A educação para o agronegócio vem ganhando espaços importantes na esfera brasileira. Os cursos de formação ligados a esse campo científico se multiplicam, mas o ensino proposto por eles, muita vezes, estão desconectados com a ciência do agronegócio contemporâneo. Por isso, objetivo desta dissertação é analisar a emergência do campo científico do agronegócio nas universidades, buscando identificar expressões da interdisciplinaridade na construção do conhecimento e na formação das bases curriculares dos programas de ensino para o agronegócio. Os processos metodológicos empregados compreendem a abordagem qualitativa e quantitativa, análise bibliográfica e a exploração de conteúdo. Este trabalho teve como método central o estudo de caso da Universidade Federal do Rio Grande do Sul (UFRGS), utilizando na coleta de dados desse caso e nas informações das escolas mundiais o método da mineração de texto ou bibliometria, embasados na Teoria Fundamentada. Verificou-se na pesquisa que a interdisciplinaridade do campo do agronegócio é caracterizada pelos diversos temas preponderantes e áreas disciplinares envolvidas nos estudos relativos a esta ciência, onde o estudo de caso da UFRGS confirmou a interdisciplinaridade do campo e a complexidade enfrentada por ele na formação universitária. A construção da educação para o agronegócio se dá em um ambiente interdisciplinar que congrega estudos como da produção à comercialização, da cadeia de suprimentos à preferência do consumidor, da preocupação com a natureza renovável e à interferência humana nos diversos elos. Por isso, requer um campo educacional próprio, que reflita a ciência que dela transpira, sem limitar sua visão a áreas disciplinares ou em uma abordagem particular. Essa educação interdisciplinar requer diretrizes curriculares que observem esse contexto e traduza o agronegócio em bases curriculares que construam e caminhe na convergência das peculiaridades temáticas, e em desenvolver habilidades e competências como pensamento crítico, criatividade, trabalho em equipe, motivação, ética e empreendedorismo, enquanto prepara profissionais para atuar no mercado do agribusiness brasileiro e mundial. A emergência da educação interdisciplinar para o agronegócio depende da construção coesa do que é contemporâneo em termos educacionais nessa ciência, como é a interdisciplinaridade, e que traga soluções e pesquisas coerentes com a evolução científica do agronegócio. / Education in agribusiness has been getting important spaces in Brazil. The courses related to this scientific field multiply, but the proposed educational for them, many times, are disconnected with the science of contemporary agribusiness. Therefore, the objective of this dissertation is to analyze the emerging scientific field of agribusiness in universities, looking for to identify expressions of interdisciplinarity in the construction of knowledge and formation of the curriculum foundations of the education programs for agribusiness.The methodological processes used include the qualitative and quantitative approach, literature review and content exploration. This work used as principal method the case study from the Federal University of Rio Grande do Sul (UFRGS) using the data collection of this case and the information from the schools worldwide the method of text mining or bibliometrics grounded in the Grounded Theory. It was found that the interdisciplinarity in agribusiness is characterized by several preponderant themes and disciplines involved in the studies of this science, where the case study from UFRGS confirmed the complexity and multidisciplinarity faced by it in the higher education. The construction of the education for agribusiness occurs in interdisciplinary environment that brings together studies from production to marketing, supply chain to the consumer preference and concern for the renewable nature and human interference in the various links. Therefore it requires a proper educational field that reflects the science that exudes without limiting its vision to disciplinary areas or a particular approach. This interdisciplinary education requires curriculum guidelines that meet this context and translate the agribusiness in curriculum bases that build and walk on convergence of the thematic peculiarities, and develop skills and competencies such as critical thinking, creativity, teamwork, motivation, ethics and entrepreneurship, while preparing professionals to work in the Brazilian and international agribusiness market. The emergence of interdisciplinary education for agribusiness depends on the cohesive building of what is contemporary in educational on this science, just like the interdisciplinarity is, and bring solutions and researches consistent with the scientific development of agribusiness.

