Suspension Bridge
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. The Challenges of Rehabilitating the Hercilio Luz Suspension Bridge
Abstract The Hercílio Luz suspension bridge, built in 1926, has been out of service since 1991 due to high corrosion levels and structural element impairment. A complete rehabilitation project was developed which included the replacement of the impaired items and foundation strengthening. For this, an auxiliary structure was employed to support the central
Lat. Am. j. solids struct.. Publicado em: 2017-03
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2. Strand Tension Control in Anchor Span for Suspension Bridge Using Dynamic Balance Theory
Abstract Strand tension control is essential in suspension bridge safety. However, few quantitative studies have examined the bending rigidity and boundary condition behavior of strands in the anchor span of suspension bridges because of their special structure and complex configuration. In this paper, a new calculation method for strand tension is explored
Lat. Am. j. solids struct.. Publicado em: 2016-10
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3. Wind tunnel test for vortex-induced vibration of vehicle-bridge system section model
Vortex-induced vibration of bridges happens at a relatively low wind speed and while vehicles often run on a bridge at that wind speed. Thus, it is necessary to study how the vehicles influence vortex-induced vibration of vehicle-bridge systems. Based on the project of Shanghai Bridge over Yangtse River, the wind tunnel test for vortex-induced vibrations of
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-06
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4. Parábola e catenária: história e aplicações. / Parabola and Catenary: history and applications.
Ao contrário da catenária, o estudo da parábola é encontrado com freqüência nos livros didáticos de matemática. Dois livros didáticos foram analisados para esta pesquisa: o livro de Olavo Freire de 1894, que associa o formato do cabo pênsil ao de uma parábola, e o livro da década de 1970 de Osvaldo Sangiorgi, que relaciona à figura de um balanç
Publicado em: 2008
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5. Metodologia para atualização de modelos numéricos de pontes com base em dados experimentais
Bridges are structures that due their immense dimension, long spans, long service life and structural complexity, need a regular inspection and condition assessment to guarantee their serviceability, safety and reliability. The modal model of the bridge based on dynamic measurement has been a tool to evaluate these structures. A system identification procedu
Publicado em: 2007
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6. Ana-PSp: a computational system for aeroelastic analysis of suspended bridges for reduced mathematical models. / ANA-PSp: um sistema computacional para análise aeroelástica de pontes suspensas por modelos matemáticos reduzidos.
As características arquitetônicas e o desempenho estrutural de pontes suspensas, estaiadas ou pênseis, têm determinado a sua crescente utilização em obras de arte destinadas a vencer grandes vãos. Essa utilização crescente que ocorreu no mundo nas últimas décadas se repete agora nos últimos anos no país. Várias dessas obras estão em execução
Publicado em: 2007
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7. The use of GPS as control instrument of dynamic displacements of civil structures / O uso do GPS como instrumento de controle de deslocamentos dinâmicos de obras civis - aplicação na área de transportes
Este trabalho apresenta o desenvolvimento de metodologia para avaliar a utilização do Sistema de Posicionamento Global (GPS) como ferramenta de pesquisa no estudo do comportamento dinâmico de obras viárias. Para ser caracterizado como um instrumento de medição, foi estudada a potencialidade de um método, que se fundamenta numa forma específica de col
Publicado em: 2004
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8. Suicide from the Clifton Suspension Bridge in England.
OBJECTIVES: To examine the epidemiology of suicide by jumping from the Clifton Suspension Bridge and its impact on local patterns of suicide. DESIGN: Case-control study of falls from the bridge (1974-93) matched by age and sex with those using other methods of suicide. Routine OPCS mortality statistics for Bristol and District Health Authority. SETTING: The
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9. Molecular cloning, expression, and induction of berberine bridge enzyme, an enzyme essential to the formation of benzophenanthridine alkaloids in the response of plants to pathogenic attack.
The berberine bridge enzyme [(S)-reticuline: oxygen oxidoreductase (methylene-bridge-forming), EC 1.5.3.9] is a vesicular plant enzyme that catalyzes the formation of the berberine bridgehead carbon of (S)-scoulerine from the N-methyl carbon of (S)-reticuline in a specific, unparalleled reaction along the biosynthetic pathway that leads to benzophenanthridin
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10. Suicide from the Clifton Suspension Bridge in England.
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11. DWWA, a Novel Protein Containing Two WW Domains and an IQ Motif, Is Required for Scission of the Residual Cytoplasmic Bridge during Cytokinesis in Dictyostelium
We have identified a novel gene, dwwA, which is required for cytokinesis of Dictyostelium cells on solid surfaces. Its product, Dd WW domain containing protein A (DWWA), contains several motifs, including two WW domains, an IQ motif, a C2 domain, and a proline-rich region. On substrates, cells lacking dwwA were multinucleated and larger and flatter than wild
The American Society for Cell Biology.
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12. Factors Influencing Adherence of Staphylococcus aureus to Influenza A Virus-Infected Cell Cultures
A quantitative radioassay was used to study the factors affecting the adherence of 3H-labeled Staphylococcus aureus 1071 to Madin-Darby canine kidney cells, either uninfected or infected with the human FM1 strain of influenza A virus. Enhanced adherence to virus-infected cell cultures was independent of nonspecific factors—hydrophobicity, surface charge, a