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João Saraiva Esteves Pacheco de Almeida

Cette personne a quitté l’EPFL

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Publications associées (42)

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Tests on Thin Reinforced Concrete Walls Subjected to In-plane and Out-of-plane Cyclic Loading

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

The present data paper describes an experimental campaign on five thin T-shaped reinforced concrete walls, including: details on the test units, materials, test setup, loading protocol, instrumentation, main features of each unit's response, organization o ...

2017

Cyclic tensile-compressive tests on thin concrete boundary elements with a single layer of reinforcement prone to out-of-plane instability

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

The growing need for residential housing in Latin American countries has led to the construction of reinforced concrete buildings with wall thicknesses as low as 8–10 cm. Such walls have typically only a single layer of vertical rebars and are therefore pa ...

2018

Stability of thin reinforced concrete walls under cyclic loads: State-of-the-art and new experimental findings

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

Damage to structural walls in the recent earthquakes in Chile (2010) and New Zealand (2011) demonstrated that modern reinforced concrete (RC) walls may not achieve the expected ductile response but could possibly be triggered by out-of-plane displacements ...

2016

Modelação numérica do escorregamento de armaduras em elementos de betão armado / Numerical modelling of bond-slip effects in reinforced concrete elements

João Saraiva Esteves Pacheco de Almeida

Reinforced concrete (RC) framed structures subjected to seismic loading often show localized deformations at the extremities of the members associated with the slippage of reinforcing bars along their anchorage length. Despite this phenomenon being respons ...

2016

Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign

Olivier Sauter, Jonathan Graves, Ambrogio Fasoli, Stefano Coda, Basil Duval, Henri Weisen, Patrick Blanchard, Richard Pitts, Yves Martin, Javier García Hernández, Duccio Testa, Robin Humphry-Baker, Sun Hee Kim, Alessandro Pau, Davide Galassi, Jonathan Marc Philippe Faustin, Liang Yao, Yann Camenen, Bruno Emanuel Ferreira De Sousa Correia, Mikhail Maslov, Marco Wischmeier, Dalziel Joseph Wilson, Daniel Scott Alessi, Arnout Lodewijk M Beckers, Jonnathan Cesar Hidalgo Acosta, Antonio José Pereira de Figueiredo, Partha Dutta, Vlad Trifa, Federico Nespoli, Hamish William Patten, Fernando Cortes Salazar, Samuel Lanthaler, David Pfefferlé, João Saraiva Esteves Pacheco de Almeida, Albano António De Abreu E Presa De Castro E Sousa, Alexis Gérald Page, Janir Nuno Ramos Antunes Da Cruz, Nicola Vianello, Cristian Sommariva, Andrea Brett Gasser, Tao Xu, Thomas Willem Jan de Geus, Paulo Giovane Paschoali Pereira Puglia, Mario Joe Lehmann, Jose Vicente Sanchez Mut, Joao André Gomes de Sá e Sousa, Semin Kwak, Jose Felix Vega Stavro, Lorenzo Anton-Louis Talà, Pamela Solange Valdés Undurraga, Wei Zhang, Lenke Horváth, Matthew Brown, Luca Carraro, Andrea Salmi, Raffaele Tito D'Agnolo, Hugo Antoine Georges Arnichand, Wei Tang, Luis David Figueiredo Mascarenhas Moreira Pedrosa, Philippe Janson, Lyne Moser, Stéphanie Prior, Michael Oliver Reinke, Stefano Mattei, Daniel Molina Romero, Riccardo Vannucci, Candice Megan T Young, Magalie Diane Bassan, Petre Alexandru Arion, Justin Robert Young, Isabel Marie-Rose Pilar Casado Harrington, Gil Corbaz, Hugo Augusto Penedones Fernandes, Philippe Jean Buchs, Alejandro Santa Cruz Paz

Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015-2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and beta-ray induced x-ray spectrometry, and t ...

Elsevier2019

Experimental investigation on the behaviour of lap splices under uniaxial cyclic loading

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

Splicing of longitudinal reinforcement in the plastic hinge region of reinforced concrete (RC) members was common practice in buildings and bridges before the introduction of capacity design principles. Experimental and field observations showed that the p ...