SammanfattningI december 2008 gav regeringen Arbetsförmedlingen i uppdrag att anställa och utbildainterna jobbcoacher. Coachernas huvudmål skulle vara att coacha arbetssökande individermot ett arbete. Men eftersom en förutsättning för att en arbetssökande ska kunna ta ett arbeteär att den är anställningsbar, så väcktes för oss intresset att undersöka vad anställningsbarhetinnebär ur jobbcoachernas perspektiv. Samtidigt har frågan kring hur jobbcoacherna kancoacha på ett förtroendefullt sätt aktualiserats då det under hösten 2009 lagts fram starkkritik mot regeringens satsning på Arbetsförmedlingens jobbcoacher i media. Kritiken harfrämst riktats mot hur jobbcoacherna ska kunna coacha folk till arbete då lågkonjunkturråder, med brist på arbetstillfällen som följd. Det är svårt att tänka sig hur man somjobbcoach ska kunna skapa förtroende hos sina arbetssökande om man inte säkert kan se tillatt de mot slutet av coachningen får en anställning. Syftet med denna studie är därför attundersöka vilka betydelser som jobbcoacher tillskriver sitt arbete och sina möjligheter att, påett förtroendefullt sätt, coacha de arbetssökande mot anställningsbarhet. Undersökningen ärutförd med en kvalitativ metod genom individuella semistrukturerade intervjuer. Deintervjuade personerna är nio stycken interna jobbcoacher anställda på Arbetsförmedlingar iVästra Götalands län. De viktigaste slutsatserna av studien visar att jobbcoacherna till störstdel tillämpar ett förståelsebaserat synsätt på anställningsbarhet och att den innebörd somrespondenterna främst lägger i uppdraget att coacha de arbetssökande är att göra demmedvetna om hur de blir mer anställningsbara. Det framkommer även att jobbcoacherna serpositivt på sina möjligheter att coacha de arbetssökande på ett förtroendefullt sätt då de serfler organisatoriska förutsättningar än hinder för förtroendeskapande. Slutligen har vi ävenkommit fram till att jobbcoacherna främst använder tre olika strategier för att skapaförtroende till de arbetssökande. Strategierna är förtroendeskapande genom tillit somrationellt val, förtroende genom relationsbaserad tillit samt överbryggande strategier därcoacherna genom att skapa goda relationer med potentiella arbetsgivare skaffar sig viktigaresurser för att utföra sitt uppdrag på ett bra och effektivt sätt.

Nous construisons une analyse des dispositifs identitaires contemporains (dont les réseaux socionumériques) sur plusieurs niveaux : au niveau informatique (modèle conceptuel clôturant représentations sociales et sociabilités) ; au niveau microsocial (négociation des singularités subjectives et ancrage des normes sociales) ; au niveau économique (stratégies hégémoniques et partenariat avec les industries culturelles) ; au niveau sociopolitique (expérimentation de postures individuelles sur la base d'expériences affectives et dans un cercle privé rendant possible l'engagement dans les processus délibératifs constituant le sens commun). Pour appréhender ces enjeux, nous avons mis en œuvre une méthodologie immersive et multi-située en compagnie d'une population composée de figures du sujet contemporain : des apprentis en BTS dans le secteur du Tertiaire, soumis à un complexe de contraintes, et engagés au niveau personnel et socioprofessionnel dans divers dispositifs identitaires. Il ressort de ces analyses plusieurs propositions théoriques, dont celle du cadre privatif présenté comme ensemble de contraintes identitaires définies ou négociées par les interactants et resitué au niveau informatique (ingénierie de la vie privée médiatisée), microsocial (veille mutuelle), économique (modèle socioéconomique du salon), sociopolitique (espace anecdotique), et méthodologique (immersion auprès des usagers). / We build an analysis of contemporary identity devices (including social network sites) on several levels: computer (conceptual model ending social representations and sociability), microsocial (negotiating subjective singularities and anchoring social norms), economics (hegemonic strategies and partnerships with cultural industries), socio-political (experimenting individual postures based on emotional experiences in a « private club model » and making it possible to engage in deliberative processes constituting common sense). To understand these issues, we have implemented an immersive and multi-situated methodology located in a population composed of contemporary subject's figures: young apprentices in the Tertiary, subject to complex constraints, and committed personal level, social and professional identity in various devices. It is clear from these analyzes several theoretical proposals, including the « privatory framework » presented as a set of identity constraints defined or negotiated by interactants and situating in Computer Science (engineering publicized privacy), the micro (mutual insight), economic (socioeconomic model of the « private club »), socio-political (anecdotical sphere) and methodological (immersion to users).

