Subjects -> BUILDING AND CONSTRUCTION (Total: 146 journals)
    - BUILDING AND CONSTRUCTION (138 journals)
    - CARPENTRY AND WOODWORK (8 journals)

BUILDING AND CONSTRUCTION (138 journals)                     

Showing 1 - 35 of 35 Journals sorted alphabetically
A+BE : Architecture and the Built Environment     Open Access   (Followers: 34)
Academia : Architecture and Construction     Open Access   (Followers: 2)
Advances in Building Education     Open Access   (Followers: 8)
Advances in Building Energy Research     Hybrid Journal   (Followers: 13)
Ambiente Construído     Open Access   (Followers: 1)
Anales de Edificación     Open Access   (Followers: 1)
Asian Journal of Civil Engineering     Hybrid Journal   (Followers: 1)
Australasian Journal of Construction Economics and Building     Open Access   (Followers: 10)
Australasian Journal of Construction Economics and Building - Conference Series     Open Access   (Followers: 1)
Baltic Journal of Real Estate Economics and Construction Management     Open Access   (Followers: 3)
Baurechtliche Blätter : bbl     Hybrid Journal  
Bautechnik     Hybrid Journal   (Followers: 3)
BER : Architects and Quantity Surveyors' Survey     Full-text available via subscription   (Followers: 6)
BER : Building and Construction : Full Survey     Full-text available via subscription   (Followers: 12)
BER : Building Contractors' Survey     Full-text available via subscription   (Followers: 2)
BER : Building Sub-Contractors' Survey     Full-text available via subscription   (Followers: 2)
BER : Capital Goods Industries Survey     Full-text available via subscription  
BER : Survey of Business Conditions in Building and Construction : An Executive Summary     Full-text available via subscription   (Followers: 3)
Beton- und Stahlbetonbau     Hybrid Journal   (Followers: 2)
Building & Management     Open Access   (Followers: 3)
Building Acoustics     Hybrid Journal   (Followers: 4)
Building Research Journal     Open Access   (Followers: 4)
Building Services Engineering Research & Technology     Hybrid Journal   (Followers: 3)
Buildings     Open Access   (Followers: 8)
BUILT : International Journal of Building, Urban, Interior and Landscape Technology     Open Access   (Followers: 1)
Built Environment Inquiry Journal     Open Access  
Built Environment Project and Asset Management     Hybrid Journal   (Followers: 16)
Built-Environment Sri Lanka     Full-text available via subscription  
Case Studies in Construction Materials     Open Access   (Followers: 10)
Cement and Concrete Composites     Hybrid Journal   (Followers: 22)
Cement and Concrete Research     Hybrid Journal   (Followers: 22)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 7)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 6)
Change Over Time     Full-text available via subscription   (Followers: 3)
City, Culture and Society     Hybrid Journal   (Followers: 26)
Civil Engineering = Siviele Ingenieurswese     Full-text available via subscription   (Followers: 4)
Clay Technology     Full-text available via subscription  
Concreto y cemento. Investigación y desarrollo     Open Access   (Followers: 1)
Construction Economics and Building     Open Access   (Followers: 4)
Construction Engineering     Open Access   (Followers: 11)
Construction Management and Economics     Hybrid Journal   (Followers: 23)
Construction Research and Innovation     Hybrid Journal   (Followers: 4)
Construction Robotics     Hybrid Journal   (Followers: 3)
Corporate Real Estate Journal     Full-text available via subscription   (Followers: 6)
Dams and Reservoirs     Hybrid Journal   (Followers: 4)
Developments in the Built Environment     Open Access   (Followers: 1)
Energy and Built Environment     Open Access   (Followers: 1)
Engineering Project Organization Journal     Hybrid Journal   (Followers: 8)
Engineering, Construction and Architectural Management     Hybrid Journal   (Followers: 10)
Environment and Urbanization Asia     Hybrid Journal   (Followers: 4)
Facilities     Hybrid Journal   (Followers: 4)
Frontiers in Built Environment     Open Access   (Followers: 1)
FUTY Journal of the Environment     Full-text available via subscription   (Followers: 1)
Gaceta Técnica     Open Access  
GISAP : Technical Sciences, Construction and Architecture     Open Access  
Glass Structures & Engineering     Hybrid Journal  
Handbook of Adhesives and Sealants     Full-text available via subscription   (Followers: 2)
HBRC Journal     Open Access   (Followers: 2)
Heritage Matters : The Magazine for New Zealanders Restoring, Preserving and Enjoying Our Heritage     Full-text available via subscription   (Followers: 2)
Housing and Society     Hybrid Journal   (Followers: 6)
HVAC&R Research     Hybrid Journal  
Indoor and Built Environment     Hybrid Journal   (Followers: 3)
Informes de la Construcción     Open Access  
Intelligent Buildings International     Hybrid Journal   (Followers: 1)
International Journal of Advanced Structural Engineering     Open Access   (Followers: 25)
International Journal of Air-Conditioning and Refrigeration     Hybrid Journal   (Followers: 17)
International Journal of Architectural Computing     Full-text available via subscription   (Followers: 7)
International Journal of Built Environment and Sustainability     Open Access   (Followers: 8)
International Journal of Concrete Structures and Materials     Open Access   (Followers: 16)
International Journal of Construction Engineering and Management     Open Access   (Followers: 11)
International Journal of Construction Management     Hybrid Journal   (Followers: 4)
International Journal of Disaster Resilience in the Built Environment     Hybrid Journal   (Followers: 7)
