| Summary: | 碩士 === 逢甲大學 === 交通工程與管理所 === 93 === Recently economy grows vigorously, the personal income is also raising constantly. On the other hand, quantity of automobile also increases. In order to solve the traffic worsenned day by day, building the elevated highway becomes the only one choice. Because the restrictions of the topography, the bridge must often be designed into a curved form. Therefore, it is really important to develop the different kinds of theories of curved bridge.
Due to the roadway alignment, we must adopt the curved bridge in some highway sections. For special characteristics of the curved bridge, four kinds of degree of freedom must be considered namely-longitudinal bending, vertical shear, longitudinal torsion and warping. Besides probing into horizontally through the criterion of laying of the diaphragm , will also probe into the influence on the curved Model I steel bridge of the effect of warping deeply in this research.
This reseach is based on warping theory of the thin-walled curved steel I-girder according to the finite element method. After that, element stiffness matrix will be derived which is the main body of the structural analysis.
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