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Experimental Study and Numerical Simulation of the Progressive Collapse Resistance of Single-Layer Latticed Domes
| 题名： | Experimental Study and Numerical Simulation of the Progressive Collapse Resistance of Single-Layer Latticed Domes |
| 其他题名： | ABAQUS[Computer software].Dassault Systemes,Providence,RI. |
| 正文语种： | 英文 |
| 作者： | Ying Xu |
| 关键词： | Single-layer latticed dome;Experimental study;Numerical simulation;Sensitivity analysis;Progressive collapse;Failure mechanism;Structural safety and reliability |
| 摘要： | Progressive collapse accidents of single-layer latticed domes seriously threaten public safety and social security. Structural integrity and progressive collapse–resisting capacity are gradually becoming essential requirements in structural design. The Kiewitt Lamella and geodesic single-layer latticed domes are typical of domes used in large-scale public facilities. In this paper, an experimental study and a numerical simulation were carried out to understand the mechanism of internal force redistribution in the progressive collapse of domes. Three effective methods to evaluate progressive collapse resistance and critical displacement were determined and verified. The results indicate that both the Kiewitt Lamella dome and the geodesic dome exhibit undergo snap-through collapse. The collapse of the Kiewitt Lamella dome was induced by unexpected local instability around the initial failure members, whereas that of the geodesic dome was the result of a rapid change in nodal displacement and a sharp decline in structural stiffness. |
| 出版年： | 2017 |
| 论文唯一标识： | P-26Y2017V143N09045 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001868 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 143 |
| 期： | 09 |
| 页码： | 556-570 |
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