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Experimental testing, numerical modelling and seismic strengthening of traditional stone masonry: comprehensive study of a real Azorian pier

机译:传统砌体的实验测试,数值模拟和抗震加固:对真实的亚速里亚墩的综合研究

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摘要

Stone masonry is one of the oldest building techniques used worldwide andit is known to exhibit poor behaviour under seismic excitations. In this context, this work aims at assessing the in-plane behaviour of an existing double-leaf stone masonry pier by experimental testing. Additionally, a detailed 3D finite element numerical analysis based on micro-modelling of the original pier is presented (fully describing the geometry and divisionof each individual elements, namely infill, blocks and joints) aiming at simulating the experimental test results. This numerical strategy can be seen as an alternative way of analysing this type of constructions, particularly useful for laboratory studies, and suitable for the calibrationof simplified numerical models. As part of a wider research activity, this work is further complemented with the presentation of an effective retrofit/strengthening technique (reinforced connected plaster) to achieve a significant improvement of its in-plane cyclic response which is experimentally verified in the results presented herein.
机译:砌石是世界上最古老的建筑技术之一,已知在地震激发下表现出不良的行为。在这种情况下,这项工作旨在通过实验测试来评估现有的双叶砌石墩的面内行为。此外,还提出了基于原始墩的微观模型的详细3D有限元数值分析(充分描述了各个独立单元的几何形状和划分,即填充,块和接缝),旨在模拟实验测试结果。这种数值策略可以看作是分析此类结构的另一种方法,对实验室研究特别有用,并且适合简化数值模型的校准。作为更广泛的研究活动的一部分,这项工作进一步得到了有效的改造/加固技术(增强连接灰泥)的介绍,以实现其面内循环响应的显着改善,这在本文提供的结果中得到了实验验证。

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