Numerical Study of an Element of Structure of Building Under the Effect of a Thermomechanical Loading

摘要

The aim of this work consists of the elaboration of a model of simulation of the thermomechanical behavior of building structures. We limited our case to the study of a vertical element of structure which is the pillar. The study concerns one element of the concrete pillar (ordinary and BHP). The writing of the model was made by using the discretization of the element in voluminal elements. We consider that our pillar is developed by centered compressive force, which means that we limit our study in the elastic range. By applying the boundary condition of Direcklet, a constant temperature is applied to all the walls of the four faces of the pillar. The thermal model is developed on the basis of the application of a constant temperature on all the borders of the pillar. One period of application xas set to show the conductive effect of the heat of surface inside. The results which obtained reveal that the material after application of heat loses its behavior beyond a determined duration for each case of study.