International Journal of Housing Markets and Analysis     Hybrid Journal   (Followers: 10)
International Journal of Masonry Research and Innovation     Hybrid Journal   (Followers: 1)
International Journal of Protective Structures     Hybrid Journal   (Followers: 6)
International Journal of River Basin Management     Hybrid Journal   (Followers: 1)
International Journal of Structural Stability and Dynamics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Building Technology and Urban Development     Hybrid Journal   (Followers: 13)
International Journal of Sustainable Built Environment     Open Access   (Followers: 7)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (Followers: 9)
International Journal of Sustainable Real Estate and Construction Economics     Hybrid Journal   (Followers: 2)
International Journal of the Built Environment and Asset Management     Hybrid Journal   (Followers: 5)
International Journal of Ventilation     Full-text available via subscription   (Followers: 1)
International Journal Sustainable Construction & Design     Open Access   (Followers: 4)
Journal for Education in the Built Environment     Open Access   (Followers: 3)
Journal of Aging and Environment     Hybrid Journal   (Followers: 6)
Journal of Architecture, Planning and Construction Management     Open Access   (Followers: 11)
Journal of Asian Architecture and Building Engineering     Open Access  
Journal of Building Construction and Planning Research     Open Access   (Followers: 11)
Journal of Building Engineering     Hybrid Journal   (Followers: 4)
Journal of Building Materials and Structures     Open Access   (Followers: 3)
Journal of Building Pathology and Rehabilitation     Hybrid Journal  
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 8)
Journal of Civil Engineering and Construction Technology     Open Access   (Followers: 16)
Journal of Civil Engineering and Management     Open Access   (Followers: 9)
Journal of Computational Acoustics     Hybrid Journal   (Followers: 6)
Journal of Computing in Civil Engineering     Full-text available via subscription   (Followers: 22)
Journal of Construction Engineering     Open Access   (Followers: 9)
Journal of Construction Engineering, Technology & Management     Full-text available via subscription   (Followers: 6)
Journal of Construction Project Management and Innovation     Full-text available via subscription   (Followers: 8)
Journal of Facilities Management     Hybrid Journal   (Followers: 6)
Journal of Green Building     Full-text available via subscription   (Followers: 12)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (Followers: 5)
Journal of Property, Planning and Environmental Law     Hybrid Journal   (Followers: 4)
Journal of Structural Fire Engineering     Full-text available via subscription   (Followers: 6)
Journal of Sustainable Cement-Based Materials     Hybrid Journal  
Journal of Sustainable Design and Applied Research in Innovative Engineering of the Built Environment     Open Access   (Followers: 2)
Journal of the South African Institution of Civil Engineering     Open Access   (Followers: 2)
Journal of Transport and Land Use     Open Access   (Followers: 26)
Landscape History     Hybrid Journal   (Followers: 14)
Materiales de Construcción     Open Access   (Followers: 2)
Mauerwerk     Hybrid Journal  
Modular and Offsite Construction (MOC) Summit Proceedings |     Open Access   (Followers: 4)
Naval Engineers Journal     Hybrid Journal   (Followers: 2)
Open Construction & Building Technology Journal     Open Access  
Organization, Technology and Management in Construction     Open Access  
PARC Pesquisa em Arquitetura e Construção     Open Access  
Proceedings of the Institution of Civil Engineers - Forensic Engineering     Hybrid Journal  
Proceedings of the Institution of Civil Engineers - Urban Design and Planning     Hybrid Journal   (Followers: 13)
Revista ALCONPAT     Open Access   (Followers: 2)
Revista de la Construcción     Open Access  
Revista de Urbanismo     Open Access   (Followers: 2)
Revista Hábitat Sustenable     Open Access   (Followers: 1)
Revista IBRACON de Estruturas e Materiais     Open Access   (Followers: 1)
Revista Ingenieria de Construcción     Open Access   (Followers: 1)
Revista INVI     Open Access  
RILEM Technical Letters     Open Access  
Room One Thousand     Open Access  
Ruang-Space: Jurnal Lingkungan Binaan (Journal of The Built Environment)     Open Access  
Russian Journal of Construction Science and Technology     Open Access  
Science and Engineering of Composite Materials     Open Access   (Followers: 62)
Science and Technology for the Built Environment     Hybrid Journal   (Followers: 1)
Smart and Sustainable Built Environment     Hybrid Journal   (Followers: 8)
Steel Construction - Design and Research     Hybrid Journal   (Followers: 5)
Stroitel’stvo : Nauka i Obrazovanie     Open Access  
Structural Concrete     Hybrid Journal   (Followers: 10)
Structural Mechanics of Engineering Constructions and Buildings     Open Access   (Followers: 2)
Sustainable Buildings     Open Access   (Followers: 2)
Sustainable Cities and Society     Hybrid Journal   (Followers: 26)
Technology|Architecture + Design     Hybrid Journal : A Journal of the Built & Natural Environments     Free   (Followers: 3)
The Historic Environment : Policy & Practice     Hybrid Journal   (Followers: 6)
The IES Journal Part A: Civil & Structural Engineering     Hybrid Journal   (Followers: 6)
Tidsskrift for boligforskning     Open Access  
YBL Journal of Built Environment     Open Access  
Zeitschrift für Miet- und Raumrecht     Hybrid Journal  


