Seismic Analysis
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure
Abstract Mudflow is often associated with seismic activities. The present study applied a seismic based detection of the surface waves generated by the mudflow of Brumadinho dam collapse using records of Brazilian Seismographic Network. The signal envelope and time-frequency spectrograms of the mudflow signals were used in the analysis. As a result, the mudf
REM, Int. Eng. J.. Publicado em: 2020-09
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2. Comparative analysis of normative provisions for seismic design and detailing of reinforced concrete structures
Resumo O objetivo principal deste trabalho é fazer uma análise comparativa entre os métodos e considerações da norma brasileira ABNT NBR 15421:2006 e as provisões do ASCE/SEI 7 e do Eurocódigo 8, quanto ao dimensionamento sísmico de estruturas. São verificadas as similaridades e as diferenças entre as instruções normativas, quanto à aplicação
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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3. Nonlinear static analysis of a pile-supported wharf
Resumo O objetivo deste artigo é desenvolver uma análise estática não-linear através de um estudo de caso de um cais sobre estacas situado em uma nova área portuária para petroleiras. A atividade sísmica da área é muito intensa com uma aceleração máxima do solo de 0.55 g. Por esta razão, é muito importante analisar o comportamento estrutural n
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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4. Effects of soil-structure interaction in seismic analysis of buildings with multiple pressurized tuned liquid column dampers
Abstract In this paper soil-structure interaction (SSI) effects are investigated while an array of Pressurized Tuned Liquid Column Dampers (PTLCD) is employed for seismic vibration control of buildings. This device represents the most general case of a passive damper, with different reduction options to other control devices obtained by simplifying the invol
Lat. Am. j. solids struct.. Publicado em: 12/09/2019
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5. Beam-Column Joints Reinforcement Detailing Adequacy in Case of a Corner Column Loss-Numerical Analysis
Abstract This study investigates the behavior of reinforced concrete (RC) beam-column joints at the corner panel after a ground corner column loss scenario. The ductility of a frame is dependent on the ductility of its components, particularly its joints. Deficiency in joints performance can be related to an unexpected event. For example, the removal of a gr
Lat. Am. j. solids struct.. Publicado em: 15/08/2019
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6. Damage index analysis of prefabricated segmental bridge columns under cyclic loading
Abstract The damage index is usually applied to evaluate the damage states of bridge structures, which is the basis of structural fragility study. The present study investigates the seismic damage index of the prefabricated segmental bridge columns (PSBC) under cyclic loading by theoretical and numerical analysis. Based on the previous pseudo-static experime
Lat. Am. j. solids struct.. Publicado em: 03/12/2018
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7. Experimental and numerical study of I-shape slit dampers in connections
Abstract This paper proposes a new beam to column connection which has slit dampers to increase ductility and moment capacity of structures. After Northridge and Kobe earthquakes, many researchers have tried to achieve more ductile connections. Ductility of connections causes to dissipate more energy before failure of connections. Also, some researchers have
Lat. Am. j. solids struct.. Publicado em: 14/11/2018
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8. Analysis of a tuned liquid column damper in non-linear structures subjected to seismic excitations
Abstract The behavior of the tuned liquid column damper (TLCD) is analyzed in the control of non-linear structures subjected to random seismic excitations. The structure is modeled as a system of one degree of freedom with incursion in the non-linear range. The Bouc-Wen hysteretic model is used to model the non-linear behavior of the structure. A stationary
Lat. Am. j. solids struct.. Publicado em: 19/07/2018
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9. Seismic Performance of Post-Northridge Welded Connections
Abstract Post-Northridge welded connections are widely used in engineering projects as lateral-force-resisting systems. In this study, we aim to assess the cyclic performance of the post-Northridge welded connections to compare the connections with each other. For this purpose, we focus on Welded Unreinforced Flange – Welded Web (WUF-W), Welded Flange Pla
Lat. Am. j. solids struct.. Publicado em: 26/04/2018
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10. Processing of large offset data: experimental seismic line from Tenerife Field, Colombia
ABSTRACT: Exploration seismology provides the main source of information about the Earth’s subsurface, which in many cases can be presented as a simple model of horizontal or near-horizontal layers. After the seismic acquisition step, conventional seismic processing of reflection data provides an image of the subsurface by using information about the refle
Braz. J. Geol.. Publicado em: 08/03/2018
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11. Modelling of Rocking and Sliding Effects in the Seismic Analysis of a Free-Standing Column
Abstract A study on the seismic response of a free-standing marble column, including rocking and sliding effects, is presented in this paper. The rocking-sliding model implemented for the development of the analyses corresponds to the basic theoretical and numerical simulation of the dynamic phenomenon. The assessment procedure adopted for the application of
Lat. Am. j. solids struct.. Publicado em: 2017-10
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12. Marine substrate response from the analysis of seismic attributes in CHIRP sub-bottom profiles
Resumo O presente trabalho tem por objetivo apresentar uma avaliação da resposta dos atributos sísmicos (Amplitude Instantânea, Amplitude RMS, Energia e Frequência Instantânea) em diferentes tipos de substratos marinhos, correlacionando-os com características sedimentológicas das amostras coletadas. Foram analisados perfis sísmicos obtidos com um pe
Braz. j. oceanogr.. Publicado em: 2017-09