Straight and curved steel I-girder bridges - Computational Analysis and Design of Bridge Structures - page 231

Figure 7.38 Zoom-in view of the global model.
Local model . To study the behavior of the bridge, the entire superstruc-
ture was first analyzed by a large, coarse finite element model. The global
model contains only the main components of the bridge and is mainly for
modal analysis, displacement output of the whole bridge, critical fatigue
location determination, and so on. However, to investigate the stresses or
strains of a certain area or a certain joint, it is necessary to employ a series
Figure 7.39 Local model at midspan girder 3.