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Revista IBRACON de Estruturas e Materiais
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Online) 1983-4195
Published by SciELO Homepage  [910 journals]
  • Experimental assessment of accelerated test methods for determining
           chloride diffusion coefficient in concrete

    • Abstract: The performance of accelerated test methods to determine the chloride diffusion coefficient in concrete is an important tool in the evaluation of the durability-related properties of the material and in the service life prediction of structures. In this way, this paper presents an experimental assessment of three standardized test methods for determining chloride diffusion coefficient. The migration-based tests presented by NT Build 492 and UNE 83987 and the diffusion-based test presented by ASTM C1556 were carried out. Six concrete mixes were produced: three with different water/binder ratios (0.45, 0.55, and 0.65) and three with replacement of cement by silica fume in the levels of 5, 10, and 20%. The results indicate that the method standardized by NT Build 492 has the best correlation with the diffusion test, in addition to being the one that requires the shortest execution time and has the lowest coefficient of variation of the results.Resumo A realização de ensaios acelerados de determinação do coeficiente de difusão de cloretos no concreto é uma importante ferramenta na avaliação das características relacionadas à durabilidade do material e na previsão da vida útil das estruturas. Nesse sentido, este trabalho apresenta uma avaliação experimental de três metodologias normatizadas de determinação do coeficiente de difusão do concreto. Foram realizados os ensaios de migração iônica apresentados pela NT Build 492 e pela UNE 83987 e o ensaio de difusão regido pela ASTM C1556. Seis traços de concreto foram produzidos, sendo três com diferentes relações água/aglomerante (0,45, 0,55 e 0,65) e três com substituição de cimento por sílica ativa nos teores de 5, 10 e 20%. Os resultados indicam que o método normatizado pela NT Build 492 apresenta a melhor correlação com o ensaio de difusão, além de ser o que requer menor tempo de execução e apresentar menor coeficiente de variação dos resultados.
  • Behavior of composite beams with external prestressing in sagging moment

