61 documents found, page 1 of 7
A new sustainable system for piped water cooling of mass concrete structures
Kheradmand, Mohammad; Vicente, Romeu; Azenha, Miguel; Aguiar, J. L. Barroso deIn mass concrete casting applications/structures, the heat evolved during the hydration process at early ages may not dissipate appropriately due to the large size of the pours and the low thermal conductivity of concrete. Embedded pipe cooling systems for circulating water are frequently used for heat removal (control the temperature rise) from the interior of the concrete mass. However, in current practice an...
Parametric and machine learning-based analysis of the seismic vulnerability of ...
Eudave, Rafael Ramirez; Ferreira, Tiago Miguel; Vicente, Romeu; Lourenço, Paulo B.; Pena, FernandoIn September 2017, two strong earthquakes hit the central region of Mexico, producing substantial damage to the historical buildings. A retroactive analysis for assessing the pre-event seismic vulnerability of these constructions allowed for testing the suitability of an existing parameter-based approach based on material and geometrical features. More than 160 adobe buildings in four municipalities of the Stat...
Implementing open-source information systems for assessing and managing the sei...
Ramírez Eudave, Rafael; Rodrigues, Daniel Souto; Ferreira, Tiago Miguel; Vicente, RomeuThe characterisation of the seismic vulnerability of historical constructions represents a complex problem in which the typological variability, the difficulty of performing reliable large-scale assessments and dealing with a large database all play a role. Nevertheless, reducing the uncertainty regarding the structural vulnerability of the existing building stock (mostly for small and/or isolated human settlem...
Use of post-earthquake damage data to calibrate, validate and compare two seism...
Ortega, Javier; Vasconcelos, Graça; Rodrigues, Hugo; Ferreira, Tiago Miguel; Vicente, Romeu; Correia, MarianaThe paper presents and discusses the application of two large scale seismic vulnerability assessment methods on the island of Faial in Azores (Portugal). The two methods are specifically conceived to assess the seismic vulnerability of vernacular architecture. The first method follows a classical seismic vulnerability index approach and is referred as SVIVA (Seismic Vulnerability Index for Vernacular Architectu...
Development of an eco-design tool for a circular approach to building renovatio...
Bourgeois, Inês; Queirós, Alexandra; Oliveira, Joaquim; Rodrigues, Hugo; Vicente, Romeu; Ferreira, Victor M.Considering the construction sector’s impact on the environment, it is necessary amongst other measures to change the way in which new construction or renovation projects of buildings are designed and how solutions are proposed and integrated. Nowadays, an effort is being made by designers to implement more sustainable and circular design in buildings, but because of the lack of tools that can provide designers...
Development of retrofitting solutions: Remedial wall ties for masonry enclosure...
Rebelo, Filipe; Figueiredo, António; Correia Lopes, Gonçalo; Ferreira, Tiago Miguel; Vicente, RomeuThe external envelope walls of a significant percentage of the residential building stock in Southern European countries is commonly constituted by infill masonry walls. However, thousands of square meters of this masonry wall typology presents severe issues of cracking and instability, related to the incorrect and deficient support conditions of the outer brick panel of the double-leaf wall solution. In this w...
Seismic vulnerability assessment of Portuguese adobe buildings
Momin, Samar; Lovon, Holger; Silva, Vitor; Ferreira, Tiago Miguel; Vicente, RomeuAdobe construction represents 5.3% of the total Portuguese building stock according to the latest National Housing Census. The distribution of these adobe buildings is scattered across the country, with higher density in the central region and in Algarve in the south, where the seismic hazard is highest. A large proportion of these buildings are still in use for residential and commercial purposes and are of hi...
Performance requirements, challenges and existing solutions of PCM in massive c...
Kheradmand, Mohammad; Vicente, Romeu; Azenha, Miguel; Aguiar, J. L. Barroso deThe development of new solutions and techniques targeted towards better control of the temperature rise in massive concrete at early ages aiming at the reduction of thermal cracking risk, is of paramount importance, namely in respect to durability. To mitigate this issue, one of the most researched solutions that has attracted most interest is the incorporation of Phase Change Materials (PCMs) into massive conc...
Numerical simulations of derived URM-RC buildings: assessment of strengthening ...
Correia Lopes, Gonçalo; Mendes, N.; Vicente, Romeu; Ferreira, Tiago Miguel; Azenha, MiguelThe use of reinforced concrete (RC) in retrofitting interventions on existing unreinforced masonry (URM) buildings has been spreading all over the world since the beginning of the twentieth century. However, many of these mixed URM–RC buildings have revealed to be particularly vulnerable to seismic action, and their inherent complex structural behaviour is still understudied. In fact, the interaction effects fr...
Discussão do desempenho da envoltória de uma passive house adaptada à zona bioc...
Dalbem, Renata; Cunha, Eduardo Grala da; Vicente, Romeu; Figueiredo, António José; Silva, Antônio César Silveira Baptista daSubmitted by Simone Maisonave (simonemaisonave@hotmail.com) on 2021-04-16T16:52:10Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Discussao_do_desempenho_da_envoltoria_de_uma_passive_house_adaptada_a_zona_bioclimatica_2_em_acordo_com_o_RTQ_R.pdf: 2775933 bytes, checksum: ffc6d90e9df5a8026b4e552e7d91cfcf (MD5); Approved for entry into archive by Aline Batista (alineh...