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首页> 外文期刊>Bulletin of earthquake engineering >Strength, deformation capacity and failure modes of RC walls under cyclic loading
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Strength, deformation capacity and failure modes of RC walls under cyclic loading

机译：循环荷载作用下钢筋混凝土墙的强度，变形能力及破坏模式

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Past models for the cyclic strength and deformation capacity of reinforced concrete walls are evaluated and new ones are developed using results from 866 wall tests. On the basis of the observed damage, the failure mode is classified into the following categories: in flexure, in diagonal tension, in diagonal compression, or in sliding shear. Among the past models evaluated are those proposed by two of the authors: (a) for the cyclic strength in diagonal tension after flexural yielding or in diagonal compression and (b) for the ultimate chord rotation capacity under cyclic flexure, which were adopted in Eurocode 8-Part 3 and in fib Model Code 2010. Walls with height-to-length ratio < 1.2 ("squat") are considered separately: past models are evaluated and two new ones are proposed on the basis of 321 cyclic tests. Past models for sliding shear strength are modified, using the results from 55 cyclic tests. The predictions for the failure mode and the cyclic strength and/or deformation capacity agree well with the tests.
机译：评估了过去钢筋混凝土墙的循环强度和变形能力的模型，并使用866墙试验的结果开发了新模型。根据观察到的损坏，将破坏模式分为以下几类：弯曲，斜向拉伸，斜向压缩或滑动剪切。在过去评估的模型中，有两位作者提出了这些模型：（a）屈服屈服后或对角压缩后对角张力的循环强度，以及（b）循环挠曲下的极限弦旋转能力，在欧洲规范中采用8部分第3部分和fib模型代码2010。壁高比<1.2（“下蹲”）的墙被单独考虑：对过去的模型进行了评估，并在321个循环试验的基础上提出了两个新模型。使用55个循环试验的结果，修改了过去的滑动抗剪强度模型。破坏模式，循环强度和/或变形能力的预测与测试非常吻合。

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