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Experimental Study on the Top- Lateral Bracing of U-Type Steel Box Girders Using Real Size Specimen: Torsional Stiffness  

Shim, Nak Hoon (명지대학교 토목환경공학과)
Park, Young Suk (명지대학교 토목환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.4, 2006 , pp. 447-456 More about this Journal
Abstract
In this study, a torsional test for U-type steel box girders was performed to observe the effects of the kind of panel for top lateral walateral bracings on the torsional behavior of the U-type steel girder system. For the structural tests, the test specimen with a two-thirds scale of the system actually constructed in the field was used. In the torsional test to observe the efects of top lateral bracings, the most economical arrangement of the top lateral bracing was found to be the panel width to length ratio of 1:1.5 with the inclined angle of $40^{\circ}$.
Keywords
U-type steel box girder; Torsional stifness; lateral-torsiona l buckling; lateral bracing;
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