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Idalina Veludo Paula Teves-Costa Pierre-Yves Bard 《Bulletin of Earthquake Engineering》2013,11(2):423-453
Angra do Heroísmo, located in Terceira Island, is the main town of the Central Group of Azores Archipelago and it is classified as World Heritage by Unesco. The preservation of this patrimony, located inside a seismic region, includes the implementation of a policy to protect it against earthquakes. The development of credible damage scenarios could help this objective, as they can be used in prevention measures to minimize the impact of future earthquakes. Two methods were used for seismic damage estimation: the capacity spectrum method and a new method, based on the direct response of a 1D non-linear oscillator to simulate the building seismic performance. Both methods seem to overestimate the damages for the near sources, but this could be due to the empirical model used to estimate the input ground motion. Comparison with the damage observed after the January 1st, 1980 earthquake show a large discrepancy with an underestimation bias, which can be explained, mainly, by the difference of building performance and on the plausible hypothesis of 2D site effects. 相似文献
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Soil characterization for seismic damage scenarios purposes: application to Angra do Heroísmo (Azores) 总被引：1，自引：1，他引：0
Angra do Heroismo, the main town of Terceira Island in the Azores Archipelago, was hit in 1980 by a 7.2 magnitude earthquake that caused great destruction in the central part of the town. Taking into consideration the high seismic hazard of the region and the cultural and social importance of Angra do Heroísmo, the elaboration of damage scenarios is of particular importance to implement measures for preserve and protect the town against future earthquakes. The first step is to perform microzonation studies in order to characterize the soil seismic behaviour. Taking into consideration the available geologic, geotechnical and geophysical information, a detailed soil characterization was performed based on the results from numerical modelling and the analysis of microtremor experimental measurements. Nine different soil profiles were identified, characterized and classified. Discussion on the detailed soil classification and the Eurocode 8 soil classification is presented. This study shows that even with an available code, microzonation studies must be developed in order to identify differences on soil behaviour inside the interested area. It shows also that the use of experimental measurements presents a great help on soil characterization. The obtained detailed classification will be used on the estimation of damage scenarios for Angra do Heroísmo. 相似文献
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Idalina Baptista 《Urban geography》2013,34(5):590-611
This article contributes to the ongoing scrutiny of the travels of critiques of neoliberalism in urban studies. Using the case of a state-led urban regeneration program implemented in Portugal since 2000, the Polis Program, the article weighs in on meta-analytical discussions about the hegemonic status of neoliberalism as a theoretical concept and as an analytical framework and on discussions about the travels of dominant critiques of neoliberalism beyond the sites of epistemological production. The article argues that the current analytical overinvestment in neoliberalism may obscure important drivers of contemporary urbanization and that recourse to a diversity of concepts may be a more profitable line of inquiry. The article suggests that current efforts at epistemological renewal within urban studies benefit from taking up cities in the “borderlands” of urban theory as relevant cases in their own right. The article offers further considerations on the purchase of neoliberalism in contemporary urban literature.[Key words: neoliberalism, critiques, urban theory, urban planning and policy, Portugal, Polis Program] 相似文献
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