Simulación de una cubierta plana autoportante y su conexión con las vigas laterales mediante la aplicación de elementos finitos

Abstract

A study of self-supporting flat roofs and their connection with the lateral beams is presented, using a cross section of IMAP-800 type sheeting with the help of the simulation software based on finite elements ANSYS Workbench 19.0, which allowed to demonstrate the real behavior of the complete roof, under the application of load states for ultimate strength and service, thus verifying the design variables found in catalogs, such as thickness, slope, maximum span; and likewise, the type of connection used to transmit the forces to the lateral beam. This involves establishing a study of spans of 10, 20, 30 and 40 meters. For each of the models analyzed, the maximum stresses and deformations presented a lateral trend line with values within the permissible range, with maximum stresses concentrated in the fixing brackets, mainly in their perforations and their welding connection. When establishing new parameters to save the corresponding spans, it showed an increase in the deck weight of about 5%.