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Determination of an Optimum Initial Cable Tension Force for Cable-Stayed Bridges using the Least Square Method  

Park, Yong Myung (부산대학교 토목공학과)
Cho, Hyun Jun (부산대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.17, no.6, 2005 , pp. 727-736 More about this Journal
Abstract
This study presents a method of determining the optimum cable tension forces for the proper initial equilibrium state of a cable-stayed bridge using the least square method. The proposed method minimizes the errors, i.e., the differences, such as the deflection and the moments of the girder and the tower, between the target values from a continuous beam by considering the cable anchor point as supports of the girder and the responses obtained from the analysis of the entire cable-stayed bridge system. Especially, the proposed method can selectively control the adjustment of the tower moment, the girder moment, and the deflections by introducing the weighing matrix. Through numerical analysis and comparisons with existing studies, the usefulness and validity of the proposed method was verified.
Keywords
cable-stayed bridge; initial equilibrium state; cable tension force; the least square method; weighting matrix;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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