Encontrados 13 documentos, a visualizar página 1 de 2
Simplified indexes for the seismic assessment of masonry buildings : internatio...
Lourenço, Paulo B.; Oliveira, Daniel V.; Leite, João C.; Ingham, Jason; Modena, C.; Porto, F. daHeritage masonry buildings are particularly vulnerable to earthquakes because they are deteriorated and damaged, they were built with materials with low resistance, they are heavy and the connections between the various structural components are often insufficient. The present work details a simplified method of seismic assessment of large span masonry structures that was applied to a database of forty-four mon...
Statistical assessment of damage to churches affected by the 2010-2011 Canterbu...
Leite, João C.; Lourenço, Paulo B.; Ingham, JasonThe Canterbury Region of New Zealand experienced an extensive earthquake sequence during 2010-2011, with two particularly severe events being on 4 September 2010 and 22 February 2011. The presented work entails a statistical analysis of the data collected for 112 churches in the affected region, including in situ damage observed by the authors and the structural assessment classification assigned by local autho...
Seismic assessment of St. James church by means of pushover analysis : before a...
Araújo, Ana S.; Lourenço, Paulo B.; Oliveira, Daniel V.; Leite, João C.The paper presents a numerical study for the seismic assessment of the St James Church in Christchurch, New Zealand affected by the recent 2011 earthquake and subsequent aftershocks. The structural behaviour of the Church has been evaluated using the finite element modelling technique, in which the nonlinear behaviour of masonry has been taken into account by proper constitutive assumptions. Two numerical model...
Using simplified indices to forecast the seismic vulnerability of New Zealand u...
Ingham, Jason; Lourenço, Paulo B.; Leite, João C.; Castelino, Saahil; Colaco, EdlynUnreinforced masonry churches are particularly vulnerable to earthquakes because they are often deteriorated and damaged, they were built with comparatively low strength materials, they are heavy, and the connections between the various structural components are often insufficient to resist loads generated during earthquakes. A simplified method for seismic assessment of large span masonry churches is presented...
Post-earthquake numerical assessment and reinforcement of St James Church, New ...
Araújo, A. F.; Lourenço, Paulo B.; Oliveira, Daniel V.; Leite, João C.This paper presents a numerical study on the seismic assessment and reinforcement of St James Church, affected by the 2011 New Zealand Earthquake. Numerical analyses were performed using a finite element model including the structural damage of the Church. The numerical model was calibrated against experimental results obtained from the dynamic identification tests carried out in situ. Nonlinear pushover analys...
Post-earthquake seismic analysis of St James church, New Zealand
Araújo, A. F.; Lourenço, Paulo B.; Oliveira, Daniel V.; Leite, João C.The paper presents a numerical study of the seismic assessment of the St James Church in Christchurch, New Zealand affected by the most recent 2011 earthquake and subsequent aftershocks. Dynamic identification tests, as well as a careful visual inspection, were performed in the Church in order to understand its structural behaviour after the seismic action. The seismic assessment of the Church has been done usi...
Solutions for infilled masonry buildings : shaking table tests
Leite, João C.; Lourenço, Paulo B.Infilled masonry can be seen as an old research issue, but recent seismic activities, such as the 2009 Aquila earthquake in Italy, showed seismic engineers and structural designers that current infill solutions may not work as expected. In this seismic action, the analysis of the damages in buildings constructed in the last 20 years, designed according to modern standards, may lead to the worrying conclusion th...
Ensaios em mesa sísmica de edifícios de betão armado com paredes de alvenaria d...
Leite, João C.; Pereira, Manuel Fernando Paulo; Candeias, Paulo; Costa, Alfredo Campos; Lourenço, Paulo B.A influência das paredes de alvenaria de enchimento nas estruturas porticadas de betão armado pode ser visto como algo já estudado exaustivamente, mas as atividade sísmicas recentes, como em 2009 em Itália, mais concretamente em Aquila, demonstraram que as soluções adotadas pelos projetistas ainda são ineficientes. Paredes de alvenaria de enchimento em edifícios construídos nas últimas duas décadas, com base em...
Comportamento das paredes não estruturais a ações sísmicas
Lourenço, Paulo B.; Pereira, Manuel Fernando Paulo; Leite, João C.; Costa, Alfredo CamposA análise dos resultados dos sismos recentes relativamente a edifícios de betão armado com paredes de enchimento em alvenaria é preocupante. As imagens de expulsões para fora do plano e dano excessivo no plano são recorrentes e são também testemunhos de práticas erradas, soluções inadequadas e / ou projeto deficiente. A normativa europeia, a aplicar num futuro muito próximo, responsabiliza o projetista de estru...
Performance of masonry buildings and churches in the 22 february 2011 christchu...
Dizhur, Dmytro; Ingham, Jason; Moon, Lisa; Griffith, Mike; Schultz, Arturo; Senaldi, Ilaria; Magenes, Guido; Dickie, Jocelyn; Lissel, ShelleyAs part of the „Project Masonry‟ Recovery Project funded by the New Zealand Natural Hazards Research Platform, commencing in March 2011, an international team of researchers was deployed to document and interpret the observed earthquake damage to masonry buildings and to churches as a result of the 22nd February 2011 Christchurch earthquake. The study focused on investigating commonly encountered failure patter...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||