Buckling behavior of single-layer reticulated shells based on member discrete element method

被引：0

作者：

Ye J. ^{[1
]}

Zhang M. ^{[2
]}

机构：

[1] Jiangsu Key Laboratory Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou

[2] Key Laboratory of Concrete and Pre-stressed Concrete Structure of China Ministry of Education, Southeast University, Nanjing

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷 / 03期

关键词：

Buckling analysis; Displacement control method; Force control method; Member discrete element method; Numerical simulation; Single-layer reticulated shell;

D O I：

10.14006/j.jzjgxb.2019.03.005

中图分类号：

学科分类号：

摘要：

Discrete element method (DEM) has been gradually applied in structural engineering due to its capabilities of dealing with large displacement, nonlinearity and discontinuity issues. However, using the DEM for structural buckling process analysis remains to be studied. Therefore, the discrete element force control method and displacement control method were proposed on the basis of the member discrete element method in this study, and the characteristics and applicability of the above methods for whole process structural elastic buckling analysis were investigated. Meanwhile, treatment scheme for the displacement control method under different load conditions (no need for separate treatment for the force control method herein) as well as the calculational procedure of the DEM for structural elastic buckling analysis were proposed in this study. Finally, buckling process analyses of several typical examples were carried out using the program complied by Fortran language. Compared with other conventional numerical methods, the DEM which can simulate the buckling behavior of the structure without assembling the stiffness matrix and special treatments, is more advantage for handling geometric nonlinearity issue. Additionally, the effectivity of the DEM in the whole elastic buckling process analysis of single-layer reticulated shells was verified through the comparison between buckling behaviors obtained using DEM and those of the published studies. © 2019, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：50 / 57

页数：7

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