Cyclic tensile-compressive tests on thin concrete boundary elements with a single layer of reinforcement prone to out-of-plane instability
Cyclic tensile-compressive tests on thin concrete boundary elements with a single layer of reinforcement prone to out-of-plane instability
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对容易出现平面外不稳定的单层钢筋的薄混凝土边界单元进行循环拉压试验
DOI：
10.1007/s10518-017-0228-1
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发表时间：
2018
影响因子：
4.6
通讯作者：
K. Beyer
中科院分区：
文献类型：
--
作者：
Angelica Rosso;L. A. Jimenez;João Pacheco de Almeida;Aydee Patricia Guerrero Zúñiga;C. Blandón;R. Bonett;K. Beyer
拉丁美洲国家对住宅的需求日益增长，导致建造钢筋混凝土建筑，墙壁厚度低至8-10厘米。这种墙通常只有单层垂直钢筋，因此特别容易发生平面外破坏。为了研究相应墙体边界单元的响应，进行了12根单层竖向钢筋混凝土构件的拉压循环试验。其目的是深入了解壁的不稳定性和面外破坏的参数，即厚度，配筋率和偏心率的纵向钢筋相对于构件轴线。本文总结了测试程序的结果，其中也在全球和地方层面上分析了试样的响应。结果表明，裂纹形态对平面外行为有重要影响，并描述了导致平面外破坏的条件。并讨论了单层竖向钢筋构件与双层竖向钢筋构件的区别。在实验程序中考虑的参数的影响进行了处理，表明具有较小的厚度和较大的钢筋含量的部分更容易发生面外破坏。最后，现有模型给出的预测进行比较，新的实验数据。整个数据集是公开的。
The growing need for residential housing in Latin American countries has led to the construction of reinforced concrete buildings with wall thicknesses as low as 8–10 cm. Such walls have typically only a single layer of vertical rebars and are therefore particularly susceptible to out-of-plane failure. In order to investigate the response of the corresponding wall boundary elements, twelve reinforced concrete members with a single layer of vertical rebars were tested under tension–compression cycles. The objective was to gain insight into the parameters governing wall instability and out-of-plane failure, namely the thickness, reinforcement ratio, and eccentricity of the longitudinal rebars with respect to the member axis. This paper summarises the results of the test program, where the specimens' response is analysed also at the global and local levels. The results show that the crack pattern has an important influence on the out-of-plane behaviour and the conditions leading to out-of-plane failure are described. Furthermore, the differences between members with a single layer of vertical rebars and members with two layers are discussed. The influence of the parameters considered in the experimental program is addressed, showing that sections with small thickness and large reinforcement content are more prone to out-of-plane failures. Finally, predictions given by existing models are compared to the new experimental data. The entire data set is publicly available.
循环反转荷载作用下 RC 墙受限边界区域的性能
影响因子：
2
作者：
Taleb R.;Tani M.;Kono S.
通讯作者：
Kono S.