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http://dx.doi.org/10.12989/scs.2015.19.2.405

Arch-to-beam rigidity analysis for V-shaped rigid frame composite arch bridges  

Gou, Hongye (Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University)
Pu, Qianhui (Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University)
Zhou, Yang (Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University)
Hong, Yu (Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University)
Publication Information
Steel and Composite Structures / v.19, no.2, 2015 , pp. 405-416 More about this Journal
Abstract
We proposed the concept of nominal rigidity of a long-span V-shaped rigid frame composite arch bridge, analyzed the effects of structural parameters on nominal rigidity, and derived a theoretical nominal rigidity equation. In addition, we discussed the selection of the arch-to-beam rigidity ratio and its effect on the distribution of internal forces, and analyzed the influence of the ratio on the internal forces. We determined the delimitation value between rigid arch-flexible beam and flexible arch-rigid beam. We summarized the nominal rigidity and arch to beam rigidity ratios of existing bridges. The results show that (1) rigid arch-flexible beam and flexible arch-rigid beam can be defined by the arch-to-beam rigidity ratio; (2) nominal rigidities have no obvious differences among the continuous rigid frame composite arch bridge, V-shaped rigid frame bridge, and arch bridge, which shows that nominal rigidity can reflect the global stiffness of a structure.
Keywords
bridge engineering; V-shaped rigid frame composite arch bridge; nominal rigidity; structural parameters; arch-to-beam rigidity ratio;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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