Analysis of structural masonry buildings taking into account the construction sequence loads and soil-structure interaction

Abstract

The present study assesses conventionally used design standards, analyzing the effects caused by the construction loads, that is, a gradual increase in load and stiffness during construction, and soil-structure interaction (SSI), with soil represented by linear springs, in a structural masonry building over a support structure of reinforced concrete. The equivalent frame model, developed by Nascimento Neto, was used to simulate the support structure and the first masonry floor, and a specific three-dimensional frame model to simulate the other floors. Four analysis models were applied to assess stress distribution at the base of the walls, and the stresses and displacements of the support structure. The results show that introducing SSI and the construction loads causes relief or the possible need to reinforce elements designed in Ultimate Limit State (ULS) and Serviceability Limit State (SLS), as well as uniform settlement.

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

“…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.…”

“…Its efficiency is proven when comparing its results to those obtained by modeling with shell type finite elementsthe literature most established model. Later, the model called Equivalent Frame was ratified by Lopes; Nascimento Neto; Barros [27], proving to be useful in structural engineering analyses. Therefore, the results obtained in this study by FEM were compared with the results calculated by the theory proposed by Perrot; Rangeard; Pierre [16] and with those experimentally obtained by 3D printing the same block.…”