Publications

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Conference Paper
Influência da distribuição transversal de armaduras longitudinais junto ao pilar na resistência ao punçoamento, Faria, Ricardo, Jesus Catarina, Marreiros Rui, and Ramos António , Encontro Nacional Betão Estrutural 2018, 7-9 Nov., LNEC, Lisboa, (2018)
Material and geometrical parameters affecting punching of reinforced concrete flat slabs with orthogonal reinforcement, Faria, Duarte, Biscaia Hugo, Lúcio Válter, and Ramos António P. , fib Symposium Prague 2011 - Concrete Engineering for Excellence and Efficiency, Prague, (2011) Abstract

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A Minimization Prodecure for the Determination of SFRC Tensile Behaviour, Nuno Gouveia, Ana Luísa Custódio, Duarte Faria António Ramos , EngOpt 2014, 4th International Conference on Engineering Optimization, Lisbon, (2014) Abstract

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On the distribution of shear forces in non-axisymmetric slab-column connections, Einpaul, J., Vollum R. L., and Ramos A. P. , High Tech Concrete: Where Technology and Engineering Meet - Proceedings of the 2017 fib Symposium, p.841-848, (2017) Abstract
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Post-earthquake strength and deformation capacity of a flat slab specimen with shear studs, Isufi, B., Lúcio V., and Ramos A. P. , Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, p.1684-1691, (2019) Abstract
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Punching of Flat Slabs under Reversed Horizontal Cyclic Loading, Ramos, António, Marreiros Rui, Almeida André, Isufi Brisid, and Inácio Micael , ACI Fall Convention 2016, Philadelphia, (2016) Abstract

Flat slab structures are a very common structural solution nowadays, due to their architectural and economic advantages. However, flat slab-column connections may be vulnerable to punching failure, especially in an event of an earthquake, with potentially high human and economic losses. This type of structural solution is adequately covered by design codes and recommendations in North America, due to a large amount of experimental research carried out. In Europe the situation is different, missing specific guidance to flat slab design under earthquake action in most European codes. The ACI 318-14 prescriptive approach to the gravity shear ratio-drift ratio relationship shows good agreement with experimental results. Following a similar approach and, based in a databank containing cyclic horizontally loaded tests of slab-column connections found in literature, proposals are made applicable to EC2 and MC2010.

Punching of High Strength Concrete Flat Slabs - Experimental Investigation, Micael Inácio, António Ramos, Válter Lúcio, and Faria Duarte , fib symposium Tel Aviv 2013, Tel Aviv, p.377–380, (2013) Abstract

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Punching of reinforced concrete slabs and experimental analysis and comparison with codes, Faria, Duarte, Biscaia Hugo, Lúcio Válter, and Ramos António , IABSE-Fib Codes in Structural Engineering – Developments and Needs for International Practice, Dubrovnik, p.1–10, (2010) Abstract

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Punching of Steel Fibre Reinforced Concrete Flat Slabs, Gouveia, Nuno, Fernandes Nelson, Faria Duarte, Ramos António, and Lúcio Válter , fib symposium Tel Aviv 2013, Tel Aviv, p.1–4, (2013) Abstract

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Punching Research at Universidade Nova de Lisboa, a Ramos, Lúcio V., Faria D., and Inácio M. , Design Of Concrete Structures and Bridges Using Eurocodes, Bratislava, (2011) Abstract

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Punçoamento de lajes fungiformes reforçadas com parafusos – efeito da área e posicionamento da ancoragem, Inácio, Micael, Ramos António, Lúcio Válter, and Faria Duarte , Encontro Nacional Betão Estrutural 2012, Porto, p.1–8, (2012) Abstract

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Punçoamento em Estruturas de Betão Armado, Ramos, A., Lúcio Faria Almeida Fernandes Inácio Mamede Dinarte Silva V. D. A. , 2º Congresso Internacional da Habitação no Espaço Lusofono, Lisbon, p.2013, (2013) Abstract

