Stability of reticulated shells considering member buckling |
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| Affiliation: | 1. Department of Civil Engineering, Tianjin University, Tianjin, China;2. Department of Architecture and Architectural Engineering, Kyoto University, Kyoto, Japan;3. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, China;4. Key Laboratory of Coast Civil Structure Safety of China Ministry of Education, Tianjin University, Tianjin, China;5. Architectural Design and Research Institute, Tianjin University, Tianjin, China;1. Institute of Engineering Mechanics, China Earthquake Administration, Xuefu Road, Harbin 150080, PR China;2. School of Civil Engineering, Harbin Institute of Technology, Nangang District, Harbin 150090, PR China |
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| Abstract: | In order to understand the influence of member buckling on the stability of reticulated shells, a key problem of how to distinguish the member buckling for reticulated shell structures was pointed out, and judgment methods of member buckling were obtained. Using a Kiewitt-8 dome as an example, the buckling characteristic and propagation rule of member buckling were studied. Meanwhile, a reticulated dome model tested was analyzed and compared by using the finite element software ANSYS. Judgment results of member buckling and the influence of member buckling on the structure were obtained. The judgment results accorded well with the test. Then taking the member buckling into consideration, the effect of material nonlinearity, initial geometrical imperfections, and member size on the stability of the members and the reticulated shell structures were investigated. The results show that the methods adopted can judge the member buckling for reticulated shell structures effectively; the member buckling and its propagation can affect the stability of the structure directly. |
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