孙国军¹, 赵益峰², 薛素铎¹, 李江³, 李晓辉¹
AuthorsHTML:孙国军¹, 赵益峰², 薛素铎¹, 李江³, 李晓辉¹
AuthorsListE:Sun Guojun¹, Zhao Yifeng², Xue Suduo¹, Li Jiang³, Li Xiaohui¹
AuthorsHTMLE:Sun Guojun¹, Zhao Yifeng², Xue Suduo¹, Li Jiang³, Li Xiaohui¹
Unit:1. 北京工业大学建筑工程学院，北京100124；2. 北京工业大学樊恭烋荣誉学院，北京100124；3. 北京工业大学建筑与城市规划学院，北京100124
Unit_EngLish:1．College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
2. Fan Gongxiu Honors College, Beijing University of Technology, Beijing 100124, China
3．College of Architecture and Urban Planning, Beijing University of Technology, Beijing 100124, China
Abstract_Chinese:实际工程中的榫卯节点往往形式复杂, 由多种不同榫卯连接形式组合而成, 称这类节点为复合榫卯节点, 目前复合榫卯节点的连接特性尚不明确．基于沈阳故宫文溯阁古建筑, 以影响该建筑力学特性和抗震性能的一个重要的复合榫卯节点作为试验对象, 进行拟静力试验研究, 分析讨论了该节点的受力变形特征及其破坏形式．得到了相应的弯矩-转角滞回曲线、骨架曲线、特征参数和恢复力模型．试验结果表明复合榫卯节点拥有良好的变形性能, 破坏形式为榫头脱出量超过规范要求导致的破坏, 弯矩-转角滞回曲线呈Z字形, 验证了复合榫卯节点的半刚性能．所得到的恢复力模型可以为文溯阁古建筑的有限元分析提供必要的理论依据, 也可为同类型木结构古建筑的保护和修复提供可靠的试验基础．
Abstract_English:Mortise-tenon joints in actual projects are usually complicated and composed of various patterns in actual projects，which are commonly called unitized mortise-tenon joints. The study is based on The Wen Su Pavilion in Shenyang Imperial Palace，with one of the important unitized mortise-tenon joints as research objects，which contains several different kinds of tenons and can influence the structures dramatically. The pseudo-static experiment was conducted on a full-size timber-joint model to analyze its deformation characteristics and failure modes. The corresponding moment-rotation hysteresis curve，skeleton curve，characteristic parameters and restoring force model were obtained. The results show that the models with mortise-tenon joints exhibit excellent deformation behavior. The destruction of the joint is due to the separation of mortise and tenon. The hysteretic hoops are Z-shaped，which indicates the properties of semi-rigid connection of the timber mortise-tenon joints. The restoring force model built up can provide not only the necessary theoretical basis for finite element analysis of Wen Su Pavilion but also the experimental basis for further protection and restoration of ancient buildings of the same type.
Keyword_Chinese:中国古建筑; 木结构; 复合榫卯节点; 半刚性; 滞回曲线
Keywords_English:Chinese traditional architecture; timber structure; unitized mortise-tenon joint; semi-rigid connection; hysteretic hoop

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