This paper presents a computer vision system for dimensional quality control of concrete panel formwork. The methodology combines corner detection with photogrammetric principles to analyse overhead images of formwork ...
The construction industry increasingly uses prefabrication for the significant advantages in cost-effectiveness, production speed, and environmental sustainability. Achieving high-quality building outcomes demands rigorous ...
Recent years have been fruitful in the development of computer vision methods for a wide variety of applications. Despite the successful results achieved in the segmentation of cracks on concrete surfaces, poor
results ...
Hybrid simulation integrates numerical and experimental techniques to analyze
structural responses under static and dynamic loads. It physically tests components that are
not fully characterized while modeling the rest ...
Vibration-based methods for damage detection have been widely used, particularly those relying on ambient excitations. These methods are based on the principle that changes in a structure's physical properties, such as ...
Ramalho, M.; Matias, L.; Neres, M.; Carafa, M.; Carvalho, A. M.; Teves-Costa, P.(Copernicus Publications on behalf of the European Geosciences Union, 2022-01)
Probabilistic seismic hazard assessment (PSHA), despite its deep criticism, is still the most common tool used to decide on the acceptable seismic risk and corresponding mitigation measures. We propose two consistency tests ...
This paper summarises the project ERIES-ALL4wALL, “Smart ALLoys for WALLs: towards durable structures with long service lives and minimal seismic residual displacements”, which was funded through the Engineering Research ...
In order to promote an effective approach to the prevention of and preparedness for disasters, the countries participating in the Union Civil Protection Mechanism (UCPM) shall develop risk assessments, risk management ...
Shaghayegh, K.; Bernardo, V.; Hussaini, S.; Caicedo, D.; Carvalho, A. M.; Lourenço, P.(Comisssão Organizadora, 2023-06)
Earthquakes are the major causes of damage and loss to the built environment, including cultural heritages, monumental buildings, and historical centres. Many regions with predominant active tectonic plates and high ...
A maioria dos colapsos de pontes ocorre devido à combinação simultânea de vários fatores, muitas vezes durante ou após um evento natural extremo, que tem a particularidade de explorar vulnerabilidades estruturais escondidas. ...
Folgado Santos, C.; Dias, I. M.; Oliveira Santos, L.; Batista, A. L.(Grupo Português de Betão Estrutural, 2024-11)
Apresenta-se a atualização e o melhoramento da modelação dos efeitos das expansões do betão num pilar da ponte da Foz do rio Dão, integrada no IP3, sobre a albufeira da barragem da Aguieira, ponte que foi substituída em ...
A Monitorização da Integridade Estrutural (MIE) permite avaliar o desempenho das estruturas em
serviço com base na medição de grandezas relevantes através de sistemas sensoriais instalados nas
estruturas, recorrendo a ...
Oliveira, D.; Romanazzi, A.; Silva, R. A.; Candeias, P.; Carvalho, A. M.; Campos Costa, A.; Lourenço, P.(Comisssão Organizadora, 2021-06)
A técnica da construção em taipa está difundida mundialmente, representando a identidade local de muitas culturas. De forma sucinta, esta técnica consiste na compactação de terra húmida no interior de uma cofragem para ...
Romanazzi, A.; Oliveira, D.; Silva, R. A.; Candeias, P.; Campos Costa, A.; Carvalho, A. M.(Comisssão Organizadora, 2021-06)
Rammed earth technique is spread worldwide, representing the local identity of many cultures for which they must be preserved. Yet, rammed earth heritage is also well known for its high seismic vulnerability and despite ...
Bernardo, V.; Campos Costa, A.; Candeias, P.; Carvalho, A. M.; Costa, A.(Taylor & Francis, 2024-07)
The metropolitan area of Lisbon is the region of Portugal with the highest seismic risk, given the coexistence of moderate-to-high hazard with high
population density and building stock exposure. The present work addresses ...
Shaghayegh, K.; Mohammadi.A.; Salahuddin, U.; Carvalho, A. M.; Lourenço, P.(Wiley, 2023-11)
Azores Islands are seismically active due to the tectonic structure of the region. Since the 15th century, they have been periodically shaken by approximately 33 moderate to strong earthquakes, with the most recent one in ...
Coelho, T.; Xu, Min; Oliveira Santos, L.(Faculdade de Engenharia da Universidade do Porto, 2024-11-13)
Com o avanço tecnológico, a monitorização estrutural passou a utilizar uma variedade significativa de
sensores, resultando num grande volume de dados coletados em tempo real, o que exige um tratamento
adequado para a ...
Silveira, A. P. C. da; Baptista, A. M.; Azevedo, F.S.(Imprimerie Louis Jean BP 87 05003 Gap, 1991)
Le propos de cette communication est la présentation des critères de conception des témoins sonores, de façon qu'ils puissent mesurer correctement les déformations et permettent d'évaluer indirectement les contraintes du ...
Cintura, E.; Lina Nunes; Molari, L.; Bettuzzi, M.; Morigi, M.; Brancaccio, R.; Faria, P.(MDPI, 2024-01-19)
The internal structures and the hygroscopicity of bio-based boards consisting of giant
reed (Arundo donax L.) and hazelnut shells as bio-aggregates, and a sodium silicate solution as
the adhesive, were investigated. The ...
The search for innovative and sustainable solutions to improve the energy efficiency
of the construction industry has been a hot topic for researchers due to the tremendous impact
of insulator materials in the thermal ...