This paper concerns the framing of climate change in Svenska Dagbladet, during the period of January 1st to November 30th, 2018. Climate change has been described as the challenge of our time, perhaps even the biggest to ever face humanity. Though Sweden has, for a long time, expressed a general consensus regarding the existence and gravity of climate change the importance of how the question is handled remains. Media plays a crucial role in defining and explaining the issue, including causal interpretations and what ought to be done. The outset of the current study was to explore how one of Sweden’s leading newspapers constructs and represents this issue of climate change. Through a method of framing analysis, using Nisbet’s framing typology, the study examined 69 articles in Svenska Dagbladet within the chosen time frame. Two research questions guided the study: Q1 - Which are the primary frames used in the articles? Does frequency differ among the frames? Q2 - What constitutes each frame? Which defining features and arguments can be identified for each frame? The results show that climate change is portrayed as an advanced crisis with the need for immediate and massive efforts to limit the consequences. The newspaper highlights the importance of lowering individual footprint, the need for a green approach in markets and above all, the pivotal role of the UN and transnational agreements for a global solution. More work is needed within the research field to further investigate the findings concluded in this paper.

This thesis presents the results of a numerical investigation of the whole range, large deflection behaviour of axially and rotationally restrained RC beams and interactions between beams and columns in RC frame structures exposed to fire. The dynamic explicit time integration algorithm implemented in the general finite element package ABAQUS/Explicit solver was used so as to overcome various modelling challenges including temporary instability, local failure of materials, non-convergence and long simulation time. Either load factoring or mass scaling may be used to speed up the simulation process. Validity of the proposed simulation model was checked by comparison of simulation results against relevant test results of restrained RC beams at ambient temperature and in fire. The validated ABAQUS/Explicit model was then used to conduct a comprehensive study of the effects of different levels of axial and rotational restraints on the whole range behaviour of RC beams in fire, including combined bending and compression due to restrained thermal expansion, bending failure, transition from compression to tension when catenary action develops and complete fracture of reinforcement at ultimate failure. The numerical results show that different bending failure modes (middle span sagging failure, end hogging failure due to fracture of tensile reinforcement, end hogging failure due to concrete crushing) can occur under different levels of boundary restraints. Furthermore, release of a large amount of energy during the rapid transition phase from compression to tension in a beam prevents formation of a three hinge mechanism in the beam under bending. The numerical results have also revealed that reliable catenary action develops at large deflections following bending failure only if bending failure is governed by compressive failure of concrete at the end supports whereby a continuous tension path in the beam can develop in the top reinforcement. To allow fire engineering practice to take into consideration the complex restrained RC beam behaviour in fire, a simplified calculation method has been developed and validated against the numerical simulation results. The proposed method is based on sectional analysis and meets the requirements of strain compatibility and force equilibrium. The validation study results have shown that the simplified method can satisfactorily predict the various key quantities of restrained beam axial force and beam deflection-fire exposure time relationships, with the simplified method generally giving results on the safe side. The validated explicit finite element model in ABAQUS was also used to investigate structural interactions between beams and columns within an RC frame structure with different fire exposure scenarios. When fire exposure involves beams and columns located in edge bays of a frame, catenary action cannot develop. Also due to thermal expansion of the connected beam, additional bending moments can generate in the columns. Furthermore, very large hogging moments can be induced at the beam end connected to the internal bay. It is necessary to include these bending moments when designing beams and columns under such fire conditions. Catenary action can develop in interior beams of the frame when fire exposure is in interior bays where the beams have high degrees of axial restraint.

