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古建筑木结构的承载及抗震机理
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TU366.2

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国家自然科学基金（51338001）


Load-bearing and aseismic mechanism of traditional wooden structures
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    摘要:

    从古建筑木结构的材料劣化损伤、材性衰退、柱脚节点、榫卯节点缝隙与性能、斗栱性能与构架性能等几个方面探讨古建筑木结构的承载机理。从宏观和微观尺度分析古建木构材料性能，建立构件层次的古木材性时变模型；提出木柱摇摆抬升的力学模型及精细化分析方法；建立榫卯节点缝隙概率分布模型，构建榫卯节点模型及分析方法；分析单朵斗栱力学性能及斗栱层的协同作用；通过摇摆木构架的试验和理论分析总结节点摩擦耗能、重屋盖高位储能、构架长周期摇摆释能的综合抗震机理。

    Abstract:

    This paper discussed the bearing mechanism of ancient wooden structure from the aspects of damage and degradation of material, column foot joints, gaps and performance of mortise-tenon joints, performances of Dou-gong and wooden frame. A time-varying model of the wood component was proposed based on the macroscopic and microscopic analysis of the wood properties.Then the mechanical model and the fine analysis method of the wooden column with rocking-uplift behavior were established.Also, the probability distribution model of gaps of mortise-tenon joint was established, the model and analysis method of mortise-tenon joints were constructed.And the mechanical properties of single Dou-gong and the synergistic effect of Dou-gong layer were analyzed.Finally, the comprehensive seismic mechanism including the friction energy dissipation of the joints, gravitational potential energy storage of the heavy roof and the energy release of the frame by long period rocking were summarized through the experiment and theoretical analysis of the rocking wooden frame.

    参考文献
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杨庆山.古建筑木结构的承载及抗震机理[J].土木与环境工程学报（中英文）,2022,44(2):1-9. YANG Qingshan. Load-bearing and aseismic mechanism of traditional wooden structures[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2022,44(2):1-9.10.11835/j. issn.2096-6717.2021.063

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  • 收稿日期:2020-02-07
  • 在线发布日期: 2022-02-14
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