Abstract
In order to study the bonding performance of corroded mortar anchor under dynamic load and reveal the mechanism of dynamic bond-slip, dynamic pull-out tests for mortar anchors with different corrosion degrees were carried out. On the basis of the average bond stress and relative slip, the basic bond-slip constitutive relation of corroded mortar anchor was established according to the measured data. The bond stress under different loading frequency were fitted, and the dynamic influence coefficient affecting the bond performance of mortar anchor was obtained. Based on the bond stress-slip relationship of each point in the anchorage section under different corrosion degrees, the position function in anchorage section was deduced. According to the above basic bond-slip relation, dynamic influence coefficient and anchorage position function, the dynamic bond-slip constitutive relation of corroded mortar anchor regarding to anchorage position was established, which could provide reference for the study on the durability of mortar anchor and its dynamic anchorage performance.
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Acknowledgments
This work was supported by the Foundation for Dalian Distinguished Young Scholars (Grant number 2018RJ10); the Project Supported by the Natural Science Foundation of Liaoning Province, China (Grant number 2020-MS-271); and Scientific Research Project of Education Department of Liaoning Province (Grant number JDL2020010).
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Wang, H., Xin, Y., Zhang, P. et al. Study on Dynamic Bond-Slip Constitutive Relation of Corroded Mortar Anchor. KSCE J Civ Eng 25, 4792–4798 (2021). https://doi.org/10.1007/s12205-021-0149-z
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DOI: https://doi.org/10.1007/s12205-021-0149-z