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Anchorage and tension-stiffening effect between near-surface-mounted CFRP rods and concrete

机译：近表面CFRP杆与混凝土之间的锚固和抗拉刚度

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摘要

The aim of the experimental program developed in this work was to investigate the effects of concrete strength, filling material, groove dimensions, groove surface preparation for such CFRP rods used in the Near-Surface Mounted reinforcement (NSM) technique. Two interfaces are involved in the NSM technique: one between the reinforcing composite rod and the filling material and the other between this material and the old concrete. The coupling between the two interfaces was studied through two mechanical tests: the usual pull-out test, which assessed the anchoring capacity of the CFRP rods, and the tension member test, which simulated the behavior of the CFRP rod bond in the tensile zone of an RC-structural element.
机译：在这项工作中开发的实验程序的目的是研究混凝土强度，填充材料，沟槽尺寸，在近表面安装钢筋（NSM）技术中使用的CFRP杆的沟槽表面处理的影响。 NSM技术涉及两个接口：一个在增强复合材料杆与填充材料之间，另一个在该材料与旧混凝土之间。通过两个机械测试研究了两个界面之间的耦合：常规拉拔测试（评估CFRP杆的锚固能力）和拉力构件测试（模拟拉力测试）中CFRP杆粘结的行为。 RC结构元素。

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