The United Kingdom published a legally binding document to reduce national greenhouse gas emissions by year 2020 up to 34% against the 1990 levels. This target also fulfils the Europe 2020 strategy of 20% carbon emission reductions by year 2020 (EC, 2010). Emissions due to space heating count for around 60% of the total domestic emissions (DCLG, 2012). The report “Rethinking Construction” published in 1998 emphasised the opportunities to improve the quality and efficiency of the UK construction sector (Egan, 1998). More recently, a framework has been published by the Government to tackle fuel poverty by building more energy efficient homes (DECC, 2015). In terms of energy performance, Passivhaus is recognised as one of the most energy efficient and researched construction standards which requires an exceptionally high-level of insulation and airtightness. Closed-panel timber frames are a relatively new system in UK with an opportunity for growth. These advanced panels are pre-fitted in the factory, reducing the on-site work. However, closed-panel systems present a more complex sole plate fixing detail which can have an undesirable long-term impact on the structural and thermal performance of the building. The work presented in this thesis investigates the structural considerations, racking performance, of timber frame closed panel systems for future building regulations. The thesis underlines the significance of structural stability, serviceability and detailing in relationship with long-term thermal efficiency and airtightness, according to Passivhaus standard. An experimental study was carried out to investigate the structural racking performance of advanced closed panel systems. A comparison was made between the behaviour of the timber frame panels and the analytical PD 6693-1. A set of different wall panel built-ups is presented for optimised Passivhaus design, including thermal bridge-free sole plate details. A timber frame racking software application was developed to optimise the structural design of shear walls. A parametric study was carried out with this tool to generate efficient timber frame wall design tables for different applied racking loads and U-values. The software application also allows for direct specification of robust sole plate base fixings and thermal bridge free details.

O conteúdo deste trabalho trata da formulação para solução do problema de otimização estrutural com minimização de massa em estruturas unifilares, sujeitas a restrição de tensão, flambagem das barras isoladas e fadiga. São considerados três casos de otimização: paramétrica, de forma e dimensional. Os problemas de singularidades nas restrições de tensão e flambagem são evitados através de uma formulação que faz uso de programação inteira para solução do problema. Outra singularidade encontrada na otimização topológica é a singularidade na matriz de rigidez da estrutura. Este problema foi evitado através de uma formulação que considera a existência de matriz de rigidez regular como restrição do problema. O método de solução utilizado para resolver problema de otimização é o método dos algoritmos genéticos. As restrições do problema são impostas através da penalização da função objetivo. O método de solução mostrou-se adequado para solução dos problemas estudados. A formulação implementada é validada através da solução de problemas clássicos de otimização estrutural. Os resultados obtidos são comparados com a literatura onde verificou-se a coerência dos mesmos. Após realizar a validação, a formulação é utilizada em um estudo que tem como base uma estrutura real: uma torre de queima de gases (flare) oriundos do processo de extração e armazenagem de petróleo em uma unidade flutuante. Para o problema da torre as restrições foram determinadas com base em critérios de falha estabelecido na norma DNV. A otimização do flare permitiu minimizar a massa da estrutura sem que os critérios de falha fossem violados. Verificou-se que a metodologia proposta é adequada para solução com grande número de restrições e com diversos casos de carregamento. / The purpose of this work is the development of a methodology to solve the structural optimization problem of frame structures subject to stress, buckling of isolated members, and fatigue constraints. Three types of structural optimization problems are considered: sizing, shape and topological. The stress and buckling singularity problems are avoided by an integer design variable formulation, using integer programing to obtain the optimization problem solution. Another issue found in optimization problems is the stiffness matrix singularity. The proposed formulations include the linear system stability as a constraint in the optimization problem. A genetic algorithm is used to solve the general optimization problem. All constraints of the problem are included with a penalization equation. The results show that genetic algorithm is a good approach to solve the proposed formulation. The proposed formulation is tested for solving classical optimization problems. The obtained results are consistent with the literature. A real engineering problem is solved with proposed methodology: a gas burning tower (flare). In this problem, all constraints are based on failure criteria recommended by DNV standards. The structural optimization of this problem shows that structural mass minimization is possible without violating the failure criteria. It is observed that solution methodology deals successfully with problems with multiple constraints and load cases

