Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a design method of an initial prestress state of a spoke type cable bearing grid steel structure. The design method comprises the following steps of performing calculation according to the self-weight condition borne by the spoke type cable bearing grid steel structure to obtain the magnitude of load effect borne by nodes of radial cables and ring cables; obtaining the initial pretension estimated value of each radial cable under the self-weight and the cable force distribution condition of the radial cables and the ring cables; determining the diameters of the radialcables and the ring cables according to the pretension, inputting the initial pretension obtained by comparison into a finite element structure model, and checking and adjusting the structure shape until the requirement of the building appearance is met after geometric nonlinear static calculation; and determining the pretension of the radial cables and the ring cables, and obtaining the diametersof new radial cables and new ring cables at the same time, thereby determining the initial prestress state of the structure. The design method of the initial prestress state of the spoke type cable bearing grid steel structure of the invention is suitable for the design of the spoke type cable bearing grid steel structure.
本发明涉及一种车辐式索承网格钢结构初始预应力状态的设计方法，包括：根据车辐式索承网格钢结构所受自重情况，计算得到径向索和环索节点处所受荷载作用大小；得出自重下各径向索初始预张力估算值以及径向索和环索的索力分布情况；根据预张力确定径向索和环索直径，并将对比得到的初始预张力输入到有限元结构模型当中，经几何非线性静力计算后，检查并调整结构形状直至满足建筑外形要求；确定径向索和环索的预张力，同时得到新的径向索和环索直径，从而可以确定结构的初始预应力状态；本发明适用于车辐式索承网格钢结构的设计。
The invention relates to a design method of an initial prestress state of a spoke type cable bearing grid steel structure. The design method comprises the following steps of performing calculation according to the self-weight condition borne by the spoke type cable bearing grid steel structure to obtain the magnitude of load effect borne by nodes of radial cables and ring cables; obtaining the initial pretension estimated value of each radial cable under the self-weight and the cable force distribution condition of the radial cables and the ring cables; determining the diameters of the radialcables and the ring cables according to the pretension, inputting the initial pretension obtained by comparison into a finite element structure model, and checking and adjusting the structure shape until the requirement of the building appearance is met after geometric nonlinear static calculation; and determining the pretension of the radial cables and the ring cables, and obtaining the diametersof new radial cables and new ring cables at the same time, thereby determining the initial prestress state of the structure. The design method of the initial prestress state of the spoke type cable bearing grid steel structure of the invention is suitable for the design of the spoke type cable bearing grid steel structure.
本发明涉及一种车辐式索承网格钢结构初始预应力状态的设计方法，包括：根据车辐式索承网格钢结构所受自重情况，计算得到径向索和环索节点处所受荷载作用大小；得出自重下各径向索初始预张力估算值以及径向索和环索的索力分布情况；根据预张力确定径向索和环索直径，并将对比得到的初始预张力输入到有限元结构模型当中，经几何非线性静力计算后，检查并调整结构形状直至满足建筑外形要求；确定径向索和环索的预张力，同时得到新的径向索和环索直径，从而可以确定结构的初始预应力状态；本发明适用于车辐式索承网格钢结构的设计。
Design method of initial prestress state of spoke type cable bearing grid steel structure
一种车辐式索承网格钢结构初始预应力状态的设计方法
30.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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