Substructure Help

Live Load Generation for Skewed Bridges

For skewed bridges, the live loads are moved transversely across the width of the bridge (i.e., perpendicular to the centerline of the bridge), as described in the algorithm above. The horizontal projection (or cosine component) of the distance between bearing points measured along the centerline of the pier cap is used for calculating the live load positions and distribution (i.e., lever rule).