| 摘要 |
PURPOSE: A method for analyzing resistance against earthquake of an I-shaped curve girder bridge using a computation structure analysis program is provided to efficiently and reasonably make an earthquake-resistance plan by accurately predicting movements of a curved girder bridge in case that an earthquake occurs. CONSTITUTION: Elements of a curve girder include bi-moment additionally including directional power of an axis, shearing force and moment to 2 sectional axes and torsion moment. Therefore, 7 degrees of freedom are totally equipped per joint of framework. This analysis program is composed of a module capable of estimating natural frequency which controls dynamic characteristics of a structure and a module capable of estimating deflection of the structure and time-history to sectional force on the basis of direct integration method.
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