| Title |
The Elastic Rigidity Approximation Formula Proposal of a Full Composition Girder which Receives Lateral Loads |
| Keywords |
Composite Girder ; Elastic Rigidity ; Composite Effect ; Steel Girder ; Lateral Loads ; Effective Width |
| Abstract |
In this paper, when the framed structures are subjected to lateral load and sustained load, the elastic rigidity of composite girder varies with the change of moment and rotation angle. In this case, an approximate equation on the elastic rigidity of composite girder is described by the constant value of elastic rigidity. Analytical assumption is that rotation of both angle of composite girder are equal. The principal parameters are sustained load, section of steel girder, thickness of slab, column width, shape of column section (H and box), and depth of deck plate. The elastic rigidity of composite girder varies with these. Therefore, this dispersion is described by the method of least squares.
The constant value on the elastic rigidity of composite girder is calculated by using steel girder rigidity and composite effect, which has nothing to do with lateral load and sustained load. This analysis was calculated by 1512 cases with the principal parameters. We propose that the constant value on the elastic rigidity of composite girder shows rigidity ratio and composite effect relation. Where, when equivalent moment of inertia in composite girder under positive bending divided by the moment of inertia in steel girder, composite effect. And when an approximate elastic rigidity of composite girder divided by elastic rigidity of steel girder, rigidity ratio. |