A Spiral Single-Layer Reticulated Shell Structure: Imperfection and Damage Tolerance Analysis and Stability Capacity Formulation for Conceptual Design
| Autor: | Desheng Ai, Hao Yuan, Huijuan Liu, Chunli Xu, Fukun Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Computer science
Shell (structure) characterization of bearing capacity 020101 civil engineering spiral single-layer reticulated shell 02 engineering and technology 0201 civil engineering 03 medical and health sciences Conceptual design structural design Architecture Bearing capacity structural analysis Spiral 030304 developmental biology Civil and Structural Engineering 0303 health sciences Building construction business.industry Building and Construction Structural engineering Grid Structural stability high imperfection/damage tolerance structural stability business Geometric modeling Damage tolerance TH1-9745 |
| Zdroj: | Buildings, Vol 11, Iss 280, p 280 (2021) Buildings Volume 11 Issue 7 |
| ISSN: | 2075-5309 |
| Popis: | Single-layer reticulated shell structures are widely used, but their stability performance is not ideal. Moreover, they are sensitive to structural damage and imperfections, while the existing conventional design methods of increasing the cross-section, strengthening corrosion protection, and densifying the structural grid are not economical. This study employs a modified and bionic structure—a spiral single-layer reticulated shell structure—to solve the problem. First of all, according to the current Chinese design codes, its mathematical model and geometric model are designed. Then, its damage and imperfection tolerances are analyzed and compared with a traditional single-layer reticulated shell. We then propose a universal bearing capacity formula. Our research conclusions prove that the spiral single-layer reticulated shell structure has a higher tolerance to damage and imperfections while maintaining stability. Moreover, the precise bearing capacity formula proposed will help engineers to efficiently select the structure configurations in the conceptual design phase. Therefore, the spiral single-layer reticulated shell structure is worthy of popularization and application in engineering practice. |
| Databáze: | OpenAIRE |
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