LUSAS finite element analysis software provides accurate and cost-effective analysis, design and load rating of steel and concrete bridges. Used widely by Consultants and DoTs for frequency, seismic, dynamic, nonlinear, buckling, fatigue, staged construction, creep and shrinkage, prestress / post-tensioning, soil-structure and rail track-structure interaction modeling and many other forms of analysis. Vehicle-load optimization facilities provides worst-case traffic loading patterns. AASHTO and other design codes supported. Extensive results viewing and reporting options. (less)