Azevedo, N.(LABORATÓRIO NACIONAL DE ENGENHARIA CIVIL, I. P., 2025-04)
In concrete dam foundations, failure mechanisms are primarily influenced by natural rock discontinuities, the dam-foundation interface, or weaker strata. Instability can manifest beneath the dam, within the abutments, or ...
Traditional stone masonry walls are structural elements in most historic build-
ings. To preserve them and improve their ability to withstand extreme events, such as
earthquakes, it is necessary to implement effective ...
This study presents a robust contact constitutive model in the distinct element method (DEM) framework for simulating the mechanical behavior of masonry structures. The model is developed within the block-based modeling ...
Liu, B.; Sarhosis, V.; Lemos, J. V.(Elsevier, 2024)
This paper presents the development of a novel crack-based damage quantification method to assess the damage accumulation in masonry arch bridges subjected to externally applied loading. Initially, a damage index was ...
Pulatsu, B.; Wilson, R.; Lemos, J. V.; Mojsilovic. N.(MDPI, 2024)
The unreinforced masonry (URM) walls are the common load-bearing structural elements in most existing buildings, consisting of masonry units (bricks) and mortar joints. They indicate a highly nonlinear and complex behaviour ...
Lemos, J. V.; Oliveira, C.S.; Rupakhety, R.(Taylor&Francis, 2024)
Among the various important monuments impacted by the April 25, 2015 Mw7.8 Nepal earthquake, the Dharahara Tower located in Kathmandu suffered complete collapse. The collapse of the tower, a slender 60-meter-high old brick ...
Discrete element block models provide a suitable tool for the numerical analysis of masonry structures, particularly apt to represent the nonlinear response governed by shearing and separation along the structure’s joints ...
Delignière, Dóris; Pinho, F.; Azevedo, N.; Cismasiu, I.(University of Cantabria & University of Oviedo, 2024-05)
Stone masonry walls are the main structural elements of many historic buildings. Their restoration and preservation are a major concern given the increasing interest in the rehabilitation of built historical heritage and ...
Micromechanical modelling through the Discrete Element Method (DEM) is adopted for the study of bituminous materials given its capability to replicate complex microstructures behaviour. Typically, DEM models of bituminous ...
The integration of healing capsules into asphalt mixtures has demonstrated promising advancements in their intrinsic self-healing properties. However, the efficacy of this technology still requires further investigation. ...
Azevedo, N.; Cismasiu, I.; Pinho, F.(Universidade do Minho (UMinho), 2024-04)
A avaliação estrutural das paredes de alvenaria de pedra tradicional é uma tarefa complexa devido à heterogeneidade e incerteza nas propriedades dos materiais constituintes, argamassa e pedra, e à variabilidade do ...
he current first generation of Eurocodes is a suite of ten Euro-pean standards for the design of buildings and civil engineeringworks, whose implementation started in 2010. EN 1990 sets thebasis of structural design, with ...
Gomes, J. P.; Lemos, J. V.; Pereira, S.; Magalhães, F.; Cunha, A.(LNEC, APEE, GPBE, SPES, 2023-07)
A conjugação entre os modelos numéricos e os resultados observados
do comportamento das obras é uma ferramenta fundamental
no apoio ao controle de segurança de grandes obras. A barragem
do Baixo Sabor possui um sistema de ...
Gomes, J. P.; Lemos, J. V.; Pereira, S.; Magalhães, F.; Cunha, A.(Comissão das Grandes Barragens do Brasil, 2023-08)
A avaliação da resposta dinâmica das obras e o acompanhamento da evolução do seu comportamento durante as várias fases da vida é muito importante, estando inserida nas atividades do controle de segurança estrutural. A ...