Seismic Modeling
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. 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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2. FE Modeling and Seismic Performance Evaluation of Hybrid SMA-Steel RC Beam-Column Joints
Abstract Severe permanent deformations of buildings during earthquakes have been found as one of the major causes of the instability and failure of structures. The application of superelastic Shape Memory Alloy rebars at the plastic hinge region of reinforced concrete beam-column joints (SESMA-BCJs) can eliminate the seismic residual deformations. Such self-
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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3. Experimental and numerical modeling of horizontally-bent buried pipelines crossing fault slip
Abstract The behavior and response of pipelines subjected to slip fault movement is studied by numerical simulations as well as experimental setup. A finite element modeling is also developed via ABAQUS software. In this study, an artificial accelerogram is applied to the system and matched against the response spectrum according to the standard No. 2800 (Ir
Lat. Am. j. solids struct.. Publicado em: 08/04/2019
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4. Comparing blast-induced ground vibration models using ANN and empirical geomechanical relationships
Abstract Blasting remains as an economical and reliable excavation technique, but there are some environmental shortcomings such as the control of blast-induced vibration. The impacts of vibration over surrounding communities in a blast area have been investigated for decades and researchers have been using a myriad of empirical predictive attenuation equati
REM, Int. Eng. J.. Publicado em: 2018-03
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5. Finite Element Analysis of Reinforced Concrete Beam-Column Connections with Governing Joint Shear Failure Mode
Abstract Reinforced concrete (RC) beam-column connections especially those without transverse reinforcement in joint region can exhibit brittle behavior when intensive damage is concentrated in the joint region during an earthquake event. Brittle behavior in the joint region can compromise the ductile design philosophy and the expected overall performance of
Lat. Am. j. solids struct.. Publicado em: 2017-08
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6. Modelagem física de meios fraturados anisotrópicos e estudo da birrefringência sísmica em função dos parâmetros anisotrópicos / Physical modeling of anisotropic fractured media and study of seismic splitting as a function of the anisotropic parameters
Meios anisotrópicos fissurados ou fraturados têm sido amplamente investigados em muitos estudos teóricos e experimentais. Neste trabalho, realizamos uma série de medidas ultrassônicas objetivando investigar o comportamento de diferentes meios artificialmente anisotrópicos. Três questões foram abordadas: (1) estudo da birrefringência da onda S em fun
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/03/2012
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7. Finite element nonlinear analysis of high-rise unreinforced masonry building
A simple efficient algorithm based on compressive diagonal strength of unreinforced masonry walls is presented to determine capacity curve of unreinforced masonry building. The compressive strength is calculated based on a new close form solution. The new close form solution is determined based on predicted results using interface elements for modeling of mo
Lat. Am. j. solids struct.. Publicado em: 2012-10
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8. MODELAGEM 3D DE PRESSÃO DE POROS A PARTIR DE DADOS DE POÇOS / 3D PORE PRESSURE MODELING FROM WELL DATA
Tridimensional (3D) modeling of pore pressure gradient is usually based on seismic data and calibrated with well data. Tridimensional models based exclusively in well data are not common in the oil industry. However, well data are regulary used to derive unidimensional models of the pore pressure gradient. The current work presents 3D models of pore pressure
Publicado em: 2009
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9. MODELAGEM DO COMPORTAMENTO PÓS-SISMO DE UMA BARRAGEM DE REJEITO / MODELING THE POST- SEISMIC BEHAVIOR OF A TAILING DAM
Os danos causados em geo-estruturas devido à ação de carregamentos dinâmicos gerados por terremotos não ocorrem necessariamente durante o evento, tendo sido observado em campo que muitos acontecem após o término da excitação. Esta dissertação tem como objetivo apresentar um fluxo de trabalho que compreenda o estado da prática da avaliação compl
Publicado em: 2009
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10. Time-lapse seismic modeling assisted by numerical reservoir simulation of water and gas flooding scenarios in oil reservoirs
No presente trabalho, fazendo-se uso de uma abordagem integrada de simulação de fluxo em reservatórios, física de rochas e modelagem sísmica time-lapse , investigam-se os principais efeitos das barreiras de permeabilidade na resposta sísmica, através da simulação de injeção de fluidos. Com o propósito de analisar os efeitos, realizaram-se alguns
Revista Brasileira de Geofísica. Publicado em: 2008-06
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11. MODELAGEM SÍSMICA EM ARENITOS: EFEITO DA DISPERSÃO DA VELOCIDADE E DO TIPO DE FLUIDO / SANDSTONE SEISMIC MODELING: EFFECTS OF VELOCITY DISPERSION AND FLUID TYPE
The evaluation of reservoir dynamics during production through time-lapse interpretation has reached a substantial importance in the petroleum industry, mainly in sandstones. This evaluation presents many challenges, mainly concerned to unmask the overlapping of different effects in seismic data due to reservoir changes. Several factors affect seismic proper
Publicado em: 2008
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12. FAULT MESHING GENERATION IN SEISMIC DATA BY COMPETITIVE LEARNING / GERAÇÃO DE MALHAS DE FALHAS EM DADOS SÍSMICOS POR APRENDIZADO COMPETITIVO
Manual fault mapping from 3D seismic data is a time-consuming task. A plethora of seismic attributes has been proposed to enhance the discontinuity measures associated with faults. However, faults viewed through these attributes appear more like trends than well-defined, continuous surfaces, posing obstacles to the automation of the fault modeling process. T
Publicado em: 2008