    • Abstract: Prestressed composite steel-concrete structures are scarcely used due to a lack of clear standardized design guidelines and formulations on the subject. The present research aims to present design methodologies for steel-concrete composite beams with external pretension applied via straight tendons. A computer program to perform structural analysis of such beams was developed based on two different methodologies: the first one is presented in ABNT NBR 8800:2008, in which the guidelines for the design of composite beams with compact webs are adjusted to include the effects of the pretension force. The second methodology is extracted from international literature and presents a structural design process based on stress distribution on the beam. Ninety prestressed and thirty non-prestressed beams were analyzed and designed with the aforementioned computer program to evaluate the influence of beam length, degree of symmetry of the steel profile and eccentricity of the pretension force on the mechanical resistance of the beams. It was observed that, although the prestressing force considerably improved resistance to bending, it introduced high compression stresses on the steel profile; hence, the pre-stressing of composite beams is proved efficient only for steel profiles with symmetrical cross-sections.Resumo A protensão em estruturas mistas de aço e concreto é pouco utilizada pela falta de normas e formulações claras sobre o assunto. Esse trabalho visa apresentar metodologias de análise e dimensionamento de vigas biapoiadas mistas de aço e concreto com protensão externa e cabo de traçado reto (pré-tração). Um programa computacional que efetua a análise e o dimensionamento dessas vigas foi elaborado com base em duas metodologias distintas: a da ABNT NBR 8800:2008, de vigas mistas compactas, ajustada para incluir os efeitos da força de protensão e uma segunda, extraída da literatura internacional, em que o dimensionamento é feito por meio da verificação das tensões atuantes. Noventa vigas mistas protendidas e trinta sem protensão foram calculadas por meio do programa computacional desenvolvido para avaliar a influência do comprimento do vão, do grau de monossimetria da seção transversal do perfil de aço e da excentricidade da força de protensão na capacidade resistente das vigas. Observou-se que embora a protensão gere uma melhora considerável no comportamento à flexão, a força de protensão introduz altas tensões de compressão no perfil de aço, por isso a eficiência da protensão foi comprovada apenas nos casos de vigas mistas com perfil de aço duplamente simétrico.
  • Contributions to the design of precast concrete culverts with unusual
           cross sections

    • Abstract: Culverts are structures used in road and railway infrastructure works such as underpasses. Among the several forms of cross-sections, the rectangular one (box culvert) has been mostly employed. However, when installed at high embankments, this structure shows high values of bending moment and shear force, which tend to be amplified by the soil arching. This paper addresses a study of section culvert with an arc cover, called modified, and a section defined by three arches, with a flat base. Such cross-section forms reduce the bending moment due to their geometry, and efforts can be decreased with the use of reduced thicknesses by mechanisms of soil-structure interaction. Analyses were performed in the plane-strain deformation with finite elements towards considering soil-structure interaction, and the results proved the influence of the geometry shape on the soil-culvert interaction behavior. A comparative analysis of the material cost index (ICM) values for 25 geometries (12 modified culverts, 12 culverts defined by three arcs and 1 box culvert) was used for estimating the economic viability of each unusual section culvert. The results showed 27 and 54% economy in materials for modified culvert and culvert defined by three arcs, respectively, in comparison with the rectangular section.Resumo As galerias são estruturas utilizadas em obras de infraestrutura rodoviária e ferroviária como passagens inferiores ou para transposição de talvegues. Embora existam várias formas de seções transversais, a seção transversal retangular (box culvert) é a mais empregada. No entanto, à medida que esta estrutura é instalada em elevadas alturas de terra, a forma retangular apresenta altos valores de momento fletor e força cortante. Este efeito tende a ser ampliado com o arqueamento do solo em grandes alturas de aterro. Neste artigo apresenta-se um estudo de galeria de seção com cobertura em arco, chamada modificada, e de seção definida por três arcos, com uma base plana. Com estas formas de seções transversais têm-se a diminuição dos esforços de flexão, devido à geometria. Além disto, pode-se reduzir ainda mais esses esforços com o emprego de espessuras reduzidas considerando os mecanismos de interação solo-estrutura. Para considerar a interação solo-estrutura foram realizadas análises no estado plano de deformação com elementos finitos. Os resultados comprovaram a influência significativa do formato das geometrias no comportamento da interação solo-galeria. Além disso, a análise comparativa do índice de custo de material (ICM) foi utilizada para estimar a viabilidade econômica de cada galeria não-usual. Os valores índice de custos de material foram analisados para 25 geometrias (12 galerias modificadas, 12 galerias definidas por três arcos e 1 galeria retangular), para as situações representativas preestabelecidas, os resultados mostram que a maior economia com material é de 29 e 54% para modificada e definida por três arcos, respectivamente, em comparação com a seção retangular.
  • Resistant bending moment to lateral-torsional buckling of continuous steel
           and concrete composite beams with transverse stiffeners

