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首页> 外文期刊>Journal of Earthquake Engineering >Quasi-static Cyclic Tests Of Two U-shaped Reinforced Concrete Walls
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Quasi-static Cyclic Tests Of Two U-shaped Reinforced Concrete Walls

机译：两座U形钢筋混凝土墙的准静态循环试验

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摘要

U-shaped or channel-shaped walls are frequently used as lateral strength providing members in reinforced concrete (RC) buildings since their form does not only provide strength and stiffness in any horizontal direction but is also well suited to accommodate elevator shafts or staircases. Despite this popularity, experimental results on the seismic behavior of U-shaped walls are scarce. For this reason a research program with the objective to provide additional experimental evidence for such walls under seismic loading was developed. It included quasi-static cyclic testing of two U-shaped walls at the structural engineering laboratories of the ETH Zurich. The walls were built at half-scale and designed for high ductility. The main difference between the two walls was their wall thickness. The project was chiefly focusing on the bending behavior in different directions and therefore the walls were subjected to a bi-directional loading regime. This article discusses the design of the test units, the test setup and the test predictions. Finally the main results are summarized in terms of failure mechanisms and force-displacement hystereses.
机译：U形或通道形的壁经常用作钢筋混凝土（RC）建筑物中的侧向强度提供构件，因为它们的形式不仅可在任何水平方向上提供强度和刚度，而且还非常适合容纳电梯井道或楼梯。尽管很受欢迎，但有关U形墙抗震性能的实验结果却很少。因此，开发了旨在为这种墙在地震荷载下提供额外实验证据的研究计划。它包括在苏黎世联邦理工学院的结构工程实验室对两个U形墙进行的准静态循环测试。墙壁以半比例建造，并具有高延展性。两壁之间的主要区别是壁厚。该项目主要关注不同方向的弯曲行为，因此，墙体承受了双向荷载。本文讨论了测试单元的设计，测试设置和测试预测。最后，根据失效机理和力位移滞后现象总结了主要结果。

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