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http://dx.doi.org/10.5762/KAIS.2014.15.1.561

Design Consideration of Fish-bone Girder Pier using the Analysis of Torsional Behavior  

Yun, Kyung-Min (Department of Civil Engineering, Chungnam National University)
Yoon, Ki-Yong (Department of Civil Engineering, Sunmoon University)
Lee, Chin-Ok (Department of Civil Engineering, Chungnam National University)
Lim, Nam-Hyoung (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.1, 2014 , pp. 561-568 More about this Journal
Abstract
A modular fish-bone girder pier consists of one main girder system named as "Spine Girder". Therefore, this pier can be most affected by torsion as well as flexural bending. The design considerations of the fish-bone girder pier are proposed to assure the reasonable design in this study. In order to investigate the behavior characteristics, structural analysis F.E model is developed, and the verification of the developed model is performed by comparison with experimental data. From the investigation of the structural behavior, the vertical stiffener is required at the bottom of bone-beams to prevent the excessive local stress. Also, it is found that the normal stress of the flange and the shear stress of the web and flange are dominantly affected by the warping torsion and pure torsion, respectively.
Keywords
Pier; Fish-bone girder; Spine girder; Bone beam; warping; torsion;
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