2018

Experimental tests on the out-of-plane response of RC columns subjected to cyclic tensile-compressive loading

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

Over the last few years the increasing demand of housing for low income population in Colombia and several neighboring countries, associated to the significant increase of cost of land, has prompted construction companies to build medium to high rise reinf ...

2017

A fibre-based frame element with explicit consideration of bond-slip effects

João Saraiva Esteves Pacheco de Almeida

Reinforced concrete (RC) frames subjected to seismic loading often depict localized member-end deformations due to strain penetration effects between adjacent members, such as beam-column and column-footing joints. Past experimental programs indicate that ...

2017

Instability of Thin Concrete Walls with a Single Layer of Reinforcement under Cyclic Loading: Numerical Simulation and Improved Equivalent Boundary Element Model for Assessment

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

Thin reinforced concrete walls may fail due to out-of-plane instability when subjected to seismic loading. While previous numerical studies on wall instability have focused on the behaviour of members with two layers of vertical reinforcement, this work ad ...

TAYLOR & FRANCIS LTD2022

Modelling approaches for inelastic behaviour of RC walls: Multi-level assessment and dependability of results

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

The severe damage and collapse of many reinforced concrete (RC) wall buildings in the recent earthquakes of Chile (2010) and New Zealand (2011) have shown that RC walls did not perform as well as required by the modern codes of both countries. It seems the ...

Springer2016

Elemento de Viga Baseado em Formulação de Rigidez Enriquecido com Funções de Forma Adaptativas para Garantir Equilíbrio Axial

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

In the framework of Performance Based Earthquake Engineering (PBEE), assessing the inelastic behaviour of structures both at the global (force-displacement) and local (stress-strain) level is of priority importance. This goal is typically achieved by advan ...

2016

Überprüfung bezüglich Erdbeben von Holzbalkendecken in Bestandesbauten

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida

Viele bestehende Mauerwerksgebäude in der Schweiz weisen Holzbalkendecken als Deckenkonstruktion auf. Dies triff vor allem für Gebäude zu, die bis in die erste Hälfte des 20. Jahrhundert erbaut wurden. Holzbalkendecken sind in ihrer Ebene sehr flexibel und ...

2020

Ensayos cuasi-estáticos cíclicos de muros delgados de concreto reforzado en edificios colombianos

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida

The use of thin reinforced concrete walls (thickness of 8 to 12 cm) in Latin America has become a popular building construction practice in the last two decades. Several existing studies indicate that the inelastic deformation capacity could be limited and ...

2017

Axially Equilibrated Displacement-based Beam Element: Implementation in OpenSees and Application to Dynamic Analysis of Structures

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

Experimental tests on the inelastic behavior of RC bridge piers have shown that, due to tension shift effects, the curvature profile above the base section of the structural member differs from the one that would develop according to a force-based or a cla ...

2017

Experimental investigation on the deformation capacity of lap splices under cyclic loading

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

Correct detailing and positioning of lap splices is essential in order to prevent premature failure of reinforced concrete structural members. Especially before the introduction of capacity design guidelines, lap splices were often placed in member regions ...

2019

Force-based finite element for modelling the cyclic behaviour of unreinforced masonry piers

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Francesco Vanin

2017

New experimental findings on the stability of thin reinforced concrete walls

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

Damage to structural walls in the recent earthquakes in Chile (2010) and New Zealand (2011) demonstrated that modern reinforced concrete (RC) walls may not achieve the expected ductile response and these walls could possibly fail due to global and local bu ...

2014

Numerical simulation with fibre beam-column models of thin RC column behaviour under cyclic tension-compression

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

2017

Out-of-plane instability of thin single-layered members: recent advancements in the characterization of the mechanism

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Angelica Rosso

2018

Adequabilidade de deformações locais como parâmetro na avaliação sísmica de paredes de betão armado

Katrin Beyer, João Saraiva Esteves Pacheco de Almeida, Danilo Tarquini

O dano severo e o colapso de diversos edifícios com paredes estruturais em betão armado (BA) durante os recentes sismos do Chile (2010) e Nova Zelândia (2011) revelaram que muitas paredes de BA não tiveram o desempenho que seria expectável da aplicação das ...

2014