Reinforced Soil Structures
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Analytical determination of the vibration frequencies and buckling loads of slender reinforced concrete towers
Abstract This study focused on improving the design of slender structures with reinforced concrete (RC) telecommunication towers as the main application. Analytical procedure based on Rayleigh’s method to compute the first natural vibration frequency and the critical buckling load was development. All the nonlinearities present in the system were considere
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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2. Static Limit Analysis of Reinforced Soil Structures by a Simple Finite Element and Second-Order Cone Programming
Abstract To discretize reinforced soil structures in plane strain and predict their collapse load, a simple three-node triangular finite element is formulated based on the static theorem of the limit analysis. The element satisfies the equilibrium equations and the mechanical boundary conditions in a weak sense. A modified Mohr-Coulomb yield surface is adopt
Lat. Am. j. solids struct.. Publicado em: 2017
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3. Redundancy Factors for the Seismic Design of Ductile Reinforced Concrete Chevron Braced Frames
Abstract In this paper the authors summarize the results of a study devoted to assess, using nonlinear static analyses, the impact of increasing the structural redundancy in ductile moment-resisting reinforced concrete concentric braced frames structures (RC-MRCBFs). Among the studied variables were the number of stories and the number of bays. Results obtai
Lat. Am. j. solids struct.. Publicado em: 2016-11
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4. DYNAMIC ANALYSIS OF A GEOSYNTHETIC REINFORCED EMBANKMENT / ANÁLISE DINÂMICA DE UM ATERRO REFORÇADO COM GEOSSINTÉTICOS
The main objective of this research is to investigate the seismic response of a soil slope reinforced with geosynthetics, located in an active seismic region of Peru. The 10.40m high slope was reinforced with 9 horizontal layers of geosynthetics 10m long. The aspects studied in this work are related to the slope static stability, the dynamic response of the
Publicado em: 2008
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5. Análise do comportamento de estacas strauss submetidas a carregamento horizontal no solo da região de Londrina - PR
In Londrina city, Strauss piles are frequently used as retaining structure for building basement excavation, being submitted to horizontal load. However, the projects of such retaining structures are usually conducted using design methods that do not take the concrete cracking of pile transversal section and the properties of lateritic tropical soil into acc
Publicado em: 2008
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6. Use of recycled construction and demolition wastes (RCDW) as backfill of reinforced soil structures / Aplicação de resíduos de construção e demolição reciclados (RCD-R) em estruturas de solo reforçado
O intenso crescimento populacional traz consigo uma preocupação ambiental, já que, diante da necessidade de exploração dos recursos naturais, a adoção de políticas de reciclagem faz-se fundamental para alcançar o desenvolvimento sustentável. Neste cenário, apesar dos resíduos de construção e demolição (RCD) possuírem alto potencial de recicl
Publicado em: 2007
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7. Relevo, processos geoecológicos e sócio/reprodutores e a fragilidade ambiental da bacia do ribeirão Piracicamirim/SP / Relief, geoecological processes, social-reproducing processes and environmental fragility in the Piracicamirim Basin/SP
This study had the objective of showing that the shapes of the relief seen in the Piracicamirim Basin/SP translate the genetic dependence of all set of structures that articulate themselves in the geosystem of the landscape of this geographic unit, having thus great importance as indicators of the precedent dynamic and of its actual situation, this been the
Publicado em: 2007
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8. Comportamento carga-alongamento de geotêxteis não tecidos submetidos à tração confinada
The use of geosynthetics in reinforced soil structures has shown a marked increase due to its simplicity, speed and cost-effectiveness. The choice of the geosynthetics depends on the compatibility between the mechanical properties of the geosynthetics and the characteristics of the project. The tensile force mobilisation in the reinforcement depends on its t
Publicado em: 2006
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9. ANÁLISE ELASTOPLÁSTICA VIA MEF DE PROBLEMAS EM SOLOS REFORÇADOS
Reinforced earth structure is a composite system that involves basically three components: the soil, the reinforcement and the soil-reinforcement interface. The performance of the reinforced structure will depend on the interaction among these components. This interaction can be studied by monitoring a sufficiently large number of full scale field tests, lab
Publicado em: 2006
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10. ANÁLISE NUMÉRICA DO ALTEAMENTO DE BARRAGENS DE TERRA / NUMERICAL ANALYSIS OF RAISING EARTH DAMS
One of the activities related to dam constructions involves the raising of the existent structure, normally done with the objective of increasing the water storage capacity of the reservoirs, improving the safety factor of the embankment slopes or to ensure a better protection against possible water flooding. The raising of an earth dam can be predicted in t
Publicado em: 2005
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11. Evaluation of the use of the marginal soils in reinforced soil structures / Avaliação do uso de solos não convencionais em estruturas de solo reforçado
As estruturas de solo reforçado tornaram-se uma alternativa eficiente para a construção de aterros e muros de contenção. No entanto, o seu uso é limitado pelas especificações técnicas, que recomendam apenas materiais granulares, por apresentarem alta resistência e capacidade de livre drenagem. Todavia, nem sempre se dispõem deste tipo de material
Publicado em: 2005
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12. Estudo da interação solo-geogrelha em testes de arrancamento e a sua aplicação na análise e dimensionamento de maciços reforçados / A soil-geogrid interaction study on pullout tests and its application on analysis and designing of reinforced soil structures
O conhecimento dos mecanismos de interação entre o solo e os geossintéticos é fundamental para o dimensionamento de obras em solo reforçado. Entretanto, em função das diferentes formas geométricas das superfícies das inclusões, a interação pode ocorrer de maneiras distintas. Para as geogrelhas, o arrancamento representa o mecanismo de interação
Publicado em: 2003