| 摘要: |
| 采用扒钉、CFRP布(碳纤维增强塑料布)和钢箍3种材料加固古建筑木构架榫卯节点.通过人工加载方式，进行低周反复加载试验，分析3种材料加固后榫卯节点M θ（弯矩转角）滞回曲线、M θ均值骨架曲线、耗能能力、刚度退化和延性的变化，对比了3种材料加固榫卯节点的抗震效果，并对3种材料在木构架加固工程中的应用提出建议.结果表明：榫卯节点加固前后均有良好的变形能力；CFRP布加固节点承载力>钢箍加固节点承载力>扒钉加固节点承载力；CFRP布加固节点耗能能力>钢箍加固节点耗能能力>扒钉加固节点耗能能力；CFRP布加固节点刚度退化>扒钉加固节点刚度退化>钢箍加固节点刚度退化;CFRP布加固节点延性>扒钉加固节点延性>钢箍加固节点延性.建议扒钉用于小型木构架加固；CFRP布用于中小型木构架加固；钢箍用于中大型木构架加固. |
| 关键词: 木构架 抗震性能 榫卯节点 加固材料 |
| DOI：10.3969/j.issn.1007 9629.2013.04.017 |
| 分类号: |
| 基金项目:文化部科技创新基金资助项目(17—2009);国家自然科学基金资助项目(50878010) |
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| Aseismic Behaviors of Tenon Mortise Joints in Wooden Frame in Chinese Ancient Building Strengthened by Three Materials |
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ZHOU Qian1, YAN Wei ming2, JI Jin bao2
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1.Ancient Building Department, Palace Museum, Beijing 100009, China;2.Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
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| Abstract: |
| The tenon mortise joints in wooden frame in Chinese ancient building were strengthened by iron hook, CFRP sheets(carbon fiber reinforced plastic sheets) and steel bands. The changes of |
| Key words: wooden frame aseismic behavior tenon mortise joint strengthening material |
