Three-dimensional modelling of wall-beam interaction in structural masonry buildings

Abstract

Wall-beam interaction (wall-beam system) is a phenomenon that requires further investigation in order to be consistently incorporated into structural building analysis. Researchers such as Wood, Rosenhaupt, Burhouse, Stafford Smith, Navaratnarajah, Davies, Riddington and Armed conducted tests on specimens to develop simplified analysis models, emphasizing the behavior of walls without openings under one span beams. The present study performed computational analysis using an specific equivalent frame model in order to study the behavior of the wall-beam system in more complex wall and beam arrangements. The examples considered the linear elastic behavior of materials and consisted of assessing stress distribution and displacements on support beams, in addition to stresses at the bottom of the walls, for panels in a real structural masonry building. Two- and three-dimensional analyses were used and the results showed the importance of three-dimensional analysis of wall interconnections. The effects of eccentricity between the vertical plane of the wall and horizontal support beam axis were also evaluated, showing the strong influence of twisting moments in support beam design.

Computational Modeling for Structural Elements Analysis Using Cement Composites in 3D Printing

“…The second stage consisted of modeling a block, using the newly validated program module, discretized with the Equivalent Frame (EF) model. Here, it is worth noting that the EF model consisted of adapting a computational model capable of simulating structural masonry walls and reinforced concrete structures in a consistent way, presented by Lopes et al [26]. It builds an equivalent frame discretizing the structure using frame type elements.…”

“…It consisted of the discretization of the first cylindrical layer by a frame 35 mm high and 60 mm in diameter, and frames above that to represent each measurement every 10 minutes, up to 90 minutes which means that they have variable heights according to the building rate, as shown in Figure 1. In the second stage of this study, a computational model was proposed for the analysis of cement composite structures in 3D printing based on the Equivalent Frame (EF) model presented by Lopes et al [26] and improved by Lopes; Nascimento Neto; Barros [27]. The object simulated in this research with the EF model was the same reproduced in the laboratory.…”