Made available in DSpace on 2017-07-10T16:17:04Z (GMT). No. of bitstreams: 1 1Joao Carlos de Campos.pdf: 1113212 bytes, checksum: f3c7d25ef5b8db4e7de7a8b2aaf0c55a (MD5) Previous issue date: 2014-08-29 / This work allows a reflection on the historical process of creation and implementation of the Latin American Schools of Agro-ecology, under the responsibility of CLOC-Via Campesina (Latin American Coordination of Rural Organizations and Via Campesina), as an established strategy to carry on formation of activists to build up the integration of peasants of Latin America. This school project had its begin on the first years of the 21st century. It is rooted in the perspective of Bolivarian Alliance to People of Our America ALBA (Commerce Trade of the People), out of the concept that integration is cooperation, solidary and complementarity. Therefore, the problem in this paper is to analyze how to express the Latin American integration in the curriculum of these schools. From a qualitative analytical approach the general goal of this dissertation was to analyze how the Latin American integration expresses itself in the formation process of the students of the Latin American School of Agro-ecology (ELAA-Brasil) and of the Latin American College Institute of Agro-ecology Paulo Freire (IALA-Paulo Freire/Venezuela), throughout the curricular framing and syllabus of the disciplines. In order to come to true this objective the following specific goals were established: a) to present some aspects of theories that guide the concept of Latin American integration in the region; b) to present the historical process of creation and implementation of the schools of Agro-ecology of the CLOC-Via Campesina in Brasil and Venezuela; c) highlight from the curriculums of those schools listed above the mention of Latin American Integration; d) identify and analyze the concept of integration expressed in the curricular framing and its contends. From the literature, documentary and field research , which was gathered from the Latin American School of Agroecology Cloca - Via Campesina fit into the context of a dispute of class projects with antagonistic content, and express the theoretical orientations of curriculum and content the disciplines that make up the courses , as well as the internationalist character, which are in the opposite direction of the projects that advocate the integration and incorporation of new markets. It is a political , educational and social project that aims to shine their light to the different corners of Latin America, since the subjects trained in Elaa Iala Paulo Freire and return to their countries of origin where they continue to struggle for a decent life for future generations , to build and strengthen a new mode of production oriented to socialism and supported in agroecology , which is linked to the need for an integration that takes place among Latin American countries to constitute a " Patria Grande " Latin America based on values of equality and solidarity. / O presente trabalho permite uma reflexão sobre o processo histórico da criação e implementação das Escolas Latino-Americanas de Agroecologia da Coordenadora Latino-Americana de Organizações do Campo e Via Campesina (Cloc-Via Campesina) como uma estratégia de formação de militantes na construção da integração camponesa latino-americana. Este projeto de escola teve início na metade da primeira década do século XXI, orienta-se desde a perspectiva da Aliança Bolivariana para os Povos de Nossa América Tratado de Comércio dos Povos (Alba-TCP), que parte da concepção de integração como cooperação, solidariedade e complementaridade, portanto, a problemática neste trabalho é analisar como se expressa a integração latino-americana na estrutura curricular destas escolas. A partir de uma abordagem qualitativa e analítica o objetivo geral desta dissertação foi analisar como se expressa a integração latino-americana na formação dos estudantes da Escola Latino-Americana de Agroecologia (Elaa-Brasil) e do Instituto Universitário Latino-Americano de Agroecologia Paulo Freire (Iala Paulo Freire-Venezuela), por meio da organização curricular e dos conteúdos inscritos nas disciplinas. Para concretizar esse objetivo foram definidos os seguintes objetivos específicos: a) apresentar aspectos de algumas teorias que orientam o conceito de integração latino-americana e suas lições na conformação teórica da integração na região; b) apresentar o processo histórico de criação e da implementação das escolas de agroecologia da Cloc-Via Campesina no Brasil e na Venezuela, como constitutivo central da construção do currículo dessas escolas; c) destacar nos currículos das referidas escolas os conteúdos que tratam especificamente sobre a integração latino-americana; d) identificar e analisar a concepção de integração expressa na organização curricular e seus conteúdos. A partir da pesquisa bibliográfica, documental e de campo, se depreendeu que as Escolas Latino-americanas de Agroecologia da Cloca-Via Campesina se inserem no contexto de disputa de projetos de classe com conteúdos antagônicos, e expressam nas orientações teóricas do currículo e nos conteúdos das disciplinas que compõem os cursos ministrados, como também pelo caráter internacionalista, que estão na direção contrária dos projetos que defendem a integração como processo de incorporação de novos mercados. Trata-se de um projeto político, educativo e social que pretende irradiar sua luz aos distintos rincões da América Latina, pois os sujeitos formados na Elaa e no Iala Paulo Freire retornarão aos seus países de origem onde continuarão a luta por uma vida digna para as futuras gerações, na construção e fortalecimento de um novo modo de produção orientado ao socialismo e apoiado na agroecologia, que se vincula à necessidade de uma integração que se realiza entre países latino-americanos por constituir a Pátria Grande latino-americana com base nos valores de igualdade e solidariedade.

