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| Rational cable location study on cable supported lattice structure of free form surface |
| Received:September 02, 2014 Revised:October 08, 2014 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201506005 |
| KeyWord:free form surface cable supported lattice structure robust configuration Hough transformation rational cable location |
| Author | Institution |
| 单艳玲 |
浙江大学 建筑工程学院, 杭州 |
| 吴慧 |
浙江财经大学 工商管理学院, 杭州 |
| 高博青 |
浙江大学 建筑工程学院, 杭州 |
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| Abstract: |
| This article gives the rational cable location of the free form surface lattice structure as follows.First of all,the robust configuration of the free form surface whose upper lattice structure was treated as a continuum was got by topology optimization which applied robust quantitative evaluation index and the improved Big Bang-Big Crunch method.Then,the directions'parameters of the cable location curves whose number was already given were extracted by detecting the robust configuration applying Hough transformation.Finally,the optimum endpoints of the cable location curves were got by calculating all nodes on the cable location curves.Examples show that,for complex free form surfaces,this method can offer rational cable locations based on the mechanical principle.Comparison with the intuitive cable arrangement shows that the cable arrangement got in this article has better mechanical properties,thus it can provide guidance for practical engineering applications. |