    • Abstract: In this paper, a numerical analysis using the finite element method, employing the commercial code Ansys, is performed to evaluate the influence of transverse stiffeners welded to the web of the steel profile on the lateral stiffness and resistant bending moment of continuous steel and concrete composite beams subjected to lateral-torsional buckling (LTB). The developed numerical model was validated by comparison with the results of tests performed by another researcher. Subsequently, a parametric analysis was carried out for beams with two and three spans, varying the spacing between the stiffeners. Finally, based on the analysis performed, it was concluded that the transverse stiffeners can significantly increase the lateral stiffness and the resistant moment of continuous composite beams. A calculation procedure to obtain this moment is proposed, having as reference the prescriptions of the Brazilian standard ABNT NBR 8800:2008.Resumo Neste artigo, uma análise numérica usando método dos elementos finitos, com apoio do software Ansys, é realizada para avaliar a influência de enrijecedores transversais soldados à alma do perfil de aço na rigidez lateral e no momento fletor resistente de vigas mistas contínuas de aço e concreto à flambagem lateral com distorção (FLD). O modelo numérico desenvolvido foi validado por meio de comparação com os resultados de ensaios realizados por outro pesquisador. Na sequência, foi feita uma análise paramétrica, para vigas com dois e três vãos, variando-se o espaçamento entre os enrijecedores. Finalmente, com base nas análises realizadas, conclui-se que os enrijecedores transversais podem aumentar significativamente a rigidez lateral e o momento resistente de vigas mistas contínuas e um procedimento de cálculo para se obter esse momento, tendo como referência as prescrições da norma brasileira ABNT NBR 8800:2008, é proposto.
  • Fatigue safety level provided by Brazilian design standards for a
           prestressed girder highway bridge

    • Abstract: It is well known that highway bridges are subjected to fatigue as they work under live loads with different frequencies and amplitude. The safety level for fatigue required by Brazilian codes is still unknown, especially for prestressed concrete girders. Also, current studies on fatigue reliability of bridges only evaluate bending. This work assesses the fatigue safety level provided by Brazilian design standards for a concrete highway bridge, using weigh-in-motion (WIM) data of an important federal Brazilian highway, BR-381 (Fernão Dias Highway). The Palmgren-Miner rule is considered to evaluate the service life and reliability indexes, from the fatigue point of view, of prestressed girders designed according to Brazilian codes. Using limited and complete prestressing levels, different traffic volumes are considered. It is found that the fatigue safety levels of longitudinal and transverse reinforcements are larger than the ones recommended by the international literature.Resumo As pontes rodoviárias, por receberem um carregamento variável proveniente do tráfego de veículos, são suscetíveis ao fenômeno de fadiga. O nível de segurança à fadiga proporcionado pelas normas brasileiras, porém, ainda é desconhecido, especialmente em relação às pontes com longarinas protendidas. Além disso, as publicações sobre confiabilidade à fadiga em pontes de concreto consideram apenas análise à flexão. Este trabalho avalia o nível de segurança à fadiga que as normas brasileiras de projeto proporcionam para uma ponte rodoviária de concreto, utilizando dados de pesagem em movimento (weigh-in-motion – WIM) de uma importante rodovia federal brasileira, a BR-381 (Rodovia Fernão Dias). Mediante a regra de Palmgren-Miner, avalia-se a vida útil e os índices de confiabilidade, sob o aspecto da fadiga, das longarinas protendidas dimensionadas conforme as normas brasileiras. Utiliza-se a protensão limitada e completa e consideram-se diferentes volumes de tráfego. Verifica-se que os níveis de segurança à fadiga das armaduras longitudinais e transversais são maiores que aqueles recomendados pela literatura internacional.
  • Effects of dowel bars misalignment in jointed plain concrete pavements –
           A numerical analysis considering thermal differentials and bonded
           slab-base interface

