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<p>The mortise–tenon joints in ancient Chinese timber buildings have a significant impact on their lateral resistance. To explore the lateral resistance of timber frames with different mortise–tenon joint connections, this study references existing ancient timber buildings from the Tang, Song, and Qing Dynasties in China. Three different double-span timber frames with different mortise–tenon joint connections were designed and subjected to quasi-static tests under a vertical load of 45 kN. The study analyzes the effects of mortise–tenon joints on the hysteresis curve, envelope curve, stiffness degradation, and energy dissipation capacity of the timber frames. The results show that all timber frames exhibit good deformation recovery capability, and the mortise–tenon joints can withstand significant lateral displacement of the frames. The Qing frame has stronger resistance to deformation and higher energy dissipation, with its maximum restoring force 1.76 times that of the Tang frame and 2.04 times that of the Song frame, but it also experiences faster stiffness degradation. The Tang and Song frames exhibit similar energy dissipation capabilities, but the Tang frame shows higher stiffness and maximum restoring force, while the Song frame has stronger deformation resistance and fuller hysteresis loops. Based on the experimental results, a restoring force model was established for timber frames with different mortise–tenon joint connections.</p>

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Lateral resistance and restoring force model of timber frames with traditional joints in Tang, Song, and Qing dynasties

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月21日

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  • Xinran Li,
  • Shuo Wang,
  • Zhiyuan Chen,
  • Zeli Que,
  • Kohei Komatsu

摘要

The mortise–tenon joints in ancient Chinese timber buildings have a significant impact on their lateral resistance. To explore the lateral resistance of timber frames with different mortise–tenon joint connections, this study references existing ancient timber buildings from the Tang, Song, and Qing Dynasties in China. Three different double-span timber frames with different mortise–tenon joint connections were designed and subjected to quasi-static tests under a vertical load of 45 kN. The study analyzes the effects of mortise–tenon joints on the hysteresis curve, envelope curve, stiffness degradation, and energy dissipation capacity of the timber frames. The results show that all timber frames exhibit good deformation recovery capability, and the mortise–tenon joints can withstand significant lateral displacement of the frames. The Qing frame has stronger resistance to deformation and higher energy dissipation, with its maximum restoring force 1.76 times that of the Tang frame and 2.04 times that of the Song frame, but it also experiences faster stiffness degradation. The Tang and Song frames exhibit similar energy dissipation capabilities, but the Tang frame shows higher stiffness and maximum restoring force, while the Song frame has stronger deformation resistance and fuller hysteresis loops. Based on the experimental results, a restoring force model was established for timber frames with different mortise–tenon joint connections.