This thesis analysed the variety of views expressed about disparities between Romanian Roma and non-Roma by people who are actively engaged in redressing unjust social and economic differences. The focus was placed on the variability of views between and within three different contexts: academic texts proposing policy measures for addressing disparities between Roma and non-Roma people; policy documents concerning measures for Roma inclusion; and conversations by people involved in the implementation of Roma inclusion policy measures. The general concerns of this study were to identify (1) the ways in which the problem of ethnic disparity was portrayed, (2) the solutions proposed to the problem of ethnic disparity, (3) the ambivalent, dilemmatic or concealed aspects concerning the topic of disparities between Roma and non-Roma people living in Romania, (4) whether the perspectives of Roma people were accounted for in the contexts analyses and (5) the similarities and differences between the discourses of academics, policy makers, practitioners and beneficiaries of public policies concerning disparities. The theoretical foundation for this thesis was offered by the social psychological literature that links disparities between groups of people and racial or ethnic prejudice. There are four ways in which this thesis has contributed to this literature. Firstly, most of the social psychological research on ethnic disparities has been experimental, whereas in this thesis, the focus was on the often overlooked discursive practices concerning ethnic disparities. Secondly, although some of the social psychological literature, especially research on the contact hypothesis and social identity theory, has looked at the dynamic interrelationship between advantaged and disadvantaged group members, most research has focused only on the perspectives of the advantaged group members. Therefore, there remains a research gap in the literature concerning the perspectives presented in inter-ethnic interactions, and even more so, by disadvantaged group members. This thesis added to the analysis the perspectives of advantaged and disadvantaged group members, both separately and in interaction. Thirdly, whereas emergent work looks at the ambivalent views towards ethnic or racial minorities, and the possible ironic effects of prejudice reduction strategies, there is virtually no research about the possible ironic, ambivalent or dilemmatic effects of strategies which target systemic based ethnic disparities - issues explored in this thesis. Finally, most social psychological research focuses on a single context of study, most commonly the public perceptions about members of the disadvantaged groups, but also marginally mass media representations, academic publications or political discourses. This thesis places attention on an equally important area of study concerned with whether and how discourses can move between different domains, and the impact or acknowledgement of elite discourses on the everyday conversations. There are four key findings that emerged from the studies conducted for this thesis. Firstly, it was found that while expressing views about ethnic disparity, academics, policymakers, practitioners and beneficiaries of public policies for Roma people displayed subtle forms of ethnicism. Secondly, a great deal of political discourse was devoted to the encouragement of individual changes in ethnic minorities, without a similar focus on the roles of majority group members in perpetuating inequality. Whereas, the problem of Roma inclusion was acknowledged by academics, policymakers, practitioners and beneficiaries of policy measures, to be a matter for public policies, some of the attribution of responsibility for inclusion was offered to Roma people, who were encouraged to change as individuals in accord with majoritarian norms. Thirdly, the analysis showed the inclusion of the perspectives of ethnic minorities only in two of the three contexts where policy measures for Roma people were proposed and implemented: academic publications and conversations. The perspectives of feminist experts and women were only marginally present in academic publications and conversations, while missing from policy discourses. Also the perspectives of academics or the non-hegemonic voices of excluded or disadvantaged Roma people were largely absent from the arguments presented in policy documents for Roma inclusion. Lastly, this thesis found that there are ambivalence, dilemmas and concealment at work within arguments proposing policy measures for redressing ethnic disparities, with important political consequences. The findings of this thesis contribute to the important conversation about the meanings of disparity and the political solutions for achieving equality between groups of people. Also, the findings of this thesis have important implications for the social psychological theory of disparity, the policies for redressing disparity and the social work practice with disadvantaged group members.

