Open AccessOptimization Analysis Model of Self-Anchored Suspension Bridge
Author(s) -
Pengzhen Lu,
Jianting Chen,
Jingru Zhong,
Penglong Lu
Publication year - 2014
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2014/403962
Subject(s) - bridge (graph theory) , suspension (topology) , structural engineering , matlab , internal forces , displacement (psychology) , point (geometry) , nonlinear system , engineering , tension (geology) , computer science , mathematics , physics , classical mechanics , geometry , medicine , psychology , quantum mechanics , homotopy , pure mathematics , psychotherapist , moment (physics) , operating system
The hangers of self-anchored suspension bridge need to be tensioned suitably during construction. In view of this point, a simplified optimization calculation method of cable force for self-anchored suspension bridge has been developed based on optimization theories, such as minimum bending energy method, and internal force balanced method, influence matrix method. Meanwhile, combined with the weak coherence of main cable and the adjacently interaction of hanger forces, a simplified analysis method is developed using MATLAB, which is then compared with the optimization method that consider the main cable's geometric nonlinearity with software ANSYS in an actual example bridge calculation. This contrast proves the weak coherence of main cable displacement and the limitation of the adjacent cable force influence. Furthermore, a tension program that is of great reference value has been developed; some important conclusions, advices, and attention points have been summarized
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