Staged constructions

GFAS allows to construct complex geometries and analysis can be runned in different stages associated to different phases of construction. In fact the entire analysis procedure is developed under this phylosphy allowing the users to create multiple staged constructions in the model. In this way complex analyses such as: excavations, embankments or constructions can be conducted. Moreover during these phases the user has the possibility to change the water pressure, boundary conditions activate or deactivate several regions from the massive, anchors, liners, geogrids or to improve the accuracy of the previous computational results. Staged construction enables the activation or deactivation of weight (gravitational loads) and selected components of the model such as anchors, liners, geogrids, loads, etc. During the Staged construction analysis, the loads are increased from 0 to 1. As soon as the load parameter reaches the value of 1.0, the constructions stage is completed and the analysis of the current phase is completed, and go the the next phase of the construction. If a staged construction calculations finishes while the load factor is smaller than 1.0, the program will stop the analysis. The most likely reason for not finishing a construction stage is that a failure mechanism has occurred.