Submitted by Wallison Medeiros (wamedeiros@hotmail.com) on 2019-01-22T10:58:45Z No. of bitstreams: 1 Medeiros_WA.pdf: 11036463 bytes, checksum: 842aff888e052eb4d2fc0aa7a42f3484 (MD5) / Approved for entry into archive by Lucas Paganine (lucaspaganine@ibict.br) on 2019-02-05T16:59:15Z (GMT) No. of bitstreams: 1 Medeiros_WA.pdf: 11036463 bytes, checksum: 842aff888e052eb4d2fc0aa7a42f3484 (MD5) / Made available in DSpace on 2019-02-05T16:59:18Z (GMT). No. of bitstreams: 1 Medeiros_WA.pdf: 11036463 bytes, checksum: 842aff888e052eb4d2fc0aa7a42f3484 (MD5) Previous issue date: 2018 / This research presents a study on the behavior of precast concrete frames with participating masonry infill to be considered in the design of a building lateral load bracing system. The study brings a literature review on the topic. An experimental testing of a reinforced concrete frame infilled or not with masonry is used to calibrate a finite element model using the Simulia Abaqus 2017 package. The model uses concrete damage plasticity to consider both the concrete and the masonry behaviour. Embedded elements are used to consider rebars inside the concrete. Masonry elements are considered homogeneous with contact surfaces along the concrete-masonry interface. After the properties were calibrated the numerical models showed excellent accuracy when compared to the experimental tests. Precast concrete frames, whose dimensions and properties were from a real case, was then modelled with and without the participating masonry frame. The column-corbel and beam connection was modelled with solid elements with contact surface on the interface allowing to close represent its behaviour. Models considered a frame with one, five and ten storeys, two masonry strength and the use or nor of a mortar layer to fix masonry under the concrete beam. Conclusion from the finite element model analyses indicate the influence of each parameter on the system behaviour. The FEM results were then used to calibrate the width of a diagonal truss to be used in simple bar element models. Finally, a 3D-frame model was used to evaluate a actual 10-story precast concrete building considering or not the participating infill masonry. Only two masonry walls, close to the building central core and without openings, were considered yet results indicate great influence on considering the participating infill leading to an efficient building design. Future work is proposed to experimentally evaluate the conclusions from the numerical analyses here reported. / O presente trabalho realizou um estudo sobre o comportamento de estruturas aporticadas em concreto pré-moldado preenchidas com painéis de alvenaria, para fim de contraventamento de edificações, considerando a contribuição dessa alvenaria de preenchimento no pórtico pré-moldado para análise de ações horizontais. O estudo traz uma revisão da literatura sobre o tema. Um ensaio experimental de um pórtico de concreto armado preenchido ou não com alvenaria é usado para calibrar um modelo de elementos finitos usando o pacote Simulia Abaqus 2017. O modelo utiliza o dano plástico do concreto (CDP) para considerar o comportamento do concreto e alvenaria. Elementos embutidos são usados para considerar armaduras dentro do concreto. Os elementos de alvenaria são considerados homogêneos com as superfícies de contato ao longo da interface concreto-alvenaria. Depois que as propriedades foram calibradas, os modelos numéricos apresentaram excelente precisão quando comparados aos testes experimentais. Os quadros de concreto pré-fabricados, cujas dimensões e propriedades eram de um caso real, foram então modelados com e sem o preenchimento de alvenaria participante. A conexão pilar-viga foi modelada com elementos sólidos com superfície de contato na interface permitindo representar seu comportamento. Os modelos considerados foram um quadro com um, cinco e dez andares, duas resistências de alvenaria e o uso ou não de uma camada de argamassa para fixar alvenaria sob a viga de concreto. A conclusão das análises do modelo de elementos finitos indica a influência de cada parâmetro no comportamento do sistema. Os resultados de MEF foram utilizados para calibrar a largura de uma diagonal equivalente para ser usado em modelos simples de elementos de barras. Finalmente, um modelo de pórticos em 3D foi usado para avaliar um prédio de concreto pré-moldado de 10 andares, considerando ou não a alvenaria participante. Apenas duas paredes de alvenaria, perto do núcleo central do edifício e sem aberturas foram consideradas, os resultados indicam grande influência ao considerar o preenchimento participante, levando a um projeto de construção eficiente. O trabalho futuro é proposto para avaliar experimentalmente as conclusões das análises numéricas aqui relatadas.