Batista, A. L.; Dias, I. M.; Serra, C.; Azevedo, N.(2026-06)
Descreve-se a atividade de investigação realizada no projeto DamSwelling-II até ao final de 2025, no
âmbito da modelação dos efeitos das expansões do betão em barragens, para apoio à gestão e
reabilitação das obras. Os ...
The condition monitoring of civil engineering structures involves systematic assessment of
their performance and integrity, which may decrease over time due to external actions and
material degradation. Therefore, the early ...
REGINATO, L.; LIMBERGER, A.; Gomes, J. P.; FIORE, P.; HEINZ, J.(COMITÊ BRASILEIRO DE BARRAGENS, 2025-08)
A instrumentação de barragens de concreto é essencial para monitorar o
comportamento estrutural e garantir a segurança a longo prazo. Este estudo
apresenta uma análise dos deslocamentos dos blocos de ...
REGINATO, L.; ZUBELDIA, L.; LIMBERGER, A.; Gomes, J. P.; UNTEN, M.(COMITÊ BRASILEIRO DE BARRAGENS, 2025-08)
Foi realizada uma análise térmica e estrutural da parede do poço do gerador da unidade
U-04 da Usina Hidrelétrica de Itaipu, com o objetivo de investigar os efeitos das
variações térmicas decorrentes das ...
Gomes, J. P.; Lamas, L.; Carvalho, E.(COMITÊ BRASILEIRO DE BARRAGENS, 2025-08)
A barragem de Cahora Bassa, localizada no rio Zambeze, em Moçambique, é uma
abóbada de dupla curvatura com uma altura máxima de 166 m. O fenómeno
expansivo, devido a reações álcali-agregado, tem vindo a ser ...
This paper outlines the key developments in the second generation of the Eurocodes, with a focus on the integration of rock engineering into the updated Eurocode 7—Geotechnical Design (EN 1997). It introduces the various ...
Design of support for rock slopes has traditionally used deterministic safety factors for verification of the structural safety. Following the introduction of limit state design concepts to modern design codes like the ...
Slope stability is a crucial concern in rock engineering which often requires balancing the costs of slope support with uncertainties in geological conditions, particularly the orientation of discontinuities. Traditional ...
Lamas, L.; Lemos, J. V.(ABMS - Associação Brasileira de Mecânica dos Solos e Engenharia Geotécnica, 2025-07)
This article presents a speculative exercise aimed at anticipating future developments in rock mechanics, both in its application areas and in research. To frame this discussion within the historical evolution of the field, ...
Lemos, J. V.; Oliveira, C.S.; Rupakhety, R.(Compdyn, 2025)
During the April 25, 2015 Nepal earthquake, the Dharahara Tower, a 60 m high historical
brick masonry structure, located in Kathmandu collapsed completely. The tower was initially
built in 1832, having suffered a previous ...
The shear strength of rock discontinuities is a critical parameter in rock engineering projects
for assessing the safety conditions of rock slopes or concrete dam foundations. It is primarily
controlled by the frictional ...
Pereira, R.; Muralha, J.; Lamas, L.(Laboratório Nacional de Engenharia Civil, 2025-04)
The Gouvães pump-storage hydroelectric scheme includes a 7800m-long underground power conduit connecting the Gouvães and the Daivões reservoirs, with a hydraulic head of 657 m and a 49 m-high underground powerhouse located ...
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 ...