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Computers and Concrete Volume 38, Number 3, September 2026 , pages 483-498 DOI: https://doi.org/10.12989/cac.2026.38.3.04 |
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 open accessNumerical simulation on behavior of column-and-tie timber structures damaged by restorative disturbance |
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Yunxiang Hu, Jiachang Bai, Chunjin Lu, Yanan Cao, Ping Zhao
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| Abstract | ||
| In order to prevent the destruction of ancient timber structures in the repair stage, the numerical simulation method is used in this study to analyze the influence of restorative disturbance on the mechanical behavior of ancient timber structures. Based on ABAQUS finite element software, a three-dimensional model of a timber frame is established incorporating an orthotropic elastoplastic material model based on the Hill yield criterion, using the column-and-tie timber structure as the research object. By controlling the energy conservation and hourglass effect of the system, the numerical simulation results are ensured to be effective and reliable. At the same time, the dynamic response characteristics of the column-and-tie timber structure under changes in parameters such as impact mass and impact velocity are studied, and corresponding repair recommendations are provided. The results show that the dynamic responses of the timber frame vary significantly under different working conditions. When the impact mass and impact velocity increase, the impact force and impact point displacement will increase with them, resulting in plastic strain damage, in which mortise-tenon joints are more prone to damage. The closer the impact position is to the joints, the more obvious the structural dynamic response will be. The results of this study can provide a reference for the problems of damage caused by restorative disturbance in the repair stage of column-and-tie timber structures. | ||
| Key Words | ||
| column-and-tie timber structures; impact response; numerical simulation; plastic strain damage; restorative disturbance | ||
| Address | ||
| Yunxiang Hu, Jiachang Bai, Chunjin Lu, Yanan Cao: North Minzu University, No. 204, Wenchang North Street, Xixia District, Yinchuan 750001, Ningxia, China Ping Zhao: Xi'an University of Architecture and Technology, No. 13, Yanta Road, Xi'an 710055, Shaanxi, China | ||