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| Analysis and design of long-span cable-membrane structures integrated with supported structure |
| Received:September 30, 2010 Revised:May 18, 2011 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20123005 |
| KeyWord:long span cable-membrane structure supported structure form analysis long-term loading |
| Author | Institution |
| 杨庆山 |
北京交通大学 土木建筑工程学院, 北京 |
| 乔磊 |
城市建设研究院, 北京 |
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| Abstract: |
| To consider the large displacement,the nonlinear finite element equilibrium equation is established and the nonlinear stiffness matrices of spatial beam element are introduced by means of Updated Lagrange method.According to special technical problems in the form-finding of long span cable-membrane structures with supported structure,a very powerful approach is presented to avoid the larger displacement of shape controlling points by applying prestress-fixed members,shape-fixed members and adjustable members.Meanwhile,a software is developed on the basis of secondary development tools provided by AutoCAD to make the numerical model establishment more efficient.Wuhu stadium is analyzed as a study case.The form-finding and loading analysis show the presented method and software are accurate and efficient for the analysis and design. |