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首页> 外文期刊>Bulletin of earthquake engineering >Experimental and applied element modeling of masonry walls retrofitted with near surface mounted (NSM) reinforcing steel bars
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Experimental and applied element modeling of masonry walls retrofitted with near surface mounted (NSM) reinforcing steel bars

机译：砌体墙体改装砌体墙体（NSM）加固钢筋的实验和应用元素建模

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摘要

In this paper, unreinforced masonry (URM) and retrofitted masonry walls are modeled experimentally and computationally. The walls were subjected to in-plane loading to assess on the effectiveness of a retrofit solution that makes use of near surface mounted (NSM) reinforcing steel bars. A laboratory testing campaign was performed that included pull-out tests, diagonal compression tests, and in-plane cyclic tests of URM and NSM retrofitted physical models. The experimental results indicate that the NSM reinforcing steel bars are effective in improving the deformation capacity of the URM walls. A computational modeling approach that makes use of the applied element method is proposed and the computational results are validated using the experimental tests presented. Results from computational models indicate that a good correlation with the test results is achieved in terms of load-displacement response as well as failure mechanisms observed.
机译：本文在实验和计算上建模了未原始的砌体（URM）和改装的砌体墙。 墙壁进行面内装载以评估使用近表面安装（NSM）加强钢筋的改造溶液的有效性。 进行了实验室测试活动，其中包括URM和NSM改装物理模型的拉出试验，对角线压缩测试和面内循环测试。 实验结果表明，NSM增强钢筋有效地改善URM壁的变形能力。 提出了一种利用所施加的元素方法的计算建模方法，并使用所提出的实验测试验证计算结果。 计算模型的结果表明，在负载 - 位移响应方面实现了与测试结果的良好相关性以及观察到的故障机制。

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