ABSTRACT
However, in the case of bridges, the modes may be of horizontal or vertical directionality. The set of modes shown in Figs 4.10 to 4.14 are repeated in vertical and horizontal sets. Once again, torsion of the deck is possible, and the shapes shown in Figs 4.10 to 4.14 may also be used to represent the torsional mode set. It is merely necessary to consider that ljJ represents an angle of twist at locations along the deck.
