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Seismic performances of modern unreinforced thermal insulation clay blocks masonry houses

机译：现代无筋保温黏土砌块房屋的抗震性能

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摘要

In the scope of the transnational access activities of the European research project SERIES, the Laboratório Nacional de Engenharia Civil (LNEC) has provided access to its 3D shaking table to the international construction company Wienerberger AG and to a group of European experts, in order to perform full-scale seismic tests on an industrial solution for buildings using a modern unreinforced thermal insulation clay block masonry structure. Such solution represents a very common construction method in Central Europe but, although some cyclic shear test results are available, its effective dynamic response under seismic events still requires experimental validation. For this purpose, two full-scale mock-ups with different geometries were tested on the 3-D shaking table using a series of seismic records with increasing intensity. The first mock-up is plan-regular, while the second one is designed so as to trigger some torsional effects. This paper summarizes the most relevant experimental results regarding the structural response of the specimens, e.g., the dynamic response evolution, the collapse mechanism identified and the maximum drift values measured. It also focuses on two different easy modelling strategies, i.e. simple model according to a combined Eurocode 6/Eurocode 8 approach and equivalent frame approach. It finally compares the predictions obtained from these two methods with the experimental results.
机译：在欧洲研究项目SERIES的跨国访问活动范围内，国家民用实验室（LNEC）向国际建筑公司Wienerberger AG和一组欧洲专家提供了3D振动台的使用权，以便使用现代的非增强型隔热粘土砖砌体结构，对建筑物的工业解决方案进行全面的地震测试。这种解决方案代表了中欧非常普遍的施工方法，但是，尽管可以获得一些循环剪切试验结果，但其在地震事件下的有效动力响应仍然需要实验验证。为此，使用一系列强度不断增加的地震记录，在3-D振动台上测试了具有不同几何形状的两个全尺寸模型。第一个模型是按规则绘制的，而第二个模型的设计是为了触发一些扭转效果。本文总结了有关样品结构响应的最相关的实验结果，例如动态响应演变，确定的坍塌机理和测得的最大漂移值。它还着重于两种不同的简单建模策略，即根据Eurocode 6 / Eurocode 8方法和等效框架方法组合而成的简单模型。最后，将这两种方法的预测结果与实验结果进行了比较。

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