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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Seismic vulnerability of roof systems combining URM gable walls and timber diaphragms
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Seismic vulnerability of roof systems combining URM gable walls and timber diaphragms

机译：屋顶系统的地震脆弱性结合URM山墙墙和木材膜片

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摘要

Typical low-rise masonry buildings consist of unreinforced masonry (URM) walls covered with various timber roof configurations generally supported or finished by masonry gables. Post-earthquake observations and experimental outcomes highlighted the large vulnerability of the URM gables to the development of overturning mechanisms, both because of the inertial out-of-plane excitation and the in-plane timber diaphragm deformability. This paper presents the static and dynamic experimental seismic performance of three full-scale roofs tested via quasi-static cyclic and shake table tests. Two of them were tested as part of a whole full scale one-storey and two-storey building. A single-degree-of-freedom (SDOF) numerical model is calibrated against experimental data and proposed for the analysis of this roof typology's dynamic behaviour. Several sets of analyses were conducted to assess the vulnerability of these structural components and to study the effect of the whole building's characteristics (eg, number of storeys and structural stiffness and strength) on the seismic performance of this roof typology.
机译：典型的低层砌体建筑包括覆盖着通常支持或由砖石玻璃的各种木材屋顶配置覆盖的未原始的砌体（URM）墙壁。地震后观测和实验结果强调了URM Gables对推翻机构的发展的大量脆弱性，无论是惯性外平面励磁和面内木膜膈肌可变形性。本文介绍了通过准静态循环和摇动台测试测试的三个全尺寸屋顶的静态和动态实验抗震性能。其中两个被测试为整个全级单层和两层建筑的一部分。自由度（SDOF）数值模型被校准针对实验数据，并提出分析该屋顶类型的动态行为。进行了几套分析，以评估这些结构部件的脆弱性，并研究整个建筑物的特征（例如，楼层数量和结构刚度和强度）对该屋顶类型的地震性能的影响。

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