Integrated User-friendly Environment For A 2-D Nonlinear Analysis Program


Department of Civil Engineering, University of Aveiro, Aveiro, Portugal


Nonlinear analyses allow simulating, in a more realistic way, the behaviour of structures
subjected to several types of complex loading conditions such as earthquakes. However, it is
recognized that these analyses normally generate a considerable amount of results, a factor
that difficult its interpretation. Over the last years, considerable progresses have been made in
structural nonlinear behaviour modelling, associated to the fast growing development of
numerical algorithms and computer capacities. Therefore, a number of computational
analysis tools have been developed to meet the analysis requirements from the behaviour
viewpoint. However, a similar growth in the development of graphical results visualization
tools has not been witnessed and the generalized use of such analysis programs is thus made
difficult. To face this, a graphical processor called VISUALANL was developed for an
existing nonlinear analysis program for plane frame structures. To observe the potentialities
of such tool, an application example is presented illustrating both previously referred stages.