ideal deformation of zero bending moment and equiaxial force are enabled to be consistent to solve the height of the stay bar and the prestressing force of the steel rope. Compared with the prior art, the suspendome structure and the calculating method have the following benefits: the calculating efficiency is high, the course is simple, the obtained suspendome structure is controllable in displacement and internal force; a reticulated shell rod piece is suitable for standardized production and is excellent in stress performance; and the steel consumption quantity of the suspendome structure is greatly reduced compared with that of the traditional method.
本发明公开了一种零弯矩等轴力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，径向拉索和环向拉索，其分析过程包含求解理想变形，建立有限元模型、节点目标荷载计算、撑杆高度与钢索预应力大小计算等过程，本发明计算方法是将下弦索杆结构对上弦单层网壳的作用等效为外荷载，通过使节点的等效外荷载与上弦单层网壳在零弯矩等轴力的理想变形下的节点目标荷载相一致来求解撑杆高度与钢索预应力大小。与现有技术相比，本发明的有益效果在于：计算效率高，过程简单，所得弦支穹顶结构位移、内力可控，网壳杆件适合进行规格化生产，受力性能好，结构用钢量较传统方法大大减少。
Suspendome structure with zero bending moment and equiaxial force and calculating method thereof
The invention discloses a suspendome structure with zero bending moment and equiaxial force and a calculating method thereof. The suspendome structure comprises an upper chord single-layer reticulated shell and a lower chord rod-cable structure, wherein the lower chord rod-cable structure comprises a vertical stay bar, a radial inhaul cable and an annular inhaul cable. The analysis procedure comprises solving ideal deformation, establishing finite element modeling, calculating node target load, calculating the height of the stay bar and the prestressing force of a steel rope and the like. Thecalculating method comprises the following steps: the action of the lower chord rod-cable structure to the upper chord single-layer reticulated shell is equivalent to external load, the equivalent external load of the node and the target load of the node of the upper chord single-layer reticulated shell under ideal deformation of zero bending moment and equiaxial force are enabled to be consistent to solve the height of the stay bar and the prestressing force of the steel rope. Compared with the prior art, the suspendome structure and the calculating method have the following benefits: the calculating efficiency is high, the course is simple, the obtained suspendome structure is controllable in displacement and internal force; a reticulated shell rod piece is suitable for standardized production and is excellent in stress performance; and the steel consumption quantity of the suspendome structure is greatly reduced compared with that of the traditional method.
本发明公开了一种零弯矩等轴力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，径向拉索和环向拉索，其分析过程包含求解理想变形，建立有限元模型、节点目标荷载计算、撑杆高度与钢索预应力大小计算等过程，本发明计算方法是将下弦索杆结构对上弦单层网壳的作用等效为外荷载，通过使节点的等效外荷载与上弦单层网壳在零弯矩等轴力的理想变形下的节点目标荷载相一致来求解撑杆高度与钢索预应力大小。与现有技术相比，本发明的有益效果在于：计算效率高，过程简单，所得弦支穹顶结构位移、内力可控，网壳杆件适合进行规格化生产，受力性能好，结构用钢量较传统方法大大减少。
Suspendome structure with zero bending moment and equiaxial force and calculating method thereof
一种零弯矩等轴力弦支穹顶结构及其计算方法
HAN CHONGQING (Autor:in) / WANG GUOCHENG (Autor:in) / QI PENGFEI (Autor:in)
21.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04B
Allgemeine Baukonstruktionen
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GENERAL BUILDING CONSTRUCTIONS
Static behavior of Kiewitt6 suspendome
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Parameter Analysis on Stability of a Suspendome
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Advances in Application and Research of Suspendome Structures
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