Study on stability of cable supported single-layer two-way grid cylindrical shell

被引：0
|
作者：
Zhang Z. [1 ,2 ]
Liu L. [2 ]
Zhi X. [2 ]
Fan F. [2 ]
机构：
[1] College of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin
[2] School of Civil Engineering, Harbin Institute of Technology, Harbin
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2021年 / 42卷 / 01期
关键词：
Cable; Mechanical property; Single-layer cylindrical shell; Stability; Static experiment; Two-way grid;
D O I：
10.14006/j.jzjgxb.2020.0080
中图分类号：
学科分类号：
摘要：
Two-way grid single-layer cylindrical reticulated shells are not only beautiful in appearance and regular in arrangement of components, but also light-weighted and efficient in lighting. However, as the span of reticulated shells becomes larger and larger, the problem of overall stability becomes more prominent, which restricts the application of such reticulated shell structures in practical projects. In this paper, a new type of cable stiffened two-way grid single-layer cylindrical shell was proposed, where diagonal cables were arranged inside the two-way grid surface to improve the in-plane stiffness of the structure, and the out-of-plane cables were arranged to improve the out-of-plane stiffness of the structure. Firstly, the effect of cable arrangement was verified by elasto-plastic stability analysis of reticulated shells with different spans and the rationality and practicability of this kind of reticulated shell were demonstrated by considering the effect of various parameters on the structural stability. Secondly, the stability of the cable supported cylindrical reticulated shell structure was investigated by theoretical and experimental studies, and the rationality of cable arrangement was demonstrated. The results show that the stress of reticulated shell structure is more reasonably distributed and its bearing capacity is greatly improved after adopting the staggered arrangement of struts and cables.This kind of structure is not sensitive to defects,but the length of strut has great effect on the bearing capacity of the structure, so the best length of the strut should be ensured in practical engineering. © 2021, Editorial Office of Journal of Building Structures. All right reserved.
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页码：39 / 47
页数：8
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