    • Abstract: Joints in concrete pavements are built to allow slab volumetric variations avoiding random cracks. Moreover, as they are discontinuities, the use of dowel bars prevents loss of load transfer across joints. During bars installation or even concrete casting, misalignments and misallocations of those devices may occur, affecting the concrete pavement structural performance. This study explores the effects of such non-conformities in the positioning of dowel bars through numerical modeling, using the 3D finite element program EverFE2.25. For, numerical simulations, bending stresses in concrete slabs of a typical bus corridor were ascertained, varying misalignments types and magnitudes (vertical tilt and horizontal skew), base type (cemented and asphalt), slab/base interface bond conditions and concrete thermal differential. Results disclosed the contribution of using bonded base in reducing stresses, even when the dowels were severely misaligned while slabs were subjected to high thermal differentials.Resumo As juntas em pavimentos de concreto são construídas com o objetivo de permitir a expansão e contração do concreto quando de alterações nas condições climáticas, impedindo a ocorrência de fissuras de retração de secagem aleatórias. Contudo, como as juntas serradas causam descontinuidades nos pavimentos, gerando o formato típico das placas, as barras de transferência de carga são introduzidas para evitar que a capacidade de transferência de carga do pavimento de concreto seja reduzida. Quando do posicionamento dessas barras em pista e mesmo durante a concretagem do pavimento podem ocorrer desalinhamentos, que por sua vez podem afetar o desempenho estrutural e funcional do sistema mesmo de maneira precoce. Assim, a investigação dos efeitos de desconformidades no posicionamento dessas barras nas tensões de serviço em pavimentos de concreto simples, por meio de modelagem numérica, torna-se ponto de partida para a melhoria das especificações e restrições normativas sobre o assunto. Nesse estudo foram realizadas simulações numéricas por meio do Método dos Elementos Finitos, com o programa EverFE 2.25 (em 3D) de estrutura típica de pavimento de concreto simples em corredor de ônibus quando foram então avaliados os tipos e magnitudes de desalinhamentos (rotações verticais e horizontais), tipos de base (cimentada e asfáltica) de apoio das placas, condições de aderência entre placas e base, bem como ocorrência ou não de gradientes de temperatura entre topo e fundo da placa. Os resultados evidenciaram a significativa contribuição da aderência entre a placa de concreto e a base para a redução das tensões de tração na flexão no concreto, mesmo quando as barras se encontrassem severamente desalinhadas e as placas sujeitas a diferenciais térmicos elevados.
  • Reliability analysis of truss structures considering complete failure
           paths and using the FLHB model

    • Abstract: abstract: The study of progressive collapse of structures using numerical models requires accurate modeling of geometrical nonlinearity and material failure behavior. Numerical models must demonstrate stability, such that localized member failures do not trigger numerical instabilities. Also, algorithms should be efficient, to limit the computational burden of analyzing multiple responses when considering the effects of uncertain loads, geometric and material variables. In this scientific domain, a comprehensive non-linear ductile-damage truss-element model has been recently presented by the authors. The model accounts for the geometrical and material nonlinearities observed during progressive collapse of structural systems. In this paper, the Felipe-Leonel-Haach-Beck (FLHB) model is calibrated to describe the response of Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC). Based on a limited number of UHPFRC experimental curves, statistics of FLHB model parameters are obtained. These are employed in the probabilistic analysis of failure paths of truss structures under progressive collapse. Monte Carlo Simulation and the First Order Reliability Method are employed in the probabilistic failure path analyses. Six application examples demonstrate the accuracy, robustness, and efficiency of the FLHB model in evaluation of failure paths of realistic structural systems.resumo: O estudo do colapso progressivo de estruturas, utilizando análise numérica, requer modelos precisos das não-linearidades geométrica e material. Modelos numéricos também precisam se mostrar estáveis, de forma que a falha localizada de um elemento não provoque instabilidades numéricas. Algoritmos precisam ser eficientes, de forma a possibilitar as análises repetitivas, necessárias para avaliar os efeitos das incertezas nas ações, na geometria e nos parâmetros de resistência dos materiais. Neste contexto, um modelo não-linear abrangente foi apresentado recentemente pelos autores, combinando análise plástica com um modelo de dano, para análise de treliças. O modelo leva em conta as não-linearidades material e geométrica observadas durante o colapso progressivo de estruturas hiperestáticas. Neste artigo, o modelo de Felipe-Leonel-Haach-Beck (FLHB) é calibrado para descrever a resposta do concreto de ultra-alto desempenho reforçado com fibras ou Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC). Com base em um número limitado de curvas experimentais para o UHPFRC, estatísticas dos parâmetros do modelo FLHB são obtidas. Estas são utilizadas em uma análise probabilística dos caminhos de falha de treliças sob colapso progressivo. Simulação de Monte Carlo e o Método de Confiabilidade de Primeira Ordem são empregados nas análises. A aplicação a seis estruturas-exemplo demonstram a precisão, robustez e eficiência do modelo FLHB em avaliar os caminhos de falha de treliças realísticas.
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762

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