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Punçoamento em Lajes Fungiformes de Betão de Elevada Resistência – Estudo Experimental, e Micael Inácio, Duarte Faria, Válter Lúcio António Ramos , 5ªs Jornadas Portuguesas de Engenharia de Estruturas, Encontro Nacional de Betão Estrutural 2014, 9º Congresso Nacional de Sismologia e Engenharia Sísmica, Lisbon, (2014) Abstract

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Punçoamento em Lajes Fungiformes Sujeitas a Ações Cíclicas horizontais – Estudo Experimental, e André Almeida, Micael Inácio}, Válter Lúcio António Ramos , 5ªs Jornadas Portuguesas de Engenharia de Estruturas, Encontro Nacional de Betão Estrutural 2014, 9º Congresso Nacional de Sismologia e Engenharia Sísmica, Lisbon, (2014) Abstract

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Reabilitação de Pontes Históricas de Alvenaria – Um Caso de Estudo, Rodrigues, Neuza, and Ramos António , ASCP'09 – 1º Congresso de Segurança e Conservação de Pontes ASCP, Lisbon, (2009) Abstract

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Reabilitação Estrutural de Edifícios com Pós-Tensão, Lúcio, Válter, Faria Duarte, Ramos António, and Ferreira João , ReHabend 2014, Santader, (2014) Abstract

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Reabilitação Sustentável de Estruturas –Reforço de Lajes de Edifícios de Betão Armado, Faria, Duarte, Lúcio Válter, and Ramos António Pinho , CRSEEL – 2ª Conferência Construção e Reabilitação Sustentável de Edifícios no Espaço Lusófono, Lisbon, (2012) Abstract

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Reforço ao punçoamento de lajes fungiformes com lâmina complementar de betão, Fernandes, Hugo, Válter Lúcio, and Ramos António Pinho , Encontro Nacional Betão Estrutural 2016, Coimbra, p.1–10, (2016) Abstract

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Reforço de lajes com recurso a pós tensão com ancoragens por aderência, Faria, Duarte, Lúcio Válter, and Ramos António , Encontro Nacional Betão Estrutural 2012, Porto, p.1–8, (2012) Abstract

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Reforço de Lajes Fungiformes ao Punçoamento com Perfis Metálicos, Ramos, A. M. P. e Lúcio, V. , 6º Encontro Nacional sobre Estruturas Pré-esforçadas, Lisbon, (1996) Abstract

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Reforço de Lajes Fungiformes com Betão Complementar- Ligação Betão-Betão, e Hugo Fernandes, António Ramos Válter Lúcio , SILE 2015 – Seminário Internacional Sobre Ligações Estruturais, Lisbon, (2015) Abstract

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Reforço de Lajes Fungiformes – Anomalias, Causas e Soluções, Lúcio, Válter, Ramos António, and Faria Duarte , SILE2008 – Seminário Internacional sobre Ligações Estruturais, Lisbon, p.1–10, (2008) Abstract

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Rehabilitation of Historical Masonry Bridges, Rodrigues, Neuza, Ramos António, and Branco Fernando , 1st International Conference Construction Heritage in Coastal and Marine Environments – Damage, Diagnostic, Maintenance and Rehabilitation, Lisbon, p.1–10, (2008) Abstract

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Repair and Strengthening Methods of Flat Slabs for Punching, Ramos, Antonio, Lucio Valter, and Regan Paul E. , International Workshop on Punching Shear Capacity of RC Flat Slabs, Stockholm, p.125–133, (2000) Abstract

The present work reports experimental research carried out on repair and strengthening methods of flat slabs for punching. The repair and strengthening methods studied are: strengthening using transversal prestress, repair by substitution of the damaged concrete; and strengthening using steel beams as a column head, connected to the column and to the slab with epoxy resin and mechanical expansion anchors. Four experimental test slabs (AR1 to AR4) were produced and tested: two with transversal prestress, one only repaired and one strengthened with a steel column head. The execution process, its efficiency and design, are discussed.

Reparação e Reforço do Viaduto do Fonte Nova, Ramos, A. M. P. e Lúcio, V. , Encontro Nacional Betão Estrutural 2000, Porto, (2000) Abstract

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