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Seismic evaluation of old masonry buildings. Part Ⅱ: Analysis of strengthening solutions for a case study

机译：旧砌体建筑的抗震评估。第二部分：案例研究的强化解决方案分析

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This paper describes the application of the iterative method described in Part Ⅰ (Cardoso R, Lopes M, Bento, R, Seismic Evaluation of Old Masonry Buildings. Part Ⅰ: Method Description and Application to a Case Study, Engineering Structures, 2005) to the seismic strengthening design of irregular block masonry structures. The method was applied to an old masonry building from the city of Lisbon, which includes a three-dimensional wood structure braced with diagonal elements, aiming at providing seismic resistance to the building. Three different strengthening solutions were defined, based on the collapse mechanism obtained. This paper presents the analysis performed for each solution and the discussion regarding its qualitatively and quantitatively effects in the seismic structural behaviour: the identification of the expected collapse mechanism after strengthening and the seismic intensity for which it occurs. This is necessary to define the more efficient and economic strengthening strategies.
机译：本文描述了第一部分中所述的迭代方法的应用（Cardoso R，Lopes M，Bento，R，旧砌体房屋的地震评估。第一部分：方法描述和案例研究，工程结构，2005年）。不规则砌体结构的抗震加固设计。该方法已应用于里斯本市的一幢老式砖石建筑，其中包括带有对角线元素的三维木结构，旨在为建筑物提供抗震性。根据获得的倒塌机理，定义了三种不同的加固解决方案。本文介绍了对每种解决方案进行的分析，并讨论了其在地震结构行为中的定性和定量影响：确定加固后的预期倒塌机制及其发生的地震强度。定义更有效和经济增强的策略是必要的。

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