In-Plane Experimental Behavior of Stone Masonry Walls under Cyclic Loading
In-Plane Experimental Behavior of Stone Masonry Walls under Cyclic Loading
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DOI：
10.1061/(asce)st.1943-541x.0000053
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发表时间：
2009-10
期刊：
影响因子：
--
通讯作者：
G. Vasconcelos;P. Lourenço
中科院分区：
文献类型：
--
作者：
G. Vasconcelos;P. Lourenço
石砌是现存最古老的建筑材料，在世界各地使用，特别是在令人印象深刻的历史建筑中，作为古代文化成就的证据。石墙通常被理解为能够承受压缩的结构元件，但它们也可以作为抵抗平面风和地震作用的元件。尽管如此，文献中只有少数关于循环荷载下石砌体墙平面内行为的实验研究。本工作的目的是获得一个更好的了解在循环面内荷载作用下的石砌石墙的行为。为此，23墙进行了测试，在不同的垂直正应力水平和不同的债券安排，代表典型的墙壁类型。试验结果表明，这两个因素对砌体墙的面内受力性能起着重要的作用。特别是，延性和能量耗散显著依赖于石头的纹理排列。研究还表明，优质石砌体墙具有较大的非线性变形能力，且损伤程度适中。最后，它表明，由简化的分析方法提供的石墙的侧阻力与实验结果相当吻合。
Stone masonry is the oldest building material that survived until today, being used all over the world, particularly in impressive historic structures as an evidence of the achievements of ancient cultures. Stone walls are usually understood as structural elements able to withstand compression but they can also act as elements that provide resistance against in-plane wind and earthquake actions. Still, only a few experimental investigations are available in the literature, regarding the in-plane behavior of stone masonry walls under cyclic loading. The present work aims at obtaining a better insight on the behavior of stone masonry walls under cyclic in-plane loads. For this purpose, 23 walls were tested under different vertical normal stress level and different bond arrangement that represent typical walls typologies. The experimental results indicate these two factors play an important role on the in-plane behavior of stone masonry walls. In particular, ductility and energy dissipation depend significantly on the textural arrangement of the stones. It is also demonstrated that good quality stone masonry walls exhibit large nonlinear deformation capacity, with moderate damage levels. Finally, it is shown that the lateral resistance of stone walls provided by simplified analytical methods agrees reasonably well with the experimental results.