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An Analytical Study on Using Maxwell-Coulomb Friction Damper to Mitigate Quasi-Static Response of SDOF Systems

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

Excessive cumulative stroke in the longitudinal movement of long-span suspension bridge can led to premature fatigue damage in the bridge’s connecting components. However, existing control devices, like viscous damper, remain suboptimal. This paper aims to reveal the underlying mechanism of cumulative stroke control and find an effective control method to address this issue. Firstly, the statistical and frequency characteristics of longitudinal displacement were analyzed based on a 24-hour field measured data set. Secondly, the cumulative stroke control performance of nonlinear viscous damper was evaluated with a SDOF system, uncovering the reasons for their low efficiency in controlling cumulative stroke. Thirdly, the Maxwell-Coulomb friction damper was introduced to control the excessive cumulative stroke, and its effective control performance was validated. Finally, a novel parallel model combining viscous dampers and friction dampers was proposed to leverage the superior performance of friction damper in controlling the cumulative stroke under daily operation condition, while also harnessing the seismic response mitigation capacity of the viscous damper. This research enhances the understanding of cumulative stroke control in long-span suspension bridges and presents an innovative control method by introducing the Maxwell-Coulomb friction damper, highlighting its potential for practical application in bridge engineering.

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Acknowledgments

This research was supported by the National Natural Science Foundation of China (No. 52178284 and 51708203), Natural Science Foundation of Hunan Province (No. 2021JJ30106), the Science and Technology Research Project of Xiamen University of Technology(YKJ23005R), the Opening Fund of Key Laboratory for Wind Engineering and Bridge Engineering of Hunan Province (No.2022ZDK001). The authors would also like to thank Jiangsu Yangtze Highway Bridge Co., Ltd. for sharing the 24-hour displacement monitoring data of girder end motion.

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Correspondence to Zhouquan Feng.

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Liang, L., Feng, Z., Zhang, H. et al. An Analytical Study on Using Maxwell-Coulomb Friction Damper to Mitigate Quasi-Static Response of SDOF Systems. KSCE J Civ Eng 27, 4762–4769 (2023). https://doi.org/10.1007/s12205-023-1365-5

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  • DOI: https://doi.org/10.1007/s12205-023-1365-5

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